How To Install Ceramic Tile Under Plywood Subfloor

Add a layer of 1 2 in.

How to install ceramic tile under plywood subfloor.

You can have 5 8 osb and 19 2 oc joists and it still works. This provides a solid surface under the tile that prevents flexing that could lead to cracking. Pull the tile up and check the back of the tile. It should be completely covered with thin set.

Need to install a subfloor. Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. Bc plywood over the old subfloor using construction adhesive and driving 1 1 4 in. There are tile companies that actually use 3 4 exterior rated plywood as their standard substrate with a quality modified thinset.

Always follow the manufacturer s installation. Mix your thinset according to the instructions on the bag. While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself. I ll either use 1 4 inch cement backerboard or a proprietary product like schluter ditra.

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. 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. Use a polymer modified thin set a type of mortar to attach the backer board to the subfloor. The plywood adds stiffness and stability to the floor.

Use thinset with a higher latex content thinset is the wet base that you first trowel on the plywood to make the tile stick. Lay the tile flat and then with mild pressure slide the tile 1 4 inch back against the thin set ridges then slide it back into place. Once you have filled the space place the sheet down onto the thinset. Secondly i would never tile directly over the plywood as this video seems to imply is acceptable.

If you want to know why it s because it pretty much doesn t matter what the subfloor is under that plywood. Put the first test tile onto the thin set bed. Install the sheets one at a time. With the plywood in place install the backer board as you normally would.

The coach demonstrates how to install a 3 8 plywood subfloor in a bathroom. Use intervening layers of two sheets of plywood.