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England · 34 postcode districts

Insulated Fire Glass (EI) in Gloucestershire

Insulated fire glass across Gloucestershire covers 34 postcode districts in the GL, BS postcode areas. Every job is built around a tested system.

EI 30 – EI 120EnglandGLBS

Quote for Gloucestershire

Tell us what you need. We reply with next steps and a guide price.

Edge of a multi-layer laminated glass pane showing its interlayers

Insulated Fire Glass (EI): an overview for Gloucestershire

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.

  • Handling and installation of heavy panes
  • Insulating glass in sealed double-glazed units
  • EI 30, EI 60, EI 90 and EI 120 glass

Insulated Fire Glass (EI) by town in Gloucestershire

Gloucestershire coverage includes Gloucester, Cheltenham, Stroud, Kingswood, Mangotsfield and the GL, BS postcode areas (34 postcode districts).

Before you order in Gloucestershire

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.

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 Gloucestershire

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.

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 Gloucestershire?

Yes. We take enquiries from across Gloucestershire, including Gloucester and Cheltenham, Stroud, Kingswood, Mangotsfield, and arrange surveys to suit your programme.

Related

Related services in Gloucestershire

Process

How a Gloucestershire job runs

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 Gloucestershire and check what the existing frames can accept.

Quote and evidence

Your quote lists each item with its classification and the evidence it relies on.

Install and hand over

Installation to the system details, then a handover pack with photographs and evidence.

Need fire-rated glazing checked, replaced or installed?

Send sizes, photos of any glass marks or your inspection report and we will come back with the right tested system.

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