Understanding Window Energy Performance Labels
If you’ve recently purchased new windows or are shopping around for window replacements in Denver, you may have noticed a small white label on the corner of your window. This label is known as a NFRC label. It’s purpose is to inform consumers about the energy performance of a window, which the label breaks down into four different categories: U-Factor, Solar Heat Gain Coefficient, Visible Transmittance, and Air Leakage. All windows with NFRC labels are tested and certified, the purpose of which is to allow consumers to make the best decision when comparing window options.