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Thread: Vent termination
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10-19-2007, 07:37 AM #1
Dave Gilstrap Guest
Vent termination
Can anyone tell me how high the plumbing vents should terminate above a flat roof in snow country? I have not inspected the home yet so I can't say yet how high they are, and the IRC book doesn't give a definate answer. P3103.1 Roof extensions
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10-19-2007, 07:42 AM #2
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Re: Vent termination
Is that a good idea?
Originally Posted by Dave Gilstrap
You need to check with your local AHJ.
6" is the minimum height above a roof, then the AHJ adds to that so the vent will be above snow height - at least the AHJ *should* add to that.
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10-19-2007, 09:13 AM #3
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Re: Vent termination
dave,
906.7 calif. plumb. code frost or snow closure "vent terminals shall be a minimum of two inches in diameter but in no event smaller than the required vent pipe.. thechange in diameter shall be made inside the building at least one foot below the roof in an insulated space and terminate not less than 10 inchesabove the roof ,or as required by the ahj.
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