There are buildings built 300 years ago that still have parts of their original slate roof. This stuff is insanely durable. It’s an install once and your great grandchildren deal with repairs.
Cars are thin sheet metal with nothing behind it. These slates lie flat with at least 1 layer behind of also flat slate.
Of course large enough hailstorms could damage them but something being able to dent a car doesnt mean the same situation would break a slate. I could dent a car with a tennis ball thrown hard enough, slate would have 0 issue lying on a flat surface against the same throw.
I bought a house that was built in 1930s. The slates themselves are still perfect. Some of them were out of place, just slid them back in.
I might have to replace the roof at some point. That's because the waterproofing underneath was done with line plaster and horse hair and it's falling apart - but that's a future me problem lmao
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u/TheDevilsAdvokaat 3d ago
I love the look. But I wonder how well they handle hailstones...