The Primary Reason Why Your Windows “Sweat” in the Summer

Condensation usually appears on your windows in winter. However, the same thing happens during the summer months. Renewal by Andersen®, one of the top window contractors in the area, explains how and why it occurs during this time of year.

All About Condensation

Humidity levels rise when we rely on your heating system for comfort during the winter. Warm indoor air then comes into contact with cooler surfaces around your home, including the window glass. The difference in temperature inside and outside your home causes the interior part of your windows to “sweat” or form water droplets.

This can also happen during the summer months, but in reverse. As the weather heats up outside, the indoor air becomes much cooler thanks to air conditioning. In this instance, the “sweating” happens on the outside of the windows. It is similar to what happens when you leave a glass of cold water at room temperature for a few minutes.

Is Window Condensation a Bad Thing?

Window condensation isn’t always a cause for concern. In fact, it only means that your windows are in good condition and doing their intended function. Energy-efficient replacement windows have low emissivity (low-E) glass coatings that keep the exterior and interior sides at the same temperature as the outdoors and indoors, respectively.

The only time window condensation becomes a problem is if water droplets appear from between glass panes. It is an indication that the seals on the insulated glass unit have failed, reducing the windows’ efficiency. In this case, get in touch with a reliable contractor for window replacement.

Renewal by Andersen of Seattle offers high-quality replacement patio doors and windows for homeowners in the local area. We make sure our energy-efficient products are professionally installed so that you can enjoy consistent indoor comfort this summer and beyond. Give us a call at (206) 775-7533 or fill out our contact form to schedule an appointment. We serve homeowners in Seattle, WA, and the surrounding communities.

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