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3.1.5.4.(4)
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Application
Application 1: 
Combustible vertical glazing having a flame-spread rating higher than 75 but not more than 150, installed no higher than the second storey in buildings described in Sentence 1.3.3.2.(1) of Division A that are required to be of noncombustible construction, where the aggregate area of glazing is not more than 25% of the wall area of the storey in which it is located and:
Application 2: 
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] that are required to be of noncombustible construction, as stated in Sentence 9.10.6.1.(1).
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Intent
Intent 1: 
To exempt certain combustible materials from the requirements of Sentence 3.1.5.4.(3) if certain conditions are met, on the basis that the materials could significantly contribute to fire growth and spread.
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