Multiboard

Multiboard

Eco Friendly

Energy Efficient

Waterproof

Easy to Install

If you’re looking for innovative ways to enhance the performance of a building, Marmox has the answers. Marmox insulation boards are thin sheet boards designed to insulate the floor surface of new or existing buildings, saving up to 50% of the heat lost with conventional underfloor heating. This will significantly improve heat up time and greatly reduce running costs. When used over the wooden floor, Marmox also acts as a tile backer and will not absorb moisture when used in bathrooms or wet areas.

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This insulated tile backer board is made of extruded polystyrene, reinforced and covered on both sides with a fibreglass mesh embedded into a thin cement polymer mortar. The individual board is 1250mm long X 600mm wide with the optional thickness of 6mm or 10mm. It is installed using a flexible tile adhesive in a similar manner to a large tile.

  • Excellent heat insulation
  • Completely water resistant
  • High compressive strength
  • Excellent acoustic properties
  • Lightweight and easy to work with/install into new and existing building projects.
  • Will not rot or break down
  • Environmentally friendly
  • Energy saving/energy efficient
  • Retains its R and U value even in moist conditions
  • Acts as a thermal barrier and significantly reduces heat loss to the substrate
  • Transforms undertile heating into a very responsive and efficient system
  • Can replace tile and slate underlay

*Not recommended for vinyl

Thickness* (mm)Width (mm)Length (mm)Weight (kg/board)Density (kg/m)Thickness of the foam (mm)R Value (m.K/W)Thermal transmittance (W/m²x K) 100° ambient temp differenceNumber of insulation boards per box
660012502.04450.0050.163.198 (6m²)
1060012502.22900.0090.282.336 (4.5m²)
2060012502.51700.0190.591.405 (3.75m²)

*Insulation boards of thickness 30mm and 50mm are also available but have longer lead times.

Technical properties of the foam component

Density36kg/m³
Thermal Conductivity0.027 watt/mK
Thermal Conductivity(5 years) 0.032 watt/mK
Compressive Strength3.0 kg/cm² (300kN/m²)
Water Absorption (Immersion)0.02% by vol
Water Absorption (Capillary)Nil
Coefficient of Linear Expansion30 x 10.6
FlammabilityB1 Class ‘0’

Fix Marmox to concrete or wooden floors with the appropriate flexible tile adhesive (Classification C2). Simply lay your heating element on top of the Marmox boards and then tile directly over again using a flexible tile adhesive. Quick and easy to install, Marmox boards are a perfect solution for insulating and water- proofing in one operation.

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