Best answer

Undamaged cement backer board does not need to be replaced. If tile has not been attached directly to the backer board, and it has not been dented or punctured, it can be reused without any special preparation.

Answered by: loganfsmyth Date created: Jun 23, 2022

Do you need to waterproof cement board before tiling?

Asked By: Murat Colyaran Date created: Jun 19, 2022

So, if you're looking for durability and strength, concrete backer-board will probably be your choice. First, you should provide a waterproof/resistant membrane against the wood studs before installing the concrete backer-board to protect the wood studs from moisture absorbed through the backer-board.

Answered By: Shamoon Date created: Jun 21, 2022

Is backer board and cement board the same?

Asked By: blhsing Date created: Jun 24, 2022

Also called a cementitious backer unit or CBU, backer board is made of cement, water, silica, limestone flour, and fibers such as Kevlar or fiberglass for strength. Because cement backer board is porous, thinset, grout, and mortar adhere well to it.1 Dec 2019

Answered By: Daniel Vandersluis Date created: Jun 27, 2022

Is cement board needed for floor tile?

Asked By: Matt U Date created: Jun 19, 2022

In short, tile and grout are not inherently waterproof. Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete.1 Dec 2019

Answered By: nalzok Date created: Jun 20, 2022

Can you paint cement board in shower?

Asked By: nickbullock Date created: Jun 13, 2022

Can you paint cement board in shower? Not likely. but Hardie backer board's official installation tutorial says it can be finish with paint. Use the backer board on the tiled part, and use the moisture resistant drywall on the rest.

Answered By: Keith Thompson Date created: Jun 15, 2022

Do you have to use thinset under cement board?

Asked By: cameron1024 Date created: Jun 16, 2022

No Thinset underneath the backer board “The thinset goes ON TOP of the cement board to stick the tiles!” ... Cement board is a different product and it needs to be installed in its own way. Additionally, screws don't take the place of thinset either.

Answered By: some Date created: Jun 17, 2022

Can I use deck screws for cement board?

Asked By: WitVault Date created: Jun 25, 2022

It's best to use the cement board screw, but a deck screw will do just fine. ... Use screws designed for cement board like Rock-On screws. They start easier than drywall screws in CBUs. They're easier to use, don't rust as easily and hold better.

Answered By: Alasdair Date created: Jun 25, 2022

Can I use drywall mesh tape for cement board?

Asked By: Razor Date created: Jun 15, 2022

No. The Mold-X10 fiberglass mesh tape is made for drywall seams and intended to be coated with joint compound. FibaTape's Cement Board Tape is the product for cement board. The alkali-resistant coating protects the fiberglass from degradation that can occur with thin-set mortar.

Answered By: ryanve Date created: Jun 18, 2022

Do you need to put a vapor barrier behind cement board?

Asked By: Steve McLeod Date created: Jun 14, 2022

You should NOT place a vapor barrier BEHIND the backer board. Where, pray tell, would any such collected vapor/water go? Answer:There's nowhere proper for such moisture to egress. The current best practice is to place waterproofing OVER the backetboard and just UNDER the tile.

Answered By: polygenelubricants Date created: Jun 15, 2022

Does cement board have to be waterproofed?

Asked By: Lightness Races in Orbit Date created: Jun 19, 2022

So, if you're looking for durability and strength, concrete backer-board will probably be your choice. ... First, you should provide a waterproof/resistant membrane against the wood studs before installing the concrete backer-board to protect the wood studs from moisture absorbed through the backer-board.

Answered By: osgx Date created: Jun 21, 2022

Does mortar stick to cement board?

Asked By: Mateusz Dorobek Date created: Jun 22, 2022

Cement backer board is commonly used to form a base for ceramic tile. ... Because cement backer board is porous, thinset, grout, and mortar adhere well to it. Backer boards can be nailed or screwed into studs or cinderblock, brick mortar, or concrete.

Answered By: Naslausky Date created: Jun 25, 2022

Related Question Answers

John Feminella

Professor

Is backer board the same as cement board?

