Rank: Super forum user 
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Good morning,
If one indeed on exists – could somebody kindly guide me to a document that provides guidance / information on the number of smoke detectors that are required considering the following ( low risk environment commercial and life safety only):-
- Use of room
- Size of room
Award of approved docs and such but something like a simple guide – there are a couple out there for domestic premises but I can find low risk commercial,
Thanks if anyone can help?
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Rank: Super forum user
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BS5839 should cover your issues
Or 112 square metres per device
SBH
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Rank: Super forum user
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Hi DP
What does your FRA say about smoke detector provision?
A blanket approach to even "low risk commercial" may not be adequate or appropriate - there are always areas where the detection cover is inadequeste or over-provided as square metreage by itself will only work for large open areas.
Also, Standards of this type are only advisory, not definitive.
Frank Hallett
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Rank: Super forum user
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Hi Frank
The FRA process I have inherited has taken a blanket approach and I have detection everywhere and in some cases unnecessary e.g. toilets / unoccupied sterile void space etc. – I’m trying to build a new spec going forward, to assist only - not to make the final decision – existing properties have been completed now so that’s history.
Completely understand your comments on FRA and each case merit – this will remain premises-by-premises – all properties are new and will go before Building Control but they are not to tell me we’ve over egged are they only under? Just looking for a simple tool to help get it right 1st time.
I have a meeting with building Controls Officer next week I’m just doing my prep. This will really help too.
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Rank: Super forum user
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i'm a little confused here DP!
Could I just confirm that you're referring to a number of existing and proposed units intended for low-hazard commercial use? There is a presumption in there that the units are essentially single level [possibly mezzanine floor inside each] and no other occupancy superimposed?
Incidentally, unoccupied spaces very often don't remain unoccupied or sterile once the tenant/occupier moves in - you may wish to consider that as well.
Do you have a copy of the Govt doc - Fire Safety Risk Assessment - ISBN-13: 978 1 85112 816 7 or ISBN-10: 1 85112 816 6
Originally available via the DCLG website: www.firesafetyguides.communities.gov.uk
Reference number: 05 FRSD 03338 (b)
Hope that helps
Frank Hallett
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Rank: Super forum user
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Frank – got everything I need from BS9999 – drop me a pm with you mobi and I’ll bell to explain I’ll be typing all day otherwise. Just spoke with two old mates both ex prosecutors for fire services – they have boxed me off.
Thanks for your help its appreciated, I’d be happy to discuss in more detail to throw some light on it and end your confusion.
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Rank: Super forum user
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Good to hear that you're sorted DP.
I didn't mention BS9999 as I thought that your comment "approved docs and such" included that.
Frank Hallett
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Rank: Super forum user
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Cheers frank - all sorted now.
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