We have a phased reno/add school project that would prefer to earn IEQ 4 by way of post occupancy flush out. As we near the end of the first phase, I've advised the team to complete the preliminary flush out of 3500 cf/sf. Each phase will go the same way. The remaining 10500 cf/sf will be completed after the final phase of the project.
Has anyone run into complications with this method? Does this raise a red flag for the reviewer?