Rain Off A Roof

1 of rain on 1 000 sf roof will yield 623 gallons.

Rain off a roof. A common slope used that covers most materials is 2 12 which means that for every foot the roof steps up or down 2 inches. This is done to give the paint a better surface to adhere. Designing a flat roof for runoff how water runs off a roof depends on the amount of rainfall and how quickly it needs to drain. Paint the drip edge.

Block out distractions to. The drainage system of any roof can be located at the edge or in the middle of the roof. Multiply the area of your roof by the amount of rainfall you wish to calculate for. See more ideas about outdoor gardens backyard front yard.

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. Place a piece of standard metal drip edge onto a table or between a pair of sawhorses. If your average rainfall was 25 inches year your annual collection potential is 1 120 x 25 28 000 gallons year. For example on a 2 000 square foot roof you can collect 2 000 x 0 56 1 120 gallons inch of rain.

How to redirect rain off a roof 1. To find how much rain you can collect in an average rain year multiply this number by the average inches of rain. Rain falls upon a tin roof creating a soothing rainstorm white noise that is perfect for helping you sleep study focus or relax. Take the dimensions of the footprint of your roof and convert them to inches.

For example if you have a roof that measures 1 500 square feet that equals 216 000 square inches. So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. Rainwater collection calculation formulas and equations. 1 500 x 144 216 000 multiply those 216 000 square inches by the rainfall.

You have to admit that whether you re in a drought situation or not it s hard to pass up that much of a free thing. The number of feet multiplied by 144 equals inches. Roof area m2 x precipitation amount mm amount collected liters. If you get about 10 inches of rain over the course of the spring and summer an average 1 360 square foot roof would yield 8 160 gallons of rainwater.

Turn it upside down so the.