Plywood For Bathroom Floor Tiling

We have our large kitchen and hallway that was originally covered by 12 x 12 ceramic tiles on top of 3 8th inch plywood.

Plywood for bathroom floor tiling.

Residential floors are typically sized for a live load of 40 psf and a dead load or 10 psf. The floor tiles became loose cracked and ugly looking over about 2 decades of use. Under british standards bs 5385 part 1 plywood has now been excluded as a suitable substrate material for the direct fixing of wall tiles therefore when tiling on to walls a tile backer board is required however tiling onto plywood floors is still acceptable under british standards. Tile floors are likely to weigh 15 to 20.

Old vinyl floors in bathrooms are a pain to tear up and if the vinyl was installed before 1980 it may even contain asbestos. This is fine for wood carpeting and resilient flooring but not for ceramic tile. Using the right type plywood ensures a long lasting floor. A subfloor is the bottom most structural level of your floor.

Backerboard does not shrink or expand when it comes into contact with water mortar and grout both contain water. The floor must also handle the weight of the tub shower tiles and other fixtures. In this video we show you everything you need to know how to level a floor into a perfect flat and level floor in your bathroom using self leveling floor com. Deflection of l 360 for ceramic tile and l 720 for natural stone tiles.

Before finish flooring is installed on top of a plywood subfloor you must waterproof the subfloor especially in a bathroom. Thin set was used instead of glue or adhesive. That usually means the underlayment and the subfloor also get wet. Now the entire flooring of ceramic tiles needs to be torn out and replaced.

Tile floors are especially heavy with layers of cement board mortar tile or stone and grout. Cement backerboard is made for tiling. The tile council of america tca recommends a max. If the floor is stiff enough to tile directly on the vinyl sand or strip the floor and screw the vinyl down before tiling.

The bathroom floor gets wet. Often the subfloor consists of plywood that is nailed or screwed to the construction floor. Plywood substrate alternatives. The safest most prudent course is to install tile on top of a cement backerboard such as durock wonderboard or hardiebacker.

It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling.