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Upcoming Events
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What is New is Old: Seismic Culture and Engineered Seismic Retrofit
Tuesday, October 7, 2025
2:00 p.m. - 3:00 p.m. ET
This image-extensive presentation will illustrate the link between indigenous and traditional seismic retrofit techniques from different parts of the world and how they relate to the techniques used in historic buildings today.
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Cast Stone: Key Insights into Historic Cast Stone and Replacement Alternatives
Tuesday, October 21, 2025
2:00 p.m. - 3:30 p.m. ET
Cast stone, precast concrete molded and finished to resemble cut natural stone, played a significant role in late nineteenth and early twentieth century architecture in the United States and Canada. This presentation will clarify the differences between the many different names that have been applied to precast materials, review the different cementing agents that have been used, and explain the significant differences in the methods of manufacture that were introduced in the twentieth century.
Learn More and Register
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APT City Gathering: Washington, DC
A Walking Tour and Networking Event on the National Mall
Tuesday, October 21, 2025
Walking Tour: 5:30 – 7:30 pm
Followed by a Reception until 9:30 pm
Hear from preservation experts at the sites of their active preservation projects on the National Mall, starting at Union Square.
The entire preservation community is welcome!
Conclude with a private reception at a roof deck overlooking prominent Mall monuments.
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