Roofs (incl. vents)
Roof system are the most vulnerable area of your house because of the large surface area.
What does Class A fire rating mean
Recommended Materials
Property Checklist
Roof is made of Class A fire-resistant materials
Non-combustible or fire-treated underlayment is installed
Roofs, roof valleys are cleared from leaves, pine needles and other flammable materials
Flame- and ember-resistant are vents installed in all attic or roof openings.
Gaps around chimneys, skylights, and roof intersections are sealed
There are no loose or missing shingles or roof tiles where embers could get through
Roof slope and overhangs reduce ember accumulation.
The problem
Materials with this rating are highly resistant to fire and can prevent flames from spreading.
Building codes required Class A materials for roofs. Roof coverings that meet Class A rating “by assembly,” such as fire-retardant-treated wood shingles or shakes, must have an underlying material or a special installation technique to meet the acceptance criteria.
The roof is the most vulnerable part of a house in a wildfire because embers often land on it first, igniting debris and potentially setting your home ablaze. Even small gaps around vents, chimneys, or skylights allow embers to enter the attic, where fire can spread quickly throughout the house. Due to its large surface area, making the roof fire-resistant roof can be extensive and expensive. But keeping roofs, vents and gutters clean can go a long way to improve resilience.
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Heavy, non-combustible tiles that significant fire resistance and don’t ignite easily. However, they are heavy and may require additional structural support.
Naturally fire-proof
Thermal efficiency
Long life span
Heavier
High cost and labour
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Naturally fire-resistant and very durable, but it can be heavy and may also need additional support.
Top tier fire protection
Long durability
High cost and weight
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Fibre Glass
Mineral wool
Fire-treated natural fibres
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Affordable, high-protection
Most commonly material
Fire-resistant
Medium lifespan
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Long-lasting, durable and can withstand high temperatures and will not ignite, making it an excellent choice for wildfire-prone areas
•Durable
•Natural fore resistance
•Long life span
•Lightweight