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CR 11: Air Leakage of U.S. Homes: Model Prediction

McWilliams J.,Sherman M.H. , 2008
AIVC | CR
Bibliographic info: AIVC Contributed Report 11, 2008, 76 pp
Languages: English Pages (count): 76

Air tightness is an important property of building envelopes. It is a key factor in determining infiltration and related wall-performance properties such as indoor air quality, maintainability and moisture balance.

Air leakage in U.S. houses consumes roughly 1/3 of the HVAC energy but provides most of the ventilation used to control IAQ.

The Lawrence Berkeley National Laboratory has been gathering residential air leakage data from many sources and now has a database of more than 100,000 raw measurements.

This paper uses a model developed from that database in conjunction with US Census Bureau data for estimating air leakage as a function of location throughout the US.


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