The GREEN PAN slab is designed to combine the advantages ofEPS (sintered expanded polystyrene) with the structural and mechanical capabilities of precast concrete truss joists. The innovative system involves the use of an EPS formwork into which the trellis joists are inserted, which, once assembled, create a solid, lightweight structure with high thermal efficiency. The GREEN PAN slab offers a complete and innovative solution that integrates the best characteristics of the best performing materials, optimizing construction timelines, improving energy efficiency, and ensuring strength and versatility. Its ability to combine advanced technologies into a single, versatile, high-performance product makes it an ideal choice for the future of sustainable and efficient construction.