Q: My neighbor has a slate roofing. It costs a lot more, but they tell me it is supposed to last forever. Why don't more people install slate roofs?
A: Slate roofing does last much longer than asphalt shingle roofing,
though not forever.
Depending on the quality of the slate, the roof may last 50 years or more. Slate does, however,
cost a lot more initially, and because it is brittle, a slate roof may require more repairs over time.
There are very few people skilled in slate repair work, so it can be difficult to get repairs done.
Among those who opt for slate roofs, most do so because it is perceived to be a higher-end product. It is
also likely to be on only the most expensive new homes.
If you already have slate, you're usually better off repairing it rather than replacing it.
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