APT-NCPTT Technical Publications
The National Center for Preservation Technology & Training (NCPTT) has supported APT to produce technical resources on a variety of topics, in both print and webinar format. Collected below are papers and a growing webinar series.

New Publication: Improving Rehabilitation Codes for Historic and Existing Buildings
After two years of work and thanks to funding provided by NCPTT (the National Center for Preservation Technology and Training), APT’s Committee on Codes and Standards released “Improving Rehabilitation Codes for Historic and Existing Buildings,” a 110 page digital publication. This document provides detailed information to advance modifications to the model construction codes in the U.S. that can better serve historic and other existing buildings.
Previous Publications
Draft Code for Historic Buildings (2000)
A Grading Protocol for Structural Lumber and Timber in Historic Structures (2009)
Mechanical Anchor Strength in Stone Masonry (2008)
Understanding Traditional and Modern Paints and Stains for Exterior Wood (2014)
APT-NCPTT Materials Video Library
The Association for Preservation Technology (APT) and the National Center for Preservation Technology & Training (NCPTT) are pleased to share the first results of their current collaboration, producing a video series on building materials. The first three recordings are “Laboratory and Field Studies,” “Stained Glass,” and “Architectural Coatings.” Nine more presentations are under development with leaders in their respective specializations.
Architectural Coatings in a Historical Context Mary Jablonksi, Jablonksi Building Conservation, Inc.
Conservation Issues in American Stained Glass Julie Sloan, Julie L. Sloan, LLC

Laboratory and Field Studies of Concrete and Mortar Karla Salahshour, Wiss, Janney, Elstner Associates, Inc.

Funding Partner
This recorded content is made possible through the generous support of the National Center for Preservation Technology & Training.
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