Roofing versus siding under SWCAA 476
Both are exterior, often nonfriable and frequently replaced together, yet the rule treats them differently. Cement siding is a suspect material, and once asbestos is confirmed or presumed the job is an asbestos project needing a Notice of Intent. Qualifying asphalt-based roofing is excluded from the definition of asbestos-containing material, so its removal needs no notice as long as its condition is documented.
The exemption is narrow. Cracked, brittle or crumbling roofing does not qualify, and cement-based roof shingles have no petroleum binder, so they cannot qualify either. Washington L&I certification and project notification rules are separate from SWCAA’s notice and should be checked for roofing jobs too.
When a garage or house is coming down, the siding is usually the first asbestos to go, and demolition asbestos survey and abatement explains that order. Interior materials are covered across Vancouver WA Asbestos Removal.