I found a video about Gulf Stream coaches. It was an advertising video so I had to endure a lot of propo stuff, but I did get to see the factory and how they go together. Looks like they put blocks of styrofoam in the aluminum frame which is good. It won’t retain water like fiberglass. Wish they would shoot polystyrene spray in, but I’m dreaming now. That would eliminate all air flow and make a waterproof shield, and increase structural strength. I see how mistakes are made. The assembly line is moving so fast there is no time to inspect one’s work.
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