Fire-Rated Glazed Partitions
EI30 Single GlazedEI 30
Provides both integrity and insulation for 30 minutes. Prevents fire spread AND limits heat transfer, protecting escape routes and adjacent spaces.
Technical Specifications
Fire Rating EI 30
Glass Type Laminated Toughened Safety Glass
Glass Thickness 18mm – 24mm
Frame Type Steel with intumescent seals
Max Width 1500 mm
Max Height 4000 mm
Acoustic Rating Rw 39 dB – Rw 42dB
EI60 Single GlazedEI 60
Full EI 60 protection – blocks flames, smoke, AND radiant heat for 60 minutes. Essential for compartmentation where heat protection is critical.
Technical Specifications
Fire Rating EI 60
Glass Type Laminated Toughened Safety Glass
Glass Thickness 25mm – 33mm
Frame Type Steel with Intumescent Seals
Max Width 1500 mm
Max Height 4000 mm
Acoustic Rating Rw 21 dB – Rw 44dB
EI90 Single GlazedEI 90
Premium EI 90 system – maintains structural integrity AND thermal insulation for 90 minutes. Prevents ignition of materials on unexposed side.
Technical Specifications
Fire Rating EI 90
Glass Type Laminated Toughened Safety Glass
Glass Thickness 35mm – 42mm
Frame Type Steel with Intumescent Seals
Max Width 1500 mm
Max Height 3500 mm
Acoustic Rating Rw 46 dB
EI120 Single GlazedEI 120
Maximum EI 120 protection – dual-action fire and heat barrier for 2 hours. Gel interlayers expand when heated to maintain both integrity and insulation.
Technical Specifications
Fire Rating EI 120
Glass Type Laminated Toughened Safety Glass
Glass Thickness 47mm – 52mm
Frame Type Steel with Intumescent Seals
Max Width 1500 mm
Max Height 3500 mm
Acoustic Rating Rw 47 dB
E30 Single GlazedE 30
Integrity-only rating – prevents flames and smoke passage for 30 minutes but does NOT provide insulation. Heat can radiate through. Used where visibility is critical and insulation not required.
Technical Specifications
Fire Rating E 30
Glass Type Laminated Toughened Safety Glass
Glass Thickness 13mm
Frame Type Steel with Intumescent Seals
Max Width 1500 mm
Max Height 3500 mm
Acoustic Rating Rw 37 dB
E60 Single GlazedE 60
E-rated system blocks fire and smoke for 60 minutes but allows radiant heat transfer. Heat can radiate through. Used where visibility is critical and insulation is not required.
Technical Specifications
Fire Rating E 60
Glass Type Laminated Toughened Safety Glass
Glass Thickness 19mm
Frame Type Steel with Intumescent Seals
Max Width 1500 mm
Max Height 3500 mm
Acoustic Rating Rw 40 dB
Understanding Fire Ratings: E vs EI
E Rating - Integrity Only
What it does:
- Prevents fire penetration (flames cannot pass through)
- Blocks smoke and hot gases
- Maintains structural integrity
What it DOES NOT do:
- Does NOT prevent heat transfer
- Glass surface on unexposed side becomes hot
- Radiant heat can ignite nearby materials
Typical Applications:
Vision panels in fire doors, internal windows where heat insulation is not required, areas where visibility is prioritized over heat protection.
EI Rating - Integrity + Insulation
What it does:
- Prevents fire penetration (flames cannot pass through)
- Blocks smoke and hot gases
- Maintains structural integrity
- Limits heat transfer to unexposed side
- Prevents radiant heat ignition
- Keeps unexposed surface below critical temperature (≤140°C average)
Fire compartmentation walls, protected escape routes, stairwells, high-rise buildings, areas requiring full thermal protection.
Technical Standards & Testing
Temperature Limits: For EI ratings, the unexposed face must not exceed 140°C average temperature rise (or 180°C at any single point) for the specified duration.
Testing Standards: All products tested to EN 1364-1 (European), BS 476-22 (British), and ISO 834 (International) standards under controlled furnace conditions.
Important: Building regulations may mandate EI-rated glazing in certain applications. Consult with fire safety engineers and local building control to determine appropriate ratings for your project. E-rated glass should never be used where insulation is required.