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Low-E coatings, also known as Low-E glass, are placed on modern windows to limit the rays of UV and infrared light that would normally pass through the glass. They also block UV rays without sacrificing the amount of visible light that is being transmitted.

The E in Low-E stands for “low emissivity,” a measurement on a scale from 0.00 to 1.0. The process involves the application of multiple invisible layers of metallic oxide, allowing natural light to enter your home while at the same time deflecting harmful UV rays and infrared light back into the environment.

Low-E coatings are microscopically thin and transparent layers that are designed to minimize heat transfer. They also increase visible light transmittance while ensuring energy efficiency. In general, higher reflective materials possess a lower emissivity while dark and dull colors possess a higher emissivity.

Capabilities of Low-E Glass

Not only does Low-E glass reflect infrared and UV light, it gives you a more energy-efficient window. Here are some of the benefits of Low-E coatings on replacement windows:

  • Durability. You can’t scratch off Low-E coatings, nor can you wipe them off or damage them because the coating is on the inside portion of the glass.
  • Significant reduction in heat loss. Reduce heat loss and eliminate heat transfer in your home by up to 50 percent.
  • Cost savings. You can enjoy lower energy bills by using windows with Low-E coatings.
  • Protection of household items. Because UV light rays can’t penetrate the window, they can’t fade and damage furniture, upholstery, curtains, couches, and floors.
  • UV protection: Low-E windows prevent most of the UV radiation from entering your home, resisting ultraviolet light and preventing harmful UV exposure.

Low-E in Summer Time

Low-E coatings bring vast benefits particularly in the summertime, giving you more control over solar heat gain – especially during direct sunlight hours. Less solar heat is transferred to the interior because it has a lower (SHGC), or solar heat gain coefficient. The result? You are better able to maintain a cool, comfortable temperature in your home all season long.

Low-E coatings are just one element of energy-efficient windows and glass doors. Double-pane and triple-pane windows increase energy efficiency, as does proper insulation, and the addition of argon or krypton gas between the panes of glass. Multiple glass panes mean that multiple surfaces can receive Low-E coatings, depending on your performance needs. And all the glass is secured by thermally-efficient window frames with insulating cores. All of these things contribute to the level of energy efficiency in a window.

Contact Amazing Exteriors for Energy Efficient Replacement Windows

To learn more about how Low-E coatings can improve the UV protection and energy efficiency of your home, contact us today at 512-428-8417. We sell and install a variety of Marvin windows and doors for your convenience.

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