Gallons Of Water Per Square Foot Of Roof

For example on a 2 000 square foot roof you can collect 2 000 x 0 56 1 120 gallons inch of rain.

Gallons of water per square foot of roof.

Just a half inch of rain falling on a 1 000 square foot roof will yield 300 gallons of water. If your average rainfall was 25 inches year your annual collection potential is 1 120 x 25 28 000 gallons year. Understanding how many gallons are within a square foot of water is useful in determining the amount of water required to fill a structure such as a pool or a pond. So a 50 x 20 roof is 600.

Take a guess what is the volume of water that runs off a 1 000 square foot roof during a 1 rain storm. To calculate the runoff from any given rainfall. The answer is about 623 gallons. So if they drain 23 million gal.

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. 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. Take the dimensions of the footprint of your roof and convert them to inches. Per day it would take just short of 6 days to lower the level by 1 inch.

When you look at the numbers it s surprising how much water you can collect every time it rains. 1 inch of water over a 5000 acre area equals 135 771 500 gallons.