What kind of plywood goes under tile?

What kind of plywood goes under tile?

What kind of plywood goes under tile?

Oriented strand board (OSB) and exterior-grade plywood will work if first covered with a latex-modified mortar and a tiling backer board. Install a cement-based backer board following the manufacturer's instructions. This provides a solid surface under the tile that prevents flexing that could lead to cracking.

Can tile be laid directly on concrete?

A: It's perfectly acceptable to put tile directly on concrete — with a couple of caveats. First, it is important to determine if there is moisture coming up from the slab. ... Those products should help prevent any cracks in the slab from damaging the newly installed tile.

Why do you need to put underlayment on tile floor?

There are various types of tile underlayment, but all serve to smooth out uneven spots in a subfloor and create an unbending layer that prevents the floor from flexing underfoot. (Without one, even slight movement of a subfloor can cause grout lines to crumble and tiles to crack.)

What's the difference between an underlayment and a base?

Tile may be strong, but it needs a solid, supportive base. An underlayment is the solid stabilizing layer directly below the tile and the tile adhesive (usually a thinset mortar). Using the wrong one can spell disaster for your tile installation. These poor tiles were installed improperly; they never stood a chance.

Which is the best underlayment for concrete floor?

A mat underlayment is best for concrete as it prevents cracks and moisture from getting to the tile. Spread thinset with a 1/4” notch trowel, roll out the mat, embedding the fabric underside into the thinset. Add a strip of waterproof membrane (such as Schluter Kerdi Band) to your seams to waterproof the floor.

What kind of underlayment can I use on my shower floor?

A mortar bed is a thin layer of cement mortar poured on the subfloor and embedded with mesh reinforcement. Mortar beds aren’t as common as they once were, although they’re still widely used in shower floor installations. Still, they’re a good choice for underlayment over subfloors with small flaws or which aren’t perfectly level.

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