Manufacturers
A manufacturing building asks more of its roof than any shell around it. Process exhaust discharges onto the membrane, heavy equipment hangs from the structure below, humidity and temperature are held on purpose, and production does not stop for a leak. For a plant operator in San Marcos, TX, that makes the roof a production asset whose failure costs shifts, not just ceiling tiles. The budget year has to carry both the roof and the schedule, and the two are best planned together. The plant roofs go into an inventory sorted by what happens beneath each section, and the replacement queue that comes back weighs remaining service against the cost of an interruption.
A roof that fails during a run is the most expensive way to learn its condition.