Thanks @Erikbeeren
Thats helpful. I was diving into some other guideline docs and I think I’ll move forward ‘not modeling’ the Parking as a ‘space’ and just setting all the floors as exposed to outdoor air. In the 90.1 Section 11 and Appendix G Review Manual V01b they seem to state pretty clearly that for figuring out U-Values / Assemblies at least:
so seems that it would make sense to keep those as ‘exterior’ surfaces for the model as well.
thanks for the input!
@edpmay