Asphalt Roofing Shingles (PAH Exposure During Installation and Weathering) — household safety profile
Moderate riskAsphalt roofing shingles containing oxidized bitumen, fiberglass mat, and mineral granules.
What is this product?
Asphalt roofing shingles containing oxidized bitumen, fiberglass mat, and mineral granules. Installation workers exposed to PAHs from heated asphalt and shingle dust. Pre-1980 shingles may contain asbestos. Weathering releases PAH-containing microparticles into stormwater runoff — documented source of urban waterway PAH contamination. Coal tar sealant (used on driveways adjacent to roofs) contains 50,000 ppm PAHs vs 50-100 ppm in asphalt shingles.
What's in it
Click any compound name for its full safety profile, regulatory consensus, and exposure data.
Bitumen Component
Red flags — when to walk away
- Aging infrastructure without inspection or testing — Degradation increases contamination risk over time.
Green flags — what to look for
- NSF or third-party certification — Independent testing for safety standards.
Safer alternatives
- Metal roofing — zero PAH, recyclable, longest lifespan
- Clay or concrete tile — inert, no organic compounds
- Synthetic slate — recycled polymer, no asphalt
Frequently asked questions
Are there safer alternatives to Asphalt Roofing Shingles (PAH Exposure During Installation and Weathering)?
Yes — consider: Metal roofing; Clay or concrete tile; Synthetic slate. See the Safer alternatives section above for details.
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Open in home View raw API dataReference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →