To avoid building up the floor too high you can use 1 4 in thick backer board instead of 1 2 in.
How to install hardie board on bathroom floor.
The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.
It has to be rock solid before you lay the 1 2 in.
Thanks for your help.
Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.
If you re preparing to do a ceramic floor or wall installation it s recommended that you install hardiebacker cement board on your subfloor or wall before you begin to lay the tile.
Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile.
Prepare a solid squeak free subfloor one of the keys to a long lasting tile installation is the underlying subfloor.
Now the layers of floor are subfloor plywood 1 4 hardie board porcelain tile.
This is a distinct advantage over plywood and drywall.
Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage.
Yes they were more expensive than regular screws but this ensures that it is all installed properly.
I m concerned about ending up with a bathroom floor that s considerably higher than my wood floors.
I m really not sure what to do here.
They were supposed to rip out the plywood put down hardie board and then tile.
With the plywood in place install the backer board as you normally would.
Keep fasteners 3 8 in from board edges and 2 in in from sheet corners.
The wood floor outside of the bathroom is only about 3 4 higher than the plank subfloor in the bathroom.
One package ran about 8 and for our small bathroom it was enough to attach the hardie board for the shower and the floor.
Hardiebacker is available in both 1 4 inch and 42 inch thick hardiebacker 500 versions and is designed to add mold and moisture resistance to tile installations.
Install boards 1 4 in above floor tub or shower pan and caulk accordingly.
Never install new tiles over existing tiles or onto an unprotected wood or plywood floor.
Required tools for this project.
With the hardie board we also purchased the special hardie screws to go with it.
So instead they left the plywood.
Fasten cement board with specified nails or screws as listed in materials required a maximum of 8 in on center at all supports.
The plywood adds stiffness and stability to the floor.
But they said the plywood was glued down to the subfloor and thought tearing it up would cause damage to the subfloor.