Sheet · Sizes pending
Metallic — indicative fig. M·73
Fire A1 Non-combustibleEmbodied carbon 0.50kgCO₂e/kg Low–mediumCompressive 130-220MPa StructuralDesign life 40yr
Lightweight aluminum alloy sheets for cladding, roofing, and facade applications with corrosion resistance
01 Physical
Density 2680-2730kg/m3
Specific gravity 2.68-2.73
Porosity 0%
Water absorption 0%
Hardness 2.5-3.0Mohs
UV resistance Excellent (material), coating-dependent (finish)
Chemical resistance Good (atmospheric), Poor (strong acid/alkali)
pH tolerance 4-9pH
Surface roughness 0.4-5.0um
02 Mechanical
Tensile strength 150-320MPa
Compressive strength 130-220MPa
Flexural strength N/A (governed by yield strength)MPa
Shear strength 70-138MPa
Poisson's ratio 0.33
Impact resistance ModerateJ
Creep resistance Good
03 Thermal
Thermal conductivity 134-193W/mK
Specific heat 880-920J/kgK
Thermal expansion 0.023-0.024mm/m/degC
04 Compliance & Fire First question
Combustibility class Non-combustible (A1)
Fire resistance level 0 (loses structural integrity at 660 degC)minutes
Ignition temp N/A - non-combustibledegC
Flame spread index 0
Smoke dev. index 0
Heat release rate 0kW/m2
05 Sustainability & Health
Embodied carbon 0.5-12.5kg CO2-eq/kg
Carbon footprint 3-74kg CO2-eq/m2
Embodied energy 8-230MJ/kg
Water footprint 10-30L/kg
Recyclability 100%
Recycled content 35-90+%
Renewable content 0%
Circular score 8.5/10
VOC emissions 0ug/m3
Toxicity rating Non-toxic
LEED contribution 2-5points
06 Durability · Cost · Logistics
Expected lifespan 40-60+years
Maintenance interval 1-5years
Warranty period 10-25years
Material cost (range) 14-65AUD/m2
Material cost (per unit) 30-55AUD/m2
Lead time 3-30days
Lifecycle cost 100-400AUD/m2
Annual maintenance 1.00-5.00AUD/m2/year
Market availability Excellent
07 Assessment
Advantages
- Lightweight - approximately one-third the weight of steel (2680-2730 kg/m3)
- Excellent natural corrosion resistance from oxide layer
- Non-combustible per AS 1530.1 (solid sheet) - full NCC compliance
- 100% recyclable with recycling requiring only 5% energy of primary production
- Excellent formability for complex architectural profiles
- Wide range of finishes (anodised, PVDF, powder coat, mill)
- Long lifespan (40-60+ years with quality coating)
- Low maintenance - wash down annually
- High strength-to-weight ratio
Constraints
- Very high embodied energy and carbon for primary aluminium (8,300-12,460 kg CO2e/tonne)
- High thermal conductivity creates thermal bridging issues requiring thermal breaks
- Susceptible to galvanic corrosion when in contact with dissimilar metals
- Higher material cost than steel or fibre cement cladding
- Poor acoustic performance as solid sheet (NRC <0.10) - highly reflective
- Soft material susceptible to denting and scratching (especially mill finish)
- Limited fire resistance rating (melts at ~660 degC) despite non-combustibility classification
- Oil-canning/waviness visible in large flat panels
08 Applications
A1 External wall cladding Non-combustible aluminium sheet and panel systems for building facades, compliant with NCC fire requirements for Type A and Type B buildings
A2 Metal roofing Lightweight aluminium roofing in corrugated, standing seam, and concealed fix profiles for residential and commercial buildings
A3 Decorative screening Perforated and laser-cut aluminium panels for sun shading, privacy screening, and architectural feature elements
A4 Fascia and soffit Aluminium sheet for eaves lining, fascia boards, and soffit panels providing durable low-maintenance building envelope elements
A5 Rainscreen cladding Ventilated rainscreen facade systems with aluminium outer skin, air cavity, and insulated backing wall for high-performance building envelopes
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.