Installing insulation screed without mesh?

Standard insulation screed can be installed without a Staenis grid, but on top of that there must always be a sand-cement screed or floor screed.

If you install the standard insulation screed with the Staenis grid, you can place flatter insulation boards on top of it (+ screed floor) or screw OSB directly onto the grid.

Tileable insulation screed should always be installed with the Staenis grid. This creates a flat surface suitable for tiling and is reinforced to protect your tiles.

If you install your tileable insulation screed without the Staenis grid, the insulation screed will be more than 2 cm uneven, making tiling impossible and making it difficult to estimate the height in advance.

Also keep in mind that tileable insulation screed contains much more cement and you will therefore mix it with more water. As a result, the tileable insulation screed shrinks more and is more likely to bulge during drying. The squares of the Staenis grid absorb this, so that the height remains the same and you can always tile the floor afterwards.