6.2.3.8.(5)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
Discharge location of exhaust ventilating systems
serving buildings described in Sentence
1.3.3.2.(1) of Division A.
This also applies to buildings to which Part 9 applies [see Sentence
1.3.3.3.(1) of Division A for application
of Part 9], with respect to:
- mechanical ventilating systems other than self-contained systems serving single dwelling units, as stated in Sentence 9.32.1.2.(2),
- the ventilation of storage garages for more than 4 motor vehicles in residential occupancies, as stated in Sentence 9.32.1.1.(3), and
- the ventilation of all occupancies other than residential occupancies, as stated in Sentence 9.32.1.1.(2).
INTENT:
To limit the probability that:
- pollutants or water vapour will not be removed from the building, or
- when an exhaust system is not in operation and conditions of positive wind or stack effect pressure exist, airborne contaminants (e.g. exhaust fumes from a parking garage) will enter the building.
This is to limit the probability of negative
effects on the air quality of indoor spaces, which could lead to harm to persons.