E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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South Yorkshire · S1
Insulated Fire Glass (EI) for Sheffield buildings
From the S1 district outwards, we arrange insulated fire glass for buildings across Sheffield, matching glass, frames and seals to tested evidence rather than guesswork.
EI 30 – EI 120S1England
Quote for Sheffield
Tell us what you need. We reply with next steps and a guide price.
What our insulated fire glass service includes in Sheffield
Insulated fire glass, classified EI, is glazing that maintains integrity and keeps the temperature rise on the non-fire side within set limits for the rated time. It is usually made of several glass panes bonded with interlayers that foam into an insulating barrier when heated, or with a clear gel that absorbs heat.
- Internal and external-grade build-ups
- Insulating glass in sealed double-glazed units
- EI 30, EI 60, EI 90 and EI 120 glass
- Handling and installation of heavy panes
What to check before ordering insulated fire glass in Sheffield
The temperature rule
EI testing limits the average temperature rise on the unexposed face to 140°C and any single point to 180°C, which is why people can pass it.
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
Which rules apply to insulated fire glass in Sheffield?
England Which rules apply?
Building work in England is covered by the Building Regulations 2010, with fire safety guidance in Approved Document B and impact safety guidance for glazing in Approved Document K.
Once a building is in use, the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to maintain fire safety measures, including fire-resisting glazing. The Fire Safety (England) Regulations 2022 add duties for multi-occupied residential buildings, including fire door checks in buildings over 11 metres.
In higher-risk buildings, broadly 18 metres or seven storeys with two or more homes, the Building Safety Regulator is the building control authority. England is also phasing out BS 476 references from Approved Document B, with the remaining fire-resistance references due to go in September 2029.
Sheffield coverage and nearby towns
Whether the building is in central Sheffield or the wider S1, S2, S3, S4, S7, S11 districts, we can survey and quote. We also cover Rotherham, Dronfield, Chapeltown. Sheffield is the main town we cover in South Yorkshire.
EI glass in RotherhamEI glass in DronfieldEI glass in ChapeltownEI glass in StaveleyEI glass in Chesterfield
What every Sheffield quote includes
Rated systems, not just rated glass
Every quote in Sheffield identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Work around occupied buildings
We can phase work in Sheffield around residents, staff or pupils, with out-of-hours options.
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so Sheffield budgets are not open-ended.
Building types we cover in Sheffield
Sector guides below cover schools and colleges, offices and other buildings in Sheffield.
Questions about insulated fire glass in Sheffield
What does EI 60 mean?
The glazing system kept fire on one side (integrity) and limited the temperature rise on the other side (insulation) for at least 60 minutes in a standard fire test.
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Which rules apply to fire-rated glazing in Sheffield?
Building work in Sheffield follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
How quickly can you survey in Sheffield?
Survey timing in Sheffield depends on access, the size of the building and how urgent the defect is. Tell us your deadline when you enquire and we will confirm a date before you commit.
Related
Related services in Sheffield
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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E 30 – EI 60
Stair, Lobby & Corridor Glazing
Glazed screens and doors on protected stairs, lobbies and corridors.
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E 30 – EI 60
Frameless Fire-Rated Glazing
Butt-jointed fire glass walls with minimal frames.
Learn more →Process
How a Sheffield job runs
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Measure and check
We measure each opening in Sheffield and check what the existing frames can accept.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.