Asking for suggestions on interior finish on walls

[Guest]

The space between the studs is going to be insulated with spray foam, Exterior will be Vinyl shake.

[Michael]

High humidity. Would recommend against Sheetrock. Clapboard would be easiest. Or else shingles (pine or cedar as you prefer) on strapping.

[Mike]

You can use 4' x 8' x 1/2" sheets of duarock or hardibacker. It's used to build tile showers and is waterproof.

You can then paint the interior and get a industrial concrete look.

Explore these too: Any ideas for colors/paint for the tray tables and wall? Any tips on doors?

[Debbie]

Where did you get the plans for this? It looks like something I’ve been looking for.

[Michael]

Something moisture resistant like shiplap. I would want it to breathe too but you have plywood exterior so not sure what your plans are.

[Jeremy]

We spray foamed ours then painted it white.

[Spencer]

I put cedar fence slats up on the outside and plan to do the inside as well.

[Mark]

Vapor barrier as the innermost layer will be really vital. I think I might have sprung for pressure treated studs and sheathing.

Maybe cement board on the interior. Like you use for showers.