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    3 documents

    1. PDF
      DocumentGAF Technical ServicesInstallation & Repair

      GAF TAB-C 2015-31: Repairing Hail Damage to Granule-Surfaced Membranes

      GAF's commercial technical advisory bulletin on hail that scours granules off a granule-surfaced membrane: what to inspect for, when coating the membrane is an acceptable repair, and the Diamond…

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    2. PDF
      DocumentGAF Technical ServicesInstallation & Repair

      GAF TAB-R 2017-164: Underlayment Requirements for Hips and Ridges on a Single-Plane Repair

      One-page GAF bulletin on how underlayment must be lapped over a hip when only one roof plane is being replaced, including removing end nails on the adjacent plane and re-nailing — the detail that…

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    3. PDF
      DocumentGAF Residential Consumer ServicesInstallation & Repair

      GAF TAB-R-178: Mixing New and Aged Asphalt Shingles

      GAF's bulletin on whether new shingles can be used to repair an aged roof — it allows it when dimensions and exposure match, warns that a perfect color blend is "not likely," forbids trimming…

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      Recently Added
      • JOTRepairability Assessment for Evaluating Asphalt-Composition Shingle Roof Repairs (verbatim transcription)Journal of the National Academy of Forensic Engineers — Chad T. Williams, PE · added Aug 28
      • I(ICorrelating Hail-Strike Bruises With Hailstone Size, Roof Pitch, and Storm DirectionInterface (RCI, Inc.) — Petty and Kasberg, EES Group, Inc. · added Aug 28
      • August Bank Holiday Tool Offers @ ParksideTools · Aug 30
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