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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

"Great workmanship on windows installation is done very professionally by excellent crew. Installed in a very timely manner. Excellent company to deal with."

Roy D
Feb 14, 2023

"The Springfield team was wonderful to work with , professional , friendly and knowledgeable. They all seem to take great pride in their work. These new windows are fantastic, they look great , operate so easy and the energy efficiency was noticeable from the very first day . Thank you Renewal by Andersen for transforming our home and our lives."

Pam S
Feb 15, 2023

"After years of watching the wind move my drapes and hours of difficult cleaning, I decided to get new windows. I went with Renewal by Andersen because of the great reviews and quality. From Brent who did the consult, Gideon who did the measuring, to Jason, Josh, and I apologize I can't remember the third installers name, this is the most professional company I've ever worked with. I own a 1994 double wide mobile home, so everything in this place is hard to work with. I had a bay window, 6 double hung, 2 awning, and a front door replaced.. They said it would take 2 days and they were done on time! I did have second thoughts about doing this mainly because of the cost, but once it was done, I was very happy I did this."

Gary S
Feb 18, 2023

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