IECC Table R402.1.2 is added to the table:
Window SHGC Requirements
Projection Factor of overhang from base of average window sill | SHGC |
.25 | |
<30 - .50 | .40 |
[GREATER THAN OR EQUAL TO].50 | N/A |
Exception: North-facing windows with pf [GREATER THAN] .20 are exempt from the SHGC requirement. Overhangs shall extend 2 feet on each side of window or to nearest wall, whichever is less.
Haw. Code R. tit. 3, Building Code Council, State Energy Conservation Code, subch. 2, 20