Tile Over Osb Floor

I have done in the past but wonder if this will hold up in longterm.

Tile over osb floor. The most current ansi standards for tile installation a108 1999 specifically exclude osb. Always follow the manufacturer s installation. Most flooring vinyl flooring manufacturers do not allow direct glue down directly to the subfloor. Plywood and osb expand and contract with humidity and temperature much more than ceramic tile.

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. Preparation for installing floor tile depends on the type of subfloor in the room you are tiling. 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.

Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. 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 installed over wood floor systems must have a minimum of 1 1 4 inches of solid material beneath it. For more information download our pdf about types of subfloors.

This means you can have a 3 4 inch wood subfloor covered by 1 2 inch plywood cement board or approved gypsum fiber underlayment. However there is significant debate in the tile industry regarding the conditions necessary for a long lasting successful installation. This is not to say that tile cannot be installed reliably over an osb subfloor. I have ripped up many a floor with 1 2 plywood as the tile substrate over 5 8 sheathing.

Board is secured and has minimal if no deflection. Cab anyone advise if it is acceptable to tile directly onto osb board for wall tiles. Avoid tile and grout cracks in the finished floor with proper preparation and lots and lots of screws. When installing over existing oriented strand board osb an underlayment must be added between the osb and the tiles.

A subfloor is the bottom most structural level of your floor. 1 2 plywood over 5 8 sheathing and then ditra nobel ts or 1 4 cement board makes for a tank of a floor. Peel and stick tiles can be installed over almost any type of subfloor though it is important to properly prepare the floor first to avoid problems with your tile flooring. It supports your decorative floor finish whether it s carpet hardwood vinyl laminate or tile.