Multiboard (External)
Verified by manufacturer 6 months ago
ISO 9001 Quality Management
Certificate type
EPD
Certificate type
Tile backer board for external use.
Application
Suitable for use insulating, waterproofing and fixing ceramic and stone tiling and brick slips to external walls.
Description
Waterproof, thermally insulating tile backer board for external 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 internal board is available, specified separately.
Features and benefits:
- Lightweight.
- Dimensionally and structurally stable in all weather conditions.
- Resistant to freeze-thaw damage.
- Impermeable to water, and acts as a moisture barrier.
- Thermal insulation is unaffected by various temperatures.
- The cementitious surface is resistant to heat and chemicals.
- Can easily be cut in straight lines.
- Provides enhanced tile adhesion.
- Load bearing capacity exceeds 100 kg/m².
- 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 covered with scrim/ reinforcing tape. For fitting instructions onto different types of substrate, consult manufacturer's literature.
General information
Finish | Cement |
Material | High density extruded polystyrene (XPS) Polymer-modified cement |
Shape | Rectangle |
Length | 1250 mm 2400 mm |
Width | 600 mm 1200 mm |
Height | 20 mm 30 mm 40 mm 50 mm 60 mm |
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 product 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. |
Thickness | 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 | EW1-12-60 Guidance for specification option: External walls. For concrete block and brick substrates (flat). To be fixed with adhesive. EW2-12-60 Guidance for specification option: External walls. For aircrete block walls. To be fixed with adhesive or mechanically. EW3-12-60 Guidance for specification option: External walls. For rendered walls. To be fixed with adhesive or mechanically. EW5-12-60 Guidance for specification option: External walls. For intermediate plywood layers on timber/ metal frames. To be mechanically fixed. |
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. |
Water vapour permeability (to EN 12086) | 3.2 m. |
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 | High density extruded polystyrene (XPS) Polymer-modified cement |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 5 % |
Third party 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 |
Third party certifications
ISO 9001 Quality Management
Marmox ISO9001
EPD
Environmental Product Declaration - Marmox Board
Literature
Marmox Tile backer boards and Shower bases
DoP for Marmox Multiboard
EWI and IWI Specifications - Multiboard
Tile Backer Board Specifications