Although tile can be placed directly over a concrete slab products such as schluter s ditra are designed to separate or uncouple the tile from any potential movement in the substrate and protect the tile and grout from cracking.
Tile over concrete.
The redgard uncoupling mat covers small cracks in the concrete slab and eliminates the worry of installing over those expansion joints.
Laying floor tile over concrete is not a technically demanding job.
Before you begin to lay the tile over your concrete slab make sure the concrete is properly prepared.
Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material.
An advantage of putting outdoor tiles over concrete is that we will not have to waste the concrete by demolishing the existing surface.
Clearly the longer you can wait before tiling the less stress that will be applied to the tile by the concrete.
Often people want to cover a concrete patio or porch with tile and need to know how that differs from indoor tile installation.
Also should the concrete crack the crack can be treated with an anti fracture membrane before it is tiled.
Tile can contribute thermal mass to a passive solar house and to christa campbell it would make a more appealing finish floor than concrete.
For starters moisture and cracking are bigger concerns outside so you need to apply a waterproofing and crack isolating membrane to the slab before you begin.
Using an acid based cleaner or deep cleaner of your choice clean the concrete and allow it to dry thoroughly.
If curling occurs and it often does the concrete can be ground before it is tiled.
Installing tile directly on concrete.
Step 1 preparing the concrete.
Moreover the concrete serves as extra protection against water absorption and added strength to carry heavier weights that are dropped on or pressed against the tiles.
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.
Installing ceramic tiles over concrete can help to create a more inviting indoor or outdoor living space.