ENERGY STAR® Recommendations for Window Performance

ENERGY STAR® Recommendations for Window Performance

March 04, 2019

Other than looking at the quality and price of a specific product, taking a look at the National Fenestration Council’s label on windows also a good idea. This is because an NFRC label will give you an overview on how energy-efficient that window or door you’re planning to buy actually is.

ENERGY STAR®, an Environmental Protection Agency outfit primarily focused on aiding individuals and businesses in energy efficiency, has a few tips and recommendations on the superior energy performance of NFRC-certified products.

The U-Factor label will help you gauge how your windows and patio doors will be able to keep heat from escaping a room. A lower number signifies that the product is good at keeping the heat in.

The Solar Heat Gain Coefficient or SHGC focuses on a product’s ability to block heat from sunlight. This can be immensely helpful when you’d like to be cool during the summer season. With the U-Factor label, the lower the number, the better.

You and your windows contractor should also consider the Visible Transmittance as this focuses on the amount of light that will be allowed through. It is measured on a scale of 0 to 1 with the higher the number the more sunlight will be allowed in.

Lastly, the Air Leakage measures how much air the product will be allowed to enter the room. Lower AL value means that there will be less air leakage. Watch out for the numbers 0.1 to 0.3 as this is the range AL values will be based on.

All ENERGY STAR-certified windows and doors bears these NFRC labels. The next time you buy a product and call in a window replacement contractor to help you with the installation, keep these labels in mind as it may have a huge effect on your home.

Call Renewal by Andersen® of Milwaukee today at (262) 522-3034. We offer our services to residents and homeowners in Wisconsin, particularly Milwaukee, WI.

Hear From Our Customers

This was a great crew to work with. Both the original install manager we worked with (Jay) and the install team (Daniel, Mason, Tony, Ethan, and Jose). Everyone was very professional and knowledgable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window with a new bay window, a set of french doors on the patio with a sliding patio door, and our old front door with a new front door and storm door.

I cant express how happy we are with choosing Andersen for our window installation. Our sales representative was knowledgeable with product and answered any questions we had without hesitation. I did also fill out a survey that was sent in an email, but sadly I failed to personally name the two gentlemen that performed the actual installation. Barrett and Francisco were our guys, and let me tell you, they were outstanding!!! They did Excellent work and were professional as well as efficient and made this a smooth, none evasive process for us. I strongly recommend this company and these installers to anyone in need of windows!!! My husband and I could not be more pleased we chose Andersen for replacing our windows!!!

Jason and Brett did an awesome job installing our doors. We had separate installers a month earlier for our windows who also did a fantastic job. They were all very professional and cleaned up almost better than the area looked before the installation! Since these were both jobs that took more than one day the installers were great at keeping us informed on the status of where the project was at along the way.

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Since its founding in 1977, the Alliance to Save Energy has been a leader in energy efficiency policy and advocacy. Over the years, the Alliance’s programs and priorities have evolved as U.S. energy efficiency policy has grown.