Looking for new windows for your home? You may have heard a lot about styles and maintenance requirements, but you may not have heard so much about the type of glass used. Perhaps you’ve heard mention of low-E glass and how desirable it is for replacement windows. But what is it and why do you want it for your new windows?
Low-E glass stands for “low emissivity” and is comprised of a thin, transparent coating on the glass that basically reflects heat. When glass absorbs heat, it is diverted through moving air or re-radiated onto the glass surface, says the Efficient Windows Collaborative. The ability of a material to radiate energy is known as emissivity. You can increase your window’s insulation properties when reducing emittances, as heat emission is one of the vital aspects of heat transfer in windows. That’s why you’ll hear your window installation experts recommend low-E glass for your replacement windows.
Take a look at this example: in standard glass, 84 percent of the heat that reaches the glass surface becomes absorbed, and 16 percent is reflected. In contrast, low-E glass coatings emit four percent of energy, reflecting 96 percent of heat. These coatings, then, minimize the amount of UV and infrared light that’s allowed to pass through the glass without limiting any of the visible natural light.
Why is Natural Light Important?
Speaking of natural light…it’s important for homeowners to put the power of the sun to work for them. The more natural sunlight you can allow into your home, the less you’ll pay in daytime energy costs. Home Advisor points out that your home will appear larger and more welcoming with plenty of windows that allow light to stream in. In addition to its ability to maximize energy savings and minimize peak energy demand, it can also boost efficiency, productivity and comfort, says Architectural Lighting.
If you have many windows in a room, you’re at greater risk for solar gain, heat loss, and UV infiltration – all the more reason to invest in quality replacement windows with low-e glass.
There are several reasons to opt for low-E glass:
- Provides up to three times more insulation than traditional windows, ensuring consistent indoor temperatures that don’t require you to constantly be re-adjusting your AC and heat.
- Reduces radiant heat loss.
- Makes it possible to experience lower energy bills and better comfort levels all year long. Whenever the interior heat energy wants to get outdoors in winter, the low-e coating reflects the heat back in, with the reverse being true in the summer.
- Can block two times more ultraviolet light than standard windows, so you don’t get fading on carpets, curtains and couches.
- Can keep the temperature of the inner windows similar to the room temperature, preventing condensation and keeping mold or mildew at bay.
- Reduces the prevalence of cold spots and drafts at windows.
- Has environmental benefits, reducing CO2 emissions.
- Can increase the resale value of your home due to the higher energy efficiency.
Contact Rescom Exteriors
We are proud to offer a variety of beautiful and energy efficient windows available with low-E coatings. Call us today at 508-832-5202 to learn more.