[Wpg_Guy]

Location: Winnipeg, Manitoba
Client: Assiniboine Park Conservancy, with Corbett Architecture
Architects: KPMB http://www.kpmb.com/project/canadas-...iniboine-park/ as Design Architect in association with Architecture 49 http://architecture49.com/en/portfol...-conservatory/
Completion: 2020
Size: 84,400 s.f.
Project Type: Cultural
Cost: 75M
Fact: Main structure 'The Leaf' will be made of an extremely lightweight see-through plastic Ethylene tetrafluoroethylene (ETFE)

• Video Link

Winnipeg’s biodome garden looks to make a tropical splash in a city defined by winter
In Assiniboine Park, the lush Canada’s Diversity Gardens could help bring the world to a city on the grow, Roy MacGregor writes

The main attraction, The Leaf, is to be constructed using ETFE (ethylene-tetrafluoroethylene), a plastic-like material that is translucent and extremely lightweight yet strong. It is also resistant to wild fluctuations of temperature. Staff travelled to Astana, capital of Kazakhstan, to examine a mall constructed with ETFE and came away convinced it was perfect for their purposes.

“How do you build a tropical garden in Winnipeg, where it goes down to -35 Celsius?” asks Mitchell Hall, principal architect at KPMB.

Using this revolutionary building material, says Mr. Hall, “was a real breakthrough for us.” The challenge was how to heat the substantial volume of air in the largest biodome in the dead of winter and also cool it in summer. Using a combination of sunlight, geothermal heating and earth tubes (underground pipes through which warm or cold air is drawn), KPMB is convinced it can be done in a sustainable way....

https://www.theglobeandmail.com/cana...+Article+Links

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