Three extensive green roofs were installed on an area of 28,045 SF on the roof of this building of the Keele Campus of York university to study stormwater management and biodiversity in a cold climate region.
http://yorkugreenroofs.com/greenroofs
www.sustainabletechnologies.ca
The SOPRANATURE CORDILLERA system is used on one sloped roof of 10% while the two other flat roofs are covered with a TAIGA system. The three roofs were sowed with a wild flower mix and some areas were planted with perennials.