Frosty the windows

Old 01-16-06, 07:39 AM
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Frosty the windows

Help, very inexperienced with windows. Our home was built in 1980 and fairly sure the windows are original. We've lived in the house for about a year.

The windows are all double-paned aluminum sliders. The window glass is ancient and fogged.

After a recent brutally windy, cold few days we noticed that a number of the windows have frost on the inside on the aluminum frame at the bottom.

Any thoughts on the cause of the frost? Is there anything I should do? Was placing on replacing the full window assemblies in the spring, is that the right idea?

Please any/all thoughts welcome
Old 01-16-06, 10:33 AM
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There are a number of older threads in this forum on the subject of why windows develop condensation or frost in the wintertime. Especially with aluminum windows you will notice this because metal conducts heat/cold more than wood or vinyl.

You could replace the windows but it will not guarantee that you will fix the frost or condensation problem because of many other factors involved, such as the humidity in your home, whether you keep curtains pulled, whether there is air movement in the room, etc, etc. One factor to consider if you are thinking of replacing the windows is that right now, you can just wipe the aluminum frame off with a rag, and aluminum can't be hurt by a little moisture. Imagine how they would look if you replaced your aluminum windows with wood windows and the sweating problem continued- (would start to rot and mold).

Keeping the curtains open and placing a fan in the room to move air over the windows would likely solve your problem. Reducing the humidity with a dehumidifier will also help.

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