§ Chapter 31 IRC 2018
Vents
4 entries from Chapter 31 of IRC 2018, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.
§ 01 Sections
All 4 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
P3101.1
IRC 2018 Vent Required: Does Every Fixture Need Its Own Vent?
P3101.1
Does every plumbing fixture need its own vent under IRC 2018?
Does every plumbing fixture need its own vent under IRC 2018?
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P3103.1
IRC 2018 Vent Roof Termination: How High a Vent Must Extend Above the Roof
P3103.1
How high must a vent pipe terminate above the roof under IRC 2018?
How high must a vent pipe terminate above the roof under IRC 2018?
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P3105.1
IRC 2018 Trap to Vent Distance: How Far a Trap Can Be From Its Vent
P3105.1
How far can a trap be from its vent under IRC 2018?
How far can a trap be from its vent under IRC 2018?
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P3113.1
IRC 2018 Vent Pipe Sizing: Minimum Diameter Based on DFU Load and Length
P3113.1
How are vent pipes sized under IRC 2018?
How are vent pipes sized under IRC 2018?
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§ 02 Chapter navigation