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3.3.1.22.(2)
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Application
Application 1: 
Minimum fire-resistance rating of fire separations that separate a laundry room in a floor area that is not within a dwelling unit from the remainder of the building, where the fire-resistance rating required by Subsection 3.2.2. is permitted to be less than 1 h for:
  • the floor assembly above the floor area, or
  • the floor assembly below the floor area, if there is no floor assembly above.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A of residential occupancy.
Application 2: 
This also applies to tents and air-supported structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1).
Exceptions: 
except as stated in:
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Intent
Intent 1: 
To exempt the separations of laundry rooms from the application of Sentence 3.3.1.22.(1) by permitting a reduction in fire-resistance rating from 1 h to 45 min on the basis that the floor assemblies in the building need not have a fire-resistance rating of more than 45 min and, if they failed, it would negate the remaining rating of the fire separation between the laundry room and the remainder of the floor area.
This is to supersede the requirements of Sentence 3.3.1.22.(1) and permit a lower minimum fire-resistance rating on the basis that the rating of the separation need not be any more than the other assemblies that enclose the room.
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