Rain Off A Roof

How to redirect rain off a roof 1.

Rain off a roof.

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. Oct 7 2018 explore joyce weber s board water runoff ideas on pinterest. Turn it upside down so the. To find how much rain you can collect in an average rain year multiply this number by the average inches of rain.

So a 50 x 20 roof is 600 x 240 multiply the roof dimensions by the number of inches of rainfall. 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. Roof area m2 x precipitation amount mm amount collected liters.

Block out distractions to. 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. 1 of rain on 1 000 sf roof will yield 623 gallons.

1 500 x 144 216 000 multiply those 216 000 square inches by the rainfall. This is done to give the paint a better surface to adhere. The drainage system of any roof can be located at the edge or in the middle of the roof. Paint the drip edge.

Take the dimensions of the footprint of your roof and convert them to inches. The number of feet multiplied by 144 equals inches. 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. Score the surface of the drip edge with 80 grit sandpaper.

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. 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. Rain falls upon a tin roof creating a soothing rainstorm white noise that is perfect for helping you sleep study focus or relax. For example if you have a roof that measures 1 500 square feet that equals 216 000 square inches.

Roof area ft2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember.