Make sure grout joints are completely filled.
Tile on wood subfloor.
A couple options considered are.
If the subfloor is 5 8 or 3 4 you can probably apply tile directly to it with no problem.
Use a large bucket and.
The best method is to refasten the subfloor then add a layer of plywood.
It is a good idea to put half inch plywood underlay to strengthen the floor before using modified thin set to put the tile directly on wood.
Use thinset with a higher latex content.
Allow grout to set for 10 20 minutes then lightly clean tile and shape grout joints with a damp sponge.
Thinset is the wet base that you first trowel on the plywood to make the tile.
Wooden subfloors in older houses need to be strengthened and stabilized before backer board and tile are installed.
Using cool clean water mix the grout to a lump free non pourable consistency.
Sandynovember 14 2015 at 5 31 pm.
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.
While tile can be laid on plywood do not install tile directly onto.
Use the right.
Tips for laying tile on plywood subfloor for flooring use intervening sheets of plywood.
Using a grout float held at a 45 angle spread grout firmly into tile joints.
Follow the directions on the packaging to properly mix the thin set mortar.
First changes in humidity make solid wood shrink swell and cup more than plywood.
Use a polymer modified thin set a type of mortar to attach the backer board to the subfloor.