Try laying tile over 1 2 durock or hardie and see what happens when the joists are 19 2 or 24 on center.
Ceramic tile over wood subfloor installation.
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 inch exterior plywood the opposite direction and screw to the inch.
Tile floors are heavy and tile is a hard material.
If you must install over such surfaces it is best to install a backer board over the old surface and install the tile on the backer board.
Lay down inch exterior plywood and screw into the 2 3 s every 8 inches.
The 2 3 s would be standing up on their side so.
Second the strength of wood boards isn t always consistent.
A plywood subfloor must be structurally sound and able to support the installation.
While tile can be laid on plywood do not install tile directly onto the plywood subfloor itself.
First changes in humidity make solid wood shrink swell and cup more than plywood.
Laying tile on plywood.
Cement backer board can provide a solid flat surface to install tiles on if you have a wood subfloor.
Hope you didn t like your beautiful new tile floor.
Use intervening layers of two sheets of plywood.