To limit the probability of an inadequate resistance of air barrier system components to air pressure loads, which could lead to:
Where the air barrier system separates a garage, or suite containing a garage, from residential space, this is to limit the probability of a loss of airtightness, which could lead to gas and fumes migrating from the garage into the remainder of the building, which could lead to the accumulation of gas and fumes and their subsequent ignition by a nearby ignition source, which could lead to a fire or explosion, which could lead to harm to persons.