Thanks for all of the replies.
I have reached out to Northstar and am awaiting a response. I will post their answer once I receive it.
SidecarFlip: Don't be a hater on the VHB tape! I have it on my motorhome and it works better than even I imagined. I tried to remove one of the Z brackets after installation and I couldn't budge it! My only concern with using it in this application is that the laminate construction of this type of roof might lead to failure, pulling the outer skin apart!
More to follow
Bill
