Understanding U-Factor, SHGC, and Energy Ratings for Texas Windows
Choosing replacement windows in Texas is not just about style or curb appeal. In a place like Waco, where west-facing glass can load up a room with heat by late afternoon, the numbers on the label matter just as much as the frame color. The two ratings homeowners hear most often, U-factor and SHGC, tell you different things about how a window handles comfort and energy use. What U-Factor Measures Think of U-factor as a measure of insulation performance. A lower U-fact