Choosing windows and doors with NFRC certification is one of the most effective ways to achieve lasting energy savings and superior comfort in residential or commercial projects. The National Fenestration Rating Council (NFRC) provides an independent, third-party verification of key performance metrics—U-factor, Solar Heat Gain Coefficient, Visible Transmittance, Air Leakage, and Condensation Resistance. These ratings give architects, builders, and homeowners clear, reliable data to compare products and ensure they meet stringent energy-efficiency goals.

NFRC-certified products are engineered to reduce heat loss in winter and minimize solar gain in summer, directly lowering heating and cooling costs while improving indoor comfort. Their documented performance supports compliance with international building codes, ENERGY STAR® standards, and green-building programs such as LEED, making them a smart investment for sustainable construction.