A skylight is being selected for a conditioned space. Under the energy code, which two rated properties are MOST directly regulated to limit heat gain and loss through that skylight?

Giải thích

The energy code regulates fenestration primarily through the U-factor (heat transfer) and the solar heat gain coefficient (SHGC), which control conductive loss and solar gain. Acoustic rating, frame color, glass thickness, impact rating, and hinge type are not the energy metrics used to limit skylight heat transfer.