Slate

Slate roofing tile has a long and storied history, and is generally known as one of the highest quality, longest lasting roofing materials on the market. On the other hand, the high cost, difficult installation, and relative fragility of slate roofing tile means it's not ideal for everybody.

Slate roofing tiles offer more choices than most building owners realize, available in varying sizes and thicknesses, as well as a wide range of colors, including gray, green, purple, black, red, and mottled tiles that sport several colors mixed together.

150 years is a reasonable expectation of a slate roof's longevity if the roof is properly constructed. That's a big plus in an industry where many roofing systems are lucky to last 20 or 30 years before needing replacement.