Upgrade Or Replace Windows

Why Should I Worry About Moisture Problems?
Does My House Have a Moisture Problem?
Reduce Moisture Sources Inside The Home
Add Insulation To Cold Surfaces
Reduce Uncontrolled Air Leakage
Install Effective Ventilation Systems
Basic Facts About Moulds
Upgrade Or Replace Windows
Check For Moisture Entry From Other Sources
Keep The Air Circulating
Get Rid Of Mould
Basic Facts About Moisture
Keep Humidity Levels Within A Healthy Range
Use Dehumidifiers Wisely
Moisture Problems, Don't Become a Statistic!

Windows are usually the first place where you notice condensation because they are the coldest surfaces inside the home. New window technology offers improved insulating value and can greatly reduce condensation. (But replacing your windows is not your first solution to a moisture problem. Reduce moisture sources before performing costly measures, such as replacing windows.)

If you are thinking about replacing deteriorated windows, consider upgrading to high-performance windows, which have special low-E coatings and are filled with inert gases such as argon or krypton.

The additional cost is usually less than 10 percent, and the energy savings are considerable. For more information on energy-efficient windows, refer to Natural Resources Canada's publication entitled Consumer's Guide to Buying Energy-Efficient Windows and Doors.

If your home's windows are still in good condition, consider installing some type of interior storm-window kit over the entire window and frame during the heating season. This effectively adds a layer of glazing, prevents air leakage, and brings the inner surface of the window closer to warm air currents. Condensation will be reduced or even eliminated, comfort will be improved, and energy bills and drafts will also be reduced. Thin plastic film (shrink-wrap) kits, which are available at hardware stores, are inexpensive but must be replaced each year. Other systems, such as rigid plastic sheets, are more expensive but can be re-used for several years.

If condensation is occurring between the panes of older unsealed windows (for example, a permanent window plus a storm window or two single-glazed slider windows), try sealing the interior unit with weatherstripping. If condensation is occurring between the panes of a sealed double-glazed unit, the unit will eventually have to be replaced.