1, light, anti-sag, high humidity is not easy to deformation; 2, insulation, wet compartment, effective sound insulation; 1.Light ,prevent sinking,hardly out of shape in highly wet environment.2.Good effect on insulation against heat and sound.3.Easy installation,maintenance and construction.4.Long life .5.Clean,no dust6.Environment firendly.7.Good fireproof. asbestos-free cement board