Standard / moisture / vapour plasterboard on single skin wall

[linus1]

what's wrong with that?

I've used non-drip oil-based gloss on plastic, and been pleased with it.

This paint did drip, it just wasn't a great finish and not completely smooth. Maybe I didn't prep correctly, although I think I did.

 

[Mr Chibs]

Just flat-off the ropey bits and repaint, but thin the paint down a little first.

 

[dontbelieveawordofit]

i wouldn’t plasterboard a single skin shed. batten and board internally with osb using 2x1 roofing batten with a 4”dpc behind every one.
but we’re all different.