Cement backer board is also called cement board, and it's the most commonly used backer board for all manner of ceramic and porcelain tiles. Made of cement and reinforced on the top and bottom with fiberglass, this waterproof backer board is generally used for tiled shower surrounds and floors in wet areas.

SebMaz93

Professor

Can you use cement board in a shower?

In showers, the standard substrate is tile backer, also called cement board or cement backer board. Ceramic and porcelain tile, more than almost any other surface material, needs a stable, flat, flex-free substrate. Even the slightest amount of movement in a building structure can telegraph to the tile and crack it.

DavidG

Professor

Can I use 1/4 cement board on floors?

Both 1/4- and1/2-inch cement board are appropriate for floors. To install cement board on floors, cement board manufacturers mandate a 5/8-inch plywood subfloor or OSB underlayment.

svenwltr

Professor

Can you lay tile without cement board?

In either case you use whatever tools are necessary to get it back to a clean subfloor. The second way to interpret your question is, after you've removed and cleaned off the old floor, can you install new tile without backer board. Well yes.

Mayank Pandeyz

Professor

Can you tile directly onto cement board?

Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete. Manufactured veneer stone is another use for cement backer board.

joran

Professional

Can plaster of paris be reused?

Reuse of uncontaminated plaster of Paris can be accomplished by breaking the set plaster into small pieces, placing it in an old roasting pan and reheating it to its melting point -- 325 degrees Fahrenheit -- to remove water (See References 8). When the material can easily be crushed into powder it is ready for reuse.

AnthonyWJones

Professional

Can you glue stone veneer to cement board?

What can I put stone veneer on for an interior application? For interior applications, stone veneer can be installed over cement board, drywall, and all of the above.

tzaman

Professional

Can you just screw down cement board?

If you have ever tried removing thin-set installed backer board then you will know why. You will be taking up the floor down to the floor joists if you ever want to remodel. Just screw down and tape joints like manufacturer recommends.

Stephan Muller

Professional

Can you put cement over silicone?

Yes, silicone will stick to cement board.

In fact I highly recommend that you use cement board such as 'Durock' as your backer board.

Use proper screws.

Such as the specific cement board screw..

Joe Audette

Professional

How do you fill gap between cement board and tub?

Technically, after the tile is installed over the backer board that gap between it and the tub ledge should be filled with an ASTM C920 sealant (caulking e.g. silicone). Although some say you should have weep holes along this gap so any water behind can weep out into the tub.

thanksd

User

Can you use cement board instead of drywall?

Regular drywall is not appropriate. Many professional installers even recommend against using water- or mold-resistant drywall in high-moisture areas. In sharp contrast, cement backer board does not rot, warp, grow mold, or deteriorate when subjected to water.

ypercubeᵀᴹ

User

Can you're tile over old cement board?

Undamaged cement backer board does not need to be replaced.

If tile has not been attached directly to the backer board, and it has not been dented or punctured, it can be reused without any special preparation..

Thatkookooguy

User

Do I have to use cement board under Wall Tile?

In short, tile and grout are not inherently waterproof. ... Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete.

devserkan

User

Do you have to replace cement board under tile?

Undamaged cement backer board does not need to be replaced.

...

It is difficult to remove tile from a cement backer board, and even more difficult to avoid damaging the board in the process.

Since backer board is relatively inexpensive, it's not normally worth the time and labor it would take to remove the tile to save it..

dani herrera

User

Does cement backer board burn?

The backer board will burn out eventually. You also need to build an insulated heat riser for best performance. A bell around/over the heat riser cannot be cement board as the heat in parts of that will be much too intense.

A5C1D2H2I1M1N2O1R2T1

Guest

Does cement board go over lip of shower pan?

The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area.

Apply it to the wall with the bottom edge about 1/4 in.

above the lip of the tub.

...

Fill the gap between the tile and the tub with caulk..

Lior Bar-On

Guest

Does cement board need to be sealed?

