The selling area of a retail commercial interior project will be a conditioned space located over a parking area whose height is half under sidewalk level and half above it. This happens on 2 of the 4 sides of the place. There will be a also metallic curtain for the parking access. Openings including parking garage access are about 25% of this space. Considering the openings DO NOT have operable windows, should we call this place unconditioned space or should it be considered and treated as exterior?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
October 8, 2012 - 10:22 am
Sounds like unconditioned space to me. See the definition of unconditioned space in 90.1.
gustavo goldman
15 thumbs up
October 9, 2012 - 10:39 am
Thanks Marcus for your reply
Checking 90.1 the definition of unconditioned space talks about enclosed space and indicates that parking garages with natural or mechanical ventilation are not considered unconditioned spaces. Also cheking the definition of enclosed space I find that it talks about operable windows that we don't have in this case...
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
October 9, 2012 - 12:04 pm
Sorry I meant to say - Sounds like it is not an unconditioned space to me. So it is not a space at all and is considered as the exterior.