Low E glassLow-emissive (Low-E) glass is window glass that has been treated with an invisible metal or metallic oxide coating, creating a surface that reflects heat. Low-e glass has a microscopically thin, transparent coating – it is much thinner than a human hair – that reflects long-wave infrared energy.

Low-e glass comes in high, moderate and low gain panels. In especially cold climates, heat is preserved and reflected back into a house to keep it warm. This is accomplished with high solar gain panels. In especially hot climates, low solar gain panels work to

reject excess heat by reflecting it back outside the space. Moderate solar gain panels are also available for areas with temperature fluctuations.

This glass works by reflecting heat back to its source. All objects and people give off varying forms of energy, affecting the temperature of a space. Long wave radiation energy is heat, and short wave radiation energy is visible light from the sun.

The coating used to make low-e glass works to transmit short wave energy, allowing light in, while reflecting long wave energy to keep heat in the desired location.

Why Low E Glass?

Low-E Glass are energy efficient to reflects, absorbs, and emits radiant energy Low-E Glass reflects a lot of that unwanted energy back towards the sun instead of letting the heat pass through the

glass. Low-E Glass reduces the amount of energy lost through your windows by up to 75%.

Benefit of Low E Glass:

Low E glass reflects the radiation rather than absorbing it, improving performance, resulting in a lower U-value. The lower the U-value the better the performance.

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