Answer: the more expensive liquid screed is more efficient and provides excellent flatness, but the heating of the floor takes longer.
When installing a heated floor, it is necessary to cover it with a screed. To do this, a distinction is made between conventional screed (with coating concrete) and liquid screed (with anhydrite). The first solution, based on cement, is the least expensive. It is suitable for both electric and water heated floors, and provides satisfactory performance for the heated floor. The second solution, based on calcium sulphate, is more expensive but more efficient: it coats the heating network well and ensures excellent flatness. It is industrially prepared, and particularly recommended for hydraulic underfloor heating. The heating of the floor can take place after 5 days with the installation of the conventional screed, a week with the liquid screed. You too, send us your brico question