Originally Posted by thekctermite
Not sure of the link, but the Tile Council of North America has some pretty good info on their site as I recall.
Basically, backerboard first, direct to the studs, installed with screws or long roofing nails. Then thinset the seams and tape with mesh tape. Then waterproof the backerboard with Redguard or Kerdi...Both work fine and this is absolutely the most critical step. Then tile, using thinset...Preferably from a dry mix opposed to the pre-mixed stuff.
I am extending the tile from around the tub area, to also down the length of one wall - it's ok to have just regular drywall in the area not around the tub, correct?
Typicaly 5x10 bathroom, with the tub across one end - vanity and toilet on the wall where the tile will also be applied.