total-system-solar-heat-gain---coefficient-shgc
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Total System Solar Heat Gain Coefficient (SHGC)
NCC
for the purposes of Volume One, means the fraction of incident
irradiance on a
wall-glazing construction
or a
roof light
that adds heat to a building’s space.
NCC
for the purposes of Volume Two, means the fraction of incident
irradiance on
glazing
or a
roof light
that adds heat to a building’s space.