Investing in energy-efficient windows allows you to achieve better savings out of your monthly utility bill. They feature components that limit heat transfer and ensure consistent indoor comfort, from double glazing to inert gas fills. Before you shop for them, however, you must know about its energy performance ratings. These are essential in choosing which windows are the perfect fit for your home and for the local climate where you live.
One rating to look out for is the solar heat gain coefficient or SHGC. Sanders Roofing & Exteriors, LLC, one of the leading window replacement contractors in the area, discusses more.
About the SHGC
The SHGC is the ratio of solar radiation passing through your window. Its value ranges between 0 and 1; with the latter indicating the maximum amount of solar heat allowed. This applies to the entire window assembly, which is composed of the glazing, window frame, and spacers that separate the glass panes.
Before you make your purchase from local suppliers or window companies, be sure to check the label affixed to them. The National Fenestration Rating Council (NFRC), which is behind the label, evaluates the energy performance of each window product using not just the SHGC, but also the U-factor, air leakage and visible transmittance. The information in the label allows you to compare brands and make informed decisions regarding your home’s overall energy efficiency.
What Is the Best SHGC Rating?
There is no such thing as the “best” SHGC rating. Your home’s climate, orientation and external shading will determine the most favorable SHGC for certain replacement windows. If you live in an area that requires adequate heating during the winter, you need a window with an SHGC rating close to 1. Conversely, a window with an SHGC rating close to 0 is more suitable for households in need of cooling, especially during hot and humid summers.
To help you make the most of your window replacement project, turn to the experienced window installers at Sanders Roofing & Exteriors, LLC. We carry window brands to fit every design and budget need and are available in a wide variety of styles and colors to add beauty to your home. Learn more by calling (512) 590-0748 or filling out our contact form to schedule a consultation.