When Choosing Replacement Windows, Does the Solar Heat Gains Rating Matter?

Solar Heat Gains and Losses—What’s the Big Deal?

Not all replacement windows are the same. They don’t have the same glass, and window features can vary greatly, as can the energy-efficient performance of various windows.

Before you select the product you want for your window replacement, take a moment to understand the importance of the Solar Heat Gain Coefficient (SHGC).

Solar radiation is the main way that energy transfers through windows. The windows’ SHGC indicates how much heat transfers through the glass. Too low of a rating, and you won’t enjoy the benefit of solar heat penetration during the winter. Too high of a rating, and your home will take in too much of the heat during the summer.

The SHGC rating is between 0 and 1, and the ideal rating for your home depends on your location, the sun’s direction, and how much shading is on your home. Your window company can help you choose windows with the ideal SHGC rating for your home.

Ideally, you want to find the perfect balance that provides optimal performance in both summer and winter. By doing so, you’ll maximize energy efficiency, take some of the stress off your HVAC system, and enjoy a more comfortable home in every season.


The Southeast’s Trusted Window Replacement Professionals

Paradise Home Improvement installs high-performance windows with premium features like ERG™ Energy Reflective Glass. Our Paradise Super Window™ has earned ENERGY STAR’s Most Efficient Rating, and they provide the money-saving performance you want.

Contact our window company today for a consultation and an accurate cost estimate. Our experienced window installation specialists will take the time to explain all the features of our windows, including SHGC, and help you choose windows that will help you save in every season!