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Fire


Enquire: www.dcep.co.uk Tel: 01630 673000 Fax: 01630 673247 Email: dce@directcontact.demon.co.uk Post: use the Enquiry Sheet


Total Design Solutions Fire Stop + Smoke Stop + Acoustic Stop + DPC


Every building that is divided into more than one area of different occupation must be designed and constructed in such a way that in the event of an outbreak of fire within the building, fire and smoke are inhibited from spreading beyond the area of occupation where the fire originated (2.2BR(S) - mandatory)


Cavi 60 Type SAF Stop. Cavi 60 denotes 60 minutes fire integrity rating


Maintaining a clear cavity is the usual objective when constructing a cavity wall, but there are occasions when doing the opposite is required if the structure is to satisfy several requirements.


Cavity stops of various styles are produced for installation horizontally and vertically. Passive rectangular profiled stops close the cavity permanently. Intumescent stops leave the cavity partially open and rely on heat to activate closure.


But now there is a third type of cavity stop that offers benefits not available with these alternatives.


The Type SAF cavity stop from Cavity Trays of Yeovil is a passive parallelogram stop that provides both fire-stopping and acoustic arrestment within the cavity. Where Part E requirements call for buildings to have both fire and acoustic stop provision, a Type SAF stop can be used to fulfil both functions in one product installation. The need to have separate acoustic stops with separate traditional or intumescent stops is eliminated. One operation and one cost.


Being a permanent passive barrier means it is in place to also prevent the spread of smoke that generally manifests and can be drawn through cavities in advance of heat and fire. (Statutory regulations state that smoke must be inhibited from spreading beyond where a fire originates).


The sloping lap can maintain smoke, fire, acoustic and water barrier properties


Parallelogram profile of multi-functional cavity stop


The parellelogram profile with a sloping top and sloping bottom is used to advantage. The shape can act as its own dpc/deflector and any water penetrating the masonry above is naturally drained forward. Unlike traditional cavity stops, the angled top guards against water tracking towards the inner skin as there is no horizontal surface to be used as a bridge.


It makes sense to amalgamate rather than have separate acoustic and separate fire stops in a wall. The Type SAF (sloping + acoustic + fire - hence its name) shape also permits adjoining lengths to simply lap either above or below a neighbouring length and in so doing the sloping advantage, the acoustic advantage and the fire and smoke qualities are maintained. Concerns about continuity with end to end butting need not arise.


The Type SAF is passive and not reliant on activation to change shape to function. Its shape and purpose remain unaltered. One knows its presence is as installed and passive containment is fully in place to prevent smoke, heat and sound journeying through the cavity.


Reader Enquiry: 61 www.cavitytrays.co.uk 01935 474769 Essential advice from Fire Protection Limited


Fire-resistant ductwork systems manufacturer, Fire Protection Ltd (FPL) has released a new Guidance Note for Specifiers and Purchasers of Fire Rated Duct Systems.


Bringing together all of the relevant guidance on fire resistant ductwork, the guide is an essential tool for anyone involved in the design, specification, purchase, maintenance and management of such systems.


The 44-page guide introduces the regulations and standards that apply and provides additional information and comment to assist users in specifying and purchasing the correct fire resistant duct system for every application.


GUIDANCE NOTE


For Specifiers and Purchasers of Fire Rated Duct Systems


Arranged in eleven short chapters, the guide provides an introduction to the legal requirements of the Responsible Person, introduced under Regulatory Reform (Fire Safety) Order 2005, as well the guidance outlined in Approved Document B to the Building Regulations 2000.


It also explains the recommendations of various standards including BS 9999:2008: Code of Practice for fire safety in design, management and use of building; BS 476: Part 24:1987; ISO 6944: 1985 and the Association for Specialist Fire Protection Blue Book - Fire Resisting Ductwork.


In addition, the guide provides an introduction to the Construction Products Directive (CPR), which will apply from the 1st July 2013. This


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will result in mandatory CE marking of fire-resistant ducting and introduces a new testing regime. The product construction and testing standards that will apply are clearly described.


This essential guide is completed by a useful checklist to help specifiers and purchasers of fire resistant duct systems ensure at a glance that they have considered all the necessary recommendations when making their product choice.


Fire Protection Ltd is a leading specialist ductwork manufacturer. It offers a range of passive fire resistant products, including the fire- resistant ductwork system, Flamebar BW11. Established in 1993, the company is recognised not only for its expertise in ductwork engineering and fire resistant coatings, but also for its knowledge of fire safety engineering and fire safety standards and specifications.


Reader Enquiry: 62


www.fireprotection.co.uk 01279 634230


Type SAF Stop  Permanent profile  Acts as acoustic stop  Acts as one hour rated fire stop  Smoke spread prevented at all times


 Integrity maintained via lap linking lengths


 No activation and shape change required to function


 Shape deflects water forward to prevent bridging to inner skin


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