The sandwich panel is a newly developed and patented construction technology composite consisting of a metal framework, a double layer of fiber-cement boards at least 8 mm thick, and a wet poured mix of Polyurethane Foam Beads and Cement. All panels are modular in design and contain plumbing, electrical and gas lines. When fully cured, this composite is the only structural supporting panel in the world that does not need additional wood, steel or concrete members up to 4 stories in height. Because of this modularity, it’s easy to add active and non-active panels into walls, floors and ceilings in the home assembly process.