Window Condensation

What causes window condensation?

  • Any form of moisture found on your window - water, fog, mist, frost, etc., is called condensation. Condensation happens naturally when damp warm air makes contact with cool dry air just like your bathroom mirrors will fog up after taking a hot shower. Both the inside and outside of the window will sweat or mist because of the temperature changes.
  • Today's home insulation and building materials are designed to keep the cold air outside the home. The result is that warm air is therefore kept inside. Windows that were made more than 10 years ago were less able to keep the warm air inside and therefore allowed moist air to escape.
  • If you didn't have condensation on your windows before installing Golden Windows, it may have been because your old windows were drafty. The better the quality of the windows, the better their ability to create a barrier and prevent the cold and warm air from interacting. Add that to the moisture already existing in your home from cooking, washer/dryer, and showers that are not vented to the outside of your home, and you are left with a high level of humidity and moisture that will appear on your windows.

Are my windows defective?

  • Defective windows do not cause condensation. Because glass has a lower surface temperature than any other surface in your home, your windows will be the first place that you notice condensation. Some degree of condensation will always be a natural occurance with your windows.

How can I reduce window condensation?

  • The key to reducing the condensation on your windows is to make sure the relative humidity is under control in your home.
  • Opening the windows around your home for a short time will rid the windows of condensation. This will allow the dryer cold air to circulate inside the home while most of the warm air escapes.
  • Heat registers located in front of windows should remain unobstructed and clear.
  • Add ventilation fans in high humidity areas such as laundry, kitchen and bathrooms.
  • Open blinds, draperies, interior shutters during the night to allow air to circulate near glass surfaces.
  • Run a dehumidifier, if necessary.

For more information about condensation in the home, here's a helpful article from CMHC

Care & Maintenance

In order to keep your Golden Windows looking like new, we recommend that you perform annual maintenance to ensure maximum warranty coverage. 

  • Clean all operating hardware, hinges and tracks at least twice per year and lubricate lightly with a silicone spray or light oil.
  • Clean vinyl surfaces with mild soap and water.
  • DO NOT clean glass or other finishes with abrasive materials or cleaners.
  • Clean aluminum with mild soap and water. An application of automotive paste wax may renew the lustre of the aluminum.
  • Care should be taken to ensure weather-stripping and hardware is not painted over. This could hamper the operation and seal of the window and cannot be claimed under the warranty as a manufacturing defect.
  • Inspect face caulking annually to ensure proper seal against the glass.
  • We recommend removing the internal screens during the winter months to lessen the likelihood of condensation forming on the glass surfaces.

For operation and trouble shooting of Multi Point Locking hardware, please click here.


The Window Solutions That You Need

Window renovations are more difficult to plan in certain rooms and spaces like attics, bathrooms and raised basements. You need to take elements like window size, style, placement and moisture-resistance into consideration when planning your build or renovation. If you want to know what installations will work best for the trickiest spots in a house, read these helpful tips.

May 16, 2018

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