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Posted By David White
Can someone please tell me the minimum distance allowed from the end of a building/room which only has one entry/exit?.
I know thier is a minimum distance but can not recall it, or find it in my literiture.
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Posted By Ed Carter
David as far as I remember, and dependant on circumstances such as numbers of persons etc. it is;
maximum direct distance from any point in a room to room exit 12m
maximum distance between fire doors in a corridor 30m
Unprotected corridor: maximum distance room exit door to protected route/stairway 18m
maximum direct distance from any point to protected lobby/stairway alternative exits or final exit 30m
Protected corridor:30m
any point to lobby/staircase, alternative exits final exit 42m
(Source Building Bulletin 7)
Hope this is of help.
Ed
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Posted By Charles New
According to 'Fire safety and employers guide', it depends on the nature of the premises and the risk. It goes on to say that the length of the escape route from any occupied part of the workplace to the storey exit should not exceed....
where more than one route is provided;
25m - high fire risk area
32m - normal fire risk (sleeping) area
45m - normal fire risk area
60m - low fire risk area
where only a single escape route is provided;
12m - high fire risk area
16m - normal fire risk (sleeping) area
18m - normal fire risk area (except production areas in factories).
25m - normal fire risk area (including production areas in factories)
45m - low fire risk area
hope this helps
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Posted By David White
Thanks very much Ed, much appreciated.
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Posted By Ed Carter
David,
Charles is quite right in the high number of things the final figure is dependant on.
But speaking generally, and for industrial premises the 2000 Regs give one escape route 25m
more than one escape route 45m
Ed
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Rank: Guest
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Posted By Ken Taylor
The principle in operation here is that (as per Approved Document B to the Building Regulations) direct distance is to be taken as 2/3 travel distance when layout and fittings are unknown. Table 3 of B1 gives maximum distances for a range of types of premises for both single direction and more than one direction of travel. Generally for one direction these range from 9m for institutional, bedroms and places of special fire hazard through 18m for offices, shops, commercial, schools,recreation, etc to 25m for industrial and storage premises. It is also notable that BS5588 Part 11 may be used instead for new defined small workplaces. If still in doubt after reading the literature, a question to the local fire officer would be advisable!
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