Myths About Building Envelopes.
Myths About Building Envelopes.
(1260 K)
Persily, A. K.
ASHRAE Journal, Vol. 41, No. 3, 39-47, March 1999.
Sponsor:
Department of Energy, Washington, DC
Keywords:
building envelope; commercial buildings; institutions;
airtightness; air quality
Abstract:
It is often assumed that commercial and institutional
buildings are fairly airtight and that envelope air
leakage does not have a significant impact on energy
consumption and indoor air quality in these buildings.
Furthermore, it is asumed that more recently constructed
buildings are tighter than older buildings. However,
very little data is available on the airtightness of
building envelopes in commercial and institutional
buildings.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899