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Roof inspection of GAF Shingles Knoxville, TN.

Roof Inspection of Old Dimensional GAF Shingles.  Shingles have a granular loss.  There is some weathering of these shingles as well.

garage roof

  1. 1
    Exposed nails and nail holes in ridge

    Nail on the left is exposed leaving it open to rainwater. 

    Nail on the right has punched through shingle leaving an open hole for water penetration.

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  2. 2
    not staggered correctly

    This is an incorrect stagger. The correct stagger would look like a stair step every 6 inches. Here you can see its back and forth leaving the shingles in straight rows. 

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  3. 3
    Random damaged shingles

    Random damaged shingles.

     

    Random shingles need to be replaced.

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  4. 4
    valley woven incorrectly

    Valley woven incorrectly

    The top of the valley is cut bottom is woven. It should be one of the 2, not both. Now water can run under the bottom woven shingles. Both valleys are like this.  

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Main roof

  1. 1
    Incorrect ridge cap shingles.

    There are 2 different types of shingles here the 3 tabs, and ridge cap. Ridge cap should be the only shingles here.  

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  2. 2
    Failing pipe boots

    As you can see the pipe boots are starting to dry rot and crack. Its time to replace them. 

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  3. 3
    Old satellite dish brackets and failing

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  4. 4
    Very damaged area

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  5. 5
    Penetration in roof

    Large staples stuck in the roof through shingles. 

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