I will assume you are referring to modified bitumen, torch-grade membrane.
Application of this membrane requires a special torch which generates a tremendous amount of heat and is a very real threat to start an uncontrollable fire. Proper training is a "must" before attempting this application. Many insurance companies exclude coverage for this application, even to commercial contractors, on this type of roof.
Application of this membrane requires a special torch which generates a tremendous amount of heat and is a very real threat to start an uncontrollable fire. Proper training is a "must" before attempting this application. Many insurance companies exclude coverage for this application, even to commercial contractors, on this type of roof.