Green roofs and growing food

Meeting: 
MQT on 2007-01-30
Session date: 
January 30, 2007
Reference: 
2007/0041
Question By: 
Darren Johnson
Organisation: 
City Hall Greens
Asked Of: 
The Mayor

Question

Given the support for green roofs in your planning policies, are your officers considering the potential such initiatives have for food growing?

Answer

Answer for Green roofs and growing food

Answer for Green roofs and growing food

Answered By: 
The Mayor

I believe the main benefits that green roofs provide are increasing energy efficiency, by improving insulation and cooling performance, enhancing urban biodiversity, and helping storm-water attenuation. Green roof designs that deliver these benefits and can be readily engineered in to building construction, are not suitable for growing crops.Creating appropriate conditions for growing food, such as providing deeper soils and significant irrigation, would be more difficult to engineer into building design and could further limit the construction of green roofs.Clearly roof gardens and terraces can provide opportunities for growing food for personal consumption.