NFRC Ratings Provide Objective Way For Comparing Window Brands and Models
The National Fenestration Rating Council (NFRC) has developed an objective way for homeowners to determine the energy-saving properties of one brand or model of windows against another. The NFRC is a nonprofit, quasi-private organization created by the window, door, and skylight industry. Membership includes manufacturers, suppliers, researchers, architects, designers, code officials, utilities, and government agencies. The window energy rating system is based on whole-product performance....