: Natural slate is significantly heavier than other materials, weighing up to 1,870 pounds per square (100 sq. ft.) compared to 350 pounds for asphalt. Before buying, a structural engineer must confirm your home can bear this load. Material Types :
: Durable and fireproof with a 75–200 year lifespan. Standard thickness is typically 3/16" to 1/4" . buy slate roof tiles online
: Slate quality varies by region. Hard slate from Vermont or New York typically lasts longer (75–150 years) than soft slate from Pennsylvania (50–90 years). Most domestic slates "weather" (change color slightly), while many imported slates are non-weathering. Online Buying Checklist Which Is The Best Roofing Tile: Slate, Clay or Concrete : Natural slate is significantly heavier than other