Gallons Per Square Foot Of Roof

The answer is about 623 gallons.

Gallons per square foot of roof.

Code to add this calci to your website. Sq ft safe for maximum rainfall reduce by 10 per 90 degree turn. 1 inch of rainfall in an hour will cover 1 sq ft. Max area of roof draining to one down.

Of water 231 sq in. Take a guess what is the volume of water that runs off a 1 000 square foot roof during a 1 rain storm. 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. Up to 6 12 7 12 8 12.

Converting this to gallons per minute per square foot gpm ft 2. To calculate the runoff from any given rainfall. So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. 1 us gallon 231 cubic inches.

5 ft 2. Where rainfall rate is expressed in inches per hour and roof area is given in square feet. To a depth of 1 in 1 hour. Using a 10 000 sq.

Of water in a gallon 0 623 gallons per hour. Take the dimensions of the footprint of your roof and convert them to inches. Rainwater can be collected from the roofs using the rain water harvesting method. Or 0312 gallons per minute sq.

The collectable rainwater from the roof can be calculated in gallons using this calculator based on the rainfall and area.