I recently saw a 5er with several feet of his rubber roof inflated and flapping. Still attached though, I was impressed at the durability.
As for the OP, it looks like they came out the other side, must have been going at speed for that to happen. Makes one wonder what the rest of the story is.
I need to measure mine, I went under a marked 14' bridge recently and cringed as I approached it. Made it through unscathed but I couldn't help wondering if it was by an inch or a mile.
Now-2014 Sierra 346RETS 5er BUB
Then-2002 Keystone Springdale 286RLDS TT
Nights camped in 2014-28, 2015-127, 2016-10