46.03
16398 Rev B Updated 04/2021 © 2021 Victaulic Company. All rights reserved.
5.0 PERFORMANCE (CONTINUED)
Sprinkler Selection
Gable Style Roof Option 1:
FL-SA/BB Sprinklers Only at Gable/Peak
• When utilizing this option, Model FL-SA/BB sprinklers
are used to protect the entire width of the attic space.
The span of the attic is measured along the floor (or
ceiling of floor below) of the attic space from the peak
to the intersection of the top chord and bottom chord
of the roof trusses. See Figure 5a and Figure 5b.
The span is twice the longer of the two measured
half spans.
• The maximum span that can be protected by a single
line of FL-SA/BB sprinklers at the peak is 60 ft.
• See minimum required flow rates and pressures for
spans up to 40 ft. and spans over 40 ft. and up to
60 ft. is shown in Table 2 of this data sheet.
• See Figure 9 for detailed layout criteria.
TRUSS MEMBERS MUST BE
PARALLEL WITH DIRECTION
OF THROW OF FL-SA/BB
SPRINKLERS
FIGURE 5A
Gable Style Roof Option 2:
FL-SA/BB Sprinklers And FL-SA/GAP Sprinklers Adjacent
• This option utilizes the FL-SA/BB sprinklers at the
Gable/Peak and FL-SA/GAP sprinklers at the eave
areas. With this option, a maximum total span of
84 ft. can be achieved. The FL-SA/BB may cover a
maximum horizontal span of 60 ft. as stated in
Option 1 above. GLSS/ GAP sprinklers may be used
in conjunction with the FL-SA/BB sprinklers to achieve
up to an additional 12 ft. measured horizontally to each
eave. It should be noted that the "zone of coverage"
for the "GAP" sprinklers is only measured from the
centerline of the sprinkler to the eave. No credit for
coverage "upslope" can be assumed.
• See Figure 9 and Figure 10 for detailed layout criteria.
TRUSS MEMBERS MUST BE
PARALLEL WITH DIRECTION
OF THROW OF FL-SA/BB
SPRINKLERS
FIGURE 5B
FIGURE 5: PROTECTION OPTIONS
FL-SA/BB
FL-SA/GAP
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