Time for a new roof. Hot day going down the road at 60mph your roof flapping in the breeze.......not a happy thought but this guy did a roof replacement on a brand new Grand Design who's roof blew off.
Watch a couple of his video's.......he's the guy I would want for a new roof.
He uses a 60 Mil. commercial grade TPO membrane with a 20 year warranty.
This video will show how shoddy RV roofs are put on:
I'm honestly considering when I buy a new trailer to just have him go ahead and put a good roof on right away. I am into small trailers (20-25ft) so the expense is still high but not as high as a leaking roof, delam/wood rot, mold eradication. PLUS he builds really sweet mounts for solar panels. The fact that he puts his name and date of install says a lot about his work.