Marble Tile Subfloor Requirements

Minimum subfloor for marble tile.

Marble tile subfloor requirements. The subflooring should be level to 1 8 inch in 10 feet. Cement based thinset mortar bonds the marble to the subfloor permanently and it prevents the marble from separating. Tiles are glued down with a thin set adhesive a mortar based product that now is the standard for ceramic and stone tile products. To meet tca stiffness requirements floor framing should be no more than 16 inches on center with minimum 19 32 inch plywood subflooring.

One osb eight require two layer all plywood i e subfloor underlayment six allow supporting members to be spaced at 24 oc. Regardless of the material it must be at least 1. Specific subfloor underlayment requirements maximum tile size other details as required amongst tcna listed assemblies. Subflooring requirements for tile floors.

Subfloor under marble tile 1 the tcna handbook is a guide for installing ceramic tile not stone tiles. Marble tiles are heavy and if the existing subfloor isn t structurally sufficient it will have to be reinforced before the tiles are installed. Preparing a subfloor is an essential step for installing floor tile it provides a level surface that will allow the tiles to properly stay in place. The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing.

23 floor systems utilize plywood. Subfloor preparation is similar cement board underlayment installed over a sturdy plywood subfloor is the best base for marble tiles just as it is with ceramic tile. Once the polished marble tile is set firmly in thinset there s reason to. Upgrading to 23 32 inch plywood will stiffen the subfloor by almost 80 and provide a more solid feeling floor.

Adding a layer of conventional backer board will add to the deflection problems not remove them. This way you wont have to install any wonderboard and such you will only need the metal mesh with the black paper backing and run 1 2 height from the highest spot of the floor you can also charge much more for this type of instalation. Why dont you run the marble the old fashion way mudset level.