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What is the National Fenestration Rating Council (NFRC)?

April 26, 2017council fenestration National nfrc rating

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What is the National Fenestration Rating Council (NFRC)?

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The NFRC is an independent, third-party certification organization with industry-accepted standards for evaluating and certifying energy performance. The NFRC Certificate contains U-factor, SHGC (Solar Heat Gain Coefficient) and VT (Visible Transmittance) values. These values form the basis for the ENERGY STAR® Door and Window Program.