Greenhouse roof has the highest collection efficiency most surfaces are a ok.
Roof rainwater collection system.
Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.
Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.
To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
Don t let all that water go to waste.
1 of rain on 1 000 sf roof will yield 623 gallons.
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.
The good news is most roofing materials are suitable for rainwater harvesting.
Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons easy formula to remember.
How much rainwater can you harvest from your roof.
We believe that rainwater harvesting is a viable technology in an urban setting.
Health risks associated with consumption of untreated water from household roof catchment systems.
External j amer water res assoc.
Ahmed w gardner t toze s.
While metal roofing or plastic sheeting e g.
Microbiological quality of roof harvested rainwater and health risks.
In addition terms such as roofwater collection or rooftop water collection is also used in other countries.
External j environ qual.