Tile Over Osb Wall

1 2 cement board over 5 8 plywood is often frowned upon as the cement board offers up no rigidity to the floor assembly.

Tile over osb wall.

Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. For ceramic tile floors the cement board usually rests on a plywood subfloor minimum 5 8 inch thick exterior grade plywood or osb if new ceramic tile is being laid on an existing floor the cement board can usually be laid right over the existing floor finish provided it is in good shape and the extra floor thickness is not a problem. Hello ive got to tile a wall hung wc box covered in osb3 any advice for preparing board before tiling ie primer. Osb panels provide an excellent base for many types of finished flooring including ceramic tiles if careful attention to the construction and preparation of the subfloor is paid in order to avoid costly callbacks.

Regular seasonal humidity shifts are significant enough to make the average 10 x 10 wood subfloor floor expand or contract as much as 1 2. Ceramic tile doesn t expand contract nearly as much. Colorful tiles may go out of style and some tiles are inappropriate for the space. Cab anyone advise if it is acceptable to tile directly onto osb board for wall tiles.

Tiled walls can last many years but that s not always a good thing. Plywood and osb expand and contract with humidity and temperature much more than ceramic tile. I have ripped up many a floor with 1 2 plywood as the tile substrate over 5 8 sheathing. 1 2 plywood over 5 8 sheathing and then ditra nobel ts or 1 4 cement board makes for a tank of a floor.

The preferred method for tile installations is to use a sheet of underlayment. As the plywood or osb expands the ceramic won t. Board is secured and has minimal if no deflection. Therefore according to the 2012 tcna handbook they are not recommended as a substrate material for direct bonding of ceramic or natural stone tile with cement mortars.

For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings. I have done in the past but wonder if this will hold up in longterm. Wood based panels like oriented strand board osb expand and contract with changes in moisture content. Always follow the manufacturer s installation.

Im concerned that the tiles wont stick to the wax like board or should i clad it in tiling board and screw the backer board to the osb my problem with that is the connections into the wc may now be too short to connect properly as the ceramic tiles are 8 9 mm thick and i.