After you finish the wall install the bottom row.
Tile over tub flange.
Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in.
Check if you need to adjust this mark to avoid laying slivers of tile at the top and bottom.
1 8 from the front edge of the densshield by the way the tub manufacturer oceania in quebec is adamant about no mechanical fasteners in or above the tile flange only silicone to the studs painters tape the tub then fill gap and onto the densshield with kerdi fix then apply kerdi tape and smooth out after drying redgard as much as possible.
By using the right kind of materials and tools it is possible for you to tile over the tub flange with ease and efficiency.
Start your first row just about less than a full tile above the tub edge by using a level straight edge tacked to the wall.
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Use your silicone along this seam.
Most three sided tubs will have a tile flange raising upwards from those three sides.
That flange needs to be covered or it will look pretty strange.
Tile on tile or as i say it.
Above the lip of the tub.
Apply it to the wall with the bottom edge about 1 4 in.
Maybe cap it off with similar material as your countertop.
And it lasts for 20 years.
Divide the dimension in half and make a mark there.
Tile are a very common way of finishing the walls in remodeled and new baths as they are impervious to water and highly stain resistant.
That means building a small wall down on that end of the tub that comes up and wraps over the tile flange with tile.
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.
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.
You may have to cut the bottom row which is normal but it will give you a custom finish all the way down to the tub edge.