Atlas index
Panel · 10–40 mm
Timber-Based Composite — indicative fig. C·43

Dense cement-bonded wood fibre panels offering high fire resistance, dimensional stability, and good acoustic performance.

01 Physical

Density 1350kg/m3
Specific gravity 1.25-1.35
Porosity 28-32%%
Water absorption 1.5%
Hardness Shore D 75-85
UV resistance Good (requires surface sealing)
Chemical resistance Alkaline resistant
pH tolerance pH 9-12
Surface roughness Ra 50-100 μm (unsanded)µm

02 Mechanical

Tensile strength 0.4-0.5 MPaMPa
Compressive strength 9MPa
Flexural strength 9MPa
Shear strength 1.2-1.5 MPaMPa
Poisson's ratio 0.15-0.20
Impact resistance High (specific values not available)

03 Thermal

Thermal conductivity 0.20-0.26 W/m.KW/m·K
Specific heat 1000-1300 J/kg.KJ/kg·K
Thermal expansion 8-10 x 10⁻⁶/°C×10⁻⁶/°C

04 Compliance & Fire First question

Combustibility class A2-fl-s1
Fire resistance level Group 1 (AS 5637.1)
Ignition temp >400°C°C
Flame spread index 0 (AS 1530.3)
Smoke dev. index 0-3 (AS 1530.3)

05 Sustainability & Health

Embodied carbon 6-8 kg CO₂e/m² @ 12mm
Carbon footprint 450-550 kg CO₂e/m³
Embodied energy 4.5-5.5 MJ/kgMJ/kg
Recyclability 100% (crushed for aggregate)%
Recycled content Wood: 100% plantation timber%
Renewable content 20-30% (wood content)%
VOC emissions E0 class (<0.5 mg/L formaldehyde)
Toxicity rating Low (no hazardous emissions)
LEED contribution MR credits possible

06 Durability · Cost · Logistics

Expected lifespan 50+ years
Maintenance interval Annual inspection, 5-7 year resealing
Warranty period 10-15 years manufacturer
Material cost (range) $65-120 per m²
Material cost (per unit) $243-450 per sheet (3000x1250mm)
Lead time 2-4 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 availability Limited - 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

A1 External cladding in bushfire zones (BAL-29)
A2 Acoustic wall partitions
A3 Wet area substrates
A4 Industrial flooring
A5 Ceiling systems
A6 Facade panels
A7 Structural sheathing
A8 Modular construction
A9 Impact-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.

MATERIALS ATLAS · CL·AD C·43 · data indicative — verify per project