NCPTT’s Materials Conservation Program works in partnership with parks, laboratories, government agencies, universities and others to understand how cultural objects deteriorate with time.

The program’s goals are

  1. to understand cultural resources decay,
  2. to develop and evaluate new treatments to protect cultural resources and
  3. to disseminate scientific results and preservation technologies through presentations, publications, and training for preservation professionals nationwide.

A special interest within the program is the study of outdoor air pollution effects on cultural materials. Research projects are developed internally at the NCPTT Environmental Exposure Facility located on the campus of Northwestern State University, Natchitoches, Louisiana, and externally through cooperative and interagency agreements, contracts and grants.

Partnering to Protect

The Materials Conservation Program seeks partnerships within both the public and private sector to collaborate on projects of mutual interest that advance preservation technology. For example, The U.S. General Services Administration (GSA) is responsible for Federal Properties across the country including many historic buildings. Currently they are establishing policies for the maintenance and treatment of terrazzo flooring found in may of these buildings. They lack the expertise to scientifically evaluate treatments. Together, the Materials Conservation Program and the GSA have joined to study and evaluate treatments such as vitriciation of terrazzo floors.

In order to understand the complex interactions of air pollution with materials, the Materials Conservation Program helped to develop a unique recirculating exposure chamber that allows us to expose materials such as stone or metal samples to air pollution under controlled conditions. Using this chamber, the uptake of pollution on surfaces can be measured. Researchers can look at how different features of the material affect pollution deposition and develop new treatments to minimize damage to materials. Currently, the program has initiated partnerships with organizations like DuPont Corporation to test new treatments for limestone and marble. The treatments may include stone strengtheners, pollutant repellents, or surface protectants.

Meeting the Needs of Preservation

In addition to our laboratory research, we actively look at preservation issues in the field. For example, the program is examining technical issues associated with the preservation of historic cemetery monuments. New technical approaches in cemetery preservation range from advances in databases and geographical information systems to new treatments to deter biological growth on stone. As we evaluate new treatments and methodologies, we seek field test sites for further trials. Based on our research, we offer cemetery monument conservation workshops advancing the latest knowledge in cemetery preservation.

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This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Challenges of Treating Delaminating Slate Headstones: New Treatments with New Materials by Irving Slavid Irving Slavid:  I see they’ve brought the break out, the danishes, so I won’t be long. I do hands-on restoration among other things and I’m going ...

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Confederates in the Cemetery: Federal Benefits & Stewardship
National Cemetery Confederate headstone:   Fort Smith, AR
 

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Bronze Plaques (Keokuk, IA)
 

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12/03/2014
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Final Results
 

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Original (left) and successor(right) Monument.
 

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Absalom Day
 

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11/17/2014
Fragile Grounds: Mapping South Louisiana’s Cemeteries
Holy Family, Cocodrie
All Saints Day
 

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11/05/2014
Handcrafted Gravemarkers of Julius “Jesse” Thomas
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11/03/2014
Made from My Own Hand: An Introduction to Concrete Grave Markers
Preservatrion Issues: Before and After
 

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10/29/2014
In Small Things Remembered: The William Peters Reeves Grave Memorial at Kenyon College
William Peter Reeves Grave Site
 

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10/27/2014
Equipment for Xeroradiography Center at the University of Arizona (2014-06)
2014-06
 

The Laboratory for Cultural materials in the Department of Materials Science and engineering, led by Professor Pamela B. Vandiver, has established a facility for non-destructive for imaging of the internal structure of objects and materials using xeroradiography. This electrostatic technique provides edge-enhancement of flaws, macrostructural and textural features to a resolution of 50 microns. Supported ...

10/22/2014
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Biological Growth on Failing Joint & New Wool
 

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10/22/2014
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Applying wax to Red Jacket
 

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10/20/2014
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Portland Cement versus Historic Gravestones.
 

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10/15/2014
Returning From Oblivion: The Reemergence of a World War II Memorial Sundial
Sun Dial before conservation treatments.
 

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St. Philip's churchyard, Charleston, SC
 

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10/06/2014
Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions
Probe Survey
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions by Hugh B. Matternes and Valerie Davis Hugh: Good morning, I’m hoping you’ll learn not only from the results we have here but some of the mistakes we made ...

09/29/2014
Down to Earth: Conservation Decision-Making for Historic Cemeteries
Screen Shot 2014-09-24 at 8.18.22 AM
 

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Examples of active destruction, families moving from the area, and more passive neglect.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Cycle of Use, Neglect, and Renewal in Historic Family Cemeteries of Niagara, Ontario by Catherine Paterson Paterson: Thank you. I’m very excited to be here and to be speaking with you this morning. The focus of my talk is on ...

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Gates are easy targets for theft.
 

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They Died in Rome: Preservation of an Active, Historic Cemetery for Foreigners
The cemetery is also know for the "wildlife".
 

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This detail of a merman exemplifies vein erosion of the limestone throughout the fountain.
 

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09/09/2014
Maintenance Maladies-Who is Minding the Fountain?
Pan of Rohallion bronze.
 

This talk is part of the Fountain Fundamentals Conference July 10-11, 2013, Kansas City, MO.

09/02/2014
Water Chemistry Guidelines for Art Fountains by Martin Burke
Picture2
 

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Littlefield Fountain
 

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Testing the Use of Medical Chelating Agents to Remove Iron Stains on Marble
Leah Poole preps marble samples for testing.
 

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A Stitch in Time
Participants were eager to complete their projects.
 

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Comparative Study of Commercially Available Rust Converters
Intern Anna Muto applying rust converter to test samples.
 

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Fountain NY Botanical Gardens
 

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Fifth Graders Learn about the Effects of Acid Rain on Cultural Materials
Student looks at limestone in thin section.
 

On April 24th NCPTT’s Materials Conservator Jason Church taught a lesson to two fifth grade classes (total of 56 students) from Northwestern State University Elementary Lab School. The students looked at how acid rain is produced and how pollution affects cultural materials. As part of the lecture Church discussed experimental design and the scientific method. The ...

06/12/2014
Divine Disorder: Folk and Outsider Art Conference 2015
Howard Finster's Paradise Garden
 

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06/09/2014
ENGINEERING 281: Renovation of Fountains – Hydraulic Considerations by David Peterson
Fountain at Kingston Oaks.
 

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06/06/2014
Historic Preservation Program at Mississippi College (Podcast 51)
SAM_0643
 

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05/28/2014
Art and Infrastructure: Restoring the Futuristic Fountain and Reflecting Pool
Olle Holmsten Fountain
 

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A Brief Appreciation of Fountains Through History: Changing Functions, Appearances, and Meaning by John Scott
Ai Weiwei fountain at Princeton.
 

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05/12/2014
FBI and Art Crime (Podcast 50)
Randy Deaton takes a close look at a Toye forgery at the Gallery 2 show
 

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05/07/2014
Challenges of Maintaining the Fountains of “The City of Fountains” – Kansas City by Jocelyn Ball-Edson
JC Nichols Fountain
 

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05/05/2014
Divine Disorder: Folk and Outsider Art Conference 2012
Participants talk with Juanita Leonard at her folk art church in Montgomery, Louisiana
 

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04/30/2014
Aquatic Plants for Water Quality Maintenance in Water Features and Fountains by Mary Willeford-Bair, Catherine Dewey, and Walter Zachritz
Aquatic plant boxes in water feature.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Aquatic Plants for Water Quality Maintenance in Water features and Fountains Mary Willeford-Bair : The National Park Service is responsible for the management of a variety of constructed water features across the nation. The National Park Service is held to a high ...

04/28/2014
A Manageable Approach for the Maintenance of Fountain Water
Biogrowth on Noguchi Fountain
 

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Masonry Production and Repair: 160 Years of Indexed Bibliography – 1837-1997 (1997-32)
 

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04/11/2014
Materials Characterization Utilizing Advanced Spectral Imaging (2011-18)
2011-18
 

The use of noninvasive advanced imaging techniques addresses a critical need to support preservation at all levels – national, state and local. The grant supported the advancement of non-destructive analyses through the integration of aligned spectral techniques to develop a multi-functional system with enhanced capabilities for heritage science. The techniques better informed materials characterization to ...

04/10/2014
Understanding Traditional and Modern Paints and Stains for Exterior Wood (2014-01)
2014-01
 

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04/10/2014
Use of Hydroxyapatite for enhancing durability in marble
Hydroxyapatite
 

Use of Hydroxyapatite for enhancing durability in marble. This video highlights the recent project by George Scherer’s laboratory at Princeton University on developing state-of-the-art techniques to protect marble monuments and sculptures. This project was funded in part by PTT Grant (MT-2210-12-NC-08). Marble is an elegant material that is used for our most precious sculptures and monuments, ...

03/12/2014
The Science of Sand
Sand sample from Kemil Beach National Lake shore at 3x.
 

“The Science of Sand” crowd sourced database. One of the things that we at NCPTT try not to do is reinvent the wheel. We are however always looking to others that are working on interesting wheels that might help us in the realm of heritage preservation. One of the our main goals in to be a ...

03/11/2014
Monuments Men and Modern Day Heroes
Walker Hancock, Lamont Moore, George Stout and two unidentified soldiers in Marburg, Germany, 1945 June. Photo: Archives of American Art
 

Press Release from the American Institute for Conservation WASHINGTON, D.C. – The American Institute for Conservation of Historic & Artistic Works applauds The Monuments Men movie, whose cast depict some of those who served in the Monuments, Fine Arts, and Archives program under the Civil Affairs and Military Government Sections of the Allied armies during World War II. This ...

02/04/2014
What about Soapstone?
Soapstone marker at Reddies River Cemetery, Wilkes County, NC.
 

If a soapstone marker is in the need of cleaning. I would only recommend the softest of brushes and water, I  have used a baby hair brush with great results. The biggest thing to keep in mind it how very soft this stone is, some soapstones have a value of 1 to 2 on the ...

01/15/2014
Fountain Conservation California Style
Electric Fountain photo by Lisa Newton
 

This talk is part of the Fountain Fundamentals Conference, held July 10-11, 2013, Kansas City, MO. Fountain Conservation-California Style by Andrea Morse Video Transcription Hello, my name is Andrea Morse, I’m principal conservator of the Sculpture for Conservation Studio in Los Angeles.  Today my presentation will introduce you to the styles, some history and fountain problems that one ...

01/07/2014
Corrosion Resistance Surface Treatment for Marble (2013-07)
2013-07
 

Marble is used in many of our most precious monuments and sculptures, but it deteriorates when exposed to water, owing to its relatively high solubility. Consequently, researchers have sought methods to enhance the durability of marble through the use of environmentally friendly chemical treatments. A particularly promising route, introduced by our research group, is to ...

01/03/2014
Conservation & H‐RTI
H-RTI of an Egyption Stone Figure
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Conservation and H‐RTI at The Metropolitan Museum of Art In the winter of 2010, the Sherman Fairchild Center for Objects Conservation at The Metropolitan Museum of Art hosted a four‐day intensive workshop on Highlight‐based Reflectance Transformation Imaging ...

10/24/2013
Pigment Identification Workshop
JoeBarabe-slider-rotator
 

The National Center for Preservation Technology and Training (NCPTT) and The Hooke College of Applied Science with the McCrone Group, Inc. are partnering to host a three-day hands-on workshop on Pigment Identification and Analysis for fine art and architectural finishes. The workshop will be held February 25-27, 2014 at the NCPTT in Natchitoches, LA. This ...

10/24/2013
Four Light Total Appearance Imaging of Paintings
Rendering using studio lights at 45° from the left and right where the left side has three times more light intensity from a distance of two feet.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Four Light Total Appearance Imaging of Paintings by Roy S. Berns, Tongbo Chen, and Jim Coddington Imaging artwork for documentation and reproduction has a long and rich history. The vast majority of such imaging reduces an illuminated three-dimensional ...

10/23/2013
The Patternmakers Art: Innovation within a Timeless Tradition
Digital model for casting form.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The Patternmakers Art: Innovation within a Timeless Tradition With a few exceptions, architectural metal castings are made using hollow cavity sand and clay molds.  The molds are made by compacting the sand around patterns which look like ...

10/23/2013
Identification of Organic Pigments in Colored Pencils (2000-26)
2000-26
 

Three hundred twelve (312) colored pencils were provided from each of six manufacturers representing the most widely used brands marketed as fin art materials. The pencils were blinded (stripped of identifying commercial information, coded, and sent to the Principal Investigator (PI) by Joy Turner Luke and Rhonda Farfan, who assigned codes to the test pencils: ...

09/22/2013
Preservation of Covered Bridges
8287299051_d0c58af9bb_h
 

Guide for In-Place Treatment of Wood in Historic Covered and Modern Bridges This guide is another fine product written by the Forest Service’s Forest Products Laboratory, in cooperation with the US-DOT, Federal Highways Administration.  The publication’s abstract gives great description of the book; “Historic covered bridges and current timber bridges can be  vulnerable to damage from ...

08/30/2013
Rising Damp Symposium
Rising Damp Workshop
 

NCPTT is a sponsor of the Galveston Historical Foundation’s Center for Coastal Heritage (CCH) two day symposium focusing on the challenges surrounding rising damp on Friday and Saturday, October 25 and 26, 2013.  Reservations for the symposium are $75 per person if purchased before September 30th.  Student discounts are available.  Tickets can be purchased at www.galvestonhistory.org or by calling ...

08/30/2013
Disaster Preparedness and Response for Historic Cemeteries
Tree down in cemetery after a windstorm.
 

Thank you for joining us today.  This is the second day of our webinars on disaster preparedness.  Thank you for those who are returning from yesterday and welcome to those that are coming for the first time.  Luckily, most of you know who NCPTT is, having gone to our web site and found out about ...

08/28/2013
Oil & Cultural Resources
DSC_0202FortLivingston
 

Hi, I’m Carol Chin.  I’m a Conservation Scientist at theNational Center for Preservation Technology and Training, and I’ve been doing some work with my colleagues here on the Gulf Oil Spill and conservation of some cultural resources down along the coast.  So today I’m going to be talking about Oil and Cultural Resources – Lessons ...

08/27/2013
Disaster Preparedness & Response Workshop, September 25 in Natchitoches, LA
fire at kate chopin house
 

The National Center for Preservation Technology and Training and the Cane River Creole National Historical Park will be conducting the third in a series of workshops this summer related to disaster preparedness and response for museum collections. The Lower Mississippi River Delta Region is frequently threatened by natural disasters including hurricanes, floods, and tornadoes. It is important for the ...

08/23/2013
Disaster Preparedness and Response Workshop in Tunica, MS
Tunica Museum
 

Disaster Preparedness and Response for Collections along the Delta Workshop offered in Tunica, Mississippi. On July 23, 2013 NCPTT conservator’s Jason Church (Materials Conservator) and Sarah Jackson (Architectural Conservator) taught a day long workshop at the Tunica Museum. This workshop was offered as part of a Lower Mississippi Delta Initiative Grant from the National Park Service. The ...

08/23/2013
Disaster Preparedness and Response
MacArthur Museum of Arkansas Military History
 

On July 24, 2013 NCPTT conservators Jason Church (Materials Conservator) and Sarah Jackson (Architectural Conservator) taught a day long workshop at the MacArthur Museum of Arkansas Military History. This workshop was offered as part of a Lower Mississippi Delta Initiative Grant from the National Park Service.

08/21/2013
Texas Wildfires and Bastrop State Park
Damage Fehr July 2012
 

Download this episode as an mp3 or Subscribe via iTunes Learning From the Texas Wildfires: Bastrop State Park and Beyond (Podcast 45) Kevin: Welcome to the Preservation Technology Podcast – the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center ...

08/19/2013
Petrographic Analysis for Conservation
Participants in the 2013 Petrography Workshop
 

Register for this two-day hands-on workshop on the uses of polarized light microscopy for the study of stone and ceramic cultural materials. The workshop will be held March 11-12, 2014 at NCPTT in Natchitoches, LA.

08/12/2013
Scholarships for the Advanced Masters in Structural Analysis of Monuments and Historical Constructions
European Commission Logo
From: WikiCommons
 

Applications for the Advanced Masters in Structural Analysis of Monuments and Historical Constructions, approved by the European Commission within the framework of the Erasmus Mundus Programme, are opened up to August 20, 2013.

07/26/2013
Workshop: Disaster Prep & Response for Collections, July 23 & 24
fire at kate chopin house
 

The Delta Region faces natural disasters frequently from hurricanes, flooding, and tornadoes to name a few. It is important to ensure that collections managers are prepared for natural disasters that frequent the area.

07/03/2013
Assessing the Value of Laser Scan Data
Mess Hall – National Home for Disabled Volunteer Soldiers James H. Quillen Veteran’s Affairs Medical Center
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Documentation to the Secretary of the Interior’s Standards: Assessing the Value of Laser Scan Data The Heritage Documentation Programs consider High-Definition Surveying (HDS) to be a significant tool, one of many it employs in the survey of ...

06/12/2013
Archive of Digital Data for HABS, HAER, and HALS
Jones Barn, Library of Congress Collection.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Archive of Digital Data for HABS, HAER, and HALS The NPS creates a variety of documents and records, such as inventory and monitoring plans, drawings, photographs, and conservation treatment records, to assist in the planning, management and ...

06/11/2013
Disaster Recovery Resources
Residential neighborhood in New Orleans one year after Hurricane Katrina made landfall. (photo NCPTT)
 

Disasters can strike at anytime, sometimes with little or no warning. Experience has shown us that while natural disasters can leave a path of destruction there are also man-made disasters that can bring an area to its knees. Being informed and preparing for those that could affect you are key to saving your site, building ...

06/05/2013
Conservation Scientist for a Day 2013
Conservation Scientist for a Day 2013
 

Conservation Scientist for a Day One day event offered July 30, 2013 to students who have finished the 8th grade or those who participated in the 2013 NCPTT Robot Camp. $10 per person limited to 25 students STUDENTS WILL INVESTIGATE AUTHENIC POTTERY SHARDS AND PARTICIPATE IN HANDS-ON EXPERIMENTS! Instructors: Curtis Desselles, Carol Chin, Jason, Church, Mary Striegel

05/07/2013
Webinar: Preparing for the Next Disaster
9th Ward Damage after Hurricane Katrina
 

The broadcast for Preparing for the Next Disaster has concluded. Once transcripts and closed captioning have been completed, we will place the videos online. Thank you for your participation. Should you have any questions, please comment on this post or email Sarah M. Jackson. NCPTT offered a free webinar “Disaster Preparedness for Cultural Resources: Preparing You ...

05/03/2013
Robotics Camp 2013
robotics-2013
 

  Learn: Soldering, Programming, Electronics, Robot  Assembly, Navigation Using Sensors and More!  Robotics Camp Avoidance.ino - Right click and Save as. Please contact Curtice Desselles for infrared sensor use.   Who: Middle and High School Students(finished 6th grade to 12th grade) Location: National Center for PreservationTechnology and Training, 645 University Parkway Natchitoches, LA 71457 318-356-7444 Time: 9:00 AM to 12:00 Noon each day Attire: Casual Attire: Jeans and T-Shirts. Cost: • ...

05/01/2013
Development of an Evaluation Methodology for Cleaning Damage Assessment (1996-32)
1996-32
 

The aim of the project was to determine an appropriate methodology for evaluation of damage induced during cleaning of masonry materials. Of the techniques used for the evaluation of surface changes, measurement of roughness appeared to be most promising.  

04/29/2013
3D Modeling of a Gravestone
Abate
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA 3D Modeling of a Gravestone Exploiting Low Cost Range and Image Based Techniques Inside the Medieval Museum of the city of Bologna are housed a series of gravestones which originally adorned the tombs of the Doctors belonging ...

04/18/2013
A Comparative Study Using LiDAR Digital Scanning and Photogrammetry
Nulty
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA A Comparative Study Using LiDAR Digital Scanning and Photogrammetry Through a National Park Service grant, the Center of Preservation Research (CoPR) at the University of Colorado Denver and the Bureau of Land Management (BLM) have partnered to develop ...

04/18/2013
High Resolution Digital Photogrammetry with Object Surface Texture
Brown
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA High Resolution Digital Photogrammetry with Object Surface Texture Digital Photogrammetry when coupled with multi-image capture can provide high resolution imagery with detailed surface texture. Surface texture can be in greater detail than traditional point cloud laser scanning, and the ...

04/17/2013
NCPTT helps Girl Scouts earn Save Outdoor Sculpture patch
The Girl Scouts are still all smiles after 3 hours of scrubbing headstones.
 

NCPTT helps Girl Scouts earn Save Outdoor Sculpture patch   On Friday April 5th 24 Girl Scouts from Natchitoches’ Brownie Troop 462 and Junior Troop 1512 came to NCPTT to start their Save Outdoor Sculpture patch. The Save Outdoor Sculpture (SOS!) program is a nationwide effort to identify, document, and preserve America’s sculptural heritage. This long running ...

04/08/2013
Application of Current 3D and Pseudo-3D Imaging for Conservation by Melvin Wachowiak, Senior Conservator E. Keats Webb, Digital Imaging Specialist, Smithsonian Museum Conservation Institute, Washington D.C.
Wachowiak
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Application of Current 3D and Pseudo-3D Imaging for Conservation Melvin Wachowiak, Senior Conservator E. Keats Webb, Digital Imaging Specialist Smithsonian Museum Conservation Institute, Washington D.C. Conservation professionals have been aware of modern methods of 3D digitization, but a comprehensive guide ...

04/03/2013
NCPTT Staff Receives Leica Training
NCPTT Staff with DM750P Microscope.
 

NCPTT Staff Receives Leica Training   On March 13, 2013 Leica trainer Walker Agnew of McBain Systems, Irving, TX presented to the NCPTT staff. Agnew presented to staff from the Materials Conservation, Architecture and Engineering, and Archeology and Collections divisions of NCPTT. Staff were trained on the use of the Leica DM750P microscope, ICC50 HD digital microscope ...

04/01/2013
Restoring the Lion’s Roar: Documenting and Replicating Limestone Structures Through Laser Scanning, 3D Computer Modeling, and CNC Machining
Smith
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Restoring the Lion’s Roar: Documenting and Replicating Limestone Structures Through Laser Scanning, 3D Computer Modeling, and CNC Machining In January 2011, Kreilick Conservation, LLC of Oreland, PA was engaged by Beaver Electric Co. Inc. to conserve the Branch ...

04/01/2013
Nondestructive Evaluation Methods for Historic Structures
Nondestructive Evaluation Methods for Historic Structures
 

Association for Preservation Technology International in conjunction with the APT Hawaii-Pacific Islands Chapter announces a workshop on Nondestructive Evaluation Methods for Historic Structures to be held at Bishop Museum, Atherton Hālau, 1525 Bernice Street, Honolulu, Hawai‘i 96817

03/28/2013
Cemetery Conservation Workshop in Pineville, Louisiana
Hands-on portion held at the Rapides Cemetery.
 

  NCPTT, in partnership with the Historical Association of Central Louisiana, will offer a cemetery monument conservation basics workshop April 20, 2013, in Pineville, Louisiana.  The training is targeted to the nonprofessional, such as church sextons, genealogists, cemetery grounds workers, and family members. The workshop registration is $20 per person, this price includes a box lunch. The ...

03/28/2013
Study on the Durability of Traditional and Modified Limewash Recipes (2005-03)
2005-03
 

This report summarizes testing undertaken by NCPTT in partnership with the Cane River Creole National Historical Park (CARI) and Quality Finish.  In December 2003 meetings were held to discuss applying limewash to the brick cabins at Magnolia Plantation in hopes of prolonging the life of the structures. We developed a study to determine the durability of traditional and ...

03/27/2013
The Conservation and Preservation of Tabby: A Symposium of Historic Material in the Coastal Southeast (1998-37)
1998-37
 

Forty participants representing a variety of professionals disciplines were invited to Georgia’s Jekyll Island during February 1998, with the common goal of preserving tabby resources. The proceeding from this meeting — individual papers and conclusions and recommendations developed by participants — are represented in this publication. This research was made possible through Grant  MT-2210-7-NC-24 from the National Center ...

03/26/2013
Kamehameha I Sculpture Conservation Treatment Report (2001-12)
2001-12
 

The conservation project was conducted between September 1998 and June 2001. Because of the importance of the monument to north Kohala and widespread concern for its care, a community based project model was employed. the primary aim of the project was to conserve the monument, which was threatened by chloride induced corrosion. Driven by a ...

03/24/2013
John Asmus on Laser Cleaning “Have Laser Will Travel” (Podcast 42)
John Asmus
 

Download this episode as an mp3 or Subscribe via iTunes Ammons:     Welcome to the Preservation Technology Podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join NCPTT’s Jason ...

03/22/2013
Applications of Reflectance Transformation Imaging (RTI) in a Fine Arts Museum: Examination, Documentation, and Beyond
RTI of Attic Pottery
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Applications of Reflectance Transformation Imaging (RTI) in a Fine Arts Museum: Examination, Documentation, and Beyond In 2006, the Worcester Art Museum collaborated with Cultural Heritage Imaging (CHI) to develop reflectance transformation imaging (RTI) as a viable examination ...

