Rear slope of this new roof

  1. 1
    Valley Nail Spacing Incorrect

    Some valley nails are inside the 6 inches, this could be an indicator of water leaks.

    Click the link below to see the Advisory.

    GAF Steep Slope Technical Advisory

    Go To Pin
  2. 2
    Improper Nail Pattern On Entire Roof

    Shingle nail patterns are terrible.  They are too close to the union.


    This is a major problem and will cause leaks in the roof.  The nail pattern is not properly spaced over the entire roof.

    Technical PDF From GAF On Improper Driven Nails


    Proper nail patterns from GAD Pro Field Guide:


    Go To Pin