Mjolk Architects, based in the Czech Republic, is one of 5 winners in the Warming Huts v. 2012 Design Competition. Their entry, dubbed the Polar Hen, is created by pumping and spraying riverwater over an air-filled silicon support structure (an egg-shaped balloon). The water freezes on the surface, creating a thick shell. The silicon is then deflated and removed, leaving behind a transparent igloo that will, come spring, return to its origin.
The 5 winning hut designs have been built and are located on the Assiniboine River in Winnipeg, Manitoba.
View a video of the creation of the POLAR HEN.
See the other winning entries below or check out the competition website