What Does it mean if Windows are Rated by the National Fenestration Rating Council (NFRC)?

The National Fenestration Rating Council (NFRC) is an American non-profit organization that sponsors an energy efficiency certification and labeling program for windows, doors, and skylights. While an Energy Star 6.0 certification denotes that a particular window or door is considered to be “energy efficient” in a general sense, the NFRC provides more specific information in five performance categories, including:

• U-value – the rate of the transfer of heat through the window or door unit
• Solar Heat Gain Coefficient (SHGC) – the amount of solar heat a unit transmits
• Visible transmittance – the fraction of the visible light spectrum that a window transmits
• Air leakage – the measure of air infiltration through a window or door
• Condensation resistance – how well a window resists the formation of condensation

With these specific, detailed measurements of performance, homeowners and builders alike are better able to compare different brands of replacement windows and doors to determine which products might work best for their homes or the homes of their customers.

Premium Replacement Windows & Doors by American Home Design

For all your window- and door-related questions and concerns, American Home Design is the company to turn to. We’ve been serving homeowners in Nashville, Tennessee, and surrounding areas since 1977, providing top-of-the-line replacement windows and doors, expert installation service, and friendly customer care. So, if you’re ready to increase the comfort and energy efficiency of your home, and want to work with a company that is dedicated to exceeding customer expectations, contact American Home Design and schedule your complimentary in-home consultation today. Our product specialists will be happy to review the NFRC ratings of our products with you and help you decide which windows and doors would be most ideal for your home.

For more information about our premium replacement windows and doors and their NFRC ratings, contact American Home Design today. We proudly serve homeowners throughout the Nashville area.