ABOUT NFRC

The National Fenestration Rating Council (NFRC) is an independent non-profit organization that rates & labels fenestration products for energy performance. The NFRC’s goal is to provide fair, accurate, and reliable energy performance ratings. These ratings can be a valuable tool, much like the miles-per-gallon sticker on a new car, because they can help you with:

•  Product comparison: Compare different products and make informed product choices.

•  Building codes: Determine if a product meets building codes.

The NFRC communicates this information via a label that is placed on each fenestration product. Precision Entry & Sugarcreek Industries goal is provide you with a simple, easy to understand NFRC label. See an example of our label below.

Label terminology:

• U-Factor: U-factor measures how well a product prevents heat from escaping. The rate of heat loss is indicated in terms of the U-factor of a window assembly. U-Factor ratings generally fall between 0.20 and 1.20. The insulating value is indicated by the R-value which is the inverse of the U-factor. The lower the U-factor, the greater a window's resistance to heat flow and the better its insulating value.

• Solar Heat Gain Coefficient: Solar Heat Gain Coefficient (SHGC) measures how well a product blocks heat caused by sunlight. The SHGC is the fraction of incident solar radiation admitted through a window, both directly transmitted, and absorbed and subsequently released inward. SHGC is expressed as a number between 0 and 1. The lower a window's solar heat gain coefficient, the less solar heat it transmits.

• Visible Transmittance: Visible Transmittance (VT) measures how much light comes through a product. The visible transmittance is an optical property that indicates the amount of visible light transmitted. VT is expressed as a number between 0 and 1. The higher the VT, the more light is transmitted.