23’4″ x 38’7″ Nexus Vail galvanized steel frame with just under 10′ bays, 8′ under gutter height and 30 lb. loading under the International Building Code (IBC). Greenhouse installed on 2nd floor of block walled university building above headhouse and teaching classroom. Greenhouse glazed with 8mm twinwall polycarbonate panels by Polygal. Heating, cooling and air [...]