FLOORS FOR REINFORCED CONCRETE & STEEL FRAME E-FC-2 - In-situ concrete slab and timber floating floor E-FC-10 - in-situ concrete slab with Thermal Economics IsoRubber top bonded resilient floor covering E-FS-1 - Steel-concrete composite with timber floating floor E-FS-2 - UltraBEAM metal joists and timber floating floor CLICK HERE FOR Floor and Wall Combinations and Code for Sustainable Homes and EcoHomes credits SIGN IN / SIGN UP To download online Handbook or buy a hardcopy Handbook