HHMMMMMM --- Sounds like my Keystone roofing system.
Our 2016 Cougar fifth wheel roof started just coming apart a few weeks ago. The plywood was actually loose from the front cap half way back the length of the trailer. The rubber membrane was billowing as we drove down the road.
We had trouble with this unit from the first day out. Keystone will not stand behind anything they build.
Wisely, the moderators here will not allow me to fully express myself about Keystone products. Suffice to say I do not own a Keystone any longer and will never say anything in support of their products.
See ya out there -----------
