GAF Coil-Nail Wire: Keep Sharp Fastener Remnants Flush
Bulletin dated: February 1, 2021 revision
GAF warns that sharp wire remnants left by coil nails can puncture roofing installed above them. The fastening surface must be flush and suitable for the next layer
GAF technical bulletin: Installed fasteners must be flush to the surface.
What this means for your roof
GAF warns that sharp wire remnants left by coil nails can puncture roofing installed above them. The fastening surface must be flush and suitable for the next layer. This is a small installation detail that deserves attention before underlayment or shingles conceal it.
A useful question for your contractor
Were protruding fasteners and sharp coil-wire remnants corrected before covering them?
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: February 1, 2021 revision. The date shown identifies the manufacturer document used for this summary.
Read GAF: Installed fasteners must be flush to the surface
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.