Schluter kerdi board is a multifunctional tile substrate and building panel which can also be used for creating bonded waterproofing assemblies with tile coverings.
Tile on foam board.
It is made with a high density waterproof extruded polystyrene core and a reinforced waterproof membrane on both sides to give triple protection from water and vapor intrusion.
Foam core tile backing board has two big advantages over other backer boards.
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Screws secure the cement board to the wall studs.
And second since it s foam the board is super easy to cut with just a utility knife.
First it s super lightweight compared with the rest.
4 6 out of 5 stars 195.
Foam board underlayment 3 gypsum based tilebacker 7.
In this highly convenient inexpensive and popular application a moisture barrier of 4 or 6 mil thick plastic is installed directly over the wall studs.
Tile is laid onto the cement board with thinset mortar or mastic.
50pc of anet white 20 x20 foam ceiling tiles covers about 135sqft.
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Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall.
I usually stick them down with ardex x7r or mapei keraquick lay the ufh slc with arditex na or mapei fibreplan then tile with x7r or keraquick subject to the type of tiles being fixed.
Then the cement board is installed on top of the plastic sheeting.
A 1 2 inch thick 3 x 5 foot sheet weighs just 7 1 2 pounds compared with 45 pounds for a similar size sheet of cement board.
To attach the insulation you can use screws with large washers a special adhesive made for adhering foam board insulation or for smaller pieces you can seal them in with caulk or spray foam.
Usg and jm seem to make rigid foam boards for insulation and backer board wedi uses dow for their foam.
Ship to store free.
Hydro ban board is a lightweight easy to handle and ready to tile wall board designed to be used in bonded tile or stone installations.