How To Install Hardie Board On Bathroom Floor

The plywood adds stiffness and stability to the floor.

How to install hardie board on bathroom floor.

With the plywood in place install the backer board as you normally would. 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. Now the layers of floor are subfloor plywood 1 4 hardie board porcelain tile. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage.

I m concerned about ending up with a bathroom floor that s considerably higher than my wood floors. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. Never install new tiles over existing tiles or onto an unprotected wood or plywood floor. I m really not sure what to do here.

Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water. With the hardie board we also purchased the special hardie screws to go with it. Yes they were more expensive than regular screws but this ensures that it is all installed properly. 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.

The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet. Prepare a solid squeak free subfloor one of the keys to a long lasting tile installation is the underlying subfloor. Install boards 1 4 in above floor tub or shower pan and caulk accordingly. This is a distinct advantage over plywood and drywall.

Thanks for your help. But they said the plywood was glued down to the subfloor and thought tearing it up would cause damage to the subfloor. So instead they left the plywood. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.

It has to be rock solid before you lay the 1 2 in. They were supposed to rip out the plywood put down hardie board and then tile. Others yet have recommended laying down plywood first then hardie board then tile. One package ran about 8 and for our small bathroom it was enough to attach the hardie board for the shower and the floor.

Required tools for this project. Keep fasteners 3 8 in from board edges and 2 in in from sheet corners. 5 steps to a sound ceramic floor.