Is cement board fire resistant?

Yes, Fiber Cement board is fire resistant and pass relevant fireproof testing.Click to see full answer. Beside this, are cement boards fireproof?Yes, HardieBacker® 1/4″ Cement Board is deemed noncombustible when tested to ASTM E 136 and can be used in conjunction with other noncombustible materials around a fireplace. This does not mean that clearances to combustible building materials can be reduced by using HardieBacker 1/4″.Also Know, is tile backer board fire resistant? HardieBacker® cement board is a unique, cement based water resistant tile backerboard that can be used on walls, floors and worktops. The products meet the European standard for fibre cement – EN 12467 and its reaction to fire, in accordance with EN 13501-1, is A1,S1-d0. Additionally, is durock fire resistant? A Durock panel with a thickness of 1/2 or 5/8 inch can provide two hours of fire protection when installed correctly and in conjunction with all fireproofing construction materials.Does cement board need to be waterproofed?“A waterproof membrane or vapor retarder membrane must be specified to prevent moisture intrusion and protect adjacent building materials.” ~B412 Bathtub or shower with prefabricated receptor. Cement board or Fiber-cement board. Consult local building code for moisture barrier requirements.”