Roof Drainage Capacity Calculator
Calculate the required roof drainage capacity in gallons per minute based on rainfall intensity.
Drainage Required
35.3 GPM
Cubic Feet/Sec
0.0787
Gallons per Hour
2,119
Calculate the required roof drainage capacity in gallons per minute based on rainfall intensity.
Drainage Required
35.3 GPM
Cubic Feet/Sec
0.0787
Gallons per Hour
2,119