Board floors , not plywood ...

[aggie79]

It's hard to follow Fred's fine builds, but here's my two cents worth.

I built my teardrop on the principle of the exterior surfaces being as watertight as possible. My floor is epoxy and rubber auto undercoating covered plywood. My sides and roof are aluminum over epoxy coated plywood. All seams, trim, and accessories are bedded in sealant.

These assemblies shouldn't leak, but if they do, the interior surfaces are gas permeable, meaning any moisture that came in could evaporate to the inside. For my floor, I left the top sheet of the sandwich construction unfinished.

So far, so good.

[Stargazer]

KennethW ... What did you use for the subfloor between the foam floor and the trailer steel?

Gene

[KennethW]

KennethW ... What did you use for the subfloor between the foam floor and the trailer steel?
Gene

Painted canvas on the bottom, 2" foam( the stuff for under concrete) with glass board (FRP) on the top. The FRP spreads the load of your knees and on the bottom the HF trailer beams have plenty of square inches of support.

[Stargazer]

Thanks for the quick response KennethW I really appreciate it. I am in the read, research and concept stage right now but after reading all of the plywood horror stories I like the idea of coated foam and no wood exposed to the environment.

Thanks again ... Gene

[GPW]

We’re just thinking more and more is the need for a proper drip edge on the bottom edges to eliminate a good bit of potential damage to the floor ... Directing any water , condensation , away from the floor entirely seems better than treating for an easily avoidable problem ...