Thanks Beans! Your outhouse is fantastic...I have fallen hard for ship lap and you can't get it here! We have a metal building/barn that wasn't built correctly and the condensation just drips from the ceiling-we just moved into this place and everything we put in there was ruined. That's why I asked about condensation! We bought a big portable barn and are insulating between the studs and I had wanted to finish the walls with ship lap - no such luck! It's OSB..yuck! The ceiling has vapor barrier but I wonder if we should put insulation up there as well? Your thoughts? Did you insulate the ceiling of your outhouse?