Do Not Migrate

The Association for Preservation Technology International, with support from NCPTT, will hold another in its series of “hands-on” workshops held at the Taliesin estate of noted architect Frank Lloyd Wright in Spring Green, Wisconsin.



This workshop will address:

  • General approaches to diagnosing existing buildings.
  • Water effects and how to mitigate water runoff from roof top to the surrounding soil.
  • Diagnosing stucco issues.
  • Diagnosing issues with brick and stone masonry.
  • Diagnosing structural issues.
  • Energy considerations with building envelopes.

This workshop targets building owners and stewards, and preservation professionals including architects, engineers, and material conservators.

Attendees will earn 12.5 AIA/CES Learning Units


  • Stephen J. Kelley, AIA, SE, NCARB, Historic Preservation Specialist, Wiss, Janney, Elstner Associates, Inc., Chicago
  • William B. Rose, RA, Senior Research Architect at the University of Illinois
  • Peter Wollenberg, Architectural Conservator, Wollenberg Building Conservation, LLC, St. Louis
  • Alan Dreyfuss, RA, Restoration Architect, Wiss, Janney, Elstner Associates, Inc., San Francisco

More information to come. For updates, visit

National Center for Preservation Technology and Training
645 University Parkway
Natchitoches, LA 71457

Email: ncptt[at]
Phone: (318) 356-7444
Fax: (318) 356-9119