EPS sandwich panel: 1.LIGH-WEIGHTED, 2.HEAT AND SOUND INSULATION, 3.HIGHLY WATERPROOF, 4.LONG SERVICE LIFE. EPS sandwich roof panel:Technical ... 11.8m3. Usage: It can be used as roof panel of workshop, factory, prefabricated home, storage, villa ... clay solid bricks, air bricks, color-coated steel sandwich boards, gypsum blocks, wire spatial grid structure perlite boards ...