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Green Roof vs Roof Garden

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A green roof is the practice of growing vegetation directly on a roof over a waterproof membrane. A roof garden is a similar technique that places container gardens on a roof. Both techniques may partially or completely cover a roof. Both may feature recreational facilities or commercial facilities such as a rooftop cafe.

Intensive vs Extensive

A green roof comes in two varieties: intensive and extensive. Intensive includes a thick layer of soil that can support large vegetation such as small trees. An extensive green roof is characterized by a thinner layer of soil and smaller plants.


Green roofs may make a city more beautiful, clean the air, moderate urban heat islands, produce local food, reduce stormwater runoff, increase biodiversity and improve the efficiency of a building by acting as insulation.
Rooftop gardens have many of the same benefits but generally aren't as effective at capturing water or insulating a building.
Green Roof vs Roof Garden
Green Roof
Roof Garden
Vegetation planted directly on a roof over a protective waterproof membrane.
Vegetation planted in containers on a roof.
Potential Benefits
Air Quality
Urban Heat Moderation
Food Production
Reducing Runoff
Air Quality
Urban Heat Moderation
Food Production
Reducing Runoff


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