So is selecting any text and clicking the Insert Link button.
Racked shingles.
3 nailed at best.
Does not typically require a 6-nail pattern for a 12/12, but above that pitch, starting with a 16/12, then yes.
Dabs of sealant would be useless.
Complete tear-off and start fresh. This roof is not cost effeiciently repaired, unless they want new yearly band-aides installed.
Ed