Installing High Efficiency Replacement Windows can be a bit tricky. It’s not something most people do very often and their are a lot of things to consider. We at Galaxy Builders are pros at getting energy efficient windows installed for our customers and educating them along the way.
We do have a couple resources you may consider downloading including our Home Owners Window Guide and our Window Checklist.
We also found this video from Dr. Energy Saver who discusses some basics of energy efficient windows.
“If you are sitting in front of your windows and you feel heat coming in on your skin and warming the surfaces on your house, you do not have high performance glass windows,” Dr. Energy Saver
High Performance Glass makes a Big Difference on Energy Efficiency
High efficiency replacement windows have high performance glass to block the infrared rays from coming through the glass, while letting most of the visible light through. In the winter time, high performance glass prevents heat from the inside of the home to be transferred to the outside as well.
The Process for Removing and Installing Windows
Larry then walked us through the process of removing the existing windows and installing the new, high efficiency replacements− a process that involves careful fitting of the window, and sealing of any gaps around it with spray foam to stop air leakage.
How to Read Energy Efficiency Labels on Windows
The numbers on the labels found on high efficiency windows tell us things like how much air can leak through them and how much visible sun light will pass through.
The Energy Efficiency numbers tell us how much heat can be gained through the window and the most important measurement the U-Factor tells you how energy efficient the window is when you add up the high performance glass panes and the frame; the lower the number, the better.
High efficiency windows can have a U-Factor as low as 0.15, but the windows installed in this project had a 0.29 U-Factor a significant improvement from the old windows, which might have had a U-Factor of 0.80 at best.