Tile Over Osb Subfloor Floor

Plywood and osb expand and contract with humidity and temperature much more than ceramic tile.

Tile over osb subfloor floor.

Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span 360 under total load. Leave a slight 1 16 gap between each. Avoid tile and grout cracks in the finished floor with proper preparation and lots and lots of screws. This is not to say that tile cannot be installed reliably over an osb subfloor.

The most current ansi standards for tile installation a108 1999 specifically exclude osb. I have had people asking about installing sheet lvt and vct directly to the osb subfloor without the use of an underlayment. Ceramic tiling can be installed onto 23 32 osb subflooring panels where the panels are supported by 16 o c. What we put down for a subfloor depends on the budget.

However there is significant debate in the tile industry regarding the conditions necessary for a long lasting successful installation. On higher end jobs we use 3 4 plywood otherwise osb. Direct gluing vinyl sheet and tile to osb subfloors installing a glue down vinyl floor sheet or tile directly over oriented strand board osb subflooring has become a hot topic for me of lately. Ceramic tile doesn t expand contract nearly as much.

As the plywood or osb expands the ceramic won t. Tiling over an old solid wood subfloor is dicey even with a layer of backer board. What is your method for tiling over osb floors. Cover the entire osb subfloor with a layer of 1 4 plywood underlayment.

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. How to put peel stick tiles down on osb step 1.