Duro Torch Mineral is a bituminous plastomeric torch-on waterproofing sheet membrane. It is manufactured from a compound based on a selected distilled bitumen modified with atactic polypropylene (APP) and reinforced with a high strength non-woven spun bound polyester fabric. The upper side is finished with a uniform layer of coloured slate chips. The combination of a high performance polymer bitumen and non-tear polyester reinforcement provides a durable solution ensuring good flexibility at low temperatures and excellent heat and UV resistance.