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.  Slate roofing tiles are cut from metamorphic rock which is highly durable, making it a perfect roofing material to be split in one direction into sheets of various thicknesses. It is cut and trimmed mostly by hand labor into the required sizes and thicknesses. A slate roof is really a custom-made job and its use gives a character to a building unlike that of any other type roofing.