The Locksmith Journal Mar/Apr 2018 - Issue 55 | Page 18

18 • INDUSTRYNEWS PROUD SPONSORS OF THIS PAGE THE GAI GUIDE TO RETROFIT FIRE DOORS » » DOUGLAS MASTERSON, B.A.(HONS) DipGAI RegAI M.InstAI, technical manager at the Guild of Architectural Ironmongers (GAI), provides guidance on the current legislation relating to fire doors as well as some common retrofit mistakes and potential risks. EFFECTIVE FIRE DOORS BS 9999 contains the following significant comment on fire doors: “Doors in fire-separating elements are one of the most important features of a fire protection strategy . . .” Annex B of Approved Document B states: “Any test evidence [for] a fire door . . . should be carefully checked to ensure that it . . . is applicable to the complete installed assembly. Small differences in detail (such as glazing apertures, intumescent strips, door frames and ironmongery etc.) may significantly affect the rating.” We can therefore conclude that fire doors are specified and supplied to provide a quantifiable and predictable performance. This performance can be adversely affected by apparently minor changes. The correct fitting of door hardware is critical to a fire door’s performance. LEGISLATION Below is some of the legislation and guidance that applies when planning a new building or extension. Those involved in its design and construction will be governed by Building Regulations. These are regional, and might vary in detail, but in all cases, the building must offer safe and immediate escape in case of fire. The following are documents used in England and Wales: • Approved Document B (ADB): Fire safety • Approved Document 7: Materials & workmanship • BS 9999: 2017: Code of Practice: Fire safety - design, management & use buildings After the building is occupied, the following legislation applies: • Building Regulations - the management must maintain the standards which were in place at planning permission as a minimum. • Regulatory Reform (Fire Safety) Order 2005 - a Responsible Person must organise a fire risk assessment. • Health & Safety at Work etc. Act - employers must look after the welfare of employees and visitors, including the provision of safe egress. MODIFICATION OF FIRE DOORS The Fire Safety Order states that when a new building is handed over, or an existing building undergoes a change of use, the “Responsible Person must ensure that . . . any facilities, equipment and devices provided . . . are . . . maintained in an efficient state, in efficient working order and in good repair.” This applies to fire doors and their hardware: hinges, closers, locks and latches, and perimeter seals. Common unauthorised modifications include: • Pushbutton locks being fitted onto fire doors without fire test evidence and without intumescent protection, therefore compromising the integrity of the fire door. • The pushbutton lock often introduces a second level handle on the door, thereby failing to comply with the recommendation of one hand movement only to open a door on an escape route (referenced in Approved Document B). • Electro-magnetic locks where the armature plate is usually bolted through door being fitted without fire test evidence. This still needs test evidence if it is only screw-fixed. There is also the issue of wiring being LOCKSMITHJOURNAL.CO.UK | MAR/APR 2018 Sponsored by Lockex 2018 - Security & Fire Safety drilled through the frame • Where electrically released strikes are used, a chunk of material is taken out of the frame. There must be relevant fire test evidence for these products, together with details of any intumescent protection needed. The fitting of door hardware with no test evidence constitutes: • Unauthorised modification of fire protection equipment. • A fire door that is no longer “as tested” therefore of unknown and potentially compromised performance. • Nullification of any 3rd party certification for the door. DOCUMENTARY EVIDENCE REQUIRED Extra items can be retrofitted if: • There is fire test evidence for the door with product fitted, or • There is fire test evidence for the product on a very similar door, or • There is an assessment by a competent authority, based on test evidence. SPECIALISTS Qualified architectural ironmongery specifiers such as GAI Diploma holders (DipGAIs) and Registered Architectural Ironmongers (RegAIs) are essential when it comes to the correct specification of hardware for fire door assemblies, both in installation and retrofit scenarios. They will work to ensure fire door hardware is standards-compliant and appropriate. They will check performance classifications including CE marking; fire test evidence and its applicability; and relevant 3rd party certification offering Factory Production Control (FPC) and audit testing. This is highly critical, detailed work and needs to be done by trained specialists. WARNING Always remember that fire doors are an essential part of a building’s passive fire safety strategy. They are highly engineered fire protection products and therefore must be treated with respect. Fire doors - when correctly specified, fitted and maintained - save lives!