03/20/2013
NPI presents 2013 cemetery workshops
DSC_8607
 

The National Preservation Institute, a nonprofit organization founded in 1980, educates those involved in the management, preservation, and stewardship of cultural heritage. The 2013 National Preservation Institute seminar schedule is available online at www.npi.org. The 2013 NPI News Release includes the calendar and seminar descriptions www.npi.org/NewsRelease2013.pdf. Deadline to register: April 1, 2013 Scholarship applications accepted (see details ...

03/18/2013
Conservation Scientist for a Day
Students investigate glaze types with chemical spot testing under the supervision of Dr. Carol Chin.
 

In an ongoing commitment to promote heritage education in historic preservation, the Materials Conservation Program at NCPTT recently hosted 50 high school juniors from the Avoyelles Public Charter School. For the third year these students took part in the “Conservation Scientist for a Day” lesson.   The students studied archeological sherds of  Native American pottery and French ...

03/14/2013
Automated Classification of Surface Texture for Photographic Paper
Messier
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Automated Classification of Surface Texture for Photographic Paper Surface texture is a vital attribute defining the appearance of a photographic print.  Texture impacts tonal range, rendering of detail, reflectance and conveys subtle qualitative information about the aesthetic ...

03/12/2013
Cemetery Conservation Workshop in Natchez, Mississippi
Participants clean marble headstone during the December workshop.
 

NCPTT, in partnership with the Historic Natchez Foundation  will offer a cemetery monument conservation basics workshop May 11, 2013, in Natchez, Mississippi.  The training is targeted to the nonprofessional, such as church sextons, genealogists, cemetery grounds workers, and family members. The workshop registration is $25 per person, this price includes a box lunch. The lecture portion ...

02/27/2013
KeckCAVES, Immersive 3D Visualization System for Cultural Sites (Podcast 41)
KeckCAVES 3D Visual
 

In this episode, we join NCPTT’s Jason Church as he speaks with Marshall Millet, owner of MMars 4-D. Today they are talking about Millet’s work with U.C. Davis and the KeckCAVES visualization facility.

02/15/2013
Call for presentations, International Cemetery Preservation Summit
Participant of the 2009 Nationwide Cemetery Preservation Summit, in field session on dry ice dusting.
 

Call for presentations and posters, International Cemetery Preservation Summit NCPTT is soliciting oral and poster presentations that focus on research and innovation in cemetery conservation and preservation for the NCPTT’s International Cemetery Preservation Summit to be held in Niagara Falls, NY, October 8-10, 2013. Topics for presentation may include recent developments in technologies, unique treatments, and creative ...

02/13/2013
Documenting National and World Heritage Sites: the Need to Integrate Digital Documentation and 3D Scanning with Traditional Hand Measuring Techniques
NPS Arrowhead Logo
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Documenting National and World Heritage Sites: the Need to Integrate Digital Documentation and 3D Scanning with Traditional Hand Measuring Techniques For the past fifteen years, digital documentation technology of historic sites and resources has developed into a ...

02/06/2013
3D Scanning of Matisse, the Back I-IV: One Thing After Another
Zycherman
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA 3D Scanning of Matisse, the Back I-IV: One Thing After Another Matisse created Back, his largest sculpture in 1908/1909. Matisse resculpted Back three times over the next twenty-one years (1913, 1917, 1930/31), each time beginning with a ...

01/30/2013
Molecular Characterization and Technical Study of Historic Aircraft Windows and Head Gear using Portable Raman Spectroscopy (2013-01)
2013-01
 

  If you have sat in the window seat, chances are you noticed that the airplane window was made of plastic.  In fact, most aircraft include plastics in their design and have done so from the early years of human flight, yet the technological history of synthetic polymers in aviation is largely unexplored.  This may be ...

01/28/2013
Comparing Digital Photogrammetric Methods for Preservation Documentation
RTI imaging at the Abiquiu front gate.
 

With a 2011 Grant from NCPTT, conservators at Georgia O’Keeffe’s Residences in Abiquiu and Ghost Ranch, New Mexico undertook research comaparing digital photogrammetric methods for preservation documentation of historic homes. They documented their project as they went along at http://okeeffeimagingproject.wordpress.com/. This project studied whether existing, three-dimensional (3D) digital photo imaging technologies could be easily adopted by ...

01/28/2013
Cooperation Creates A Custom Crate: Conservation, Laser Scanning, 3D Milling and Crate Building Work Together
Oldenburg_Poster_Zycherman_OBanion1
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size COOPERATION CREATES A CUSTOM CRATE: Conservation, Laser Scanning, 3D Milling and Crate Building Work Together Claes Oldenburg’s Red Tights with Fragment 9 (1961) is created from single piece of contoured chicken wire, ...

01/28/2013
Recording Structure and Process: HAER 3D Digital Documentation Methods
Recording Structure and Process: HAER 3D Digital Documentation Methods
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Recording Structure and Process: HAER 3D Digital Documentation Methods For many historic engineering works the structure’s historical significance is based on its structural design. This is especially true for bridges. By understanding ...

01/28/2013
Advances in Computational Photograph Techniques for Cultural, Historic, and Natural History Materials
PageLines- petrography-training.jpg
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Advances in Computational Photograph Techniques for Cultural, Historic, and Natural History Materials This talk presents advances in robust new imaging tools from the emerging science known as Computational Photography. The common feature of the computational photography imaging ...

01/25/2013
Laser Scanning America’s Cultural Landscapes
Laser Scanning America's Cultural Landscapes
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Poster full size and detail Laser Scanning America’s Cultural Landscapes The Historic American Landscapes Survey (HALS) Documentation to the Secretary of the Interior Standards, Assessing the Value of Laser Scan Data The Historic American Landscapes Survey (HALS) mission is ...

01/23/2013
Post-Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information
Post‐Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Full Detailed Poster   Post-Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information This poster aims to demonstrate the unique challenges associated with scanning and documenting OV-103 (Space Shuttle Discovery). In demonstrating the workflow ...

01/23/2013
3D Data Recordation and Immersive Visualization: Considerations for Creative Mitigation Practices
MRM_NCPTT_Final_07-12
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size   3D Data Recordation and Immersive Visualization: Considerations for Creative Mitigation Practices The proposed presentation approaches the potential of 3d data collection and analysis in an immersive 3d visualization system, emphasizing digital format ...

01/23/2013
Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization
Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization The Natural Resource Analysis Center (NRAC) at West Virginia University is building a portfolio of integrated LiDAR (Light Detection And Ranging) ...

01/22/2013
Mind the Gap: the Need to Supplement Laser Scan Data in HABS Documentation Projects
NCPTT HABS Poster_Final
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Mind the Gap: the Need to Supplement Laser Scan Data in HABS Documentation Projects The HABS poster will discuss the use of laser scanning in relation to the documentation of historic buildings. ...

01/20/2013
Thin Section Petrography for Conservation (Podcast 40)
Chandra Reedy helps students during the 2012 Petrography for Conservation class
 

Today we join NCPTT’s Mary Striegel as she speaks with Chandra Reedy. Reedy serves as Director of the Laboratory for Analysis of Cultural Materials in the Center for Historic Architecture and Design at the University of Delaware.  Today we are talking to Chandra about the importance of thin section petrography for conservation.

01/15/2013
FAIC Cultural Recovery Center
Materials Conservator Jason Church loads a newly constructed paintings rack with water damaged canvas
 

On October 29, 2012 Hurricane Sandy made landfall in the New York and New Jersey coastal area. The news covered the destruction, devastation and loss to homes, business, and families. In the weeks after the storm surge had receded we first started hearing about the loss and damage to cultural materials. The first time I ...

01/14/2013
The Patternmaker’s Art: Innovation within a Timeless Tradition
Howell
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The Patternmaker’s Art: Innovation within a Timeless Tradition With a few exceptions, architectural metal castings are made using hollow cavity sand and clay molds.  The molds are made by compacting the sand around patterns which look like ...

01/07/2013
Foamhenge: 3D Modeling and Conservation of a Monumental Sculpture
Swett
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Foamhenge: 3D Modeling and Conservation of a Monumental Sculpture Novel use of technology, 3D digital documentation, model-based engineering, contemporary materials and techniques illustrates the potential that digital documentation and technology has in supporting creative and collaborative problem-solving.  ...

01/07/2013
Best Practices for Digital Documentation
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Best Practices for Digital Documentation by Ekaterini Vlahos and Mike Nulty Through the HABS/HAER/HALS programs the Secretary of the Interior has established Standards and Guidelines for Documentation and acceptability for inclusion in the Heritage Documentation Programs collections ...

01/07/2013
3D Digital Documentation as a Basis for the Finite Element Method in the Restoration of Tullio Lombardo’s Marble Sculpture of Adam
Street
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The video is currently unavailable for this talk. 3D Digital Documentation as a Basis for the Finite Element Method in the Restoration of Tullio Lombardo’s Marble Sculpture of Adam On October 6th 2002, one of the most important ...

01/06/2013
2013 Summer Internships
Applications for the 2013 Summer Internship Program are due February 4.
 

It’s more than just a job… it’s your future. Get hands-on experience and build your resume while preserving the history of our country. Summer internships at NCPTT provide students and recent graduates an opportunity to undertake laboratory or field research in archeology, architecture, engineering, collections management, historic landscapes, and materials science. What do interns do? Interns work in ...

12/20/2012
Cemetery Conservation Workshop in Natchez, Mississippi
Instructor Jason Church cleans a marble headstone
 

On December 1, 2012 NCPTT’s materials conservator Jason Church taught a one day cemetery conservation workshop in Natchez, Mississippi. This workshop was the first of a series being developed by the  Historic Natchez Foundation with the  Copiah-Lincoln Community College.  Copiah-Lincoln Community College hopes this series of preservation related workshops will build interest in a developing ...

12/20/2012
Safe Hoist Operation for Lifting Stone
Using a tripod hoist to reset a marble headstone
 

Safe Hoist Operation for Lifting Stone When a stone needs to be removed or set back in place, lifting is required.  A hoist or crane can be used whenever the stone cannot be moved manually.  So, it is important to keep safety in mind when operating a crane or hoist.  You should be familiar with the ...

12/18/2012
Calculating the Weight of Stone
Crosses at Oakdale Cemetery Wilimington, NC
 

Calculating the Weight of Stone This is a guide intended to help anyone get the approximate weight of a stone without having to use a scale.  The only required tools are a calculator, tape measure, pencil, and paper.  Using the above tools allows the user to safely calculate weight prior to lifting stone with a hoist ...

12/18/2012
Designing the Lidar Mission for Industrial Heritage: Cooperation Across the Fields
Dice
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Designing the LiDAR Mission for Industrial Heritage: Cooperation Across the Fields Heritage managers and digital documentarians may observe the same subject, but observe it through a contrasting set of filters. The focus of this paper is to ...

12/11/2012
Fountain Fundamentals, an Ever Evolving Conservation Collaboration
Bloch Building
 

The National Center for Preservation Technology and Training in partnership with The Nelson-Atkins Museum of Art and conservator Martin Burke announces a two day conference on the conservation of fountains. The Nelson-Atkins Museum of Art in Kansas City, Missouri will host the conference which includes presented papers, poster presentations, and discussion sessions on July 10-11, ...

11/27/2012
Guide for Use of Wood Preservatives in Historic Structures (2012-10)
2012-10
 

This document provides guidance on wood preservation options in the context of historic preservation. Preserving wooden building materials is critical to historic preservation practitioners. Biodeterioration can be minimized through design, construction practices, maintenance, and, if neces¬sary, by use of wood preservatives. Moisture is the primary cause of biodeterioration, and if exposure to moisture cannot be ...

11/16/2012
Geophysical and Laser Scan Surveys at the Longfellow House – Washington’s Headquarters National Historic Site (2012-06)
2012-06
 

Geophysical and laser scan surveys were conducted at the Longfellow House – Washington’s Headquarters National Historic Site (NHS), Cambridge, Massachusetts in August, 2011. This work was undertaken as part of the Archaeological Survey Technology, Data Integration, and Applications (ASTDA) Workshop. This workshop was funded by the National Center for Preservation Technology Training and supported by the Joukowsky ...

11/16/2012
Petrographic Analysis for Conservation
Chandra Reedy helps students during the 2012 Petrography for Conservation class
 

The National Center for Preservation Technology and Training (NCPTT) and The Center for Historic Architecture and Design (CHAD) in the University of Delaware’s School of Public Policy and Administration are partnering to host a two-day hands-on workshop on the uses of polarized light microscopy for the study of stone and ceramic cultural materials.  The workshop ...

11/15/2012
Why Digital? Its only 1’s and 0’s
Colored Point Cloud of West Beach
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Why DIGITAL? Its only 1’s and 0’s We still seem to be fighting the war over the value of digital information some 30 years after its introduction to the public. Developments in technology have occurred so rapidly that skepticism ...

11/09/2012
Close Range Photogrammetry vs. 3D Scanning for Archaeological Documentation
Simon
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Close Range Photogrammetry vs. 3D Scanning for Archaeological Documentation The proliferation of terrestrial laser scanners on the market over the past few years has been accompanied by a rapid adoption of the technology by archaeologists.  This increased archaeological use ...

11/06/2012
Our History Rests Here: Preservation and Restoration of Historic Cemeteries
DSC04931
 

On September 20-21, 2012 NCPTT’s materials conservator Jason Church taught two cemetery monument conservation workshops as part of the Kentucky Heritage Council annual Historic Preservation Conference. Church’s contribution to the well attended and diverse annual conference was entitled “Our History Rests Here: Preservation and Restoration of Historic Cemeteries, Part 1 and Part 2″. The first day ...

10/31/2012
Cemetery Conservation Workshop in Natchez, Mississippi
Natchez City Cemetery
 

NCPTT, in partnership with the Historic Natchez Foundation and Copiah-Lincoln Community College, will offer a cemetery monument conservation basics workshop December 1, 2012, in Natchez, Mississippi.  The training is targeted to the nonprofessional, such as church sextons, genealogists, cemetery grounds workers, and family members. The workshop registration is $25 per person, this price includes a ...

10/30/2012
Rocket Science and 3D Analyses in the Preservation of Artistic and Historic Works
John Asmus
 

This presentation was presented as the keynote address for the 3D Digital Documentation Summit held July 10-12, 2012, Presidio, San Francisco, CA.   Rocket Science and 3D Analyses in the Preservation of Artistic and Historic Works More than sixty years ago development began on the nuclear-propelled ORION Spaceship destined for a manned mission to the planet Saturn. This ...

10/29/2012
Highlights from the 12th Stone Congress — Part II
 

Here are notes from three presentations I found interesting.  I hope you’ll find them interesting, too. Interior Stone Cleaning at Saint John the Devine: practical and logistical considerations — Claudia Kavenagh While construction on the church was started in the 19th century, it is still not completed.  During construction in 2001, a fire broke out that damaged ...

10/29/2012
NCPTT Research at International Stone Congress
 

NCPTT’s Jason Church and Carol Chin presented research at the International Stone Congress on Wednesday, October 24.  Church presented a comparative cleaning study for fragile marble monuments after pretreatment with hydroxyl conversion treatment.  The purpose of this work was to develop a treatment methodology for the Arsenal and MaComb Monuments found in Congressional Cemetery, Washington, ...

10/24/2012
Monitoring Using Laser Scanning – Case Study of Watts Towers
Gray
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Monitoring Using Laser Scanning – Case Study of Watts Towers This paper will explore the use of laser scanning as a part of a controlled survey to measure movement of buildings and structures over time. In 2011 a ...

10/22/2012
Evolution in Project Workflow – Is High Definition Survey the Missing Link? – Brandon C. Friske
Friske
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Evolution in Project Workflow – Is High Definition Survey the Missing Link? There is a major shift occurring in the preservation and building industry today. It was only 30 years ago that architects and engineers where designing ...

10/18/2012
3D Technology and the H.I. Hunley: Beyond Documentation – Christopher Watters
Watters
 

Since raising the H.L. Hunley submarine (1863) from the seabed in 2000, the project has incorporated 3D technologies including laser scanning, patterned light scanning, Vulcan point system, and computer modeling. Archaeologists developed the use of 3D technologies primarily for site plan development and artifact documentation. As the project progressed, conservators found other applications for the ...

10/18/2012
Two Additional 2012 PTT Grants Awarded
Dugout canoe moved to the Hibulb Cultural Center for Conservation.
 

Two additional grants totaling $50,000 were made to the following recipients. The Tulalip Tribes Hibulb Cultural Center is receiving $25,000 to develop a symposium on the Conservation and Continuation of Native American Monumental Wood Carving. The California Preservation Foundation is receiving $25,000 to advance distance learning through the Preservation Virtual Classroom.

09/19/2012
Color and Spectral Archiving Using Dual-RGB Imaging
Screenshot of “SpectralAnalyzer” software.
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Color and Spectral Archiving Using Dual-RGB Imaging by Roy S. Berns and Jim Coddington Imaging in museums serves multiple end uses from publication to detailed documentation. Commercial RGB digital cameras have, at best, adequate color accuracy , demonstrating ...

07/23/2012
Saving the Lines: Documenting Ships and Small Craft Using Laser Scanning Technology
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Saving the Lines: Documenting Ships and Small Craft Using Laser Scanning Recording the shape of ships is especially challenging as they are typically constructed with compound curves and complex surfaces. Traditional hand-measuring techniques are time-consuming and only ...

07/23/2012
3D Digital Documentation of Cultural Resources in Southern Arizona National Parks
Southern ArizonaNationalParks
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. 3D Digital Documentation of Cultural Resources in Southern Arizona National Parks The National Park Service Southern Arizona (SOAR) group consists of Casa Grande Ruins National Monument, Chiricahua National Monument, Coronado National Memorial, Fort Bowie National Historic Site, ...

07/23/2012
Summer Conservation Scientist for a Day Program
IMG_1471
 

Have you ever wondered what an art conservation scientist does? Have you thought about how science can teach us about an historic object? Come join us this summer and be your own scientific sleuth to learn about the culture of early inhabitants of Natchitoches through the pottery shards they left behind. NCPTT is offering a ...

05/21/2012
2012 Robotics Camp
Picaxe Microbot
 

NCPTT wants to introduce you to the excitement of science and technology through NCPTT’s 2012 Robotics Camp! Get hands-on experience building and programming your own robot. Then have a chance to test your navigational skills against others in the camp. You’ll learn about soldering, programming, electronics, robot assembly, navigation using sensors, and more! NCPTT’s 2012 Robotics ...

05/21/2012
Paradise Gardens; its Past and its Future
JordonPoole
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Paradise Gardens; its Past and its Future Transcript Church:     This is Jordan Poole, the very newly elected director ...

04/20/2012
Iron Fencing Care Workshop in Bloomington, Indiana
End of the Day Group Photo
 

NCPTT, in partnership with Monroe County History Center at Indiana University, conducted a workshop focused on the techniques and knowledge needed to preserve ornamental ironwork in an architectural setting. This workshop begin with an opening lecture session at 6:30 p.m. by NCPTT’s Materials Conservator Jason Church on Friday, October 14th at the History Center in Bloomington, Indiana. ...

04/18/2012
The Strange Procession That Never Moves
Wooldridge Postcard
 

The Wooldridge Monuments are a group of eighteen life-sized sculptures located in Maplewood Cemetery, Mayfield, Kentucky. Listed on the National Register of Historic Places, they commemorate the life and relatives of Henry G. Wooldridge.

04/05/2012
Planning to Stabilize, Document, Conserve and Interpret Howard Finster’s Paradise Garden in Summerville, Georgia
Paradise Gardens
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Planning to Stabilize, Document, Conserve and Interpret Howard Finster’s Paradise Garden in Summerville, Georgia Abstract This presentation will illustrate ...

04/04/2012
The Orange Show Center for Visionary Art
Orange Show
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. The Orange Show Center for Visionary Art Transcript Church:     Alright we’re ready to get started back. Our first ...

04/04/2012
Unicultural Ethnography: Preserving Outsider Art Through the Ethnography of Individual Outsider Artists
Juanita Leonard in her self built church.
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Unicultural Ethnography: Preserving Outsider Art Through the Ethnography of Individual Outsider Artists Abstract Certain aspects of the artistic experience ...

04/04/2012
God’s Architects; Documenting the Materials, Methods, and Self-Taught Builders of the South
Reverend HD Dennis builder of Margaret's Grocery
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. God’s Architects; Documenting the Materials, Methods, and Self-Taught Builders of the South Abstract Scattered about remote back roads and ...

04/04/2012
Taking the Art to the Streets: How the Citizens of Los Angeles Saved Watts Towers
Watts Towers
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Taking the Art to the Streets: How the Citizens of Los Angeles Saved Watts Towers Transcript Church:         ...

04/03/2012
Thin-Section Petrography Workshop a Success
Small Bamiyan Buddha Thin Section
 

Under the microscope sat a thin section of the smaller Bamiyan Buddha from Afghanistan which was destroyed in 2001. As polarizing filters were placed in front of and behind the sample creating cross polarization, grains of large quartz, feldspars, chert, and other components sparkled in vivid color on a dark background. This technique is called ...

04/03/2012
Creating a Conservation Plan for Vollis Simpson’s Whirligigs
Vollis Simpson
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Dennis Montagna Creating a Conservation Plan for Vollis Simpson’s Whirligigs Abstract For the past thirty years, 92-year-old Vollis Simpson has ...

04/03/2012
Re-evaluation of 1984 Preservation Decisions for the African House Murals by Clementine Hunter
Swicklik cleaning the Clemetine Murals in 1984
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Abstract Re-evaluation of 1984 Preservation Decisions for the African House Murals by Clementine Hunter In 1984 as an Associate ...

04/03/2012
The Greatest Show on Earth: the history and conservation of Jefferson Davis McKissack’s Orange Show
Orange Show Sembrat
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. The Greatest Show on Earth:  the history and conservation of Jefferson Davis McKissack’s Orange Show Transcript Cyncar:    Good morning ...

04/03/2012
Simon Rodia’s Towers in Watts (The Watts Towers) Four Decades of Interventions and Still Searching for a Solution
Thermal Image by LACMA
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Simon Rodia’s Towers in Watts (The Watts Towers) Four Decades of Interventions and Still Searching for a ...

04/03/2012
What’s In and What’s Out
James Dixons,  Tory Island East End (above) and Tory Island West End (below).
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Transcript McBride:     Good afternoon ladies and gentlemen.  My name is Patrick McBride and on behalf of myself ...

04/03/2012
Virtual Conservation of Folk and Outsider Art Environments
William Averett “ Happy Villa” (Destroyed), Andrade, CA - 1976
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Virtual Conservation of Folk and Outsider Art Environments Abstract The presentation will address the issue of conserving documents pertaining ...

04/03/2012
A Creative Obsession: Materials and Techniques of the Self-Taught Artist James Castle
James Castle circa 1974. Philadelphia Museum of Art, © James Castle Collection and Archive
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. A Creative Obsession: Materials and Techniques of the Self-Taught Artist James Castle Abstract Identifying the materials of works of ...

04/02/2012
Realms of the Unreal and the Henry Darger Archives
Raw materials form the residence of Henry Darger.
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Realms of the Unreal and the Henry Darger Archives Abstract The American Folk Art Museum maintains the single largest ...

03/30/2012
Magical Mosaics: Preserving Isaiah Zagar’s Philadelphia Art Environment
Philadelphia's Magic Gardens
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Magical Mosaics: Preserving Isaiah Zagar’s Philadelphia Art Environment Abstract One of the nation’s most amazing, yet least known, art ...

03/29/2012
Discriminating Palettes: The Painting Materials of Clementine Hunter and Her Imitator
Barabe studies one of the Toye forgeries
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Discriminating Palettes:   The Painting Materials of Clementine Hunter and Her Imitator Transcript Church:    Next we have Joe Baraby, Senior ...

03/29/2012
FBI Investigation of Clementine Hunter Forgeries by William Toye
Randy Deaton takes a close look at a Toye forgery at the Gallery 2 show
 

United States Attorney Stephanie A. Finley announced that Robert E. Lucky, Jr, 64, of New Orleans, was sentenced today to 25 months in federal prison and was ordered to pay $326,893 in restitution for mail fraud in connection with selling fake paintings attributed to Louisiana artist Clementine Hunter. Lucky was also sentenced to three years’ ...

03/28/2012
John Pojman, LSU Polymer Expert, Visits NCPTT
John Pojman explains frontal polymerization to students and staff at NCPTT.
 

Monday’s meeting with Dr. John Pojman, an LSU professor specializing in polymers, was a great exchange of ideas.  Pojman is a prototypical eccentric professor, who defines himself as a chemist, amateur herpetologist, and self-proclaimed owner of the world’s largest pocket protector collection.  His is a gregarious researcher who can quickly go from a light-hearted story ...

