"The trailer’s light weight is a product of how it’s built. Like all RVs, the foundation is the place to start and the one under this foamie is all aluminum. The welded aluminum chassis was put together by another friend and incorporates 13” tires on a solid axle. These are significantly larger than the 8″ tires that the Vespa is shod with.
From there the sidewalls and roof are all cut from 1″-thick block foam, which is a material many RVers may already be familiar with. Many smooth-sided RVs are a product of a welded “cage” with block foam between the ribs.
But the foamie is only block foam, no ribs. Well, not many. More on that later.
The sidewalls and roof are mounted in place and then a layer of canvas is literally glued on top of the foam with “tight bond” glue. At this point you use a warm iron to seal and help dry the layer.
Once the glue dries, the canvas layer becomes rigid and is then painted with waterproof latex paint. "
https://www.rvtravel.com/rv-review-vespa-foamie-trailer-1032b/#
Tour:
Build process:
Poor man's fiberglass:
From there the sidewalls and roof are all cut from 1″-thick block foam, which is a material many RVers may already be familiar with. Many smooth-sided RVs are a product of a welded “cage” with block foam between the ribs.
But the foamie is only block foam, no ribs. Well, not many. More on that later.
The sidewalls and roof are mounted in place and then a layer of canvas is literally glued on top of the foam with “tight bond” glue. At this point you use a warm iron to seal and help dry the layer.
Once the glue dries, the canvas layer becomes rigid and is then painted with waterproof latex paint. "
https://www.rvtravel.com/rv-review-vespa-foamie-trailer-1032b/#
Tour:
▶ Watch on YouTube
Build process:
▶ Watch on YouTube
Poor man's fiberglass:
▶ Watch on YouTube