James Hardie Hardiebacker 500 Cement Wall Board 12mm is a mould resistant board.

The 12mm Hardiebacker 500 is a cement wall board made from cement, sand, and selected Additives, which can be used as a base for tiles and stone and can not be affected by high levels of humidity.The mould resistant nature of the Mouldblock technology is due to the fact that it has no paper facing that could sustain mould growth.The board will not warp or rot when exposed to water, so it is a perfect substitution for plywood or plasterboard.

In areas with high levels of humidity, such as saunas, steam rooms, swimming pools or domestic boilers backing, 12mm Hardiebacker 500 cement wall backerboard can be used.

All edges should be blocked with timber and the dry lining removed.If you install the boards vertically, make sure that the vertical joints are on the stud centre.Cut the boards according to the instructions given.The screws or roofing nails should be used to fix the board.The boards should be installed at least 6mm from the floor, shower tray or bath.The fixing heads should be flush with the surface and 15mm from the board edges.Before applying the tiles, a 50mm Fibatape should be embedded across the joints.If a control layer is necessary, please refer to the regulations.

Make sure the wall is clean and dry when you install the boards on it.The back of the board should be pressed firmly onto the wall.The boards are fastened with 100mm screws from the bottom and top edges to the right and left ones.