The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. Apply it to the wall with the bottom edge about 1/4 in. above the lip of the tub. Then apply a generous amount of thin-set to the bottom tile and position it 1/8 in. above the tub. Fill the gap between the tile and the tub with caulk.
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
- Caulk gun
- Cordless drill
- Notched trowel
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.
- Thinset mortar
- Tile backer