In urban areas, hefty rainfall can cause flooding and drinking water pollution. Green roofs act as a normal sponge, absorbing and retaining rainwater That may normally pollute nearby rivers and streams.For all types of green roofs, it’s imperative that you inspect drainage shops regularly to be certain they remain away from debris. Any bare patch

Now you need to incorporate your substrate – this will probably be some sort of aggregate and organic and natural material mixture. Distribute this evenly across the whole spot of the roof to your essential depth as per your design.A depth of 50mm is effective very best but a least depth of 20mm is appropriate in some instances. That’s more to