Is Condensation Between Window Panes Normal?

Sep 30, 2021

Foggy casement window with water buildup around the mullionsDo you have so-called “sweaty windows” in your home? That is, do you frequently notice condensation on your windows and sliding glass doors? In regions like northwest Indiana, where the temperatures swing from high to low as the seasons change, the sight of condensation on the exterior side of window glass is usually normal. The condensation consists of water droplets that form when cold air comes into contact with moisture-laden warm air. Replacing single-pane windows with energy-efficient, double-pane windows should reduce the frequency of this type of condensation; however, exterior condensation caused by temperature changes is not a cause for alarm.

Condensation can also form on the interior surface of window glass in warm, humid rooms like kitchens and bathrooms. However, if you notice interior condensation on one or two windows in your home, and you’ve ruled out steam and temporary temperature shifts from cooking and bathing as the cause, your windows may have an air leak. Why does that cause condensation? Because when warm, moist air from the outdoors infiltrates your home through a faulty window, water droplets may form on the glass if you keep your indoor spaces at a cooler temperature. In this case, you’ll want to contact an experienced window professional to investigate the cause of the condensation and provide you with guidance as to any needed repairs or replacement. Allowing the air leak to continue could lead to higher cooling and heating costs as well as problems with mold and mildew growth.

Condensation Inside a Double-Paned Window Is Not Normal

If you or the previous homeowner invested in replacement windows in recent years, it’s likely that you have double-paned windows. Most window replacement customers choose double- or triple-paned windows these days because they provide the highest level of energy efficiency, and therefore can help reduce utility bills related to indoor climate control. Although construction techniques vary among different window manufacturers, an energy-efficient replacement window typically incorporates two or more window panes with air or argon gas fill between the panes for enhanced insulation.

When you see a foggy buildup between two window panes, that’s a sign that the window seal is failing. The integrity of the window seal is vital to the reliable performance of your home’s windows. If it’s failing, you’ll not only lose the energy efficiency benefits you expect from your multi-paned window, but there’s also a high risk for mold growth between the panes—a development that will be unsightly and potentially pose a health hazard.

When Window Replacement Is the Solution

In most cases, a broken window seal in a multi-paned window will be difficult or impossible to repair. Therefore, you’ll need to partner with a trustworthy home improvement company that offers and expertly installs high-quality replacement windows. It’s important to consider the installation expertise of your window replacement partner as well as the quality of the windows you buy because improper window installation is often the cause of window seal failure.

If you live in Valparaiso or another community in the northwest Indiana area, you can feel confident turning to get Window Depot when you need replacement windows. We have a terrific selection of top-caliber, energy-efficient windows to choose from, many of which are backed by lifetime warranties. And all the windows we sell are expertly installed by our own extensively trained employees who take pride in their workmanship.

To learn more about the beautiful, high-performance replacement windows we install for homeowners throughout northwest Indiana, contact get Window Depot today.

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