2.6 Ventilation Requirements

Assumptions regarding outside air ventilation shall be based on applicable building codes or ASHRAE Standard 62.1 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.