Temperature and humidity control play a critical role in the protection and preservation of historical documents and resources. Our work includes designing and updating systems that safeguard our national treasures.

Historical Archives

Maryland Historical Society

A new gallery building and expanded research library

Enoch Pratt Free Library

Renovations help protect rare books, special collections, and the Mencken collection

Folger Shakespeare Library

A climate-controlled vault space for the historic First Folios

Georgetown University Lauinger Library

Protecting the university’s special collections, including historical documents

National Academy of Sciences

A major modernization helps protect the resources of “America’s Temple of Science”

Smith Library at Mount Vernon

A destination for scholars of the nation’s first President and the Founding Fathers