Just wanted to share this to add to your list of things to keep an eye out for. Where the slide out rubber roof bends around the corner from horizontal to vertical I have a few nicks thru the rubber. I don't know how it happened, but I just wanted to share this. Maybe, chaffing when moving slide in and out, maybe an ill placed ladder, maybe a cat crawing on the roof. Opened it up, removed 4 sq. ft. of roof board, replaced with new board and closed it up. Eterabond, and RTV sealant seems to be have fixed it for now.
2008 Keystone Cougar 31BHS
2008 Ram 3500 Laramie Quad Cab 4x4
Inferno Red, Khaki leather, CTD, 68RFE
Trailer tow, Anti-spin, Sunroof, Tube steps, DVD based GPS, etc...