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Fire classification is a system used to categorize the level of fire resistance of materials or products. The most common classifications include Class A, B, C, D, E, and F. In addition to the Class rating, suffixes or codes are used to indicate additional properties of the material, such as smoke production or burning droplets during a fire.
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EI60 and EI120 indicate the time period a building component can resist fire. OBEX has conducted the world’s first fire tests on SFS through-wall constructions with breather and VCL membranes, obtaining fire ratings for the entire system.
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EPDM is a synthetic rubber material used in roofing, waterproofing, and sealing applications. It is not recommended for facades of buildings above 11m as it has a Class E fire classification, which is not considered low combustibility. Regulation 7 requires a minimum fire classification of Class B-s3, d2 and recommends Class A2-s1, d0 for facades materials.
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The FIS Best Practice Guide provides comprehensive guidance on the installation of steel-framed infill panels in masonry walls. It covers all aspects of the design and installation process, including materials, structural performance, fire safety, and weather resistance. The guide is an essential resource for building professionals.
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The regulatory requirements that need to be met when specifying and installing façade membranes are set out in Regulation 7 of The Building Regulations 2010, including the necessary fire classifications. Approved Document B is a government document that provides clarity on how to achieve compliance with the Regulations.
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The Building Safety Act is a UK law designed to improve the safety of high-rise buildings following the Grenfell Tower fire. It sets out new responsibilities for building owners and managers, introduces a new regulatory framework for building safety, and establishes a new Building Safety Regulator to oversee compliance.
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Breather membranes are vital in building envelopes, allowing vapor to escape whilst preventing water entry. W1 is used for open applications, W2 for protected ones. W1 is more stringent, requiring testing under driving rain, whilst W2 does not test under dynamic wind loads.
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