Fire proof, water proof, aging-proof, shock proof, crack proof, sound insulation, save 15%~30% construction cost. ValueMgO Magnoboard®Cement BoardPlywoodGypsum WallboardGypsum SheathingO.S.BFlamespread00HighLow/15Low/10HighSmoke DevelopedNoneNoneHighLowLowHighWater ResistanceYesNoNoNoNoNoMold/Mildew ResistantYesYesNoNoNoNoTermite ResistantYesYesNoYesYesNoThermal Insulation R-value per inch1.20.81 ...