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Air Leakage 101: Essential Facts That You Need to Know

When looking at your choices of replacement windows, it’s important to consider things such as solar heat gain coefficient (SHGC) and U-factor. These ratings can tell you enough about a window’s energy efficiency. But apart from these two major considerations, you should also look into a window’s air leakage rating.

Air Leakage

Why Is Air Infiltration Important

It’s a common misconception that new windows shouldn’t be letting any air inside your home. After all, aren’t replacement windows supposed to get rid of draft problems? While it’s a fact that new windows can help solve draft issues in your home, this does not mean that air won’t be able to pass through the windows. It does not mean that your new windows would actually be letting huge amounts of air into your home either.

Air leakage, or air infiltration, is simply the measurement of air that passes through the window itself. This is usually determined prior to installation, and it must be maintained once the window has been installed in order to prevent drafts. 

How to Fix Air Leaks

If you suspect there are drafts or air infiltration issues in your home, it’s best to have a professional carry out a thorough inspection. Typically, such problems in windows or sliding patio doors can be fixed by sealing the leaks.

For windows, caulking and new weatherstripping can make a big difference and really tighten up your old windows. Meanwhile, for doors, it’s best to update the old weatherstripping.

In severe cases where sealing might no longer work, replacing your windows or doors would likely be necessary. Consult experts so that you can get a comprehensive view of your options.

Renewal by Andersen® of St. Louis is a local company that offers a range of replacement windows as well as sliding patio doors and French doors. With our knowledge and expertise, we can guarantee materials with excellent quality and top-notch craftsmanship. 

Call us at (314) 332-2364, or fill out our contact form to schedule a free consultation. We serve homeowners in St. Louis, MO, and the surrounding communities.

Reviews

"We recently had all our windows and doors replaced by Andersen. The installers were so professional and explained the whole process. It was quick and they did a very good job. We are so pleased with our service and they made our home look new again!"

Reagan Kelly Skaggs | RBA OF ST. LOUIS, MO - MARYLAND HEIGHTS
Apr 12, 2022

"The installation team did an incredible job with our new windows. That showed up on time and did some of the best finishing work I have seen. The service reps called at every step from initial order to after installation feedback. Everyone we worked with was very professional, responsive, and friendly."

M Shepard | RBA OF ST. LOUIS, MO - MARYLAND HEIGHTS
Apr 13, 2022

"Very professional installation! Always on time and very respectful. Completed the job as scheduled. I would definitely recommend Renewal by Anderson of St. Louis."

Carla Bee | RBA OF ST. LOUIS, MO - MARYLAND HEIGHTS
Apr 16, 2022

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