Window Performance Ratings
If you have been in the market to replace the windows in your home, there are some things that are good for you to know. The NFRC certification label. This label verifies conformance with the standards that have been set by the National Fenestration Rating Council. These ratings provide detailed information in regards to the performance factors that are listed in four different values.
- U-Factor: The lower the number the better the heat retention. The scale ranges from 0.20 to 1.20.
- Solar Heat Gain Coefficient: Measures how well a window can resist unwanted solar heat gain. Range is from 0 to 1. The lower the number the less you spend on cooling in warmer temperatures.
- Visible Transmittance: Measures how well a window will light your home with daylight. The higher the number the more light that is transmitted.
- Air Leakage: Indicates how much air might be allowed through the cracks in the window assembly. The lower the rating the less air that will pass through the cracks in the window.
Energy Star Label
- Certified and verified to perform at levels that meet or exceed energy efficient guidelines. An Energy Zone climate zone map can help you choose the right windows for the climate that you are located in.
Nesco Construction has replacement windows available that come in either white or tan frames with low-e glass. The window frames are constructed of vinyl.
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