How To Install Hardie Board On Bathroom Floor

Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage.

How to install hardie board on bathroom floor.

The wood floor outside of the bathroom is only about 3 4 higher than the plank subfloor in the bathroom. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. They were supposed to rip out the plywood put down hardie board and then tile. This is a distinct advantage over plywood and drywall.

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. The plywood adds stiffness and stability to the floor. Never install new tiles over existing tiles or onto an unprotected wood or plywood floor.

One package ran about 8 and for our small bathroom it was enough to attach the hardie board for the shower and the floor. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. I m concerned about ending up with a bathroom floor that s considerably higher than my wood floors. Prepare a solid squeak free subfloor one of the keys to a long lasting tile installation is the underlying subfloor.

Keep fasteners 3 8 in from board edges and 2 in in from sheet corners. I m really not sure what to do here. It has to be rock solid before you lay the 1 2 in. Now the layers of floor are subfloor plywood 1 4 hardie board porcelain tile.

So instead they left the plywood. Thanks for your help. 5 steps to a sound ceramic floor. Others yet have recommended laying down plywood first then hardie board then tile.

Unlike wood or drywall sub surfaces cement backerboard will not rot warp or grow mold and mildew when exposed to water. But they said the plywood was glued down to the subfloor and thought tearing it up would cause damage to the subfloor. Yes they were more expensive than regular screws but this ensures that it is all installed properly. 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.

Required tools for this project. To avoid building up the floor too high you can use 1 4 in thick backer board instead of 1 2 in. Install boards 1 4 in above floor tub or shower pan and caulk accordingly.