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Measurements of air infiltration and airtightness in passive solar homes.

Persily A K, 1984
passive solar buildings | air leakage | air tightness | blower door | pressurization testing | tracer gas measurement
Bibliographic info: Measured air leakage of buildings. A symposium on performance of building constructions, Philadelphia, 2-3 April 1984. ASTM Special Technical Publication 904. Edited by H R Trechsel and P L Lagus. ASTM, 1986. p46-60. 4 figs, 3 tabs, 20 refs.
Languages: English

The airtightness of 82 passive solar homes located throughout the United States was studied using tracer gas measurements of air infiltration and pressurization testing. The air infiltration measurements employed the tracer gas decay technique in a low-cost mode employing air sample bags and off-site infiltration determination. The infiltration rates measured under natural conditions ranged from about 0.05 to almost 2 air changes per hour (ACH). The pressurization test results ranged from 1 to more than 30 ACH at 50 Pa, with an average of about 10 ACH. By comparing the pressurization measurements on these homes to measurements on other homes, the passive solar homes were found to be in general no tighter than other U.S. homes. The air infiltration and pressurization measurements of the Class B homes were compared using existing infiltration models and other empirical relations.


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