030 GGP 0113

GGP JAN 2013

HARDWARE&SECURITY Hidden assets The Guild of Architectural Ironmongers (GAI) members produce, distribute and specify door hardware for commercial, residential and public sector projects. Concealed door closers are one of the items they are most often asked about. Here, Philip Gallagher from GAI member, Astra Door Controls, runs through some of the most frequently asked questions. GGP: Where can concealed closers be used? Are do I maintain them once they’re fitted? they just for residential projects? Gallagher: Most door closers are all tested to Philip Gallagher. Gallagher: Although concealed closers are most half a million cycles on specially designed test often associated with domestic doors on rigs and some manufacturers, like Astra, are so apartment entrance doors, they do, in fact, have confident in their reliability that they offer a much wider uses in commercial settings too. In 10 year guarantee. In fact, we have been fact a concealed closer can be used on any door manufacturing our Gibraltar range for nearly with a light to medium traffic flow. If you’re 50 years and we know of several closers that unsure contact your supplier but as a rule of are still operating very successfully after 30 thumb, they can be used in many of the years’ use. In terms of maintenance, concealed applications where overhead closers are used. closers require little or no maintenance. In GGP: Can concealed closers be used on fire doors? fact, because they are concealed in the door Gallagher: In short, yes. They can be fitted on leaf, they are less likely to be damaged, 30 and 60 minute fire rated doors but the closer vandalised or stolen so are more likely to give should be CE marked (where applicable) and fire years of trouble free operation than their tested in accordance with BSEN 1634-1:2000 and overhead counterparts. BSEN 1634-1:1999 and it goes without saying GGP: Why should I choose a concealed closer that they must conform to the fire test evidence above an overhead version? for the door they are fitted on. Gallagher: The most obvious reason is GGP: I’m confused about what size closer to use. aesthetics. Quite simply a concealed closer Gallagher: This is probably the single most looks better. As reliable and less prone to Controlled door closing devices. commonly asked question at Astra. Just like damage than overheads, concealed closers are • CE Marked under the Construction Products overhead closers, the size you need depends on virtually maintenance free. Of course the issue of Regulations to EN 1154. the size and weight of the door and where it will cost can’t be ignored. A quality concealed closer GGP: If I use a concealed closer, does that be installed – wind force and fire rating may is extremely competitive against its European preclude using other hardware on the hinge edge need to be taken into account, for instance. manufactured overhead equivalent. of the door? Bearing in mind the age and ability of the users, GGP: What are the UK standards I need to look Gallagher: No. It is still very possible to use it is important for the closer to be ‘suitable and for with concealed closers? hardware like continuous hinges or finger guards sufficient’ for practical everyday use. Fire safety is Gallagher: • EN1634 – 1: Fire resistance and on the hinge edge of the door, even with a vital but safety in use is also important. All the smoke control tests for door, shutter and concealed closer in place. reputable closer companies will be happy to help openable window assemblies and elements of with calculations and sizing queries. building hardware. For further information, visit the website: GGP: How reliable are concealed closers and how • BS EN 1154:1997 Building hardware. www.gai.org.uk 3000 Series closer. 30 January 2013 Glass & Glazing Products


GGP JAN 2013
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