Fire safety is a top priority for any workplace or building that is used by the public. Stringent building regulations are in place to ensure the safety of employees, visitors and members of the general public. If a fire should occur, the building fabric should offer the necessary protection (fire rating) to allow people sufficient time to safety exit the building.


Whether a specific wall should be fire rated – i.e. resist the progress of fire or heat – or not, is a Building Regulations issue. Your local Building Control Officer will be able to advise what the legal requirements are and the level of performance required. iSteel cannot provide advice on this, but we can provide a solution for fire rated screens once you know what you need.

Fire Ratings

Performance classification of fire ratings is detailed in the the European standard EN357 and consists of two main elements:

  • Fire Integrity – providing a physical barrier to restrict the progress of fire, hot toxic gasses and smoke from one side of the partition to the other, to help minimise building damage.
  • Fire Insulation – limiting the transfer of heat from one side of the partition to the other, which could otherwise cause ignition of materials on the non-fire side.

Partitions may be rated for Integrity only (E), or for Integrity and Insulation (EI), with numbers to denote the minutes of protection.



  • E30 provides 30 minutes of integrity protection. This is often shown as 30/0.
  • EI30 provides 30 minutes integrity and insulation protection. This is often shown as 30/30.
  • E60 provides 60 minutes of integrity protection. This is often shown as 60/0.
  • EI60 proves 60 minutes integrity and insulation protection. This is often shown as 60/60.

Both elements are designed to protect life as well as the building fabric, providing more time for the building to be safely evacuated. Fire rated partitions and fire screens are therefore most often required along escape routes, corridors or common areas. Advice should be sought from your local Building Control Officer. Once you know the level of performance (fire rating) that is required, please contact us for a quotation.


We are delighted to announce that iSteel (Symphony Services Ltd t/a) is FIRAS certified for fire rated glass products. Here at iSteel, we have always taken great pride in the high standards of service that we provide to our clients and we have received many 5-star reviews for the quality of our work in supplying and installing glass all around the UK.


FIRAS is a third party certification scheme for companies who install both passive and active fire protection systems. Started in 1994 FIRAS Certification has been instrumental in improving standards of installation of fire protection products and systems. This offers many benefits to the construction industry and clients alike. FIRAS Certificated Installer Companies are subject to ongoing random inspection of their installation work. There is also an annual audit of their office systems by FIRAS Inspectors to ensure that compliance with the Scheme is maintained.

If you require any fire rated glazing, iSteel can offer the best products and services with assurance that what is being offered is correct, safe and certified.

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