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.
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Gustavo De las Heras Izquierdo
LEED Expert185 thumbs up
July 6, 2015 - 6:20 pm
Hola Mauricio,
According to your explanation, I would say that the info-booth can be considered as naturally ventilated (assuming they have a large open window) and it meets ASHRAE 62.1-2007 standard.
Regarding ASHRAE 55 requirements, unless the info-booth has some kind of heating or air conditioning I think it is difficult to justify thermal comfort in this space (and achieve IEQc7.1). However, you might have a chance if the energy model says this space is within the confort range most of the year.