{"id":"vented-fiber-cement-soffit-not-ember-vent","license":"CC-BY-4.0","data":{"title":"Vented fiber-cement soffit is not by itself an ember-rated eave vent","kind":"not-an-ember-rated-vent","summary":"Perforated or louvered fiber-cement soffit panels are a cladding product. They are not a substitute for 1/16–1/8 inch noncombustible mesh or an ASTM E2886 listed vent where eave ventilation is allowed. Deschutes County’s R327 page flags soffits under 12 feet as a protected assembly.","asOf":"2026-08-23T00:00:00.000Z","scopeKind":"standard","scopeRef":"astm-e2886","relatedCategories":["vents"],"relatedStandards":["astm-e2886"],"sources":[{"title":"Fire Hardening Requirements (R327)","url":"https://www.deschutescounty.gov/1255/Fire-Hardening-Requirements-R327","publisher":"Deschutes County","sourceType":"official","accessedOn":"2026-08-23T00:00:00.000Z"},{"title":"2023 ORSC Section R327 amendment","url":"https://www.oregon.gov/bcd/codes-stand/Documents/23orsc-r327-amend.pdf","publisher":"Oregon Building Codes Division","sourceType":"official","accessedOn":"2026-08-23T00:00:00.000Z"}],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-23T00:00:00.000Z"}}