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Show the product on the drawings
Deschutes County will accept products from the California OSFM WUI handbook for ORSC R327 only when you list those products on the drawings and note where they install. Write the manufacturer, the model, and the listing program. A brand name is not a listed model. Presence on the handbook is not a permit. Absence from the handbook is not an automatic ban.
You are at intake with a handbook product and a blank schedule. Deschutes County wants the manufacturer, model, and listing program on the sheet.
Why it matters
The plans examiner stamps drawings. A hallway conversation is not the record. During a wildfire, embers enter the opening you actually built. If the sheet says “ember-resistant vents” and the crew installs last year’s catalog number, you have neither a listing nor a clear inspection.
How to read a listing covers the five document layers. This page is the drawing layer.
How it works
A listing body names a model, an ID, a date, and a category. OSFM Building Materials Listing category 8165 is WUI vents. The handbook row is not a brand in the abstract. It is the models on that row.
Deschutes County Building Safety says it has vetted that handbook as an accepted product list for R327 (county R327 page). The county’s own condition is that those products are on the drawings and noted where they install. A note in the project manual is not that condition. A cover-sheet logo is not that condition.
Oregon R327, where adopted, still allows a prescriptive mesh path on many openings, and a performance path that uses a vent designed to resist ember and flame (amendment PDF). The handbook is one way to show the performance path. It is not the only legal object in R327. Listing is usually voluntary. See OSFM listing is usually voluntary.
The paths
| Path | What you show on the sheet | What it is not |
|---|---|---|
| Listed handbook product | Manufacturer, model, listing program, listing ID from the current record, and a tag at the opening | A brand name. A spec-book-only line. A cover-sheet logo. Presence on the handbook. |
| Prescriptive mesh | Metal, corrosion-resistant, openings 1/16–1/8 inch, tight to the frame | Hardware-store 1/4 inch animal screen. An ASTM E2886 assembly. |
| Unvented attic | No attic ventilation openings on that drawing | Tape or foam in existing vents. See unvented attic. |
| Height exception | An eave, soffit, or cornice opening 12 feet or more above grade, where R327 allows it | A generic “per code” note with no height called out. See the 12-foot rule. |
| Alternate method | Oregon R104.11, written on the drawings with the authority having jurisdiction | A hallway conversation. |
What to put on the sheet
- Schedule. Manufacturer, model, listing program, listing ID from the current record, and the opening type (gable, soffit, foundation, ridge).
- Location. A keynote or tag at each opening that points to that schedule row.
- Same model in the spec. Do not let Division 08 say one SKU while the elevation says another.
- Submittal. The live listing record, not a brochure alone. Confirm it is current. Listings get suspended.
If the path is mesh, show the mesh recipe on the sheet, not a handbook model. Read mesh versus listed vents.
If the path is an unvented attic or a 12-foot eave opening, show that detail. Do not hide a missing product behind a generic “per code” note.
Example listed vent records on this site include BrandGuard gable vents and Vulcan gable vents. Open the product page. Follow the listing URL. Match the model. Do not copy an ID from memory. The vents category lists other 8165 records from the handbook ingest.
What people mix up
- Writing “BrandGuard vents” or “OSFM listed” with no model.
- Citing the handbook in a general note and leaving the openings untagged.
- Putting the product only in the spec book.
- Specifying from a screenshot or an expired listing.
- Using a listed ridge vent and leaving gable and crawlspace on 1/4 inch animal screen.
- Treating perforated fiber-cement soffit as an ember-rated eave vent. See Findings.
- Scheduling a paint-on coating as if it were an R327 wall covering. See Findings.
- Treating Deschutes County’s handbook path as statewide Oregon law.
The building official can still accept an alternate under Oregon R104.11. Put that alternate on the drawings. FireApproved is not the official.
How to check
- Is R327 adopted for this lot? See the adoption dataset and R327 versus CWUIC.
- Which path is on the sheet for each opening: mesh, listed assembly, unvented, or the 12-foot eave exception?
- If listed, does the schedule model match the current listing, including orientation?
- Does every opening on the elevations have a tag?
- Would an inspector in the field find the same model in the box?
Limits
This page does not stamp your job. Local practice in Deschutes County is not a rewrite of Oregon code and is not California CWUIC. The handbook also covers siding, roofing, gutters, and decking. This site’s live listed product records for that drawing check are mostly vents. Absence of a product table for another assembly is not a ban. Confirm the adopted code and the building official.
Related records
- Ember-resistant vents
- OSFM Building Materials Listing
- ASTM E2886
- How to read a listing
- OSFM listing is usually voluntary
- Mesh versus listed vents
- The 12-foot rule
- Unvented attic as a wildfire path
- Oregon R327 versus California CWUIC
- BrandGuard gable vents
- Vulcan gable vents
- Vented fiber-cement soffit
- Coatings are not an R327 wall path
Questions
Does the brand name on the cover sheet count?
No. Deschutes County wants handbook products listed on the drawings and noted where they install. A brand name is not a model. The model on the sheet has to match the current listing record.
The product is in the spec book. Is that enough?
Not for the Deschutes handbook path. Specs are not the drawings. Put the same manufacturer, model, and listing program on the drawing schedule and at the opening.
If the vent is not in the OSFM handbook, is it illegal?
No. OSFM states that listing is not a statutory mandate for most WUI products. Mesh is a separate prescriptive path. Absence from the handbook is not an automatic ban. The building official still decides.
What if I use mesh instead of a handbook vent?
Show mesh on the drawings. Metal, corrosion-resistant, openings 1/16–1/8 inch, tight to the frame. That is a different path from a listed assembly. Hardware-store screen is not an ASTM E2886 vent.
Do unvented attics or 12-foot eaves still need a listing on the sheet?
If that opening does not exist, or R327 allows the 12-foot height exception, show that detail. Do not hide a missing product behind a generic per-code note. Remaining openings still need mesh or a listed model.