Spectrally Selective Glazing

Spectrally selective glazing is high-performance glazing that admits as much daylight as possible, while preventing transmission of as much solar heat as possible.

Spectrally selective glazing significantly reduces building energy consumption by controlling solar heat gains in summer, preventing loss of interior heat in winter and allowing occupants to reduce electric lighting use by making maximum use of daylight. The United States Department of Energy has established a Light-to-Solar Gain ratio of 1.25 as the minimum measurement to be classified as “spectrally selective glazing.” The calculation of spectrally selective glazing follows the formula described in the “Light-to-Solar Gain” definition.