... ,waterproof,quakeproof. 3.Green Ma water proof high strength fiber cement board is mainly made from silicious material, calcium material and reforcing ... melting 25times,no damage stratification.2.Sizes:Fiber cement board :1220*2440*(5-30mm)ceiling board :595*595*(5-10mm)600*600*(5 ... products,please let us know. water proof high strength fiber cement board