A 4.5 mm thick, torch applied, polyester reinforced modified bitumen roof membrane which is quickly and easily installed to both old and new roof surfaces. It’s thicker, tougher and stronger than most other single-ply materials. Requires no adhesives. Heat welding insures monolithic, watertight seams that do not come apart.
It comes in other sizes like 3mm and 4mm plain and 3mm, 4mm and 4.5mm mineral with sandy chipping on top. It has green, red and black colours mostly to choose from.