The NFRC Label
There are tools to help you find a retailer who understands NFRC rated windows and window products near you.
The National Fenestration Rating Council (NFRC) provides window and door retailers with fact sheets that can be used to educate their customers at the point of purchase.
The fact sheets explain how to interpret the values found on the NFRC energy performance rating label, which is displayed on many products. You can also use the ENERGY STAR ® Store Locator tool to locate a store that provides windows and window products with the NFRC label.
Below you will see an infographic that includes an example of what an NFRC label looks like. This label should remain on your window until after the final inspection. You should keep these labels for your records.
The U-factor, Solar Heat Gain Coefficient (SHGC) and Visible Transmittance (VT) are all tests that are required by ENERGY STAR®. Air Leakage and Condensation Resistance ratings are optional and manufacturers are not required by NFRC to test their products for these.