Solar heat gain coefficient (SHGC) is the amount of solar radiation transferred through the windows and released as heat indoors. If you want energy-efficient windows, you need to pick those with good SHGC ratings.

Read on to learn about the best SHGC ratings for various homes.

Essential Facts About SHGC

SHGC ratings identify the level of radiation entering your property. Low SHGC ratings mean the windows transmit only a small amount of heat, while higher SHGC mean the windows let more solar radiation into your home. More solar radiation inside your home will help increase indoor temperatures, which can be beneficial to homes in colder climates but disadvantageous to those in warmer regions.

Good SHGC Ratings Depend on Location

Cold regions will benefit from double hung windows with high SHGC ratings. Windows with an SHGC rating of 0.30 to 0.60 will let more heat into your home. The natural warmth they introduce can reduce your heating costs.

Warm and sunny regions need low SHGC window ratings. Southern regions of the country typically have warm climates, so cooling is the top priority. Windows with SHGC ratings of 0.27 or lower will reduce indoor heat and improve cooling.

For regions with mixed climates, such as the Northwest and Midwest regions, SHGC ratings less than 0.40 offer a good balance between heating and cooling, which is essential for properties in these places. Always consult a window professional to ensure you’re getting the right windows for your property.

Whether you’re looking for picture windows or casement windows, Renewal by Andersen® of Sacramento can guarantee products that deliver excellent protection and long-term performance. We also provide top-notch window installation services. To schedule a consultation, call us at (916) 779-5800 or fill out this contact form. We proudly serve clients in Sacramento, CA, and nearby areas.