SUSTAINABLE BUILDINGS

Asset Classes

Focus Area

Indoor Air Quality and Hazards

Topic

Ventilation and Exhaust

Question #

I2.1b — Landlord informs, Tenant maintains Outdoor Air

Question

Do measured Outdoor Air (OA) ventilation rates in tenant-controlled areas meet minimum carbon dioxide (CO2) thresholds?

Applicability

Applicable to Light Industrial and Open-Air Retail buildings

Answer

Select one of the following:

    • Yes
    • No
    • Not applicable – the tenant-controlled areas are not considered occupied spaces

Description

Where tenants manage IAQ, owner or landlords should be aware of operations and maintenance practices withing tenant spaces to check that tenant practices are not negatively impacting adjacent or base building components that are the owner or landlord’s responsibility.

Inadequate ventilation is one of the major sources of IAQ complaints and also an indicator that the HVAC system may not be functioning optimally. Odorous or dusty operations in tenant spaces have the potential to impact adjacent tenants if the contaminants are not properly controlled. The owner or landlord should ensure any high-risk tenants are diligent with their processes so adjacent tenants are not adversely impacted.

Requirements

  1. Demonstrate CO2 concentrations below 800 ppm:
  • Refer to most recent IAQ Assessment Report and highlight section showing CO2 concentrations measured below 800 ppm in tenant-controlled spaces
  • The assessment must have been completed within the last year

Documentation

Table showing CO2 concentrations measured below 800 ppm

Adapted BB3 Question

New in BOMA BEST 4.0.

Suggested Lead

In-house, with third-party support

References

Crosswalk

TBD

Other Notes

Measurements taken with CO2 handheld devices are admissible if devices meet the following criteria: Handheld non-dispersive infrared devices with a range of 0 to 5,000 ppm and resolution of 1 ppm

Scoring

3 Points

Verification