The level of screed is determined by or depends on several factors:
- for heating systems with the used of heat-accumulating heating, the thickness of the screed over the cable can reach 7-20 cm;
- for direct-action comfort underfloor heating systems with the use of mats, the thickness of the layer over the cable can be equal to several centimetres; this allows you to quickly heat the floor to the desired level, and also excludes the possibility of a “temperature zebra” due to low rated power of the heater and small spacing between the cables on the mesh;
- for direct-action comfort underfloor heating systems with the use of cables, the thickness of the layers over the cable can reach from 4 cm to 10 cm, in which case the first warm up of the screed will take more time than when using mats. But the length of the heating cable itself will be smaller as well, due to the increase in rated power and the spacing between cables on the installation tape. The “temperature zebra” in this case is smoothed over by the thickness of the screed layer over the cable.