So, I noticed that KZ totally cheaped out on the front roof-to-cap seam on my '17 Durango 1500. Silicon bead along the seam, covered by a 1+" wide seam of Dicor, EXCEPT for a gap of 3-4" at each end,...
Clean it up well and go with the Eternabond tape. It will be a one time repair for as long as you own the trailer if you do it right. Mine is going on 14 years. Barney