You have mentioned a couple times the idea of "sandwiching" a metal rod or tube to support the roof. I guess I don't understand "sandwiching". Are you thinking of putting this beam inside the TM, under the ceiling, where it will be visible from inside the TM? Or are you thinking of opening up the rear edge of the shell, and inserting the beam inside the roof structure? How will you secure the beam to the sidewalls of the shell, which must, after all, bear the weight of the roof and any appliances such as the air conditioner mounted on the roof.
Do you envision the beam as being straight, or bent into the curvature to match the roof? I have a feeling you are taking on a fairly complicated task.
Bill
|