Fire-rated glass system, various ratings (6mm-25mm monolithic; 23mm-52mm laminated/IGU)
High-performance fire-rated glazing systems providing integrity (E) and insulation (I) ratings from 30-120 minutes, manufactured from borosilicate glass-ceramics or laminated glass with intumescent interlayers, compliant with AS 1530.4 and NCC requirements.
High-performance fire-rated glazing systems providing integrity (E) and insulation (I) ratings from 30-120 minutes, manufactured from borosilicate glass-ceramics or laminated glass with intumescent interlayers, compliant with AS 1530.4 and NCC requirements.
Fire-rated glass systems encompass two primary technologies: monolithic borosilicate glass-ceramics (6mm-25mm) offering integrity-only protection, and laminated/IGU systems (23mm-52mm) providing both integrity and insulation ratings. Glass-ceramic products like SCHOTT Pyran utilise low thermal expansion borosilicate compositions, while laminated systems such as Pilkington Pyrostop incorporate intumescent interlayers that foam when exposed to heat, creating an opaque barrier against fire, smoke, and radiant heat transfer.
- Maintains visibility during evacuation scenarios
- Prevents spread of fire, smoke and toxic gases
- Provides radiant heat protection up to 40kW/m²
- Available in large sheet sizes (up to 1.3m × 2.5m)
- Can achieve FRL ratings up to -/180/120
- Compatible with aluminium and steel framing systems
- No spontaneous breakage risk (no nickel sulphide inclusions)
- Impact safety ratings available (AS 2208 compliance)
- Clear appearance without amber tinting in modern products
- Withstands thermal shock and direct flame impingement
- 01 Maintains visibility during evacuation scenarios
- 02 Prevents spread of fire, smoke and toxic gases
- 03 Provides radiant heat protection up to 40kW/m²
- 04 Available in large sheet sizes (up to 1.3m × 2.5m)
- 05 Can achieve FRL ratings up to -/180/120
- 01 Significantly higher cost than standard glazing (3-5× premium)
- 02 Limited supplier base in Australian market
- 03 Weight implications for structural design (especially laminated)
- 04 Requires certified framing systems for rated assemblies
- 05 Installation requires specialist contractors
- Density
- 2230 kg/m³
- Specific gravity
- 2.23
- Porosity
- 0 %
- Water absorption
- 0 %
- Hardness
- 418 kg/mm²
- UV resistance
- Excellent
- Chemical resistance
- Class 1 ISO 719
- pH tolerance
- 1-14 pH
- Surface roughness
- 0.02 μm Ra
- Tensile strength
- 45 MPa
- Compressive strength
- 1000 MPa
- Flexural strength
- 69 MPa
- Shear strength
- 35 MPa
- Poisson's ratio
- 0.2
- Impact resistance
- Grade A AS 2208
- Creep resistance
- Excellent
- Embodied carbon
- 1350 kgCO₂eq/tonne
- Carbon footprint
- 8.5 kgCO₂/m²
- Embodied energy
- 15 MJ/kg
- Water footprint
- 28 L/kg
- Recycled content
- 25 %
- Renewable content
- 0 %
- Circular score
- 7 /10
- Combustibility class
- Non-combustible
- Fire resistance level
- 30-120 minutes
- Ignition temp
- N/A °C
- Flame spread index
- 0
- Smoke dev. index
- 0
- Heat release rate
- 0 kW/m²
- Material cost (range)
- 800 – 2500 AUD/m²
- Material cost (per unit)
- 1400 AUD/m²
- Lead time
- 6-12 weeks
- Lifecycle cost
- 45 AUD/m²/year
- Annual maintenance
- 15 AUD/m²/year
- Market availability
- Limited
- Expected lifespan
- 30 years
- Maintenance interval
- 1 year
- Warranty period
- 10 years