Marmox Multiboard (Internal)
Verified by manufacturer 1 month ago
BBA Agrément Certificate
Certificate type
EPD
Certificate type
EPD
Certificate type
Tile backer board for internal use.
Application
Suitable for use to insulate and waterproof internal walls, floors and ceilings. Thicker units can be used to construct shelving units and bathroom furniture.
Description
Waterproof, thermally insulating tile backer board for internal use providing an effective decoupling layer between the tiled surface and the substructure. This helps to prevent tiles and grout from cracking due to horizontal movement in the floor and allows heavy weights to be safely and securely fixed to walls.
An external board is available, specified separately.
Features and benefits:
- Lightweight.
- Impermeable to water and acts as a moisture barrier; therefore, can be used in areas prone to moisture, such as kitchens and bathrooms.
- Thermal insulation is unaffected by various temperatures (including freezing).
- The cementitious surface is resistant to heat and the chemicals in the sheathing around electric underfloor heating elements, making it safe to use with these types of systems.
- Can easily be cut in straight lines.
- Provides enhanced tile adhesion.
- Can be tiled over or plaster finished; therefore, acting as an alternative to laminated thermal plasterboard.
- Load bearing capacity exceeds 100 kg/m² on walls, and 40 Tonnes/m² on floors.
- Boards can be aligned horizontally or vertically.
- Does not contain any hazardous substances.
- Manufactured in accordance with ISO 9001 Quality Management Systems and BS EN 5385-2, and CE marked to EN 13164.
Boards should be stored flat and should be covered with scrim/ reinforcing tape. For fitting instructions onto different types of substrate, consult manufacturer's literature.
General information
Material | Polystyrene |
Shape | Rectangle |
Warranty description | Lifetime |
Uniclass | |
CAWS | M40/27 Intermediate substrate M40/470 Intermediate substrate |
Product range |
Specification data - Extruded polystyrene (XPS) boards
Standard | To BS EN 13164. |
Third-party certification | BBA Certificate: 09/4687. |
Fire performance | Euroclass E. |
Compressive strength (minimum) at 10% compression | >400 kPa. |
Thermal conductivity (maximum) | 0.034 W/m·K |
Water vapour permeability | To EN 12086, 3.2 m. |
Thickness | 4 mm. Guidance for specification option: Thermal resistance (R-Value): 0.11 m²K/W. Board weight: 2.3 kg. 6 mm. Guidance for specification option: Thermal resistance (R-Value): 0.17 m²K/W. Board weight: 2.4 kg. 10 mm. Guidance for specification option: Thermal resistance (R-Value): 0.28 m²K/W. Board weight: 2.7 kg. 12.5 mm. Guidance for specification option: Thermal resistance (R-Value): 0.35 m²K/W. Board weight: 2.8 kg. 20 mm. Guidance for specification option: Thermal resistance (R-Value): 0.56 m²K/W. Board weight: 3.1 kg. 30 mm. Guidance for specification option: Thermal resistance (R-Value): 0.83 m²K/W. Board weight: 3.4 kg. 40 mm. Guidance for specification option: Thermal resistance (R-Value): 1.11 m²K/W. Board weight: 4 kg. 50 mm. Guidance for specification option: Thermal resistance (R-Value): 1.39 m²K/W. Board weight: 4.2 kg. 60 mm. Guidance for specification option: Thermal resistance (R-Value): 1.67 m²K/W. Board weight: 4.5 kg. |
Face size (length x width) | 1250 mm (±5 mm) x 600 mm (±2 mm). 2500 mm (±5 mm) x 600 mm (±2 mm). |
Product Reference | IF1-4-60 Guidance for specification option: Internal floors. For concrete floors. To be fixed with adhesive. IF2-4-60 Guidance for specification option: Internal floors. For plywood sheet flooring. To be fixed with adhesive or mechanically. IF3-4-60 Guidance for specification option: Internal floors. For chipboard/ oriented strand board (OSB) flooring panels. To be fixed with adhesive or mechanically. IF4-10-60 Guidance for specification option: Internal floors. For traditional floorboards. To be fixed with adhesive. IF5-6-60 Guidance for specification option: Internal floors. For raised access flooring. To be fixed with adhesive. |
Density (to DIN 53420) | 36 kg/m³. |
Water absorption (two day immersion, to EN 12087) | <1% by volume. |
Water absorption (capillary, to DIN 53428) | 0. |
Coefficient of linear expansion (to ASTM E-831) | 0.07 mm/mK. |
Water vapour diffusion factor (to EN 12086) | 110–225. |
Ozone depleting potential (ODP) | 0. |
Global warming potential (GWP) | 0.29. |
Impact sound reduction (to BS EN 140-8) | 21 dB. |
Maximum tile loading weight | >100 kg/m² (dependent on adhesive and wall type). |
Flexural strength (to ASTM C203) | >200 kPa. |
Coefficient of linear expansion (to ASTM D-696) | 30 x 10^-6 K^-1. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Egypt |
Country of product manufacture | Egypt |
Material | Polystyrene |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 5 % |
Product certifications
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 IFC | - | 1 |
 Revit | - | 1 |
Product certifications
BBA Agrément Certificate
BBA certificate for Marmox Boards
EPD
Environmental Product Declaration - Marmox Board
EPD
EPD - Marmox Multiboard
Literature
UK version (UKCA) Declaration of Performance
CPD materials
Internal and External Boards for Waterproof and Crack-free Tiling
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