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Thread: Roofing Question

  1. #1
    Join Date
    Jul 2007
    Location
    Grove City, Ohio
    Posts
    57

    Roofing Question

    My shop roof is a low pitch, about 2 in 12 to 2 1/2 in 12. It currently has a rubber roof that was laid over OSB and the rubber has not stuck to the OSB well. Also, the rubber roof is ugly. The shop is attached to the back of the house. I want to install a new roof and I was thinking of laying shingles over the top of the rubber roof. Any thoughts on this?

  2. #2
    Join Date
    Oct 2006
    Location
    The Heart of Dixie
    Posts
    4,268
    I don't think you can (should) put shingles on that flat of a roof. Unless you double them up. I THINK that what you need is Roll Roofing on that flat of a roof.
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  3. #3
    Join Date
    May 2007
    Location
    Kansas City, Missouri
    Posts
    13,450
    I'd agree with Jeff. Shingles aren't usually recommended unless it's at least a 4/12 or greater pitch on the roof. Even with the rubber it would be iffy.
    Darren

    To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault

  4. #4
    Join Date
    Nov 2006
    Location
    Mountain Home, Arkansas
    Posts
    11,833
    Metal.

  5. #5
    Join Date
    Oct 2006
    Location
    The Heart of Dixie
    Posts
    4,268
    I am not a fan of metal roofs, but I think Frank is right and it makes good sense on a low pitch.
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  6. #6

    low roof pitch

    I wouldnt use shingles on anything under 3/12 and then only if it was protected with ice and water shield.

    But you can use an ashpalt roll roofing called "half lap" which is a rolled roofing product that has granules on the lower portion and a nail/cement down strip for the top half.

  7. #7
    Join Date
    Nov 2006
    Location
    Waterford, MI
    Posts
    773
    Well I hope I'm not hijacking this thread too far, but within the next week or so I need put something on a 4'x6' totally flat roof on a dog house. I was thinking of using some leftover roll of ice dam then getting some roll roofing over that. Hopefully I can find a damaged bargain roll for the small amount I need. This is over a 3/4 MDO roof with wood "drip edge" on the ply edges. OK? Or should I be looking at metal or rubber for this too?
    --------------------------------------------
    Link to my ongoing ClearVue DC Install on CV's site: http://www.gallery2.clearvuecyclones...s-Mini-CV1400/

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