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A method for collecting air infiltration data in a large sample of dwellings is presented. The method consists of a tracer gas dilution technique employing air sample bags that are analyzed in a central laboratory. The method will be applied to a Community Services Administration optimal weatherization demonstration in approximately 300 dwellings on 16 sites throughout the United States. The method will yield air exchange rates under typical heating season conditions for each dwelling in the demonstration. Preliminary data on air infiltration rates in low-income housing in Portland, Me. are presented.
air infiltration, air sample bags, energy conservation, measurements, retrofit, sulfur hexafluoride, tracer gas, weatherization
Mechanical engineer, Building Thermal and Service Systems Division, Center for Building Technology, National Engineering Laboratory, National Bureau of Standards, Washington, D.C.,