Low-e windows have many benefits and are a terrific investment. However, there’s a rumor online regarding a possible deficiency. Some homeowners are concerned that these windows can cause direct damage to a neighbor’s property. Let’s examine this rumor and determine whether it holds water.
The rumor is that low-e glass may damage a neighbor’s siding, leading to cupping and warping. This is commonplace in the summer as barometric fluctuations cause low-e windows to bow inwards and reflect UV rays. The window practically turns into a giant magnifying glass that directs sunrays in a laser-beam-like focus. If the neighbor’s house is directly across from the window, then it’s on the receiving end of the directed heat-ray. The temperature from magnified heat can surpass 200 degrees Fahrenheit. Vinyl siding starts to warp at around 165 degrees.
According to the Lawrence Berkeley National Laboratory, no comprehensive study exists on the topic, so the entire issue over low-e windows directing heat and damaging nearby properties is just a theory.
This is certainly a legitimate concern. However, the temperatures in Washington state doesn’t generally rise high enough that it can cause low-e glass to magnify that degree of heat. For homeowners still worried, you can implement the following:
- install an awning above the window to block direct sunlight
- diffuse UV rays by installing a window screen over the glass
- install a privacy screen over the window
Exteriors Unlimited installs energy-efficient windows. Read our various testimonials; in our many years of service, we’ve never got an angry complaint about our windows reflecting heat. Even in the summer, the Pacific Northwest doesn’t quite reach scorching temperatures that make it even a remote possibility. Homeowners don’t need to be concerned about low-e windows creating laser beams and melting the neighbor’s home siding.
Serving Spokane, Spokane Valley, Liberty Lake, Medical Lake, Cheney, Sprague, Reardan, Spangle, Rockford, Fairfield, Edwall, Ford, Clayton, Springdale, Deer Park, Colbert, Chattaroy, Mead, Airway Heights, Davenport, Ritzville, Nine Mill Falls, Rosalia, Oakdale, Tekoa, Colfax, St. John, and Endicott Elk, Post Falls and Coeur d’Alene since 1984