So I've been reading and absorbing as fast as I can and while the idea of a Foamie is new to me I can see it's an excellent way of creating a teardrop (and many other things). But I'm not working on a teardrop.
I have a 1972 scotty that I purchased partially rebuilt. The previous owner stripped it down to frame and built a new floor and studded it out in aluminum so it's super light. He skinned it in hardboard and there it sat for 5 years waiting for me to find it
So, I'm in the process of taking the hardboard off and raising the entire frame up 12 inches so a normal sized person can stand inside. (are you wondering why I posted this in the foamie section yet??)
So, here's my question. I want to put foam on the outside of the aluminum studs like a normal trailer and then canvas(and glue) the foam like a regular foamie. But..here's where I'm getting stuck - after I do that I want to put the original aluminum skin back on the outside of the camper, but not sure how to be able to do this and attach it properly. Would I skin it in canvas and let it dry and then run a small rib (maybe 1/2 x 2) of wood screwed through the foam into the aluminum frame so I have a place to screw the original skin to? I can't really wrap my mind around this particular part and the vast internets have been no help with an idea like this.
Why do I want to do it this way? Because here's my thinking on re-skinning it the traditional way. so I skin the outside at say $35-40 a sheet for 1/2" ply (haven't been able to find it cheaper), then insulation at $20 a sheet. Seems to me if I use the 'foamie method' i'm saving myself $35-40 a sheet (and that doesn't even count the weight savings there). Also, I'm really drawn to the waterproofness Down here where I live it can be a desert or it can be a rainforest. Sometimes both in the same day. Help me out here - what are your thoughts?