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Title: Flexible Residential Test Facility: Impact of Infiltration and Ventilation on Measured Heating Season Energy and Moisture Levels

Two identical laboratory homes designed to model existing Florida building stock were sealed and tested to 2.5 ACH50. Then, one was made leaky with 70% leakage through the attic and 30% through windows, to a tested value of 9 ACH50. Reduced energy use was measured in the tighter home (2.5 ACH50) in the range of 15% to 16.5% relative to the leaky (9 ACH50) home. Internal moisture loads resulted in higher dew points inside the tight home than the leaky home. Window condensation and mold growth occurred inside the tight home.
Publication Date:
OSTI Identifier:
Report Number(s):
Resource Type:
Program Document
Research Org:
EERE Publication and Product Library
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B) (Building America)
Country of Publication:
United States
DOE/GO-102013-4041; NREL/SR-5500-60118; September 2013; infiltration; building air leakage; internal moisture gains; residential; Residential Buildings; BA-PIRC; Building America