To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
Roofing for rainwater collection.
Rainwater harvest calculator length.
Don t let all that water go to waste.
There s just a short list of rooftop surfaces that rainwater harvesters should avoid.
Check with the manufacturer.
While metal roofing or plastic sheeting e g.
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.
Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons.
Roofing materials gutters piping and storage materials can introduce harmful chemicals like asbestos lead and copper to the water though building standards minimize some of this 6 8.
Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9.
Greenhouse roof has the highest collection efficiency most surfaces are a ok.
The medium sized rain water collection system.
The good news is most roofing materials are suitable for rainwater harvesting.
Here at destin roofing we get questions all the time about having a roof that is able to collect rainwater.
Stand alone rain water collector.
Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.
Some roofing materials aren t suitable for rainwater collection.
Installing a metal roof that is galvanized is a great investment.
If you want to look at collecting from different areas of your roof you can always hit the clear area button to start over.