Hello,
I have a high-rise residential building project, which will be naturally ventilated. No implementation within residential units will be included in the project scope of work.
I wonder if CO2 sensor will need to be implemented by owner or included in the lease agreement within residential units. Also, if closing -openable window alarm can be included in the lease agreement, or in this case, as the owner is implementing the windows, he or she is forced to include the alarms in his or her project scope of work.
Regards,
Dante
Ron Dean
Sumac Inc.21 thumbs up
October 21, 2019 - 6:41 pm
Any thoughts.
Thanks
Ammon Palmer
Mechanical EngineerCTA Architects Engineers
2 thumbs up
October 22, 2019 - 10:20 am
I can't be certain, but the way I read the credit, you would need to provide either a direct exhaust airflow measurement device, an alarm that indicates when the windows are closed, or a CO2 sensor in all the anticipated thermal zones. I don't see an exception that allows for less.
In fact, the note regarding Core and Shell indicates that a mechanical ventilation system must be capable of ventilating the entire space based on anticipated occupancy. That to me would indicate that the intent is to provide capability for ventilation (or in this case a way to show compliance with natural ventilation).
It is possible that you could argue that the shell is providing the capability to comply with the requirements (ie. a system that would monitor the window positions) but write into the lease that they need to provide the actual sensors. I think at a minimum the shell would need to provide the backbone. (The justification would be that the Shell provides the mechanical ventilation equipment, but the tenant improvement installs the ductwork etc.)
I hope this helps.