QA

Question: What Goes Behind Tile 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.

What is the best backer board to use in a shower?

Cement board is a good, reliable backer board that works well on both floors and walls. Keep in mind that most tile setters err on the side of caution and brush a waterproofing membrane on top of cement board when it is in wet areas like showers or tub surrounds.

What kind of backing for a tile shower?

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.

Do you tile the shower wall or floor first?

The tile installation principle is that the tiled wall ‘hangs’ over the tiled floor. The best way to achieve this outcome is by first tiling the floor so that the wall tile will then seem to be ‘sitting’ on the bathroom floor.

Can you tile a wall from top to bottom?

Theoretically, tiles to be laid from top to bottom but practically it becomes impossible due to above reason. So, tiler feels easy to lay it from bottom. Tiles of full size on walls looks good, lay tiles of full size in multiple numbers, do not cut the top layer tile to meet the certain height.

How thick should Plywood be under tile?

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.

Do I need a vapor barrier behind cement board in shower?

You still need a vapor barrier with cement board, although in this case the barrier can go behind the board. Cement board is heavy enough and breathable enough to take the moisture without a problem. By having the vapor barrier behind the cement board you stop the moisture going further into the wall.

Can you use floor tile on shower walls?

As long as a tile, no matter the size, meets a set criteria it will be suitable for your floor. It will also be suitable for your wall. This is also why you do not want to do it the other way around. You can use ‘floor’ tile on a wall but you cannot use ‘wall’ tile on a floor – it won’t last.

Do you start in the middle when tiling?

It’s always advisable to start tiling your grid in the centre of the wall, as it’s easier to make sure your pattern is symmetrical. It also means any half-tiles you may need can go at the end of each row and will be of matching size.

Do you start tiling from the top or bottom?

Don’t start it at the floor. Instead, bring it up to about 3/4 of the height of your tiles. So, if you’re dealing with four-inch tiles, your batten board would start three inches off the floor. So, you’ve got that bottom row of tile.

What is the best tile to use in a shower?

Choose ceramic tile, porcelain tile, or quarry tile, which are all part of the ceramic tile family and are ideal for areas exposed to water. This sounds obvious — of course, you want your shower and bathroom to be waterproof.

What do you put behind cement board in shower?

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.

Can I tile directly on plywood?

While tile can be laid on plywood, do not install tile directly onto the plywood subfloor itself. Use intervening layers of two sheets of plywood.

Do you need to waterproof cement board in shower?

Contrary to popular thought, tile and grout are not waterproof, and some moisture will penetrate even if sealant is used. However, if you choose to use concrete backerboard, which is much stronger and more durable than gypsum board, a water vapor membrane must be placed underneath it or a sealant applied on top of it.

Where do you start when tiling a shower wall?

Start out level

  1. Start tile on a level board. Screw a straight board to the level line and stack tile on the board.
  2. Close-up of improper spacing.
  3. Don’t start on the edge of the tub or shower. Don’t start the first row of tile by resting it against the tub or shower.

How thick should cement board be for shower walls?

The minimum recommended thickness for the shower wall is 1/2″ because like some of the other boards, they become far too flexible at thicknesses below 1/2″. Foam shower tile backer boards are generally about 4x the cost of cement board.

What is the best waterproofing membrane for showers?

Best Waterproofing Membrane for Shower:

  • Laticrete Hydro Barrier.
  • CUSTOM BLDG PRODUCTS LQWAF1-2 Redgard Waterproofing.
  • USG DUROCK Brand Liquid Waterproofing Membrane.
  • Mapei Mapelastic AquaDefense.
  • Laticrete 9235 Waterproofing Membrane Roll.
  • Schluter Kerdi 108 Sq Ft Waterproofing Membrane.
  • RedGard Waterproofing and Crack Prevention Membrane.

Can I tile straight onto plasterboard in a shower?

Yes, it is possible to tile directly to our Gyproc moisture resistant (MR) grade boards without any pre-treatment.

Do I need to waterproof shower walls before tiling?

Contrary to popular belief, ceramic tile and grout, by themselves are not waterproof. Water can penetrate through cement-based grout and work its way through the substrate. To prevent water damage, you must install a waterproof membrane just below the tile bonding mortar as close to the tile as possible.

Should you put plastic behind shower walls?

They are required beneath your shower pan and behind your shower walls. Moisture barriers can be made of polyethylene or a membrane that is rolled directly onto the drywall. No matter what they are made of, without them, your shower is subject to moisture damage.

Can I use plastic sheeting as a vapor barrier?

If you are framing out a below-grade basement, however, do not use plastic as a vapor barrier. Concrete tends to wick moisture, and if you cover insulated cavities with plastic they can become wet and optimal for mold growth.