In the Infloor system, pipes with a round diameter of approx. 7-8 cm are poured into the concrete ceiling. This has the advantage that the pipes do not have to be warped in the floor structure and have better soundproofing properties due to the mass of the concrete ceiling; however, from a static point of view, this weakens the ceiling component, which must be compensated for with a higher ceiling height. If pipes are accidentally blocked or pressed off during construction, there is practically no repair option.
In the on-floor system, the cables are laid in the floor structure as flat ducts with an oval pipe cross-section or as round pipes and thus have no static effects on the building except for the penetrations through the ceiling. Crossing points with other pipes must be taken into account in order not to increase the entire floor structure due to individual crossings, but especially if the pipes emit sound emissions, such as sanitary downpipes and pipes from central vacuum cleaner systems.
Source: bauwion
