“Gray is the most popular color for metal roofs, with shades like charcoal and slate gray being particularly favored for their versatility, modern aesthetic, and ability to blend seamlessly with ...
EN 12326, British Standard: BS 680 Part 2 Cupa Pizarras CUPA 14 is a non-carbonated slate formed by tectonic compression. Dark grey slate with thin laminations and a riven surface.