Low-E Window Glass: What It Is and Why It Matters

Low-emissivity glass (Low-E) is synonymous with energy-efficient windows. Over the years, it has gone from secret to standard. Along with double glazing and argon gas filling, Low-E is a non-negotiable element of today’s high-performance fenestration products.

 

To fully appreciate its value among energy saving windows, Jones and Associates answers these important questions:

 

How Does Low-E Glass Work?

 

Low-E glass comprises layers of metallic coating that interact differently with the sun’s three forms of energy: infrared, ultravioletnbsp;and visible light. The first two are generally unwanted, especially in hot climates, since they cause heat gain and sun damage. The third and the only portion of the spectrum that our eyes can see is usually desirable because it allows illumination.

 

Compared with units with clear glass, energy saving windows equipped with layers of Low-E coating block infrared and ultraviolet rays while allowing the sunlight through. As a result, they prevent excessive heat gain, decelerate the fading of home items and building materials, and brighten indoor spaces.

 

How Does It Contribute to Heat Insulation?

 

Windows with Low-E glass only lose little heat coming from the inside, hence the term “Low-E”. This ability is crucial because your cooling costs are bound to increase when your units don’tnbsp;reduce thermal transfer. This is why products with Low-E coatings have a low U-factor (the rating for heat transmission) and a high R-value (the measurement for heat insulation).

 

How Much Difference Does It Make?

 

The Low-E glass is the main reason energy saving windows are energy-efficient. It’s the biggest contributor to the overall performance of units. The window material, insulating gasnbsp;and spacer system play vital roles in reducing energy conduction, but the Low-E glass delivers benefits on a major scale.

 

At Jones and Associates, we carry Simonton’s Prism Platinum window series. The innovative ProSolar® Low-E glass is behind the exceptional performance of our replacement windows. To learn more about our custom units, call us today at (806) 686-1380 to schedule your FREE, in-home consultation in Lubbock, Midland, or Odessa, TX.