Continue chiseling down to the waterproofing membrane.
How to install tiles on shower floor.
Tile the alcove sill and then the sides and top.
Grout the shower walls.
Measure and dry lay tiles for shower wall.
From there sheets of tile backerboard are fastened to the wall framing and another 2 to 3 inch layer of portland cement and sand are applied over the membrane again sloped towards the drain.
Slightly slope the sill tiles toward the shower for drainage by piling on a little extra thin set on the back side.
Complete the shower floor.
Install your wall tile first so that any unevenness in your shower pan will not be as noticeable.
Allow for the thickness of the tile around the drain when floating your shower pan.
The membrane also extends several inches up the walls of the shower framing creating a waterproof pan.
Use a tile ring to avoid cutting or nipping your tile into a circle around your drain.
Remove the drain cover and place a clean towel or rag into the drain before chiseling along the grout line of the center tiles.
Use a 3 pound sledgehammer to hammer the tile until it s dislodged.
Complete the shower walls.
Set tiles on shower side walls.
Setting the cut pieces.