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Paste an ultra-thin tile, repaint a floor tile, phonically isolate a tile, ten-year warranty... Here are 8 questions about the tiles often asked:

8 tips for successful tiling

Is it possible to stick ultra-thin tiles on an original tile?

This tile, often called "Slim tille" in the trade, deserves its name because it is only 4 mm thick against 8 to 13 mm for a classic tile.
It is made of porcelain stoneware that is highly resistant to impact, abrasion and wear. But it can not be as solid as a thicker tile and may be a little fragile in a kitchen, where the risk of falling heavy objects is important.
The substrate must be clean, dry and perfectly flat and the installation must be done with great care.

To cover the tile worktop of the kitchen with smooth cement, how thick is it? How to proceed?

Smoothed cement, or waxed concrete, is actually a surface coating (5 mm thick) normally intended to coat the floors to give them the appearance of a very smooth colored concrete.
It is possible to transpose this technique to a tiled kitchen plan, but the joints between the tiles must not be too hollow (they may then reappear on the surface).
It is necessary to degrease the support, if necessary to depolish it if the enamel is very brilliant, then to apply a fixer.
It is possible to fix a wooden stick 5 mm thick on the lighter by gluing or nailing: it will retain the "concrete" liquid that is spread, smoothing with a trowel.
After drying, a specific wax will shine the surface and protect it.

Can we isolate a tile floor acoustically by being a tenant?

For better sound insulation while improving the aesthetics of the floor, a floating floor (or laminate) seems the best solution.
Being a tenant, it is not possible to change the structure of the soil without the agreement of the owner: a parquet or a laminate coating is the ideal solution since they are removable.
Avoid soft plastic coatings or even carpet, as the joints between tiles always reappear when they are printed in the coating.

Can we put a new tile on an old one? Should we depolish the old coating?

If your tiles adhere well to the ground it is possible to cover it with a new one.

Ideally, it is necessary to depolish the old one with a sander and a suitable abrasive or, more often, to apply a primer.
Some glues avoid this step.

The tiling of our house built in 2008 is cracking. Is it guaranteed by the decennial?

The ten-year warranty only applies to sealed tiles and not to glued tiles. So it all depends on how the tiles were laid.


If it has been sealed, you must use the damage-work insurance (in the hope that you have subscribed to it) or directly the decennial insurance of the company (in the absence of a damage-work guarantee). If the tiles have been glued, it is not normal, however, that it splits after seven years. You can turn against the company as a defect, which you must demonstrate by an expertise.

The tiling in the dining room is already starting to come off two months after being laid. Is the anhydrite screed there for something?

Anhydrite screeds (based on calcium sulphate) are much more sensitive to rising damp than conventional cement-based screeds. First, they must be completely dry before considering installing the tiles (1% humidity maximum). The screed must then be sanded to remove laitance. Finally, it is necessary to use a special glue for this type of screed, and preferably to apply a primer. If these conditions are not met or if rising damp occurs, the tiles will come off invariably.

Can we repaint a floor tile?

We want to repaint the tiled floor of our kitchen. We are told that it will never hold. What do you think?


Any tiling, whether on the wall or floor, may be covered by a resin or paint (for concrete floor), provided that its surface is in good condition, without excessive cracks, or visible holes. It must be perfectly cleaned and especially degreased. The result will be satisfactory, but the behavior depends on the use of the part concerned. The abrasion and especially the stripes appear all the more quickly as the traffic on the ground is important and likely to scratch the coating. This is likely to be the case in a kitchen, intensive use room. At least every two to three years is needed for a painting, a little more spaced for a resin.

Is an electric tile cutter more efficient than a tile?

The tile is suitable for tiles of medium thickness and hardness, but in a limited size (usually 30 x 30 cm). The tile cutter does not have this limit. It also allows for skewed cuts on edge for the miter assembly of plinth tiles.


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