SUSTAINABLE BUILDINGS
Asset Classes
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Offices
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- Not applicable
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Enclosed Shopping Centres
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- Not applicable
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Open Air Retail
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- Not applicable
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- Not applicable
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Light Industrial
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- Not applicable
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Multi-Unit Residential Buildings
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- Not applicable
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- Not applicable
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Health Care Facilities
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- Not applicable
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- Not applicable
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Universal
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- Not applicable
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Focus Area
Indoor Air Quality and Hazards
Topic
Ventilation and Exhaust
Question #
I2.3 – Air Quality Sensors
Question
Are air quality sensors (CO2, Temperature, Relative Humidity) present within the HVAC system and do they monitor real-time indoor air quality metrics on the Building Automation System (BAS)?
Applicability
All asset classes
Owner/landlord occupied building
Tenant occupied building
Answer & Scoring
- Yes = Points as indicated below
Select all that apply:
-
- 5 = 1 point
- PM10 = 1 point
- CO = 1 point
- Ozone = 1 point
- NO2 (nitrogen dioxide) = 1 point
- Total VOCs = 1 point
- Formaldehyde = 1 point
- No = 0 points
Max of 3 points
Requirements
-
- At least one sensor must be installed within a regularly occupied space in the building
- Demonstrate air quality sensors are present within the HVAC system, as follows:
- The BAS system must be equipped with sensors to measure CO2 concentrations, temperature, and relative humidity in the air supply serving at least 75% of the occupied spaces in the building
- Sensors must be non-dispersive infrared and provided by a reputable manufacturer
- Sensors should be either self-calibrating or regularly calibrated as per manufacturer’s direction
- Sensors must provide real-time monitoring with a data output interval of at least once every 10 minutes
- Provide BAS readouts that demonstrate how IAQ is monitored on the BAS
- Provide brief narrative explaining how BAS readings are used to inform building operations & maintenance procedures
Note that this question is pertinent to the sensors installed prior to and/or during tenancy and must be answered regardless of whether the systems are managed by the tenant.
Documentation
- Purchase orders, installation records, maintenance work orders or photos of sensors installed
- Screenshots of BAS readings
- Narrative of IAQ monitoring activities
Suggested Lead
In-house, with third-party support
Value
- Monitor IAQ parameters (temperature, relative humidity, and indoor air contaminants) through real-time air quality sensors
- HVAC systems can be adjusted to respond to IAQ issues in real-time to maintain a healthy indoor environment and occupant comfort
Description
Maintaining adequate ventilation and thermal comfort within the built environment is important for occupant health and safety, comfort, and productivity.
Having sensors measure CO2 concentrations, temperature and relative humidity within the building HVAC system can provide useful information to help manage indoor air quality.
References
None
Adapted BB 3.0 Question
Question 11.04.01 – Have real-time air quality sensors been installed since the start of the COVID-19 pandemic?