Common Window and Door Problems & Solutions
Listed below are some common concerns and solutions for our customers. If these suggestions do not solve your current issue, please contact us.
Information Regarding Condensation
Issue: Condensation has formed on the inside surface of glass.
The primary cause of condensation is excess moisture in the air.
It shows up on the glass in windows and doors because these surfaces are relatively cool compared to the warm, moist air.
Indoor moisture comes from humans, animals and plants. Humidity is created in homes through various activities such as cooking, showering, the clothes dryer and many other day-to-day activities.
Since homes today are quite airtight, the moisture caused by these activities becomes trapped inside. Once there is a build-up of moisture in the home, it will deposit itself on objects that are at the same temperature or cooler than the air.
Therefore excessive humidity becomes condensation on the room-side glass surface of your window. If condensation is evident on windows it should be wiped up whenever possible and efforts to reduce humidity levels should be made or this moisture could damage the window and cause a seal failure.
To reduce humidity in the winter months, try the following:
- Turn the humidifier on your furnace down or off
- Vent all gas appliances, the clothes dryer and exhaust fans to the outside
- When showering or cooking, turn on a fan or open a window slightly to allow excess moisture to escape
Relative Inside Humidity for Outside Air Temperature
The table below shows the suggested level of relative humidity for inside the home for varying outside temperatures:
To maximize the life of your sealed unit component (glass) of your windows, please keep the relative humidity under 40% as detailed in the chart above.
For more information on how to control condensation in your home during winter, please watch the below video from Tarion Home Warranty Corporation.