I've personally had 6 DRV's starting with a 2007 unit. Never had a problem with the roofs, however I did have a 2014 that 1 corner of the round corner lift. A screw and a bunch of roof sealant took care of it. And it seems to me that I'm on the roof just looking a lot. Good luck. Have a new 2021 on the way!!
Bill
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