Feb 19, 2021

A Word About Solar Heat Gain Coefficient

Home window replacement can leave property owners feeling flustered because of the terminology that one must understand to make an informed purchase.  One such piece of jargon related to replacing your home’s windows is solar heat gain coefficient (SHGC).  Allow us to break down this term into easy-to-understand language.

What Is Solar Heat Gain Coefficient?

In layman’s terms, SHGC is the volume of the sun’s energy that converts into heat as it filters through your home’s windows.  It’s a measurement that window energy performance ratings consider.  A higher solar heat gain coefficient rating equates to a more sizable amount of sunlight allowed into a home.  The highest SHGC rating is one and the lowest SHGC rating is zero.

infinity double hung window

Does Solar Heat Gain Prove Problematic In A Home?

In the winter months, solar heat gain can be advantageous because it can raise the temperature of a room without having to adjust a home’s thermostat.  However, in the summer months, solar heat gain can be problematic because it can elevate a temperature of a room unnecessarily.

Pick A Solar Heat Gain Coefficient Range For Your Climate

The SHGC rating of the replacement windows you select for your home should be reflective of the climate you live in.  In southern states, a lower SHGC is preferable because of how warm air temperatures tend to be throughout the year.  Having windows with a higher SHGC can be advantageous in the Midwest, like Wisconsin and Minnesota, because of how cold winter temperatures can be.

Infinity® From Marvin Windows Have An Exemplary SHGC For The Midwest:

Window Energy Performance Ratings Should Reflect Your Home:

A reputable window contractor should be able to easily explain the SHGC rating they suggest for various areas of your home.  For example, a low SHGC often makes sense in eastern and western facing rooms within a home because they are exposed to a prolonged period of sunlight in the summer months.  The utilization of a low solar heat gain window can lessen cooling costs without making a heavy dent on heating costs.  In the winter months, when heat is desirable, high solar heat gain windows work well on south-facing walls and will lower heating costs without making a dramatic increase on a home’s cooling costs.

View Our House Window Installation Projects:

Lindus Construction Window Replacement Reviews:

"To me Lindus mean quality in every job they do. Over the years I’ve had them replace skylights, replace windows, completely rebuild a window bay, install gutters, and most recently put on a new roof and hail-damaged gutters."

Jeannine C.
Apple Valley, MN
September 1, 2022

"Window quality and trim work is fabulous. Matches so well!"

Becky C.
Hammond, WI
August 18, 2022

"Great job installing new windows!"

Dick S.
Shoreview, MN
June 2, 2022

"Thank you for a job well done.  We are very impressed with our new windows."

Bill & Gini R.
Maple Grove, MN
May 27, 2022

"Very professional and great work! I am having quite a few more windows put in next year."

Amy M.
Woodbury, MN
May 20, 2022

"I need to tell you how totally pleased we were with Lindus. The whole experience was top shelf!! Several neighbors have already asked about you guys and we’re happy to see endorse your company."

Judy L.
Minnetonka, MN
May 12, 2022
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