Quick Answer: Can I Tile Over Plywood On A Bathroom Floor?

How thick should plywood subfloor be for tile?

The subfloor under the tile should be at least 1 1/8″ thick, with a minimum of 5/8″ thick exterior grade plywood topped by 1/2″ cement backer board..

Do I need to prime plywood before tiling?

The plywood surface will then be the surface to be tiled. … So your nice new clean ply floor isn’t so clean anymore and if it’s not prepared properly prior to tiling, the adhesive will just go onto the dirt on the floor and might not stick! This is why it is better to prime it than not to.

Can you install tile on plywood floor?

While tile can be laid on plywood, do not install tile directly onto the plywood subfloor itself.

What plywood should I use for bathroom floor?

British Standards recommend a minimum of 15mm thick plywood to be used for over-boarding purposes (any less will not provide the rigidity required). This involves screwing a sheet of plywood over the top of the existing floorboards / chipboard or plywood to provide extra rigidity and a flat surface onto which to tile.

What do you put on subfloor before tiling?

Elements of a solid subfloor Wooden subfloors in older houses need to be strengthened and stabilized before backer board and tile are installed. The best method is to refasten the subfloor, then add a layer of plywood.

What is the best underlayment for a bathroom floor?

Backer Board. This is the industry standard most preferred by construction pros when installing ceramic or porcelain tile. … Trowel-able and Pourable Underlayment. A number of trowel-able and pourable tile underlayment options are available, each with its own purpose and best use. … Membranes.

Should I use big or small tiles in a small bathroom?

The bigger the tiles, the smaller the room will look…or so they say. Generally, interior designers will say that you shouldn’t use large tiles (such as 60×60 cm or 80×80 cm) in a small bathroom as it will make the room look smaller.

What do you put on plywood before tiling?

While I prefer using 1/2” cement backer board over a plywood subfloor, you may be able to get by with 1/4” backer board instead. Even if you use a waterproof underlayment membrane, the floor will still be either 1/4″ or 1/2” higher than the subfloor, plus the thickness of the tile and adhesive.

What is the best primer for plywood?

KILZ COMPLETE, KILZ ORIGINAL, KILZ ODORLESS, KILZ PREMIUM or KILZ 2 LATEX primers Any of these primers can be used as to prime and seal new wood and millwork without raising the wood grain. On exterior jobs, use KILZ COMPLETE, KILZ PREMIUM or KILZ 2 LATEX primers.

Do I need to seal floor before tiling?

For that reason, it is best to use an elastomeric, crack-prevention membrane to both seal the floor and protect your tile installation from failure. These membranes prevent water from seeping up through the concrete and into the mortar as well allowing the thinset to cure and preventing future mold or mildew growth.

What kind of plywood do you use for subfloor under tile?

Exterior-Grade Plywood Exterior plywood is an acceptable underlayment for tile and is preferred to interior-grade plywoods because the bonding adhesives used are waterproof. If water seeps through the tile installation to the underlayment, it will not cause the wood to swell, as happens with interior-grade plywood.

How do you waterproof a bathroom floor before tiling?

To make the floor waterproof, seal the seams and floor-to-wall junctions with a waterproof tile membrane. Spread mortar over the seams, comb it, and press the band over it. You want a 2-inch overlap at all seams.