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3.1.13.6.(5) | Application | Intent |
| OS1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Interior ceiling finish with a maximum flame-spread
rating of 25 for corridors and occupancies referred
to in Sentences 3.1.13.6.(1) and (4).
Exceptions:
except for light diffusers and lenses, as stated in Sentence 3.1.13.4.(1).
This applies to buildings described
in Sentence 1.3.3.2.(1) of Division A, except buildings that
are sprinklered throughout.
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| Intent | Intent 1: To limit the probability that interior ceiling finishes
that have an inappropriately high flame-spread property will be used in certain
building locations, which could lead to the spread of fire across the exposed
surfaces of the finishes, which could lead to harm to persons.
Intent 2: To exempt interior ceiling finishes used in certain locations
from the application of Sentence 3.1.13.2.(1), which would otherwise
permit higher flame-spread ratings, on the basis that a lower flame-spread
rating is needed in these locations to protect persons during evacuation.
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