Thanks for the keywords... you know, any other time, searches would have dragged that up. AI is failing.
Yes, well what I was thinking is, based on what I had seen, you could make a standard stick frame, and do the canvasing. It wouldn't be that much different then skinning with the typical sidings. After it is all dried, add insulation like you would normally. The glider trailers I seen, it would be easy enough to install XPS or EPS between the framing. I don't think condensation would be to much different from other trailers. Or am I missing something?
I've started to wonder, what is the canvas was pulled tight, painted, allowed to dry, and then cut into a sheet. The canvas on the glider trailers I seen, were very stiff. I am sure they would flex, but, as a water proof panel, might have interesting results. I'm going to have to play around with that.
I also wonder if different paints have different effects on the canvas, waterproofing and flexibility.
You mention Dacron on polyester, how do you shrink it? When I looked at videos and tutorials, everything is pretty much cut and staple, much like canvas. I seen heat applied once, but it was to melt heatglue bead to hold the fabric during a canoe build.
Tent, yeah... but much more rigid, and the idea of it being hardened... more appealing.