WINDOW REPAIR & RETROFIT: STUDIES & RESEARCH

PDF of Report: National Trust

Window Preservation StandardsUsing cutting-edge window testing technology, the Collaborative’s tests are verifying “what most people in historic preservation have known for years, old and historic windows can cost effectively be made as or more energy efficient than new, disposable replacement windows.” “The Effects of Energy Efficiency Treatments on Historic Windows” is an empirical study recently completed by the Center for Resource Conservation in Boulder Colorado. The study involved retrofitting windows in a test home in a historic district and investigated and then compared the energy efficiency and economy of eleven different preservation treatment options with that of new vinyl windows. Most of the proposed treatments were able to outperform a new vinyl window.

 

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