Commercial Roofing-Roofers Nottingham Published on September 25, 2020 in Roofing Materials-Asphalt ShinglesFull resolution (300 × 200) Next → The shingle top is then coated with stone such as mica, schist or quartz. The back of the shingle has sand, mica or talc, which helps the shingles stick together on the roof. Commercial Roofing-Roofers Nottingham September 25th, 2020
