(1)
Except as provided in Article 3.1.8.8., a fire damper having a fire-protection rating conforming to Sentence 3.1.8.4.(2) shall be installed in conformance with Article 3.1.8.10. in ducts or air-transfer openings that penetrate an assembly required to be a fire separation.
(2)
Except as provided in Article 3.1.8.9., a smoke damper or a combination smoke/ fire damper shall be installed in conformance with Article 3.1.8.11. in ducts or air-transfer openings that penetrate an assembly required to be a fire separation, where the fire separation
(a)
separates a public corridor,
(b)
contains an egress door referred to in Sentence 3.4.2.4.(2),
(c)
serves an assembly, care, care and treatment, detention or residential occupancy, or
(d)
is installed to meet the requirements of Clause 3.3.1.7.(1)(b) or Sentence 3.3.3.5.(4). or 3.3.4.11.(4).