Hello, I don’t have a tent trailer but I do have a Flagstaff Aframe that I had the dealer install a rack on the roof to carry my kayak. It’s a SportRack designed for tent trailers we installed two pairs of Yakima Hully Rollers that make loading much easier. However, the plastic brackets that hold the Hully Rollers to the bracket will not fit the SportRack so you will need to fabricate your own brackets. I suppose most people will mainly be interested in the rack itself rather than the cradles I have pictures in my photo album and will be posting pictures with the kayak on the roof shortly.
thanks for the info. I'm not sure what we'll do next year. We may put a roof rack on our minivan. I want to keep an eye on how much weight I'll be adding with rack/kayaks.