Believe it or not, most owners/managers do not know what type of roofing systems they have on their buildings, what type and thickness of insulation they have, or even the easiest way to access the roof on a particular building. It is difficult to manage the roofing life cycle if you don’t even know your roofing system or your expectations for it. Maintaining an up-to-date inventory of all buildings and their roofing systems is vital in maintaining one’s roofing assets.