Green Roof

• Provide amenity space for building users - in effect replacing a yard or patio
• Reduce heating (by adding mass and thermal resistance value) and cooling (by evaporative cooling) loads on a building - especially if it is glassed in so as to act as a terrarium and passive solar heat reservoir
• Reduce the urban heat island effect
• Increase roof life span
• Reduce storm water run off - see water-wise gardening
• Filter pollutants and CO2 out of the air - see breathing wall
• Provide locally grown food - in which case it is known as a roof garden
• Increase wildlife habitat in built up areas - see urban wilderness

"In North America, the benefits of green roof technologies are poorly understood and the market remains immature, despite the efforts of several industry leaders. In Europe however, these technologies have become very well established"

External links

• Green Roofs for Healthy Cities

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