Installing a metal roof that is galvanized is a great investment.
Roofing for rainwater collection.
The good news is most roofing materials are suitable for rainwater harvesting.
To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
Rainwater collection calculation formulas and equations roof area ft 2 x precipitation amount in x 0 623 amount collected gallons.
Dirt and germs can be washed into collected rainwater from the roof especially when rain follows several days of dry weather 3 4 9.
Rainwater harvest calculator length.
Did you know the average roof collects 600 gallons 2 271 2 l of water for every inch of rainfall.
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.
Check with the manufacturer.
While metal roofing or plastic sheeting e g.
Depending on what kind of metal roofing you get affects the price but they are all great for collecting.
Stand alone rain water collector.
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.
Don t let all that water go to waste.
Some roofing materials aren t suitable for rainwater collection.
The medium sized rain water collection system.
Greenhouse roof has the highest collection efficiency most surfaces are a ok.
If you want to look at collecting from different areas of your roof you can always hit the clear area button to start over.