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Occupancy category C.1: long term occupancy, non-managed Atrium/accommodation method of separation

Enclosed: 60 min fire-resisting (integrity and insulation) and smoke retarding

Means of escape provision

Evacuation strategy. Individual occupancy Smoke control system

Smoke clearance Where accommodation storeys are not more than 4.5 m above ground level, each dwelling should have a window or door through which escape could be made independent from the atrium Smoke clearance Where accommodation storeys are more than 4.5 m above ground level, each dwelling should be provided with an internal protected escape route or an external escape route direct from the accommodation

Occupancy category C.2: long term occupancy, managed

Enclosed: 60 min fire-resisting (integrity and insulation) and smoke retarding

Where accommodation floors are Smoke clearance not more than 4.5 m above ground level, each dwelling should have a window or door through which escape could be made independent from the atrium Smoke clearance Where accommodation storeys are more than 4.5 m above ground level, each dwelling should be provided with an internal protected escape route or an external escape route direct from the accommodation

Associated areas sprinkler system

Fire alarm and warning system

Use of atrium base

Exemplar

No

Appropriate for No control the equivalent required non-atrium building

17

No

Appropriate for No control the equivalent required non-atrium building

18

Section 5

Š BSI 8 December 2004

Table 3 — Occupancy category C: occupants who are likely to be asleep

Evacuation strategy. Individual occupancy

No

Appropriate for No control the equivalent required non-atrium building

17

No

Appropriate for No control the equivalent required non-atrium building

18

BS 5588-7:1997

39

Bs 5588 71997 fire precautions in the design, construction a  
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