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.
Attaching ceramic tile to plywood.
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.
Unscrew register covers and save the screws.
This guide will teach you how to properly lay cement backerboard and use mortar to secure and level your subfloor before installing tile.
You can bond tile directly to a plywood subfloor and expect it to last.
The preferred method for tile installations is to use a sheet of underlayment.
If possible you should always use concrete board underlayments rather than plywood.
This will cause either the tile itself to crack and even come loose or cause the grout to crack inside the joints.
While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself.
For flooring use intervening sheets of plywood.
Unscrew switch plate and outlet covers and set aside.
Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water.
How to glue tile to wood.
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.
Space the field and edge fasteners.
Tips for laying tile on plywood subfloor.
Then in either case the subfloor should probably be about an.
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.
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.
Remove any obstacles from the installation area.
Plywood or osb flakeboard can expand and contract at too high a rate to be a stable foundation for tile.
However the floor must be properly reinforced to minimize flexing.
Never install new tiles over existing tiles or onto an unprotected wood or plywood floor.
Installing ceramic floor tile to a plywood sub floor has unique challenges beyond that of installation on a concrete floor.
Use thinset with a higher latex content.
You can bond tile directly to wood with a flexible adhesive.
For wall installations plywood is overkill beneath the concrete or fiber board which is designed in five eighths inch material for wall settings.
Backerboard can double the thickness of an installation which can be troublesome in some locations.