Hello all---asking this question again in search of more information please. Last weekend was really nice weather here so I uncovered my pup and removed the old, cracked & partially missing vinyl seal that goes in the metal track down the center of the roof. Cleaned all the dirt & gunk out of the track and cleaned the area around the center seam with alcohol----and see that I need to replace a few missing/bent screws. I was thinking of pulling all the screws out, putting a dab of Dicor in each hole, putting screws back in & replacing the vinyl strip with new, then caulking the seam with Dicor, but then I thought maybe it would save a lot of time and future caulking if I just put a strip of eternabond down the entire center seam. I think I may do the same thing around all the ABS corner caps too because the PO had some hail damage from a storm last year and there a few big dents in the alumitite roof right where the ABS caps are attached. No puncture holes or roof leaking--thankfully they had it covered with a tarp. Thoughts/advice please? I'm looking for the longest lasting least expensive maintenance/repairs. Thank you!