Unfading black slate is the most common color for natural roofing slate. Natural deposits of the unfading black material are found in Virginia, Spain, Canada, and Asia. One of the largest of these deposits is found in Northern Spain.

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The deposit of Spanish slate has been locally quarried for several hundred years. Slate was used on low slope buildings in an unstructured format as a roofing material. This stone has helped protect these buildings and the history they embody.

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Today's modern industrialization has helped to produce a slate supply of tremendous availability with a consistency in production. This material covers prominent structures throughout the world, and will continue to protect our history for generations to come.