…and why should I care??
Solar Heat Gain Coefficient (SHGC) is the measurement of how much heat from the sun is transmitted through something like a door or window–also known as fenestration. Zero is the lowest SHGC value and one is the highest.
Any SHGC value can be directly converted to a percentage to measure heat passage. For example, a window that has a SHGC of .40 will allow 40 percent of the sun’s heat to pass through. How much heat is transmitted on the window rating sample below?
In Texas, you’re going to want the lowest number possible, usually aiming for SHGC in the .20’s. The federal government was giving tax credits back in 2009 and 2010 for .30 and under. Unfortunately that program has ended, but it’s a great rule of thumb to shop by. Austin Pro Siding, Windows & Roofing is proud to offer Simonton, Don Young and Andersen Series 100 replacement windows that will meet or exceed that new .30 and under standard in energy efficiency.
Call (512) 550-0000 for your free, no-hassle quote. We proudly serve the greater Austin community.
