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Yeah!!!!!!!!!!! I am ready!!!

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Enviromat Sedum matting is great way to create a living green roof and an ideal low maintenance landscaping material. Our sedum roofing system is ideal for green roofs up to 50m2 in area. Visit our website at www.enviromat.co.uk

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Waste Diversion

Prolonging the service life of heating, ventilation, and HVAC systems through decreased use

You can use recycled materials in the growing medium

Stormwater Management

With green roofs, water is stored by the substrate and then taken up by the plants from where it is returned to the atmosphere through transpiration and evaporation.

Green roofs not only retain rainwater, but also moderate the temperature of the water and act as natural filters for any of the water that happens to run off.

Green roofs reduce the amount of stormwater runoff and also delay the time at which runoff occurs, resulting in decreased stress on sewer systems at peak flow periods.

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1: What are the advantages of having a green rooftop?

2: How will the green roof top's help Hong Kong's environment?

3: What structural changes need to be made to have a green roof top?

4: What are the costs for making a green roof

5: After you have built the  green roof does it provide ventilation or do you have to do something to get it?

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						Disadvantages 
					
				
			
		

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						Disadvantages 
					
				
			
		

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relatively higher cost ($1000 to 5000/m2)

not usually suitable for green roof retrofit   projects

greater weight loading (300 to 1000 kg/m2)

need for irrigation and drainage systems  hence, greater need for energy, water materials etc.

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						Advantages 
					
				
			
		

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						Advantages 
					
				
			
		

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diverse utilization of roof (i.e. for recreation, growing food, as open space) with direct benefit to owner

greater diversity of plants and habitats

good insulation properties

can simulate a wildlife garden on the ground

can be made very attractive

often visually accessible

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deep soil (200mm-2000mm thick)

irrigation

normal maintenance ($6.5 to $44 /m2/year)

intensive capital and maintenance input for optimal benefits

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						Typical details 
					
				
			
		

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						Typical details 
					
				
			
		

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						Disadvantages 
					
				
			
		

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						Disadvantages 
					
				
			
		

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more limited choice of plants

usually no access for recreation or other uses

may be visually unattractive to some, especially in dry season

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						Advantages 
					
				
			
		

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						Advantages 
					
				
			
		

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lightweight (80 to 150 kg/m2)

low maintenance

suitable for retrofit projects

relatively inexpensive ($400 to 1000/m2)

suitable for large areas

suitable for roofs with 0-30o slope

can leave vegetation to develop spontaneously

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thin soil (50mm-150mm thick)

little or no irrigation

low maintenance ($0.8 to $2.25 /m2/year)

extensive application over large area for optimal environmental benefits

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I think that if every house in Hong Kong had a green roof it would be a great way of improving Hong Kong's air quality at a great speed.  Provide ventilation for your house. And fervent overflow of drains. Can you imagine a whole country full of green buildings?

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green roofs cost about$400/m2 to $1000/m2 (average $500/m2)

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Green roofs cost about  $400/m2 to $1000/m2 (average $500/m2)