Roof Rainwater Collection System

External j amer water res assoc.

Roof rainwater collection system.

Don t let all that water go to waste. 1 of rain on 1 000 sf roof will yield 623 gallons. Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember. Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.

Microbiological quality of roof harvested rainwater and health risks. Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof. While metal roofing or plastic sheeting e g. In addition terms such as roofwater collection or rooftop water collection is also used in other countries.

The good news is most roofing materials are suitable for rainwater harvesting. It ranges from rainwater collection to rainwater harvesting to rainwater catchment. We believe that rainwater harvesting is a viable technology in an urban setting. How much rainwater can you harvest from your roof.

There s just a short list of rooftop surfaces that rainwater harvesters should avoid. You can make a rainwater collection system for under a hundred dollars and store hundreds of gallons of water to use for your garden or other purposes. To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches. The collection of rainwater is known by many names throughout the world.

Ahmed w gardner t toze s.