Showing results 1 - 11 of 11
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An NFRC glazing system energy performance label will report U-factor, solar heat gain coefficient, visible transmittance, and air leakage; if the window is ENERGY certified, the ENERGY STAR label will be located next to the NFRC label
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Right – This National Fenestration Rating Council (NFRC) label shows the insulation U-Factor, solar heat gain coefficient, visible transmittance, and condensation resistance for this triple-pane window.
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This home bears a DOE Zero Energy Ready Home label on its front window next to the ENERGY STAR window label.
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