Torch-on is used for waterproofing flat roofs or decks protected with timber or tile floating deck. High performance torch-on felt membranes; this is a heat applied bituminous sheet membrane that provides excellent waterproofing an UV resistance. A two layer system, First layer is called the base sheet which is fully bonded to sub straight with a bitumen primer, Second layer is called the cap sheet with granules of slate that give it a natural appearance. Suitable for light maintenance foot traffic only.