mineral / Glass / Glass Assembly

Triple glazed IGU, various configurations (36mm, 40mm, 44mm, 52mm total unit)

High-performance triple-pane insulated glass units offering superior thermal insulation (U-value 0.5-0.9 W/m²K) and acoustic performance (STC 36-40+) for premium building applications

Atlas code
MIN-GLA-ASY-002
mineralglasstriple-glazedIGUinsulated-glassenergy-efficientacoustic
Triple glazed IGU, various configurations (36mm, 40mm, 44mm, 52mm total unit)
At-a-glance signals

High-performance triple-pane insulated glass units offering superior thermal insulation (U-value 0.5-0.9 W/m²K) and acoustic performance (STC 36-40+) for premium building applications

Overview
Executive summary

Triple glazed IGUs consist of three glass panes separated by hermetically sealed spacers creating two insulating cavities filled with air or argon gas. Available in 36mm, 40mm, 44mm and 52mm overall thicknesses, these units incorporate low-E coatings and warm-edge spacers to achieve exceptional thermal performance. Primarily specified for high-performance residential and commercial projects in cooler climates or where superior acoustic isolation is required.

Best when…
  • Superior thermal insulation (U-value 0.5-0.9 W/m²K)
  • Excellent acoustic performance (STC 36-40+)
  • Reduced condensation risk
  • Improved thermal comfort near windows
  • Potential for energy cost savings in cold climates
  • Compliance with stringent energy codes
  • Reduced HVAC equipment sizing
  • Enhanced property value
  • UV protection for interior furnishings
Top advantages
  1. 01 Superior thermal insulation (U-value 0.5-0.9 W/m²K)
  2. 02 Excellent acoustic performance (STC 36-40+)
  3. 03 Reduced condensation risk
  4. 04 Improved thermal comfort near windows
  5. 05 Potential for energy cost savings in cold climates
Top limitations
  1. 01 High initial cost ($500-800/m²)
  2. 02 Increased weight requiring stronger framing
  3. 03 31% higher embodied carbon than alternatives
  4. 04 Limited local manufacturing capacity
  5. 05 Specialised installation expertise required
Technical
Physical ·9
Density
2500 kg/m³
Specific gravity
2.5
Porosity
0 %
Water absorption
0 %
Hardness
540
UV resistance
Excellent // Blocks 99% UV with low-E coatings
Chemical resistance
Excellent // Glass is chemically inert
pH tolerance
3-11
Surface roughness
1 µm
Mechanical ·7
Tensile strength
7 MPa
Compressive strength
1000 MPa
Flexural strength
40 MPa
Shear strength
20 MPa
Poisson's ratio
0.22
Impact resistance
Standard // Unless laminated or toughened
Creep resistance
Excellent // No creep at room temperature
Sustainability & Health
Embodied carbon & energy ·7
Embodied carbon
75 kgCO2e/m² Per m² of triple glazed IGU (glazing industry standard reporting basis).
Carbon footprint
75
Embodied energy
1200 MJ/kg
Water footprint
500 L/kg
Recycled content
20 %
Renewable content
0 %
Circular score
7
Compliance & Fire
Fire performance ·5
Combustibility class
Non-combustible
Fire resistance level
Non-rated // Standard units; fire-rated available
Flame spread index
0
Smoke dev. index
0
Heat release rate
0
Cost & Lifecycle
Capex & lead time ·6
Material cost (range)
$500-800 // AUD per m²
Material cost (per unit)
$650/m² // AUD average
Lead time
4-8 weeks // For custom sizes
Lifecycle cost
$1200-1800/m² // AUD over 30 years
Annual maintenance
$5-10/m² // AUD
Market availability
Limited // In Australian market
Service life & durability ·3
Expected lifespan
25-30 years
Maintenance interval
Annual cleaning
Warranty period
10 years // Typical manufacturer warranty
Layer D

Where it's used

Passive House and high-performance residential buildings
Commercial facades in cold climates (BCA zones 6-8)
Acoustic isolation for buildings near airports/highways
Heritage building retrofits requiring thermal upgrade
Hospital and laboratory clean rooms
Recording studios and broadcast facilities
Alpine resort accommodation
Energy-efficient office buildings
Residential apartments requiring acoustic privacy
MIN-GLA-ASY-002 · Materials Atlas · CLAD Atlas data is reference-only. Verify against manufacturer specifications and current standards before specifying.