Sedum Roof Rainwater Harvesting

Rainwater harvesting from rooftop catchments represents a climate change adaptation measure that is especially significant in areas affected by water scarcity.

Sedum roof rainwater harvesting.

Up to 75 of rainfall is absorbed by an extensive living roof and up to 90 is absorbed by an intensive green roof system. And one of the simplest methods of rainwater harvesting is the good use of your rooftop. With light moderate rainfall all rainfall will be absorbed whereas with heavy rain there is run off but the discharge rate is halved1. 49 7641 589 50 e mail.

The shallower extensive varieties of green roofs are usually designed to have relatively simple maintenance requirements this is not to say that they can just be left however. Extensive green roofs potsdammer platz berlin rainwater harvesting. The roof is likely to consist of an impermeable layer a susbstrate or growing medium and a drainage layer although not all green roofs require a drainage layer. Whether you re working with existing conditions or spec ing out a brand new roof we ve got expert advice for you.

If you re thinking about rainwater harvesting also known as roof water harvesting you may be wondering about the best roofing materials for rainwater collection. 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. Rainwater harvesting is one of the oldest methods that you can use to supply your household with water without paying for the water itself. Extensive green roofs may require watering on a regular basis as well as the elimination of undesirable flora such as weeds from the area of the roof and the gravel or shingle.

This article develops a geographic information systems based methodology to evaluate the spatial distribution of rainwater catchment potential to identify the most favorable urban areas for the installation of these infrastructures. However there are two issues. Green roofs comprise a multi layered system that covers the roof of a building or podium structure with vegetation cover landscaping. For single storey homes your roof surface area will often be greater than your floor area unless you have a flat roof.

In fact it is quite common to harvest water from green roofs in germany and switzerland. The bedzed sedum roofs have an absorption capacity of 28 litres m2. Green roofs can be effective in both urban and rural areas as a solution to managing rainwater drainage. Otto graf gmbh plastic products carl zeiss straße 2 6 de 79331 teningen tel.

Mail graf info contact from graf. Sedum roofs are covered in semi succulent plants that absorb rainfall and decrease the amount of rainwater that can be harvested. This large area that covers and protects your home can gain an additional beneficial function. Excess water drips from the roof gradually so drains are not overwhelmed by a sudden deluge.

Calculating your roof surface area.