Do you have to use cement board when tiling a floor?

Whenever you're laying tile on a wood subfloor, you need to first install cement backer board. Backer board prevents leaks and water damage that could harm your flooring and the structure of your home.
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Can you tile without cement board?

As long as a concrete slab is very flat and contains no cracks, tile can be installed directly on top, using thinset as the adhesive, allowing you to skip the backer board layer. If the slab is uneven or cracked, it must first be patched and leveled before tile can be installed.
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What can I use instead of cement board?

Glass mat gypsum board is a better choice. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. DensShield is one common brand. It is easier to cut than cement board, it is mold resistant, and it has a built-in moisture barrier.
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Can you tile directly on plywood?

Tile can be laid on plywood. But do not install tile directly on the plywood subfloor itself. Use an intervening layer of a sheet of thinner plywood.
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Do you have to use cement board?

Do You Have to Use Cement Board Behind Tile? It's imperative to use a cement board or another waterproof backing board behind the tile in your shower. In most other applications, including in kitchens, you can tile directly onto drywall.
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DUROCK Cement Board Do's and Dont's



How do you lay tile on a plywood subfloor?

On a plywood subfloor, you need either a layer of cement backer board or an underlayment membrane, like Custom Building Products' Wonderboard and RedGard, between the subfloor and tile for the thin-set adhesive to achieve a good bond.
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How do you lay tile on a wood floor?

Tiling directly onto wood is not recommended, because it can swell and shrink during humidity, which can cause the tiles to crack or come loose.
  1. Lay down 1/2-inch thick cement backerboard over the wood subfloor or hardwood. ...
  2. Apply fiberglass tape to each seam in the backerboard to cover it.
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Do I need backer board for floor tile?

Whenever you're laying tile on a wood subfloor, you need to first install cement backer board. Backer board prevents leaks and water damage that could harm your flooring and the structure of your home.
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Can you lay tile on wood?

Can you tile on wood floorboards? Good news, yes you can! Tiling over floorboards is possible with the use of plywood or backer boards. In short, a layer of 'board' over your floorboards will keep the surface you're tiling strong and sturdy, and help you minimise any movement from your old floorboards.
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What do you put under tile floor?

Underlayment is something you put on top of your substrate to prepare it for tiling. The substrate (or subfloor) is the ground, whether it's made of plywood or cement. Cement board or backer board are the most standard underlayments. They come in various thicknesses for different spaces.
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How thick should cement board be under tile floor?

Floors: A 1/4-inch minimum thickness is needed, but thicker panels are also fine. Walls: Use 1/2-inch or 5/8-inch-thick cement board, not 1/4-inch. The extra thickness is needed when spanning the studs and it provides a solid base for the tile.
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Which backer board is best for floors?

Half-inch cement backer board is ideal for most tiling jobs, including walls, floors, countertops, and ceilings. For flooring, the backer board should be installed over a 5/8-inch thick OSB or plywood base. For countertops, use 3/4-inch plywood beneath the backer board.
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Do you have to waterproof cement board?

Most concrete backer-boards on the market today are not water-resistant, but all are waterproof. Since many people confuse the terms, it is a common misconception that this is the best material for use inside a shower or tub area.
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Can you install tile directly on concrete?

You can install the tile directly on the concrete. You can install a CBU or cement board on the concrete, then the tile on top of that. Finally, you can use an uncoupling membrane between the tile and the concrete.
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Can you tile on MDF?

NEVER TILE ONTO MDF! Medium density fibreboard is only compressed sawdust. Even primed, it will still draw in moisture. Ply or Hardi is the way to go.
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Can you tile on OSB board?

Ceramic tiling can be installed onto 23/32” OSB subflooring panels where the panels are supported by 16” o.c. joist spacing. Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span/360 under total load.
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Can you tile over a wooden floor?

You can tile over your wooden subfloors or old hardwood floor. However, it is important that you follow the same rules as you would for any other suitable installation. If your hardwood floor is level and in good condition, it is possible to install tiles over the surface.
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Does grout stick to wood?

When you grout, you have to be very careful where the grout touches the up against the wood table. If you use sanded grout, the sand can scratch the wood finish. Don't get any more grout on the wood than is necessary.
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What kind of subfloor is needed for ceramic tile?

As with a wooden subfloor, a concrete subfloor must be level for successful tile installation. Additionally, steps must be taken to ensure that a concrete floor will create a solid bond. Your concrete floor should be clean, dry, flat and free of adhesives.
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What is the thinnest backer board for tile?

A vertical backerboard over which you plan to tile should be at least 1/2 inch thick.
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What is the purpose of cement board?

The primary purpose of cement boards is to serve as backing for tile and is superior to paper-covered gypsum at this task because of its resistance to water – as tile is typically used in areas prone to water exposure, it is important to have a backing that will not develop mold and mildew or disintegrate after ...
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Will tile mortar stick to wood?

In any case, to bond tile to wood, you must use a flexible thin-set mortar with a latex additive. Wood shrinks and swells with humidity and frosts, which can break the bond between ordinary tile and thin-set.
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How thick should tile subfloor be?

The subfloor under the tile should be at least 1 1/8″ thick, with a minimum of 5/8″ thick exterior grade plywood topped by 1/2″ cement backer board.
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What holds tile down?

Thinset mortar is the adhesive that'll hold the tile to the floor. Often, you'll see it referred to as thinset.
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