While you don't always need to seal backer board, it sometimes make sense to do so. If you are installing backer board in an area that will be subject to a great amount of moisture, like in a shower, then it makes sense to put a waterproofing sealer on it.

Siebe Jongebloed

Guest

Does silicone stick to cement board?

Yes, silicone will stick to cement board. In fact I highly recommend that you use cement board such as 'Durock' as your backer board. Use proper screws. Such as the specific cement board screw.30 Sep 2015

Lutz Prechelt

Guest

Does concrete board burn?

The backer board will burn out eventually. You also need to build an insulated heat riser for best performance. ... You want to use brick or other heat resistant thick masonry for the bells. A bell around/over the heat riser cannot be cement board as the heat in parts of that will be much too intense.

snakecharmerb

Guest

What thickness cement board should I use?

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..

barny

Guest

Which way does cement board go?

One nice thing about tile backer board is that it doesn't matter which way that you run the sheets. You can run them one direction or another but as long as the corners don't all come together it's OK. Additionally, you don't want the cement board seams to line up with the subfloor seams.

joao

Guest

Will silicone adhere to cement board?

Yes, silicone will stick to cement board. In fact I highly recommend that you use cement board such as 'Durock' as your backer board. Use proper screws.

noɥʇʎԀʎzɐɹƆ

Guest

How do I attach concrete board to plywood?

Position each piece of backer board in the thin-set, press in place, and attach using special backer board screws on the spacing recommended by the backer board manufacturer.

Cover the joints in the backer board with fiberglass tape embedded in thin-set adhesive and allow to set before tiling..

Hasan Abbasi

Guest

Do I need cement board for kitchen backsplash?

But for a tile backsplash, if your wall is good and plumb, without any major ridges or problems, you don't always need to use a backer board, often you can just apply thinset to the walls and put your tiles in place.

tarzen chugh

Guest

Does cement board go over tub lip?

The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. Apply it to the wall with the bottom edge about 1/4 in. above the lip of the tub. ... Fill the gap between the tile and the tub with caulk.

blackbiron

Guest

What is the best way to cut cement board?

Score-and-Snap The simplest way to cut cement backer board is to score the surface and snap the sheet along the scored line, similar to the way you'd cut drywall.

In fact, you can use a drywall utility knife to score backer board, but a better option is a carbide-tipped scoring tool..

poke

Guest

Should I put plastic behind cement board?

No plastic sheeting goes behind the cement board. A liquid waterproofing membrane, such as RedGard or Hydro Ban, is applied to the cement board and allowed to cure. Then, tile is installed over the membrane.

ciekals11

Guest

Can I use regular drywall screws on cement board?

You don't want to use regular drywall screws for cement boards. They can corrode, they can break down the edges of the boards, and they won't drive in flush properly. Use ITW's ROCK-ON and BACKER-ON screws instead.

Nosredna

Guest

Can I use thinset on cement board?

Use thin-set mortar when installing cement backerboard. Thin-set dries slowly, allowing you to fix and readjust backerboard sheets as needed.

Ilya

Guest

Do I need plywood under cement board?

Because cement board can be used either for floors or walls, the surface below the cement board will vary: Flooring: For ceramic tile floors, the cement board usually rests on a plywood subfloor (minimum 5/8-inch-thick exterior-grade plywood or OSB).

Frederic Henri

Guest

How do you cut a round hole in cement board?

You can also cut holes using a jigsaw with a metal-cutting blade or a drill fitted with a carbide-grit hole saw. When using a jigsaw to cut a round or square hole, start by drilling a hole through the backer board with a 3/8-inch-diameter masonry drill bit. Then insert the jigsaw blade into the hole and start cutting.

Legend

Guest

How do you remove cement board screws?

Remove all of the visible screws from the backer board with a drill/driver. Some of them be covered with mortar or mastic. Look for patterns or screw heads. Use the tip of a pry bar or sharp end of a claw hammer to chip away the material to reveal screw heads and remove them.

techtabu

Guest

Can I reuse cement dust?

