Why Are My House Windows Fogging Up?

December 28, 2021

Perhaps you’ve noticed that your windows are fogging up. Does this mean your windows need to be replaced? Possibly, but not necessarily. To determine if the fog means it’s time to start window shopping, look for signs you need new windows. Here’s what you need to know.

Why are my windows foggy?

Your windows may be fogging up due to one of three common reasons. First, the panes may be foggy simply because there is an extreme temperature difference between the interior and the exterior of your home. Second, you may see fog on your windows if you have a lot of plants in the home. These plants may be generating excess moisture that’s building up on the windows. Third, you may have a broken window seal. If the seal breaks, moisture can work its way between the window panes, which causes the window to fog.

It’s important to determine which of these reasons is the cause of your foggy windows. If it’s a broken seal, your windows need to be replaced.

How can I tell if my windows need to be replaced?

You can perform an easy test to determine if the fog on your windows is occurring due to broken seals or indoor humidity. Swipe your finger across the glass where the condensation has gathered. If you can leave a trail through the condensation with your finger, and your finger gets wet, this means the condensation is on the inside of the glass and the result of indoor humidity.

Another simple test is to determine if more than one window is foggy. If so, it’s likely that the cause is indoor humidity rather than bad seals on all your windows.

When are my windows most likely to get foggy?

Since fog on your windows can be a sign you need new windows, it’s important to understand when fog is most likely to occur for other reasons. Condensation on windows is common when:

  • The outdoor temperature is 35°F or less.
  • There is a lot of moisture in the air, such as during a rainy spring or fall.
  • You have a lot of live plants inside the home.
  • There is a sharp drop in temperature.
  • The home is new, and materials are still drying out.
  • The design is a bay window, the shape of which reduces circulation and places panes farther from the home’s insulation.
  • Drapes are closed and restrict airflow.

What should I do if I have broken seals?

If your foggy windows are caused by broken seals, your windows need to be replaced. Contact your local window professionals for an estimate on new windows, so you can start enjoying clear views once again.

Get answers

If you have more questions about foggy panes or suspect it’s time to replace your windows, contact the experts at Architectural Windows & Doors, Inc. We offer the highest quality selection of windows and doors, made from the finest materials. Our team is ready to help you choose the best windows for your setting and budget. Reach us today at 970-928-9314 to schedule your personalized estimate.

Categorised in:

Architectural Windows & Doors, Inc.