Gallons Of Water On Roof

To a depth of 1 in 1 hour.

Gallons of water on roof.

Converting this to gallons per minute per square foot gpm ft 2. For example on a 2 000 square foot roof you can collect 2 000 x 0 56 1 120 gallons inch of rain. Rain barrel supplies list. In this example 600 x 240 x 1 144 000 cubic inches of water divide by 231 to get the number of gallons because 1 gallon 231 cubic inches.

A service by the american water works association. An online drip calculator that calculates the amount of waste from your leaky faucets. When you look at the numbers it s surprising how much water you can collect every time it rains. 1 inch of rainfall in an hour will cover 1 sq ft.

Take the dimensions of the footprint of your roof and convert them to inches. Rainwater collection calculator in gallons. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. Rainwater can be collected from the roofs using the rain water harvesting method.

Required roof drainage flow rate in gallons per minute 0 0104 x rainfall rate x roof area where rainfall rate is expressed in inches per hour and roof area is given in square feet. If your average rainfall was 25 inches year your annual collection potential is 1 120 x 25 28 000 gallons year. A typical outdoor trash can holds 32 gallons. Convert the amount of rain from cubic inches into gallons.

The answer is definitely yes. Can you get enough water out of the gutter to make it worthwhile. To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. The collectable rainwater from the roof can be calculated in gallons using this calculator based on the rainfall and area.

There are 231 cubic inches of water in a gallon so using our example above divide cubic inches by 231 and you have a total runoff of approximately 1870 gallons of water or 432 000 231 1870 129. Or maybe a low pressure cell has been napping overhead and your arm is hurting from holding that umbrella while you watch your basement fill up with water. If you capture the rainfall runoff from a storm that just produces 1 10th of an inch of rain onto a 20 by 30 foot roof you end up with a full 32 gallon container full of water with 5 gallons left over. 1 of rain on 1 000 sf roof will yield 623 gallons roof area m 2 x precipitation amount mm amount collected liters other water conservation calculators.