How To Install Ceramic Tile Under Plywood Subfloor

Use a polymer modified thin set a type of mortar to attach the backer board to the subfloor.

How to install ceramic tile under plywood subfloor.

Use thinset with a higher latex content thinset is the wet base that you first trowel on the plywood to make the tile stick. Bc plywood over the old subfloor using construction adhesive and driving 1 1 4 in. Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. Add a layer of 1 2 in.

You can have 5 8 osb and 19 2 oc joists and it still works. Install a cement based backer board following the manufacturer s instructions. The coach demonstrates how to install a 3 8 plywood subfloor in a bathroom. If you want to know why it s because it pretty much doesn t matter what the subfloor is under that plywood.

While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself. In my experience tile applied directly to plywood will be a short lived installation and more likely to encourage rot in areas near a tub or shower. There are tile companies that actually use 3 4 exterior rated plywood as their standard substrate with a quality modified thinset. Screws every 6 in.

Pull the tile up and check the back of the tile. I ll either use 1 4 inch cement backerboard or a proprietary product like schluter ditra. The plywood adds stiffness and stability to the floor. Lift one sheet leave the rest in place and spread thinset directly onto the subfloor filling the area left by the sheet use a 1 4 x 1 4 notch trowel.

Put the first test tile onto the thin set bed. It should be completely covered with thin set. Mix your thinset according to the instructions on the bag. Secondly i would never tile directly over the plywood as this video seems to imply is acceptable.

This provides a solid surface under the tile that prevents flexing that could lead to cracking. Always follow the manufacturer s installation. With the plywood in place install the backer board as you normally would. Install the sheets one at a time.

Need to install a subfloor. 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.