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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

"Renewal was fantastic! They kept you in the loop from ordering to installation. They informed you at every step of the process of what was happening. The installers were kind, courteous, and professional. Everything was cleaned up after the installation. It was as if they hadn't been there except to see your beautiful new windows. I highly recommend them."

Angie Klevorn
Nov 21, 2023

"3rd time using RBA for window replacement. Again, a very positive experience, the windows are great, the installation was done right, the professionalism was apparent from start to finish. Still have existing windows to be replaced and will definitely use RBA again to do it in the future."

Doug Dick
Nov 21, 2023

"Renewal by Andersen was a good experience for us in replacement of our windows. From the initial meeting with the sales representative, Leslie, through the waiting period for manufacturing, and then to the installment process, our experience was excellent! Communication is key for me and we were kept informed and updated as our windows were being ordered and manufactured. Calls to update us on the installation process were welcomed and appreciated. They know how much is too much so they don't pester you with unnecessary contact. We love our new windows!!! Did I say that already??😂 We can tell a major difference in reduced Street noise and also the temperature at our windows. Excellent company, highly recommend!!"

Paula Null
Nov 15, 2023

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