HardieBacker 12mm Key Features
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HardieBacker® 12mm is recommended for wall application for thickness transition with other products
Ensure framing is structurally sound and it complies with local building regulations. The maximum recommended stud centres are 400mm and ensure that all corners are adequately blocked with suitable timber. All existing old dry lining/platerboard should be removed as it has potential to fail further.
2. Determine layout of HardieBacker® - the boards may be installed vertically or horizontally.
All vertical joints should be made on the centre of the studs, score-and-snap the HardieBacker boards to the required sizes and make necessary cut-outs.
3. Install HardieBacker® 12mm to framing and verify if there are any applicable building regulations regarding vapour barrier requirements. Use HardieBacker® screws or 30mm galvanised roofing nails when using timber studs.
Install boards 6mm above the floor, bath, and shower tray. These floor and wall joints should be filled with a 6mm bead of high quality wet area sealant. Keep fixings 15mm from board edges and 50mm in from sheet corners. As always make sure the heads of fixings flush with the surface, without overdriving.
4. Prior to setting the tiles, embed 50mm alkaline resistant Fibatape across joints and feather tile adhesive to leave a 150mm wide joint