Premium Australian coated steel sheets with aluminium/zinc/magnesium alloy coating and optional paint system, engineered for 50+ year service life in harsh Australian conditions
01 Physical
Density7850kg/m³
Specific gravity7.85dimensionless
Porosity0%
Water absorption0%
Hardness130HV
UV resistanceExcellent
Chemical resistanceGood
pH tolerance4 – 9pH
Surface roughness1μm Ra
02 Mechanical
Tensile strength520 – 620MPa
Compressive strength550MPa
Flexural strength550MPa
Shear strength330MPa
Poisson's ratio0.3dimensionless
Impact resistanceGood
Creep resistanceExcellent
03 Thermal
Thermal conductivity45W/m·K
Specific heat460J/kg·K
Thermal expansion11.7×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility classNon-combustible per AS 1530.1
Fire resistance levelNon-combustible
Ignition temp500°C
Flame spread index0dimensionless
Smoke dev. index0dimensionless
Heat release rate0kW/m²
05 Sustainability & Health
Embodied carbon14.1kg CO2-eq/m²
Carbon footprint12.8kg CO2-eq/m²
Embodied energy148MJ/m²
Water footprint40.7L/m²
Recyclability100%
Recycled content25%
Renewable content0%
Circular score85%
VOC emissions0g/L
Toxicity ratingNon-toxic
LEED contribution2 – 4
06 Durability · Cost · Logistics
Expected lifespan50 – 100years
Maintenance interval6months
Material cost (range)18 – 40$/m²
Material cost (per unit)30$/m²
Lead time1 – 14days
Lifecycle cost2.5$/m²/year
Annual maintenance0.5$/m²/year
Market availabilityExcellent - stocked nationally
07 Assessment
Advantages
50+ year proven Australian performance
Non-combustible, BAL-FZ compliant
Lightweight (3.3-4.7 kg/m²)
100% recyclable
36-year warranty available
22 standard colours plus specialty finishes
Thermatech® solar reflectance technology
Activate® corrosion resistance technology
Termite and rot proof
Low thermal mass for improved comfort
Constraints
Higher initial cost than some alternatives
Can dent under impact
Requires compatible fasteners and flashings
Thermal expansion requires proper detailing
Cut edges need protection in severe environments
Regular washing required in sheltered areas
Can be noisy in rain without insulation
08 Applications
A1Residential roofing (all profiles)
A2Commercial/industrial roofing and walling
A3Architectural cladding systems
A4Rainwater goods (gutters, downpipes)
A5Fencing and screening
A6Garage doors and roller shutters
A7Insulated panel systems
A8Bushfire-rated construction (BAL-FZ)
A9Coastal and marine environments
A10Cold storage facilities
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.