The light weight compound sandwich panel is a kind of light weight energy saving compound board,takingfiber reinforced calcium silicate board or cement calcium silicon board as surface panel,with cement, EPS,fly ash as fillers and compounded at one time.The product can replace construciton materials like red brick, clay solid brick, air brick, color-coated steel sandwich board, gypsum block; wire spatial grid structure perlite board,perlite porous board etc. It can be widelyapplied to various high and low buildings such as: bank,office building,hospital, school,hotel, shopping mall,amusement hall,portable dwellings,old house reconstruction,family house and workshop. [Details]