Schedule a Free Consultation

Everything You Need to Know About Your Windows’ SHGC Rating

When shopping for energy-efficient windows, make sure you understand their energy performances ratings. These are essential in selecting which window units are a perfect fit for your home and for the region where you live. Today’s blog focuses on one of the most important ratings to look out for, which is the solar heat gain coefficient (SHGC).

Energy-efficient Windows

What Is the SHGC?

The SHGC is an energy performance rating that refers to the ratio of solar radiation passing through the whole window assembly composed of the glazing, window frame and spacers separating the glass panes. It ranges between 0 and 1, with the latter indicating the maximum amount of solar heat allowed.

Why Consider the SHGC Rating?

Knowing how windows behave relative to sunlight and solar heat allows you to choose the most appropriate units for your home, which often depends on the local climate. For instance, windows that allow for a larger amount of solar heat to pass through work well in regions where extra warmth coming from the sun is deemed beneficial.

What’s the Best SHGC Rating for Your Windows?

Discussing the matter of energy performance with your windows installer helps determine the exact SHGC rating for the replacement windows you are going to purchase. Generally speaking, however, an SHGC rating of less than 0.40 is recommended, especially in the Midwest where both heating and cooling are required.

Other factors to consider when determining the most favorable SHGC ratings for your replacement windows include your home’s orientation and external shading. There are other energy performance ratings you should also consider, including the U-factor, air leakage and visible transmittance.

At Renewal by Andersen® of Southwest Missouri, we offer high-quality ENERGY STAR® windows that help slash your energy bills. With features like High-Performance™ Low-E4® glass and Fibrex® framing material, you can enjoy consistent indoor comfort while saving on energy. Call (417) 268-9301, or fill out our contact form to schedule a free consultation.

Reviews

"Renewal by Anderson is definitely the way to go for replacement windows. A representative will come out to your house to discuss window replacements, their Fibrex windows, and cost. You do not have to do all the windows at the same time. We chose only to do 10 windows at this time. The price quoted is good for a full year. A few days later another Representative will come out to expertly measure all windows you are choosing to replace. These measurements are sent to the Renewal by Anderson Factory, where your replacement windows are made. Soon after your order has been processed an installation crew shows up with your replacement windows. Renewal by Andersen is excellent in keeping the customer informed from the start of the process to the final installation. We had a crew of 5 that took 2 days for 10 windows. They were definitely top-notch and you could immediately tell they had been installing windows for quite some time. They were definitely prepared for any situation that came up during your window replacement. One window had evidence of past termite infestation. The wood had to be replaced before the installation of our new window. I generally keep an infrared space heater in that room because of all the 5 bay windows. After our new windows were installed, WOW no heat loss. The room no longer felt cooler than the rest of the house. The windows look fantastic. The outside screens are virtually invisible. We love our new windows. You won't be disappointed!!"

Loren Connelly
Nov 17, 2023

"Just had my windows installed. Love them! Wonderful and easy people to work with! Well worth the money! My installers were great! They cleaned up everything and were amazing!"

Sue Waterman
Nov 16, 2023

"Every employee I have met in this company has been very kind and nice to speak with (even when I'm out of town and have to tell them I'm waay out of their zone for promotions lol!) Customizing the front door was fun, and I'm very happy with the end result of a brand new door frame that is sealed well and closes so quietly and smoothly! The frosted glass window panels top to bottom really let in an awesome amount of natural light. The manufacturing process went well with lots of updates along the way, and the salesperson was able to answer every question I had about financing. Can't wait to start upgrading the windows next! As a first time homebuyer I feel very secure in knowing I can call the company and they will make sure their product stays up to their quality standards. They are going to help this 105 year old house stand strong for another 100!"

Kelsey Phelps
Nov 2, 2023

View All Reviews