What is a Solar Heat Gain Coefficient?
The SHGC is a measurement of solar heat radiation that is transferred or absorbed through a window and then released into your home. SGHC refers to a window’s or door’s ability to shield solar radiation by means of Low-E coatings, argon gas fills, and any other methods such as tinting. The rating for the solar heat gain coefficient is expressed as a number between 0 and 1. The lower a window’s or door’s rating, the less solar energy it transmits, and the more effectively that window or door will insulate and protect your home from heat gain.
