10
Table 1* — Spacing for Vertical Obstructions
Figure 13
BB and HIP Sprinklers for Attics Greater
Than 60'
(18,3m)
and Equal or Less Than
80'
(24,4m)
Figure 14
If the attic has noncombustible insulation on the ceiling
below the attic sprinklers, the area of coverage is
measured from the top of the insulation.
Figure 15 — BB and HIP Sprinklers Plan View Perimeter Protection
Coverage by standard sprinklers
Max. 7' (2,13 m) on center
4 m)
6' (1,83 m)
o.c.
Plan View Parimeter Protection
60'
(18,23 m)
Start spacing
at 31' (9,45 m)
away from corner
10'
(3,05 m)
10'
(3,05 m)
Attic sprinklers in buildings over
60'-0"
(18,3m)
up to 80'-0"
(24,4m)
wide
Attic sprinklers in conjunction with standard sprinklers
can be used to protect attics over 60'-0"
(18,3m)
up to
80'-0"
(24,4m)
wide. Attics over 80'-0"
(24,4m)
wide must
use standard sprinklers throughout as attic sprinklers
have not completed testing in this scenario. To use
attic sprinklers in these attics, space attic sprinklers to
protect the center portion of the building, add standard
sprinklers around the perimeter at a maximum of 7'-0"
(2,1m)
and a minimum of 6'-0"
(1,8m)
on center. The
HIP™ sprinklers can continue down the hip. Start
spacing standard sprinklers 31'-0"
(9,4m)
away from the
corner.
Standard spray sprinkler
spaced 7'-0" (2,1 m) to
6'-0" (1,8 m)
on center
10' (3,05m)
Max.
60' (18,3 m) maximum for
Attic Sprinkler coverage
80' (24,4 m)
Attic Sprinklers
Standard spray sprinkler
spaced 7'-0" (2,1 m) to
6'-0" (1,8 m)
on center
10' (3,05m)
Max.
Width of Attic Sprinkler Spacing
Maximum Dimension
Minimum Horizontal
of Obstruction
Distance to Obstruction
1
⁄
2
"-1"
(12,7mm-25,4mm)
6"
(152 mm)
>1"-4"
(25,4mm-101,6mm)
12"
(305 mm)
>4"-8"
(101,6mm-203,2mm)
24"
(610 mm)
>8"-10"
(203,6mm-254mm)
5'
(1,5 m)
>10"-20"
(254mm-508mm)
10'
(3,0 m)
>20"-30"
(508mm-762mm)
15'
(4,6 m)
>30"-40"
(762mm-1016mm)
20'
(6,1 m)
>40"-48"
(1016mm-1219,2mm)
25'
(7,6 m)
>48"
(1219,2mm)
sprinkler required beyond
* When minimum horizontal distance is less than Table 1,
an additional sprinkler is required beyond the obstruction.
OBSOLETE
