Vapor Barrier Worth the Trouble?
Getting ready to bolt a new marine plywood floor, painted with marine enamel, onto a POR 15'ed frame.
Plan to fill the gaps in the frame with Styro board insulation.
Seems in normal situations, I should put down a plastic sheet under the plywood floor, before I bolt it down, for a vapor barrier.
Don't recall seeing any discussion in the forum around putting down a vapor barrier, and wondering if there are condensation issues, or flex/abrasion issues in a coach, that make it impractical.