Get matched with top backsplash installation pros in Bruce Crossing, MI

Tile shouldn’t be set tight against the tub. Bathtubs can expand when filled, and they can shift slightly with the weight of occupants. For this reason, it’s important to leave a slight gap between the bathtub and the first row of tile. Aim for a narrow gap of approximately 1/16 of an inch, filled with caulk, to allow for this expansion and movement while still allowing for tile shower waterproofing.

Yes, you can tile over existing shower tiles, but it's better to remove the old tiles first for the best results. Tiling over existing tiles requires a clean, level surface and proper adhesion. If the old tiles are in good condition, you can roughen the surface to improve adhesion. However, removing the old tiles ensures a smoother, longer-lasting finish and prevents potential issues down the line.

While you shouldn’t use thinset mortar on its own as a floor leveler, it can work alongside other products to help level floors. For instance, you could start with a self-leveling compound, let that dry, then apply backer board with thinset mortar to help fully even out the floors ahead of laying tile.

The best trowel for penny tile is a 3/16-inch-by-5/32-inch V-notch trowel. Because of the small size of the penny tile, you want a trowel with small notches that can lay a thin layer of mortar on the surface you’re tiling. If the notches are too wide, you risk applying too thick of a layer of mortar, and it can squeeze out between the penny tiles.