03/21/2012
Clementine Hunter; History of Forgery
Clementine Hunter painting
 

The talk presents a biographical sketch of the folk artist, Clementine Hunter, born in southern Natchitoches Parish in late 1887 and died January 1, 1988. Around 2000 a group of paintings appeared on the market supposedly by Hunter but later found to be painted by Beryl and William Toye. The lecture will include details of the ...

03/20/2012
Reflectance Transformation Imaging Workshop, July 16-19, 2012
A demonstration of the equipment needed for RTI documentation.
 

Cultural Heritage Imaging (C-H-I) is offering a four-day workshop on the use of reflectance transformation imaging (RTI) to document cultural heritage.  The workshop will be held July 16-19, 2012 at the C-H-I offices in San Francisco, California.  The new technique helps create digital representations of artifacts and sites.  The workshop is a combination of lectures, demonstrations ...

03/08/2012
Petrographic Analysis for Conservation
A researcher using thin section petrography for the analysis of a material.
 

NCPTT, in partnership with the University of Delaware, will conduct a two-day workshop focused on a highly successful PTT grant by Chandra Reedy on Thin-Section Petrography of Stone and Ceramic Cultural Materials. The April 2012 workshop is open to 20 conservation professionals and will be held at the research laboratories of the National Conservation Training ...

03/01/2012
3D Digital Documentation Summit
3D Digital Documentation of Mesa Verde by CyArk.
 

July 10-12, 2012 at the Presidio of San Francisco, California NCPTT in conjunction with the Presidio Trust and the Friends of NCPTT will host a three day summit on digital documentation for the preservation of cultural heritage. The program features two days of contributed papers and a poster session, followed by a third day of field ...

03/01/2012
Preservation of Human Dental Surface Micro-Topography with Three-Dimensional Non-Destructive Digital Imaging (2012-01)
2012-01
 

Human skeletal remains from archeological sites are often studied to determine historical information such as sex, age, and health, among other facts.  The information from individuals can be used to better understand a population and the culture of a past people.  With the aid of a Preservation Technology and Training Grant, Dr. Shannon Hodge at ...

02/28/2012
Cemetery Documentation
Cemetery Documentation
 

This webinar will cover the basics needed for Cemetery Documentation. The talk will run one hour of lecture with a following half hour for questions and answers. Topics covered in this talk will include an introduction to documentation surveys and forms followed by an overview of definitions general needed in cemetery documentation. Definitions covered are ...

02/28/2012
Evaluation of Ca(OH)2 Nano-Particle Treatment of Cordage/Basketry (2011-01)
2011-01
 

The major goals of this project involved: laboratory set-up; synthesis of Ca(OH) 2 nano- particles; cordage sample acquisition; development of a research design; preliminary testing of solutions and solvents; mechanical and aging studies; analytical characterization; imaging and data collection; and report preparation. The project has demonstrated that aqueous dispersions of calcium hydroxide nano-particles are not ...

12/31/2011
Development of a Micro-fading Tester with Near-UV Capability (2011-09)
2011-09
 

Paul Whitmore, director of Carnegie Mellon University’s Art Conservation Research Center (ACRC), has developed a portable device that can be used to determine how exposure to visible light and ultraviolet (UV) rays affect the colors on a work of art, providing vital information that can be used to better preserve the artwork.

12/31/2011
Controlling Salt Damage (2011-02)
2011-02
 

Growth of salt crystals within the pores of stone can cause serious damage. Salt may enter with ground water or be created by reaction of the minerals in the stone with atmospheric pollutants. As water evaporates from the pores of the stone, the salt concentration rises and the crystals grow until they approach the pore ...

12/31/2011
Development of Ceramic Reference Materials for Calibration and Quantification of Portable XRF Data (2011-06)
2011-06
 

While archaeologists have had some success identifying who made ceramics and where they made them, these techniques relied on removing a sample and complex instrumentation. The Virginia Department of Historic Resources (VDHR) used portable x-ray fluorescence (XRF) instrumentation as a tool to determine the geographic origin of Native American ceramics.

12/31/2011
Nanotechnology and Materials Testing: Using Nanoparticles to Tag Consolidant to Determine Depth of Penetration (2011-05)
2011-05
 

With a PTT grant funded by NCPTT, a research team including conservators from the New York State Bureau of Historic Sites, scientists with the Physics Department of Union College, Schenectady, New York, and scientists from the nanotechnology industry began experimenting with nanoparticles to advance conservation treatments in the field of historic preservation. This collaboration ...

09/19/2011
Limpieza Básica para Monumentos (2007-01)
Jason Church, Conservador de Objetos, Programa de Investigacion de Materiales
 

Hola, en este video le estaremos enseñando los procedimientos básicos para limpiar lápidas de piedra. Hay dos cosas que se deben de recordar: lo primero es que siempre hay que asegurarse de la seguridad personal y lo segundo es no hacer daño a la lápida como tal.

09/15/2011
NCPTT Seeks Grant Proposals from Preservation Innovators
2012 Preservation Technology and Training Grants
 

We are looking for proposals which develop new technologies or adapt existing technologies to preserve cultural resources. Call for Proposals (Details of the grants program) Optional Pre-Proposal (Due October 1, 2011) Submit Grant Proposal (Due October 17, 2011)

09/01/2011
Preparing Your Collection for a Disaster
800px-FEMA_-_20570_-_Photograph_by_Marvin_Nauman_taken_on_11-16-2005_in_Louisiana
 

Preparing your collection for a disaster could greatly increase what survives. Northeast Document Conservation Center recommends to first prepare an emergency preparedness plan. This will allow your staff to respond quickly before, during and after a disaster with explict instructions that will provide the best practices for preparing and salvaging your collections. ...

08/26/2011
Saving and Preserving Burial Grounds of Enslaved African Americans
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Saving and Preserving Burial Grounds of Enslaved African Americans by Sandra A. Arnold Development of the Burial Database Project of Enslaved African Americans began from independent research conducted by Sandra Arnold (Fordham University) after she discovered the burial site of her ...

08/13/2011
Returning the Forest to Forest Lawn: Tree Planting Strategies for Historic Landscapes
 

This presentation is part of the International Cemetery Preservation Summit, October 8-10, 2014 Niagara Falls, NY. Returning the Forest to Forest Lawn: Tree Planting Strategies for Historic Landscapes by Matthew Quirey Matthew Quirey:  Good afternoon. Thanks for having me. Today, it’s my pleasure to talk about the Forest Lawn landscape renewal plan and returning the forest to ...

08/12/2011
Preservation of Ornamental Iron
Ornamental Iron
 

NCPTT, in partnership with Monroe County History Center at Indiana University, will conduct a workshop focused on the techniques and knowledge needed to preserve ornamental ironwork in an architectural setting, October 7-8, 2011 in Bloomington, Ind..  The class will be split between classroom lectures and in the field hands-on activities. For more information contact Jason ...

08/11/2011
New Study Expands Research for Removing Crude Oil from Historic Brick
 

Since the summer of 2010, NCPTT has been actively researching the removal of crude oil from objects and sites of cultural significance, such as Fort Livingston. This 19th century coastal fort on Grand Terre Island, Louisiana, was badly contaminated by the 2010 Deepwater Horizon oil spill. Our scientists visited the site twice last year to ...

08/08/2011
Protecting Archeological Objects from Crude Oil
NCPTT
 

In the wake of recent oil spills, many in the public sector recognized a need for concise, reliable information to protect cultural heritage from the long-term effects of crude oil. In particular, government officials, archeologists, and preservation professionals wanted to know the risks associated with crude oil contamination on buried and submerged archeological objects and ...

07/21/2011
Best Practice Recommendations for Cleaning Government-Issued Marble Headstones
Jason Church demonstrates the proper technique for cleaning a marble headstone using a biocidal cleaner, water, and a soft bristle brush.
 

In 2004, the Department of Veteran Affairs National Cemetery Administration turned to NCPTT when it wanted advice on chemical cleaners for their marble headstones. This began and partnership and extensive research on the subject of commercially available cleaners for removing biological growth and general soiling from marble headstones. This week, NCPTT’s Mary Striegel reported the results ...

07/21/2011
Cold Storage for Photographic Materials
Cold storage for photographic materials
 

Tuesday, August 2, 2011 at 2:00 pm EDT Theresa Anne Voellinger, Paper/Photograph Conservator, Harpers Ferry Center, National Park Service will join us to discuss the Connecting to Collections Online Community’s Featured Resource for August – the online video series Cold Storage:  A Long-Term Preservation Strategy for Film-Based Photographic Materials. To join these events, go to http://www.connectingtocollections.org/ and visit the meeting ...

07/20/2011
Identifying Museum Insect Pest Damage
Insect damage of a library book
 

Wednesday, July 20, 2011 at 3:00 pm EDT Led by Barbara Cumberland, Conservator, Museum Conservation Services at the Harpers Ferry Center, National Park Service, and Carol DiSalvo, Integrated Pest Management Coordinator at the National Park Service. The following resources are recommended for this webinar: Identifying Museum Insect Pest Damage (PDF) 11 Step Process for Implementing an Integrated Pest ...

07/20/2011
Our Rule of Three: Producing a Video on Statue Conservation
Prescott During
 

Have you ever been to Gettysburg or other battlefield sites and noticed the condition of the outdoor sculptures? Or, closer to home, are there any commemorative markers or metal plaques on your way to work today that are in poor condition? Most National Parks and almost every town square have at least one outdoor ...

07/05/2011
Alexander Calder’s “Hello Girls”; a Wind and Water Driven Non-Interactive Feature by John Hirx
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Alexander Calder’s “Hello Girls”; a Wind and Water Driven Non-Interactive Feature by John Hirx Abstract Alexander Calder was commissioned to create “Hello Girls”, a wind and water activated sculpture, for the Los Angeles County Museum of Art (LACMA) when the museum was established ...

06/18/2011
Kansas City Water Quality by David Greene
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Kansas City Water Quality by  David Greene This presentation will provide an overview of federal drinking water regulations, typical municipal water supply chemical/biological characteristics, and premise plumbing (e.g. fountains) issues related to water quality. Speaker Bio David Greene is the Laboratory Manager at the ...

06/06/2011
Toward Better Treatment of Cast-Iron Fountains with Zinc Statues
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Toward Better Treatment of Cast-Iron Fountains with Zinc Statues by Carol Grissom Abstract: The first statue to decorate a publicly financed fountain in the United States was William Rush’s wooden Water Nymph and Bittern, made for Philadelphia’s new water works in 1809.  Fountains ...

06/04/2011
Cultural Heritage Recovery in Haiti (Podcast 31)
DSCF2728
 

Welcome to the Preservation Technology podcast; the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join Jason Church as he speaks with Karen Pavelka, a lecturer in the School of ...

05/03/2011
Conservation Scientist for a Day
Conservation Scientist
 

What will students learn from the “Conservation Scientist for a Day” program? Students will learn about: The role of the conservation scientist, The Scientific Method, Conservation, Cultural heritage, X-ray fluorescence (XRF) theory, The Metric System, Chemical analysis testing, and Safety in the laboratory setting.

03/25/2011
Ornamental Iron Workshop 2011
Conservator Rose Daly primes a treated cast iron fence during the 2009 Ornamental Iron Workshop.
 

May 18-19, 2011 Savannah, GA The purpose of this event is to educate people about the differences in cast and wrought iron and preservation/restoration methods for each type of material. This workshop will be useful to anyone who cares for historic buildings (that contain railings, balconies, or other decorative elements), parks, or cemeteries. $399 Registration $299 Student Registration – ...

02/15/2011
National Science Foundation Grant Enables Scientists to Advance Stone Treatments
brucefu
 

The National Science Foundation has awarded a $360,000 three-year grant for preservation research to the University of Southern Mississippi, Hybrid Plastics, and the National Center for Preservation Technology and Training (NCPTT). The research team is developing new stone strengtheners, also called consolidants, based on the latest advances in polymer science. “This National Science Foundation grant ...

02/02/2011
A Better Picture of the Past Using New Technologies
Peacock 3
 

Can chemistry lead to better understanding of archeological objects?  Ask Dr. Evan Peacock from the Cobb Institute of Archaeology at Mississippi State University.  With funding from NCPTT, Peacock is using an analytical technique called Laser Ablation-inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) analyzing spoons made of freshwater mussel shell.  Spoons like these were used to smooth pottery ...

02/01/2011
Field Report: Fort Livingston, Grand Terre Island
Fort Livingston, Grand Terre Island
 

NCPTT made a second visit to Fort Livingston, Grand Terre Island, in September, 2010. Eight surface washing agents were tested for their effectiveness in removing weathered crude oil from the brick masonry at the fort. A few of the products tested were somewhat effective, removing approximately 50% to 70% of the surface soiling from the ...

01/14/2011
Cemetery Monument Conservation Basics: Sand Hill, TX
NCPTT
 

Location: Sand Hill, TX Date: April 2011 Partner: Stephen F. Austin State University Description: This cemetery basics workshop is targeted to the parks seasonal interpretation staff, regular yearly staff, and family members of the cemeteries located at the park. This one to two day workshop will focus on cemetery documentation, condition assessment, master plans, simple resetting techniques, and ...

01/12/2011
Cemetery Conservation Techniques: St. Augustine, FL
DSC_5129
 

Location: Saint Augustine, FL Date: April 1-2, 2011 Partner: University of Florida This multiday cemetery workshop will focus on a variety of cemetery materials and conservation treatments. This includes proper cleaning and consolidation techniques for stone grave markers, lime washing of build features, and simple repair techniques for stone. A small class of 15-20 will be comprised ...

01/12/2011
Cemetery Monument Conservation: Cherokee, NC
NCPTT
 

This Cemetery Monument Conservation Basics workshop is a partnership between Great Smokey Mountains National Park and NCPTT. It is targeted to the parks seasonal interpretation staff, regular yearly staff, and family members of the cemeteries located at the park. This one to two day workshop will focus on cemetery documentation, condition assessment, master plans, simple ...

01/12/2011
Cemetery Monument Conservation Basics: Peoria, IL
NCPTT
 

NCPTT has partnered with the Illinois Historic Preservation Agency and Springdale Cemetery Association to offer Cemetery Monument Conservation Basics in Peoria, IL. This cemetery basics workshop is targeted to the nonprofessional, such as church sextons, genealogists, cemetery grounds workers, and family members. This one day workshop will focus on cemetery documentation, condition assessment, master ...

01/12/2011
Ft. Livingston, Grand Terre Island Field Report (2010-03)
2010-03
 

NCPTT staff visited Fort Livingston, Grand Terre Island, on June 16, 2010 to evaluate the condition of the structure and the amount of oil contamination; to conduct field tests on cleaning methods; and to collect oil, water, and oil-contaminated sand samples for further testing in the laboratory. The amount of oil and area of contamination ...

12/31/2010
University Concludes 100-year Concrete Study
NCPTT
 

The University of Wisconsin at Madison recently wrapped-up a research project begun in 1910 to examine the long-term performance of concrete samples stored under different conditions. When Owen Withey, a professor of mechanics at the university, began his study at the turn of the last century there had been little scientific research of concrete and ...

12/20/2010
NCPTT, Southern Miss and Hybrid Plastics Collaborate to Study Stone Strengtheners (Podcast 26)
Derek Patton discusses the POSS system with NCPTT Scientists during a visit to USM
 

In this edition of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Derek Patton, Assistant Professor in the School of Polymers and High Performance Materials at The University of Southern Mississippi. NCPTT is partnering with USM and Hybrid Plastics on a National Science Foundation grant to advance the science of ...

12/07/2010
2010 Annual Report
2010 Budget Chart
 

The NCPTT 2010 Annual Report outlines research, training, and grant activities undertaken by the Center during FY2010. NCPTT advances the application of science and technology to historic preservation. Working in the fields of archeology, architecture, landscape architecture and materials conservation, the Center accomplishes its mission through training, education, research, technology transfer and partnerships.

10/20/2010
Creation of a Web-accessible Database of the Comparative Plant Fiber Collection (2010-02)
2010-02
 

This database of micrographs of textile fibers acquired through the use of multiple microscopic techniques contains 145 collections with 1404 individual files, and requires 23GB of storage space. Each file contains a high resolution image with text fields that delineate image location and size, image collection information, microscopy technique and details of the features presented ...

10/06/2010
New National Science Foundation Grant Enables NCPTT to Advance Stone Treatments
NCPTT's Materials Conservator Jason Church treats a marble monument with a chemical consolident.
 

Researchers at NCPTT are discovering new treatments for historic stone conservation with the help of Hybrid Plastics, the University of Southern Mississippi, and a grant from the National Science Foundation.  The team is developing new stone strengtheners, also called consolidants, based on the latest advances in polymer science.  The National Science Foundation is awarding the ...

09/23/2010
Video: The Historic Building Material Bousillage
A traditional bousillage building
 

In this video we will discuss a traditional Louisiana construction method called Bousillage. Bousillage is a Louisiana French term for walls made of mud. The origins of the word comes from Bous which means mud. Louisiana’s bousillage techniques appear s to be a blending of French and Native American traditions. Both cultures employed similar mud walled ...

09/02/2010
NDSU studies protective coatings for outdoor bronze sculpture
Corroded bronze bust.
 

Some of the world’s most famous art will never appear in a gallery. Indeed, outdoor bronze sculpture may spend decades or centuries outdoors, exposed to pollution and extreme weather conditions. Researchers at North Dakota State University (NDSU) used a grant from NCPTT to study ways to test and develop a coating system to resist corrosion ...

09/02/2010
Protecting Historic Structures from Oil Contamination
Oil Contamination
 

This document is written as general guidance for property owners, as well as state and federal officials, for the care of historic structures facing the impact of oil contamination from releases of crude oil in marine and terrestrial environments, whether from oil tankers, drilling rigs, wells, offshore platforms, or pipeline breaks and failures.

07/30/2010
NCPTT works for long-term protection of cultural resources in the Gulf
Jason Church collects samples of oil-saturated sand northwest of the outer wall of Fort Livingston, Grand Terre Island.  The dark patches on the sand in the foreground are areas where "mousse" that washed up on the beach melted into the sand.  The structure's walls are tabby, faced with brick.  Note the high tide line indicated by the dark oil staining on the brick and the tabby in the background.
 

The effects of oil contamination on cultural resources will continue to be a challenge to the Gulf Coast region for years to come. NCPTT is meeting this challenge with technical research support for state and federal land managers, and for the public.

07/26/2010
Folk Art Conservation and the Rock Garden in Chandigarh, India (Podcast 22)
Nek Chand's Rock Garden, bangle ladies, Chandigarh, India.
 

In this edition of the podcast, we join NCPTT’s Jason Church as he speaks with Tony Rajer. He is an Art Conservator with the Nek Chand Foundation and a conservation professor at the University of Wisconsin. Today they will discuss Rajer’s interest in folk art and his work with the Rock Garden in Chandigarh, India.

07/21/2010
Materials Research Program Begins Rust Converter Study
Photographing rust study samples before treatment begins
 

For conservators working with iron, rust is always a consideration.  In museum collections or in our homes, we easily encounter rusty fences, grates, car parts, artwork and collectibles.  Iron oxide (commonly called rust) results from the natural oxidation of iron by oxygen.  Some metals, like bronze, can form a protective layer of corrosion products called ...

06/22/2010
Preservation of Iron and Steel in Bridges and Metal Structures (Podcast 17)
Vern Mesler welds a wrought iron during the workshop.
 

In this episode of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Vern Mesler, adjunct professor at Lansing Community College. They will discuss the “Preservation of Iron and Steel and Bridges and Other Metal Structures Workshop,” which was funded by a grant from the National Center.

04/13/2010
Researchers examine methods to control salt damage in cultural resources
scherer1
 

Salt damage is one of the leading causes of deterioration of monuments and historical buildings. While this problem is widespread, proper prevention methods are not understood, leading to remedies that sometimes cause additional harm. Princeton University is tackling the problem by using strategies to better understand the salt/water/pore interface. University researchers are using a PTT ...

03/30/2010
NCPTT Hosts School Groups for Heritage Education Lessons
Avoyelles student looks at the temper of a Woodland period Caddo pottery sherd.
 

In an ongoing commitment to promote heritage education in historic preservation, the Materials Research Program at NCPTT recently hosted two school groups. On Friday, March 12, thirty-four Avoyelles Public Charter School high school juniors took part in the “Conservation Scientist for a Day” lesson. For this the students studied French colonial and Native American pottery using ...

03/25/2010
Lifting and Hoisting Stone Grave Markers Video
Catholic Cemetery in Natchitoches, La
 

Many fallen or sunken grave markers are too large or weigh too much to be reset by hand. For these markers a mechanical hoisting or lifting system must be used. There are many types of lifting systems in use from very complex cranes and truck mounted hydraulic booms to less complex gantries and tripod hoists. ...

03/21/2010
Looking through Corrosion: A Workshop On Eddy Current Analysis for Cultural Heritage
Suzanne Graham, a graduate student in the M.A. in Heritage Resources Program at Northwestern State University, tries out a prototype Eddy Current Analyzer on a 18th century iron cross.
 

Have you ever wondered what kind of metal that object was made of?  Or perhaps you needed to read the inscription of a coin that was corroded.  Maybe you have a laboratory with a limited research budget and need to study a collection of firearms.  NCPTT is researching new applications for an old technology: Eddy ...

02/09/2010
NCPTT 2010 Call for Interns
Evaluating an historic structure
 

NCPTT has internships available in the fields of historic architecture, materials conservation, and historic landscapes. Positions include 10-week historic architecture and materials conservation summer internships and a 6-month historic landscapes internship.

01/15/2010
3-D laser scanning opens new doors for preservation technology research
Bryan Bond demonstrates the scanner on a frog figurine.
 

The Konica Minolta Vivid 9i 3-D LASER scanner has been used to create better computer graphics in movies such as Bolt and The Golden Compass. It was also used to make online museums, such as the Virtual Hampson Museum, with 3-D images of every artifact. Now NCPTT will expand its use into the preservation field.

01/07/2010
Sourcing Shell and Shell-Tempered Artifacts using Laser Ablation (2009-02)
2009-02
 

This project involved developing a new method for using the chemical content of freshwater mussel shell as a means of sourcing prehistoric, shell-tempered pottery and shell artifacts to their places of origin. By extension, this means that prehistoric trade and exchange networks can be mapped out. Because each waterway is chemically different to some extent, ...

12/31/2009
Evaluation of Conservation and Preservation Practices in a Southwest Pottery Collection (2009-04)
2009-04
 

A variety of materials and methods have been used to preserve ceramic vessels. Many have proven successful, while others are damaging. Monitoring and evaluation of past treatments is a documented research priority in the conservation field. The Arizona State Museum (ASM) has examined, recorded and analyzed the performance of past treatments on ...

12/31/2009
Hands-on Preservation and Conservation: NCPTT Materials Research Program 2009 Annual Report
Carol Chin and Curtis Desselles use NCPTT's low cost eddy current analyzer to study an obscured inscription on an iron cross.
 

The best preservation decisions are based on first-hand knowledge.  NCPTT is creating new technology-based information for people active in hands-on preservation and conservation. NCPTT contributed its first-hand knowledge to the Department of Defense in 2009.  Recently, the DOD wished to establish a series of standard rehabilitation treatments for better management of its built heritage.  Initial drafts ...

11/30/2009
PTT Grant is funding database for research of fibers
Jakes and Crawford
 

Ohio State University is looking to provide ethnobotanists, archeologists and analysts with a new way to identify fibers found in prehistoric artifacts. Through a grant from NCPTT, the university is creating an online database containing digital images, explanatory text and terminology that is designed to give researchers important information about artifacts.

10/01/2009
Live Webcast – Nationwide Cemetery Preservation Summit
NCPTT
 

A live webcast of the Nationwide Cemetery Preservation Summit was streamed on October 19. 2009. View the webcast.

10/01/2009
Chemistry and Materials Research at the Interface between Science and Art: Thoughts from an NSF Workshop co-sponsored by the Andrew W. Mellon Foundation and Northwestern University
NCPTT
 

Chemistry and Materials Research at the Interface between Science and Art: Thoughts from an NSF Workshop co-sponsored by the Andrew W. Mellon Foundation and Northwestern University In July, I was invited to participate in a National Science Foundation workshop entitled “Chemistry and Materials Research at the Interface between Science and Art.”  I had the good fortune ...

09/04/2009
Using Eddy Current Technology in Conservation Science (Podcast 8)
Curtis Desselles and Houren Zhu build and test eddy current analyzers.
 

In this episode, Jason Church speaks with Curtis Deselles, an intern with the Materials Research program at NCPTT, discusses the use of eddy currents and eddy current technology in conservation science. Mr. Deselles has built several eddy current analyzers, custom software, and presented on this topic at a non-destructive conference in St. Louis. NCPTT has been ...

08/12/2009
PTTGrant project to create user-powered online database for historic landscapes
What's out there
 

The Cultural Landscape Foundation (TCLF) is creating a new, interactive way of preserving historic landscapes. Slated for launch in October, the PTTGrant-funded “What’s Out There” project will raise awareness about the wide range and diversity of historic landscape design through a collaborative Wikipedia-style website. The site will enable users to directly contribute information, resulting in ...

