In New York the local code does not follow IBC or ASHRAE 62.1. It requires 20cfm/person and 0cfm/sf. How do I go about proving to USGBC that the ventilation levels are adeqaute, when all the template references is 62.1 and the 62MZcalc?
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Roger Chang
Principal, Energy and Engineering LeaderDLR Group | Westlake Reed Leskosky
LEEDuser Expert
398 thumbs up
December 9, 2011 - 9:17 am
You'll want to use all of the ASHRAE 62.1 calculation methods and then compare the ventilation rates to NYC codes on a zone and system level. The NYC code rates tend to end up being higher than ASHRAE 62.1 rates. For NYC code, application of 403.3.2 (multiple-spaces approach) will result in high system-level ventilation rates.