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1103.4.9.2 Chute Intakes
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Chute intakes shall comply with Section 1103.4.9.2.1 or 1103.4.9.2.2.
Where intake to chutes is direct from a corridor, the intake opening shall be equipped with a chute-intake door in accordance with Section 716 of the International Building Code and having a fire protection rating of not less than 1 hour.
Where the intake to chutes is accessed through a chute-intake room, the room shall be enclosed with 1-hour fire-resistance-rated construction. Opening protectives for the intake room shall be in accordance with Section 716 of the International Building Code and have a fire protection rating of not less than 3/4 hour. Opening protectives for the chute enclosure shall be in accordance with Section 1103.4.9.1.
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1103.4.9.2 Construction Requirements for Existing Buildings, Chute Intakes
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