Homeowners, Moisture and Ice Build-up on Windows in our cold Weather?

Ice build upon window

Why does ice buildup on my windows, anyway? 

There are many forces at work in the harsh Canadian climate, but here are some causes that you should look out for: 

1. Water vapor: When temperature drops outside to below zero, the water vapor or moisture in the air is drawn towards the window pane. When its surface goes beyond the “dew” point, the vapor quickly changes from gas to water droplets and can rapidly freeze into ice crystals.

2. Humidity: Humidity is the actual measurement of moisture or water vapor in the air. Decreasing humidity levels in your home can help to stop your windows from getting frosty, but it does not guarantee that the problem will be gone.

3. Air leakage & poorly performing windows: While windows act as a barrier to keep your interiors warm, they may soon start to leak air. Some reasons could be because they were not installed properly, or they may already be worn down or damaged due to age.

What can happen if ice continues to buildup? 

-Having ice on your windows can present not only aesthetic problems, but also structural and safety concerns. 

-For one, it can cause long-term damage to your windows. Wood can be warped by moisture, and can potentially lead to cracks in the glass. These can even worsen your air leakage problems, making it turn for the worse in the coming cold climates. 

-When the frost melts, the water can cause the paint to crack, allowing the wood to eventually rot and cause mold and mildew around your windows. The presence of mold can lead to health concerns, as these irritants can cause problems to your lungs and respiratory system. 

-Finally, since your cold and leaky windows are already not functioning in the way they should, expect your energy costs to go up as you desperately try to warm up your house.