You are correct. The cement has already reacted with water during the initial mix. There may be some unhydrated dust, but it won't be enough to react and form anything significantly stronger than mud bricks. ... The chemical reaction is done for the most part.

Marcos Casagrande

Guest

Can you reuse a concrete slab?

Old concrete slabs may be reused in several construction projects, depending on the material's size and shape. You may be asking why there's a need to reuse concrete, considering that cement and other construction materials are readily available. ... Reusing old materials also allows you to help save the environment.

Stefan Steinegger

Guest

Can you reuse concrete pavers?

Pavers with chips, especially small chips, may be fine to reuse. However, if you want your new paver project to look immaculate, you may want to replace these chipped stones, too. ... Pavers can fade over time, especially if they're in direct sunlight.

Mason Wheeler

Guest

Can you caulk cement board in shower?

In the event the caulk seal between the bottom row of tile and the tub/shower fails, water can get behind the tile. If the backer board is touching this ledge, it will readily soak up this water like a sponge. ... Then, before installing the tile, apply a bead of pure silicone caulk between the backer board and the ledge.

Barmar

Guest

Do you have to glue down cement board?

You cannot put a cement backer board over that. You need to put a layer or plywood, minimum 5/8 IIRC, over those boards, then mortar the backer to the plywood. Those 1x8 boards won't give a solid foundation and will flex. Over time, that will cause tile to pop loose or crack.

Nima Talebi

Guest

How much space should be between cement board and tub?

1/4"The backer board should overlap the tub flange so the tile has a stable backing to attach to. This requires shimming the backer board out from the studs so the wall is plumb. There should be a 1/4" gap between the tub ledge and the backer board.

bobobobo

Guest

Where do you put cement board in a bathroom?

Cement backer board is mainly used as a sub-surface for tiling. Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete.

John Coleman

Guest

Does cement board need to be waterproofed?

Concrete backer-board, once commonly referred to in the field by the brand name Wonderboard(r), is a cement product designed as a sheathing material for walls and floors. ... Most concrete backer-boards on the market today are not water-resistant, but all are waterproof.

Vitim.us

Guest

What do you cut cement board with?

The simplest way to cut cement backer board is to score the surface and snap the sheet along the scored line, similar to the way you'd cut drywall. In fact, you can use a drywall utility knife to score backer board, but a better option is a carbide-tipped scoring tool.

Teifion

Guest

Is it OK for cement board to get wet?

Most brands of concrete backer-board consist of a fibrous reinforcement cement composition molded into sheets. It is extremely hard and waterproof, meaning it will not deteriorate over time when exposed to water, making it ideal for use in high-traffic areas that are susceptible to the adverse effects of moisture.

Kurt Peek

Guest

Is it OK to walk on cement board?

You need to fasten the backer-board before the mortar sets up underneath, so walking on it while it's wet isn't a problem.

start your screws in the center and work outwards, working once sheet at a time..

maytham-ɯɐɥʇʎɐɯ

Guest

What is better cement board or backer board?

Cement board is the most common and widely-known backer board. ... On the downside, the cement boards are heavy, somewhat difficult to cut and can leave abrasive sandy crumbs that can damage tubs and shower bases if you're not careful. Cement board is a good, reliable backer board that works well on both floors and walls.

turivishal

Guest

What is the best cement backer board?

Foam boards are lightweight, easy to cut, and a completely waterproof. Pictured: Wedi Board tile backer board.Schluter approves Kerdi over drywall.Hardibacker is the best known fiber cement board.Cement board has improved over the years and is easier to work with.Dec 29, 2015

Bennett Dams

Guest

What is the best cement board for shower walls?

Styrofoam backer board is extremely lightweight, and it's strong and waterproof. It's also easier to cut than other backer boards, and it's dust-free. It's ideal for wet areas like the shower walls or floor.

itronic1990

Guest

Is cement board good for showers?

Whenever installing tile in any area of your house, you need a special substrate, or base layer. In showers, the standard substrate is tile backer, also called cement board or cement backer board. Ceramic and porcelain tile, more than almost any other surface material, needs a stable, flat, flex-free substrate.