Abstract:Energy codes and standards allow multiple paths for compliance. This paper addresses the prescriptive approach only, which stipulates minimum R-values of building enclosure insulation, fenestration thermal performance requirements, and maximum building envelope air leakage rates. Recent changes within energy codes and standards commonly reflect a “more is better” strategy regarding building envelope performance (e.g., wall and roof insulation). However, is this a sound strategy due to the diminishing energy sa… Show more
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