Gallons Of Water On Roof

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.

Gallons of water on roof. So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. Rainwater collection calculator in gallons. Take the dimensions of the footprint of your roof and convert them to inches. A service by the american water works association.

If your average rainfall was 25 inches year your annual collection potential is 1 120 x 25 28 000 gallons year. Rain barrel supplies list. For example on a 2 000 square foot roof you can collect 2 000 x 0 56 1 120 gallons inch of rain. 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.

To get an idea how much water the roof of your own house might yield use the rainfall harvest calculator above. Convert the amount of rain from cubic inches into gallons. 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. When you look at the numbers it s surprising how much water you can collect every time it rains.

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. 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. Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. Either way you would like to know how much rain has fallen how many gallons have come down from the skies onto your roof yard block or town.

The collectable rainwater from the roof can be calculated in gallons using this calculator based on the rainfall and area. The answer is definitely yes. Rainwater can be collected from the roofs using the rain water harvesting method. Easy formula to remember.

To a depth of 1 in 1 hour. 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. An online drip calculator that calculates the amount of waste from your leaky faucets. Can you get enough water out of the gutter to make it worthwhile.