How do I treat valleys, walls, vent pipes, skylights, fireplaces, etc.? Renaissance Sheet Metal manufacturers and sells all necessary flashings and accessories for a total metal roofing package. When a standard flashing will not do, we will make a custom one to provide full roof protection. Renaissance Sheet Metal is known for its expertise in flashing and detail work. We can install flashing with manufactured details or we can fabricate custom flashing for any difficult roof plan.