Why Does Window Condensation Occur in Summer?

Condensation is a common occurrence in windows and doors. It is understandable for homeowners to worry about seeing moisture on the surface of their windows. However, sweating or condensation is not necessarily an indication that there is something wrong with them. 

sweating window

Here are reasons window condensation happens in summer. 

Why Does Window Condensation Occur?

“Sweating” in a window can occur when its surface is cooler than the dew point temperature of the air that touches the glass. You may see condensation on your windows in summer if the outside air is too humid while the inside temperature is cool. Window sweating is completely normal in summer, and it is usually just visual. 

In fact, condensation on windows is a sign that the units are energy-efficient. Outdated, inefficient and insufficiently insulated windows will not form condensation. With energy-efficient windows and patio doors, outside temperatures are less likely to make an impact inside your home.  

When Should You Be Concerned About Window Condensation?

You should expect to see the condensation on your windows disappear through the course of the day. The moisture should evaporate as the temperature goes down, and the sun’s position changes. Homeowners should be concerned about condensation between the glass panes because it means that the window seal has been compromised. Consider having your windows checked if the moisture stays throughout the day even if the outside temperature goes down.  

You can minimize window condensation by managing your home’s moisture levels. If your interior is too humid, it may be a good idea to use a dehumidifier. Open windows, or run your exhaust fans when cooking or taking a shower. Another thing that should help is to not air-dry clothes inside. 

For quality window and door replacement services, choose Renewal by Andersen® of Houston. Give us a call at (281) 547-6177, or fill out our contact form to schedule a free consultation. We work with clients in Spring, TX, and nearby communities.