Latest Discussions : Windows & Doors

ush singh

03:01PM | 12/03/03
Member Since: 12/02/03
4 lifetime posts
I had new double pane windows installed and now dew is forming on the outside so I can't see through from early evening till early morning. There is a one inch border around the frame that doesn't dew up but the rest of the window builds up dew. My old dual panes didn't do this. My neighbors dual pane windows don't do it either discounting geography. The installer suggested I apply rain-x to the outside and that this is normal. I have not seen this behaviour in any one elses dual pane windows.


11:22PM | 12/05/03
Member Since: 01/28/03
693 lifetime posts
The ONLY way the outside of a window will 'dew up' is if the inside of the house has the air conditioning running and the exterior air temperature and humidity is above the dew point for the interior.

Bottom line:

Turn off AC.

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