Check local building codes to determine requirements. The project must either meet ASHRAE 62.1-2004, or local codes if they are more stringent. Since ASHRAE 62.1-2004 is often more stringent than local codes, be sure to review and be familiar with its requirements.
This prerequisite is paired with EQc2: Increased Ventilation. If ventilation rates are targeted above the 30% ASHRAE requirement, projects can gain both the prerequisite and a point for EQc2. Projects pursuing IEQc2 may follow the compliance path for natural ventilation found in Chapter 2 of The CIBSE Applications Manual 10: 2005 (AM10) for both the prerequisite and for the credit.
For residential applications,adopting a no-smoking policy in Homeowners Association policies can be a good strategy for reducing ETS transfer between units.
Depending on which of the two options you choose for this credit (see Schematic Design), you should start to consider the following two things during predesign:
Review the air-flow modeling methodology and requirements in Volume A of the CIBSE Guide and ASHRAE 62.1-2004, Section 6.2. This section of ASHRAE 62.1 offers the modeling protocol for simulating air movement within the building. It is not difficult to follow and may be familiar to modeling consultant.
