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

National Fenestration Rating Council Nashville TN

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.

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“The entire team especially our installers were amazing. They were so friendly, thorough and knowledgeable. They double checked everything and made sure everything was perfect before they left, and no mess left behind. I’m very happy with my new shower!”
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"American Home Design has been so wonderful! Even after having our system for 6 months now, they still follow up with us to make sure we are still happy with our system to make sure everything is still working properly. I’ve never had anyone from any company stay in contact like that to make sure we are satisfied."
Lindsay L.
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"The team was fantastic! Personable and professional at the same time, cleaned up any mess left over from the work done, and was super accommodating. We will definitely be calling them for any future home improvement needs."
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Visit Our State-of-the-Art Showroom!

In our Goodlettsville showroom, you can see:

  • Bathtubs & Showers
  • Walk-in Bathtubs
  • Replacement Windows
  • Patio Cover
  • Pergolas
  • Entry & Patio Doors

Showroom Hours:

Monday-Friday: 8am-5pm
Saturday: 10am-5pm
Sunday: Closed
American Home Design Showroom

We are located at 880 Conference Drive in Goodlettsville – 1 mile north of Rivergate Mall.