The sum of all areas on all floors of a building designed to house mechanical equipment, utility services, and shaft areas.
Included should be mechanical areas such as central utility plants, boiler rooms, mechanical and electrical equipment rooms, fuel rooms, meter and communications closets, and each floor’s footprint of air ducts, pipe shafts, mechanical service shafts, service chutes, and stacks. Source: U.S. Department of Education, National Center for Education Statistics. (2006). Postsecondary Education Facilities