Assess what documentation presently exists that shows the system’s compliance with the natural ventilation criteria. Choose one of the following options to show compliance.
Conduct a second set of airflow measurements and compare these to your original VRP calculations to verify that the outdoor air rate for each ventilation system is at least 30% better than ASHRAE 62.1-2007.
If you don’t already comply with this credit (which is usually the case), consider whether it’s worth increasing ventilation rates in order to comply (assuming your HVAC system has the capacity).
You might qualify for this credit without any further work. Use the ventilation rate procedure (VRP) calculations that you completed for IEQp1. Check whether outdoor air rates for each ventilation system serving occupied spaces are at least 30% above the minimum amount required by ASHRAE 62.1-2007.
Before you begin to address this credit, complete all tasks required by IEQp1: Minimum Indoor Air Quality Performance to ensure that your building meets the minimum requirements of ASHRAE 62.1-2007.
Produce documentation of participation in a third-party voluntary reporting program. Your current choices are WRI/WBCSD, Energy Star, or EPA Climate Leaders.
Decide whether you want to use Energy Star Portfolio Manager to meet the minimum credit requirements or a more rigorous third-party voluntary reporting program such as WRI/WBCSD or EPA Climate Leaders.