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.
Tile subfloor requirements.
To determine the requirements for a tile subfloor i partnered with jim and rich from diamond tile located here in maryland.
Regardless of the material it must be at least 1 inch thick.
The subfloor must be structurally sound as well as thick and stable enough to hold the weight of the tile without moving or flexing.
6 mm in 3m and no more than 1 16 in.
Underlayment is the material placed on top of the subfloor that assists in the installation of the tile or other type of flooring.
0 38m the maximum allowable variation is no more than in.
The subfloor must be able to hold the weight of the tile and preparation materials required to complete the installation.
Per 24 hours when tested with the rubber manufacturers association test.
Today for tiles with all edges shorter than 15 in.
To test your subfloor for moisture you should always take a moisture reading.
2 prepare a wood subfloor for tile.
To comply with the warranties each manufacturer has a different set of specifications.
1 6 mm in 0 3 m from the required plane when measured from the high points in the surface.
Most commonly the maximum moisture condition is 3 0 pounds per 1 000 sq.