From Green Roofs to Rain Gardens Dusty Gedge

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In the future we will design cities for nature and the countryside for people‌







At the moment we don’t even really design cities for people…we design cities for…







Berkeley Homes Aspiration for Net Gain in their new developments


Berkeley Homes Aspiration for Net Gain in their new developments




Nature-based Solutions in the Urban Realm from green roofs November 9th 2017

Dusty Gedge - Green Infrastructure Consultancy Ltd European Federation of Green Roofs and Green Walls



Do nature-based solutions deliver meaningful biodiversity?




www.greenrooftraining.com •

Small green roof guide

Based in Essexs

Anyone interested in attending a workshop let me know



Are green roofs nature based solutions? Can they deliver meaningful biodiversity?






Does meet the GRO minimum


Biodiverse - ‘brown’ roof







Tension - brick and biodiversity



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Green Roofs

Interlinking Benefits

Amelioration of stormwater Reduction in the Urban Heat Island


What •

Two main types of green roofs

Intensive

Extensive –

Sedum

Biodiverse

Brown


Intensive •

Parks and gardens on roofs

•

Urban food growing would be intensive





Extensive Green Roofs - this is the ‘problem’ area



‘Brown’ ROofs

What a bad idea!!!!

License to dump ‘crap’ on roofs




Brown Roofs - Biodiverse Roofs • Have tried to move ecologists away from brown roofs • Biodiverse green roof is provides same ecological benefit • Should be verifiable in terms of substrate and plants • Less maintenance




It’s what they d

We don’t think it’s incredible that a bee can fly 220 metres between flower 220 metres


But how do they get to the

Take the lif

156 me

156 metres


Bees can FLY! 220 metres

156 me

156 metres


For a bee surel 220 metres

220 metres

The distance is th





Let’s weave a solar biodiversity story


• CombinINg technologies

Biosolar roofs






Green roofs and biodiversity • Can designed green roofs for specific species especially birds and invertebrates • A general wildflower and sedum seeded and planted green roof can deliver OPEN-MOSIAC HABITAT • Intensive green roofs should be design 50% native and 50% non-native of known wildlife value


Are green walls naturebased solutions and can they deliver biodiversity?






Rain Gardens













Designing for Nature and Naturebased solutions •

Nature-based solutions don’t necessarily deliver meaningful biodiversity

Designing for nature on buildings is not product based - requires ecological input and design

Off the shelf solutions tend not to deliver the


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Podcasts on Green Infrastructure

/livingroofs.or g/depavepodcast/


www.greeninfrastr uctureconsultancy .com Thank you www.livingroofs.or g European Federation of Green Roof and