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Yup. The only defense against firebrands is to build such that your house won't catch fire in a rain of firebrands. Locally, a combination of stucco and concr
by LorenPechtel 5y ago
Yup. The only defense against firebrands is to build such that your house won't catch fire in a rain of firebrands.
Locally, a combination of stucco and concrete tile roofs can make a house basically immune to fire rain--but concrete tile roofs are not an option in most places.
- Syonyk 5y agoYou don't actually need non-flammable roofing - just a roof rated for the fire type. Check Class A roof tests. A lot of asphalt shingles, properly installed, actually are Class A fire rated - which is a 12x12 2kg grid. https://www.builddirect.com/learning-center/building-materials/roofing/roof-fire-ratings-guide/ https://www.builddirect.com/learning-center/building-materia... Interior corners on the roof or house tend to cause problems, though. Debris builds up and ignites, and just impinges on the siding until you light something behind it. You can also have firebrands entering through attic vents and bypassing the roof - there are vent types that are resistant to this, but tend to cost a good bit more. Why we don't do this in urban wildland interfaces... no idea.
- viraptor 5y agoOr keep the roof wet. As long as your water supply exists, roof sprinklers work. They're popular in Australia with people living in bushfire prone areas. https://build.com.au/roof-sprinklers https://build.com.au/roof-sprinklers (It also helps that bush properties have large water tanks attached to them)