Del Castillo Phyllite

Much stronger than a slate, this stone has some history behind it.  Quarried exclusively in Segovia it hails back to the1500’s when the king of Spain, Phillip II decreed it should be used on all of the royal buildings in Madrid.  Boasting as being the oldest quarry in Spain it is the only true unfading dark gray in the world it makes for a beautiful roof that if installed correctly will last for well over 100 years.