Choosing Glass Options

LoĒ (or Low Emissivity)

Refers to a surface condition that emits low levels of radiant thermal (heat) energy

Visible Light Transmittance

The amount of light in the visible portion of the spectrum that passes through the glazing material and glass unit

Fade Transmission

The portion of energy transmitted in a spectral region from 300 to 600 nanometers. This region includes all of the ultraviolet energy and part of the visible spectrum, and will give the best representation of relative fading rates. The lower the number, the better the glass is for reducing fading potential of carpets and interior furnishings.

Solar Heat Gain Coefficient

The amount of solar radiation that enters a building as heat. The lower the number, the better the glass is at preventing solar gain.