Oregon / Eaves

Eaves in Oregon

Local option Not adopted here that we can source. Your county could adopt ORSC R327.

For Oregon eaves, the requirement for Oregon eaves is ORSC R327 noncombustible underside. On Oregon eaves, it is shown as available for local adoption. Read the Oregon eaves rule, then compare 1 matched Oregon eaves product.

Before Oregon eaves work begins, review Oregon eaves project checks. Those Oregon eaves checks flag scope still to confirm. The Oregon eaves links keep the rule and product list together.

The rule

Available for local adoption “The exposed underside of rafter or truss eaves and enclosed soffits, where any portion of the framing is less than 12 feet (3658 mm) above grade or similar surface below, shall be protected by one of the following: 1. Noncombustible material.”

ORSC R327 noncombustible underside. Where locally adopted, Oregon R327 includes noncombustible material as one protection path for specified eaves, soffits, patio and porch ceilings, floor projections, and underfloor areas.

Products matching the published local-adoption option

Available for local adoption Product matches below are limited to eaves and trace to the named requirement.

Additional products matching the model-code floor

Model code Product matches below are limited to eaves and trace to the named requirement.

No sourced eaves product in this directory yet matches the model-code floor.

Additional products matching the voluntary program

Voluntary program Product matches below are limited to eaves and trace to the named requirement.

No sourced eaves product in this directory yet matches the voluntary program.

Open checks for this answer

These checks stay open because the sourced instrument leaves them to the official record, not because this page skipped them:

  • Whether a local body has adopted the published instrument.
  • The official boundary that would put a parcel inside the application.
  • Confirmation from the building official for this project.
  • Whether this project type is in scope of the instrument.

No exact local application record is normalized for this node.

Every sourced row for this part of the house

  • Available for local adoption ORSC R327 noncombustible underside — Where locally adopted, Oregon R327 includes noncombustible material as one protection path for specified eaves, soffits, patio and porch ceilings, floor projections, and underfloor areas.
  • Model code 2018 IWUIC Class 1 noncombustible eave — The unamended 2018 IWUIC permits ignition-resistant material on the exposed underside of Class 1 eaves and soffits; Section 503.2 includes noncombustible material in that class.
  • Model code 2018 IWUIC Class 2 solid eave enclosure — The unamended 2018 IWUIC specifies solid material at least three-quarter inch thick around combustible eaves, fascias, and soffits in Class 2 construction.
  • Model code 2021 IWUIC Class 1 noncombustible eave — The unamended 2021 IWUIC permits ignition-resistant material on the exposed underside of Class 1 eaves and soffits; its ignition-resistant-material definition includes noncombustible material.
  • Model code 2021 IWUIC Class 2 solid eave enclosure — The unamended 2021 IWUIC specifies solid material at least three-quarter inch thick around combustible eaves, fascias, and soffits in Class 2 construction.
  • Model code IWUIC Class 1 noncombustible eave — The unamended 2024 IWUIC model code permits ignition-resistant material on the exposed underside of Class 1 eaves and soffits; Section 503.2 includes noncombustible material in that class.
  • Model code IWUIC Class 2 solid eave enclosure — The unamended 2024 IWUIC model code specifies solid material at least three-quarter inch thick around combustible eaves, fascias, and soffits in Class 2 construction.
  • Voluntary program IBHS Base six-inch wall-base protection — The current IBHS Base standard specifies at least six vertical inches of noncombustible material at the base of exterior walls.