Article #117 - What is the NFRC?

The National Fenestration Rating Council (NFRC) is a nonprofit, public/private organization created by the window, door, and skylight industry. It is composed of manufacturers, suppliers, builders, architects and designers, specifiers, code officials, utilities, and government agencies.

The NFRC label provides a reliable way to determine window energy properties.

The NFRC label lists window energy properties so that builders and consumers can compare products. The NFRC label appears on windows, doors, and skylights verified by NFRC standards. The label gives ratings for the U-Factor, the Solar Heat Gain Coefficient (SHGC), Visible Light Transmittance (VT), Air Leakage (AL), and Condensation Resistance (CR).