Staining appears to be a fastener defect
and not a shingle defect…
“Chinese” Roofing nails…
Defective roofer.
Agreed Kenton.
Blaming nails Mr. Hagarty is just wrong.
They did not intentionally install themselves.
I would be offended if I was a nail.
Doug,
Why would you expect to put 2 nails at top of each slot instead of spacing 6 nails evenly across the 36" wide shingle?
WTF!?!