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9.10.4.1.(2)
ApplicationIntent
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Application
Application 1: 
Mezzanines, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where:
  • the aggregate area of mezzanines that are not superimposed does not exceed 40% of the open area of the room in which they are located, and
  • the space above the mezzanine floor is used as an open area without partitions or subdividing walls higher than 1 070 mm above the mezzanine floor.
Exceptions: 
except as exempted in:
  • Sentence 9.10.4.1.(1), which applies to mezzanines where
  • Sentence 9.10.4.1.(3), which applies to enclosed spaces above mezzanines where the enclosed space
    • does not exceed 10% of the area of the room in which the mezzanine is located, and
    • is situated such that it does not obstruct visual communication between the open space above the mezzanine and the room in which it is located, and
    • Sentence 9.10.4.2.(1), which applies to mezzanines that are superimposed above another mezzanine in the storey.
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Intent
Intent 1: 
To exempt mezzanines from the calculation of building height, if certain conditions are met that limit the size of the mezzanines and their degree of visual obstruction, on the basis that this configuration does not pose an undue fire safety risk to persons.
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