8 SMOKE COMPARTMENT

8.1 Buildings without Mezzanine Floors
8.1.2 Where required smoke compartments should have
a maximum area of 2000m² for life safety
purposes to 3000m² for other purposes with the
latter used only in exceptional circumstances
(see Appendix 2 Reference 8).
8.1.2 When used for personnel protection the maximum
length of any side of a smoke compartment in the
direction of escape should be 60.0m
(see Appendix 2 Reference 6).
8.1.3 Smoke curtains should terminate 500mm below the
design smoke layer base.
8.2 Buildings with Mezzanine Floors
8.2.1 Where reservoir limitations are required below
the mezzanine as part of the design, the
parameters given in 8.1 above should be applied.
When the design philosophy applied is to allow
the smoke to spill into an adjoining area, care
must be taken not to exceed the total reservoir
size of 2000 to 3000m² maximum.
The size of the reservoir is the combined total
of the under mezzanine floor smoke control zone
plus the area of the smoke control zone into
which the smoke is designed to flow.