England · 36 postcode districts
Insulated Fire Glass (EI) across Derbyshire
We survey, supply and install insulated fire glass across Derbyshire, from Derby to Chesterfield, Long Eaton, Ilkeston, Swadlincote, working to the classification your fire strategy sets.
EI 30 – EI 120EnglandDESSK
Quote for Derbyshire
Tell us what you need. We reply with next steps and a guide price.
Insulated Fire Glass (EI): an overview for Derbyshire
EI glass is the choice where people need to pass close to the glass during a fire, where combustible materials sit near it, or where building guidance would otherwise restrict glazing. We supply and fit EI 30 to EI 120 glass in tested frames, internally and externally.
- Internal and external-grade build-ups
- Insulating glass in sealed double-glazed units
- Handling and installation of heavy panes
Before you order in Derbyshire
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
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.
Thickness and weight
Each step up in rating adds layers, so EI 120 is far thicker and heavier than EI 30. The frame has to be designed for it.
Towns we cover in Derbyshire
We cover insulated fire glass in Derby and across Derbyshire, including Chesterfield, Long Eaton, Ilkeston, Swadlincote.
Derby (DE1)Chesterfield (S49)Long Eaton (NG10)Ilkeston (DE7)Swadlincote (DE11)Staveley (S43)Belper (DE56)Heanor (DE75)Alfreton (DE55)Dronfield (S18)Ripley (DE5)Buxton (SK17)
England rules for fire glazing
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.
FAQs for Derbyshire
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
Can EI glass be used outside?
Only products approved for external use, usually in a sealed unit with UV protection.
Do you cover all of Derbyshire?
Yes. We take enquiries from across Derbyshire, including Derby and Chesterfield, Long Eaton, Ilkeston, Swadlincote, and arrange surveys to suit your programme.
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Process
How a Derbyshire job runs
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Site visit
A survey in Derbyshire confirms sizes, access, existing evidence and fixing conditions.
Written quote
You receive a written quote naming the tested system and classification.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.