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What causes condensation on windows?

Window Condensation occurs whenever the window surface is cool enough to allow moisture in the air to condense on it. That’s why there is some in the winter, especially on older windows that are not insulated, though it could happen in the summer as well.

A glass of ice water sweats because the warm air that surrounds the glass meets the cold surface causing condensation. A window sweats most often when the warm air in your home meets the cold surface of your window in the winter.

It’s important to control condensation since it can damage the window’s components, including causing wood rot, and damage your wall insulation. If it saturates the wall insulation, the insulation effectiveness is reduced.  We don’t recommend wood replacement windows in Atlanta because of the harsh changing weather conditions that can lead to wood rot.

Do you need new windows? Good windows should not have excessive condensation at normal humidity levels (30 percent to 40 percent). TIP: Check to make sure the little breathing holes in your storm windows are not clogged. It’s a simple and easy project you can benefit from.

If your home is fairly new, we’d hope the problem is not your windows, but something else. If you have an older home, an inspection is the best way to see what your problems are and what your options are.

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