Hawaii Administrative Rules
Title 3 - DEPARTMENT OF ACCOUNTING AND GENERAL SERVICES
Building Code Council
State Energy Conservation Code
Subchapter 2 - AMENDMENTS TO THE 2018 ICC INTERNATIONAL ENERGY CONSERVATION CODE
20 - INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
Universal Citation: HI Admin Rules 20
Current through January, 2025
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.
Disclaimer: These regulations may not be the most recent version. Hawaii may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.