Foggy windows, dripping condensation, and streaks inside insulated glass panels are all frustrating issues. The cause of the fogging depends on your window type, but no glass is immune. Read on to discover what is making your windows fog up, and find out what you can do to remedy the problem.
Fog occurs because of a combination of temperature differences between the inside and the outside of the glass, combined with humidity. Condensation occurs on the inside of glass when the windows are poorly insulated, so the interior of the glass is colder than the room. Moisture then condensates on the glass surface, much as it would on a cold soda can on a hot day.
With insulated glass, the condensation sometimes occurs between the layers of glass. This is more of a concern, because it means there is a leak in the seal between the glass panels. Not only does this lead to interior condensation, it also means the insulated glass has lost much of its insulation properties.
Condensation goes beyond being a nuisance, it can also lead to damage. As condensation builds up, it begins to drip. If you have wood or painted window frames or sills, this can lead to warping, paint damage, or mildew growth.
In extreme cases, the moisture may run down over walls, damaging the drywall, or drip onto the floor beneath where it can cause moisture damage to flooring or carpeting.
Single Pane Solutions
Single pane windows that develop condensation easily can benefit from more insulation. Do this by replacing the windows with double-pane insulated glass. Not only will this replacement prevent most condensation, it will also improve the energy efficiency of your home.
If replacement isn't an option, then you can try a combination of running a dehumidifier and keeping the temperature in the room lower.
When condensation builds up between the panes of double or triple pane thermal windows, it may be time to replace. These windows have a gas filler, usually argon, between the panes to provide the insulation. When something damages the seal, the gas escapes and moisture finds its way in.
There are some window companies that fix these windows using a drying and venting process. This prevents moisture from building up between the glass again, but it doesn't restore the insulation qualities of the glass. Generally, replacement is recommended to ensure the windows are performing properly. Contact a glass repair service to learn more.