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72 INTERIORS


Concealed door closers, which are hidden within the doorjamb, are a particularly popular choice, retaining the aesthetics of an interior whilst adhering to fire and accessibility regulations. This type of door closer also brings practical advantages including improved safety, through reducing the opportunity for the door closer to be vandalised or tampered with.


Safety and security


In commercial buildings such as offices, door closers are a key part of building security. While keypads or other devices can be added to lock doors, a closer will make sure that only people entering the building have access. Once the door closes automatically, unwanted intruders cannot enter the building. As specified by Approved Document B of the Building Regulations, a door closer must be fitted to any fire door to prevent the spread of flames and smoke in the event of a fire. The below checklist lists all of the essential components required to make a door closer on a fire door fully operational: • The closer must be CE marked, and as a minimum, it is recommended a power size of 3 is specified


• The door closer must fully close and engage the latch when the door is open to 5° or 75 mm


• The closer must be free from damage and not leaking


• The closing time of the door must be no longer than 25 seconds


• The door closer must be tested and CE marked in the position it is fitted


• If a concealed overhead door closer is used, it must also be fitted with the correct intumescent material.


Electromagnetic door closers are a particularly good choice when it comes to fire safety, providing a modern alternative. Some can be wired directly into a fire detection system, allowing doors to be held open for everyday use, but which will then close upon activation of a fire alarm. Door closers are a key consideration, especially when working on public building projects. Understanding the different types will enable you to choose the best solution and achieve the highest levels of safety and security.


David Saxby is senior category manager at IronmongeryDirect


Bespoke timber fire doors for commercial and residential spaces  Doorsets designed to suit your unique project


 Available in a range of facings, including laminate, veneer and specialist stains


 Includes an architectural ironmongery service  Dedicated specification team available to assist  Q-Mark fire door manufacture and installation


02392 389 076 | www.ahmarra.co.uk WWW.ARCHITECTSDATAFILE.CO.UK ADF JUNE 2019


FD30 | FD60 RATING


ACOUSTIC RATING


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