08/03/2009
DOD Standard Treatments
NCPTT
 

NCPTT has completed the rewriting and editing of 12 Standard Treatments for the DOD. Sixteen additional treatments are under review, and DOD comments will be incorporated as they are received. This effort is directed at improving the technical content of the draft DOD treatment standards and the stewardship of DOD cultural resources.

07/27/2009
NSF Workshop
NCPTT
 

NCPTT’s Mary Striegel participated in a National Science Foundation/Andrew Mellon Foundation workshop held to examine and improve the state of science used to study, preserve and protect cultural patrimony. Forty participants met to identify areas where new research in basic science can provide a foundation for significant improvements in understanding the way art and artifacts were ...

07/21/2009
Using Lasers to Remove Graffiti from Rock Art and Rock Imagery (Podcast 7)
Claire Dean uses laser to clean rock images.
 

Today we are joining NCPTT’s Jason Church as he speaks with Claire Dean of Dean Associates of Conservation Services about using lasers to remove graffiti from rock art. Rock art or rock imagery is the common term for paintings and carvings on rock and in North America that is mostly associated with native communities. Download Episode ...

07/16/2009
The Aftershock of Economics Meets Conservation Online
Mirror Mirror Mirror by Orin Optiglot (via Flickr)
 

When the use of the internet for communication is exploding exponentially, the economics of California and Stanford University has brought an end to the Conservation Online DistList and Archives (CoOL).

06/15/2009
Nationwide Cemetery Preservation Summit Abstracts and Video
Figure 1. This early 1900s image shows the historic character of Old North Cemetery. Initially focused on functionality, the character was enhanced over time as impressive tree plantings created a scenic, park‐like landscape. Courtesy City of Hartford Archives.
 

Schedule and abstracts for the Nationwide Cemetery Preservation Summit from October 19-21, 2009 in Nashville, Tennessee. Register before September 11, 2009 for $299 ($399 thereafter). Key sessions are expected to include Archeology, Mapping and Documentation, Landscapes, Engineering Challenges, Issues in National Cemeteries, and Materials Conservation.

04/20/2009
Shaving Cream: Genealogist’s Friend or Cemetery Conservator’s Foe?
Biological growth flourishes on the remains of shaving cream used to read the epitaph.
 

We do not advocate the use of shaving cream for investigating inscriptions on stone. The shaving cream has natural emollients for softening the skin. These emollients have oils and moisture holding agents that can have detrimental effects on the stone.

04/09/2009
NCPTT visits Hybrid Plastics
Hybrid Plastics' president Joe Lichtenhan explains how POSS is prepared.
 

NCPTT and Hybrid Plastics are partnering to make and use POSS modified polymers in preservation applications. Researchers and preservationists discussed the potential of developing new nanotechnologies for application to preservation problems.

04/07/2009
Deadline: Call for Presentations for the Nationwide Cemetery Preservation Summit
Myles Bland and Debbie Smith apply a fill patch to a repaired stone. Photo: Jason Church.
 

NCPTT is soliciting oral and poster presentations that focus on research and innovation in cemetery conservation and preservation for the NCPTT’s Nationwide Cemetery Preservation Summit to be held in Nashville, Tenn., October 19-21, 2009.

03/31/2009
Essentials for Cemetery Monument Care TelNPS
Metairie Cemetery
 

This course emphasizes sound maintenance techniques for cemetery and commemorative monuments that are sustainable, cyclic, non-invasive, and do no harm. The course will address documentation, maintenance plans, stone deterioration, cleaning, and resetting headstones.

03/09/2009
Basics for Iron Fencing Care TelNPS
Conservator Bianca Garcia applies a finish coat during a fence restoration.
 

This course emphasizes sound maintenance technqiues for historic iron fences. These resources could be located around cemetery markers, commemorative monuments, or architectural features.

03/09/2009
Mary Striegel to Keynote at American Society for Non-Destructive Testing
NCPTT
 

Mary Striegel will be the keynote speaker at the annual meeting of the American Society for Non-destructive Testing, to be held March 17 in St. Louis, Mo.

03/03/2009
New Life for Native Artifacts
Roane (left) and Nancy Odegaard (right), conservator and head of preservation at the Arizona State Museum, assess an artifact in the cleaning study.
 

Recent research reveals bacteria may be the biggest ally in the fight to preserve ancient artifacts from erosion and deterioration.

03/01/2009
Eddy Current Metal Testing in Conservation Workshop
NCPTT
 

The topic is the use of eddy currents for identification of metals (ferrous and non-ferrous), measuring the thickness of corrosion, and the recovery of serial numbers and/or images beneath corrosion.

02/13/2009
Non-destructive testing to be the topic of session meeting, keynote address
Nondestructive testing
 

NCPTT is organizing a session on non-destructive testing in historic preservation as part of the American Society for Non-destructive Testing’s meeting on March 17, 2009 in St. Louis.

02/10/2009
Dynamics of Participatory Conservation: The Kamehameha I Sculpture Project
Statue of King Kamehameha I
 

The conservation of the King Kamehameha I sculpture in North Kohola, Hawai`I demonstrates a dynamic of public involvement in conservation.

02/09/2009
The Other White “Paint”
A door jamb at Cane River Creole National Historical Park is coated with limewash, a traditional structural protectant.
 

Limewash is enjoying renewed interest as a protectant for historic structures, thanks in part to research undertaken by NCPTT and its partners.

02/05/2009
Carol Chin joins NCPTT research staff
Dr. Carol Chin examines a treated limestone sample.
 

Carol Chin has joined NCPTT as a joint faculty researcher in the National Center’s Materials Research Program. The position is held in partnership with Northwestern State University of Louisiana

01/28/2009
NCPTT completes Historic Congressional Cemetery Monuments Study
NCPTT Conservator Jason Church looks at deposits of gypsum crusts on the Macomb monument.
 

NCPTT researchers, in partnership with masonry experts from NPS Historic Preservation Training Center, recently completed a study to develop treatments for use on marble monuments in Historic Congressional Cemetery.

01/20/2009
Documentation of Timbisha Shoshone Traditional Cultural Sites Using Video and GIS Technology
NCPTT Logo
 

The grant allowed for documentation of traditional language, foods, music and the cultural landscapes associated with the Timbisha Shoshone people in their aboriginal territories.

01/01/2009
Development of a Rapid Indicator of Biodeterioration of Historic Stone (2008-09)
2008-09
 

2006 NCPTT Grant to Harvard University, “Development of a Rapid Indicator of Biodeterioration of Historic Stone.” Biodeterioration plays an important role in the degradation of stone in historic buildings, monuments, and archeological sites.

12/31/2008
Limewash Video: Application and Preparation of Limewash (2008-07)
2008-07
 

This six minute video explains how to prepare and apply limewash.

12/31/2008
NCPTT Awarded Second Consecutive Fuller Award from APTI
Association of Preservation Technology International (APTI)
 

NCPTT was awarded the Oliver Torrey Fuller Award at the Association of Preservation Technology International (APTI) conference in October.

11/13/2008
NCPTT holds sixth Cemetery Monument Conservation Workshop
dsc_17601
 

NCPTT’s held its sixth annual Cemetery Monument Conservation workshop October 7-9, 2008, in New London, Connecticut. Twenty-six registrants participated in a variety of hands-on sessions.

11/13/2008
Wooden Artifacts in Cemeteries: A Reference Manual
Wooden grave marker in Virginia City, NV.
 

NCPTT has received the PTT grant product “Wooden Artifacts in Cemeteries: A Reference Manual,” submitted by the Historic Preservation Commission; the City of Aspen, Colorado, and Anthony & Associates.

11/13/2008
Partnership studies environmentally friendly cleaner on historic monument
Misting heads apply water to the top of the Macomb Monument
 

NCPTT and the NPS Historic Preservation Training Center (HPTC) are partnering with the Veterans Administration’s National Cemetery Administration to complete cleaning treatment studies on the U.S. Arsenal Monument in Historic Congressional Cemetery. Based on research and training by NCPTT’s Jason Church, HPTC staff will undertake intermittent misting cleaning of the Arsenal Monument during November. This ...

11/13/2008
Comparative Study of Commercially Available Cleaners for Use on Federally-Issued Headstones
Jason Church positions the head of the Minolta colorimeter for measurements on a headstone in Alexandria National Cemetery. Photo by Mary Striegel
 

This report provides information and progress on the comparative study of commercially available cleaners for federally issued headstones.

10/20/2008
Digital Image Analysis of Petrographic Thin Sections in Conservation Research (2004-01)
2004-01
 

Traditional thin-section analysis techniques such as tedious manual point counting are time consuming and require numerous measures. The use of visual estimation charts produce results of questionable accuracy.

09/22/2008
Protective Glazing Study (1996-06)
1996-06
 

In this study, Inspired Partnerships, a non-profit organization in Chicago, investigated the virtues and liabilities of various protective glazing installations over stained glass.

09/22/2008
Historic Resource Surveys and the Internet (1999-10)
1999-10
 

This manual teaches communities and neighborhoods how to complete their own historic resource surveys and share that information quickly.

09/22/2008
Glass and Stained Glass Conservation (1998-28)
1998-28
 

This video covers a workshop on the conservation and restoration of stained glass.

09/22/2008
Identification of Unmarked Graves
identification-of-unmarked-graves
 

A critical and long-standing challenge in the preservation field has been finding unmarked graves.

09/16/2008
New Custom Polymers Technology
NCPTT
 

NCPTT’s materials research program hosted representatives from Hybrid Plastics. The company specializes in new resin and plastics based on a new chemical technology called POSS.

09/10/2008
Development of a Handheld Metal Tester Using Eddy Current Technology
NCPTT
 

NCPTT’s Curtis Deselles, a graduate student in the Masters of Heritage Resources program at Northwestern State University of Louisiana, is developing a handheld metal tester using eddy current technology.

08/01/2008
New England Cemetery Monument Conservation Workshop
New London, CT
 

NCPTT and the City of New London will deliver the sixth annual New England Cemetery Monument Conservation workshop on October 7-9, 2008, in New London, Conn.

08/01/2008
Removal of Graffiti from Brick Masonry Buildings
NCPTT
 

NCPTT is developing better strategies for the removal of graffiti from brick masonry buildings.

08/01/2008
Interactions Between Air Pollution and Limestone
NCPTT
 

Molly McGath, NCPTT summer intern, is studying interactions between air pollution and limestone treated with commonly used chemical stone strengtheners.

08/01/2008
$165,415 Released for the National Center for Preservation Technology and Training Grants Program
NCPTT
 

More than $165,000 will fund research to protect America’s historic legacy as part of the National Center for Preservation Technology & Training’s PTT Grants program.

07/09/2008
Vacancy Announcement: Preservation Scientist
NCPTT
 

The National Center for Preservation Technology and Training (NCPTT) and Northwestern State University seek a Ph.D. analytical, organic, or physical chemist to fill a joint-faculty position for two years, with an option for annual renewal pending availability of funds.

07/01/2008
Anna Johnson Presents NCPTT Research at Intel International Science and Engineering Fair
NCPTT
 

Anna Johnson, a high-school junior at the Louisiana School for Math, Science and the Arts, took NCPTT research to the Intel International Science and Engineering Fair, Atlanta, Ga. on May 11-16.

06/17/2008
Stace Miller Awarded B.S. in Chemistry and Math
Stace Miller doing microscopy on marble samples
 

Stace Miller, a longtime undergraduate intern at NCPTT, received a B.S. in chemistry and an B.S. in Math from Northwestern State University of Louisiana on May 9.

06/10/2008
Interim Report on Commercially Available Cleaners for use on Federally issued Headstones
Jason Church positions the head of the Minolta colorimeter for measurements on a headstone in Alexandria National Cemetery. Photo by Mary Striegel
 

NCPTT and the Department of Veteran Affairs, National Cemetery Administration has released the interim report entitled, Comparative Study of Commercially Available Cleaners for use on Federally-issued Headstones.

06/09/2008
Portable Laser for Graffiti Removal
NCPTT
 

The Los Angeles County Museum of Art recently provided a portable laser system to NCPTT as part of the National Center’s laser research facility.

06/03/2008
Limewash: Handmade and Modern Brick
NCPTT
 

This report is an executive summary of testing undertaken by NCPTT in partnership with the Cane River Creole National Historical Park (CARI) and Quality Finish.

05/24/2008
Materials Research Hosts Four Summer Interns
NCPTT
 

NCPTT will host four interns in its materials research program this summer: Molly McGath, Catherine Arseneaux, Candida D’Avanzo, and Paige Isaacs.

05/23/2008
Durability of Traditional and Modified Limewashes
Figure 2.
 

The study tested a variety of limewash recipes for possible use on historic structures located in the Cane River Creole National Historical Park, located in central Louisiana.

05/20/2008
NCPTT Research Presented at AIC
NCPTT
 

Jason Church and Stace Miller presented results of NCPTT research at the annual meeting of the American Institute for Conservation in Denver Colorado, April 21-24.

05/09/2008
New England Cemetery Monument Conservation Workshop: October 7-9, 2008
NCPTT
 

$695 per participant. Topics Will Include: Condition Assessments, Conservation Ethics, Protection, Cleaning, Stone Loss Repairs, Bases and Resetting, Adhesion & Reinforced Repair, Consolidation.

04/23/2008
Striegel Presents ‘Protecting and Preserving Louisiana’s Historic Legacy’
NCPTT
 

Mary Striegel of NCPTT presented at the 2008 Louisiana Library Association Annual Meeting, held March 4-6 in Shreveport.

04/22/2008
Miller and Kurshid Receive Awards from ACS
NCPTT
 

NCPTT interns Stace Miller and Bilal Khurshid were acknowledged for their research and professional presentations at NSU’s Annual College of Science and Technology banquet.

04/10/2008
NCPTT Staff Presents Research at NSU
NCPTT
 

Six NCPTT staff members presented at Northwestern State University of Louisiana’s (NSU) annual research day on March 20.

04/09/2008
Cultural Resources Diversity Intern to Develop Oral Traditions Project
NCPTT
 

NCPTT has been granted a cultural diversity intern for summer 2008 through the NPS Cultural Resources Diversity Internship Program.

03/28/2008
NCPTT Installs FTIR Spectrometric Microscope to Analyze Cultural Materials
NCPTT
 

A new Perkin Elmer Fourier Transform Infra-Red (FTIR) spectrometric microscope was recently installed in the NCPTT research labs.

02/18/2008
NCPTT Provides Archeology Technical Assistance to Louisiana State Exhibit Museum
NCPTT
 

NCPTT recently provided technical assistance to the Louisiana State Exhibit Museum in Shreveport regarding concerns about the condition of several archeological copper objects associated with the Gahagan burials that were excavated in the 1930s.

02/04/2008
NCPTT Hosts American Chemical Society Regional Chapter Meeting
NCPTT
 

NCPTT hosted the American Chemical Society Regional Chapter Meeting on Nov. 27 in Lee H. Nelson Hall. The meeting included a banquet dinner and guest lecture by Dr. Mary Robert Garrett on synthesis of enantioenriched beta-ketoesters.

01/18/2008
Development of a Rapid Indicator of Biodeterioration of Historic Stone
NCPTT
 

Development of a Rapid Indicator of Biodeterioration of Historic Stone. Ralph Mitchell, principal investigator, and Christopher J. McNamara, of Harvard School of Engineering and Applied Sciences worked to identify microbial species for possible use as a microbiological indicator for identification of stone deterioration.

01/11/2008
2007 Cemetery Monument Conservation Photos
Myles Bland and Debbie Smith apply a fill patch to a repaired stone. Photo: Jason Church.
 

NCPTT held the Southeast Cemetery Monument Conservation Workshop at St. Michaels Cemetery, Pensacola, Florida on October 23-25, 2007.

01/08/2008
Advances in Digital Radioscopy for Use in Historic Preservation (2007-05)
2007-05
 

In the interest of saving as much historic fabric as possible and not altering or scarring historic materials as a result of investigative probes, architectural conservators look to nondestructive testing methods for the evaluation and identification of materials, conditions and alterations made to structures over time.

12/31/2007
Comparing Mass Drying and Sterilization Protocols for Water-Damaged Books (2008-04)
2008-04
 

Recovery specialists need to have a clear sense of the pros and cons of existing treatment options before they can respond effectively.

12/31/2007
Swelling Mechanism in Clay-Bearing Sandstones (2007-09)
2007-09
 

Swelling clays in stone can generate damaging stresses during a wetting or a drying cycle, which leads to deterioration of building stones such as Portland Brownstone.

12/31/2007
Iron Fence Repair (2007-03)
Iron Fence Repair (2007-03)
 

Materials Conservator Jason Church demonstrates how to properly repair an iron fence.

12/31/2007
Wooden Artifacts in Cemeteries: A Reference Manual (2007-10)
2007-10
 

This project is about saving historic wooden artifacts in cemeteries. Cemeteries are important repositories of local and national history, valued not only for the stories they tell, but also for their emotional and civic connections.

12/31/2007
An Evaluation of Supercritical Drying and PEG/Freeze Drying of Waterlogged Archaeological Wood (2007-04)
2007-04
 

This study evaluates the physical effects of drying waterlogged archaeological wood using supercritical carbon dioxide as compared to air drying and the polyethlene gylcol (PEG)/freeze drying method.

12/22/2007
Jackson, Botting, and Striegel Awarded Oliver Torrey Fuller Award
NCPTT
 

NCPTT’s Sarah Jackson along with colleagues Mary Striegel and Tye Botting were awarded the Oliver Torrey Fuller Award for their article, “Durability of Traditional and Modified Limewash.”

12/10/2007
Video Preservation Website: Migration of Historic Video Tape to Digital Video Files (2007-13)
Video Preservation Website
 

This thorough website was built and designed as a clearinghouse of information on videotape preservation.

11/08/2007
Caleb Johnson Joins NCPTT Materials Research Program as a Graduate Assistant
Caleb Johnson
 

Caleb Johnson recently joined NCPTT’s materials research program as a graduate assistant.

11/01/2007
Scaling and Deterioration of Granite Monuments
Jason Church presents "Effects of Hard Water on Granite Tombstones in the Southwest United States" at the RATS session o fthe AIC Conference in Denver, Colo.
 

NCPTT’s Jason Church presented the results of recent research on the scaling and deterioration of granite monuments.

09/29/2007
NSU/NCPTT Laser Research Facility Training
Consultant Meg Abraham explains the flash bulb assembly to Stace Miller, Dr. Weijia Zhu and Dr. Catherine Situma  (Photo: Jason Church)
 

NCPTT worked with consultant Margaret Abraham to complete the NSU/NCPTT joint laser research facility and undertake safety and operational training.

09/01/2007
NCPTT and Department of Veterans Affairs Continue Headstone Study
NCPTT
 

The Department of Veteran Affairs agreed to fund NCPTT’s two-year continuation of the comparative study of commercially available cleaners for use on federally issued headstones.

08/29/2007
Lichens: The Challenge for Rock Art Conservation
NCPTT
 

Debra Elaine Dandridge, Lichens: The Challenge for Rock Art Conservation, a Ph.D. dissertation submitted to the Office of Graduate Studies, Texas A&M University.

08/13/2007
Dr. Catherine Situma Joined Materials Research Program at NCPTT
Catherine Situma
 

Dr. Catherine Situma joined the NCPTT materials research program in the NCPTT/NSU joint faculty position.

08/06/2007
2007 Southeast Cemetery Monument Conservation Workshop
NCPTT
 

$695 per person. October 23-25, 2007.

07/10/2007
Congressional Cemetery Comprehensive Condition Assessment Conducted
Irving Slavid and John Zito clamping marker
 

Mary Striegel and Jason Church of NCPTT conducted a comprehensive condition assessment and documentation of the Macomb and the U.S. Arsenal Monuments in Washington, DC’s, historic Congressional Cemetery.

07/09/2007
Thin-Section Petrography of Cultural Materials Comprehensive Resource and Training
NCPTT
 

PTT Grant MT-2210-03-NC-05, Thin-Section Petrography of Cultural Materials: Comprehensive Resource and Training, Publication, Dr. Chandra Reedy, University of Delaware, Museum Studies Program.

06/07/2007
2007 Cemetery Monument Conservation Basics Workshop: San Antonio
NCPTT
 

San Antonio, TX · June 16, 2007. 9:00AM to 12:00 PM.

05/18/2007
Seeing is Believing Thermography Aids Historic Preservation
NCPTT
 

This work has leveraged additional funds through the purchase of an Infrared Camera by the University.

05/14/2007
Drying Waterlogged Archeological Wood Artifacts Complete
NCPTT
 

Eric Shindelholz, formerly The Mariners’ Museum, successfully concluded his grant research and submitted his final deliverables regarding his project to investigate the use of emerging technologies for drying waterlogged archeological wood artifacts.

05/10/2007
VA Cemetery Cleaning Study Progress Report Completed
NCPTT
 

NCPTT’s Mary Striegel and Jason Church completed a progress report, “Comparative Study of Commercially Available Cleaners for Use on Federally-Issued Headstones” for the Department of Veteran Affairs National Cemetery Administration.

05/09/2007
Cleaning a Stone Grave Marker (2007-01)
cmc-cleaning
 

Materials Conservator Jason Church demonstrates how to properly clean a stone grave marker.

04/19/2007
Links
NCPTT
 

Educators may find the following resources useful in teaching heritage education in the classroom.

04/17/2007
Preservation at Antietam
Mary Striegel
 

Mary Striegel and Jason Church conducted visits to the Antietam National Battlefield and the Harper’s Ferry Conservation Center immediately after the TELNPS course.

03/26/2007
Cenotaphs Preservation at Congressional Cemetery
NCPTT
 

On Feb. 1, NCPTT offered technical advice to the Historic Preservation Training Center about the cleaning and repair of 165 cenotaphs located in Congressional Cemetery in Washington, D.C.

03/23/2007
Limewash Research in APT Bulletin
NCPTT
 

A report on NCPTT’s research, entitled “Durability of Traditional and Modified Limewashes,” by Sarah M. Jackson and Mary F. Striegel, has been accepted by the APT Bulletin for publication in its Summer 2007 issue.

03/19/2007
Advising HPTC on Cleaning Cenotaphs
Dr. Striegel consults with HPTC
 

The work, which is funded by the National Cemetery Administration, began in Oct. 2006 and is expected to continue into FY 2008.

03/12/2007
Conservation Consultation at Oakland Cemetery
Jason Church at Oakland Cemetery
 

The cemetery, which is listed on the National Register of Historic Places, was officially opened 1847 and its fence and walls were added in 1905.

03/09/2007
Essentials in Cemetery Monument Care
cmc-2007-tel
 

Materials Research Chief Mary Striegel and Materials Conservator Jason Church conduct a TEL NPS course “Essentials in Cemetery Monument Care” broadcast on January 30, 2007.

01/30/2007
Removal of Arsenic and Mercury Contamination in Museums using a Natural Environmentally Benign Chemical (2006-02)
2006-02
 

Some natural science specimens and ethnographic artifacts in museums were historically treated with arsenic and mercury salts. This has created an environmental concern for museum workers and the public who may be exposed to these toxins. In addition, museums are frequently being asked to return sacred objects under the Native American Graves Protection and Repatriation ...

12/31/2006
AIC Board Meeting
NCPTT
 

Mary Striegel represented NCPTT at the American Institute for Conservation (AIC) board meeting, held Nov. 2-4, 2006.

12/29/2006
APTI Conference
NCPTT
 

NCPTT materials research staff Dr. Tye Botting and Sarah Jackson presented research at the annual APTI conference on Sept. 15, 2006, in Atlanta.

11/29/2006
Air Pollution Research Featured in NPCA Publication
Turning Point
 

National Parks at a Turning Point focuses on air pollution effects in the National Parks and highlights what the National Park Service is doing about it.

09/11/2006
Laser Facility to Clean Historic Materials
MRP Stace Miller cleans graffiti from a marble sample using the Nd YAG laser (Mary Striegel)
 

NCPTT is partnering with NSU to set up a lab to research lasers as a method for safely cleaning historic materials.

09/04/2006
Harriette Merrifield Forbes Award
NCPTT
 

NCPTT was awarded the Harriette Merrifield Forbes Award for its Cemetery Preservation Initiative.

07/24/2006
Metals Conservation Summer Institute
Jason Church
 

NCPTT materials conservator Jason Church was selected from applicants across the United States to participate in the 2006 Metals Conservation Summer Institute.

07/10/2006
Scale on Granite Headstones
Caitlin O'Grady
 

NCPTT graduate intern Caitlin O’Grady has begun a study to examine scale that has been widely found on granite headstones.

07/03/2006
Limewash Study Completed
NCPTT
 

Results are available on the durability of traditional and modified limewashes tested by NCPTT.

