This thread raises an interesting question in my mind. (Of course, maybe it's interesting only
mind... lol) Here goes...
Molded FG trailers are generally made in 2 pieces which are joined by fiberglassing across the seam; the added thickness built into the seam can make that section even stronger than the rest of the shell, and it becomes as if it were one continuous piece.
Ok, couldn't FG trailers be more economically built by molding several pieces
and glassing them together? Let's say, for example, that one built a rectangular trailer out of flat panels. Flat panels for front, rear, both sides, top, and perhaps bottom. The panels would be molded with extra thickness at the edges, and the edges would be joined by fiberglassing across. Wouldn't those seams be just as water-resistant as the belly seam on a Scamp
, or the vertical seam on a Burro
? The advantage would lie in the ease and cost of interior build on a conventional assembly line, and possibly less complicated, less expensive molds.
The other thought I had was whether current non-molded (so-called "fiberglass sided") trailers could have their seams glassed over. But I doubt that would work, because the 'fiberglass' is really a very thin layer that is more gelcoat and probably very little fiber content. It would lack the strength to avoid forming cracks along the area where the seams were fiberglassed over, I think. Thus the water leak danger and subsequent delamination issues would still exist. Gilles, I think the Roulotte falls into this category: a stick built trailer with thin gelcoat laminated to a core of some other material (probably wood).
But if companies just molded some flat FG panels with thicker edges and then glassed them together into a box shape, it seems like a better trailer would result. I mean, better (more leak resistant) than the stickies they currently make. And more plentiful and affordable than our current selection of eggs.