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  1. #1
    Join Date
    Nov 2009
    Location
    Massachusetts
    Posts
    55

    Default Valley installation question

    What are your opinions on the valley in the photo.

    I'm not comfortable with it. I did not have thorough access to the attic areas nearby for review from tat perspective.

    The roofing to the left is new, while to the right is existing.

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    Last edited by Tom King; 10-20-2014 at 08:59 AM. Reason: spelling

  2. #2
    Join Date
    Nov 2009
    Location
    Massachusetts
    Posts
    55

    Default Re: Valley installation question

    Quote Originally Posted by Kevin Wood View Post
    No need to think about it. It is done wrong according to the design of those shingles.
    Agreed.

    Sometimes I look at something not right and wonder if there is something I am missing but given all I can see, it is potential, even likely source of a leak.


  3. #3
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
    4,829

    Default Re: Valley installation question

    Its a woven valley, whats wrong with it?

    The value of experience is not in seeing much, but in seeing wisely.

  4. #4
    Join Date
    Feb 2008
    Location
    Caledon, Ontario
    Posts
    4,829

    Default Re: Valley installation question

    Ooops.. Took another look, I see where its wrong.

    The value of experience is not in seeing much, but in seeing wisely.

  5. #5
    Join Date
    Mar 2007
    Location
    Fuquay Varina, NC
    Posts
    1,072

    Default Re: Valley installation question

    It should of been weaved from the bottom up. When the two different planes start to drift you would double the lower side to bring it back to center.

    Mike Schulz License 393
    Affordable Home Inspections
    www.houseinspections.com

  6. #6
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,436

    Default Re: Valley installation question

    Not only does the weave jump off to one side (this is way beyond the weave drifting ), the weave is skipped for several courses (too much work, let's just lay from the left all the way across the valley to the hip ridge on the right ).

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

  7. #7
    Join Date
    Mar 2008
    Location
    Charlotte NC
    Posts
    2,300

    Default Re: Valley installation question

    In NC if you replace more than 25% of the roof you have to replace it all. Can't believe this was permitted work and being this armature I would look for more wrong with it.

    The beatings will continue until morale has improved. mgt.

  8. #8
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,436

    Default Re: Valley installation question

    Quote Originally Posted by Vern Heiler View Post
    In NC if you replace more than 25% of the roof you have to replace it all.
    25% of the entire roof and replace the entire roof, or 25% of a roof face and replace that roof face?

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

  9. #9
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,436

    Default Re: Valley installation question

    Quote Originally Posted by Vern Heiler View Post
    In NC if you replace more than 25% of the roof you have to replace it all.
    25% of the entire roof and replace the entire roof, or 25% of a roof face and replace that roof face?

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

  10. #10
    Join Date
    Mar 2008
    Location
    Charlotte NC
    Posts
    2,300

    Default Re: Valley installation question

    Quote Originally Posted by Jerry Peck View Post
    25% of the entire roof and replace the entire roof, or 25% of a roof face and replace that roof face?
    The way it was explained to me was the entire roof. I don't know if this would hold true for tile and slate roofs.

    The beatings will continue until morale has improved. mgt.

  11. #11
    Join Date
    Apr 2008
    Location
    Massachusetts
    Posts
    191

    Default Re: Valley installation question

    It's probably a bit off-topic, but if NC uses IRC, I believe that the 25% rule was eliminated in the 2003 IRC. Even when it was in effect, it didn't require the entire roof to be replaced. It required the entire roof to comply with the requirements for new roofing. If the roof already complied, there was no need to do anything.


  12. #12
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    25,436

    Default Re: Valley installation question

    I think that requirement was moved to the Existing Buildings Code.

    If your area has adopted the IEBC then check in it.

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

  13. #13
    Join Date
    Dec 2013
    Location
    Oklahoma
    Posts
    10

    Default Re: Valley installation question

    Quote Originally Posted by Raymond Wand View Post
    Its a woven valley, whats wrong with it?
    In a woven valley, alternating shingles from each side are done to cover the valley. This would appear that that did it all from the "new" side only. IMO

    Charles Woodie Wallace
    Top2Bottom Home Inspection LLC
    Edmond, OK


  14. #14
    Join Date
    Mar 2007
    Location
    Washington State
    Posts
    565

    Default Re: Valley installation question

    I see this quite often, call it out as improper shingle installation at roof valley. Anytime shingles are installed in a way where water can enter below them it's wrong. When inspecting roofs I always look at the direction water will flow or be directed.


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