Forum discussion
NC-2009 IEQp1: Minimum IAQ Performance
Fellow #LEED professionals: has anyone meet the requirements of IEQp1 using CA Title 24-2008 ventilation requirements in lieu of ASHRAE 62.1-2007?
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Is outdoor air quality testing required in a space using natural ventilation?
What options are available to projects outside the US to meet this prerequisite?
Can LEED 2009 projects elect to follow ASHRAE 62.1-2010 for this prerequisite?
Which units should be included in the calculations for this prerequisite?
Roger Chang
Principal, Energy and Engineering LeaderDLR Group | Westlake Reed Leskosky
LEEDuser Expert
398 thumbs up
May 26, 2011 - 9:33 am
ASHRAE 62.1-2007 is actually more stringent than T24-2008 for multiple-zone systems (e.g. single duct VAV) in some instances. You'd want to do the calculations both ways and ensure the system level ventialtion rate is the higher of the two.