Recent content by johnsonte1

  1. johnsonte1

    Looking for waterproof alternatives to OSB for subfloors

    I like this solution, tbh the condition of the floor isn't horrible. I've gutted the thing down to the floors once already, and it does take a while. I'm sure a team of professionals could make quick work of it, but I'm just one dude.
  2. johnsonte1

    Looking for waterproof alternatives to OSB for subfloors

    Sounds like marine plywood is the way to go, thank you folks!
  3. johnsonte1

    Looking for waterproof alternatives to OSB for subfloors

    Cool! Looks like Starboard is a sheet of hdpe, it would cost over $1000 for a 4x8 sheet that is 3/4 in thick. Very pricey, it would be a bit heavier than OSB, but it would definitely solve the problem. I wonder if it's rigid enough to reduce the thickness to bring the price and weight down.
  4. johnsonte1

    Looking for waterproof alternatives to OSB for subfloors

    Pressure treated plywood would be a good upgrade, thank you for the suggestion. Funny I was thinking in terms of boats too, but along the lines of fiberglass and foam. Just brainstorming
  5. johnsonte1

    Looking for waterproof alternatives to OSB for subfloors

    OSB is used as a subfloor in my RV, it's supported by a steel frame but the bottom of the OSB is exposed. The floor is sagging and I believe it's from repeated towing in wet conditions. I think the splash from the wheels is kicking water up at the underside. I'm considering my options for...