Automist Smartscan
®
Handbook v1.2.3
Plumis Ltd Copyright © 2017. All Rights Reserved.
Page 63 of 64
S MA RT SC AN
®
Application of Automatic Water Fire
Suppression Systems (AWFSS)
Subclause in
BS 9991:2015
Watermist system
conforming to
BS 8458-1
Multi-basement buildings
5.2.1.2
d)
Applicable
Houses with one floor more than 4.5 m above
ground floor level
6.3
c)2)
Applicable
Houses with more than one floor
above 4.5 m
6.4
b)
Applicable
Loft conversions
6.5
,2)
Applicable
Internal planning of flats and maisonettes
9.1
d)
Applicable
Provision of inner rooms in flats not
more than 4.5 m in height
9.3
b)
Applicable
Extended travel distances within an
open-plan flat
9.4.2
a)
Applicable
Extended travel distances within a
flat entered from a floor below the flat
9.4.3
a)
Applicable
Maisonettes having a floor level higher
than 4.5 m above access level
9.5.2
d)
Applicable
Open-plan flats
9.7
Applicable
Flats where occupants are not capable of
independent evacuation
11.1
Applicable
Common areas (excluding common
corridors and staircases) where occupants are
not capable of independent evacuation
11.1
Applicable
Table 4: BS 9991 Applicable applications of
Watermist Systems
Application of Automatic Water Fire
Suppression Systems (AWFSS)
Subclause in
BS 9991:2015
Watermist system
conforming to
BS 8458-1
Extended travel distances in common corridors
7.4
/
11.2
Not applicable
Increased travel distance within cluster flats
9.8.1
Not applicable
Buildings over 30 m
11.1
/
16.2.2
Not applicable
Reduction in periods of fire resistance
Table 4
Not applicable
External fire spread and doubling
unprotected areas
18.4
e)
Not applicable
Where buildings are not provided with fire
mains
50.1.2
Not applicable
