To calculate how much rainwater that you can harvesting use the equation below.
Roof based rainwater harvesting.
Rainwater harvesting rwh is the collection and storage of rain rather than allowing it to run off.
Rooftop rain water harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs.
Land based roof based.
Rainwater is collected from a roof like surface and redirected to a tank cistern deep pit well shaft or borehole aquifer or a reservoir with percolation.
Collecting rainwater runoff from roof surfaces which usually provides a much cleaner source of water that can be also used for drinking is called roof based harvesting while collecting rainwater runoff from land surfaces is called land based harvesting.
Land based rainwater harvesting occurs when runoff from land surfaces is collected in furrow dikes ponds tanks and reservoirs.
Calculating your roof surface area building plans offer the easiest way to calculate your roof surface area after all the numbers should all be on there.
As your roof surface is the catchment area for harvesting rainwater it s important to know how large or small it is so you can calculate how much rainwater you can expect to harvest.
The area is based on the footprint of the roof which can be calculated by finding the area of the building and adding the area of the roof s overhang.
From rainwater the practice of collecting rainwater can be classified into two categories such as.
Wondering how much rainwater you could collect off your roof.
The practice of collecting rainwater from rainfall events can be classified into two broad categories.
Using rainwater where appropriate conserves potable.
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.
The image below shows how differences in roof slope do not change this building s catchment area.
The main objective of rooftop rain water.
Use this rainwater harvesting calculator to find the answer.