A third option therefore is to go about seeking a specialist commercial roof maintenance company, but to get any sense out of them or at least anything you can understand you will need to learn a lot of the industry terms and jargon. So let’s first look at what type of roof... you have? Table of Contents Types of Commercial Roofs. Spray Polyurethane Foam Roofing. Single-Ply Membrane Roofing. Metal Roofing. Shingle Roofing. Built-Up Roofing. Some things you should know about Commercial Roofing. EnMás