The good news is most roofing materials are suitable for rainwater harvesting.
System roof top rain water harvesting.
For the vast majority of tank based rainwater harvesting systems the catchment area is the roof surface.
Roof material the material of the roof is not as important as contaminants that may be on the roof.
Greenhouse roof has the highest collection efficiency most surfaces are a ok.
Here s a handy little calculator to help you estimate how much rainwater can you harvest from your roof.
Water from sloping roofs could be caught through gutters and down take pipe.
Harvested rain water can be stored in subsurface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks.
To use this calculator input the dimensions of your roof only area connected to rainwater harvesting system and the amount of rainfall in inches.
Dew and fog can also be collected with nets or other tools.
Examples of such materials include wood plastic aluminum or fiberglass.
Rooftop rainwater harvesting this is the best and most effective method of harvesting rainwater for apartments as it is less expensive and if implemented efficiently helps in augmenting the groundwater level of the area.
While metal roofing or plastic sheeting e g.
Water pipes should be uv resistant isi hdpe pvc pipes of required capacity.
The rain will collect in gutters that channel the water into downspouts and then into some sort of storage vessel.
This is a system of catching rainwater where it falls.
Rainwater harvesting rwh is the collection and storage of rain rainwater is collected from a roof like surface and redirected to a tank cistern deep pit well shaft or borehole aquiferor a reservoir with percolation.
Traditionally this involves harvesting the rain from a roof.
Rainwater from rooftop should be carried through down take water pipes or drains to storage harvesting system.
Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs.
There are some important factors about the roof to consider when planning for a rwh system.
All components of a rooftop rainwater harvesting system should be made of chemically inert and non toxic materials to keep the water quality from being negatively affected by chemicals.