Forum discussion
CI-2009 IEQp1: Minimum IAQ Performance
Does anyone know if for ventilation requirements Title 24 - 2005 is acceptable in lieu of ASHRAE 62.1-2007? I know for EAc1 Title 24 - 2005 is seen as equivalent to ASHRAE 90.1- 2007. Additionally, it is written in the book that "local code can be used in lieu of ASHRAE when the local code is more stringent."
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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
November 23, 2011 - 10:40 am
This one is challenging to answer, because T24-2005 doesn't include the same procedures as ASHRAE 62.1 for multi-zone recirculating systems (e.g. VAV). If you're working with a dedicated outdoor air system and the effective airflow rates are greater per person than ASHRAE 62.1, then I think it's fine to use T24.