06/19/2006
Cemetery Biological Growth Study Phase II Begins
Biological Growth and Commerical Cleaners
 

NCPTT is moving forward with the second phase of a two-year study to evaluate the effectiveness of commercial chemical cleaners for the removal of biological growth and dirt from federally issued headstones.

06/05/2006
Wet Recovery Workshops
Wet Recovery Workshop
 

NCPTT worked in conjunction with the American Institute for Conservation to produce the workshop series, “After the Storm: Recovery of Wet Collections,” which was held in March.

04/17/2006
Cemetery Preservation Training Expanded
Cemetery Monument Training
 

NCPTT is expanding its training in Cemetery Monument Conservation to three levels in 2006: Basic, Introductory, and Advanced.

04/10/2006
Water Transport Characteristics of Masonry Restoration Mortars (2004-26)
2004-26
 

The focus of this project was to investigate test methods for determining water vapor transmission (WVT) rates in mortar and to assign appropriate WVT rates for specific hydraulic and non-hydraulic restoration mortars.

12/31/2004
Control of Subterranean Termite Populations at San Cristobal and El Morro, San Juan National Historic Site (2003-01)
2003-01
 

This publication studies three monitoring systems and efforts to eliminate termites at San Cristobal and El Morro of the San Juan National Historical Site in Puerto Rico.

12/31/2003
Protection of Metallic Monuments from Biodeterioration (2003-04)
2003-04
 

In 2003, NCPTT supported research that studied biodeterioration on metallic monuments. Ralph Mitchell, Professor at Harvard University’s School of Engineering and Applied Sciences, employed electrochemical impedence spectroscopy to analyze the susceptibility of monument coatings to degradation by indigenous microflora activity.

12/31/2003
Development and Implementation of the Internet Accessible Infrared and Raman Users Group (IRUG) Spectral Database (2003-03)
2003-03
 

In 2003, the Infrared and Raman Users Group received NCPTT support to develop and implement an online collaborative database and bibliography of high quality infrared reference spectra. Currently, the database contains over 1250 spectra of oils, waxes, natural and synthetic resins, dyes, pigments, proteins, gums, and minerals.

12/31/2003
Control of Formosan Subterranean Termite Infestations Using Baits Containing an Insect Growth Regulator (2002-21)
2002-21
 

Baits containing an insect growth regulator, hexaflumuron, were used in the historic Presbytere and the Creole House of the Cabildo, in the French Quarter of New Orleans, Louisiana, to control infestations of the Formosan subterranean termite, Coptotermes Formosanus Shiraki.

12/31/2002
Development and Testing of Organic Coatings for the Preservation of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion – Year 3 (2002-18)
2002-18
 

In 2002, researchers from North Dakota State University received funding from the NCPTT to study protective coatings for outdoor bronze sculpture and ornamentation. Previous research had shown that the most protective coatings tend to be impervious to conventional solvent removal techniques and that standard mechanical removal methods damage bronzes and their patinas. This ...

12/31/2002
Improved Sol-Gel Consolidants for Stone (2002-24)
2002-24
 

The purpose of this project was to develop improved consolidants for restoration of stone damaged by weathering. Conventional consolidants are organic polymers or silica gels, which are simple materials that do not permit matching of a range of properties of the stone. Later improvement of the suspension procedure resulted in consolidants that are much more stable ...

12/31/2002
New Termite Baiting Technologies for the Preservation of Cultural Resources: Results of Field Trials in the National Park System (2002-09)
2002-09
 

Termites are a significant structural pest in the United States, costing the public nearly $1.5 billion in damage each year.

12/31/2002
Standard Practice for Determining the Components of Historic Cementitious Materials (2002-20)
2002-20
 

This report presents a review of the literature followed by recommendations based on best practices for the analysis of historic cement-based materials. The report is geared towards the practicing analyst.

12/31/2002
The Effects of Peroxide Decontamination Reagents on the Chemical and Physical Properties of Cultural Materials (2002-22)
2002-22
 

Because of the scale of contamination, gaseous fumigation with chlorine dioxide was proposed as the method of decontamination for the Senate building.

12/31/2002
Development and Testing of Organic Coatings for the Protection of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion — Year 1 (2001-09)
2001-09
 

Phase 1 of this project used electrochemical characterization methods to evaluate coatings’ corrosion protective performance under conditions that directly emulated exposure to polluted atmospheres.

12/31/2001
Development and Testing of Organic Coatings for the Protection of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion — Year 2 (2001-08)
3661074695_ef101eee64_b
 

In 2001, North Dakota State University presented conclusions from the second year of a three year NCPTT funded project on outdoor bronze protective coatings. Coatings investigated include: a fluorocopolymer blended with various acrylics, conductive polymers, BTA pre-treatments, and a very fine titanium dioxide.

12/31/2001
The Role of Microorganisms in the Deterioration of Atmospheric Pollutants of Stone Used in Historic Buildings and Monuments (2001-01)
2001-01
 

The objectives of this grant were to determine the responses of the microflora to contamination of historic limestone materials with atmospheric pollutants. We also studied the effects of these interactions on the deterioration of the materials.

12/31/2001
Examination of Gilded Bronze using Nondestructive Eddy Current Techniques (2001-10)
2001-10
 

Eddy current testing methods were used to characterize model gilding layers on bronzes and to make measurements on gilded bronze objects in the Freer Gallery of Art.

12/31/2001
Conservation and Art Materials Dictionary (2000-07)
2000-07
 

Knowledge of material properties, reactivity and history can be crucial to conservation treatment success and safety.

12/31/2000
Vertical Gradients of Pollutant Concentrations and Deposition Fluxes on a Tall Limestone Building (2000-16)
Sampling Sites at the Cathedral of Learning
 

The role of air pollutants in the soiling of a limestone building was investigated by measuring pollutant airborne concentrations and deposition at different heights at the Cathedral of Learning in Pittsburgh, Pennsylvania.

12/31/2000
Research into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase III (2000-08)
2000-08
 

The ultimate goal of this three-phase research project was to develop new coating strategies through an increase in understanding of how coatings for outdoor bronze sculpture and ornamentation work and fail. The immediate objective of Phases II and III of the project was to determine the weathering performance of five medium to high performance coating ...

12/31/2000
Elimination of Subterranean Termite Populations from the Statue of Liberty National Monument Using a Bait Matrix Containing an Insect Growth Regulator, Hexaflumuron (1999-11)
1999-11
 

Infestation by the eastern subterranean termite, Reticulitermes flavipes (Kollar), was found throughout the two ground floors of the pedestal of the Statue of Liberty National Monument.

12/31/1999
Preservation 101: An Internet Course on Paper Conservation (1999-30)
1999-30
 

Preservation 101 is an online course that will help you learn about the basics of preservation in the context of small and moderately-sized library or archival collections. This course was produced as one component of a grant from the Institute of Museum and Library Services awarded to the Northeast Document Conservation Center (NEDCC). The grant supported ...

12/31/1999
Research into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase II (1999-23)
1999-23
 

This research addresses the continuing need for new coating strategies to protect outdoor bronzes from the effects of polluted environments.

12/31/1999
Nondestructive Method for Hardness Evaluation of Mortars (1999-02)
1999-02
 

The objective of this study was to develop a test method to measure the hardness of masonry mortars with a pendulum hammer.

12/31/1999
Directory of Analytical and Materials Testing Services for Historic Preservation (1998-06)
1998-06
 

There are only a handful of laboratories specialized in, and dedicated to, the study and analysis of cultural property.

12/31/1998
Description and Analysis of NAPAP Briquette Surface Chemistry Files (1998-30)
1998-30
 

NAPAP researchers exposed limestone and marble briquettes to weathering for months to years at several different sites. They sampled the briquettes and analyzed multiple layers for anion content.

12/31/1998
Glass & Stained Glass Conservation Workshop (1998-29)
Glass & Stained Glass Conservation Workshop - Document Cover
 

In the summer of 1998, the Gerald R. Ford Conservation Center in Omaha, Nebraska hosted a seminar focusing on the restoration and conservation of three-dimensional and stained glass objects. Participants included conservators, professionals, and preservationists from all across the Midwest. During the five-day seminar, the Center provided lectures, educational materials and instruction, and hands-on learning ...

12/31/1998
Review of the Literature on the Topic of Acidic Deposition on Stone (1998-09)
1998-09
 

It is extremely difficult to determine how much of the deterioration observed on stones is due to “acid rain” since its action is not limited to one mechanism. Rather, it results from the interaction of various mechanisms, many of which also occur in natural weathering.

12/31/1998
Effect of Water on Lower Pecos River Rock Paintings in Texas (1998-22)
Pecos Rock Art
 

In 1998, NCPTT partially funded a research project that involved an investigation of rock paintings in the Lower Pecos River area of Texas.  Rock Art Research, the journal of the Australian Rock Art Research Association (AURA) and the International Federation of Rock Art Organizations (IFRAO), communicated results which were published by Elmo J. Mawk and ...

12/31/1998
Physical and Chemical Process Of Soiling and Washoff at the Cathedral Of Learning (1998-11)
1998-11
 

Sensitive building materials such as calcareous stone are subject to accelerated deterioration by several agents. These may be physical processes such as freeze-thaw cycles, chemical processes such as reaction with sulfur dioxide gas, or biological processes such as attack by microorganisms.

12/31/1998
Analyzing the Effect of Diethylaminoethanol, an Indoor Air Pollutant, on Traditional Easel Paintings, II (1998-17)
1998-17
 

The analyses reported here indicate that the IUAM paintings have not been damaged by reaction with DEAE.

12/31/1998
Analyzing the Effect of Diethylaminoethanol, an Indoor Air Pollutant, on Traditional Easel Paintings, I (1998-16)
1998-16
 

The CCI work is being carried out in two phases, with Phase 1 to establish appropriate analytical procedures for determining the presence and effects of DEAE on paintings, and Phase 2 to analyze the effects of DEAE and conservation treatments on DEAE contaminated paintings.

12/31/1998
Plasma extraction and AMS 14C dating of rock paintings (1997-14)
1997-14
 

We developed a plasma-chemical technique to remove carbon from rock paintings. This extraction is followed by accelerator mass spectrometric analysis of the 14C to yield direct estimates of the ages of rock paintings. We have demonstrated use of the technique on charcoal as well as iron and manganese pigmented paintings. Unfortunately, there are no rock paintings made ...

12/31/1997
Research Into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase I (1997-03)
1997-03
 

The conservation community has expressed general dissatisfaction and frustration in numerous forums over current protective coatings used in the preservation of outdoor bronzes.

12/31/1997
Review of the State of the Art of Laser Cleaning in Conservation (1997-01)
1997-01
 

Considerable interest, as well as concern, exists within the profession of art and artifacts Conservation regarding the potential improvements which may be brought about by the introduction of laser-based methods of cleaning.

12/31/1997
Testing the Energy Performance of Historic Windows in a Cold Climate (1997-16)
 

A study was undertaken to determine the feasibility of renovating and upgrading an original condition window to the extent that its thermal performance would be equivalent to a window using replacement sash or window inserts.

12/31/1997
Methodology Report for a Multimedia Approach to Training Staff in Simple Book Repair (1997-26)
1997-26
 

Simple book repair was defined as those repairs meeting the following criteria: the repair could be completed in a relatively short period of time, required a relatively low level of conservation skill and experience, and could be accomplished with available tools and supplies.

12/31/1997
Deterioration and Preservation of Porous Stone Royal Presidio Chapel, Monterey, California (1996-04)
1996-04
 

Visual inspection of the Chapel indicated that lateral movements, meteoric and ground water, and soluble salts are the main causes of deterioration of the Chapel’s facade and walls.

12/31/1996
Report for NCPTT on Funding Priorities in Materials Conservation (1996-07)
1996-07
 

The AIC polled its membership in May 1996 via a mail-survey to provide an updated and refined list of the most critical needs for research and training in the field of materials conservation.

12/31/1996
Testing the Energy Performance of Wood Windows in Cold Climates: A Report to the State of Vermont Division for Historic Preservation, Agency of Commerce and Community (1996-08)
1996-08
 

During rehabilitation of historic buildings, the question of how to treat the windows is inevitably raised. Within the decision-making process for deciding to replace or renovate an existing window, energy consideration should not be the primary criteria, but should not be ignored.

12/31/1996
Vertical Gradients of Pollutant Concentrations and Deposition Fluxes at the Cathedral of Learning (1996-09)
1996-09
 

Numerous studies have shown that air pollutants can cause deterioration of sensitive materials. This problem is particularly important for buildings and monuments, where materials are chosen for structural support as well as for their aesthetic value.

12/31/1996
Evaluation Of NAPAP Aerometric Data (1996-21)
1996-21
 

The National Acid Precipitation Assessment Program (NAPAP) started in the early 1980s and has continued more or less to the present. At least parts of the program and resulting data have been inherited by the Materials Research Program of the recently established National Center for Preservation Technology and Training (NCPTT) of the National Park Service.

12/31/1996
A Simple Book Repair Manual (1995-02)
Screenshot of Web Resource
 

The web version of the Simple Book Repair Manual was created by members of Preservation Services, Dartmouth College Library.

12/31/1995
Influence of Atmospheric Pollutants on Soiling of a Limestone Building Surface (1995-06)
1995-06
 

Air pollution has been responsible for increasing the rate of deterioration of many historically and culturally valuable monuments.

12/31/1995

NameDate
Historic Preservation Program at Mississippi College (Podcast 51)
SAM_0643
 

Download this episode as an mp3 or Subscribe via iTunes Historic Preservation Program at Mississippi College (Podcast 51) Ammons: Welcome to the preservation technology podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Services’ National Center for Preservation Technology and Training. ...

05/28/2014
FBI and Art Crime (Podcast 50)
Randy Deaton takes a close look at a Toye forgery at the Gallery 2 show
 

Download this episode as an mp3 or Subscribe via iTunes  FBI and Art Crime (Podcast 50) Ammons: Welcome to the Preservation Technology Podcast – the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology & Training. Today ...

05/07/2014
Texas Wildfires and Bastrop State Park
Damage Fehr July 2012
 

Download this episode as an mp3 or Subscribe via iTunes Learning From the Texas Wildfires: Bastrop State Park and Beyond (Podcast 45) Kevin: Welcome to the Preservation Technology Podcast – the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center ...

08/19/2013
John Asmus on Laser Cleaning “Have Laser Will Travel” (Podcast 42)
John Asmus
 

Download this episode as an mp3 or Subscribe via iTunes Ammons:     Welcome to the Preservation Technology Podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join NCPTT’s Jason ...

03/22/2013
KeckCAVES, Immersive 3D Visualization System for Cultural Sites (Podcast 41)
KeckCAVES 3D Visual
 

In this episode, we join NCPTT’s Jason Church as he speaks with Marshall Millet, owner of MMars 4-D. Today they are talking about Millet’s work with U.C. Davis and the KeckCAVES visualization facility.

02/15/2013
Thin Section Petrography for Conservation (Podcast 40)
Chandra Reedy helps students during the 2012 Petrography for Conservation class
 

Today we join NCPTT’s Mary Striegel as she speaks with Chandra Reedy. Reedy serves as Director of the Laboratory for Analysis of Cultural Materials in the Center for Historic Architecture and Design at the University of Delaware.  Today we are talking to Chandra about the importance of thin section petrography for conservation.

01/15/2013
Cultural Heritage Recovery in Haiti (Podcast 31)
DSCF2728
 

Welcome to the Preservation Technology podcast; the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join Jason Church as he speaks with Karen Pavelka, a lecturer in the School of ...

05/03/2011
NCPTT, Southern Miss and Hybrid Plastics Collaborate to Study Stone Strengtheners (Podcast 26)
Derek Patton discusses the POSS system with NCPTT Scientists during a visit to USM
 

In this edition of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Derek Patton, Assistant Professor in the School of Polymers and High Performance Materials at The University of Southern Mississippi. NCPTT is partnering with USM and Hybrid Plastics on a National Science Foundation grant to advance the science of ...

12/07/2010
Folk Art Conservation and the Rock Garden in Chandigarh, India (Podcast 22)
Nek Chand's Rock Garden, bangle ladies, Chandigarh, India.
 

In this edition of the podcast, we join NCPTT’s Jason Church as he speaks with Tony Rajer. He is an Art Conservator with the Nek Chand Foundation and a conservation professor at the University of Wisconsin. Today they will discuss Rajer’s interest in folk art and his work with the Rock Garden in Chandigarh, India.

07/21/2010
Preservation of Iron and Steel in Bridges and Metal Structures (Podcast 17)
Vern Mesler welds a wrought iron during the workshop.
 

In this episode of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Vern Mesler, adjunct professor at Lansing Community College. They will discuss the “Preservation of Iron and Steel and Bridges and Other Metal Structures Workshop,” which was funded by a grant from the National Center.

04/13/2010
Using Eddy Current Technology in Conservation Science (Podcast 8)
Curtis Desselles and Houren Zhu build and test eddy current analyzers.
 

In this episode, Jason Church speaks with Curtis Deselles, an intern with the Materials Research program at NCPTT, discusses the use of eddy currents and eddy current technology in conservation science. Mr. Deselles has built several eddy current analyzers, custom software, and presented on this topic at a non-destructive conference in St. Louis. NCPTT has been ...

08/12/2009
Using Lasers to Remove Graffiti from Rock Art and Rock Imagery (Podcast 7)
Claire Dean uses laser to clean rock images.
 

Today we are joining NCPTT’s Jason Church as he speaks with Claire Dean of Dean Associates of Conservation Services about using lasers to remove graffiti from rock art. Rock art or rock imagery is the common term for paintings and carvings on rock and in North America that is mostly associated with native communities. Download Episode ...

07/16/2009

NameDate
The Challenges of Treating Delaminating Slate Headstones: New Treatments with New Materials
Slates in various states of delamination.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Challenges of Treating Delaminating Slate Headstones: New Treatments with New Materials by Irving Slavid Irving Slavid:  I see they’ve brought the break out, the danishes, so I won’t be long. I do hands-on restoration among other things and I’m going ...

12/10/2014
Confederates in the Cemetery: Federal Benefits & Stewardship
National Cemetery Confederate headstone:   Fort Smith, AR
 

This presentation is part of the International Cemetery Preservation Summit, October 8-10, 2014 Niagara Falls, NY. Confederates in the Cemetery: Federal Benefits & Stewardship by Elizabeth Heavrin and Sara Amy Leach Elizabeth Heavrin: The war department established the first national cemetery during and immediately after the Civil War to provide final honorable resting places for soldiers ...

12/08/2014
Nationwide Monument Conservation at National Cemeteries: Planning, Management, and Treatment Implementation
Bronze Plaques (Keokuk, IA)
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Nationwide Monument Conservation at National Cemeteries: Planning, Management, and Treatment Implementation by Sara Johnson Sara Johnson: Going to talk a little bit about a contract that my company has with the National Cemetery Administration for the preservation of a number of ...

12/03/2014
Conserving the Nation’s Gravesite: Treatment of the Tomb of the Unknowns at Arlington National Cemetery
Final Results
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Conserving the Nation’s Gravesite: Treatment of the Tomb of the Unknowns at Arlington National Cemetery by Debora Rodrigues and Amy Hollis Amy Hollis: I’m going to talk a little bit about a job that I lived for a couple years, which ...

11/24/2014
Reimagining August Bloedner’s 32nd Indiana Infantry Monument (1862)
Original (left) and successor(right) Monument.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Reimagining August Bloedner’s 32nd Indiana Infantry Monument (1862) by Sara Amy Leach Sara Amy Leach:  The most fun I have at work is collecting postcards, cemeteries off of eBay and garage sales.  Good afternoon, this presentation is essentially phase tow of ...

11/19/2014
Photogrammetric Documentation of Weathered and Damaged Headstones at the Cataraqui Cemetery,Kingston Ontario
Absalom Day
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Photogrammetric Documentation of Weathered and Damaged Headstones at the Cataraqui Cemetery,Kingston Ontario by George Bevan and Alexander Gabov George Bevan:  Today for my collaborators in this project. Ian Longo, one of my undergraduate students, who’s worked extensively in the Cataraqui Cemetery ...

11/17/2014
Fragile Grounds: Mapping South Louisiana’s Cemeteries
Holy Family, Cocodrie
All Saints Day
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Fragile Grounds: Mapping South Louisiana’s Cemeteries by Jessica H. Schexnayder and Mary H. Manhein  Jessica: Let me give you a little bit of background about this before we start this presentation.  This actually started out as a student project.  I was ...

11/05/2014
Handcrafted Gravemarkers of Julius “Jesse” Thomas
Variations in Symbol
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Handcrafted Gravemarkers of Julius “Jesse” Thomas  by Anne Shelton   Anne:  Thanks to Stephanie and Gordon I am so pleased to follow their presentation and it was terrific. It was really terrific and I was so pleased to see some really similar ...

11/03/2014
Made from My Own Hand: An Introduction to Concrete Grave Markers
Preservatrion Issues: Before and After
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Made from My Own Hand: An Introduction to Concrete Grave Markers by  Gordon Bond and Stephanie M. Hoagland Stephanie Hoagland: Good morning. Yesterday Jonathan Appell showed us some concrete that you never want to see in a cemetery, but today we’re ...

10/29/2014
In Small Things Remembered: The William Peters Reeves Grave Memorial at Kenyon College
William Peter Reeves Grave Site
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. In Small Things Remembered: The William Peters Reeves Grave Memorial at Kenyon College by Dennis Montagna Dennis: Thanks. Thanks, Jason. David, I think that with all that gnawing, we’ve done some studies and determined that that’s why squirrels don’t get into ...

10/27/2014
Equipment for Xeroradiography Center at the University of Arizona (2014-06)
2014-06
 

The Laboratory for Cultural materials in the Department of Materials Science and engineering, led by Professor Pamela B. Vandiver, has established a facility for non-destructive for imaging of the internal structure of objects and materials using xeroradiography. This electrostatic technique provides edge-enhancement of flaws, macrostructural and textural features to a resolution of 50 microns. Supported ...

10/22/2014
Maintaining Leadworks for Cemetery Monuments and Mausolea
Biological Growth on Failing Joint & New Wool
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Maintaining Leadworks for Cemetery Monuments and Mausolea by Angus “Gus” Fraser and David Gallagher Gus: Mount Auburn Cemetery in Cambridge, Massachusetts. Mount Auburn is a National Historic Landmark. It was the first of a rural or garden cemetery in the United ...

10/22/2014
Red Jacket: Sculpture Conservation Treatment in Forest Lawn Cemetery
Applying wax to Red Jacket
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Red Jacket: Sculpture Conservation Treatment in Forest Lawn Cemetery by Francis Miller Francis Miller: Thanks for having me here today, everyone, and thanks for everyone attending. It’s great getting a group like this together, not only to discuss issues with repairs and ...

10/20/2014
Portland Cement Vs Historic Gravestones
Portland Cement versus Historic Gravestones.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Portland Cement  Vs Historic Gravestones Jonathan Appell:  Apparently, The Pyramid of the Sun in Mexico looked like this before 1910. News story out now … I’ll just go through these images quickly, is this Mr. Menchaca just did a study based ...

10/15/2014
Returning From Oblivion: The Reemergence of a World War II Memorial Sundial
Sun Dial before conservation treatments.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Returning From Oblivion: The Reemergence of a World War II Memorial Sundial by Minxie and James Fannin   James Fannin: I’m going to have to use this for … I’m almost there. Good afternoon. I was going to say late, but we’re ...

10/10/2014
Modern Problems in Historic Cemeteries
St. Philip's churchyard, Charleston, SC
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Modern Problems in Historic Cemeteries by Frances Ford Ford: Hello. My presentation today I have titled Modern Problems in Historic Cemeteries, and you’ll find out why in just a second. My presentation outline will sort of set the scene of this ...

10/06/2014
Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions
Probe Survey
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions by Hugh B. Matternes and Valerie Davis Hugh: Good morning, I’m hoping you’ll learn not only from the results we have here but some of the mistakes we made ...

09/29/2014
Down to Earth: Conservation Decision-Making for Historic Cemeteries
Screen Shot 2014-09-24 at 8.18.22 AM
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Down to Earth: Conservation Decision-Making for Historic Cemeteries by Katharine Untch Katharine: Thank you very much. It’s a pleasure to be here, and I want to especially thank the conference organizers, Jason Church and Mary Striegel, NCPTT, not only for this ...

09/22/2014
The Cycle of Use, Neglect, and Renewal in Historic Family Cemeteries of Niagara, Ontario
Examples of active destruction, families moving from the area, and more passive neglect.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Cycle of Use, Neglect, and Renewal in Historic Family Cemeteries of Niagara, Ontario by Catherine Paterson Paterson: Thank you. I’m very excited to be here and to be speaking with you this morning. The focus of my talk is on ...

09/18/2014
Not Seeing the Cemetery for the Monuments: Understanding the Importance of Preservation Assessments
Gates are easy targets for theft.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Not Seeing the Cemetery for the Monuments: Understanding the Importance of Preservation Assessments by Michael Trinkley and Debi Hacker Michael:  My talk today deals with how, as conservators, we see the cemeteries in which we work. First, a little bit about ...

