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A New Way to Reduce Multifamily Air Leakage

Fall 2017
A version of this article appears in the Fall 2017 issue of Home Energy Magazine.
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August 06, 2017
While tight exterior envelopes have become standard for single-family homes, they have been slow to reach the multifamily sector. Multifamily buildings have many of the same leakage paths as houses, as well as additional paths hidden in walls or other cavities that are difficult to seal with conventional methods. Researchers at the Western Cooling Efficiency Center (WCEC) at the University of California at Davis recently developed an aerosol sealant to seal leaks in building walls, floors, and ceilings. The process can bemore effective and convenient than conventional methods for sealing envelopes, because it requires less time and effort, and it seals the leakage area more quickly.

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