Definitions for "Solar Heat Gain Coefficient"
(SHGC) the fraction of solar radiation admitted through a window or skylight, both directly transmitted, and absorbed and subsequently released inward. The Solar Heat Gain Coefficient has replaced the shading coefficient as the standard indicator of a window's shading ability. It is expressed as a number without units between 0 and 1. The lower a window's solar heat gain coefficient, the less solar heat it transmits, and the greater is its shading ability.
An indicator of the amount of solar radiation admitted through and absorbed by a window and subsequently released as heat indoors. SHGC is expresses as a number between 0 and 1- the higher the number, the more solar heat the window transmits.
The portion of solar energy entering a building through a glazing. The lower the number, the better the window prevents heat gain.