Place them between the tiles are you lay each one and grout straight over the top.
Gap between bathroom floor and wall.
Apply one bead directly along the edge of the tub and the second bead along the edge of the wall.
Caulking the laminate flooring baseboards gaps in trim joints and the gap between baseboard and wall improve water impermeability of the house.
Typically this will be cracks in your foundation.
If you re using small format tiles such as those 8 by 8 inches and smaller the tiles may come with built in lugs that make spacers unnecessary if you want a standard look tile installers recommend grout lines of 1 16 inch for walls and 1 8 inch for floors.
And after installing the floor tile you can install that final or first row of wall tile.
The gap goes 3 5cm to 4cm back to the breeze block.
These can be left in place and will not be seen when you have completed your tiling.
Caulking is a fairly cost friendly method to seal small thin gaps between the wall and the basement of the floor.
The large format 18 inch tiles should have inch space in.
Fill gaps between 1 4 and 1 2 inch in width with two beads of caulk set side by side.
For smaller tiles is advisable to use small spacers.
So to accommodate the flooring tile many like to leave a small gap between the last row of wall tile and floor.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
Or fill the gap with grout.
Instead fill it with an elastic material capable of sustaining the movement of the floor and the movement of the wall.
Caulking is the best choice for this application.
There is a gap of say 5mm to 8mm give or take high between where the floor tiles meet the wall tiles in the bathroom.
Some like to use a ledger or other space saver to indicate where your missing row should be.
Never fill this gap with grout because tile grout is not flexible.
However it will eventually fail in one of two ways.
As the tiles increase in size a larger gap becomes acceptable.
I m guessing its the thickness of the dot and dab then plaster board then tile adhesive then tile.
The water being blocked by the sealant will find another gap in your foundation to enter the home.