I have a 2003 Coleman Utah with the Alumnitite roof. Ive searched the forum and now know these are problematic. My plan is to simply remove the roof rack, clean and then tape the seams. I currently have some sag, as seen in the picture. It doesn't seem bad to me but I'd like another opinion, currently it sags 1/4" give or take but only on the right side, ac unit doesn't appear to sag at all and left side is fine. There is some water staining on the inside canvas under the sag but nothing major. Can I skip a complete rebuild here? Or is this thing just going to slowly come apart on me? Thanks for the help guys!