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What are the Shading Coefficient and the Solar Heat Gain Coefficient?
- Oct 13, 2018 -

What are the Shading Coefficient and the Solar Heat Gain Coefficient?

These terms are mathematically related and both describe the solar energy blocked from passing through a glass material. The shading coefficient is the ratio of solar energy that passes through a piece of glass relative to piece of 1/8” clear glass (which has a shading coefficient of 1.0). Solar heat gain coefficient represents the solar gain through the glass relative to the incident solar radiation; it is equal to 86% of the shading coefficient. In either case, a lower number indicates improved solar control over the 1/8” clear glass baseline.