Hawaii building codes for roof replacement
Hawaii has no mandatory statewide residential code. What applies depends on the jurisdiction that issues the permit.
The unamended 2021 IBC automatically became the new Hawaii State Building Code by operation of law on 10/23/2022, two years after IBC's publication date of 10/23/2020. The Governor's Ninth Proclamation Related to Affordable Housing (October 2024) suspended the law imposing the new Hawaii State Building Code upon Hawaii counties (HRS § 107-28). The Hawaii State Building Code is now an optional code for counties to adopt, until the suspension of HRS § 107-28 is lifted. It is likely that one or more counties will remain on the previous state building code. The previous State Building Code was based on the 2018 IBC (effective 4/20/2021) and 2018 IRC (effective 11/17/2020). The counties had two years from the effective date of each code to amend and adopt it themselves before it became automatically applicable as the county building or residential code. Prior to that, the 2012 I-Codes previously adopted by the counties remained in effect.
Adopted editions across Hawaii
- 4 counties on the 2018 IRC
Counties in Hawaii
County pages for Hawaii are not published yet. The adoption data above covers the whole state.
Adoption data: FEMA Building Code Adoption Tracking (BCAT).