Prem wrote:Thanks Hader and EZ.
On the insulation issue. I had found some synthetic wool door insulation tape that I used on all the uprights (U-shaped, aluminum studs) prior to insulating and paneling with birch ply. That isolated (somewhat) the condensation problem where there was no foam insulation. Only the rivets now get condensation. They're aluminum into aluminum so there's no rust. In lieu of hard-to-find, synthetic wool weather stripping, I'd use "camper tape." (That's the stuff that you put on the bed rails of a pickup truck prior to mounting a canopy.) May two layers.
The problem is with the U chanel but I am thinking the foam sheets will slide under one side in each space but not the other?
I wonder if I can't just apply spray foam inside the channel on one side where the foam sheet won't go and then snap the panels into the other sides channel where it should slide and get what I need that way?
I also used that Rubber Spray paint in my steel CT to isolate the steel studs somewhat from the backside ad I could sure do the same behind foam panels to isolate the Aluminum skin from the panels some.
I wonder if I might be making too big a deal out of this too but this is the sort of problem that only really pops up at extreme temperature swings too and is pretty annoying when it does.
Also you are right,thioe resin soaked OSB panels they use are crazy heavy but also crazy tough and I am not sure yet if I want to give that up for the weight,I do plan on using the trailer to haul stuff when needed.