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Materials

392 products tracked against the live OSFM Building Materials Listing — issue and expiry dates, requirement matches, and a public log of every listing that quietly disappears.

Set your location in the header — Build opens the sourced rule for each part of the house, and nothing hides. What can go on the house →

Straight to: The explorer · Ten parts of the house · All 148 brands · Vents

The registry at a glance

Every status is derived from the cited listings by a published rule — never hand-assigned.

Listed 260 Active in the live OSFM BML — issue and expiry dates on every record. Open in explorer →

Attribute match 104 Manufacturer attributes satisfy a requirement's exact constraints — a computed match, labeled as such. The 146 requirements →

Lapsed 19 In the 2025 handbook, missing from the live BML — still marketed, no longer listed. The lapse log →

No listing required 9 Material classes — gravel, pavers, stone. Absence from the handbook is not a ban. Open in explorer →

Verified against the live BML · 2026-08-25.

Browse by assembly

Each bar is the category's real compliance split — listed · attribute match · lapsed · no listing required.

Vents 27 Roofing 48 Windows 27 Doors 26 Siding 126 Decking 69 Eaves 21 Gutters 15 Fencing 25 Landscaping 11

More ways in

Brands148

Every manufacturer and listee, with per-brand listing health — active, lapsed, and expiring.

Vents

The national floor for ember-resistant vents — quoted rule, then product cards.

Requirements146

Place-keyed constraints quoted from code and guidance — each with the products that match.

How a status gets onto this page

Derived from the cited listings by a published rule, then re-checked against the live OSFM database on a schedule — that discipline is how 19 quiet disappearances since the 2025 handbook got caught, and the lapse log names every one. Attribute matches are computed from manufacturer documents against a requirement's exact constraints, and labeled as such. The published rule · Every record · Data CC BY 4.0