Concrete slabs poured directly onto prepared ground are extremely common throughout the housing industry. The slab is formed up with timber form work either removable or permanent. Depending on whether the concrete is to be exposed or covered with carpet or a floating floor the concrete will be of a different grade. Due to the new basix requirements most concrete slabs must be insulated around the edge with some type of polystyrene insulation fabric. Concrete slabs in the right areas of the house can greatly increase the thermal performance of your home.
Suspended slabs are poured into form work which is supported on a temporary frame, once the concrete has set, the form work and frame is removed to expose a concrete slab suspended on the edges of a wall. Often suspended slabs are cantilevered out as balconies in apartment blocks. A suspended slab must be engineered carefully and constructed to the exact specifications as the reinforcement must be precisely placed in order for the slab to achieve its designed purpose.