anyone had this Roof frame twist above end of spring happen, you can see it in the photo... I figure I need to add an external reinforcing aluminum box section, I can't let it stay like this. This is a new to us 2003 Aliner Scout. These Aliners really lack proper structural load paths, so I am not surprised.
BTW - I just measured up my roofs, front and rear. The front roof has larger aluminum sections, which is why the twist happened on the rear roof panel
I added TS 1"x1"x 1/16" x 7 ft. long in order to suppress the buckling on the edges of the deeper front roof edges. Pop rivetted in place. That should be the last roof reinforcement to compensate for weak design.