The main reason we calibrate our slate is for creating a uniform thickness in our products. This makes it easier for installation, calculation, packing, transport,

Since before the middle ages the empires and kingdoms have used the cladding of Natural Slate for a long lasting solution for roofing of palaces,

In the city centre of Hoofddorp, the closest town to airport Schiphol-Amsterdam in the Netherlands this new group of buildings was built. The buildings consist