STEP 5: Adhering Tiles __ If you are using tile, chances are that it's in a setting where moisture is a given__kitchen, bath, entryway and so on. Make sure you use a waterproof adhesive. You can use a premixed adhesive or a mortar, but if you choose the latter, make sure it's a thin_set variety. (Thick_bed mortars require some practice and skill at smoothing to get the tiles to sit flat, and the additional mortar isn't necessary for a watertight finish.)
In an older home, you may find the floor isn't square, which makes the job more complicated. Use the most obvious wall as a baseline, so those entering the room will see tile lines parallel to that wall; your job will look more even.
by Gregg M. Brown on Jul 31, 2018 Ceramic Tile