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[F] 910.3 Smoke and Heat Vents
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Smoke and heat vents shall be listed and labeled to indicate compliance with UL 793 or FM 4430.
Smoke and heat vents shall be located 20 feet (6096 mm) or more from adjacent lot lines and fire walls and 10 feet (3048 mm) or more from fire barriers. Vents shall be uniformly located within the roof in the areas of the building where the vents are required to be installed by Section 910.2 with consideration given to roof pitch, sprinkler location and structural members.
The required aggregate area of smoke and heat vents shall be calculated as follows:
For buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1:
(Equation 9-3)
where:
For unsprinklered buildings:
(Equation 9-4)
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