MATERIAL DATA SHEET

Cement-Bonded Wood Fibre Panel (10mm, 12mm, 18mm, 25mm, 40mm)

Cement-Bonded Board
composite › Timber-Based Composite › Cement-Bonded Board
compositetimber-based compositecement-bondedfire-resistantBAL-29non-combustibleacousticmoisture-resistantEuropean-import
ATLAS CODE
COM-TBC-CBB-001
Cement-Bonded Wood Fibre Panel (10mm, 12mm, 18mm, 25mm, 40mm)
Category composite
Material Family Timber-Based Composite
Regulatory Status A2-fl-s1
Density
1350 kg/m3
Carbon (A1-A5)
6-8 kg CO₂e/m² @ 12mm kgCO₂e
Fire Class
A2-fl-s1
Lifespan
50+ years yrs
Description

Cement-bonded wood fibre panels are mineralized wood particles bound with cement, producing dense, durable boards with high fire resistance and good moisture tolerance.

Primary Sectors
[Industrial]
Typical Uses
  • External cladding in bushfire zones (BAL-29)
  • Acoustic wall partitions
  • Wet area substrates
  • Industrial flooring
  • Ceiling systems
  • Facade panels
  • Structural sheathing
  • Modular construction
  • Impact-resistant partitions
Recycled Content Wood: 100% plantation timber
Renewable Content 20-30% (wood content)
Recyclability 100% (crushed for aggregate)
Embodied Carbon 6-8 kg CO₂e/m² @ 12mm kgCO₂e
Embodied Energy 4.5-5.5 MJ/kg MJ/kg
EPD Available No
Advantages
Non-combustible Group 1 fire ratingBAL-29 bushfire complianceExcellent moisture resistanceTermite and fungal resistanceHigh impact resistanceGood acoustic properties (31-37 dB)Dimensional stability100% recyclableNo formaldehyde emissionsCan be worked with standard woodworking tools
Cautions
Limited Australian availabilityHigher cost than standard fibre cement ($65-120/m²)Requires tungsten carbide cutting toolsCrystalline silica dust hazardHeavy weight (1250-1350 kg/m³)Limited thickness options in stockRequires sealing for external useNo local manufacturing supportLong lead times for custom sizes
CLAD MATERIALS ATLAS PAGE 1 OF 4
TECHNICAL DATA: PERFORMANCE PROPERTIES COM-TBC-CBB-001
Density (Dry) 1350 kg/m3
Specific Gravity 1.25-1.35
Porosity 28-32% %
Water Absorption 1.5 %
Hardness Shore D 75-85
Surface Roughness Ra 50-100 μm (unsanded) μm
UV Resistance Good (requires surface sealing)
Chemical Resistance Alkaline resistant
pH Tolerance pH 9-12
Compressive Strength 9 MPa
Tensile Strength 0.4-0.5 MPa MPa
Flexural Strength 9 MPa
Shear Strength 1.2-1.5 MPa MPa
Elastic Modulus 4500 MPa
Impact Resistance High (specific values not available) J/m
Bearing Capacity 9000 kPa kN/m²
Poisson's Ratio 0.15-0.20
Abrasion Resistance Good (Class AC4 equivalent)
Thermal Conductivity 0.20-0.26 W/m.K W/mK
Thermal Resistance R0.038-0.200 (varies by thickness) m²K/W
Specific Heat Capacity 1000-1300 J/kg.K J/kgK
Thermal Expansion 8-10 x 10⁻⁶/°C μm/m·K
Melting Point N/A (degrades, doesn't melt) °C
Ignition Temperature >400°C °C
Sound Transmission Class (STC) 31-37 dB (thickness dependent)
Noise Reduction Coeff. (NRC) 0.45-0.55 (perforated panels)
Optical
Light Transmittance 0% (opaque) %
Light Reflectance (LRV) 25-35% (grey finish) %

Cement-bonded particle boards were developed in Europe in the 1970s as a fire-resistant alternative to standard particleboard. The technology originated in Germany and Switzerland, with commercial production beginning in the 1970s. Australia first imported these materials in the 1990s for specialised applications. Viroc, established in Portugal, has become the primary supplier to the Australian market since 2010, distributed through Modinex and other specialist suppliers. Despite early CSIRO research into similar 'Scrimber' technology in 1976, Australia has not developed domestic manufacturing capability, relying entirely on European imports.

CLAD MATERIALS ATLAS PAGE 2 OF 4
SAFETY, ECOLOGY & INSTALLATION COM-TBC-CBB-001
Flame Spread Index 0 (AS 1530.3)
Smoke Developed Index 0-3 (AS 1530.3)
Combustibility Class A2-fl-s1
Ignition Temperature >400°C °C
Fire Resistance Rating Group 1 (AS 5637.1) hours
Toxicity of Combustion Low hazard
Embodied Carbon (A1-A3) 6-8 kg CO₂e/m² @ 12mm kgCO₂e/kg
Embodied Energy 4.5-5.5 MJ/kg MJ/kg
EPD Available No
Recycled Content 100%
Renewable Content 100%
LEED Points MR credits possible
VOC Emissions E0 class (<0.5 mg/L formaldehyde) g/L
Skill Level Intermediate - specialist cutting required
Crew Size 2-3 persons
Installation Time 15-20 m² per day hr/m²
Curing Time N/A - factory cured hours
Setting Time 48hr acclimatisation required min
Temperature Range 5-35°C installation °C
Humidity Range 40-70% RH ideal %
Required Tools
Tungsten carbide or diamond blade sawNon-impact drill with HSS bitsP2 respirator (mandatory)Dust extraction system
Certifications Required
White CardSilica awareness training
Weather Limitations
Avoid installation in rainProtect from moisture until sealed
CLAD MATERIALS ATLAS PAGE 3 OF 4
COMMERCIAL, LOGISTICS & REGULATORY COM-TBC-CBB-001
Material Cost $65-120 per m²
Installation Cost $45-65 per m²
Annual Maintenance $2-5 per m² (sealing every 5-7 years)
Lifecycle Cost (50yr) $150-200 per m² over 50 years
Market Availability Limited - import only
Lead Time 2-4 weeks standard, 4-8 weeks custom weeks
Design Life 50+ years years
Warranty Period 10-15 years manufacturer years
Maintenance Interval Annual inspection, 5-7 year resealing months
Service Temp Range -40°C to +80°C °C
Freeze/Thaw Resistance Passes EN freeze-thaw cycles
Dimensional Stability <0.1% moisture movement

DISCLAIMER: This specification document is generated from the CLAD Materials Atlas Database. Information is for general guidance only and does not constitute professional engineering advice. Values are typical and may vary by batch, manufacturer, and production run. Verify suitability for specific project applications independently.

ID: COM-TBC-CBB-001 Schema: v3.0
CLAD MATERIALS ATLAS PAGE 4 OF 4