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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

"Quality product, quality workmanship. Everyone I interacted with at Renewal by Andersen of SW Missouri had pride in their work from sales to financing to project oversight to installation. It must be a great company to work for because that shows in the professionalism of the staff. Best of all, they want happy customers and go out of their way to make sure that happens. Yes, I love my windows (but I knew I would--it's a great product). Friendly, helpful, easy financing, and yes--they pass costs on to the customer for this, but it meant that I was able to get the windows I wanted and needed for my creaky, lopsided old house. Couldn't be more pleased."

Keren
Aug 11, 2023

"The company representative who met with me initially was very direct, told me how the process would go, explained about why Anderson windows are of such good quality and how they stand by their products and their workmanship. My 3 windows arrived when they said they would, & the men who installed them were very professional, polite, & efficient. They showed me how the windows work and left the room as tidy as it was before they did the installation."

Judith Peavey
Aug 14, 2023

"We just had our windows done by Renewal. They kept us informed about the progress of manafucture & installed at the approximate date. Good qualtity & if you didn't know that there were screens on the windows you would think they were missing. Very clear view. Great in this hot weather, the house stays cool."

Jerry C
Aug 22, 2023

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