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3.2.3.12.(1)
OP3
ObjectiveOP3 Protection of Adjacent Buildings from Fire
Attribution
Application
Application 1: 
Maximum area of unprotected openings in any exposing building face of an unsprinklered building, where the openings are glazed with:
  • glass block conforming to the requirements of Article 3.1.8.14., or
  • wired glass assemblies conforming to D-2.3.14. in Appendix D.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.
Exceptions: 
except as required in Sentence 3.2.3.7.(8), which applies to the sequence of application of Article 3.2.3.12. with respect to Sentences 3.2.3.7.(1) to (6).
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Intent
Intent 1: 
To supersede the requirements of Sentence 3.2.3.1.(1) and permit an increase [doubling] in the area of unprotected openings, if certain conditions are met [openings glazed with certain types of assemblies].
This [the conditions] is to limit the probability of the spread of fire from the subject building to an adjacent building, which could lead to damage to the adjacent building.
Intent 2: 
To direct Code users to Article 3.1.8.14. and D-2.3.14. in Appendix D for requirements pertaining to glass block and wired glass assemblies.
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