Dear LEED Users,

I have a question regarding the prerequisite 1 of IEQ Section: Minimum Indoor Air Quality Pollution.
According to the Ventilation Rate Procedure of ASHRAE Standard 62.1-2007, the design outdoor air flow in the breathing zone should be determined in order to remove contaminant from both people related sources and area-related-sources (coming from materials).
Our project validates the following credits (under LEED 2009 NC):
- IEQ Credit 3.1 – Construction IAQ Management Plan – During construction
- IEQ Credit 3.2 – Construction IAQ Management Plan – Before occupancy
- And IEQ Credits 4.1 to 4.4 – Low-emitting materials
Considering that these credits are met, especially the fact that only low-emitting materials will be installed and that a flush-out will be conducted before occupancy, is it coherent to say that they are no area-related-sources?
If so, is it OK to only take into account the outdoor airflow required per person ?

Thank s for your help.

Best regards,

Ian.