What to ask
- Nails per shingle for your product
- Hand nail vs pneumatic and gun setup
- Starter and ridge fastening details
- Whether the crew follows the manufacturer print
Why it shows up later
Under-driven or high nails, and missing fasteners, lift in the first real wind event.
We follow product instructions and note wind-related details in Better/Best packages when they apply.
Inspection tip
After a storm, look for creased tabs and empty nail holes — signs of uplift, not just age.