Tile Subfloor Requirements

To comply with the warranties each manufacturer has a different set of specifications.

Tile subfloor requirements.

Natalia baran istock gettyimages how to fix a bad subfloor. Most commonly the maximum moisture condition is 3 0 pounds per 1 000 sq. 0 38m the maximum allowable variation is no more than in. Most floor tile is adhered to the subfloor or underlayment with cement based thinset mortar.

1 6 mm in 0 3 m from the required plane when measured from the high points in the surface. The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing. The difficulty is that tile can be installed over a number of substrates and each requires specific preparations to ensure a long lasting tile floor. The substrate for tiles shorter than 15 inches must be so flat that it varies no more than 1 16 inch per foot according to the ceramic tile education foundation.

To test your subfloor for moisture you should always take a moisture reading. The subfloor must be able to hold the weight of the tile and preparation materials required to complete the installation. Regardless of the material it must be at least 1 inch thick. 2 prepare a wood subfloor for tile.

Today for tiles with all edges shorter than 15 in. 6 mm in 3m and no more than 1 16 in.