12.5mm Marmox Multiboard Waterproofing Board ( Pack/6 )
Ideal for many applications. In addition to being a lightweight tile backer board option, it is used for waterproofing, dry-lining and to provide thermal insulation.
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12.5mm Marmox Multiboard waterproofing Board
12.5mm Marmox Multiboard waterproofing Board is ideal for many applications. In addition to being a lightweight tile backer board option, it is used for waterproofing, dry-lining and to provide thermal insulation.
As a tile and shower backer board, it provides an effective decoupling membrane to prevent tiles and grout from cracking due to horizontal movement in the floor. The unique patented surface of Marmox Multiboard allows heavier tiles to be safely and securely fixed to walls. Being completely impermeable to water, it is doubly useful in areas prone to moisture, making it a good option for anyone looking for kitchen or bathroom tile board.
Pack Area: 4.50m2
Pack Quantity: 6
Pack Weight/m2: 18kg
Thermal Conductivity: 0.034W/mK
Thermal Resistance: 0.33m2K/W
Compressive Strength: 450kPa
Fire Behaviour: Euroclass E
Water Vapour Diffusion Resistivity factor(µ): 110 – 225
12.5mm Marmox Multiboard waterproofing Board can be used to insulate and waterproof walls, floors and ceilings and noticeable benefits will be gained by using any thicknesses of 10mm and above. The thinner 4mm and 6mm boards are mainly designed as waterproof tile backer board options, but these will also provide some thermal insulation. Even the thinnest boards will be useful when used with underfloor heating wire to reduce your heating costs.
Marmox Multiboard is not just suitable as a tile backer board or insulation board beneath plaster within a building. Because Marmox Multiboard is certified for external use, it can be used as an external tile backer board and can also be used outside beneath a coating of render.
Floor and Wall Application
On floors and on solid walls, 12.5mm Marmox Multiboard waterproofing Board is fixed as if it were a large tile – with tile adhesive. It is advisable to avoid voids between the Marmox board and the wall so a continuous bed of tile adhesive (applied with a notched trowel in straight lines, not swirls) is recommended, certainly when the wall is flat enough. For less flat wall, dotting and dabbing (with tile adhesive not plasterboard adhesive) reinforced with a mechanical fixing is recommended and the boards can also be put directly onto a metal or timber frame.
Under Tile Heating Systems
following instructions should be added.
• Cover the joints between boards with reinforcing tape (scrim tape.) Leave a 5mm gap around the edge and fill with Marmox Multibond.
• Fix the electric under tile heating mat/cables directly onto the Marmox board.
• Pour a self-levelling compound directly onto the Marmox boards (some self-levelling compound suppliers recommend that the boards are primed – this is not usually essential with a Marmox board but their instructions should be followed to validate their guarantees).
• Cover with just enough material to conceal the heating elements.
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