Why Double-Pane Windows Collapse?

 In Window Replacement

Between combatting humidity extremes, 100 degree temperature swings, and the howling west wind, durable windows that offer enhanced insulation are all but a necessity in Wisconsin. It’s no surprise that the standard over the years has become beautiful and cost-saving option that is double-paned windows.

Of course, even the best of options has their flaws.

And if you’ve invested in a double-pane window, there is one common complication you’ll want to keep an eye out for: Collapsed Glass.

DEFINING THE DOUBLE-PANE WINDOW

Double-pane windows — also known as “double-glazed” windows, according to the National Fenestration Rating Commission (NFRC) —  are designed to better insulate a building from the inside-out.

And the way this is achieved? Insulation using gas.

Specifically, the two panes of a double-pane window are set slightly apart and then sealed to remain airtight, allowing space for a layer of gas to be injected in between. The combination of glass with gas is designed to both prevent indoor heat from escaping, as well as block excessive sun-related heat from entering.

Additionally, aside from offering optimized insulation and energy-efficiency, double-pane windows are highly-regarded for being both affordable and aesthetically-pleasing, making them an altogether popular choice for homeowners today.

NEGATIVE PRESSURE AND WHAT YOU NEED TO KNOW

Typically, window manufacturers will inject argon and/or krypton between the panes of glass to achieve the dual interior and exterior insulation, as the U.S. Department of Energy explains that both gases “are inert, non-toxic, clear, and odorless.”

However, the problematic potential for a window collapse occurs when the gas either leaks or begins to dissipate over time. As the gas escapes from between the panes, a vacuum is left in its place, otherwise referred to as negative pressure. This negative pressure can begin to bend and warp the glass, if not cause the panes to outright collapse.

And if you’re wondering how to tell whether or not your window(s) may be at risk of or have already collapsed, one telltale sign of negative pressure between the panes is internal condensation.

CALLING IN THE CAVALRY

If you’ve noticed condensation between the panes of your commercial or residential windows — or if you know for a fact your windows are collapsing — the culprit of negative pressure is ultimately that of improper sealing or poor installation.

Thus, the time has come for you to call a certified and locally-trusted team to replace your windows. And who better to contact than Renewal by Andersen of Madison?

Not only can we ensure that your windows will be installed correctly with our signature service, but our team also offers an industry-leading warranty in addition to low-maintenance and high-performance materials. To learn more about our services and products — or to schedule your FREE in-home or virtual consultation — contact us today!

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