Green Roof Method Of Rainwater Harvesting

In rooftop rainwater harvesting the rainwater is captured from the roof and directed downwards through a rainwater pipe into a water storage tank or a container.

Green roof method of rainwater harvesting.

The harvesting of rainwater is as simple as collecting water from surfaces on which rain falls and subsequently storing this water for later use. Green roof there is another method of rainwater harvesting that cuts out the middleman so to speak. Rather than collect the rainwater in a storage unit then divert it to the garden you could institute a green roof on your property so that plants can utilize the water immediately. Extensive green roofs potsdammer platz berlin rainwater harvesting.

Contrary to the other systems above which collects the rainwater into a storage container a green roof system doesn t. A typical green roof build up consists of standard waterproofing a drainage layer and a layer of growing medium which the planting grows into. Green roof technology is improving all the time. Greenroofs are a best management practice in reducing and delaying stormwater runoff.

Rooftop rainwater harvesting systems are useful for augmenting the water systems in both urban and rural areas and they are excellent for use in arid and semi arid areas where traditional water sources are not readily available. Looking at buildings we can slow the rate of rainwater runoff from roofs with the use of green roofs. Rainwater harvesting represents an alternative water supply that captures and stores rainwater for later use. Water collected in storage tank s and pumped directly to points of use.

Water collected in storage tank s and fed by gravity to points of use. By using greenroofs as rainwater capture areas the amount of water will be reduced making the system cost less efficient and difficult to gauge water collection. With this system it is set in a way that it takes the rainwater directly to your plants. This simple practice reroutes rooftop drainage pipes from draining rainwater into the storm sewer to draining it into rain barrels cisterns or permeable areas.

In fact it is quite common to harvest water from green roofs in germany and switzerland. Water collected in storage tank s pumped to an elevated cistern and then fed by gravity to the points of use. Normally water is collected from building roofs and stored in dedicated water tanks. There are three main types of rainwater harvesting system.

Water from the roof flows from this disconnected downspout into the ground through a filter of pebbles. Types of rainwater harvesting. Rainwater harvesting can be classified into rooftop rainwater harvesting and surface runoff harvesting.