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 #
Owner or landlord maintains Outdoor Air, Residential
Question
Do measured Outdoor Air (OA) ventilation rates in owner or landlord-controlled areas meet minimum carbon dioxide (CO2), ASHRAE 62.1 or ASHRAE 62.2 thresholds?
Applicability
Multi-Unit Residential
Tenant occupied building
Answer & Scoring
Select all that apply:
- Yes – CO2 concentrations below 800ppm = 1 point
- Yes – OA rates meet current ASHRAE 62.1 Table 6.2.2.1 minimum requirements (corridors and common areas) = 1 point
- Yes – OA rates meet current ASHRAE 62.2 minimum requirements (residential spaces) = 1 point
- No = 0 points
Max of 3 points
Requirements
- Implement a process for reviewing the efficiency of tenant HVAC equipment at lease expiry, with recommendations to address any deficiencies related to:
- Energy efficiency
- Carbon reduction
- Describe corrective actions planned and implemented, and person responsible
Documentation
- Narrative describing the process to assess and improve HVAC equipment at lease expiry
Suggested Lead
In-house
Value
- Excessive carbon dioxide (CO2) in a building can cause adverse health effects. CO2 levels should be kept under the recommended level of 800 ppm to prevent negative impacts on building occupants
- Ventilate indoor spaces with an adequate amount of outdoor air to manage CO2 levels and indoor air contaminants
- Engage qualified professionals to perform indoor air testing in tenant-controlled areas to confirm that CO2concentrations in compliance
- Alternatively, install sensors in tenant spaces to monitor CO2 levels and confirm they are below the recommended level
Description
Where tenants manage HVAC equipment, owner or landlords should be aware of operations and maintenance practices within tenant spaces to check that tenant practices are not negatively impacting adjacent or base building components that are the owner or landlord’s responsibility.
At lease expiry the owner or landlord has the opportunity to replace inefficient equipment and implement strategies that could advance the organization’s energy efficiency and net zero goals.
References
Adapted BB 3.0 Question
New in BOMA BEST 4.0