Underlayment For Tile Over Concrete

Tape over holes and cracks in the wood subfloor or slab before pouring on the self leveling tile underlayment to keep it from seeping through and leaving indentations.

Underlayment for tile over concrete.

Tile underlayment must provide solid support so the tile and grout won t crack when walked on. Installing tile directly on concrete. Cement based backer board. The following backer boards are commonly used for tile flooring in wet or dry areas over wood subfloors.

Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material. 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. Most tile installation experts consider that underlayment is like an insurance policy. The most popular underlay for this purpose is known by its brand name.

If you re installing tile over an existing concrete pad or on a traditional mortar bed cement board would be redundant. Now largely regarded as the very best underlayment for ceramic tile in any application floors walls and countertops cement based backer board goes by many names. The impressive variety of tile styles shapes and colors allows you to customize your design. I m putting ceramic tile flooring in my kitchen and live on a 10 year old ground level concrete slab.

Do i need to put any type of underlayment or vapor barrier underneath it. However you still need an underlayment to isolate the tiles from the concrete subfloor and prevent cracks from telescoping through. Made of lightweight polyethylene the membrane is only 1 8 thick and can be cut easily with a. Underlayment in a tile project can mean the difference between a project that lasts for years and one you have to redo because an unexpected crack develops in your concrete slab.

It is generically called cement board or backer board or it can also be referred to by one of the common brand names such as densshield hardiebacker and wonderboard. A waterproof underlayment membrane like ditra from schluter systems can be substituted for backer board. Ceramic and porcelain tile are so frequently installed at or above grade level on a cement board underlayment or directly on plywood that it almost seems novel to install tile directly on concrete.