Light weight :10~14KG/M2, install easily and flexibility , don't need large lifting appliance,short construction period, low comprehensive cost.
High bearing capacity: high strength ,big stiffness ,can be used as both carrying structure and building envelopeNice warm keeping and insulation: average heat conductivity is 0.023w/m.k
Good fireproof performance:: test via national fireproof construction material quality supervision and inspection center, the various bid to GB8624B1 level.
the length of the sandwich board according to design requirements and transportation installation conditions determined. For different roof load and Lin distance can choose different sandwich board thickness.