Keep in mind that there are actually distinct manufacturers of stone coated metal roofing with variations between them. The stones in DECRA’s stone-coated metallic roofing solutions are called roofing granules. The granules are created from organic stone which was mined at a quarry, then crushed and screened to varied measurements. https://stone-coated-roof-tiles38147.eedblog.com/35419497/the-greatest-guide-to-stone-coated-roof-tiles