Technical Committee on Modern Heritage 

In the course of the 20th century, the built environment expanded and changed at a pace unprecedented in human history. New philosophies of design and innovations in building technology produced a vast and very diverse body of work that in turn is posinga unique series of challenges as it ages and requires rehabilitation.

The Technical Committee on Modern Heritage (TC-MH) was established in 2006 to promote the understanding and management of this heritage and to explore the full range of philosophical, design and technical issues to sustain this legacy.

The design attributes and material nature of many modern buildings – as well as the urgency of creating the most sustainable possible environment – often suggest rehabilitation solutions that require us to re-think many aspects of traditional preservation practice. The TC-MH therefore takes an active role in the broad and ever- expanding philosophical debate about the changing nature and priorities of preservation, particularly as they apply to the heritage of the recent past. To further advance these goals, the committee promotes scholarship and dialogue concerning the heritage of the recent past.

The work of this committee can only be fully carried out through the efforts of its sub-committees. We seek committed individuals to serve on the following sub-committees:

• Training and Education
• Public Outreach and Social Media
• Technical Research, Innovation and Solutions

Renewing Modernism Video
"Renewing Modernism: A New Paradigm” describes draft “Principals for Practice” developed by APT’s Technical Committee on Modern Heritage in support of the preservation and sustainable reuse of our modern heritage.

Principles for Practice
Initiated as proceedings of the Renewing Modernism Symposium held during APT’s 2015 annual conference in Kansas City, APT's draft "Principles for Practice on Renewing Modernism"  address challenges particular to the evaluation, materials, assemblies and continued functionality of midcentury modern buildings, including those of less than top tier architectural value. Meant to complement existing standards and charters that guide modern properties and heritage conservation practice in general, the principals are now being refined toward fostering broader consensus on approaches that best balance conservation, sustainability and resilience. It is the committee's intent that the guidelines will remain flexible and iterative to assure their continued relevance

Co-Chairs:
Caroline Alderson
Kelly Sutherlin McLeod

Join TC-MH monthly calls every first Thursday of the month, at 4:00 PM ET. For more information contact the committee co-chairs.

TC-MH Information Brochure

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Resources:

Events and Workshops

Facade Tectonics Institute - APT Guest Issue

Exploring Heritage: Building on the Past (March 2024)

Guidelines for the Treatment of Aging Composite Materials and Assemblies:
Proceedings of the APT Seattle 2023 Symposium

ICOMOS ISC20C on Twentieth Century Heritage Madrid Document resource

ICOMOS ISC20C Toolkit resources 

Getty Conserving Modern Architecture Initiative (CMAI) 
Publications include: Bibliographies for Conserving Twentieth-Century Built Heritage, Conserving Concrete Heritage, Meeting reports from the Colloquium to Advance the Practice of Conserving modern heritage, and Conserving Concrete Heritage Experts.