Building Envelope

Buildings represent 39% of U.S. energy consumption and 38% of U.S. CO2 emissions

As a thermal barrier, the building envelope plays a critical role in regulating interior temperatures and helps to determine the amount of energy required to establish a comfortable indoor environment. In commercial buildings, the space heating, cooling, and ventilation that maintain that environment account for 34 percent of energy used on site and 31 percent of primary energy use, according to the U.S. Department of Energy. By evaluating technologies such as “smart windows” and “high R-value windows,” which directly influence HVAC requirements, the GPG program is finding ways to make the building envelope more efficient.

Published building envelope findings

The GPG program, in association with federal laboratories, has subjected the following technologies to real-world measurement and verification in GSA buildings. Links to published results are listed below.

*M&V results demonstrate deployment potential for GSA

Emerging Building Technologies’ two programs — Green Proving Ground (GPG) and Pilot to Portfolio (P2P) enable GSA to make sound investment decisions in next-generation building technologies based on their real-world performance.

Last Reviewed: 2021-07-09