Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Uni-Systems, LLC is a design, construction, and consultation engineering firm located in Minneapolis, Minnesota specializing in kinetic architecture, or movable, mechanized structures designed to adapt to individual structures' needs. The firm has become particularly recognized for its design and installation of retractable roof systems on various sports stadiums across the United States; Uni-Systems has been involved in the construction of five of the seven sports stadiums incorporating retractable roofs in North America since 1999.

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