Form · 0.55–0.7 mm
Metallic — indicative fig. M·104
Fire A1 Non-combustibleEmbodied carbon 3.80kgCO₂e/kg Medium–highCompressive 200MPa StructuralDesign life 50yr
Premium non-combustible metal roofing system with exceptional longevity (50-100+ years), complete recyclability, and natural patina protection suitable for all Australian climate zones and BAL ratings.
01 Physical
Density 8960kg/m³
Specific gravity 8.96
Porosity 0%
Water absorption 0%
Hardness 250
UV resistance Excellent
Chemical resistance Excellent
pH tolerance 4.0-9.0
Surface roughness 1.2µm
02 Mechanical
Tensile strength 210MPa
Compressive strength 200MPa
Flexural strength 250MPa
Shear strength 150MPa
Poisson's ratio 0.34
Impact resistance Good
Creep resistance Good
03 Thermal
Thermal conductivity 401W/m·K
Specific heat 385J/kg·K
Thermal expansion 16.8×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility class Non-combustible
Fire resistance level Non-combustible
Flame spread index 0
Smoke dev. index 0
Heat release rate 0
05 Sustainability & Health
Embodied carbon 3.8
Carbon footprint 2.5
Embodied energy 70MJ/kg
Recyclability 100%
Recycled content 30%
Renewable content 0%
Circular score 95
VOC emissions 0
Toxicity rating Non-toxic
LEED contribution 7
06 Durability · Cost · Logistics
Expected lifespan 50-100+
Maintenance interval Annual inspection
Warranty period 20-50
Material cost (range) 180-250
Material cost (per unit) 215
Lead time 4-8 weeks
Lifecycle cost 8-12
Annual maintenance 0-5
Market availability Moderate
07 Assessment
Advantages
- Exceptional longevity (50-100+ years)
- 100% recyclable without quality loss
- Non-combustible (suitable for all BAL ratings)
- Natural UV and corrosion resistance
- Self-healing patina protection
- Lightweight (approximately 5.5-7.0 kg/m²)
- Superior thermal conductivity
- Antimicrobial properties
- Low maintenance requirements
- Increases property value
Constraints
- High initial cost ($260-400/m² installed)
- Limited qualified installer base
- Potential for galvanic corrosion with dissimilar metals
- Runoff can stain adjacent materials
- High theft risk due to scrap value
- Thermal movement requires careful detailing
- Natural patina colour change may not suit all aesthetics
- Higher labour costs for installation
- Requires compatible accessories and flashings
- Long lead times for specialty profiles
08 Applications
A1 Heritage building restoration
A2 Premium residential roofing
A3 Coastal architecture
A4 Bushfire-prone area construction
A5 Commercial and institutional buildings
A6 Curved and complex roof geometries
A7 Architectural features and dormers
A8 Green building projects
A9 Long-span roofing applications
A10 Historic precinct developments
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.