venting through the wall?

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Philbert, Dec 5, 2012.

  1. Philbert

    Philbert New Member

    Messages:
    5
    Location:
    Toronto,Ontario,Canada
    I would like to move a sink in the basement I know that inspectors prefer the venting to be through the roof but in this case it isn't practical, so can it go through the wall so long as it a) is above the floodline and a min of 3" pipe as it exits to the outside to avoid it from freezing shut. I am in Ontario, Canada
    Thank you
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,038
    Location:
    Bothell, Washington
    The local inspector would know. We run vents on the outside and through the roof sometimes here. And of course much of the older Seattle homes have the plumbing outside the walls.
    Those all go through the roof under the eaves and are at least six inches higher then the roof. More like 12"

    Vents can't daylight under a window.
    The whole idea is to get the venting up high where the winds can blow it "away" from your home.
    Last edited: Dec 6, 2012
  3. Philbert

    Philbert New Member

    Messages:
    5
    Location:
    Toronto,Ontario,Canada
    thank you very much
  4. shortcuttomoncton

    shortcuttomoncton New Member

    Messages:
    17
    Location:
    Ontario
    Yeah, my sister in law recently did this in Toronto. Straight out, and up and around the eave.
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,677
    Location:
    Cave Creek, Arizona
    If you intend to just stick it out of the wall, then NO. If you will turn it upward and go above the roof, then "maybe" if you can convince an inspector that even the larger size will not freeze over because of its length. The inspectors don't "like" vents through the roof, most codes INSIST on it, so it makes no difference what the inspectors "like".
  6. Philbert

    Philbert New Member

    Messages:
    5
    Location:
    Toronto,Ontario,Canada
    I just obtained a copy of the 2006 Ontario Plumbing code and once I decoded the relevant section (7.5.6.7 part 4) I found that allows so long as it exits the wall at a maximum of 45 degrees and is atleast a 3" pipe size as well as some minimum clearance requirements for windows, doors, ground and fresh air inlets .
    Last edited: Dec 7, 2012
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