// CODE SNIPPET
P-1108.1 Vent Header Permitted
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Stack vents and vent stacks shall be permitted to connect into a common vent header at the top of the stacks and extend to the open air above the roof at one point. Such header shall be sized in accordance with the requirements of Table P-1110.4. As per Section P-1105, the size of the horizontal branch entering a stack shall have a vent of the same size; therefore, one of the stacks entering into a common vent header shall be of the same size as the branch entering the stack and shall maintain that size through the roof. Other sizes of the header can then be sized as per Table P-1110.4.
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