2 minute read
CONSTRUCTION PRODUCTS GROUP
in accordance with the standards approved by several independent laboratories. These reports must follow EN 135012 standard and normally include the following information: an explicit description of the product or material, its classification, expected performance, and the field of application.
For fire stopping products, the classification is expressed in terms of EI, where ‘E’ stands for integrity and ‘I’ stands for insulation. In regards to integrity, the term demonstrates that flames or hot gases cannot physically pass through the surface from one side (the side exposed to fire) to the other side (nonexposed to fire) through holes, gaps, and service openings, showing its ability to contain the fire.
The ETA
The ETA is established by the Construction Product Regulation and issued by a Technical Assessment Body (TAB) upon the request of a manufacturer using a European Assessment Document, which is the basis for writing an ETA.
Providing effective fire protection
Effective fire protection can only be achieved with a combination of both Passive Fire Protection and Active Fire Protection systems – these are not alternative systems but complementary ones. This approach is the best chance that occupants have to exit the building safely and minimise its damage.
The importance of technical support and early involvement
Eintegrity is described in terms of the time taken to fail due to fire exposure. It means that, while testing pipe penetration seals in the uncapped situation on the unexposed side, the end of the integrity for the related seal is realised by the ignition of a cotton pad.
Regarding insulation, the product should be able to withstand fire exposure from the fire side to the nonfire side without transmitting heat. This classification is measured by an accredited facility and described in terms of time taken to failure. The failure criteria of insulation are typically a rise in temperature exceeding 180°C across the seal, or integrity failure.
The above means, testing in the laboratory, thermocouples are placed in different key locations of the seal and, as soon as the temperature goes over 180°C plus the ambient temperature related to once specific seal, the insulation of the related seal has failed.
We all know that most of the time Passive Fire Protection is considered and carried out too late in the designbuilding process. Fire resistant sealing, for instance, should be planned in the initial stages to avoid unplanned costs, time losses and ensure compliance.
By engaging your manufacturer at the briefing and design stage, architects, specifiers and main contractors can be assured that compliance and a golden thread approach will be easier to achieve. At Nullifire, you will find a specialist team keen to support you from the design stage, build and installation process, right through to inspections and maintenance. Our goal is to help ensure that a project has been completed correctly, but most importantly that the building and its occupants are safe from fire.
www.cpg-europe.com
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