Condensation forming on the surface of your windows and obstructing the views outside can be frustrating for some homeowners. It is a common problem that occurs mostly during the colder months, but have ever wondered why this happens? Understanding this phenomenon allows you to tackle the issue more effectively. Read on as we discuss the main causes of foggy windows.

Temperature Differences
A difference in temperature between the indoors and outdoors is among the many causes behind foggy windows. Warm air coming into contact with the cold surfaces of the windows causes the accompanying moisture to condense, appearing as water droplets that create foggy windows.
Excess Humidity
Too much moisture in the air can also contribute to the occurrence of foggy windows. Excess humidity levels increase the chances of condensation forming on the windows. That’s why it is important to improve ventilation in your home, especially when doing daily activities like cooking, taking a shower or doing the laundry. Investing in a dehumidifier can also help manage moisture content in the indoor air and minimize window fogging.
A Lack of Insulation
Poorly insulated windows increase the risk of window fogging. This is especially true if your home still has single-pane windows, which are known to experience condensation more than their double-pane counterparts. The inert gas fill in between the panes enhances the thermal performance of double-pane windows, ensuring your home remains comfortable in summer and winter. They’re worth the upgrade, though expect them to also accumulate condensation whenever there’s a temperature difference.
Window Seal Failure
Double-pane windows can still get foggy, but the condensation can be simply wiped away with a clean cloth. The biggest problem, however, occurs when moisture accumulates in between the panes. This is an indication that the seals around the windows have failed or broken, causing the inert gas to escape and effectively reducing the windows’ thermal performance. While this issue can be repaired, you’re better off replacing the affected windows, especially if they’re no longer in good condition to begin with.
Call STL Design and Build Today!
For high-quality window replacement services, turn to STL Design and Build. We offer Smart 365 Innovations replacement windows, which are practically made for St. Louis weather thanks to its integral features that help lower heating and cooling costs. To learn more about them and how we can install them for you, give us a call at (314) 736-5800, or fill out our contact form to request an estimate.