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NC-2009 IEQc1:Outdoor Air Delivery Monitoring

Open Office Areas - CO2 monitoring?

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Norma Lehman
Principal
The Beck Group
LEEDuser Basic Member
98 thumbs up

Our building includes private offices, open office areas, and meeting rooms. We have provided CO2 sensors for meeting rooms that have a density of 25 people per 1000 sf or more. Is there guidance on open office areas? If our density is such that we are at least 25 people per 1000 sf in the open office areas but the open office areas are not enclosed (with a door), does it still require CO2 sensors? I would appreciate any guidance.

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Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Thu, 02/24/2011 - 17:01

Norma, those areas do required CO2 sensors according to the credit requirements. This should help ensure adequate ventilation in those spaces.

Fri, 03/11/2011 - 20:44

What part of the credit requirement requires CO2 sensors not enclosed by walls? Where is the line drawn what is and is not included in a space?
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Dylan Connelly
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up

Fri, 03/16/2012 - 17:35

Most open offices will not be that dense. Typically 1 person / 100 sf or 10 people per 1000 sf is standard for estimations. There doesn't need to be a wall to create a "HVAC Zone." Where you draw the line is up to you. Typically you draw the line between two different occupancies. Eg. between an open office and a hallway or reception.

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