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Trinnie

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  1. Hi, I am a fire risk assessor that has always been of the opinion that an interlinked fire alarm system (between flats and commercial units) is not necessary in a mixed use property that has been constructed to current or post 1991 building regs - if no escape routes are shared. However recently I have come across two new build blocks that have commercial units on the ground floor, and flats on upper floors - sharing an escape route ( the commercial units are in a protected ground floor area, exiting via the protected stairwell at ground floor level. The route to the apartments (on the upper four floors) is protected from the stairwell by a 60 minute fire door in one block - and in the other block no separation is provided i.e the ground floor has a single 30 minute door to the commercial space and then the stairwell to the first floor flats is open. Both blocks are armed to the teeth with fire detection and warning systems that are interlinked between both residential and commercial. My question is - how would another assessor advise in relation to stay put and detection within the residential areas in these circumstances? My gut feeling is retain the stay put and remove the audible alarm for the residential areas. The amount of coverage necessary for the commercial units is subject to their own risk assessment...other views appreciated. Many thanks. Trinnie
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