Torch down roofing is also know as a bitumen torch down roofing system. bitumen is a material that is considered necessary for waterproofing, roofing and road construction. bitumen torch-down roofing is a type of roofing that involves the use of the asphalt. it is a substance that we use for the construction of roofs.
the underlayment of the torch down roofing system consist of the materials that are used in it. the underlayment of flooring means a thin layer of a specified material. it can be made up of a felt,foam,rubber or fiber. majorly, this roofing system requires bitumen sheets. all these sheets are rolled in your roof. it also consists of bitumen. you also need a polymer because you must mix bitumen with the polymer. the roofing membranes also includes some other materials. these materials include polyester and fiberglass.