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9.10.17.10.(1)
OS1++
Attribution
(a)
Application
Application 1: 
Protection of foamed plastics from adjacent spaces in a building, where the foamed plastics form part of wall or ceiling assemblies in combustible construction. This applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except:
  • for the protection of foamed plastics from adjacent concealed spaces within attic or roof spaces, crawl spaces, and wall assemblies, and
  • as stated in Sentence 9.10.17.10.(2), which applies to thermosetting foamed plastic insulation having a flame-spread rating of not more than 200, used in factory-assembled doors in storage garages serving single dwelling units.
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Intent
Intent 1: 
To state the application of Subsections 9.29.4. to 9.29.9.
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