Roof Rainwater Collection System

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Roof rainwater collection system.

How much rainwater can you harvest from your roof. Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. External j amer water res assoc. Don t let all that water go to waste.

External j environ qual. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. Health risks associated with consumption of untreated water from household roof catchment systems. In addition terms such as roofwater collection or rooftop water collection is also used in other countries.

There s just a short list of rooftop surfaces that rainwater harvesters should avoid. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall. It ranges from rainwater collection to rainwater harvesting to rainwater catchment. While metal roofing or plastic sheeting e g.

Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof. We believe that rainwater harvesting is a viable technology in an urban setting. The collection of rainwater is known by many names throughout the world. Greenhouse roof has the highest collection efficiency most surfaces are a ok.

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