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Does Energy Efficiency Increase With More Window Panes?

When tackling a window replacement project, choosing the frame material and the desired style of operation is not enough. You must also consider the number of glass panes the window should have. Some only have one, most have two, and others have three. Many people believe, however, that energy efficiency increases with more glazing.

Does Energy Efficiency Increase With More Window Panes?

That, unfortunately, is not always the case for the most part.

Several Layers of Glass Is Better, But…

Gone are the days where a window unit only had a single pane of glass. It is good enough to provide a view of the outdoors and keep the wind out, but such a fixture is likely to allow weather conditions outside to affect the indoor temperatures. After all, a single glass pane is a poor insulator.

It is the reason why many manufacturers began building windows with either double- or triple-pane glazing. They are huge upgrades, with the latter outperforming the former. Except in extreme climates, the degree of insulation from an additional third pane is barely noticeable.

Whole-Window Performance

Instead of focusing on the individual parts of the window, it is better to tackle what’s more important. At Renewal by Andersen®, we believe our outstanding whole-window performance is a combination of not just glass, but also framing material and professional installation. When you choose us for your window replacement project, you will enjoy many years of energy efficiency, indoor comfort and low maintenance.

Renewal by Andersen of St. Louis installs replacement windows that provide deep, lasting value to your home. Whether you want to change your old windows as part of your home remodeling project or as a plan to sell your home with the hopes of recouping the investment, you can trust our pros to deliver excellent service.

Call us at (314) 332-2364, or fill out our contact form to request a free estimate. We serve St Louis, MO, and the surrounding areas.

Reviews

"The installation crew was very professional and answered what questions I had. And they cleaned up when they were finished. We're very pleased with our windows & patio doors. Highly recommend Renewl by Anderson."

Pamela D
Feb 13, 2023

"Very pleased with installation of six windows and a ProVia entry door. I love the look of the windows and door. I am pleased that my wife is thrilled with the look of the door. She is very pleased that the bronze color fits in well with the color of the brick."

Terry S
Feb 8, 2023

"I just had my Renewal by Andersen windows installed and couldn’t be happier, the entire process went very smoothly. The windows are high quality and look great. But the installers Roy, Zack and Jordan were the stars, they introduced themselves upon arrival walked me thru everything they were going to do and when they finished took me to each window to make sure I was completely satisfied. They were clean and courteous and I would definitely recommend and have them work in my home again."

BOB B
Feb 6, 2023

"Wonderful experience with knowledgeable, competent employees. We had Andersen windows in a previous house & didn’t even consider anything else this time. After replacing our patio door almost two years ago, we replaced all our windows this year. What a difference over builder-grade windows, especially in the really cold temperatures we’ve had this year. Andersen windows may be a little more expensive than other brands, but they are top quality."

Susan S
Jan 31, 2023

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