Why Are My Windows Foggy?
One of the top questions we are frequently asked at EcoView Windows and Doors is “why are my windows fogged?” To answer this question, you will need to determine if the windows have condensation on the outside of the glass, or fogging between the 2 panes of glass.
Condensation on the outside of the glass
Condensation on windows is usually a signal of excess humidity in a home. Indoor moisture is caused by all kinds of household activities like cooking, showering, the washing machines, etc. Any household activity that uses hot water will add moisture to the air which can become trapped inside your home. Newer homes are more at risk of this issue due to construction focused more on energy efficiency. The insulation, weather stripping, and vapor barrier aim to reduce air leakage and improve efficiency – but this also acts as a seal to moisture.
Condensation occurs on the outside of the glass on your windows occurs when warm moist air comes in contact with the colder surface of the window. Many customers assume the window is faulty when the fact is that the windows are merely a visible sign that humidity exists in the home.
Fogging between the panes of glass
If you have a double-paned window with fogging between the glass, it’s a sign of seal failure which has allowed moisture to get in. This can cause condensation to build up inside the window panes and make them appear foggy. This can be due to broken window seals, cracks in the glass, or improper installation. Once a window has had a failed seal for several years, the glass will become dirty and permanently stained to the point where it’s completely obvious all the time. No amount of cleaning can remove this fogged appearance. Ultimately, this is a sign that your window has lost its efficiency and it’s time to replace your windows.

How does window replacement address fog and condensation issues?
New Energy Star rated windows hold up against the elements and withstand moisture. The vinyl frame prevents structural issues like rot, cracking, discoloration, and warping. These windows are constructed with thick-walled chambers that increase strength and insulation. They can withstand various weather conditions, including high temperature fluctuations, moisture buildup, and UV exposure.
Most importantly, the window that we offer at EcoView Windows and Doors are made with the top seal (or spacer) between the 2 panes of glass. The technology is a dual seal system with a closed cell polymer foam for increased efficiency unlike traditional metal spacers used in contractor grade windows which are left open. The spacer is designed to last 4 times longer than single seal systems​. This seal virtually eliminates condensation which keeps your windows in perfect condition preventing potential for mold growth or condensation between the glass for a fogged appearance! The overall durability and efficiency offers a long-term investment opportunity for homeowners looking to upgrade their windows.
