Laying tiles on dry screed

Laying tiles on dry screed


Laying tiles on dry screed has many advantages and is basically not a problem - if you consider some peculiarities.

Dry screed as a substrate ensures, as the name implies, that the surface is dry. A possible insulation should have taken place under the screed. This is important for further processing and especially good for the tile adhesives used. Even with the usual dry screed elements, you can already be sure that you are dealing with a flat surface, so there is not much work to be done in this regard.

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The right materials

Be sure that you get tiles that can be processed in a thin-bed process. Be sure to use a flexible adhesive with plastic coating. These adhesives remain flexible even after curing. This is important because dry screed can swing. Just when you place the screed on a non-level surface and floating, it can cause movements in the material. A flexible adhesive prevents damage to the tiles. You should also check beforehand that your dry screed is treated with a sealant. Then you have to make sure that your tile adhesive can be handled with this seal.

Apply the flexible adhesive thinly to the screed and prepare it with a notched trowel for laying the tiles. Pay attention to the correct pressing of the tile in the glue. At least 80 percent of the bottom surface should come in contact with the adhesive to ensure a good grip.

Working with joints

For tiling, you should work with open joints. There are joint crosses for this, which help you to keep constant joint sizes. The joints are also grouted only when the flexible adhesive has really cured. Then please also use a plastic-coated grout, which guarantees the highest possible flexibility of the joint. This can be compensated for movements of the substrate and cracks in the tile can be avoided. For jointing, take a grout board and always grout the mortar diagonally to the tile direction.

When all the joints are filled, allow the mortar to dry slightly and then clean the tiles of mortar residue with a sponge. If you wait too long, you will need a special cleaner to clean the tiles.

What is tile laying in practice? *

  • Newly tiled kitchen with black, glossy tiles
  • Newly tiled kitchen in matt slate look
  • Newly tiled bathroom with floor and wall tiles

*) Sample works by MyHammer craftsmen before / after comparison

Video: How to lay floor screed, call 01204 521 151, installing floor screed, underfloor heating screeding|

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