2.6 Ventilation Requirements

Assumptions regarding outside air ventilation shall be based on applicable building codes or ASHRAE Standard 62.1-2007 if local codes do not apply. If information on ventilation rates is unavailable, values from Appendix B shall be used. For most purposes, the same assumptions on outside air ventilation are used in the baseline building and the rated building; therefore, no credit can be realized by reducing ventilation rates in the rated building.