Then i would remove any loose tiles and scrap away any adhesive that is left on the ply and tile you want the ply and tile to be perfectly clean for the next stage.
Attaching tile to plywood wall.
Tiling onto plywood using a standard tile adhesive can be problematic initially i would make sure that the plywood surrounding the pipe work is secure and that you don t have any movement in it.
The best method is to refasten the subfloor then add a layer of plywood.
There are thin set dry set mortars design specifically for adhering ceramic tile to plywood that is designated as an ansi a118 11 thin set mortar.
Remove any obstacles from the installation area.
Unscrew switch plate and outlet covers and set aside.
Use the right type of plywood.
According to backer board manufacturers and tile setters installing backer board directly over an old solid wood subfloor is risky for a couple of reasons.
The silicone or urethane adhesives should work too but the thin set mortars are easier to work with and easier to get full adhesive contact between the tile and its substrate.
Tips for laying tile on plywood subfloor.
For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings.
The preferred method for tile installations is to use a sheet of underlayment.
Then in either case the subfloor should probably be about an.
However the floor must be properly reinforced to minimize flexing.
First changes in humidity make solid wood shrink swell and cup more than plywood.
You may also want to tile an outdoor shed or tile plywood boards for display.
For flooring use intervening sheets of plywood.
The joists if they re 2x8 newer code and not 2x10 older code must be braced every four feet with cross braces which minimizes independent flexing of each joist and the subfloor above.
There may be times when you want to bond tile directly to plywood or another wood surface rather than screwing down backerboard first.
Level the surface using a wood filler.
Fill in all large gaps and holes as these will prevent proper adhesion of the tiles.
Space the field and edge fasteners.
How to glue tile to wood.
If possible you should always use concrete board underlayments rather than plywood.
While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself.
Backerboard can double the thickness of an installation which can be troublesome in some locations.