Tile and thinset are fine over drywall---the cement board is used only in the wet areas like the shower walls----
Noting gained by using backer board in the kitchen,
Unless you have a steam shower--well painted drywall above the tile in the shower is just fine.
Noting gained by using backer board in the kitchen,
Unless you have a steam shower--well painted drywall above the tile in the shower is just fine.
