Insurers often factor the type of roof and type of material into their rebuild costs. Roofs made of slate, tile, concrete shingles, or metal offer the best protection, but they're also the most ...
For flat roofs, the frequency depends on the sealant’s quality—inexpensive acrylic will need to be reapplied every 10 years, but high-end silicone may last up to 50 years. Wood roofs ...