If the subfloor is plywood install a layer of cement backer board on top before tiling.
How to lay ceramic tile on plywood subfloor.
There are two materials commonly used for laying ceramic on plywood or osb that are applied before the tile.
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.
Use a polymer modified thin set a type of mortar to attach the backer board to the subfloor.
Use a large bucket and.
It should be fastened to the subfloor using thinset and then screwed down every 10 square.
If the old subfloor is covered with a thick bed of mortar that s in good condition you can tile over it.
Use thinset with a higher latex content.
Wet locations such as bathrooms require the addition of a waterproofing layer.
Tips for laying tile on plywood subfloor for flooring use intervening sheets of plywood.
With a trowel scoop out and spread enough mortar on.
Use the right.
In residential use the tile council of north america specifically allows ceramic tile to be installed directly over 1 2 in.
If the mortar bed is uneven or cracked apply a leveling or patching compound as needed first.
No matter how firm the subfloor.
Thinset is the wet base that you first trowel on the plywood to make the tile.
Concrete board concrete board also called backer board comes in 1 4 and 1 2 thicknesses and is usually sold in 4 x 6 sheets.
There s a caveat though.
Mix your thinset according to the instructions on the bag.
While tile can be laid on plywood do not install tile directly onto.
While you can lay tile directly over a concrete slab using thin set adhesive don t make the mistake of applying tile directly to a plywood subfloor.
Install the sheets one at a time.
Follow the directions on the packaging to properly mix the thin set mortar.