You never know what you're going to find on a roof until you start to tear it off. Watch GAF Senior Commercial Training Specialists Dave Scott and Wally Brown (Dave & Wally) as they discover an improper HVAC installation - and see how it can not only jeopardize roof integrity, but also cause delays on a reroof - in Part 7 of the Roofing it Right miniseries on installing a commercial roof, from start to finish.
Watch the full Roof Project from Start to Finish Miniseries.
