Low-E Glass for Windows

Written on: April 20th, 2015 BY IN Windows

You probably appreciate the windows in your home for their ability to let natural light in and give you a view to the outside. However, windows also allow fabric-fading ultraviolet light and heat-generating infrared light to enter your home. To counter these negative effects, many windows now come with a low-e coating.

Double-Hung Window

What is low-e glass you ask? It’s an advancement that improves the solar and thermal performance of windows. Learn more to help you decide if low-e glass is right for your home.

What Is Low-E Glass?

Low-e coatings on windows minimize the amount of UV and infrared light that can pass through, maximizing visible light while reducing textile fading from UV light and heat gain from infrared light inside your home.

The coating, which is microscopically thin, is named for its ability to convert an ordinary pane of glass from a high emissivity material to low emissivity. This means low-e coatings decrease the ability of the glass to radiate energy. In other words, instead of heat and UV light passing through the glass, the low-e coating reflects them back. Uncoated windows have an emissivity of 0.84 while e-low glass is closer to an emissivity of 0.02.

Reflecting UV and Infrared Light

Low-e window glass offers two main benefits. It helps:

  • Make your home more energy-efficient, saving you money
  • Protect your furniture and flooring

In the summer when the sun’s rays beat on your windows, low-e glass reflects a majority of the heat, helping to lower your cooling costs. The reverse happens in the winter. When heat tries to escape to the outside through the glass, the low-e coating reflects it back inside, lowering your heating costs.

In short, when it comes to reflecting infrared light, low-e glass acts like a thermos, insulating your home and helping it stay the same constant, comfortable temperature.

Low-e coatings also protect your furniture and floors from fading by minimizing the amount of ultraviolet light that can pass through the window. UV light makes up only a small portion of the energy emitted from the sun, but blocking it can help interior materials maintain their colors for decades to come.

Quality Low-E Window Installation in the Indianapolis Area

Now that you know what low-e glass is, you may realize it’s just right for your home. At Overhead Door Co. of Indianapolis & Muncie, we offer low-e glass window options from American Window and Great Lakes Window. Contact us today to learn more about these high-quality brands.

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