09/15/2014
They Died in Rome: Preservation of an Active, Historic Cemetery for Foreigners
The cemetery is also know for the "wildlife".
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. They Died in Rome: Preservation of an Active, Historic Cemetery for Foreigners by Nicholas Stanley-Price Jason: I’d really like to thank also, both the people who welcomed us. Francis Miller for helping me pull together the hands-on. The hotel, because we ...

09/10/2014
Restoration of Rockefeller’s Italian Fountain by Ricardo Viera and Michele Boyd
This detail of a merman exemplifies vein erosion of the limestone throughout the fountain.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Restoration of Rockefeller’s Italian Fountain by Ricardo Viera and Michele Boyd Viera: So in 2005 the BCA was commissioned by the Wildlife Conservation Society to assess the conditions, prepare the documents and monitor the repairs and rehabilitation of the Italian Rockefeller Fountain. ...

09/09/2014
Maintenance Maladies-Who is Minding the Fountain?
Pan of Rohallion bronze.
 

This talk is part of the Fountain Fundamentals Conference July 10-11, 2013, Kansas City, MO.

09/02/2014
Water Chemistry Guidelines for Art Fountains by Martin Burke
Picture2
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Water Chemistry Guidelines for Art Fountains by Martin Burke Martin: I am going to try and speak loud enough to get away from the microphone. The one element that has linked all of our presentations over the last two days is water. ...

08/29/2014
Maintenance Programs for Historic Fountains
Littlefield Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Maintenance Programs for Historic Fountains by Fran Gale Striegel: Fran Gale is a lecturer with preservation experience throughout the United States. She’s also the senior lecturer at the University of Texas, School of Architecture, where she teaches Materials Conservation and is the ...

08/20/2014
Bringing the “Fountain of Life” Back to Life – Marble and Bronze Conservation and Sculptural Figure Replication by Ricardo Viera and Michele Boyd
Fountain NY Botanical Gardens
 

This talk is part of the Fountain Fundamentals Conference, held July 10-11, 2013, Kansas City, MO. Bringing the Fountain Back to Life – Marble and Bronze Conservation and Sculptural Figure Replication  by Ricardo Viera and Michele Boyd Striegel: Our next speakers will be talking about Bringing the Fountain Back to Life; Marble and Bronze Conservation and Sculptural ...

06/16/2014
ENGINEERING 281: Renovation of Fountains – Hydraulic Considerations by David Peterson
Fountain at Kingston Oaks.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. ENGINEERING 281: Renovation of Fountains – Hydraulic Considerations by David Peterson David Peterson: Let’s see, can you guys hear me without the microphone? Alright ‘cause I like to stand up here a little closer to you and not hide behind the podium. ...

06/06/2014
Historic Preservation Program at Mississippi College (Podcast 51)
SAM_0643
 

Download this episode as an mp3 or Subscribe via iTunes Historic Preservation Program at Mississippi College (Podcast 51) Ammons: Welcome to the preservation technology podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Services’ National Center for Preservation Technology and Training. ...

05/28/2014
Art and Infrastructure: Restoring the Futuristic Fountain and Reflecting Pool
Olle Holmsten Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Art and Infrastructure: Restoring the Futuristic Fountain and Reflecting Pool by Margot Brunn and Henry Zuehlke Church: Our next speaker is Margot Broom who is a conservator for the Royal Alberta Museum, a provincial museum covering Alberta’s cultural and human history, biological ...

05/19/2014
A Brief Appreciation of Fountains Through History: Changing Functions, Appearances, and Meaning by John Scott
Ai Weiwei fountain at Princeton.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. A Brief Appreciation of Fountains Through History – Changing Functions, Appearances and Meaning – John Scott John Scott: And so, I also hope that after such a really good series of highly technical and practically experienced presentations that we won’t mind a ...

05/12/2014
FBI and Art Crime (Podcast 50)
Randy Deaton takes a close look at a Toye forgery at the Gallery 2 show
 

Download this episode as an mp3 or Subscribe via iTunes  FBI and Art Crime (Podcast 50) Ammons: Welcome to the Preservation Technology Podcast – the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology & Training. Today ...

05/07/2014
Challenges of Maintaining the Fountains of “The City of Fountains” – Kansas City by Jocelyn Ball-Edson
JC Nichols Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Challenges of Maintaining the Fountains of “The City of Fountains” – Kansas City by Jocelyn Ball-Edson Jocelyn Ball-Edson: For today’s talk, I tried to categorize this into four super categories. My basic four categories … and this all overlaps. They’re all interchangeable ...

05/05/2014
Divine Disorder: Folk and Outsider Art Conference 2012
Participants talk with Juanita Leonard at her folk art church in Montgomery, Louisiana
 

The first Divine Disorder Conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana.  This conference  focused on highlighting the under-appreciated decorative works of non-traditional artists. The conservation of these works is vital to preserving the life story of those artists outside the main stream art community. Artists come from ...

04/30/2014
Aquatic Plants for Water Quality Maintenance in Water Features and Fountains by Mary Willeford-Bair, Catherine Dewey, and Walter Zachritz
Aquatic plant boxes in water feature.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Aquatic Plants for Water Quality Maintenance in Water features and Fountains Mary Willeford-Bair : The National Park Service is responsible for the management of a variety of constructed water features across the nation. The National Park Service is held to a high ...

04/28/2014
A Manageable Approach for the Maintenance of Fountain Water
Biogrowth on Noguchi Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. A Manageable Approach for the Maintenance of Fountain Water Striegel: Our next speaker today is Robert Krueger. He’ll be talking about a manageable approach for the maintenance of fountain water. Robert Krueger is an Objects Conservator and proprietor of Cascadia Art Conservation ...

04/23/2014
Masonry Production and Repair: 160 Years of Indexed Bibliography – 1837-1997 (1997-32)
 

The Masonry Production is an indexed bibliography of over 6500 trade and academic references, created through a project, which was conducted by Dr. Debra F. Laefer of the University College Dublin in Dublin Ireland on behalf of TMS for the National Center for Preservation Technology and Training.

04/11/2014
Materials Characterization Utilizing Advanced Spectral Imaging (2011-18)
2011-18
 

The use of noninvasive advanced imaging techniques addresses a critical need to support preservation at all levels – national, state and local. The grant supported the advancement of non-destructive analyses through the integration of aligned spectral techniques to develop a multi-functional system with enhanced capabilities for heritage science. The techniques better informed materials characterization to ...

04/10/2014
Understanding Traditional and Modern Paints and Stains for Exterior Wood (2014-01)
2014-01
 

Building stewards and project managers are often in a quandary when it comes to application of a coating on historic exterior woodwork that has weathered or that has obvious coating performance issues. In 2011, the Association for Preservation Technology International received a grant from the National Center for Preservation Technology and Training to produce a ...

04/10/2014
Use of Hydroxyapatite for enhancing durability in marble
Hydroxyapatite
 

Use of Hydroxyapatite for enhancing durability in marble. This video highlights the recent project by George Scherer’s laboratory at Princeton University on developing state-of-the-art techniques to protect marble monuments and sculptures. This project was funded in part by PTT Grant (MT-2210-12-NC-08). Marble is an elegant material that is used for our most precious sculptures and monuments, ...

03/12/2014
Fountain Conservation California Style
Electric Fountain photo by Lisa Newton
 

This talk is part of the Fountain Fundamentals Conference, held July 10-11, 2013, Kansas City, MO. Fountain Conservation-California Style by Andrea Morse Video Transcription Hello, my name is Andrea Morse, I’m principal conservator of the Sculpture for Conservation Studio in Los Angeles.  Today my presentation will introduce you to the styles, some history and fountain problems that one ...

01/07/2014
Corrosion Resistance Surface Treatment for Marble (2013-07)
2013-07
 

Marble is used in many of our most precious monuments and sculptures, but it deteriorates when exposed to water, owing to its relatively high solubility. Consequently, researchers have sought methods to enhance the durability of marble through the use of environmentally friendly chemical treatments. A particularly promising route, introduced by our research group, is to ...

01/03/2014
Conservation & H‐RTI
H-RTI of an Egyption Stone Figure
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Conservation and H‐RTI at The Metropolitan Museum of Art In the winter of 2010, the Sherman Fairchild Center for Objects Conservation at The Metropolitan Museum of Art hosted a four‐day intensive workshop on Highlight‐based Reflectance Transformation Imaging ...

10/24/2013
Four Light Total Appearance Imaging of Paintings
Rendering using studio lights at 45° from the left and right where the left side has three times more light intensity from a distance of two feet.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Four Light Total Appearance Imaging of Paintings by Roy S. Berns, Tongbo Chen, and Jim Coddington Imaging artwork for documentation and reproduction has a long and rich history. The vast majority of such imaging reduces an illuminated three-dimensional ...

10/23/2013
The Patternmakers Art: Innovation within a Timeless Tradition
Digital model for casting form.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The Patternmakers Art: Innovation within a Timeless Tradition With a few exceptions, architectural metal castings are made using hollow cavity sand and clay molds.  The molds are made by compacting the sand around patterns which look like ...

10/23/2013
Identification of Organic Pigments in Colored Pencils (2000-26)
2000-26
 

Three hundred twelve (312) colored pencils were provided from each of six manufacturers representing the most widely used brands marketed as fin art materials. The pencils were blinded (stripped of identifying commercial information, coded, and sent to the Principal Investigator (PI) by Joy Turner Luke and Rhonda Farfan, who assigned codes to the test pencils: ...

09/22/2013
Disaster Preparedness and Response for Historic Cemeteries
Tree down in cemetery after a windstorm.
 

Thank you for joining us today.  This is the second day of our webinars on disaster preparedness.  Thank you for those who are returning from yesterday and welcome to those that are coming for the first time.  Luckily, most of you know who NCPTT is, having gone to our web site and found out about ...

08/28/2013
Oil & Cultural Resources
DSC_0202FortLivingston
 

Hi, I’m Carol Chin.  I’m a Conservation Scientist at theNational Center for Preservation Technology and Training, and I’ve been doing some work with my colleagues here on the Gulf Oil Spill and conservation of some cultural resources down along the coast.  So today I’m going to be talking about Oil and Cultural Resources – Lessons ...

08/27/2013
Texas Wildfires and Bastrop State Park
Damage Fehr July 2012
 

Download this episode as an mp3 or Subscribe via iTunes Learning From the Texas Wildfires: Bastrop State Park and Beyond (Podcast 45) Kevin: Welcome to the Preservation Technology Podcast – the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center ...

08/19/2013
Assessing the Value of Laser Scan Data
Mess Hall – National Home for Disabled Volunteer Soldiers James H. Quillen Veteran’s Affairs Medical Center
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Documentation to the Secretary of the Interior’s Standards: Assessing the Value of Laser Scan Data The Heritage Documentation Programs consider High-Definition Surveying (HDS) to be a significant tool, one of many it employs in the survey of ...

06/12/2013
Archive of Digital Data for HABS, HAER, and HALS
Jones Barn, Library of Congress Collection.
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Archive of Digital Data for HABS, HAER, and HALS The NPS creates a variety of documents and records, such as inventory and monitoring plans, drawings, photographs, and conservation treatment records, to assist in the planning, management and ...

06/11/2013
Development of an Evaluation Methodology for Cleaning Damage Assessment (1996-32)
1996-32
 

The aim of the project was to determine an appropriate methodology for evaluation of damage induced during cleaning of masonry materials. Of the techniques used for the evaluation of surface changes, measurement of roughness appeared to be most promising.  

04/29/2013
3D Modeling of a Gravestone
Abate
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA 3D Modeling of a Gravestone Exploiting Low Cost Range and Image Based Techniques Inside the Medieval Museum of the city of Bologna are housed a series of gravestones which originally adorned the tombs of the Doctors belonging ...

04/18/2013
A Comparative Study Using LiDAR Digital Scanning and Photogrammetry
Nulty
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA A Comparative Study Using LiDAR Digital Scanning and Photogrammetry Through a National Park Service grant, the Center of Preservation Research (CoPR) at the University of Colorado Denver and the Bureau of Land Management (BLM) have partnered to develop ...

04/18/2013
High Resolution Digital Photogrammetry with Object Surface Texture
Brown
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA High Resolution Digital Photogrammetry with Object Surface Texture Digital Photogrammetry when coupled with multi-image capture can provide high resolution imagery with detailed surface texture. Surface texture can be in greater detail than traditional point cloud laser scanning, and the ...

04/17/2013
Application of Current 3D and Pseudo-3D Imaging for Conservation by Melvin Wachowiak, Senior Conservator E. Keats Webb, Digital Imaging Specialist, Smithsonian Museum Conservation Institute, Washington D.C.
Wachowiak
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Application of Current 3D and Pseudo-3D Imaging for Conservation Melvin Wachowiak, Senior Conservator E. Keats Webb, Digital Imaging Specialist Smithsonian Museum Conservation Institute, Washington D.C. Conservation professionals have been aware of modern methods of 3D digitization, but a comprehensive guide ...

04/03/2013
Restoring the Lion’s Roar: Documenting and Replicating Limestone Structures Through Laser Scanning, 3D Computer Modeling, and CNC Machining
Smith
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Restoring the Lion’s Roar: Documenting and Replicating Limestone Structures Through Laser Scanning, 3D Computer Modeling, and CNC Machining In January 2011, Kreilick Conservation, LLC of Oreland, PA was engaged by Beaver Electric Co. Inc. to conserve the Branch ...

04/01/2013
Study on the Durability of Traditional and Modified Limewash Recipes (2005-03)
2005-03
 

This report summarizes testing undertaken by NCPTT in partnership with the Cane River Creole National Historical Park (CARI) and Quality Finish.  In December 2003 meetings were held to discuss applying limewash to the brick cabins at Magnolia Plantation in hopes of prolonging the life of the structures. We developed a study to determine the durability of traditional and ...

03/27/2013
The Conservation and Preservation of Tabby: A Symposium of Historic Material in the Coastal Southeast (1998-37)
1998-37
 

Forty participants representing a variety of professionals disciplines were invited to Georgia’s Jekyll Island during February 1998, with the common goal of preserving tabby resources. The proceeding from this meeting — individual papers and conclusions and recommendations developed by participants — are represented in this publication. This research was made possible through Grant  MT-2210-7-NC-24 from the National Center ...

03/26/2013
Kamehameha I Sculpture Conservation Treatment Report (2001-12)
2001-12
 

The conservation project was conducted between September 1998 and June 2001. Because of the importance of the monument to north Kohala and widespread concern for its care, a community based project model was employed. the primary aim of the project was to conserve the monument, which was threatened by chloride induced corrosion. Driven by a ...

03/24/2013
John Asmus on Laser Cleaning “Have Laser Will Travel” (Podcast 42)
John Asmus
 

Download this episode as an mp3 or Subscribe via iTunes Ammons:     Welcome to the Preservation Technology Podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join NCPTT’s Jason ...

03/22/2013
Applications of Reflectance Transformation Imaging (RTI) in a Fine Arts Museum: Examination, Documentation, and Beyond
RTI of Attic Pottery
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Applications of Reflectance Transformation Imaging (RTI) in a Fine Arts Museum: Examination, Documentation, and Beyond In 2006, the Worcester Art Museum collaborated with Cultural Heritage Imaging (CHI) to develop reflectance transformation imaging (RTI) as a viable examination ...

03/20/2013
Automated Classification of Surface Texture for Photographic Paper
Messier
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Automated Classification of Surface Texture for Photographic Paper Surface texture is a vital attribute defining the appearance of a photographic print.  Texture impacts tonal range, rendering of detail, reflectance and conveys subtle qualitative information about the aesthetic ...

03/12/2013
KeckCAVES, Immersive 3D Visualization System for Cultural Sites (Podcast 41)
KeckCAVES 3D Visual
 

In this episode, we join NCPTT’s Jason Church as he speaks with Marshall Millet, owner of MMars 4-D. Today they are talking about Millet’s work with U.C. Davis and the KeckCAVES visualization facility.

02/15/2013
Documenting National and World Heritage Sites: the Need to Integrate Digital Documentation and 3D Scanning with Traditional Hand Measuring Techniques
NPS Arrowhead Logo
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Documenting National and World Heritage Sites: the Need to Integrate Digital Documentation and 3D Scanning with Traditional Hand Measuring Techniques For the past fifteen years, digital documentation technology of historic sites and resources has developed into a ...

02/06/2013
3D Scanning of Matisse, the Back I-IV: One Thing After Another
Zycherman
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA 3D Scanning of Matisse, the Back I-IV: One Thing After Another Matisse created Back, his largest sculpture in 1908/1909. Matisse resculpted Back three times over the next twenty-one years (1913, 1917, 1930/31), each time beginning with a ...

01/30/2013
Molecular Characterization and Technical Study of Historic Aircraft Windows and Head Gear using Portable Raman Spectroscopy (2013-01)
2013-01
 

  If you have sat in the window seat, chances are you noticed that the airplane window was made of plastic.  In fact, most aircraft include plastics in their design and have done so from the early years of human flight, yet the technological history of synthetic polymers in aviation is largely unexplored.  This may be ...

01/28/2013
Comparing Digital Photogrammetric Methods for Preservation Documentation
RTI imaging at the Abiquiu front gate.
 

With a 2011 Grant from NCPTT, conservators at Georgia O’Keeffe’s Residences in Abiquiu and Ghost Ranch, New Mexico undertook research comaparing digital photogrammetric methods for preservation documentation of historic homes. They documented their project as they went along at http://okeeffeimagingproject.wordpress.com/. This project studied whether existing, three-dimensional (3D) digital photo imaging technologies could be easily adopted by ...

01/28/2013
Cooperation Creates A Custom Crate: Conservation, Laser Scanning, 3D Milling and Crate Building Work Together
Oldenburg_Poster_Zycherman_OBanion1
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size COOPERATION CREATES A CUSTOM CRATE: Conservation, Laser Scanning, 3D Milling and Crate Building Work Together Claes Oldenburg’s Red Tights with Fragment 9 (1961) is created from single piece of contoured chicken wire, ...

01/28/2013
Recording Structure and Process: HAER 3D Digital Documentation Methods
Recording Structure and Process: HAER 3D Digital Documentation Methods
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Recording Structure and Process: HAER 3D Digital Documentation Methods For many historic engineering works the structure’s historical significance is based on its structural design. This is especially true for bridges. By understanding ...

01/28/2013
Advances in Computational Photograph Techniques for Cultural, Historic, and Natural History Materials
PageLines- petrography-training.jpg
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Advances in Computational Photograph Techniques for Cultural, Historic, and Natural History Materials This talk presents advances in robust new imaging tools from the emerging science known as Computational Photography. The common feature of the computational photography imaging ...

01/25/2013
Laser Scanning America’s Cultural Landscapes
Laser Scanning America's Cultural Landscapes
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Poster full size and detail Laser Scanning America’s Cultural Landscapes The Historic American Landscapes Survey (HALS) Documentation to the Secretary of the Interior Standards, Assessing the Value of Laser Scan Data The Historic American Landscapes Survey (HALS) mission is ...

01/23/2013
Post-Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information
Post‐Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Full Detailed Poster   Post-Processing Workflows: Identifying Hidden Costs in Converting Scan Data to Useable Information This poster aims to demonstrate the unique challenges associated with scanning and documenting OV-103 (Space Shuttle Discovery). In demonstrating the workflow ...

01/23/2013
3D Data Recordation and Immersive Visualization: Considerations for Creative Mitigation Practices
MRM_NCPTT_Final_07-12
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size   3D Data Recordation and Immersive Visualization: Considerations for Creative Mitigation Practices The proposed presentation approaches the potential of 3d data collection and analysis in an immersive 3d visualization system, emphasizing digital format ...

01/23/2013
Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization
Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Integrating Aerial and Ground-based LiDAR in Appalachian Heritage Planning and Visualization The Natural Resource Analysis Center (NRAC) at West Virginia University is building a portfolio of integrated LiDAR (Light Detection And Ranging) ...

01/22/2013
Mind the Gap: the Need to Supplement Laser Scan Data in HABS Documentation Projects
NCPTT HABS Poster_Final
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. See Poster full detail and size Mind the Gap: the Need to Supplement Laser Scan Data in HABS Documentation Projects The HABS poster will discuss the use of laser scanning in relation to the documentation of historic buildings. ...

01/20/2013
Thin Section Petrography for Conservation (Podcast 40)
Chandra Reedy helps students during the 2012 Petrography for Conservation class
 

Today we join NCPTT’s Mary Striegel as she speaks with Chandra Reedy. Reedy serves as Director of the Laboratory for Analysis of Cultural Materials in the Center for Historic Architecture and Design at the University of Delaware.  Today we are talking to Chandra about the importance of thin section petrography for conservation.

01/15/2013
The Patternmaker’s Art: Innovation within a Timeless Tradition
Howell
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The Patternmaker’s Art: Innovation within a Timeless Tradition With a few exceptions, architectural metal castings are made using hollow cavity sand and clay molds.  The molds are made by compacting the sand around patterns which look like ...

01/07/2013
Foamhenge: 3D Modeling and Conservation of a Monumental Sculpture
Swett
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Foamhenge: 3D Modeling and Conservation of a Monumental Sculpture Novel use of technology, 3D digital documentation, model-based engineering, contemporary materials and techniques illustrates the potential that digital documentation and technology has in supporting creative and collaborative problem-solving.  ...

01/07/2013
Best Practices for Digital Documentation
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Best Practices for Digital Documentation by Ekaterini Vlahos and Mike Nulty Through the HABS/HAER/HALS programs the Secretary of the Interior has established Standards and Guidelines for Documentation and acceptability for inclusion in the Heritage Documentation Programs collections ...

01/07/2013
3D Digital Documentation as a Basis for the Finite Element Method in the Restoration of Tullio Lombardo’s Marble Sculpture of Adam
Street
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA The video is currently unavailable for this talk. 3D Digital Documentation as a Basis for the Finite Element Method in the Restoration of Tullio Lombardo’s Marble Sculpture of Adam On October 6th 2002, one of the most important ...

01/06/2013
Designing the Lidar Mission for Industrial Heritage: Cooperation Across the Fields
Dice
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Designing the LiDAR Mission for Industrial Heritage: Cooperation Across the Fields Heritage managers and digital documentarians may observe the same subject, but observe it through a contrasting set of filters. The focus of this paper is to ...

12/11/2012
Guide for Use of Wood Preservatives in Historic Structures (2012-10)
2012-10
 

This document provides guidance on wood preservation options in the context of historic preservation. Preserving wooden building materials is critical to historic preservation practitioners. Biodeterioration can be minimized through design, construction practices, maintenance, and, if neces¬sary, by use of wood preservatives. Moisture is the primary cause of biodeterioration, and if exposure to moisture cannot be ...

11/16/2012
Geophysical and Laser Scan Surveys at the Longfellow House – Washington’s Headquarters National Historic Site (2012-06)
2012-06
 

Geophysical and laser scan surveys were conducted at the Longfellow House – Washington’s Headquarters National Historic Site (NHS), Cambridge, Massachusetts in August, 2011. This work was undertaken as part of the Archaeological Survey Technology, Data Integration, and Applications (ASTDA) Workshop. This workshop was funded by the National Center for Preservation Technology Training and supported by the Joukowsky ...

11/16/2012
Why Digital? Its only 1’s and 0’s
Colored Point Cloud of West Beach
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Why DIGITAL? Its only 1’s and 0’s We still seem to be fighting the war over the value of digital information some 30 years after its introduction to the public. Developments in technology have occurred so rapidly that skepticism ...

11/09/2012
Close Range Photogrammetry vs. 3D Scanning for Archaeological Documentation
Simon
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA Close Range Photogrammetry vs. 3D Scanning for Archaeological Documentation The proliferation of terrestrial laser scanners on the market over the past few years has been accompanied by a rapid adoption of the technology by archaeologists.  This increased archaeological use ...

11/06/2012
Rocket Science and 3D Analyses in the Preservation of Artistic and Historic Works
John Asmus
 

This presentation was presented as the keynote address for the 3D Digital Documentation Summit held July 10-12, 2012, Presidio, San Francisco, CA.   Rocket Science and 3D Analyses in the Preservation of Artistic and Historic Works More than sixty years ago development began on the nuclear-propelled ORION Spaceship destined for a manned mission to the planet Saturn. This ...

10/29/2012
Monitoring Using Laser Scanning – Case Study of Watts Towers
Gray
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Monitoring Using Laser Scanning – Case Study of Watts Towers This paper will explore the use of laser scanning as a part of a controlled survey to measure movement of buildings and structures over time. In 2011 a ...

10/22/2012
Evolution in Project Workflow – Is High Definition Survey the Missing Link? – Brandon C. Friske
Friske
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA   Evolution in Project Workflow – Is High Definition Survey the Missing Link? There is a major shift occurring in the preservation and building industry today. It was only 30 years ago that architects and engineers where designing ...

