Coatings are not a listed R327 wall-covering path

ahj-does-not-accept

ORSC R327 lists noncombustible, ignition-resistant, heavy timber, log, or tested wall assemblies. Paint-on fire coatings are not in that list. Presenters at the 25 June 2026 Central Oregon Fire Hardening Codes Seminar stated coatings are not accepted to meet R327. Confirm with the local building official.

As of 2026-06-25. JSON (CC BY 4.0)

Sources

2023 ORSC Section R327 amendment — Oregon Building Codes Division (official). Accessed 2026-08-23.
Central Oregon Fire Hardening Codes Seminar — City of Bend Building Safety and Deschutes County Community Development (ahj-interpretation). Accessed 2026-08-23.
Public seminar at Riverhouse Convention Center, Bend, 25 June 2026. FireApproved cites the event and does not host the slide deck.

Coatings are not a listed R327 wall-covering path. FireApproved. https://fireapproved.com/findings/coatings-not-accepted-r327-seminar-2026/. As of 2026-06-25.