Green Roof Stormwater Runoff

Green roofs aim to help eliminate excess stormwater.

Green roof stormwater runoff.

Therefore green roofs have an important role to play in the urban realm. Their major drawback is the initial cost. Green roofs have a layer of plant material that absorbs water like a sponge. Stormwater runoff that comes from downspouts rushes onto roads picking up copper from brake pads fuel and chemicals.

Green roof runoff does contain concentrations of some nutrients and other parameters but values are in line with other planted systems. Green roofs can help to reduce both storm water volume rate of run off entering the drainage system. In urban areas like. Green roofs can significantly reduce the amount of rain water that would otherwise run off an impervious roof surface.

Green roofs are very effective stormwater bmps.