Cement Board Thickness For Floors

While you can use all thicknesses of cement board on countertops and floors the minimum.

Cement board thickness for floors. Hardiebacker cement board is made better to install better and perform better. Here s the right way to attach cement backer board to a plywood subfloor. 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.

That ll keep the floor thickness to a minimum. Board is readily applied over wood or steel framing spaced 16 in. Drywall screws spaced every 6 in. Cement boards generally come in 1 4 inch 1 2 inch and 5 8 inch thicknesses.

On center with corrosion resistant wood steel screws or hot dipped galvanized. 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. I need to match the height of the existing tile in the bathroom. This is a distinct advantage over plywood and drywall.

Cement boards that some in sheets. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. 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. As long as the subfloor is 3 4 in.

To install cement board on floors cement board manufacturers mandate a 5 8 inch plywood subfloor or osb underlayment. 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. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

Manufacturers also recommend bonding cement board to floors with a 1 4 inch polymer modified thinset coating. Cement fiber or similarly reinforced backer board comes in standard 1 4 inch and 1 2 inch thicknesses. 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. Usg durock brand cement board with edgeguard offers architects builders and tile contractors a strong water durable tile base for tub and shower areas.

Also an ideal underlayment for tile on floors and countertops in new construction and remodeling.