12.5mm Marmox Multiboard Waterproof Insulation Board - 2400mm x 1200mm - 40nos (pallet)
12.5mm Marmox Multiboard Waterproof Insulation Board - 2400mm x 1200mm - 40nos (pallet)
Price: £1,465.56 (£1,758.67 inc VAT)
Price per m2: £12.72/m2 (£15.27 inc VAT)
- Product Code: A1-6576
- Delivery Time: 2 - 3 working days
- Brand: Marmox (Tech. support: 01634835290)
- Model: 2400mm x 1200mm - 115.20m2
- Weight: 426.24kg
Our ratings on 05-01-2026:
4.8 out of 5
12.5mm Marmox Multiboard Waterproof Insulation Board - 2400mm x 1200mm - 40nos (pallet)
Length: 2400mm
Width: 1200mm
Thickness: 12.5mm
Pack Quantity: 40
Board Coverage: 2.88m2
Pack Coverage: 115.2m2
Density: 298.4kg/m3
Weight/m2: 3.7kg
Weight: 426.24kg
Thermal Conductivity: 0.034W/mK
R-Value: 0.37m2K/W
Compressive Strength: 450kPa
12.5mm Marmox Multiboard Waterproof Insulation Board is a highly versatile, BBA-certified construction board designed for a multitude of applications, combining superior water resistance, thermal insulation, and structural strength. Manufactured from XPS (extruded polystyrene) foam, which is then reinforced with a polymer cement mortar coating and fibreglass mesh for stability and strength. The XPS core provides effective thermal insulation with a conductivity of 0.034 W/mK. Boards 10mm and above are excellent for insulating walls, floors, and ceilings to reduce heat transfer and improve energy efficiency. Thinner boards (4mm and 6mm) still offer thermal benefits, especially when used with underfloor heating systems to minimise running costs.
The Multiboard is completely impermeable to water, making it an ideal choice for use in moisture-prone areas like kitchens, bathrooms, wetrooms, and even swimming pools. It serves as a reliable waterproof tile backer board. The unique, patented surface is robust, providing an effective decoupling membrane to prevent tiles and grout from cracking due to horizontal movement in the subfloor. It allows for the secure fixing of heavy tiles to walls. The boards are lightweight and easy to cut with minimal dust. They can be tiled, plastered, or rendered, and are certified for both internal and external use, including exterior cladding.
CHARACTERISTICS
- Combines water resistance, thermal insulation, and structural strength.
- Made from an XPS (Extruded Polystyrene) foam core, coated with polymer cement mortar and reinforced with fibreglass mesh.
- Highly effective thermal insulation with a conductivity (λ) of 0.034 W/mK.
- Completely impermeable to water, making it ideal for wet areas like bathrooms, kitchens, and wetrooms.
- Acts as an effective decoupling membrane to prevent tiles and grout from cracking due to substrate movement.
- High compressive strength of 400 kPa.
- Can be tiled, plastered, or rendered, both for interior and exterior applications.
- Lightweight and easy to cut with minimal dust.
APPLICATION
- Suitable for insulating walls, floors, and ceilings; use with underfloor heating systems; constructing partition walls; and external cladding.
INSTALLATION
CERITIFICATION
- Conformity with relevant EU standards, specifically:
- EN 13164: Relevant to its use as a thermal insulation product.
- EN 13501 (Fire Performance): The untiled boards are generally classified as Euroclass E./li>
- Marmox's manufacturing process is associated with ISO 9001 standards for quality management.
- BBA Certificate: 09/4687
Marmox_Multiboard_Product_and_Installation_Guide.pdf
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