Glutz for the Roof.
In Western Countries, Such Elite Material is Called Slate. For us, Slate are Wavy Sheets of Asbestos Cement, Prohibited as Carcinogenic Due Dangerous Dust of Asbestos in Many Countries. European Slate is a Type of Roofing Material from Smooth Tiles of Natural Shale of Various Shapes. Slandsy Roof is Very Expensive.