What Class A means

Roof coverings are rated Class A, B or C based on standard fire tests, with Class A the most resistant. The rating applies to the assembly as tested, including the underlayment.

Common Class A options

  • Many metal roofing systems
  • Many asphalt shingle products
  • Clay and concrete tile
  • Some treated or specially assembled products

Embers find the gaps

  • Ember-resistant vents
  • Closed gaps at eaves and ridges
  • Clean, non-combustible gutters
  • Clear pine needles from the roof

Rules

California's Chapter 7A wildland-urban interface rules apply in designated fire hazard areas. Nevada jurisdictions around the lake also have wildfire-related requirements. Check with your building department for your address.

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