Originally Posted by joecaption
Just attaching the outside rim joist to the studs would keep it in place. There also would be no holes going in the subfloor.
Just using a single layer of Advantec subfloor would be more then strong enough to support a tub and be far more stable and water proof then plywood.
thanks i will do the rim joist the. good idea. so if rim joist is attached to studs, all the other joist just 'sit' on subfloor? no chance of shifting or movement or flex?
im going to check out advantec. never heard of it. am waterproofing the whole stage and walls with nobleseal but if its deflection is better than ply i will try it