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  • Condensation on windows

    I just moved into a house in Maine and it has Anderson windows and now its getting cold out i see a little water on the window in the morning . The house is not to hot at night maybe 63* .
    In the summer time i was able to keep the house cool with a 8000 btu window unit ,so the house is well insulated . If we have a fire at night and it gets to 72* then in the morning it is no lower then 65* .
    I need to look in the morning when i have the wood stove on at night if there is still the same amount of water as i had when we have 1 wall propane heater on . the heater does have an exhaust and also outside air in .
    We do have a crawl space and it is dry down there
    Does any one have any idea why there is water on my windows
    thanks
    Charlie

    My seek the peek fundraiser page
    http://observatory.mountwashington.o...nal&fr_id=1040


    http://www.mountwashington.org/weather/conditions.php

    new work pictures 12/09
    http://public.fotki.com/hvachawk/

  • #2
    Re: Condensation on windows

    I think it's humidity in the air condensating on the cold glass (Anderson, or not). Check the humidity inside the house and run a dehumidifier to see if it helps, but be careful not to dry it out too much.
    I'll bet having a fire going dries out the air.

    Comment


    • #3
      Re: Condensation on windows

      Maybe just poor window construction. Maybe the relative humidity is too high in the house.
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      • #4
        Re: Condensation on windows

        Are they single pane glass or duel pane glass windows.

        Ron


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        • #5
          Re: Condensation on windows

          I had this problem with a new house i had built back in 2003. What i found was moisture in crawl space.
          I installed a plastic barrier on the ground, under my house. Problem solved. Might be your problem too.
          Good luck
          Huck.

          Comment


          • #6
            Re: Condensation on windows

            windows are insulated i may need to check crawl space again
            thanks
            Charlie

            My seek the peek fundraiser page
            http://observatory.mountwashington.o...nal&fr_id=1040


            http://www.mountwashington.org/weather/conditions.php

            new work pictures 12/09
            http://public.fotki.com/hvachawk/

            Comment


            • #7
              Re: Condensation on windows

              Hawk, I was in the replacement window Buss. for years . I was also a pella cert. Cont. At night ,two people in a bedroom ,give out, something like a Quart of water from breathing.
              This condensates on the window glass . Crack open a window, problem solved ! This is a very common complaint ! Info from Milgard windows.
              I can build anything You want , if you draw a picture of it , on the back of a big enough check .

              Comment


              • #8
                Re: Condensation on windows

                Humidity condenses wherever there is a marked temperature change. The warmer air holds the moisture and it will condense against the colder surface. It happens on cold beer cans in the summer and on your windows (insulated or not) in the first cold days of season. As the humidity of the air balances over a few days, there should be no condensate UNLESS you are having some kind of moisture problem within the house itself.

                For example, if you've got a leaking basement or other water ground water problem or even if you're introducing a good amount of moisture into the living space. For example, everytime my wife makes spaghetti, the kitchen windows fog up in the winter... less so in immediately adjoining rooms. But because the house is well ventilated, that moisture will disappear in an hour or so.

                If the house is sealed up too tightly, you may need to address the issue. While a house should not leak heat drastically, it is essential that there is some "breathing"... otherwise moisture from showers, cooking, and just human habitation will introduce moisture to a point where it can be noticeable and possibly a problem.

                A good example perhaps is our other home which is rather small at 1440 sq. ft. Normal occupation and constant entrance and exit keep the house fairly well balanced, even though the basement is a far less than desireable. However, at one point last winter we were gone for three weeks and we failed to crack open any windows. The temperature had dropped during this period and when we returned, the first thing I noticed (before even unlocking the front door) was that the windows were fogged up. Sure enough, the house smelled slightly musty. Just having it completely closed up wasn't too smart.

                I hope this helps,

                CWS

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                • #9
                  Re: Condensation on windows

                  One of the by products of poor combustion is moisture. Double check that the wall unit is working properly. Wall unit heaters especially propane ones scare me. Got a carbon monoxcide detector?
                  Last edited by plumberscrack; 10-22-2012, 05:55 PM.

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                  • #10
                    Re: Condensation on windows

                    Maybe a portable Dehumidifier (around $100.00) would be a choice to consider.


                    Ron


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                    • #11
                      Re: Condensation on windows

                      I need to see if there is a vapor barrier . Crack we have not used the wall heaters and i do have detectors , the heaters are closed chambers .
                      It is not a lot of moisture so a dehumidifier may be to much but i will check the humidity .
                      Thanks all
                      Charlie

                      My seek the peek fundraiser page
                      http://observatory.mountwashington.o...nal&fr_id=1040


                      http://www.mountwashington.org/weather/conditions.php

                      new work pictures 12/09
                      http://public.fotki.com/hvachawk/

                      Comment


                      • #12
                        Re: Condensation on windows

                        Use a dehumidifier to control the humidity. It can help you to control the level of moisture in your home and prevent condensation. It can even eliminate problems of mold growth and musty odors.

                        Comment


                        • #13
                          Re: Condensation on windows

                          Leave the bathroom fan or rangehood on for the night and see if you still have an issue I guess that your house is over sealed and there's no place for the house to breathe. Just a wild guess thou.

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                          • #14
                            Re: Condensation on windows

                            My previous home had a major issue with fogging windows in the cold season. My second home had an HRV installed when we moved in. It is great - no fog or moisture at all on the windows. If I ever move to another home, I will have one installed if there is not one present.

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                            • #15
                              Re: Condensation on windows

                              Hawk, from scientific point of view any closed space with any moisture content in atmosphere around would lead to condensation of moisture in the form of vapor. Same has occurred in your case. Hawk, you must have seen that during winters, when you complete close off all the windows of your car, the moisture condenses on it, the reason being what I hav mentioned before. So to get rid of this, you could just make your glass of windows slide down a little so as to stop humidification and condensation on your window. Hope you got the answer now.

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