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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Mid Glamorgan · CF47
Fire-Resistant Glass across Merthyr Tydfil
From the CF47 district outwards, we arrange fire-resistant glass for buildings across Merthyr Tydfil, matching glass, frames and seals to tested evidence rather than guesswork.
E 30 – EI 120CF47Wales
Quote for Merthyr Tydfil
Tell us what you need. We reply with next steps and a guide price.
Fire-Resistant Glass in Merthyr Tydfil: 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 (E) glass: modified toughened, glass-ceramic and polished wired types
- Integrity with radiation control (EW) laminated glass
- Insulating (EI) intumescent-interlayer and gel-filled glass
- Intumescent glazing seals, tapes and gaskets to the tested specification
What to check before ordering fire-resistant glass in Merthyr Tydfil
Impact safety still applies
Glass in doors, side panels and low-level positions has to meet impact safety rules as well as the fire rating. Most modern fire glass carries an impact classification; old wired glass usually does not.
Can any fire glass go in any fire-rated frame?
No. A frame is only rated with the glass types and pane sizes it was tested or assessed with. We check the frame's evidence before quoting, and if the existing frame is unknown we say so and price the options.
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.
Which rules apply to fire-resistant 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.
Merthyr Tydfil coverage and nearby towns
Whether the building is in central Merthyr Tydfil or the wider CF47, CF48 districts, we can survey and quote. We also cover Aberdare, Rhondda, Ebbw Vale. Rhondda, around 11 km from Merthyr Tydfil, is the largest town in the same coverage area.
Fire glass in AberdareFire glass in RhonddaFire glass in Ebbw ValeFire glass in TonypandyFire glass in Pontypridd
How we work in Merthyr Tydfil
Wales rules applied
Designs follow the building and fire safety rules that apply in Wales, not a one-size-fits-all approach.
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
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.
Merthyr Tydfil building types
Sector guides below cover public buildings, schools and colleges and other buildings in Merthyr Tydfil.
Questions about fire-resistant glass in Merthyr Tydfil
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.
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.
Do you carry out fire-resistant glass in Merthyr Tydfil?
Yes. We survey and install in Merthyr Tydfil and across Mid Glamorgan, including the CF47 district and nearby Aberdare.
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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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.
Learn more →Process
From enquiry to handover in Merthyr Tydfil
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.