The redgard uncoupling mat covers small cracks in the concrete slab and eliminates the worry of installing over those expansion joints.
Tile over concrete.
It can be physically strenuous and messy but it is a home improvement project that will allow you to cut labor costs by doing it yourself.
Clearly the longer you can wait before tiling the less stress that will be applied to the tile by the concrete.
Once finished a porcelain tile installation over concrete will last generations ensuring your investment is beyond a mere one to five year warranty that some floor finishes have.
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.
Laying floor tile over concrete is not a technically demanding job.
Also should the concrete crack the crack can be treated with an anti fracture membrane before it is tiled.
Installing ceramic tiles over concrete can help to create a more inviting indoor or outdoor living space.
Once you ve ascertained that the slab is dry and level as possible your best solution to lay tile over concrete with expansion joints is shown below and linked here.
Step 1 preparing the concrete.
If curling occurs and it often does the concrete can be ground before it is tiled.
Before you begin to lay the tile over your concrete slab make sure the concrete is properly prepared.
Often people want to cover a concrete patio or porch with tile and need to know how that differs from indoor tile installation.
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.
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.
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.
Using an acid based cleaner or deep cleaner of your choice clean the concrete and allow it to dry thoroughly.
Tile can contribute thermal mass to a passive solar house and to christa campbell it would make a more appealing finish floor than concrete.