This two-story, 36 classroom, charter school in Ypsilanti, Michigan had an aggressive, 16 week total in-building construction schedule. Highly detailed coordination and constant communication with other skilled trades was essential in meeting the construction deadline. This project used a combination of roof-mounted packaged air handling units (RTUs) for the common areas and self-contained unit ventilators for the classrooms. This system gives each teacher control of his or her room. The building is heated by three, central hot water boilers and pumps that provide water to each classroom’s unit ventilators.