The National Fenestration Rating Council (NFRC) is the trusted, independent, nonprofit certification body for the energy performance of windows, doors, and skylights.

Mar 3, 2025 · One of NFRC's main functions is to promulgate technical standards that establish uniform procedures for determining the various energy performance ratings, including U-factor, Solar Heat …

The National Fenestration Rating Council (NFRC) is a United States 501 (c)3 non-profit organization which sponsors an energy efficiency certification and labeling program for windows, doors, and …

Simply filter by the product type and features you’re interested in, and the NFRC Certified Product Directory provides a list of NFRC-certified products that match your criteria so you know which …

Directory Search NFRC Codes

NFRC certification gives consumers the assurance that your product has been rated by the world's foremost expert in window, door, and skylight performance, in addition to ensuring compliance.

The National Fenestration Rating Council (NFRC) is the trusted, independent, nonprofit certification body for the energy performance of windows, doors, and skylights.

This web site is optimized for a display resolution of 1024x768, and requires Microsoft Internet Explorer 5.0 or higher. Using older browsers, non-compatible browsers ...

The National Fenestration Rating Council (NFRC) is the trusted, independent, 501 (c) (3) nonprofit certification body for the energy performance of windows, doors, and skylights.

NFRC certification gives consumers the assurance that your product has been rated by the world’s foremost expert in window, door, and skylight performance, in addition to ensuring compliance.