07:18AM | 11/11/08
Member Since: 11/10/08
1 lifetime posts
Our upstairs windows get a lot of moisture on the inside of the windows. From the excess moisture the wooden window sills are moldy. The house is 16 years old, Peachtree windows, and we have a dual hot air heating system (attic & basement). We had a home energy audit done and I was told that the windows are working properly. It just seems to be to much moisture. Are the windows working correctly or should we look into replacing them?


12:12PM | 11/12/08
Member Since: 04/25/05
1915 lifetime posts
When air is cooled below the dewpoint it will condense.

Either the dewpoint is too high (moisture level is too high) in the house.

Or the surface of the windows is too cold.

Or a combination.

Beside problems with the windows themself the surface can be too cold because you keep the rooms too cold or you have loose fitting covers (drapes for example) that allow moist air to get to the window, but not enough air flow to keep it warm.

Or you have too high level of moisture in the house. If that is the case then using vent fans more often when cooking and bathing is needed.

The first step is to get a humidity gauge and monitor the levels in your house.


02:16PM | 10/15/09
Member Since: 10/14/09
16 lifetime posts
Hello, you have too much moisture in your house...look up condensation on the internet, many useful solutions, mine were as simple as, using my ceiling fans or any fan in the morning.

Kenny Shalek

Senior Installer / Sales Technician

K & K Window Service

Custom Doors & Windows, Chicago, Lake Geneva, WI, Milwaukee, WI
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