The system consists of large styrofoam blocks incorporating lightweight steel beam formers. The lightweight construction (3,84kg/m) enables easy manual placement and thus the individual units can be placed onto the supporting walls without a crane.
The blocks, when placed as per specification form a series of channels. These are the moulds for cast in situ beams. The rebar is easily inserted into these channels serving together with the concrete to act as load bearing beams. Spans up to 13m are possible.