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Thread: Securing Vent Rise Above Roof

  1. #1
    DIY Senior Member molo's Avatar
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    Sep 2006
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    Default Securing Vent Rise Above Roof

    I've sized the vent for the 2 hot water tanks and I need 5" diameter B vent.
    The vent must leave the basement and rise vertically to above the eve.
    Can anyone recommend a good technique to secure the vent that is above the roof? Perhaps 2 pieces of rigid metal back to the roof will work but I'm wondering if anybody knows any tricks of the trade.

    Thanks for any replies
    "Any American who is prepared to run for President should automatically, by definition, be disqualified from ever doing so."
    Gore Vidal.

  2. #2
    Moderator & Master Plumber hj's Avatar
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    Default secure

    Use an FHA standoff clamp below the roof and a longer piece of class B so it reaches through the standoff. If you have a roof overhand, go through it with a standard roof jack/flashing around the pipe.

  3. #3
    DIY Senior Member molo's Avatar
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    Default

    With B vent am I supposed to use 2 sheet metal screws per union or is that a no-no?
    "Any American who is prepared to run for President should automatically, by definition, be disqualified from ever doing so."
    Gore Vidal.

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