How to Add a Backsplash to a Painted Wall

Preparation

• 1

  Take off all of the switch plates and outlet covers in the area where you're adding the backsplash.

• 2

  Sand the wall with 80-grit sandpaper. This roughs up the surface of the wall to allow maximum adhesion for the tile.

• 3

  Wipe down the walls with a damp rag to remove any of the dust caused by sanding.

• 4

  Mark the center of the room's focal point with a pencil. Use a level to make a straight line. In many cases, the focal point will be the range or another appliance. This will be the area for starting your tile installation.

Application

• 5

  Apply the recommended adhesive for your tile, typically thin set or mastic, with a notched trowel at a 45-degree angle. Only do a small area at first to prevent the adhesive from drying prematurely.

• 6

  Set the first tile parallel with the counter in the starting area noted above. Wiggle the tile slightly then press it firmly into the adhesive. Use a spacer in between the counter's edge and the tile; you'll need enough room for a bead of caulk.

• 7

  Set the next tile against the first one, putting a plastic spacer in between them. The spacers allow room for the grout.

• 8

  Continue setting the tiles, working in a small area. Apply more adhesive as necessary.

• 9

  Measure and mark any tiles that you need to cut as you go. Score the tiles with a score-and-snap tile cutter and carefully snap each tile along the scored mark. Only score the part of the tile that will not be seen, such as around outlet covers, switch plates, cabinets and appliances.

Finishing Up

• 10

  Allow the adhesive to set for the amount of time recommended by the manufacturer. Remove the spacers after the adhesive has set.

• 11

  Mix up the grout according to the instructions. Wear work gloves and goggles while doing this, along with a face mask to help prevent the dust from getting into your nose, mouth and lungs.

• 12

  Apply the grout at a 45-degree angle with a rubber float. Make sure you pack the grout in between the tiles.

• 13

  Shape the grout with a rounded-edge stick and wipe the tiled surface to smooth out the joints with a damp sponge. Replace all of the outlet covers and switch plates; keep in mind you will need slightly longer screws for these now that you have the added thickness of the tile.

• 14

  Apply caulk around the perimeter between the counter top and tile.