TL;DR
A Class A fire rating is the highest fire-resistance classification a roof covering can earn under ASTM E108 or UL 790 testing, indicating it withstands severe exposure from burning brands without igniting the deck. Asphalt shingles, concrete and clay tile, and most metal panels achieve it, sometimes only as part of a tested assembly with specific underlayment.
What it means
A Class A fire rating is the highest fire-resistance classification a roof covering can earn under ASTM E108 or UL 790 testing, indicating it withstands severe exposure from burning brands without igniting the deck. Asphalt shingles, concrete and clay tile, and most metal panels achieve it, sometimes only as part of a tested assembly with specific underlayment. Insurers and wildfire-zone building codes frequently require this rating, and it appears on the shingle wrapper and product data sheet.
Where it sits in the glossary
Class A fire rating is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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