Guidelines for Infiltration Reduction in Light-Frame Structures

摘要

Interest in reducing infiltration, i.e., the uncontrolled leakage of air into buildings, has intensified as energy costs increase. Reducing infiltration has other benefits as well as reducing energy use in buildings. Thermal comfort increases, noise transmission through the building envelope decreases, and moisture problems caused by convection of water vapor through leakage sites are reduced. A review is presented of field measurements of infiltration and techniques that designers and builders are currently using to reduce air leakage in residences. Since infiltration is generally the only source of ventilation air in residences, also discussed is the relationship between tight buildings and indoor air quality. (ERA citation 07:007759)