E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Mid Glamorgan · CF47
Merthyr Tydfil insulated fire glass
We provide insulated fire glass in Merthyr Tydfil and across Mid Glamorgan, working from the classification your building needs and handing over the evidence that proves what was fitted.
EI 30 – EI 120CF47Wales
Quote for Merthyr Tydfil
Tell us what you need. We reply with next steps and a guide price.
What's involved with insulated fire glass in Merthyr Tydfil
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.
- EI 30, EI 60, EI 90 and EI 120 glass
- Impact-classified insulating glass
- Insulating glass in sealed double-glazed units
- Matched glazing systems and seals
What to check before ordering insulated fire glass in Merthyr Tydfil
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.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
Merthyr Tydfil coverage and nearby towns
We cover Merthyr Tydfil and the surrounding postcode districts, including CF47, CF48. Nearby towns we also serve include Aberdare, Rhondda, Ebbw Vale. Rhondda, around 11 km from Merthyr Tydfil, is the largest town in the same coverage area.
EI glass in AberdareEI glass in RhonddaEI glass in Ebbw ValeEI glass in TonypandyEI glass in Pontypridd
How we work in Merthyr Tydfil
Honest about unknowns
If an existing frame in a Merthyr Tydfil building has no traceable evidence, we say so and price the options rather than guess.
Rated systems, not just rated glass
Every quote in Merthyr Tydfil identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Wales rules applied
Designs follow the building and fire safety rules that apply in Wales, not a one-size-fits-all approach.
Which rules apply to insulated fire glass in Merthyr Tydfil?
Wales Which rules apply?
Building regulations are devolved in Wales, so fire safety design follows the Welsh Ministers' version of Approved Document B rather than the English one, alongside impact safety guidance for glazing.
The Regulatory Reform (Fire Safety) Order 2005 applies in Wales, so the responsible person must maintain fire-resisting glazing as part of the premises' fire safety measures. The Fire Safety Act 2021 confirmed this extends to the structure, external walls and flat entrance doors of multi-occupied residential buildings.
Wales is introducing its own building safety regime for occupied residential buildings, so check current Welsh requirements before planning major works to blocks of flats.
Building types we cover in Merthyr Tydfil
Insulated fire glass applies to many building types in Merthyr Tydfil, including industrial units and public buildings.
Insulated Fire Glass (EI): Merthyr Tydfil questions
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Do you work on occupied buildings in Merthyr Tydfil?
Yes. We plan phasing, out-of-hours work and temporary protection so the building can stay in use where the fire strategy allows.
How quickly can you survey in Merthyr Tydfil?
Survey timing in Merthyr Tydfil 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 Merthyr Tydfil
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 Merthyr Tydfil 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 Merthyr Tydfil 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.
Complete and document
Work is completed to the manufacturer's details and documented for your records.