Double pane windows are not like the usual double pane windows which are made with only one pane of glass. Double pane windows, as the name suggests, is made up of two panes of glass and is also known as insulated windows. The space found between the panes of glass is what actually keeps your home warm in winter and cool in summer. That’s because the space is filled with air or dense gas (usually argon or krypton gas). The molecules move slowly to keep the air space at a constant temperature. As a result, any cold from outside moves slowly into your home through the insulated window.
In some cases, materials are added in the window sealed spaces which will prevent moisture build up and eventually mold in your home. Modern day double pane windows have two seals, an inner seal to protect against moisture and corrosion and an outer seal which has the function of holding the whole structure in place.
How is condensation caused?
Insulated glass is known for working well under strain and extreme weather conditions however with time, the seals will eventually corrode. The heat from ongoing exposure to the sun’s rays will cause the window panes to contract and expand. Over time, this will weaken the contact between the glass and the seal. The seal can also be compromised due to water retention in the window frame and inadequate drainage. Once the window seals have been compromised, moisture sets into the space between he panes and this brings about condensation o the glass. You will immediately notice this as the appearance will be foggy or misty. You may need to replace or repair your house windows whenever needed so that you do not end up having foggy glass.
How to prevent condensation
Condensation can be prevented by increasing the air circulation in your home. You can start doing this by:
- Turn on the kitchen or bathroom fan every time you cook or shower for at least 20 minutes.
- Make use of your sealing fan even in winter but set them to work in a clockwise direction. This will push the warm air downward.
If you notice that there is a humidity problem in your home, try to use a dehumidifier. You can also prevent condensation simply by keeping your home windows open when you are able to. This will release the warm, moist air that is trapped in your home.
How to remove condensation in double pane windows
Moist air must be replaced with dry air so there is no DIY fix for this problem. You will need to hire a professional. The person will evaluate your window and offer a solution for you. Either:
Replace the window (or pane)
Dry air between the panes has been compromised, replacement may be the only solution. You may find that it is possible to replace one window pane instead of both however if it is rotting then you will need to replace the whole unit.
A glass professional will be able to clean the window. This is done by drilling holes at the top and bottom corners, spraying a cleaning solution inside the window through the hole at the top and draining it out through the hole at the bottom. The holes are then sealed with vent plugs and the air, water and vapour that may have been trapped can easily escape.
In any event it is best to take care of your windows and do regular checks to avoid major issues later on. Regular checks can end up saving you a significant amount of money in the future.