Independent energy ratings. Informed purchase decisions. NFRC-certified products are independently tested, certified, and labeled to help you make the best purchase decision for your needs. While the ENERGY STAR label tells you if a product is energy-efficient, the...
What higher energy performance means for your home. Higher efficiency, lower energy bills. Windows, doors and skylights may appear passive, but they’re always performing. High-performance products regulate the flow of heat and light that comes in and out of your home,...
National Fenestration Rating Council: Guide to High-Performance Windows, Doors, & Skylights Each year, the average American household spends $1,500–2,500 on energy bills. 45% of that cost is for heating and cooling. Choosing high-performance windows, doors, and...
