California Energy Consultant Service

Energy performance ratings in windows exist to help homeowners make informed purchasing decisions. If you are shopping for new windows, you can easily check them out on the label. One of the notable ratings is called solar heat gain coefficient or SHGC. California Energy Consultant Service, your trusted window replacement contractor, explains everything you need to know about it. 

What Is the Use of SHGC Ratings?

When buying replacement windows, you need to consider the SHGC rating. This way, you can save money on monthly energy bills while also making your home more comfortable. Windows that allow a large amount of solar heat to pass through, for instance, are best installed in cold climates where extra warmth can be beneficial. 

The SHGC rating is best described as a ratio where 1 is equal to the maximum amount of solar heat allowed through a window, while 0 is equal to the least amount allowed through. So, a SHGC rating of 0.30 means a window allows 30% of the available solar heat. 

What Is the Best SHGC Rating for Your Location?

Depending on where you live, you need to find windows that have the appropriate SHGC ratings for optimal home performance and energy efficiency. In warmer climates, especially those in southern regions, windows with an SHGC rating of less than 0.27 are more ideal. Due to the area’s predominantly warm climate, homeowners there should keep their indoors cooler for longer periods to ensure comfort. In colder regions, on the other hand, it’s better to have windows with an SHGC rating between 0.30 and 0.60. These windows help warm your home naturally. For this reason, you lower your reliance on your heating system, reducing energy costs.

In mixed climates, meanwhile, homeowners typically use both heating and cooling, although cooling is often used less. For this reason, windows with an SHGC rating of less than 0.40 are recommended. If air conditioning costs are usually high during warm months, however, windows with an SHGC rating of less than 0.30 can be more beneficial. These windows are also ideal for areas where heating may be used extensively during cool months. To determine the best SHGC rating, be sure to take note of your cooling and heating costs. 

As one of the most trusted window repair and replacement companies in Sacramento and Rancho Cordova, CA, California Energy Consultant Service is committed to providing premium sales and installation. At your free consultation, our specialists will help you identify the best solutions. Expect us to conduct an energy assessment to determine the best SHGC rating for your new windows. Call us today at (916) 993-5000, or fill out our online contact form to set an appointment.