Re: Bathroom Tile Walls
You should never, ever tile directly on drywall, because even grout is not waterproof; it lets moisture pass through.
If you still want to use drywall, the only solution is a waterproof membrane. The product we have used on a lot of renovations called Kerdi, a product of Schluter co.
It's applied as a sheet with thinset right over the drywall. There are tutorials and videos on the details. It works perfectly and solves your problem. If you wanted to use cement board, you would still need to use a waterproofer (redguard, etc.) to keep moisture from getting to the wall framing, because although cement boards are not harmed by water, they are permeable.
Last edited by Sombreuil_mongrel; 08-25-2011 at 08:37 PM.
Remove not the ancient landmark, which your fathers have set.