10/18/2012
3D Technology and the H.I. Hunley: Beyond Documentation – Christopher Watters
Watters
 

Since raising the H.L. Hunley submarine (1863) from the seabed in 2000, the project has incorporated 3D technologies including laser scanning, patterned light scanning, Vulcan point system, and computer modeling. Archaeologists developed the use of 3D technologies primarily for site plan development and artifact documentation. As the project progressed, conservators found other applications for the ...

10/18/2012
Color and Spectral Archiving Using Dual-RGB Imaging
Screenshot of “SpectralAnalyzer” software.
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Color and Spectral Archiving Using Dual-RGB Imaging by Roy S. Berns and Jim Coddington Imaging in museums serves multiple end uses from publication to detailed documentation. Commercial RGB digital cameras have, at best, adequate color accuracy , demonstrating ...

07/23/2012
Saving the Lines: Documenting Ships and Small Craft Using Laser Scanning Technology
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. Saving the Lines: Documenting Ships and Small Craft Using Laser Scanning Recording the shape of ships is especially challenging as they are typically constructed with compound curves and complex surfaces. Traditional hand-measuring techniques are time-consuming and only ...

07/23/2012
3D Digital Documentation of Cultural Resources in Southern Arizona National Parks
Southern ArizonaNationalParks
 

This poster was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Fransisco, CA. 3D Digital Documentation of Cultural Resources in Southern Arizona National Parks The National Park Service Southern Arizona (SOAR) group consists of Casa Grande Ruins National Monument, Chiricahua National Monument, Coronado National Memorial, Fort Bowie National Historic Site, ...

07/23/2012
Paradise Gardens; its Past and its Future
JordonPoole
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Paradise Gardens; its Past and its Future Transcript Church:     This is Jordan Poole, the very newly elected director ...

04/20/2012
Iron Fencing Care Workshop in Bloomington, Indiana
End of the Day Group Photo
 

NCPTT, in partnership with Monroe County History Center at Indiana University, conducted a workshop focused on the techniques and knowledge needed to preserve ornamental ironwork in an architectural setting. This workshop begin with an opening lecture session at 6:30 p.m. by NCPTT’s Materials Conservator Jason Church on Friday, October 14th at the History Center in Bloomington, Indiana. ...

04/18/2012
The Strange Procession That Never Moves
Wooldridge Postcard
 

The Wooldridge Monuments are a group of eighteen life-sized sculptures located in Maplewood Cemetery, Mayfield, Kentucky. Listed on the National Register of Historic Places, they commemorate the life and relatives of Henry G. Wooldridge.

04/05/2012
Planning to Stabilize, Document, Conserve and Interpret Howard Finster’s Paradise Garden in Summerville, Georgia
Paradise Gardens
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Planning to Stabilize, Document, Conserve and Interpret Howard Finster’s Paradise Garden in Summerville, Georgia Abstract This presentation will illustrate ...

04/04/2012
The Orange Show Center for Visionary Art
Orange Show
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. The Orange Show Center for Visionary Art Transcript Church:     Alright we’re ready to get started back. Our first ...

04/04/2012
Unicultural Ethnography: Preserving Outsider Art Through the Ethnography of Individual Outsider Artists
Juanita Leonard in her self built church.
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Unicultural Ethnography: Preserving Outsider Art Through the Ethnography of Individual Outsider Artists Abstract Certain aspects of the artistic experience ...

04/04/2012
God’s Architects; Documenting the Materials, Methods, and Self-Taught Builders of the South
Reverend HD Dennis builder of Margaret's Grocery
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. God’s Architects; Documenting the Materials, Methods, and Self-Taught Builders of the South Abstract Scattered about remote back roads and ...

04/04/2012
Taking the Art to the Streets: How the Citizens of Los Angeles Saved Watts Towers
Watts Towers
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Taking the Art to the Streets: How the Citizens of Los Angeles Saved Watts Towers Transcript Church:         ...

04/03/2012
Creating a Conservation Plan for Vollis Simpson’s Whirligigs
Vollis Simpson
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Dennis Montagna Creating a Conservation Plan for Vollis Simpson’s Whirligigs Abstract For the past thirty years, 92-year-old Vollis Simpson has ...

04/03/2012
Re-evaluation of 1984 Preservation Decisions for the African House Murals by Clementine Hunter
Swicklik cleaning the Clemetine Murals in 1984
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Abstract Re-evaluation of 1984 Preservation Decisions for the African House Murals by Clementine Hunter In 1984 as an Associate ...

04/03/2012
Simon Rodia’s Towers in Watts (The Watts Towers) Four Decades of Interventions and Still Searching for a Solution
Thermal Image by LACMA
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Simon Rodia’s Towers in Watts (The Watts Towers) Four Decades of Interventions and Still Searching for a ...

04/03/2012
What’s In and What’s Out
James Dixons,  Tory Island East End (above) and Tory Island West End (below).
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Transcript McBride:     Good afternoon ladies and gentlemen.  My name is Patrick McBride and on behalf of myself ...

04/03/2012
Virtual Conservation of Folk and Outsider Art Environments
William Averett “ Happy Villa” (Destroyed), Andrade, CA - 1976
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Virtual Conservation of Folk and Outsider Art Environments Abstract The presentation will address the issue of conserving documents pertaining ...

04/03/2012
A Creative Obsession: Materials and Techniques of the Self-Taught Artist James Castle
James Castle circa 1974. Philadelphia Museum of Art, © James Castle Collection and Archive
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. A Creative Obsession: Materials and Techniques of the Self-Taught Artist James Castle Abstract Identifying the materials of works of ...

04/02/2012
Realms of the Unreal and the Henry Darger Archives
Raw materials form the residence of Henry Darger.
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Realms of the Unreal and the Henry Darger Archives Abstract The American Folk Art Museum maintains the single largest ...

03/30/2012
Magical Mosaics: Preserving Isaiah Zagar’s Philadelphia Art Environment
Philadelphia's Magic Gardens
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Magical Mosaics: Preserving Isaiah Zagar’s Philadelphia Art Environment Abstract One of the nation’s most amazing, yet least known, art ...

03/29/2012
Discriminating Palettes: The Painting Materials of Clementine Hunter and Her Imitator
Barabe studies one of the Toye forgeries
 

This lecture was part of the Divine Disorder Conference on the Conservation of Outsider Folk art that was organized and hosted by NCPTT. The conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana. Discriminating Palettes:   The Painting Materials of Clementine Hunter and Her Imitator Transcript Church:    Next we have Joe Baraby, Senior ...

03/29/2012
FBI Investigation of Clementine Hunter Forgeries by William Toye
Randy Deaton takes a close look at a Toye forgery at the Gallery 2 show
 

United States Attorney Stephanie A. Finley announced that Robert E. Lucky, Jr, 64, of New Orleans, was sentenced today to 25 months in federal prison and was ordered to pay $326,893 in restitution for mail fraud in connection with selling fake paintings attributed to Louisiana artist Clementine Hunter. Lucky was also sentenced to three years’ ...

03/28/2012
Clementine Hunter; History of Forgery
Clementine Hunter painting
 

The talk presents a biographical sketch of the folk artist, Clementine Hunter, born in southern Natchitoches Parish in late 1887 and died January 1, 1988. Around 2000 a group of paintings appeared on the market supposedly by Hunter but later found to be painted by Beryl and William Toye. The lecture will include details of the ...

03/20/2012
Preservation of Human Dental Surface Micro-Topography with Three-Dimensional Non-Destructive Digital Imaging (2012-01)
2012-01
 

Human skeletal remains from archeological sites are often studied to determine historical information such as sex, age, and health, among other facts.  The information from individuals can be used to better understand a population and the culture of a past people.  With the aid of a Preservation Technology and Training Grant, Dr. Shannon Hodge at ...

02/28/2012
Cemetery Documentation
Cemetery Documentation
 

This webinar will cover the basics needed for Cemetery Documentation. The talk will run one hour of lecture with a following half hour for questions and answers. Topics covered in this talk will include an introduction to documentation surveys and forms followed by an overview of definitions general needed in cemetery documentation. Definitions covered are ...

02/28/2012
Evaluation of Ca(OH)2 Nano-Particle Treatment of Cordage/Basketry (2011-01)
2011-01
 

The major goals of this project involved: laboratory set-up; synthesis of Ca(OH) 2 nano- particles; cordage sample acquisition; development of a research design; preliminary testing of solutions and solvents; mechanical and aging studies; analytical characterization; imaging and data collection; and report preparation. The project has demonstrated that aqueous dispersions of calcium hydroxide nano-particles are not ...

12/31/2011
Development of a Micro-fading Tester with Near-UV Capability (2011-09)
2011-09
 

Paul Whitmore, director of Carnegie Mellon University’s Art Conservation Research Center (ACRC), has developed a portable device that can be used to determine how exposure to visible light and ultraviolet (UV) rays affect the colors on a work of art, providing vital information that can be used to better preserve the artwork.

12/31/2011
Controlling Salt Damage (2011-02)
2011-02
 

Growth of salt crystals within the pores of stone can cause serious damage. Salt may enter with ground water or be created by reaction of the minerals in the stone with atmospheric pollutants. As water evaporates from the pores of the stone, the salt concentration rises and the crystals grow until they approach the pore ...

12/31/2011
Development of Ceramic Reference Materials for Calibration and Quantification of Portable XRF Data (2011-06)
2011-06
 

While archaeologists have had some success identifying who made ceramics and where they made them, these techniques relied on removing a sample and complex instrumentation. The Virginia Department of Historic Resources (VDHR) used portable x-ray fluorescence (XRF) instrumentation as a tool to determine the geographic origin of Native American ceramics.

12/31/2011
Nanotechnology and Materials Testing: Using Nanoparticles to Tag Consolidant to Determine Depth of Penetration (2011-05)
2011-05
 

With a PTT grant funded by NCPTT, a research team including conservators from the New York State Bureau of Historic Sites, scientists with the Physics Department of Union College, Schenectady, New York, and scientists from the nanotechnology industry began experimenting with nanoparticles to advance conservation treatments in the field of historic preservation. This collaboration ...

09/19/2011
Limpieza Básica para Monumentos (2007-01)
Jason Church, Conservador de Objetos, Programa de Investigacion de Materiales
 

Hola, en este video le estaremos enseñando los procedimientos básicos para limpiar lápidas de piedra. Hay dos cosas que se deben de recordar: lo primero es que siempre hay que asegurarse de la seguridad personal y lo segundo es no hacer daño a la lápida como tal.

09/15/2011
Returning the Forest to Forest Lawn: Tree Planting Strategies for Historic Landscapes
 

This presentation is part of the International Cemetery Preservation Summit, October 8-10, 2014 Niagara Falls, NY. Returning the Forest to Forest Lawn: Tree Planting Strategies for Historic Landscapes by Matthew Quirey Matthew Quirey:  Good afternoon. Thanks for having me. Today, it’s my pleasure to talk about the Forest Lawn landscape renewal plan and returning the forest to ...

08/12/2011
Best Practice Recommendations for Cleaning Government-Issued Marble Headstones
Jason Church demonstrates the proper technique for cleaning a marble headstone using a biocidal cleaner, water, and a soft bristle brush.
 

In 2004, the Department of Veteran Affairs National Cemetery Administration turned to NCPTT when it wanted advice on chemical cleaners for their marble headstones. This began and partnership and extensive research on the subject of commercially available cleaners for removing biological growth and general soiling from marble headstones. This week, NCPTT’s Mary Striegel reported the results ...

07/21/2011
Alexander Calder’s “Hello Girls”; a Wind and Water Driven Non-Interactive Feature by John Hirx
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Alexander Calder’s “Hello Girls”; a Wind and Water Driven Non-Interactive Feature by John Hirx Abstract Alexander Calder was commissioned to create “Hello Girls”, a wind and water activated sculpture, for the Los Angeles County Museum of Art (LACMA) when the museum was established ...

06/18/2011
Kansas City Water Quality by David Greene
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Kansas City Water Quality by  David Greene This presentation will provide an overview of federal drinking water regulations, typical municipal water supply chemical/biological characteristics, and premise plumbing (e.g. fountains) issues related to water quality. Speaker Bio David Greene is the Laboratory Manager at the ...

06/06/2011
Toward Better Treatment of Cast-Iron Fountains with Zinc Statues
NPS Arrowhead Logo
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Toward Better Treatment of Cast-Iron Fountains with Zinc Statues by Carol Grissom Abstract: The first statue to decorate a publicly financed fountain in the United States was William Rush’s wooden Water Nymph and Bittern, made for Philadelphia’s new water works in 1809.  Fountains ...

06/04/2011
Cultural Heritage Recovery in Haiti (Podcast 31)
DSCF2728
 

Welcome to the Preservation Technology podcast; the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Service’s National Center for Preservation Technology and Training. Today we join Jason Church as he speaks with Karen Pavelka, a lecturer in the School of ...

05/03/2011
Ft. Livingston, Grand Terre Island Field Report (2010-03)
2010-03
 

NCPTT staff visited Fort Livingston, Grand Terre Island, on June 16, 2010 to evaluate the condition of the structure and the amount of oil contamination; to conduct field tests on cleaning methods; and to collect oil, water, and oil-contaminated sand samples for further testing in the laboratory. The amount of oil and area of contamination ...

12/31/2010
NCPTT, Southern Miss and Hybrid Plastics Collaborate to Study Stone Strengtheners (Podcast 26)
Derek Patton discusses the POSS system with NCPTT Scientists during a visit to USM
 

In this edition of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Derek Patton, Assistant Professor in the School of Polymers and High Performance Materials at The University of Southern Mississippi. NCPTT is partnering with USM and Hybrid Plastics on a National Science Foundation grant to advance the science of ...

12/07/2010
Creation of a Web-accessible Database of the Comparative Plant Fiber Collection (2010-02)
2010-02
 

This database of micrographs of textile fibers acquired through the use of multiple microscopic techniques contains 145 collections with 1404 individual files, and requires 23GB of storage space. Each file contains a high resolution image with text fields that delineate image location and size, image collection information, microscopy technique and details of the features presented ...

10/06/2010
Video: The Historic Building Material Bousillage
A traditional bousillage building
 

In this video we will discuss a traditional Louisiana construction method called Bousillage. Bousillage is a Louisiana French term for walls made of mud. The origins of the word comes from Bous which means mud. Louisiana’s bousillage techniques appear s to be a blending of French and Native American traditions. Both cultures employed similar mud walled ...

09/02/2010
Folk Art Conservation and the Rock Garden in Chandigarh, India (Podcast 22)
Nek Chand's Rock Garden, bangle ladies, Chandigarh, India.
 

In this edition of the podcast, we join NCPTT’s Jason Church as he speaks with Tony Rajer. He is an Art Conservator with the Nek Chand Foundation and a conservation professor at the University of Wisconsin. Today they will discuss Rajer’s interest in folk art and his work with the Rock Garden in Chandigarh, India.

07/21/2010
Preservation of Iron and Steel in Bridges and Metal Structures (Podcast 17)
Vern Mesler welds a wrought iron during the workshop.
 

In this episode of the Preservation Technology Podcast, we join NCPTT’s Jason Church as he speaks with Vern Mesler, adjunct professor at Lansing Community College. They will discuss the “Preservation of Iron and Steel and Bridges and Other Metal Structures Workshop,” which was funded by a grant from the National Center.

04/13/2010
Lifting and Hoisting Stone Grave Markers Video
Catholic Cemetery in Natchitoches, La
 

Many fallen or sunken grave markers are too large or weigh too much to be reset by hand. For these markers a mechanical hoisting or lifting system must be used. There are many types of lifting systems in use from very complex cranes and truck mounted hydraulic booms to less complex gantries and tripod hoists. ...

03/21/2010
Sourcing Shell and Shell-Tempered Artifacts using Laser Ablation (2009-02)
2009-02
 

This project involved developing a new method for using the chemical content of freshwater mussel shell as a means of sourcing prehistoric, shell-tempered pottery and shell artifacts to their places of origin. By extension, this means that prehistoric trade and exchange networks can be mapped out. Because each waterway is chemically different to some extent, ...

12/31/2009
Evaluation of Conservation and Preservation Practices in a Southwest Pottery Collection (2009-04)
2009-04
 

A variety of materials and methods have been used to preserve ceramic vessels. Many have proven successful, while others are damaging. Monitoring and evaluation of past treatments is a documented research priority in the conservation field. The Arizona State Museum (ASM) has examined, recorded and analyzed the performance of past treatments on ...

12/31/2009
Using Eddy Current Technology in Conservation Science (Podcast 8)
Curtis Desselles and Houren Zhu build and test eddy current analyzers.
 

In this episode, Jason Church speaks with Curtis Deselles, an intern with the Materials Research program at NCPTT, discusses the use of eddy currents and eddy current technology in conservation science. Mr. Deselles has built several eddy current analyzers, custom software, and presented on this topic at a non-destructive conference in St. Louis. NCPTT has been ...

08/12/2009
Using Lasers to Remove Graffiti from Rock Art and Rock Imagery (Podcast 7)
Claire Dean uses laser to clean rock images.
 

Today we are joining NCPTT’s Jason Church as he speaks with Claire Dean of Dean Associates of Conservation Services about using lasers to remove graffiti from rock art. Rock art or rock imagery is the common term for paintings and carvings on rock and in North America that is mostly associated with native communities. Download Episode ...

07/16/2009
Development of a Rapid Indicator of Biodeterioration of Historic Stone (2008-09)
2008-09
 

2006 NCPTT Grant to Harvard University, “Development of a Rapid Indicator of Biodeterioration of Historic Stone.” Biodeterioration plays an important role in the degradation of stone in historic buildings, monuments, and archeological sites.

12/31/2008
Limewash Video: Application and Preparation of Limewash (2008-07)
2008-07
 

This six minute video explains how to prepare and apply limewash.

12/31/2008
Digital Image Analysis of Petrographic Thin Sections in Conservation Research (2004-01)
2004-01
 

Traditional thin-section analysis techniques such as tedious manual point counting are time consuming and require numerous measures. The use of visual estimation charts produce results of questionable accuracy.

09/22/2008
Protective Glazing Study (1996-06)
1996-06
 

In this study, Inspired Partnerships, a non-profit organization in Chicago, investigated the virtues and liabilities of various protective glazing installations over stained glass.

09/22/2008
Historic Resource Surveys and the Internet (1999-10)
1999-10
 

This manual teaches communities and neighborhoods how to complete their own historic resource surveys and share that information quickly.

09/22/2008
Glass and Stained Glass Conservation (1998-28)
1998-28
 

This video covers a workshop on the conservation and restoration of stained glass.

09/22/2008
Advances in Digital Radioscopy for Use in Historic Preservation (2007-05)
2007-05
 

In the interest of saving as much historic fabric as possible and not altering or scarring historic materials as a result of investigative probes, architectural conservators look to nondestructive testing methods for the evaluation and identification of materials, conditions and alterations made to structures over time.

12/31/2007
Comparing Mass Drying and Sterilization Protocols for Water-Damaged Books (2008-04)
2008-04
 

Recovery specialists need to have a clear sense of the pros and cons of existing treatment options before they can respond effectively.

12/31/2007
Swelling Mechanism in Clay-Bearing Sandstones (2007-09)
2007-09
 

Swelling clays in stone can generate damaging stresses during a wetting or a drying cycle, which leads to deterioration of building stones such as Portland Brownstone.

12/31/2007
Iron Fence Repair (2007-03)
Iron Fence Repair (2007-03)
 

Materials Conservator Jason Church demonstrates how to properly repair an iron fence.

12/31/2007
Wooden Artifacts in Cemeteries: A Reference Manual (2007-10)
2007-10
 

This project is about saving historic wooden artifacts in cemeteries. Cemeteries are important repositories of local and national history, valued not only for the stories they tell, but also for their emotional and civic connections.

12/31/2007
An Evaluation of Supercritical Drying and PEG/Freeze Drying of Waterlogged Archaeological Wood (2007-04)
2007-04
 

This study evaluates the physical effects of drying waterlogged archaeological wood using supercritical carbon dioxide as compared to air drying and the polyethlene gylcol (PEG)/freeze drying method.

12/22/2007
Video Preservation Website: Migration of Historic Video Tape to Digital Video Files (2007-13)
Video Preservation Website
 

This thorough website was built and designed as a clearinghouse of information on videotape preservation.

11/08/2007
Cleaning a Stone Grave Marker (2007-01)
cmc-cleaning
 

Materials Conservator Jason Church demonstrates how to properly clean a stone grave marker.

04/19/2007
Essentials in Cemetery Monument Care
cmc-2007-tel
 

Materials Research Chief Mary Striegel and Materials Conservator Jason Church conduct a TEL NPS course “Essentials in Cemetery Monument Care” broadcast on January 30, 2007.

01/30/2007
Removal of Arsenic and Mercury Contamination in Museums using a Natural Environmentally Benign Chemical (2006-02)
2006-02
 

Some natural science specimens and ethnographic artifacts in museums were historically treated with arsenic and mercury salts. This has created an environmental concern for museum workers and the public who may be exposed to these toxins. In addition, museums are frequently being asked to return sacred objects under the Native American Graves Protection and Repatriation ...

12/31/2006
Water Transport Characteristics of Masonry Restoration Mortars (2004-26)
2004-26
 

The focus of this project was to investigate test methods for determining water vapor transmission (WVT) rates in mortar and to assign appropriate WVT rates for specific hydraulic and non-hydraulic restoration mortars.

12/31/2004
Control of Subterranean Termite Populations at San Cristobal and El Morro, San Juan National Historic Site (2003-01)
2003-01
 

This publication studies three monitoring systems and efforts to eliminate termites at San Cristobal and El Morro of the San Juan National Historical Site in Puerto Rico.

12/31/2003
Protection of Metallic Monuments from Biodeterioration (2003-04)
2003-04
 

In 2003, NCPTT supported research that studied biodeterioration on metallic monuments. Ralph Mitchell, Professor at Harvard University’s School of Engineering and Applied Sciences, employed electrochemical impedence spectroscopy to analyze the susceptibility of monument coatings to degradation by indigenous microflora activity.

12/31/2003
Development and Implementation of the Internet Accessible Infrared and Raman Users Group (IRUG) Spectral Database (2003-03)
2003-03
 

In 2003, the Infrared and Raman Users Group received NCPTT support to develop and implement an online collaborative database and bibliography of high quality infrared reference spectra. Currently, the database contains over 1250 spectra of oils, waxes, natural and synthetic resins, dyes, pigments, proteins, gums, and minerals.

12/31/2003
Control of Formosan Subterranean Termite Infestations Using Baits Containing an Insect Growth Regulator (2002-21)
2002-21
 

Baits containing an insect growth regulator, hexaflumuron, were used in the historic Presbytere and the Creole House of the Cabildo, in the French Quarter of New Orleans, Louisiana, to control infestations of the Formosan subterranean termite, Coptotermes Formosanus Shiraki.

12/31/2002
Development and Testing of Organic Coatings for the Preservation of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion – Year 3 (2002-18)
2002-18
 

In 2002, researchers from North Dakota State University received funding from the NCPTT to study protective coatings for outdoor bronze sculpture and ornamentation. Previous research had shown that the most protective coatings tend to be impervious to conventional solvent removal techniques and that standard mechanical removal methods damage bronzes and their patinas. This ...

12/31/2002
Improved Sol-Gel Consolidants for Stone (2002-24)
2002-24
 

The purpose of this project was to develop improved consolidants for restoration of stone damaged by weathering. Conventional consolidants are organic polymers or silica gels, which are simple materials that do not permit matching of a range of properties of the stone. Later improvement of the suspension procedure resulted in consolidants that are much more stable ...

12/31/2002
New Termite Baiting Technologies for the Preservation of Cultural Resources: Results of Field Trials in the National Park System (2002-09)
2002-09
 

Termites are a significant structural pest in the United States, costing the public nearly $1.5 billion in damage each year.

12/31/2002
Standard Practice for Determining the Components of Historic Cementitious Materials (2002-20)
2002-20
 

This report presents a review of the literature followed by recommendations based on best practices for the analysis of historic cement-based materials. The report is geared towards the practicing analyst.

12/31/2002
The Effects of Peroxide Decontamination Reagents on the Chemical and Physical Properties of Cultural Materials (2002-22)
2002-22
 

Because of the scale of contamination, gaseous fumigation with chlorine dioxide was proposed as the method of decontamination for the Senate building.

12/31/2002
Development and Testing of Organic Coatings for the Protection of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion — Year 1 (2001-09)
2001-09
 

Phase 1 of this project used electrochemical characterization methods to evaluate coatings’ corrosion protective performance under conditions that directly emulated exposure to polluted atmospheres.

12/31/2001
Development and Testing of Organic Coatings for the Protection of Outdoor Bronze Sculpture from Air-Pollutant Enhanced Corrosion — Year 2 (2001-08)
3661074695_ef101eee64_b
 

In 2001, North Dakota State University presented conclusions from the second year of a three year NCPTT funded project on outdoor bronze protective coatings. Coatings investigated include: a fluorocopolymer blended with various acrylics, conductive polymers, BTA pre-treatments, and a very fine titanium dioxide.

