For most shower walls the drywall installed in the home during the building phase is cut off at the.
Tiling a shower wall over drywall.
While it probably does a decent job the drywall above the surround may suffer from water that sprays up or from moisture that accumulates on the drywall.
Compare this to the common practice of tiling over drywall and you get the idea that you have a totally different shower by using a product that is meant to function in the shower.
You can rough up the painted surface which allows the mastic or thin set mortar especially those designed for painted drywall to adhere.
Tile adds a layer of moisture protection to drywall.
Can i put backer board over drywall for shower tiling.
Sand the wall with 80 to 120 grit sandpaper on an.