Multiboard meets BS 5385 guidance on tiling substrates

Thanks to the continuing efforts of The Tiling Association (TTA), standards of training and workmanship across the industry have improved dramatically, while many specialist contractors and other building trades have made the switch to using high performance tilebacker boards, such as Marmox Multiboard, since BS 5385 Part 1 directed plywood was not a suitable substrate.

The deterioration in quality of plywood – especially the cheaper imported types – has resulted in the commoditised wood product no longer being regarded as a “stable and rigid background” for tiling operations. In fact it is likely to delaminate and even rot if its moisture content changes.

Multiboard, by contrast, is fully waterproof as well as offering a high thermal insulation value, with the polymer modified concrete covering to the XPS core offering an ideal surface for plastering or direct tiling.

Available in a range of thicknesses, Multiboards are both light to handle and easy to cut, while still being able to sustain substantial loadings if required, including as part of a floor build-up or supporting up to 100 kg/m² across a wall. They can be fixed using the special plugs available while, Marmox 360 adhesive will seal the joints in situations like wetrooms, pool areas and even exposed situations like balconies.

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