Marble Tile Subfloor Requirements

2 get deflection specs from stone tile dealer.

Marble tile subfloor requirements.

Subflooring requirements for tile floors. This guide will show you how to prepare your subfloor for a tile installation project to ensure that it s fit to support ceramic or porcelain tile. Why dont you run the marble the old fashion way mudset level. 23 floor systems utilize plywood.

The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing. Marble tiles are heavy and if the existing subfloor isn t structurally sufficient it will have to be reinforced before the tiles are installed. Specific subfloor underlayment requirements maximum tile size other details as required amongst tcna listed assemblies. Upgrading to 23 32 inch plywood will stiffen the subfloor by almost 80 and provide a more solid feeling floor.

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. 3 with one exception all tile backer boards are non structural. The subflooring should be level to 1 8 inch in 10 feet. 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.

Adding a layer of conventional backer board will add to the deflection problems not remove them. Cement based thinset mortar bonds the marble to the subfloor permanently and it prevents the marble from separating. Minimum subfloor for marble tile. Once the polished marble tile is set firmly in thinset there s reason to.

Subfloor under marble tile 1 the tcna handbook is a guide for installing ceramic tile not stone tiles. 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.