is always an irreproducible artwork of original, natural beauty. It creates from every roof and every building a unique creation of lasting value.When handicraft becomes art.The attraction of the wild covering is hiding in the aesthetics of contingency. Compared with every other natural slate covering method the stones will be used unhewn with their partly bizarre shapes. The stones will be prepared piece by piece by the slater only on the roof and adjusted to the living artwork. Although it apparently acts easy and accidentally, it follows the complex requirements of the laying technique. The stones have to be formed exactly and adapted into the covering design, so they protect reliably against wind and weather. The wild covering challenges the real master, who understands, how to unify function and aesthetics in perfection. It is an art controlled only by a few slaters.