46.02
16397 Rev A Updated 03/2021 © 2021 Victaulic Company. All rights reserved.
5.0 PERFORMANCE (CONTINUED)
Hydraulic Design
Single Slope Roof Calculation Procedure
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.
Single Slope Roof Calculation - Wet System
1: Row Protection
• Calculate the most hydraulically demanding 5 contiguous DS sprinklers. See Figure 21A.
• Minimum sprinkler flow is 20 gpm per sprinkler.
2: Row Protection
The following 2 sets of calculations shall be performed:
• Calculation #1: Calculate the most hydraulically demanding 5 contiguous sprinklers consisting of 3 at the high
point and 2 on the adjacent slope. See Figure 21B.
• Calculation #2: Calculate the most hydraulically demanding 5 contiguous sprinklers along the high point. See
Figure 21C.
• Minimum sprinkler flow is 20 gpm per sprinkler.
FIGURE 21A
1 ROW PROTECTION CALCULATION
FIGURE 21B
2 ROW PROTECTION CALCULATION #1
FIGURE 21C
2 ROW PROTECTION CALCULATION #2
FIGURE 21: HYDRAULIC CALCULATIONS REQUIRED FOR WET SYSTEM
SINGLE SLOPE DESIGN
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