Delamination Mac 228 D

[wilt66]

This last weekend upon setup at our campsite, I noticed that the outer skin panel on the dinette was warped. Upon inspection I noticed the bottom was not attached( I could see straight up behind the Panel. Luckily we didn't have rain on trip out. I met a nice family who just so happened to have a tube of caulk. My question to anyone out there in the know, are these panels not supposed to be glued on to structure?. Because there is absolutely none and no sign that there has ever been any. The only thing holding the panel is the Trim as well as Hardware such as the pull handle, hot water tank cover, access door and the sealant used. My unit is a 2011 Flagstaff Mac 228 D that we purchased brand new, nothing but problems with this unit. What can I use to fix this?