How do I Install Solid Marble Tile?
- 1). Check the subfloor in the room. The subfloor should be flat and without any flexing or movement. If the subfloor has any of these issues you will need to fix them before the solid marble tile can be installed. Typically these issues are fixed by simply installing a cement backer board on the floor.
- 2). Measure the floor for the cement backer board. You may have to install it in two or more pieces. Cut the backer board by first scoring it with a utility knife and then snapping it from the other side. Screw the backer board to the wood subfloor with exterior grade screws. Cover the seams between the backer board pieces with fiberglass mesh tape,then covering that seam with thin set mortar. Allow the mortar to dry overnight before tiling.
- 3). Decide on a layout for the tiles. The easiest way to do this is to lay the tiles on the top of the backer board and place spacers between the tiles. Arrange the tiles until you decide on a layout that looks good. Many homeowners choose to lay out the tile by simply arranging it to line up with the wall. Mark the floor with a pencil once the layout is decided. Remove the tiles and spacers.
- 4). Spread thin set mortar on the backer board with a notched trowel. Gently press the marble tiles into the mortar. Place 1/8 inch tile spacers between each of the tiles. Cut tiles where needed with a diamond blade tile saw. Let the mortar dry for 24 hours.
- 5). Remove the spacers from between the tiles. Because the space between the tiles is small (1/8 inch or less) you can use unsanded grout to grout the tiles. Unsanded grout is also a great choice for marble floors because it will not scratch the floor as it is installed. Spread the grout with a rubber grout float. Remove the excess grout with a dampened grout sponge. Let the grout dry overnight or for 24 hours.