[sq.ft.] An enclosed space within a building that does not meet the requirements of a conditioned space. Spaces that have no control over thermal conditions but intentionally or unintentionally receive thermal energy from adjacent spaces are considered unconditioned spaces (such as an attached garage on a house or a vestibule with no thermal comfort criteria). Spaces that are ventilated only to maintain air quality are considered unconditioned spaces (such as a parking garage with no thermal comfort criteria).
