EI 30 – EI 120
Insulated Fire Glass (EI)
EI 30 to EI 120 glass that blocks heat as well as flames.
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County Londonderry · BT47
Fire-Resistant Glass in Derry / Londonderry
Looking for fire-resistant glass in Derry / Londonderry? We survey, supply and install tested fire-rated glazing for public buildings, schools and colleges and other buildings in and around Derry / Londonderry, including the BT47 postcode district.
E 30 – EI 120BT47Northern Ireland
Quote for Derry / Londonderry
Tell us what you need. We reply with next steps and a guide price.
Fire-Resistant Glass in Derry / Londonderry: what's included
Fire-resistant glass is glazing that has been tested, as part of a complete glazed system, to hold back fire for a set time. It is classified by what it stops: E (integrity) keeps flames and hot gases on the fire side, EW also limits the heat radiated through the glass, and EI (integrity and insulation) also limits the temperature rise on the protected side, so people can pass it more safely.
- Integrity with radiation control (EW) laminated glass
- Glazing beads and fixings to the frame manufacturer's details
- Intumescent glazing seals, tapes and gaskets to the tested specification
- Impact-classified build-ups for critical locations
How we work in Derry / Londonderry
Work around occupied buildings
We can phase work in Derry / Londonderry around residents, staff or pupils, with out-of-hours options.
Honest about unknowns
If an existing frame in a Derry / Londonderry building has no traceable evidence, we say so and price the options rather than guess.
Northern Ireland rules applied
Designs follow the building and fire safety rules that apply in Northern Ireland, not a one-size-fits-all approach.
Before you order fire-resistant glass: what matters
Inside or outside?
Many insulating fire glasses use interlayers that need protecting from UV and moisture, so external positions need a product approved for exterior use, with the right edge seal and glazing system.
Weight and handling
Insulating fire glass gets thicker and heavier as the rating rises. Large EI 60 and EI 120 panes often need lifting equipment and a frame designed for the load, which we plan before the delivery date.
Which classification do you actually need?
The fire strategy or building control drawings set the rating for each element. Integrity-only glass is cheaper and thinner, but its use on escape routes is restricted; insulating glass carries far fewer restrictions because people can pass it safely during a fire.
Where we work around Derry / Londonderry
Our County Londonderry coverage takes in Derry / Londonderry (BT47, BT48) and the neighbouring towns of Coleraine, Omagh, Ballymena. Derry / Londonderry is the main town we cover in County Londonderry.
Fire glass in ColeraineFire glass in OmaghFire glass in BallymenaFire glass in PortadownFire glass in Craigavon
Fire glazing rules in Northern Ireland
Northern Ireland Which rules apply?
In Northern Ireland, building work follows the Building Regulations (Northern Ireland) 2012, with fire safety guidance in Technical Booklet E, approved by the district council's building control.
Once in use, the Fire and Rescue Services (Northern Ireland) Order 2006 and the Fire Safety Regulations (Northern Ireland) 2010 require the appropriate person to maintain fire safety measures, including fire-resisting glazing.
Technical Booklet E sets its own provisions for glazing on escape routes, so designs are checked against the Northern Ireland guidance rather than English documents.
Building types we cover in Derry / Londonderry
Fire-resistant glass applies to many building types in Derry / Londonderry, including public buildings and schools and colleges.
Questions about fire-resistant glass in Derry / Londonderry
How thick is fire-resistant glass?
Integrity glass can be similar in thickness to standard glass. Insulating glass is laminated from several layers, so it gets markedly thicker and heavier as the rating increases from EI 30 to EI 120.
What is the difference between E, EW and EI fire glass?
E is integrity only: it stops flames and hot gases passing for the rated time. EW adds a limit on radiated heat through the glass. EI adds insulation, keeping the unexposed face below set temperature rises so people can pass it safely. The number after the letters is the time in minutes.
Do you work on occupied buildings in Derry / Londonderry?
Yes. We plan phasing, out-of-hours work and temporary protection so the building can stay in use where the fire strategy allows.
Do you carry out fire-resistant glass in Derry / Londonderry?
Yes. We survey and install in Derry / Londonderry and across County Londonderry, including the BT47 district and nearby Coleraine.
Related
Related services in Derry / Londonderry
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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like-for-like
Broken Fire Glass Replacement
Cracked or broken fire glass replaced to the original specification.
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E 30 – EI 120
Fire-Rated Glazed Screens
Internal glazed screens that keep compartments and corridors protected.
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From enquiry to handover in Derry / Londonderry
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Measure and check
We measure each opening in Derry / Londonderry 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.