BESA has issued an interim technical bulletin ahead of a full update of its industry guidance for the 鈥業nstallation of Fire Dampers and Smoke Dampers鈥� (DW145), set to be launched at the association鈥檚 national conference in October.
BESA said that it was producing an interim announcement because of 鈥渢he urgent nature of the problem鈥� exposed by annual inspections carried out by maintenance contractors. They found that 鈥渁 huge number of dampers鈥� had been incorrectly installed.
Head of technical Graeme Fox explained that many did not comply with manufacturers鈥� instructions and needed remedial action 鈥渨ithout delay鈥�.
He said: 鈥淲e have been alerted to the very dangerous practice of using self-drilling 鈥榯ek鈥� screws which do not melt when temperatures rise during a building fire. This means spring-loaded dampers will not be released to contain the spread of fire within the zone and ensure the integrity of the fire stopping measure.鈥� 聽
He added: 鈥淒ampers must be secured by fusible fixings that allow the duct to break away otherwise the collapsing duct could pull the damper out of place and break the seal between the fire zones.鈥�
The provides contractors with the information require to alert clients to the problem.
The bulletin also updates the guidance and statutory requirements covering installation, testing and maintenance of fire dampers and smoke dampers including clients鈥� legal obligations to ensure their fire safety systems remain fit for purpose in line with the Regulatory Reform (Fire Safety) Order 2005 for England and Wales and the Fire Safety (Scotland) Regulations 2006.
鈥淲hile this is clearly a very worrying situation, we can take some reassurance from the fact that this problem is being brought to our attention by the increasing frequency of fire damper inspections and tests as awareness grows of this extremely important issue,鈥� Graeme Fox said.
鈥淲e would urge contractors to alert their clients immediately so all the necessary checks and repairs can be carried out.鈥�
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