AGC Flatglass Pyrobel 25 & 25EG (IGUs)
AGC Flatglass · evidence reference CF377 (Warringtonfire Certifire, stated validity to 20 Jun 2029)
Within stated validity to 20 Jun 2029; issuer status still requires checking
This glass can achieve different fire ratings depending on how it is used — internal or external, door or screen, single or double-glazed unit, and the framing system. Each record below must be checked against the current certificate, test regime and complete framing, seals, fixings, installation and exposure. Only explicitly reviewed mappings carry review provenance; other extracted data remains unverified.
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Certified options for this glass
Check recorded size bounds and outstanding evidence
A size fit is only one part of qualification. The complete framing, seals, fixings, exposure and current certificate must be checked. No rotation or interpolation between tabulated pairs is assumed.
System verification required
Test regime / source mapping unverified · numeric integrity/insulation minutes do not automatically establish EN 13501 E/EW/EI.
Within stated validity to 20 Jun 2029; issuer status still requires checking
Door
Steel
Single
Internal or External
2.94 m² max area
Confirm the cited system's width, height, area, orientation and any dimension graph; do not assume rotation or interpolation.
- A minimum 6.8 mm laminated glass must be used as the external pane for IGU’s incorporating internal grade Pyrobel 25. The steel profiled door framing system shall have test evidence, such as RP Technik Isofeu 60, or be CERTIFIRE approved for the
System verification required
Test regime / source mapping unverified · numeric integrity/insulation minutes do not automatically establish EN 13501 E/EW/EI.
Within stated validity to 20 Jun 2029; issuer status still requires checking
Screen
Steel
IGU
Internal or External
5.25 m² max area
Confirm the cited system's width, height, area, orientation and any dimension graph; do not assume rotation or interpolation.
- Pyrobel 25 and Pyrobel 25 EG
- Neutral silicone capping
- 15 mm wide by 3-6 mm thick ceramic fibre based glazing tape
- Non-combustible setting blocks
- Steel Section 30 mm by 30 mm by 3 mm
- 55 mm by 19 mm calcium silicate
- 35 mm long steel screws at 250 mm centres
- Pyrobel 25 Glass in RP Technik ISO 70FP multi-paned steel framed screens for periods of 60 minutes integrity and 60 minutes insulation EFR-19-V-003746 utilising the following basic specification. The edge cover to each pane shall be no less than 15 mm minimum
- A minimum 6.8 mm laminated glass must be used as the external pane for IGU’s incorporating internal grade Pyrobel 25.
System verification required
Test regime / source mapping unverified · numeric integrity/insulation minutes do not automatically establish EN 13501 E/EW/EI.
Within stated validity to 20 Jun 2029; issuer status still requires checking
Screen
Timber
IGU
Internal or External
4.765 m² max area
Confirm the cited system's width, height, area, orientation and any dimension graph; do not assume rotation or interpolation.
- Pyrobel 25 and Pyrobel 25 EG
- Neutral Silicone capping
- 15 mm wide by 4 mm thick closed cell foam tape (see page 6 for approved tapes)
- 27 mm high by 30 mm wide (with 15o chamfer) hardwood glazing beads, minimum density 640 kg/m3
- Non-combustible setting blocks
- 50 mm long steel screws at 250 mm centres (30o to glass)
- 95 mm by 33 mm (minimum) hardwood perimeter framing sections, 95 mm by 46 mm (minimum) hardwood internal transom/mullion framing sections, minimum density 640 kg/m3
- 25 mm high by 31 mm wide (with 15o chamfer) softwood glazing beads, minimum density 590 kg/m3
- 98 mm by 32 mm (minimum) softwood perimeter framing sections, 98 mm by 57 mm (minimum) softwood internal transom/mullion framing sections, minimum density 590 kg/m3
- IGU comprising Pyrobel 25 or Pyrobel 25 External Grade, a minimum 10 mm wide air cavity and minimum 6 mm thick non-fire rated glass (toughened, float, laminated, coated, tinted)*. IGU’s may be triple glazed to a similar specification with the Pyrobel 25 forming the unexposed face pane and two panes of non-fire rated glass positioned to the fire side of the Pyrobel 25
- 20 mm high by 40 mm wide (either square of up to 15o chamfer) hardwood glazing beads, minimum density 640 kg/m3
- 50 mm long steel screws at 300 mm centres (30o to glass)
- 112 mm by 33 mm (minimum) hardwood perimeter framing sections, 112 mm by 46 mm (minimum) hardwood internal transom/mullion framing sections, minimum density 640 kg/m3
- A minimum 6.8 mm laminated glass must be used as the secondary pane for IGU’s incorporating internal grade Pyrobel 25.
Understanding the grades
Integrity for the classified duration. It does not establish radiation control or insulation.
The complete system and classification report determine E performance.
Integrity plus a radiation limit for the classified duration. EW is distinct from E and from EI.
Check radiation performance in the system classification report.
Integrity plus insulation for the classified duration. A BS 476 integrity/insulation pair alone is not an EN 13501 EI classification.
Specify class and minutes from the project fire strategy.
Manufacturer location/exposure terminology, separate from fire-resistance class. Confirm the specific glass, system and installation conditions.
Internal/external suitability cannot be inferred from the letters E, EW or EI.







