England · 33 postcode districts
Insulated Fire Glass (EI) across Shropshire
We survey, supply and install insulated fire glass across Shropshire, from Telford to Shrewsbury, Wellington, working to the classification your fire strategy sets.
EI 30 – EI 120EnglandSYTFWV
Quote for Shropshire
Tell us what you need. We reply with next steps and a guide price.
Towns we cover in Shropshire
Across Shropshire we can survey in Telford, Shrewsbury, Wellington and every district in the SY, TF, WV, LD postcode areas.
Insulated Fire Glass (EI): an overview for Shropshire
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
- Impact-classified insulating glass
- Matched glazing systems and seals
What to check before ordering in Shropshire
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
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.
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.
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.
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.
Questions from Shropshire clients
Why is insulated fire glass so much more expensive?
It is a multi-layer product with specialist interlayers, and the frame and installation must suit its weight.
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
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.
Which parts of Shropshire do you cover?
All of it: Telford, Shrewsbury, Wellington and every district in the SY, TF, WV, LD postcode areas.
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Process
How a Shropshire 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 Shropshire and check what the existing frames can accept.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.