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3.1.13.2.(4)
ApplicationIntent
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Application
Application 1: 
Interior finish material with a maximum flame-spread rating of 150 for:
  • up to 10% of the total wall area and 10% of the total ceiling area of a wall or ceiling finish that is required by Sentence 3.1.13.2.(1) to have a flame-spread rating less than 150, and
  • up to 25% of the total wall area of lobbies described in Sentence 3.4.4.2.(2).
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: 
This also applies to the maximum flame-spread rating of interior wall, ceiling and floor finishes of buildings regulated by the provisions of Subsection 3.2.6., as stated in Sentence 3.1.13.7.(1).
Exceptions: 
except as provided in:
  • Sentence 3.1.13.7.(2), which applies to sprinklered buildings, other than buildings of Group B major occupancy and elevator cars,
  • Sentence 3.1.13.7.(3), which applies to trim and millwork in certain locations, and
  • Sentence 3.1.13.7.(4), which applies to doors in certain locations.
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Intent
Intent 1: 
To exempt portions of wall and ceiling finishes from the application of Sentence 3.1.13.2.(1) and allow a higher maximum flame-spread rating, on the basis that these surface portions will not significantly contribute to the spread of flame.
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