At last, the completed tiles are oven-baked to ensure the stone chips continue to be completely preset towards the tiles and to improve longevity. The stones in DECRA’s stone-coated steel roofing products are referred to as roofing granules. The granules are manufactured from purely natural stone which was mined at https://stone-coated-roof-tiles46553.wikififfi.com/1999665/top_guidelines_of_stone_coated_roof_tiles