Ceramic Tile Subfloor Material

It will break or dislodge if the surface bends under the load.

Ceramic tile subfloor material.

It sounds like your joists are well within the acceptable limits of l 300 so your main concern is the deflection of the subfloor between joists. In fact due to the problems that edge swelling creates underneath a finished floor a couple of national ceramic tile associations have discouraged the use of osb as a subfloor or underlayment. Cement backer board can provide a solid flat surface to install tiles on if you have a wood subfloor. Materials such as vinyl and carpeting are flexible enough to tolerate engineered floor truss systems with larger joist spacings such as 24 inches on center.

Laying tile on plywood. Tile floors are heavy and tile is a hard material. This is why it s vital to evaluate the subfloor before you decide to install new tile. Some form of subfloor is found beneath every type of floor whether it is hardwood carpet cermic tile natural stone vinyl or laminate and choosing the right subfloor material and installing it correctly is the key to a great floor that performs well and lasts for decades.

Underlayment is the material placed on top of the subfloor that assists in the installation of the tile or other type of flooring. For this reason ceramic and porcelain tile floors can be considered somewhat delicate despite the inherent strength of the material. On wood frame floors the subflooring provides a continuous structural surface over the floor joists. Check for dips in the floor by sliding a 4 foot to 6 foot straight edge in different directions all around the room.

With ceramic tile you also need to limit the deflection between joists which is a function of the subfloor thickness and how it is installed. For ceramic tile the tile council recommends using joists that are 16 inches on center a 3 4 inch thick plywood subfloor and a 1 2 inch thick cement backer board or concrete slab. Perhaps more than any other flooring material ceramic and porcelain tile need a stable subfloor because any flexing or other movements will crack the tile grout and maybe even the tiles. 2 prepare a wood subfloor for tile a successful tile installation project requires a level surface.

The subfloor is the foundation beneath finish flooring materials. Without one even slight movement of a subfloor can cause grout lines to crumble and tiles to crack good underlayment also provides a waterproof barrier between the tile and the subfloor.