Imagine that everything is going smoothly on a 4,600-square TPO job, and then, when work is two thirds of the way done, someone decides that the roof needs a mechanical screen.

“Things get thrown at you time and again, you have to be responsive,” says David Pope, senior project manager and estimator for Kodiak Roofing and Waterproofing, Loomis, Calif. “You have to work closely with the building owner, GC and manufacturer; come up with a solution; and make it work,” he advises.