Remove any oil or grease stains with a degreaser.
Tile on concrete slab detail.
Installing tile directly on concrete.
Water must not pool on the tiles.
Mix up a bucket of tsp tri sodium phosphate solution.
Consensus guidelines for the installation of concrete and clay roof tiles.
If the concrete has a smooth troweled surface rent a pressure washer with at least 4 000 psi to clean the slab and roughen its surface.
Expansion joint diagram ej s at tile perimeter and changes of plane october 17.
Flexible flashing drip edge termination bar drainage mat.
To prepare an existing slab scrub it clean with a stiff broom and water.
It mitigates extreme moisture conditions.
Scrub the floor with a brush and tsp and allow it to dry thoroughly.
Before you begin to lay the tile over your concrete slab make sure the concrete is properly prepared.
Slab curl failed tile over curled concrete november 4 2015.
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Small cracks caused by shrinkage usually do not present a problem.
But larger cracks especially those that are higher on one side than the other may telegraph through the tile and cause it to crack.
As long as the concrete slab is clean flat and free of active cracks you can lay title directly on the concrete floor using thin set adhesive.
Tsp is a high strength cleaner which is useful for removing dirt grease and oil from your existing surface.
There are epoxy coating systems for applying a vapor retardant over the concrete slab surface before you tile over it.
With ceramic tile you might be able to get away with up to 90 depending on the tile and installation products you are using.
The concrete should be properly cured be level to 1 4 inch in 10 feet and have a steel trowel or fine broom finish.
Tiles can be applied directly to a clean smooth concrete slab with a latex portland cement mortar.
The consensus document process included meetings over a period of eighteen 18 years made up of roofing contractors.
Ideally you want a rh of about 75 to 80.
Yet this application does make sense since concrete is heavy solid and is typically thought of as an unbending uncompromising material.
So the slab s surface has to be made flat photo 1.
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.
Recently the national tile roofing manufacturers association ntrma changed its name to tile roofing institute.
Slab curl successful tile over curled concrete.
