After laying the tiles on the floor, should be laying the tiles on the wall. This is done in order to tile the wall, sitting down on a tile lying on the floor. Tile smear with a special solution, then smear the wall, and a light touch on the tiles to, thicken to the wall.
You first need to attach profeli whith using a spirit level
do not forget to put special plus sign between the tiles
There are corners of both internal external. We use them in the right places.
I wish you all good luck.