Backer board this is the industry standard most preferred by construction pros when installing ceramic or porcelain.

Tile membrane or backer board. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water. A waterproof underlayment membrane like ditra from schluter systems can be substituted for backer board. Uncoupling membrane cementboard has replaced a manually applied mortar bed to emerge as the standard underlayment for a tile floor. First felt paper is stapled to the floor and covered with.

This is the traditional tile backer. Thick 3 x 5 ft. Trowel able and pourable underlayment a number of trowel able and pourable tile underlayment options are available. In wet areas or in areas where movement is a concern you also should consider the use of membranes meeting ansi a118 10 which at times may be recommended or even required to be applied to the backer board before installing the ceramic tile.

Backer board is a thin layer of concrete that has fiberglass mesh on its sides and is used under the tile to provide a firm and even surface for the tile to adhere to. Cement board cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas. One type of tile backer board is made with a water resistant facing on both sides of the board. Alternatively instead of backer board you can use two layers of plywood topped with a waterproof uncoupling membrane which is a lightweight plastic underlayment that allows independent movement between the tile and the plywood to prevent cracks in the tiles and grout.

The facing serves as an integrated waterproofing membrane so you don t need to install a separate layer of plastic behind the tile backer or a sheet membrane over the backer. The membrane selection guide page 21 tcna handbook is an excellent resource. All shower tub areas should have concrete board i prefer hardiboard. Membrane faced board only.

Pros and cons of various tile backers dry pack mortar. First kerdi can be installed on drywall or cement board. When installing a tile floor a layer of cement backer board is usually put down over a plywood subfloor to provide a firm stable surface. In many ways however an uncoupling membrane such as schluter ditra is an even better backing material for reasons other than the fact that it doesn t raise the height of the floor as much as cementboard.

The back side of the drywall fails and it is just as bad or worse than if it had an issue on the tile side. Georgia pacific s densshield is one such product. However if installed on drywall it is only protecting one side. If you are laying tile on floors that are wavy or out of level self leveling underlayment.

Backer board is usually a simpler way to go than plywood.

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