Cement Board Thickness For Bathroom Floor

The industry standard is to use 1 2 inch thick backer board on wall tile installations such as a tub surround.

Cement board thickness for bathroom floor. Fiber cement board comes in sheets measuring 3 x 5 feet with a thickness ranging. While you can use all thicknesses of cement board on countertops and floors the minimum. Fiber board is recommended for floor tile installations since thin set mortar adheres well to it ensuring a strong tile to floor bond. Board is readily applied over wood or steel framing spaced 16 in.

Fiber cement board also known as fiber board is made from a sheet of portland cement mixed with sand and cellulose fibers. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile.

On center with corrosion resistant wood steel screws or hot dipped galvanized. This is a distinct advantage over plywood and drywall. To install cement board on floors cement board manufacturers mandate a 5 8 inch plywood subfloor or osb underlayment. As long as the subfloor is 3 4 in.

Cement boards generally come in 1 4 inch 1 2 inch and 5 8 inch thicknesses. I need to match the height of the existing tile in the bathroom. That ll keep the floor thickness to a minimum. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

Usg durock brand cement board with edgeguard offers architects builders and tile contractors a strong water durable tile base for tub and shower areas. I plan on thinsetting and screwing cement board to the subfloor then redgard then thin set and tile. Thick cement board instead of the usual 1 2 in. While using 1 4 thick rather than 1 2 thick cement backer board is acceptable how you install the backer board and attach it to the plywood subfloor is as important as how you lay the tile on top of it.

Manufacturers also recommend bonding cement board to floors with a 1 4 inch polymer modified thinset coating. 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. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. Drywall screws spaced every 6 in.

Installing a cement backerboard is crucial when you want a waterproof tile floor that lasts for years without cracking. Tongue and groove material screw the underlayment down right through the vinyl with 1 1 4 in. They also require a 3 4 inch subfloor where tile size exceeds 12 inches. Cement backer board comes in two standard thicknesses 1 2 inch and 1 4 inch.