Cement board technically called cementitious backer unit cbu is manufactured under different brand names.
Concrete board for tile floor.
The other is foam backer board which is ok to install over concrete.
This can be beneficial if you are wanting to insulate concrete from an electric floor heating system above it.
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Cement board is used for most floor tile and has all but replaced plywood and drywall backer materials for wall tile applications in wet areas like showers and tub surrounds.
And is available at most full service lumberyards and building supply centers.
Whatever your subfloor is made of be sure it s squeak free before you install the cement board.
Thick cement board spans studs spaced 16 in.
This is a distinct advantage over plywood and drywall.
It is very important to first spread thin set on the floor before placing the cement board to the floor.
Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.
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It has to be rock solid before you lay the 1 2 in.
The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.
Can improve the efficiency of radiant heat by up to 40 acts as an uncoupling membrane reducing the risk of transfer cracks in tiles.
The standard size sheet is 3 x 5 ft.
One of which is self leveling underlayment and other floor flattening products.
Prepare a solid squeak free subfloor one of the keys to a long lasting tile installation is the underlying subfloor.
Cement board forms a durable stable base for tile and it has no organic materials unlike drywall greenboard or plywood so it is not prone to mold rot shrinkage or decomposition due to moisture.
On concrete floors goboard will act as thermal insulation under the tile.
Find backer board at lowe s today.
Sizes 3 x 5 x 1 2 and 1 4.
Which will help prevent the tile from cracking.
James hardie 0 42 in x 36 in x 60 in hardiebacker with hydrodefense technology fiber cement backer board.
Then you attach the cement board with screws.
This step is crucial because it strengthens the floor and it helps prevent floor movement.