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article_keywords:(SHGC, NFRC, REScheck, IECC) article_title:(SHGC, NFRC, REScheck, IECC)^4
Solar Heat Gain Coefficient (SHGC) measures how well a product blocks heat caused by sunlight.
The NFRC has developed a window energy rating system based on whole product performance.
REScheck versions 4.0.0 and above provides support for IECC 2006. This article addresses questions related to the climate zone system; mechanical equipment for a tradeoff; and compliance with multiple...
Solar Heat Gain Coefficient (SHGC) measures how well a product blocks heat caused by sunlight.
The solar heat gain coefficient (SHGC) for your window may be found on the National Fenestration Rating Council (NFRC) label affixed by the window manufacturer prior to sale.
This article is based on questions regarding Windows asked during the May REScheck Webcast as well as questions received through email.
Inspecting for the Residential Provisions of the 2000 IECC (530 KB)
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The U-factor and solar heat gain coefficient (SHGC) of fenestration products shall be determined in accordance with National Fenestration Rating Council Standards NFRC 100 and NFRC 200 respectively by...