Our replacement windows can improve your home’s energy efficiency and make it more comfortable. You can easily see this by examining their excellent NFRC ratings. The National Fenestration Rating Council (NFRC) independently tests windows and assigns them a rating based on their performance. Understanding these ratings will help you select the best window for your home. Here’s how:
The NFRC label provides ratings for U-factor, Solar Heat Gain Coefficient and Visible Transmittance. The U-factor measures how well a window can prevent heat from escaping your home. Compared with the R-Value, this is more than a measure of conductance and resistance. It takes convection and emissivity into account, as well. U-factor ratings typically range from 0.15 to 1.20. A low U-factor rating means that the window is better at keeping heat inside your home. This rating is important for homes that experience cold winters.
Solar Heat Gain Coefficient
This measures how well your window can reflect heat from the sun. The SHGC value is a number between zero and one. Low values mean that the window is better at blocking solar heat. This value is important for homes that suffer from hot and harsh summers. In particular, we recommend our picture windows for homes like that. These non-operable windows reflect heat and trap air conditioned air inside the home, keeping occupants cool.
This measures how much light enters through your windows. It is also a value between zero and one. The higher the VT, the higher the window’s potential for daylighting. Renewal by Andersen® windows have a good VT rating. Our windows have a spectrally selective multi-layer low emissivity coating. This maximizes the amount of visible light while minimizing the amount of heat that enters through your window.
Renewal by Andersen of New Mexico can install energy-efficient casement, picture, double-hung, specialty, bay, bow, and sliding windows. All of our windows have great performance ratings. During our consultations, we will recommend the most energy-efficient window types depending on your home’s location. We serve many areas, including Albuquerque, Rio Rancho, and Santa Fe. Call us at (505) 395-5120 to learn more about our energy performance ratings. You can also ask for a free estimate.