Never fill this gap with grout because tile grout is not flexible.
Tiling a wall from top to bottom.
Don t start it at the floor.
A batten board helps you start your bottom most course or row of tiles.
Sweep diagonally across the tile forcing the grout into the joints.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
Begin by scooping up a load of grout onto the grout float using one end of the float.
Scoop out a golf ball sized amount of adhesive onto a notched trowel and spread enough adhesive in a thin layer over the wall to hang 2 3 tiles at a time.
There is chances of slipping of tiles from top to lower.
Do not cover the entire float with grout.
Step 1 use a gauge rod to work out the position of the lowest horizontal row then mark the top row s position on the wall.
A batten board is nothing more than a 1 x4 or 1 x2 board screwed directly into the wall horizontally.
Im not a tiler.
Instead bring it up to about 3 4 of the height of your tiles.
If you re only part tiling a wall a top horizontal row full of whole tiles makes for a much cleaner finish so we think it s really worth investing some time to get it right.
If you are using ppc cement mortar then do not do it because ppc cement mortar takes much more time to set and chances of slipping of tiles becomes more.
If you tile top to bottom your tiles may slip why not work out where the tiles will finish put a batten then tile up if you are tiling it in one hit then should you be a little bit out it will be easy to slide the tiles up insert a piece of card in to hold them in the new position.
In this case draw a vertical line dead centre of the wall and work in both directions from there.
I have used this method it worked for me.
Theoretically tiles to be laid from top to bottom but practically it becomes impossible due to above reason.
If your wall isn t an exact multiple of the width of a tile plus grout line start between one quarter to one half of a tile to the left or right of this line.
When you install ceramic tile on the floor you must take care to create an expansion joint between the walls and the tiled floor.