Rooftop Guttter Capacity.xlsx

WAREHOUSE GUTTERS

R5-R10 Top Width B = 365mm

Roof Top Drainage B = Average width of gutter in (m) B = 0.3605 m D = 145mm D = Average depth of gutter in (m) D = 0.10275 m M = depth/width of gutter Bottom Width B = 356mm M = 0.285021 I = Maximum rainfall intensity in (mm/hr) I= 125.7 mm/hr W = width of area being drained in (m) W= 22.5 m C = roof slope constant, 1 in 10 C= 1 A = Area of downspout in (cm ). Internal diameter of the downspout pipe is 200mm 2

A = 314.1593 cm2 Gutter Capacity

Ds=

17.70

18.00 m

Downspout Capacity

Ds = 48.87 m Therefore the downspout 200mm diameter pipe will be having the capacity to collect up to 48 m distance. but proposed gutter is having capacity to carry upto 18m The proposed distance between the downspout is 18m

D = 104mm

m distance.