The best approach would be to remove the wood flooring and screw down a layer of 5 8 or thicker plywood followed by a layer of 1 2 cement backer board before laying the tile.
Cement board over hardwood floor.
Wood planks to the plywood.
It s easy to do and will give you the best surface for tile.
Nailing hardwood is done at an angle and the hardness of the cement board may cause the nails to deflect.
You need near 100 contact between the hardibacker and the underlying plywood or the hardibacker will flex and cause your tiles to pop or crack.
Cement backer board is more dimensionally stable than plywood and forms a better bond with the thin set adhesive used to glue the tile down.
Board will only help to break up the cement board as you install the flooring.
Plywood to the concrete.
If your house is old the wood floor may be nailed directly to.
But i ve seen these screw ups for.
When installing tile on a cement backer board like durock or hardie backer board it is critical to.
Nailing could be problematic.
Lay a plastic moisture barrier and then screw 3 4 in.
But it s considerably more difficult to install a 3 4 in.
You can screw down hardy backer 1 4 cement board right over your wood.
If the hardwood flooring is composed of narrow boards with a very smooth flat surface you could leave the flooring in place and screw cement backer board down on top of it before applying the tile.
Wood floor over concrete than over a wood subfloor.
Cement board installation is not something that is incredibly difficult.
Failed floor on cement backer boards why this happens.
If you love solid wood floors and your home rests on a concrete slab you re not out of luck.
Try it and see if it works.
As mentioned before the thinset fills the small gaps between plywood and cement board.
If you can get at least a 3 8 underlayment plus the existing sub floor you should be fine for the hardwood install.
Buy a quality thinset.