6.2.3.8.(6)ATTRIBUTION:
Functional Statement:
F81
To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.
Objective:
OH1.1
APPLICATION:
Exhaust ventilation systems, in buildings to which Part 6 applies [see Sentence
1.3.3.2.(1) of Division A for application
of Part 6], that:
- serve rooms that are accessible only from a storage garage,
- do not exhaust any contaminants that would adversely affect the air quality in the storage garage, and
- are designed in accordance with Sentence 6.2.3.9.(3).
INTENT:
To limit the probability that, when an exhaust system is
not operating and under conditions of positive stack effect pressure, airborne
contaminants (e.g. exhaust fumes from a parking garage) will enter the building,
which could lead to negative effects on the air quality of indoor spaces,
which could lead to harm to persons.
To exempt certain situations from the application of Sentence
6.2.3.8.(5), where there is little risk of airborne contaminants entering
the building.