Originally Posted by NC Roamer
Our 2014 Greyhawk has an Alpha Ply TPO roof membrane. Last month I noticed several air bubbles beneath it and sent a video of me pushing them about to the service manager at my dealer. He said that was normal in very hot weather as the roof membrane expanded. He also noted that if the roof was installed to be skin tight in hot weather, it could split as it contracted in winter. Made sense to me.
What is funny is that, some have ripple, some have no ripple, some have bubble, some have no bubble, some even have the membrane laid out without ripple and bubble....and guess what, they all expand and contract.... the only thing expanding in those shop is tolerance in a work process, thats what make our roof unique