I cover some of the specifics of how to layout and set up a tub to install tile around it.
Tiling around a tub with a lip.
Fill the gap between the tile and the tub with caulk.
You should not have a problem with what i have suggested.
Have a few spots 1 inch to 4 inch diameter bulging out and they are around the same level of the tub lip.
So we suspect a slow leakage that has.
Check if you need to adjust this mark to avoid laying slivers of tile at the top and bottom.
The fourth side is of course the long side that you pass over getting into and out of the tub.
Divide the dimension in half and make a mark there.
Secure the bottom row of tiles to the tub away from the lip with silicone caulk.
Porcelain coated steel tubs have a much higher lip than cast iron tubs.
You normally start with a full to a half a tile.
In this video i show you the entire process of installing tile around a bathtub.
Affiliate links bosch laser level.
Apply it to the wall with the bottom edge about 1 4 in.
Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in.
You will install the tiles against the cement board leaving the lip unexposed with a gap between it and the board.
Next you will cover all the seams including the lip of the tub with fiberglass tape and thinset.
To tile around a tub or shower start by measuring the height of the back wall from the lip of the tub to the top of the area to be tiled.
The rest of the drywall did feel slightly wet to touch.
Dumb but have seen it.
Standard bathtubs have a lip on three sides of the tub to capture water.
Above the lip of the tub.
Tiling around a tub with a lip means that you need to place the cement board above it.
The only time you might have a problem is if the first row of tile on the tub is cut around that area.
This video will show you how to set tile around a tub.
3 methods for how to waterproof and seal the gap between the shower or tub flange and tile backerboard.