Gallons Per Square Foot Of Roof

Where rainfall rate is expressed in inches per hour and roof area is given in square feet.

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. 4 ft 2. To a depth of 1 in 1 hour. Max area of roof draining to one down.

Roof area the 3 inch rainfall will produce 18 700 gallons in one hour at the rate of 312 gallons per minute. Roof area square feet per linear ft of gutter underneath. Up to 6 12 7 12 8 12. The answer is about 623 gallons.

1 inch of rainfall in an hour will cover 1 sq ft. Sq ft safe for maximum rainfall reduce by 10 per 90 degree turn. The collectable rainwater from the roof can be calculated in gallons using this calculator based on the rainfall and area. 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. Converting this to gallons per minute per square foot gpm ft 2. Take the dimensions of the footprint of your roof and convert them to inches. To calculate the runoff from any given rainfall.

Code to add this calci to your website. For example a 3 inch per hour rainfall will build up to a 3 inch depth on a flat roof in one hour at the rate of 1 87 gallons per hour sq. Or 0312 gallons per minute sq. Using a 10 000 sq.

Of water 231 sq in.