Hello in a Museum, we have an uderground open space, that, on our understanding is an exterior space, as it is outside the Access vestibule. It has a roof overhang but have a completely and permanently open side, with more than 40ft and the total height of the space, in which there are the acces stairs and a water feature. However there will be two people in this space working in an info booth. In our undesrtangind, this is an exterior space with the shadow of the overhang, and therefore have no thermal conditioning or mechanical ventilation. Is this space is required to be included in the Ventilacion calculations of the ASHRAE Standard 62.1 (Natural or mechanical) and in the Thermal comfort requirements (ASHRAE Std. 55). We thing it's excluded as an outdoor space, but want to confirm.