I have a bus and what I did is first give er the mighty Tremclad coat on the floor. A friend of mine with a 55 Chev screwed up royally now her floor is sagging twisting etc from condensation. My plan is to rubberize the floor with blue seal, strap the floor with 1.2 inch strapping, 1/2 inch insulating styro foam, vapor barrier then subfloor it. Is that going to keep the condensation from happening in that airtight space ? I like to do it right the first time or at least to make it last ten years. Toasty on the feet, yet 30 below outside. The condensation and mould monster must be terminated. Thanx ! Cheerz !!
