Multifamily Buildings and Summertime Humidity

Kohta Ueno is a Principal of Building Science Corporation and has an undergraduate degree in Material Science from the Massachusetts Institute of Technology and a Masters of Applied Science from the University of Waterloo. Over the past few years issues, including persistent summertime humidity, comfort complaints, sweating ductwork, and mold are increasing in recently constructed multifamily units. Problems are often due to a “perfect storm” of factors: from air conditioning sizing vs. cooling load, to poorly configured systems, to outside ventilation system issues to catastrophic air leaks.

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