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  1. #1
    Bob Illingworth's Avatar
    Bob Illingworth Guest

    Default Wrong pipe flashing

    Hope this is the right place for this.

    I am having a new roof itstalled in a 1/12 pitch roof and I noticed the pipe flashings the roofer is installing are for a 4/12 or steeper roof.

    I think they look wrong! as they angle backwards.

    Anybody see a problem now or later other than cosmetic?

    Binding the rubber inserts or undue stresses?

    Thanks.

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  2. #2
    Join Date
    Mar 2007
    Location
    Columbus GA
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    3,746

    Default Re: Wrong pipe flashing

    Is this a shingle roof?
    If so, Wrong.
    You should not use shingles on a 1 in 12 pitch.
    And as for the flashings, they (what you described) are not designed for flat roofs.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
    chris mcintyre's Avatar
    chris mcintyre Guest

    Default Re: Wrong pipe flashing

    Quote Originally Posted by Bob Illingworth View Post
    ..... the pipe flashings the roofer is installing are for a 4/12 or steeper roof.
    That is because 4/12 is the standard (minimum) slope for shingled roofs.


  4. #4
    Michael Garrity's Avatar
    Michael Garrity Guest

    Default Re: Wrong pipe flashing

    "That is because 4/12 is the standard (minimum) slope for shingled roofs."

    Are you sure?


  5. #5
    Bob Illingworth's Avatar
    Bob Illingworth Guest

    Default Re: Wrong pipe flashing

    Thanks Guys.

    It's the rubberized roll roofing put down with a torch.


    Bob


  6. #6
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    26,252

    Default Re: Wrong pipe flashing

    Quote Originally Posted by Bob Illingworth View Post
    I noticed the pipe flashings the roofer is installing are for a 4/12 or steeper roof.

    I think they look wrong! as they angle backwards.

    Could you describe the flashings, material, shape, etc.?

    Standard lead flashings are adjustable for roof slope from dead level to ... well, quite steep, the corrugations around the base allow for that flexibility.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    26,252

    Default Re: Wrong pipe flashing

    Quote Originally Posted by chris mcintyre View Post
    That is because 4/12 is the standard (minimum) slope for shingled roofs.

    The standard minimum slope is 2-1/2 in 12 as I recall.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  8. #8
    chris mcintyre's Avatar
    chris mcintyre Guest

    Default Re: Wrong pipe flashing

    Quote Originally Posted by Michael Garrity View Post
    "That is because 4/12 is the standard (minimum) slope for shingled roofs."

    Are you sure?
    Quote Originally Posted by Jerry Peck View Post
    The standard minimum slope is 2-1/2 in 12 as I recall.
    OK, maybe standard was not the best word to use, perhaps "rule of thumb", or "typical" would have been a better choice. Some manufactures allow 2/12 (as best I can remember) if certain underlayment requirements are met.


  9. #9
    chris mcintyre's Avatar
    chris mcintyre Guest

    Default Re: Wrong pipe flashing

    Quote Originally Posted by Bob Illingworth View Post
    I am having a new roof itstalled in a 1/12 pitch roof and I noticed the pipe flashings the roofer is installing are for a 4/12 or steeper roof.

    Binding the rubber inserts or undue stresses?
    Quote Originally Posted by Bob Illingworth View Post

    It's the rubberized roll roofing put down with a torch.
    While I am not that familiar with the membrane roofing, and we don't have a picture of the pipe collar, from your description it definitely sounds wrong. Looking around a little it seems that the self adhesive collar is the standard, excuse me, I meant typical collar.

    BLACK EPDM P/S PIPE SEAL, 1-6" PIPE SIZE (1)


  10. #10
    Bob Illingworth's Avatar
    Bob Illingworth Guest

    Default Re: Wrong pipe flashing

    Hi Chris

    Here is a picture of a similar flashing.

    The pags says to 40 degrees but picture it laying flat with the high side toward the bottom of the roof.

    I noticed today the roofing material surrounds the raised portion of the flashing leaving a small puddle at the lower side?

    When I was a kid and did roofing the lower side was open and flashing was showing so it could drain.

    I'll take a picture tomorrow and post it.



    Thanks.

    Bob












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