Different TT construction
It seems that the industry is slowly moving away from wood stud, fiberglass insulation and aluminum siding to the fiberglass skin, aluminum tubing, solid foam for wall construction. Both have their p...
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Actually, in the case of the floor we are all talking about, it really is about materials. Anecdotally at least, the "styrofoam" floors don't seem to hold up well at all. And that gets compounded by stretching the distance between joists. That's just one area I don't think I could compromise on if I intend to own the RV for long term, which I typically do.
