We are remodeling our 44 sq ft bathroom that had water damage on floor. We tore up everything down to the floor planks that run diagonally over 16 on center floor joists. We have opted to use shluter-ditra instead of cement board for the porcelain 24 by 12 tile. My uncertainty is what thickness of plywood subfloor to use. Any advice is greatly appreciated.

We re re-doing a very out-dated mobile home. The previous owners had pets, therefore.. the carpets HAVE to go!! Underneath the carpet is OSB flooring. We thought that there would be plywood underneath, so we were going to just paint it. While I know you can also do that with OSB flooring.. that's not the look were going for. We thought about doing the stick on vinyl becuse it looks good, and it's cheap. We are on a VERY tight budget!! Can someone tell me if you can directly stick the vinyl onto the OSB? Or do we need to lay something under it? Or does anyone have any other CHEAP ideas of what we could do??