A couple options considered are.
Tile over plywood.
To install the concrete board apply tile adhesive to the back then press it down against the plywood.
If possible you should always use concrete board underlayments rather than plywood.
For floor tile in any room use cementboard or a similar tile backer instead.
Use thinset with a higher latex content thinset is the wet base that you first trowel on the plywood to make the tile stick.
If you put tile directly on top of plywood it will chip and break.
Use intervening layers of two sheets of plywood.
Laying tile over a plywood subfloor can be tricky but.
Then you want to install screws into the concrete board in each of the holes.
Try laying tile over 1 2 durock or hardie and see what happens when the joists are 19 2 or 24 on center.
Tile can be installed over a plywood substrate and it is actually a fantastic way to make sure you don t have deflection in your floor.
Once the surface is completely covered cover the adhesive with the fiberglass based paper and smooth out any wrinkles or bubbles with a broad drywall knife.
Good results from proper.
You cannot install tile directly onto plywood because it is not dimensionally stable.
To install ceramic tile over wood the wood surface must be structurally sound enough to support the weight of the tile.
Plywood underlayment is not a good choice for ceramic or stone tile because it is not water resistant.
Ceramic tile over plywood or osb problems with ceramic directly on plywood or osb.
The preferred method for tile installations is to use a sheet of underlayment.
For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings.
Begin by applying the thin skin adhesive to the plywood with a smooth trowel.
Concrete board concrete board also called backer boardcomes in 1 4 and.
For this project we are using the tavy thin skin system to prepare the surface for tile.
To simplify your decision consider plywood underlayment if it is recommended by the flooring manufacturer.
While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself.
The basic answer to whether you should lay ceramic directly over.
Install 1 4 inch cork by thin setting it to the concrete pad then installing the heating system by fastening it to.