What Thickness Cement Board For Bathroom Floor

Hardiebacker cement board is made better to install better and perform better.

What thickness cement board for bathroom floor. Cement fiber or similarly reinforced backer board comes in standard 1 4 inch and 1 2 inch thicknesses. Cement boards generally come in 1 4 inch 1 2 inch and 5 8 inch thicknesses. They also require a 3 4 inch subfloor where tile size exceeds 12 inches. Thick 3 x 5 ft.

For ceramic tile floors the cement board usually rests on a plywood subfloor minimum 5 8 inch thick exterior grade plywood or osb if new ceramic tile is being laid on an existing floor the cement board can usually be laid right over the existing floor finish provided it is in good shape and the extra floor thickness is not a problem. I need to match the height of the existing tile in the bathroom. That ll keep the floor thickness to a minimum. Installing a cement backerboard is crucial when you want a waterproof tile floor that lasts for years without cracking.

Manufacturers also recommend bonding cement board to floors with a 1 4 inch polymer modified thinset coating. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. Would this calculation get me to the right height compressed thin set on top of sub floor 1 8 cement board 1 2 compressed thin set on top of cement board 1 8. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

That s why it was named the most preferred brand of backer board by tile installers and contractors according to the 2019 tile and stone report conducted by clearseas research in partnership with the national tile contractors association and tile magazine. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. To install cement board on floors cement board manufacturers mandate a 5 8 inch plywood subfloor or osb underlayment. Thick cement board instead of the usual 1 2 in.

Cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas. Cement boards that some in sheets. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. If you re installing backer board over an existing subfloor 1 4 inch is sufficient.

Tongue and groove material screw the underlayment down right through the vinyl with 1 1 4 in. This is a distinct advantage over plywood and drywall. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water.

It s typically available in 1 2 in. As long as the subfloor is 3 4 in.