The floor panel is a sandwich panel used for floor and roof coverings, whose thickness varies according to the spans and the design loads.

This prefab panel, prefabricated in the factory, is generally completed on-site by placing concrete into the ribs and upper concrete casting: a sort of a disposable, insulating formwork, whose thickness of polystyrene (EPS) varies according to the requirements of insulation and structural resistance.

Alternatively, the reinforcement and casting can be done directly in the factory, as for the prefabricated concrete floors.

These insulated precast panels are used for:

• floors of structures completely made with panels

• floors of buildings made with prefabricated structures, onsite castings or made with metal structure

• floors of prefabricated modules