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Thread: Roof Vent Stack Boot Repair

  1. #1
    DIY Member edwardh1's Avatar
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    Jul 2006
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    South Carolina
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    64

    Default Roof Vent Stack Boot Repair

    My adult son has a 8 year old home and the pvc vent pipe penetrations in the roof leak around the pipe where it goes through the boot.

    Is there a cure for this (like sliding another boot over the present one or is it normal to replace the whole roof "jack"- which is a lot more work for an only 8 year old house.
    house is 2 story on a high foundation so he can not do it himself, but wants to know what the usual repair method is.
    thanks.
    Asphalt shingle, upstate South Carolina area

  2. #2
    Plumber krow's Avatar
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    Feb 2008
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    Ontario, Canada
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    906

    Default

    I assume you are talking about the "roof flashing" aroung the pipe.

    If so, the right repair is to replace it.

    To quick fix it, silicone around where the leak is coming from , on the roof side

  3. #3
    DIY Junior Member Daltex's Avatar
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    Jan 2008
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    Texas
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    15

    Default

    It is common for roofers to replace the roof jack however; a new rubber gasket is almost always all that is needed.

  4. #4
    Moderator & Master Plumber hj's Avatar
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    Aug 2004
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    Cave Creek, Arizona
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    25,633

    Default jack

    What kind is it? Here the roof jacks are a simple cone on a square piece of metal. The pipe slides through it and then roofing cement is applied around it.

  5. #5
    DIY Member themp's Avatar
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    Feb 2008
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    NC
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    Default Oatey Roof Flashing

    I just use this:

    http://www.lowes.com/lowes/lkn?actio...940&lpage=none

    and pop it over the bad one. Sometimes I cut it down so it has a smaller lip all around. I have been doing this for 24 years on my house and it has never leaked. I check them spring and fall. I have eight of these on the back side of the house as the plumber was just into running them to the roof instead of tieing them together. I also have the old galvanized metal ones and they have rusted at this point in time.

    My son has a vent so high on his roof and at such a steep angle, we are able to just barely with a very long ladder reach up and pop one over the old one when his started leaking.

    Now maybe a hurricane or tornado could rip this off, but normal winds/storms seem to cause no problem.
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    Last edited by Terry; 01-06-2010 at 06:53 PM.

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