§ 910.3.2.1. Gravity-Operated Drop-Out Vents.

Latest version.

Automatic smoke and heat vents containing heat-sensitive glazing designed to shrink and drop out of the vent opening when exposed to fire shall fully open within five minutes after the vent cavity is exposed to a simulated fire, represented by a time-temperature gradient that reaches an air temperature of 500°F (260°C) within five minutes.

(Ord. 2017-0003 § 156, 2017.)

                    
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