MASTERBOARD^® can employed as over cladding on masonry or concrete walls to provide a smooth surface for decoration, avoiding the need to apply a plaster or cement render. MASTERBOARD^® is screwed to metal furring sections which in turn are themselves fixed to the substrate. MASTERBOARD^® can be supplied with bevelled or tapered edges to facilitate joint filling for a smooth surface finish.

For normal conditions, the MF sections are positioned at nominal 610mm centres, and fixed to the substrate using non combustible fixings at nominal 500mm centres. The MASTERBOARD^® is fixed to the MF sections using screws at nominal 300 centres. For use in high impact areas or aggressive environments, e.g. sports halls, it may be necessary to reduce the centres of the MF profiles. The cavity between the masonry and the MASTERBOARD^® can be filled with mineral wool to improve the acoustic and thermal insulation, or the cavity can be used to accommodate services.

MASTERBOARD^® can be used as a tile underlay for floors. MASTERBOARD^® is applied to ensure the floor has a flat and level surface prior to laying of floor tiles. The MASTERBOARD^® panels should be fixed with nails or screws around the perimeter of the board at 75mm centres. Nails or screws must be a minimum of 75mm from the corners of the boards and 20mm from the edge of the board.

Once the perimeter has been fixed, apply nails or screws in a grid 150mm x 150mm throughout the centre of the boards. For a panel 2440mm x 1220mm, this would provide a grid of 16 rows down the length of the board (starting 20mm in from each end) and 8 rows across the board. Tiles should be applied using adhesives, primers and application methods recommended by tile manufacturers as suitable for calcium silicate boards.

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