
46.03
16398 Rev B Updated 04/2021 © 2021 Victaulic Company. All rights reserved.
5.0 PERFORMANCE (CONTINUED)
Hydraulic Criteria for Single Slope with FL-SA/DS Sprinklers Dry System Only
When a single slope roof area exists, the following calculation procedures shall be followed to size piping to the
sprinklers protecting this area. NOTE: Single Slopes (with vertical shear walls) result in different fire dynamics than
might be seen with gable and/or hip roof construction.
1 Row Protection
• Calculate the most hydraulically demanding 7 contiguous DS sprinklers. See Figure 25A.
• Minimum sprinkler flow is 20 gpm per sprinkler.
2 Row Protection
The following 2 sets of calculations shall be performed:
• Calculation #1: Calculate the 7 most hydraulically demanding contiguous DS sprinklers located along the high
point (peak). See Figure 25B.
• Calculation #2: Calculate the 7 most hydraulically contiguous DS sprinklers consisting of 5 DS at the hight point
(peak) and 2 DS sprinklers on the adjacent downslope branchline. See Figure 25C.
• Minimum sprinkler flow is 20 gpm per sprinkler.
FIGURE 25A
1 ROW PROTECTION CALCULATION
FIGURE 25B
2 ROW PROTECTION CALCULATION #1
FFIGURE 25C
2 ROW PROTECTION CALCULATION #2
FIGURE 25: HYDRAULIC CALCULATIONS REQUIRED FOR DRY SYSTEM SINGLE SLOPE DESIGN
23