Warm air can hold more water than cold air. If air with a lot of humidity/water in it gets cold, the water has to come out. It comes out on the coldest thing around and that’s your windows.
The “cure” for condensation it to do one of 2 things. The first is to get water out of the air. You can do that by adding a dehumidifier. The water gets in the air in your house by either coming in with outside air or from things like baths, showers, washing dishes or other large water using activities so eliminating these things could also help.
The second thing is to keep surfaces warmer. More insulation will help this. The “dead air space” between the 2 panes of glass in most modern window units will help condensation from forming. The “dead air space” really isnot that. It is full of an inert gas like argon. If the seals of the sealed panes leaked during insulation, regular air can take the place of the argon and condensation can occur between the panes and on the out pane. You cannot reseal the space or replace the argon. If this is what is happening, you should contact the window manufacturer for replacements.
Henry in MI
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