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Moisture Solutions for Windows

In mid-summer, especially in regions with high humidity, it may be impossible to control moisture build-up inside the windows of an air-conditioned home. But, if you experience a continuous cycle of excess moisture on your windows, you may end up with mold and mildew or rotting window frames and windowsills. Look closely at your windows during humid weather to see if you are a risk for developing significant problems.

If you find that you have a budding condensation problem, here are some ways to address excess window moisture:

  • Reduce your home's humidity: Use ventilation fans, especially in your kitchen and bathrooms. Make sure your dryer is vented directly outside, attached securely to your wall, and clear of lint. Clean your vent duct at least once a year. If you use a humidifier to add moisture to your home, make sure you're not overusing it.
  • Evaluate your window insulation: Older, inefficient, single-pane windows are more likely to experience condensation. You have several options when improving the energy-efficiency of your windows. The best choice is to replace inefficient windows with new, EnergyStar-rated windows. In addition to reducing moisture on your windows, they can reduce energy costs, since these windows do a better job keeping your heated and air conditioned air inside.
  • Install storm windows: This is an inexpensive way to increase the energy-efficiency of your existing windows. Storm windows can also be an advantage in areas prone to severe weather.
  • Purchase a window insulation kit: Find these inexpensive kits at hardware stores. Basically, the kit is a thin shrink film that covers your windows and provides added protection from the elements.

Homeowners with severe window condensation issues may need a combination of the above methods to solve their moisture problem. But, tackling the issue, head-on, can prevent more serious problems in the future.