Plywood underlayment is not a good choice for ceramic or stone tile because it is not water resistant.
Tile over plywood.
Install 1 4 inch cork by thin setting it to the concrete pad then installing the heating system by fastening it to.
If you put tile directly on top of plywood it will chip and break.
The basic answer to whether you should lay ceramic directly over.
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.
Begin by applying the thin skin adhesive to the plywood with a smooth trowel.
To install ceramic tile over wood the wood surface must be structurally sound enough to support the weight of the tile.
Then you want to install screws into the concrete board in each of the holes.
To install the concrete board apply tile adhesive to the back then press it down against the plywood.
The preferred method for tile installations is to use a sheet of underlayment.
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.
Lay down a vapour barrier overtop the concrete pad then fasten 3 4 inch plywood using a ramset to the concrete pad.
Try laying tile over 1 2 durock or hardie and see what happens when the joists are 19 2 or 24 on center.
You cannot install tile directly onto plywood because it is not dimensionally stable.
For this project we are using the tavy thin skin system to prepare the surface for tile.
A couple options considered are.
Laying tile over a plywood subfloor can be tricky but.
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 possible you should always use concrete board underlayments rather than plywood.
Ceramic tile over plywood or osb problems with ceramic directly on plywood or osb.
For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings.
Use intervening layers of two sheets of plywood.
Proper way to lay ceramic on plywood or osb.
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.
For floor tile in any room use cementboard or a similar tile backer instead.