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

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