hoop house
n.— «Temporary “hoop house,” gambrel or typical pitched roofed buildings constructed of metal or plastic and supported by metal or plastic tube frames have been appearing around the city of Brainerd, Caughey said. Such structures have been appearing without a building permit or verification of compliance with zoning requirements.» —“City’s ‘hoop houses’ must go by June 1″ by Matt Erickson Brainerd Dispatch (Minnesota) Feb. 24, 2007. (source: Double-Tongued Dictionary)