What are everyones thoughts on constructing the coach frame using aluminum (floor cross members, body framing, etc) and then covering the outside with aluminum plate that will be welded to the framing and have all the seams welded?
I would use spray foam insulation for the walls/ceiling and either bond the interior panels to the frame with VHB/Sikaflex or bolt wood fir strips to the frame and attach the interior panels to this.
Welding all the plate seams would ensure no leaks and essentially make the outer covering "one piece". Since everything would be aluminum weight would not be an issue but the durability should be much better than sheet metal or FRP panels. Thoughts?
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