Precast panel with integrated insulation core (200mm, 250mm, 300mm, 350mm total sandwich panel)
Insulated Panel
ATLAS CODE
COM-PNL-INS-009
Category composite
Material Family Panelised
Regulatory Status Non-combustible
Density
2100 kg/m³
Carbon (A1-A5)
145 kg CO₂e/m²
Fire Class
Non-combustible
Lifespan
100 years
Description
Precast insulated sandwich panels combine two reinforced concrete wythes with a rigid insulation core (EPS or XPS) and composite connectors that reduce thermal bridging. Typical panels use a 3-4 in outer wythe, 3-4 in insulation, and a 3-6 in structural inner wythe, providing both structural capacity and continuous insulation.
Primary Sectors
[Residential][Commercial][Industrial][Healthcare]
Typical Uses
- External load-bearing walls for residential and commercial buildings
- High-rise apartment facades requiring thermal and acoustic performance
- Cold storage facilities and controlled environment buildings
- Bushfire-prone area construction (BAL-12.5 to BAL-FZ rated)
- Warehouse and industrial building envelopes
- Educational and healthcare facility walls
- Tilt-up construction for rapid deployment
- Cyclone-resistant construction in Northern Australia
Recycled Content 25
Renewable Content 0
Recyclability 85
Embodied Carbon 145 kg CO₂e/m²
Embodied Energy 2.8 GJ/m²
EPD Available Yes
Advantages
Excellent thermal performance with continuous insulation (R2.4-R4.5)High fire resistance rating (FRL up to 180/180/180)Superior acoustic performance (Rw 50-65)Rapid construction with minimal site workFactory quality control and precisionIntegrated services and architectural featuresLong service life with minimal maintenanceComposite action provides enhanced structural capacitySuitable for all Australian climate zonesComplies with NCC energy efficiency requirements
Cautions
High initial capital cost ($230-$390 per m²)Requires crane access for installationTransport limitations for remote sitesLimited modification flexibility post-installationPotential for thermal bridging if poorly detailedHeavy panels require substantial foundationsLead time for custom manufacture (4-8 weeks)Skilled installation crew required
TECHNICAL DATA: PERFORMANCE PROPERTIES COM-PNL-INS-009
Density (Dry) 2100 kg/m³
Specific Gravity 2.1
Porosity 12 %
Water Absorption 4.5 %
Hardness 5 Mohs
Surface Roughness 3.2 μm
UV Resistance Excellent
Chemical Resistance Good
pH Tolerance 3 – 11
Compressive Strength 32 MPa
Tensile Strength 3.2 MPa
Flexural Strength 4.5 MPa
Shear Strength 0.65 MPa
Elastic Modulus 30000 MPa
Yield Strength 500 MPa
Impact Resistance High J/m
Bearing Capacity 250 kN/m
Poisson's Ratio 0.2
Creep Resistance Good
Abrasion Resistance Very Good
Thermal Conductivity 0.12 W/(m·K)
Thermal Resistance 2.9-3.7 m2K/W
Specific Heat Capacity 880 J/(kg·K)
Thermal Expansion 12 ×10⁻⁶/°C
Melting Point N/A °C
Ignition Temperature 1200 °C
Sound Transmission Class (STC) 55 STC
Noise Reduction Coeff. (NRC) 50 Rw
Optical
Light Transmittance 0 %
Light Reflectance (LRV) 35 %
Solar Reflectance (SRI) 29
Sandwich precast panels evolved from non-composite panels in the mid-20th century to modern composite systems using FRP connectors that improve thermal performance and structural action.
SAFETY, ECOLOGY & INSTALLATION COM-PNL-INS-009
Flame Spread Index 0
Smoke Developed Index 0
Combustibility Class Non-combustible
Ignition Temperature 1200 °C
Fire Resistance Rating 180 minutes
Heat Release Rate 0 kW/m²
Toxicity of Combustion Low
Embodied Carbon (A1-A3) 145 kg CO₂e/m²
Embodied Energy 2.8 GJ/m²
Water Footprint 180 L/m²
EPD Available Yes
LEED Points 8 points
Circular Economy Score 7 /10
VOC Emissions Very Low g/L
Skill Level Specialist
Crew Size 4 – 6
Installation Time 8 panels/day
Curing Time 24 hours
Setting Time 4 hours
Temperature Range 5 – 40 °C
Humidity Range 20 – 95 %
Required Tools
Mobile crane (25-50 tonne capacity)Spreader beam or panel lifting clutchTheodolite for alignmentGrouting equipmentTorque wrench for connectionsScaffolding or EWP
Certifications Required
Crane operator licenceRigger certificationWorking at heightsPrecast erection training
Weather Limitations
Wind speed <40 km/h for crane operationsNo installation in electrical stormsGrouting above 5°C
COMMERCIAL, LOGISTICS & REGULATORY COM-PNL-INS-009
Material Cost 230 – 390 AUD/m²
Installation Cost 60 – 120 AUD/m²
Annual Maintenance 2 AUD/m²/year
Lifecycle Cost (50yr) 420 AUD/m²
Market Availability Good
Lead Time 4 – 8 weeks
Design Life 100 years
Warranty Period 10 years
Maintenance Interval 10 years
Service Temp Range -40 – 70 °C
Freeze/Thaw Resistance Excellent
Dimensional Stability Excellent
DISCLAIMER: This specification document is generated from the CLAD Materials Atlas Database. Information is for general guidance only and does not constitute professional engineering advice. Values are typical and may vary by batch, manufacturer, and production run. Verify suitability for specific project applications independently.