Got to thinking, and I did a quick search, but didn't see anything "definitive".
Question is - would a teardrop "coroplast foamie" work out?
Thinking of a wood/plywood frame, and coroplast not the OUTSIDE. I'm not too sure of UV properties of coroplast, so it may have to go inside. Of course, foam insulation. Not too sure if coroplast inside AND out would work.
General design would be a 5x8' with a "bow" front, relatively straight/level top, going back to an angled hatch (don't want a curved rear hatch).
So, a few general questions:
Would coroplast work on the outside? I don't want white, as I don't want the thing to glow from the inside when a light is on. So at least some darker color. White would work on inside.
If coroplast doesn't work on outside, I guess I could go with a canvas exterior with some kind of marine varnish mixture to waterproof. (Would a canvas paint drop cloth work? These things seem to be cheaper than other forms of canvas, but I think they are in the 9-12oz range of weight)
Thickness of coroplast? I can get coroplast locally up to 12mm. Would that be rigid enough? 8mm?
If using coroplast inside and out, how best to seal and protect seams? Angled aluminum pop riveted? And smeared with silicone inside, etc?
Other thoughts?