Class A Fire-Rated Roofing in Los Angeles, CA

Wildfire changed how Los Angeles looks at roofs. CAL FIRE reports the January 2025 Eaton Fire destroyed 9,419 structures and the Palisades Fire destroyed 6,845, and the 2018 Woolsey Fire destroyed 1,643. Wind-blown embers are a leading way homes catch fire in a wildfire, and the roof is the largest surface they land on. Choosing Class A fire rated roofing as part of a roof replacement in Los Angeles is one of the few protective steps that happens once, during the build.

What a Class A re-roof includes. The written scope lists the full assembly, not just the top layer:

• The listing that matches your deck, underlayment and covering
• Tear-off, deck repair and the listed underlayment
• Edge metal, metal valleys and flashing at walls and chimneys
• Ember-resistant vents and eave closures, priced as their own lines
• Permit responsibility and a clean-gutter check before fire season

Why fire-rated roofing matters in Los Angeles

A roof does not have to burn to be the weak point. Embers can travel well ahead of a fire front and collect in gutters, valleys, vent openings and gaps under tile. Once inside an attic, they can start a fire the exterior never shows. The goal of a Class A roof is to resist flame and burning brands on the surface, and the goal of the details around it is to keep embers from getting underneath.

What makes a roof Class A rated?

A Class A rating comes from standard fire testing, and it applies to an assembly. Roof coverings are rated A, B or C, with A being the most resistant. Many fiberglass-mat asphalt shingles, concrete tile, clay tile and metal roofs can reach Class A when they are installed the way the listing says. Wood shake and wood shingle coverings are different. The City of Los Angeles prohibits them citywide, with a narrow exception for small repairs.

The practical point is simple. A product name on a box is not enough. We ask for the listing that matches your deck, underlayment and covering, and we price that full assembly.

Wildfire roof rules for Los Angeles: fire zones, Chapter 7A and the WUI code

Rules depend on your address. The City of Los Angeles requires Class A roof covering in the Very High Fire Hazard Severity Zone. California's wildfire building codes, including Chapter 7A of the building code and R337 of the residential code, set roof, vent and eave standards in designated zones. The California Wildland-Urban Interface Code (Title 24, Part 7) took effect Jan 1, 2026, so ask your building department which chapter your permit follows.

State fire hazard severity zone maps were updated in 2025, adding Moderate and High zones in local areas. Check your address on CAL FIRE's viewer rather than relying on a neighbor's answer. Other cities and unincorporated areas use their own building departments.

LADBS also offers an Express Permit path with no plan check for some re-roofs. Whether yours qualifies is a question for the office.

Which roofing materials can reach Class A?

Several can, and each has its own watch point.

If your roof is tile, our tile to shingle conversion page explains the other path.

Ember-resistant roof vents and edge details

Vents and edges are where ember paths open up, so they get the same attention as the covering.

• Vents: fine-mesh, flame-resistant vents replace older screened or louvered ones
• Eaves: metal closures fill gaps under tile, and drip edge covers the deck edge
• Valleys and wall joints: metal flashing, not exposed felt
• Gutters: leaves and needles dry out fast, so clean them before fire season
• Skylights and chimneys: flashing is checked, not skipped

Our post on protecting roof vents from birds and embers goes into the vent side. For gutters, see gutter guards.

How a Class A re-roof is done, step by step

The order keeps the rated assembly intact from deck to cap.

1. Confirm the address. We check CAL FIRE's viewer and the building department's rule for your lot.
2. Inspect the existing roof. We photograph the covering, vents, eaves and flashing, and measure the roof.
3. Choose the assembly. You get the listing for the covering, underlayment and deck combination in writing.
4. Strip and repair the deck. The old roofing is stripped and soft boards are swapped out.
5. Install the full assembly. Underlayment, edge metal, valleys and the covering go on as the listing specifies.
6. Replace vents and close gaps. Ember-resistant vents, eave closures and clean gutters finish the job.

What affects the cost of a Class A fire-rated roof?

Cost depends on the assembly you choose, the roof's size and slope, and how many vents, eaves and valleys need work. Tile, metal and extra underlayment layers move the number up compared with a basic shingle assembly. Replacing vents and adding eave closures are separate lines. Once a replacement passes half the roof area, a cool-rated product is also required, so the Class A listing and the cool rating both need to fit.

Our quote comes in writing after we see the roof. Ask any roofer for warranty terms in writing too, and read what they exclude.

Why Clear Shield for Class A fire-rated roofing in Los Angeles

Habits that carry over to any code-driven re-roof show up in Van Nuys reviews: hidden problems found during the work, materials explained, and the permit process handled. One customer mentions bird blocking, a gap-closing detail that matters for embers too.

We cover the foothills and canyon edges around the Valley. Calabasas sits beside hills the 2018 Woolsey Fire burned, and many of its homeowner association tracts specify concrete tile. Santa Clarita has brush exposure and hot, dry summers. The mountains above La Cañada Flintridge burned in the 2009 Station Fire, and Arcadia has large custom homes with tile roofs. Zones are set by address, so check yours with the state viewer first. Related reading: solar-ready roof replacement and our re-roofing overview. For a longer explainer, see Class A roofs and Los Angeles fire zones.