Vent pipe on roof

Thank you for any input on my question~~~What is the correct height for a vent pipe to be (from the roof line); A friend said 18"; my 2 fall short of the height. Thanks for any info...Diane
  3 answers
  • Z Z on Oct 02, 2015
    Diane, it would be best to call your county building department as things like this care vary depending on your location. Areas with more snow, say would need a taller stack.
  • Helen Helen on Oct 03, 2015
    Yes, I agree with Becky as it's an important safety issue.
    • See 1 previous
    • Z Z on Oct 03, 2015
      @Miss Diane Schultz
  • Kimber Kimber on Oct 03, 2015
    Depends on what type of vent pipe and also roof material type and yes the building dept also a local roofing company can clarify
    • Miss Diane Schultz Miss Diane Schultz on Oct 04, 2015
      @Kimber Hi! The roof is traditional shingle and the pipe looks to be pvc; (that's just a guess) not very high! I will call a local roofing company and also my code enforcer! Did the best I couls with pic! Diane