No roofing material is truly fireproof. But most modern asphalt shingles are highly fire-resistant, and that matters in parts of Texas where grass fires and wildfires spread quickly in dry, windy weather.

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How roofs are rated for fire

Roofing is tested and rated for fire resistance in three classes:

Class A: the highest rating, for severe fire exposure

Class B: moderate fire exposure

Class C: light fire exposure

The rating depends on the whole roof assembly, including the underlayment and decking, not just the shingle.

Where asphalt shingles fall

Most fiberglass-based asphalt shingles sold today carry a Class A rating when installed as the manufacturer specifies. The fiberglass mat does not burn the way the older organic, paper-based mats did.

How other materials compare

Metal: noncombustible, typically Class A as an assembly

Clay and concrete tile: noncombustible, typically Class A

Slate: noncombustible, typically Class A

Untreated wood shakes: the most flammable. Treated shakes can reach Class B or A, but the treatment can wear off over time.

What else affects fire risk

The rating is only part of it. Most roof fires start from embers landing in the wrong place:

Dry leaves and pine needles in gutters and valleys

Gaps at the eaves and vents where embers can get into the attic

Overhanging branches

Firewood or brush piled against the house

Lowering the risk

Keep gutters and valleys clear, especially in dry months

Use ember-resistant screens on attic vents

Trim branches back from the roof and chimney

Keep a clear area around the house free of dry brush

Have the chimney cleaned and its spark arrestor checked if you burn wood

Questions to ask about your shingles

What fire rating does this shingle carry, and under what installation?

What underlayment does the rating require?

Does my insurer offer anything for a Class A roof?

We install Class A rated shingles from GAF, Owens Corning, CertainTeed, Atlas and IKO. Call (855) 741-ROOF with questions.

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No cost, no obligation, and a photo report you keep either way. If there is nothing wrong with your roof, we will tell you that.

We answer or call back in under 15 minutes during business hours.

Free inspection scheduled within 24 hours.

Emergency tarping on site the same day.

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Water coming in right now? We tarp same day.

Are Asphalt Shingles Fireproof? What You Need to Know