Gallons Per Square Foot Of Roof

So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall.

Gallons per square foot of roof.

Of water 231 sq in. Where rainfall rate is expressed in inches per hour and roof area is given in square feet. 5 ft 2. Sq ft safe for maximum rainfall reduce by 10 per 90 degree turn.

To calculate the runoff from any given rainfall. To a depth of 1 in 1 hour. Or 0312 gallons per minute sq. The answer is about 623 gallons.

Rainwater can be collected from the roofs using the rain water harvesting method. Of water in a gallon 0 623 gallons per hour. Max area of roof draining to one down. 1 us gallon 231 cubic inches.

Take a guess what is the volume of water that runs off a 1 000 square foot roof during a 1 rain storm. Roof area square feet per linear ft of gutter underneath. Converting this to gallons per minute per square foot gpm ft 2. 4 ft 2.

1 inch of rainfall in an hour will cover 1 sq ft. Up to 6 12 7 12 8 12. Code to add this calci to your website. Roof area the 3 inch rainfall will produce 18 700 gallons in one hour at the rate of 312 gallons per minute.

Take the dimensions of the footprint of your roof and convert them to inches.