How to prevent window moisture in the winter

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My window panes are full of moisture when the weather is cold outside. They are new windows, but still 'sweat' and are ruining the window sills. Any suggestions on how to prevent them from doing this? I wipe them constantly to no avail.
  16 answers
  • Brenda Brunner Brenda Brunner on Mar 15, 2016
    I have the same problem! I am hoping someone can give us some recommendations.

  • William William on Mar 16, 2016
    Are the windows single pane or double pane?

  • Tami Gormady Tami Gormady on Mar 16, 2016
    I had this same problem and googled it to death before settling on plastic insulation. The package comes with3m double sided tape. I bought the biggest kit possible off of amazon. Put the tape on, stick in the plastic, cut off the excess. Now the fun part, turn in a blow dryer and shrink it to your window shape. It creates a air space between the window and the plastic. I cant really tell they are attached. Supposedly your supposed to remove them after winter is over. Mine are staying up unless i find a reason to take them down. Never a crying window did i see all winter!

  • Marlene Serwinek Marlene Serwinek on Mar 16, 2016
    If you use a humidifier in your home (or have one installed on your furnace), you want to be careful not to have the humidity set too high. We have very cold winters where I live and one year I put the humidity up VERY high, thinking that would keep our skin and sinuses from getting dry and itchy. But I found out you can set it too high and it results in wet windows. When I lowered the humidity, the problem went away. Good luck!

  • Kauai Breeze Kauai Breeze on Mar 16, 2016
    Try a dehumidifier in your home. Gas heating creates a lot of moisture which condensates on the cold windows. A dehumidifier will help, but maybe not completely stop the condensation.

  • Lynn Deese Lynn Deese on Mar 16, 2016
    You can buy the silica cat litter, then either fill old socks (or make some pretty fabric tubes), close one end, then place a tube at the bottom of each window. Silica absorbs moisture and is what those little pouches we find in so many products. If you save those little pouches, you could use them too but getting the cat litter is easier. You can also find silica in craft stores for drying flowers.

  • Kathleen Kathleen on Mar 16, 2016
    Having the same issue with moisture and pooling water on the inside window ledges d will quickly turn into mold if I don't keep on top of it, so its a real battle. Put up plastic sheeting for my patio door, but I'm going to try applying silicone to the inside edges of my windows when it warms up a bit

  • Pg Pg on Mar 16, 2016
    If these are new double paned thermal windows, I would call the manufacturer or the installer, as they should not sweat. If they are all doing it, they are not insulated properly. If it is only some of them, perhaps something happened to the seals during installation. They should carry some type of warranty. I would definitely investigate before putting any type of insulation on them, that may void your warranty. I wish you the best outcome on this.

  • Gloria Overby-Culbertson Gloria Overby-Culbertson on Mar 16, 2016
    I had a door window that was really bad at sweating, I put bubble wrap on the window and that stopped it. The wrap will stick by itself, just used some scotch tape to hold it close to the edges.

  • Jhmarie Jhmarie on Mar 16, 2016
    Your indoor humidity may be too high. The water in the air hits the cold glass and condenses onto the window. If you have a humidifier, either freestanding or as part of your furnace system, check the setting and lower it a bit. If not sure, call your furnace company and ask what the recommended setting is. Sometimes the dry air from the furnace is uncomfortable and we can overcompensate if we set the humidifier too high.

    • Kebo Kebo on Mar 16, 2016
      @Jhmarie I absolutely agree. We often have condensation on our windows in the winter time, particularly when it is very cold, and it is caused by the humidity level being too high in the house. No need to replace brand new windows!

  • Louise Louise on Mar 16, 2016
    u need 2 get the new windows.kinda expense , but worth the price.

  • William William on Mar 16, 2016
    Storm window kits are available at the Home Improvement Store. Sheet plastic and double sided tape with instructions. They also have kits using plastic or aluminum tracks to build a frame using Plexiglass for a more permanent storm window that can be inserted and removed into the window.

  • Faith Rosborough Faith Rosborough on Mar 16, 2016
    Your humidity is too high in the house during the winter, and chances are your ventilation is poor. Look into a venmar system or something like that to ensure your air circulation is improved. New windows will not help you unless your current windows are single pane.

  • Susan Moody-Bushey Susan Moody-Bushey on Mar 16, 2016
    I bought a dehumidifier and it solved my problem. I would have to change the towels on a daily basis from the sweating.