Low-E Glass

What is low-E glass?
How many types of low-E glass are on the market?
Is all low-E glass the same?

Low-E glass refers to glass with a low-emissivity coating. It reduces heat gain or loss by reflecting long-wave infrared energy (heat) and therefore, decreases the U-value and solar heat gain, and in doing so, improves the energy efficiency of the glazing. Because of its relative neutrality in appearance and energy efficiency, low-E glass is widely used in residential and commercial buildings and is expected to continue to increase in usage in the coming years.

Vacuum-coated glass is available on the market in a wide range of colors and includes a number of varieties whose properties may even exceed energy-saving requirements. Guardian Industries manufactures SunGuard brand post-temperable sputter coatings at multiple locations. In addition to heat-saving properties, SunGuard HP, Neutral, SN, SNX series also have solar control properties, which help to reduce the load on the air conditioning system in summer.