Dense cement-bonded wood fibre panels offering high fire resistance, dimensional stability, and good acoustic performance.
01 Physical
Density1350kg/m3
Specific gravity1.25-1.35
Porosity28-32%%
Water absorption1.5%
HardnessShore D 75-85
UV resistanceGood (requires surface sealing)
Chemical resistanceAlkaline resistant
pH tolerancepH 9-12
Surface roughnessRa 50-100 μm (unsanded)µm
02 Mechanical
Tensile strength0.4-0.5 MPaMPa
Compressive strength9MPa
Flexural strength9MPa
Shear strength1.2-1.5 MPaMPa
Poisson's ratio0.15-0.20
Impact resistanceHigh (specific values not available)
03 Thermal
Thermal conductivity0.20-0.26 W/m.KW/m·K
Specific heat1000-1300 J/kg.KJ/kg·K
Thermal expansion8-10 x 10⁻⁶/°C×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility classA2-fl-s1
Fire resistance levelGroup 1 (AS 5637.1)
Ignition temp>400°C°C
Flame spread index0 (AS 1530.3)
Smoke dev. index0-3 (AS 1530.3)
05 Sustainability & Health
Embodied carbon6-8 kg CO₂e/m² @ 12mm
Carbon footprint450-550 kg CO₂e/m³
Embodied energy4.5-5.5 MJ/kgMJ/kg
Recyclability100% (crushed for aggregate)%
Recycled contentWood: 100% plantation timber%
Renewable content20-30% (wood content)%
VOC emissionsE0 class (<0.5 mg/L formaldehyde)
Toxicity ratingLow (no hazardous emissions)
LEED contributionMR credits possible
06 Durability · Cost · Logistics
Expected lifespan50+ years
Maintenance intervalAnnual inspection, 5-7 year resealing
Warranty period10-15 years manufacturer
Material cost (range)$65-120 per m²
Material cost (per unit)$243-450 per sheet (3000x1250mm)
Lead time2-4 weeks standard, 4-8 weeks custom
Lifecycle cost$150-200 per m² over 50 years
Annual maintenance$2-5 per m² (sealing every 5-7 years)
Market availabilityLimited - import only
07 Assessment
Advantages
Non-combustible Group 1 fire rating
BAL-29 bushfire compliance
Excellent moisture resistance
Termite and fungal resistance
High impact resistance
Good acoustic properties (31-37 dB)
Dimensional stability
100% recyclable
No formaldehyde emissions
Can be worked with standard woodworking tools
Constraints
Limited Australian availability
Higher cost than standard fibre cement ($65-120/m²)
Requires tungsten carbide cutting tools
Crystalline silica dust hazard
Heavy weight (1250-1350 kg/m³)
Limited thickness options in stock
Requires sealing for external use
No local manufacturing support
Long lead times for custom sizes
08 Applications
A1External cladding in bushfire zones (BAL-29)
A2Acoustic wall partitions
A3Wet area substrates
A4Industrial flooring
A5Ceiling systems
A6Facade panels
A7Structural sheathing
A8Modular construction
A9Impact-resistant partitions
09 Sources & Standards
Sources pending — citations for this material are not yet recorded.
Verify all figures against manufacturer data and current standards
before specifying.
Currently living and working on the land of the Wurundjeri Woi Wurrung
People.
We acknowledge the Traditional Custodians of this land, whose
sovereignty was never ceded, and pay our respect to their enduring
connection to Country.