Hope you didn t like your beautiful new tile floor.
Ceramic tile over wood subfloor installation.
Lay down inch exterior plywood and screw into the 2 3 s every 8 inches.
If installing over an appropriate wood surface sand the wood to make it smoother and remember that the installation will work better over a subfloor at least 1 1 8 inches thick.
Laying tile on plywood.
Use intervening layers of two sheets of plywood.
A plywood subfloor must be structurally sound and able to support the installation.
The 2 3 s would be standing up on their side so.
Tile floors are heavy and tile is a hard material.
Second the strength of wood boards isn t always consistent.
First changes in humidity make solid wood shrink swell and cup more than plywood.
Try laying tile over 1 2 durock or hardie and see what happens when the joists are 19 2 or 24 on center.
Cement backer board can provide a solid flat surface to install tiles on if you have a wood subfloor.
Lay down inch exterior plywood the opposite direction and screw to the inch.
Build a structure of 2x3 s with 8 inches of space between the boards.
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.