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Sorry to be the bearer of bad news here @throatgoat, but unfortunately, Hardie Groove VJ panelling is not suitable for wet areas. These areas are typically defined as within a shower recess and also behind basins and vanities, where regular water splash is expected.
I have double-checked this directly with James Hardie Technical to be certain, and they have confirmed that Hardie Groove is not approved for use in these locations, even if it is painted or waterproofed. Because of that, installing a cement sheet first and then fixing Hardie Groove over the top would not resolve the issue, as the finished surface itself is still not suitable for a wet area.
In this situation, you would need to use an appropriate splashback behind the sink, such as tiles or another compliant waterproof wall lining, to meet manufacturer requirements and avoid potential moisture-related problems down the track.
Please let me know if you have any questions.
Mitchell
Hi @throatgoat,
The Easycraft installation manual states: Wet area products cannot be installed in direct splash zones AS 3740 - 2021 should be reviewed to ensure compliance.
However, there is an allowance if the sink is more than 75mm from the panel: Vessels such as freestanding baths, sinks, basins must be a min of 75mm away from the wall for Easycraft panels to be installed behind them. If the vessel is within 75mm from the wall then Easycraft panels must be installed with a min 150mm clearance from the top of the vessel, this requirement includes fixed baths, underbench sinks.
Mitchell
