Single prime design delivery on the renovation of ductwork in a University building which houses both a geo-chemistry lab and student dormitory rooms. Exhaust hood fan speeds were insufficient to properly vent chemical fumes through auxiliary roof duct and instead, fumes entered general building ductwork and student dormitory area leading to health complaints from students. University claim against design team for lab shut down, re-work, alternate student housing, and indemnity for student claims exceeded available design professional insurance.