BB100 Sub-division of Corridors

[TallyHo]

BB100 states that every corridor more than 12m long which connects two or more storey exits should be sub-divided by a self-closing fire door(s).

This seems to contradict the DCLG Educational Premises Guide which states; If your premises has corridors more than 30m long, then generally these corridors should be subdivided near the centre of the corridor with fire doors.

Can anyone shed any light on why there is a difference between the two documents?

[nearlythere]

BB100 states that every corridor more than 12m long which connects two or more storey exits should be sub-divided by a self-closing fire door(s).

This seems to contradict the DCLG Educational Premises Guide which states; If your premises has corridors more than 30m long, then generally these corridors should be subdivided near the centre of the corridor with fire doors.

Can anyone shed any light on why there is a difference between the two documents?

Too many guide scribes. It always has been a problem with guidance documents. Too many organisations want to be Fire Safety national guide writers.
BB100 is a document by Dept of Education. I am inclined to stick to documents listed by Fire Service as point of reference for completion of FRAs. These tend to be those issued by DCLG.

[facades]

BB100 is a design guide aimed at new and/or extended schools, although it doesn't cover all buildings, and is based on the requirements of ADB, whereas the CLG Guide for educational premises (as with all the CLG guides) is aimed at existing buildings.

[TallyHo]

Thanks for the posts more information here

http://fire.org.uk/forum/index.php?topic=5014.0

[jokar]

Simple answer, BB100 is a design guide for new premises and alterations and extensions to existing buildingsas is ADB and the CLG guide is for risk assessing existing premises.

[TickityBoo]

The Scottish fire safety guides use 12m as the benchmark and these guides are for existing buildings.

[colin todd]

Ticky? Are you still doing fire safety, or are you going to apply for the Chief's job in the all one big happily family Scottish national fire and rescue service.