Glazing · 24–32 mm
Glass — indicative fig. M·50
Fire A1 Non-combustibleEmbodied carbon 13kgCO₂e/kg HighCompressive 248MPa StructuralDesign life 25yr
Double-glazed sealed glass units with air or argon gas fill, providing thermal and acoustic insulation for windows and facades. Standard configurations from 24-32mm total thickness.
01 Physical
Density 2500kg/m³
Specific gravity 2.5
Porosity 0%
Water absorption 0%
Hardness 5.5
UV resistance excellent
Chemical resistance excellent
pH tolerance 7.0-10.0
Surface roughness 1µm
02 Mechanical
Tensile strength 28.4MPa
Compressive strength 248MPa
Flexural strength 69MPa
Shear strength 28MPa
Poisson's ratio 0.23
Impact resistance Grade A/B
Creep resistance excellent
03 Thermal
Thermal conductivity 0.038W/m·K
Specific heat 840J/kg·K
Thermal expansion 0.000009×10⁻⁶/°C
04 Compliance & Fire First question
Combustibility class Non-combustible
Fire resistance level N/A-NT
Ignition temp 700°C
Flame spread index 0
Smoke dev. index 0
Heat release rate 0
05 Sustainability & Health
Embodied carbon 12.5
Carbon footprint 12.5
Embodied energy 165MJ/kg
Water footprint 45L/kg
Recyclability 80%
Recycled content 20%
Renewable content 0%
Circular score 75
VOC emissions 0
Toxicity rating non-toxic
LEED contribution 8
06 Durability · Cost · Logistics
Expected lifespan 25-30 years
Maintenance interval 6-12 months
Warranty period 10-15 years
Material cost (range) $95-175
Material cost (per unit) $135
Lead time 2-5 days standard, 14-21 days custom
Lifecycle cost $280
Annual maintenance $5-10
Market availability excellent
07 Assessment
Advantages
- Significant thermal insulation improvement (U-value reduction 60-70% vs single glazing)
- Acoustic performance up to Rw 40 dB with laminated glass
- Condensation reduction through improved surface temperatures
- UV protection with Low-E coatings (<1% transmission)
- 100+ year material lifespan with 25-30 year seal warranty
- Available in multiple configurations for different performance requirements
- Compatible with all standard frame systems
- 75-85% recyclable by weight at end of life
Constraints
- Higher initial cost ($95-175/m² supply only)
- Cannot be cut or modified on site
- Potential for seal failure in extreme conditions
- Increased weight requires stronger frame systems
- Custom sizes have 14-21 day lead times
- Thermal stress limitations in partial shading
- Limited repair options if damaged
- Performance degradation if argon gas leaks
08 Applications
A1 Residential windows and doors
A2 Commercial curtain wall systems
A3 High-rise facades
A4 Acoustic barriers for noise-sensitive areas
A5 Energy-efficient retrofits
A6 Skylights and atriums
A7 Temperature-controlled environments
A8 Bushfire-prone areas (with toughened glass)
09 Sources & Standards
Sources pending — citations for this material are not yet recorded. Verify all figures against manufacturer data and current standards before specifying.