Schedule a Free Consultation

How Condensation Makes Your Windows “Sweat”

Sometimes, you’ll notice that your ENERGY STAR® windows seem to “sweat” during the summer months. This doesn’t mean your windows are defective – rather, it’s just condensation, and it tends to happen to windows during any season throughout the year.

energy-efficient windows condensation

Condensation and Windows

Condensation is a natural phenomenon that occurs when one side of a surface is cooler than the dew point temperature of the air on the other side. During winter, this will be a common sight on your windows when the warm interior temperatures come into contact with cool exterior temperatures.

However, condensation can also happen during the summer when outdoor air is very humid and inside temperatures are cool due to your air conditioning system. Unlike when it forms on old and uninsulated windows, this usually indicates you have good quality and energy-efficient windows installed because the low-emissivity (Low-E) coating is effectively keeping the outdoor heat from getting into your home. This means your indoor temperatures stay cool and comfortable for longer, and your air conditioner won’t need to consume as much energy!

Larger View and Improved Energy Efficiency

It’s normal for condensation to disappear as outside air temperatures rise. Usually, you’ll notice condensation forming when you use your AC during the early morning hours when the air tends to be much cooler. But as the day progresses, and the outdoor temperatures climb, the condensation will dry up on the exterior of the glass on its own. It may also form during the early evening hours due to the temperature drops.

Call Renewal by Andersen® of Southwest Missouri today for the best vinyl replacement windows! You can reach us at (417) 268-9301, or you can contact us online through our convenient form.

Reviews

"They did a great job and were very professional. They were in and out and the work was completed on schedule. I would highly recommend them to anyone wanting to install windows. I also really like the product. When we need additional windows we will contact Renewal by Anderson! "

Bill Shreck
Aug 27, 2021

View All Reviews