Venting through side of house (gable end)

Discussion in 'Canadian Plumbing Code Questions' started by dodge1930, Jul 28, 2015.

  1. dodge1930

    dodge1930 New Member

    Joined:
    Jun 29, 2010
    Location:
    Montreal. QC
    Quebec, Canada,

    Is it legal to vent through the side of the house at the top of the gable?
    My vent pipe will come into the attic then out through the side(if allowed)
    I am trying to avoid having to put a hole in the roof!

    Thanks
    Stephen
     
  2. lma1

    lma1 New Member

    Joined:
    Nov 15, 2013
    Occupation:
    Prof Engineer
    Location:
    Vancouver, BC
    In general & in the situation you described, it’s NOT legal “to vent through the side of the house at the top of the gable.” You may, however, combine that new vent with any other already in the vicinity that goes thru the roof to outside air as you are “trying to avoid having to put a hole in the roof!” You must also check that the combined sections of vent have the capacity to carry the added load.

    This is my best interpretation of the 2012 BCPC. I believe, as Terry mentioned, most plumbing inspectors would not approve a plumbing vent thru the side of the house even If it’s an existing structure.
     
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