VanDusen Botanical Garden, Vancouver, Canada
|project profile data|
|Area:||ca. 20,000 sq. ft. (1,800 m²)|
|Architect/Design:||Perkins + Will, Vancouver|
|Landscape Architect:||Cornelia Hahn Oberlander, Vancouver|
|System Build-ups:||Floradrain® FD 40-E, Floraset® FS 75 and Georaster®, with 6–8 in. (150–200 mm) growing media Zincoblend|
In 2011, the approximately 54 acres large VanDusen Botanical Garden, existing since the 1970s, was provided with a new representative visitor center in the size of approximately 20,000 sq. ft. (1,800 m²). The peculiarity of the design is the roof shape, imitating the leaves of an orchid flower. The flower stem is represented by the central atrium. The idea for this roof shape was developed by the famous landscape architect Cornelia Hahn Oberlander, known for the perfect integration of her landscaping into the overall architectural concept. Due to the varying inclinations and curvatures of the roof surface three different systems were applied: on the flat areas a build-up based on Floradrain® FD 40-E, on the sloped roof areas a build-up with Floraset® FS 75 and on the steep roof areas a build-up with Georaster®.