12/31/2001
The Role of Microorganisms in the Deterioration of Atmospheric Pollutants of Stone Used in Historic Buildings and Monuments (2001-01)
2001-01
 

The objectives of this grant were to determine the responses of the microflora to contamination of historic limestone materials with atmospheric pollutants. We also studied the effects of these interactions on the deterioration of the materials.

12/31/2001
Examination of Gilded Bronze using Nondestructive Eddy Current Techniques (2001-10)
2001-10
 

Eddy current testing methods were used to characterize model gilding layers on bronzes and to make measurements on gilded bronze objects in the Freer Gallery of Art.

12/31/2001
Conservation and Art Materials Dictionary (2000-07)
2000-07
 

Knowledge of material properties, reactivity and history can be crucial to conservation treatment success and safety.

12/31/2000
Vertical Gradients of Pollutant Concentrations and Deposition Fluxes on a Tall Limestone Building (2000-16)
Sampling Sites at the Cathedral of Learning
 

The role of air pollutants in the soiling of a limestone building was investigated by measuring pollutant airborne concentrations and deposition at different heights at the Cathedral of Learning in Pittsburgh, Pennsylvania.

12/31/2000
Research into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase III (2000-08)
2000-08
 

The ultimate goal of this three-phase research project was to develop new coating strategies through an increase in understanding of how coatings for outdoor bronze sculpture and ornamentation work and fail. The immediate objective of Phases II and III of the project was to determine the weathering performance of five medium to high performance coating ...

12/31/2000
Elimination of Subterranean Termite Populations from the Statue of Liberty National Monument Using a Bait Matrix Containing an Insect Growth Regulator, Hexaflumuron (1999-11)
1999-11
 

Infestation by the eastern subterranean termite, Reticulitermes flavipes (Kollar), was found throughout the two ground floors of the pedestal of the Statue of Liberty National Monument.

12/31/1999
Preservation 101: An Internet Course on Paper Conservation (1999-30)
1999-30
 

Preservation 101 is an online course that will help you learn about the basics of preservation in the context of small and moderately-sized library or archival collections. This course was produced as one component of a grant from the Institute of Museum and Library Services awarded to the Northeast Document Conservation Center (NEDCC). The grant supported ...

12/31/1999
Research into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase II (1999-23)
1999-23
 

This research addresses the continuing need for new coating strategies to protect outdoor bronzes from the effects of polluted environments.

12/31/1999
Nondestructive Method for Hardness Evaluation of Mortars (1999-02)
1999-02
 

The objective of this study was to develop a test method to measure the hardness of masonry mortars with a pendulum hammer.

12/31/1999
Directory of Analytical and Materials Testing Services for Historic Preservation (1998-06)
1998-06
 

There are only a handful of laboratories specialized in, and dedicated to, the study and analysis of cultural property.

12/31/1998
Description and Analysis of NAPAP Briquette Surface Chemistry Files (1998-30)
1998-30
 

NAPAP researchers exposed limestone and marble briquettes to weathering for months to years at several different sites. They sampled the briquettes and analyzed multiple layers for anion content.

12/31/1998
Glass & Stained Glass Conservation Workshop (1998-29)
Glass & Stained Glass Conservation Workshop - Document Cover
 

In the summer of 1998, the Gerald R. Ford Conservation Center in Omaha, Nebraska hosted a seminar focusing on the restoration and conservation of three-dimensional and stained glass objects. Participants included conservators, professionals, and preservationists from all across the Midwest. During the five-day seminar, the Center provided lectures, educational materials and instruction, and hands-on learning ...

12/31/1998
Review of the Literature on the Topic of Acidic Deposition on Stone (1998-09)
1998-09
 

It is extremely difficult to determine how much of the deterioration observed on stones is due to “acid rain” since its action is not limited to one mechanism. Rather, it results from the interaction of various mechanisms, many of which also occur in natural weathering.

12/31/1998
Effect of Water on Lower Pecos River Rock Paintings in Texas (1998-22)
Pecos Rock Art
 

In 1998, NCPTT partially funded a research project that involved an investigation of rock paintings in the Lower Pecos River area of Texas.  Rock Art Research, the journal of the Australian Rock Art Research Association (AURA) and the International Federation of Rock Art Organizations (IFRAO), communicated results which were published by Elmo J. Mawk and ...

12/31/1998
Physical and Chemical Process Of Soiling and Washoff at the Cathedral Of Learning (1998-11)
1998-11
 

Sensitive building materials such as calcareous stone are subject to accelerated deterioration by several agents. These may be physical processes such as freeze-thaw cycles, chemical processes such as reaction with sulfur dioxide gas, or biological processes such as attack by microorganisms.

12/31/1998
Analyzing the Effect of Diethylaminoethanol, an Indoor Air Pollutant, on Traditional Easel Paintings, II (1998-17)
1998-17
 

The analyses reported here indicate that the IUAM paintings have not been damaged by reaction with DEAE.

12/31/1998
Analyzing the Effect of Diethylaminoethanol, an Indoor Air Pollutant, on Traditional Easel Paintings, I (1998-16)
1998-16
 

The CCI work is being carried out in two phases, with Phase 1 to establish appropriate analytical procedures for determining the presence and effects of DEAE on paintings, and Phase 2 to analyze the effects of DEAE and conservation treatments on DEAE contaminated paintings.

12/31/1998
Plasma extraction and AMS 14C dating of rock paintings (1997-14)
1997-14
 

We developed a plasma-chemical technique to remove carbon from rock paintings. This extraction is followed by accelerator mass spectrometric analysis of the 14C to yield direct estimates of the ages of rock paintings. We have demonstrated use of the technique on charcoal as well as iron and manganese pigmented paintings. Unfortunately, there are no rock paintings made ...

12/31/1997
Research Into Protective Coating Systems for Outdoor Bronze Sculpture and Ornamentation Phase I (1997-03)
1997-03
 

The conservation community has expressed general dissatisfaction and frustration in numerous forums over current protective coatings used in the preservation of outdoor bronzes.

12/31/1997
Review of the State of the Art of Laser Cleaning in Conservation (1997-01)
1997-01
 

Considerable interest, as well as concern, exists within the profession of art and artifacts Conservation regarding the potential improvements which may be brought about by the introduction of laser-based methods of cleaning.

12/31/1997
Testing the Energy Performance of Historic Windows in a Cold Climate (1997-16)
 

A study was undertaken to determine the feasibility of renovating and upgrading an original condition window to the extent that its thermal performance would be equivalent to a window using replacement sash or window inserts.

12/31/1997
Methodology Report for a Multimedia Approach to Training Staff in Simple Book Repair (1997-26)
1997-26
 

Simple book repair was defined as those repairs meeting the following criteria: the repair could be completed in a relatively short period of time, required a relatively low level of conservation skill and experience, and could be accomplished with available tools and supplies.

12/31/1997
Deterioration and Preservation of Porous Stone Royal Presidio Chapel, Monterey, California (1996-04)
1996-04
 

Visual inspection of the Chapel indicated that lateral movements, meteoric and ground water, and soluble salts are the main causes of deterioration of the Chapel’s facade and walls.

12/31/1996
Report for NCPTT on Funding Priorities in Materials Conservation (1996-07)
1996-07
 

The AIC polled its membership in May 1996 via a mail-survey to provide an updated and refined list of the most critical needs for research and training in the field of materials conservation.

12/31/1996
Testing the Energy Performance of Wood Windows in Cold Climates: A Report to the State of Vermont Division for Historic Preservation, Agency of Commerce and Community (1996-08)
1996-08
 

During rehabilitation of historic buildings, the question of how to treat the windows is inevitably raised. Within the decision-making process for deciding to replace or renovate an existing window, energy consideration should not be the primary criteria, but should not be ignored.

12/31/1996
Vertical Gradients of Pollutant Concentrations and Deposition Fluxes at the Cathedral of Learning (1996-09)
1996-09
 

Numerous studies have shown that air pollutants can cause deterioration of sensitive materials. This problem is particularly important for buildings and monuments, where materials are chosen for structural support as well as for their aesthetic value.

12/31/1996
Evaluation Of NAPAP Aerometric Data (1996-21)
1996-21
 

The National Acid Precipitation Assessment Program (NAPAP) started in the early 1980s and has continued more or less to the present. At least parts of the program and resulting data have been inherited by the Materials Research Program of the recently established National Center for Preservation Technology and Training (NCPTT) of the National Park Service.

12/31/1996
A Simple Book Repair Manual (1995-02)
Screenshot of Web Resource
 

The web version of the Simple Book Repair Manual was created by members of Preservation Services, Dartmouth College Library.

12/31/1995
Influence of Atmospheric Pollutants on Soiling of a Limestone Building Surface (1995-06)
1995-06
 

Air pollution has been responsible for increasing the rate of deterioration of many historically and culturally valuable monuments.

12/31/1995

NameDate
The Challenges of Treating Delaminating Slate Headstones: New Treatments with New Materials
Slates in various states of delamination.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Challenges of Treating Delaminating Slate Headstones: New Treatments with New Materials by Irving Slavid Irving Slavid:  I see they’ve brought the break out, the danishes, so I won’t be long. I do hands-on restoration among other things and I’m going ...

12/10/2014
Confederates in the Cemetery: Federal Benefits & Stewardship
National Cemetery Confederate headstone:   Fort Smith, AR
 

This presentation is part of the International Cemetery Preservation Summit, October 8-10, 2014 Niagara Falls, NY. Confederates in the Cemetery: Federal Benefits & Stewardship by Elizabeth Heavrin and Sara Amy Leach Elizabeth Heavrin: The war department established the first national cemetery during and immediately after the Civil War to provide final honorable resting places for soldiers ...

12/08/2014
Nationwide Monument Conservation at National Cemeteries: Planning, Management, and Treatment Implementation
Bronze Plaques (Keokuk, IA)
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Nationwide Monument Conservation at National Cemeteries: Planning, Management, and Treatment Implementation by Sara Johnson Sara Johnson: Going to talk a little bit about a contract that my company has with the National Cemetery Administration for the preservation of a number of ...

12/03/2014
Conserving the Nation’s Gravesite: Treatment of the Tomb of the Unknowns at Arlington National Cemetery
Final Results
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Conserving the Nation’s Gravesite: Treatment of the Tomb of the Unknowns at Arlington National Cemetery by Debora Rodrigues and Amy Hollis Amy Hollis: I’m going to talk a little bit about a job that I lived for a couple years, which ...

11/24/2014
Reimagining August Bloedner’s 32nd Indiana Infantry Monument (1862)
Original (left) and successor(right) Monument.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Reimagining August Bloedner’s 32nd Indiana Infantry Monument (1862) by Sara Amy Leach Sara Amy Leach:  The most fun I have at work is collecting postcards, cemeteries off of eBay and garage sales.  Good afternoon, this presentation is essentially phase tow of ...

11/19/2014
Photogrammetric Documentation of Weathered and Damaged Headstones at the Cataraqui Cemetery,Kingston Ontario
Absalom Day
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Photogrammetric Documentation of Weathered and Damaged Headstones at the Cataraqui Cemetery,Kingston Ontario by George Bevan and Alexander Gabov George Bevan:  Today for my collaborators in this project. Ian Longo, one of my undergraduate students, who’s worked extensively in the Cataraqui Cemetery ...

11/17/2014
Fragile Grounds: Mapping South Louisiana’s Cemeteries
Holy Family, Cocodrie
All Saints Day
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Fragile Grounds: Mapping South Louisiana’s Cemeteries by Jessica H. Schexnayder and Mary H. Manhein  Jessica: Let me give you a little bit of background about this before we start this presentation.  This actually started out as a student project.  I was ...

11/05/2014
Handcrafted Gravemarkers of Julius “Jesse” Thomas
Variations in Symbol
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Handcrafted Gravemarkers of Julius “Jesse” Thomas  by Anne Shelton   Anne:  Thanks to Stephanie and Gordon I am so pleased to follow their presentation and it was terrific. It was really terrific and I was so pleased to see some really similar ...

11/03/2014
Made from My Own Hand: An Introduction to Concrete Grave Markers
Preservatrion Issues: Before and After
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Made from My Own Hand: An Introduction to Concrete Grave Markers by  Gordon Bond and Stephanie M. Hoagland Stephanie Hoagland: Good morning. Yesterday Jonathan Appell showed us some concrete that you never want to see in a cemetery, but today we’re ...

10/29/2014
In Small Things Remembered: The William Peters Reeves Grave Memorial at Kenyon College
William Peter Reeves Grave Site
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. In Small Things Remembered: The William Peters Reeves Grave Memorial at Kenyon College by Dennis Montagna Dennis: Thanks. Thanks, Jason. David, I think that with all that gnawing, we’ve done some studies and determined that that’s why squirrels don’t get into ...

10/27/2014
Maintaining Leadworks for Cemetery Monuments and Mausolea
Biological Growth on Failing Joint & New Wool
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Maintaining Leadworks for Cemetery Monuments and Mausolea by Angus “Gus” Fraser and David Gallagher Gus: Mount Auburn Cemetery in Cambridge, Massachusetts. Mount Auburn is a National Historic Landmark. It was the first of a rural or garden cemetery in the United ...

10/22/2014
Red Jacket: Sculpture Conservation Treatment in Forest Lawn Cemetery
Applying wax to Red Jacket
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Red Jacket: Sculpture Conservation Treatment in Forest Lawn Cemetery by Francis Miller Francis Miller: Thanks for having me here today, everyone, and thanks for everyone attending. It’s great getting a group like this together, not only to discuss issues with repairs and ...

10/20/2014
Portland Cement Vs Historic Gravestones
Portland Cement versus Historic Gravestones.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Portland Cement  Vs Historic Gravestones Jonathan Appell:  Apparently, The Pyramid of the Sun in Mexico looked like this before 1910. News story out now … I’ll just go through these images quickly, is this Mr. Menchaca just did a study based ...

10/15/2014
Returning From Oblivion: The Reemergence of a World War II Memorial Sundial
Sun Dial before conservation treatments.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Returning From Oblivion: The Reemergence of a World War II Memorial Sundial by Minxie and James Fannin   James Fannin: I’m going to have to use this for … I’m almost there. Good afternoon. I was going to say late, but we’re ...

10/10/2014
Modern Problems in Historic Cemeteries
St. Philip's churchyard, Charleston, SC
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Modern Problems in Historic Cemeteries by Frances Ford Ford: Hello. My presentation today I have titled Modern Problems in Historic Cemeteries, and you’ll find out why in just a second. My presentation outline will sort of set the scene of this ...

10/06/2014
Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions
Probe Survey
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Finding Avondale: Remote Sensing for an Unmarked Cemetery in Difficult Subsurface Conditions by Hugh B. Matternes and Valerie Davis Hugh: Good morning, I’m hoping you’ll learn not only from the results we have here but some of the mistakes we made ...

09/29/2014
Down to Earth: Conservation Decision-Making for Historic Cemeteries
Screen Shot 2014-09-24 at 8.18.22 AM
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Down to Earth: Conservation Decision-Making for Historic Cemeteries by Katharine Untch Katharine: Thank you very much. It’s a pleasure to be here, and I want to especially thank the conference organizers, Jason Church and Mary Striegel, NCPTT, not only for this ...

09/22/2014
The Cycle of Use, Neglect, and Renewal in Historic Family Cemeteries of Niagara, Ontario
Examples of active destruction, families moving from the area, and more passive neglect.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. The Cycle of Use, Neglect, and Renewal in Historic Family Cemeteries of Niagara, Ontario by Catherine Paterson Paterson: Thank you. I’m very excited to be here and to be speaking with you this morning. The focus of my talk is on ...

09/18/2014
Not Seeing the Cemetery for the Monuments: Understanding the Importance of Preservation Assessments
Gates are easy targets for theft.
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. Not Seeing the Cemetery for the Monuments: Understanding the Importance of Preservation Assessments by Michael Trinkley and Debi Hacker Michael:  My talk today deals with how, as conservators, we see the cemeteries in which we work. First, a little bit about ...

09/15/2014
They Died in Rome: Preservation of an Active, Historic Cemetery for Foreigners
The cemetery is also know for the "wildlife".
 

This presentation is part of the International Cemetery Preservation Summit, April 8-10, 2014 Niagara Falls, NY. They Died in Rome: Preservation of an Active, Historic Cemetery for Foreigners by Nicholas Stanley-Price Jason: I’d really like to thank also, both the people who welcomed us. Francis Miller for helping me pull together the hands-on. The hotel, because we ...

09/10/2014
ENGINEERING 281: Renovation of Fountains – Hydraulic Considerations by David Peterson
Fountain at Kingston Oaks.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. ENGINEERING 281: Renovation of Fountains – Hydraulic Considerations by David Peterson David Peterson: Let’s see, can you guys hear me without the microphone? Alright ‘cause I like to stand up here a little closer to you and not hide behind the podium. ...

06/06/2014
Historic Preservation Program at Mississippi College (Podcast 51)
SAM_0643
 

Download this episode as an mp3 or Subscribe via iTunes Historic Preservation Program at Mississippi College (Podcast 51) Ammons: Welcome to the preservation technology podcast, the show that brings you the people and projects that are advancing the future of America’s heritage. I’m Kevin Ammons with the National Park Services’ National Center for Preservation Technology and Training. ...

05/28/2014
A Brief Appreciation of Fountains Through History: Changing Functions, Appearances, and Meaning by John Scott
Ai Weiwei fountain at Princeton.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. A Brief Appreciation of Fountains Through History – Changing Functions, Appearances and Meaning – John Scott John Scott: And so, I also hope that after such a really good series of highly technical and practically experienced presentations that we won’t mind a ...

05/12/2014
Challenges of Maintaining the Fountains of “The City of Fountains” – Kansas City by Jocelyn Ball-Edson
JC Nichols Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Challenges of Maintaining the Fountains of “The City of Fountains” – Kansas City by Jocelyn Ball-Edson Jocelyn Ball-Edson: For today’s talk, I tried to categorize this into four super categories. My basic four categories … and this all overlaps. They’re all interchangeable ...

05/05/2014
Divine Disorder: Folk and Outsider Art Conference 2012
Participants talk with Juanita Leonard at her folk art church in Montgomery, Louisiana
 

The first Divine Disorder Conference was held February 15-16, 2012 on the campus of Northwestern University in Natchitoches, Louisiana.  This conference  focused on highlighting the under-appreciated decorative works of non-traditional artists. The conservation of these works is vital to preserving the life story of those artists outside the main stream art community. Artists come from ...

04/30/2014
Aquatic Plants for Water Quality Maintenance in Water Features and Fountains by Mary Willeford-Bair, Catherine Dewey, and Walter Zachritz
Aquatic plant boxes in water feature.
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. Aquatic Plants for Water Quality Maintenance in Water features and Fountains Mary Willeford-Bair : The National Park Service is responsible for the management of a variety of constructed water features across the nation. The National Park Service is held to a high ...

04/28/2014
A Manageable Approach for the Maintenance of Fountain Water
Biogrowth on Noguchi Fountain
 

This talk is part of the Fountain Fundamentals Conference, July 10-11, 2013, Kansas City, MO. A Manageable Approach for the Maintenance of Fountain Water Striegel: Our next speaker today is Robert Krueger. He’ll be talking about a manageable approach for the maintenance of fountain water. Robert Krueger is an Objects Conservator and proprietor of Cascadia Art Conservation ...

04/23/2014
What about Soapstone?
Soapstone marker at Reddies River Cemetery, Wilkes County, NC.
 

If a soapstone marker is in the need of cleaning. I would only recommend the softest of brushes and water, I  have used a baby hair brush with great results. The biggest thing to keep in mind it how very soft this stone is, some soapstones have a value of 1 to 2 on the ...

01/15/2014
Pigment Identification Workshop
JoeBarabe-slider-rotator
 

The National Center for Preservation Technology and Training (NCPTT) and The Hooke College of Applied Science with the McCrone Group, Inc. are partnering to host a three-day hands-on workshop on Pigment Identification and Analysis for fine art and architectural finishes. The workshop will be held February 25-27, 2014 at the NCPTT in Natchitoches, LA. This ...

10/24/2013
Rising Damp Symposium
Rising Damp Workshop
 

NCPTT is a sponsor of the Galveston Historical Foundation’s Center for Coastal Heritage (CCH) two day symposium focusing on the challenges surrounding rising damp on Friday and Saturday, October 25 and 26, 2013.  Reservations for the symposium are $75 per person if purchased before September 30th.  Student discounts are available.  Tickets can be purchased at www.galvestonhistory.org or by calling ...

08/30/2013
Disaster Preparedness and Response for Historic Cemeteries
Tree down in cemetery after a windstorm.
 

Thank you for joining us today.  This is the second day of our webinars on disaster preparedness.  Thank you for those who are returning from yesterday and welcome to those that are coming for the first time.  Luckily, most of you know who NCPTT is, having gone to our web site and found out about ...

08/28/2013
Disaster Preparedness & Response Workshop, September 25 in Natchitoches, LA
fire at kate chopin house
 

The National Center for Preservation Technology and Training and the Cane River Creole National Historical Park will be conducting the third in a series of workshops this summer related to disaster preparedness and response for museum collections. The Lower Mississippi River Delta Region is frequently threatened by natural disasters including hurricanes, floods, and tornadoes. It is important for the ...

08/23/2013
Disaster Preparedness and Response Workshop in Tunica, MS
Tunica Museum
 

Disaster Preparedness and Response for Collections along the Delta Workshop offered in Tunica, Mississippi. On July 23, 2013 NCPTT conservator’s Jason Church (Materials Conservator) and Sarah Jackson (Architectural Conservator) taught a day long workshop at the Tunica Museum. This workshop was offered as part of a Lower Mississippi Delta Initiative Grant from the National Park Service. The ...

08/23/2013
Disaster Preparedness and Response
MacArthur Museum of Arkansas Military History
 

On July 24, 2013 NCPTT conservators Jason Church (Materials Conservator) and Sarah Jackson (Architectural Conservator) taught a day long workshop at the MacArthur Museum of Arkansas Military History. This workshop was offered as part of a Lower Mississippi Delta Initiative Grant from the National Park Service.

08/21/2013
Petrographic Analysis for Conservation
Participants in the 2013 Petrography Workshop
 

Register for this two-day hands-on workshop on the uses of polarized light microscopy for the study of stone and ceramic cultural materials. The workshop will be held March 11-12, 2014 at NCPTT in Natchitoches, LA.

08/12/2013
Scholarships for the Advanced Masters in Structural Analysis of Monuments and Historical Constructions
European Commission Logo
From: WikiCommons
 

Applications for the Advanced Masters in Structural Analysis of Monuments and Historical Constructions, approved by the European Commission within the framework of the Erasmus Mundus Programme, are opened up to August 20, 2013.

07/26/2013
Workshop: Disaster Prep & Response for Collections, July 23 & 24
fire at kate chopin house
 

The Delta Region faces natural disasters frequently from hurricanes, flooding, and tornadoes to name a few. It is important to ensure that collections managers are prepared for natural disasters that frequent the area.

07/03/2013
Conservation Scientist for a Day 2013
Conservation Scientist for a Day 2013
 

Conservation Scientist for a Day One day event offered July 30, 2013 to students who have finished the 8th grade or those who participated in the 2013 NCPTT Robot Camp. $10 per person limited to 25 students STUDENTS WILL INVESTIGATE AUTHENIC POTTERY SHARDS AND PARTICIPATE IN HANDS-ON EXPERIMENTS! Instructors: Curtis Desselles, Carol Chin, Jason, Church, Mary Striegel

05/07/2013
Webinar: Preparing for the Next Disaster
9th Ward Damage after Hurricane Katrina
 

The broadcast for Preparing for the Next Disaster has concluded. Once transcripts and closed captioning have been completed, we will place the videos online. Thank you for your participation. Should you have any questions, please comment on this post or email Sarah M. Jackson. NCPTT offered a free webinar “Disaster Preparedness for Cultural Resources: Preparing You ...

05/03/2013
3D Modeling of a Gravestone
Abate
 

This lecture was presented at the 3D Digital Documentation Summit held July 10-12, 2012 at the Presidio, San Francisco, CA 3D Modeling of a Gravestone Exploiting Low Cost Range and Image Based Techniques Inside the Medieval Museum of the city of Bologna are housed a series of gravestones which originally adorned the tombs of the Doctors belonging ...

04/18/2013
NCPTT helps Girl Scouts earn Save Outdoor Sculpture patch
The Girl Scouts are still all smiles after 3 hours of scrubbing headstones.
 

NCPTT helps Girl Scouts earn Save Outdoor Sculpture patch   On Friday April 5th 24 Girl Scouts from Natchitoches’ Brownie Troop 462 and Junior Troop 1512 came to NCPTT to start their Save Outdoor Sculpture patch. The Save Outdoor Sculpture (SOS!) program is a nationwide effort to identify, document, and preserve America’s sculptural heritage. This long running ...

04/08/2013
NCPTT Staff Receives L