What Is a Great SHGC Rating for Your New Windows?

Whether you’re planning a wood or vinyl window installation, there are a few things to consider first, such as the solar heat gain coefficient (SHGC) rating. This rating measures how much solar radiation your windows allow into your home, directly affecting your energy efficiency and comfort level. Trusted home improvement contractor Timberland Exteriors explains what makes a good SHGC rating for your new windows.

Understanding SHGC

The SHGC rating, which is expressed as a value between 0 and 1, indicates how much solar energy is transmitted through a window. The lower the SHGC, the less solar heat it transfers, which helps to keep your home cooler in the summer. On the other hand, a higher SHGC can be beneficial in the winter by allowing more solar heat to enter, warming your home.

Ideal SHGC Rating for New Windows

For homes that get a lot of sunlight, a lower SHGC window of less than 0.40 is the way to reduce cooling costs. However, for residents of Minnesota, a higher SHGC could be beneficial where the weather tends to be colder. As such, it’s best to install windows between 0.30 and 0.60 SHGC ratings.

While SHGC is important, don’t forget other energy performance metrics when shopping for windows, including the U-factor and visible transmittance (VT). The former measures the heat transfer rate, while the latter indicates how much visible light passes through the window. Together with SHGC, these ratings provide a complete picture of a window’s energy efficiency.

Turn to Us for Your Window Replacement Needs!

For your window installation project in St. Paul, MN, and the surrounding areas, look no further than Timberland Exteriors! Our experienced team also offers top-quality exterior solutions, from vinyl siding installation to storm damage restoration. For a consultation, complete our online form or call (651) 439-1760 (Maplewood) or (218) 849-6675 (Detroit Lakes).