Shingle Installation: Starter Strips and Nailing

What happens here

This step details shingle installation errors. First, the demonstrator shows that if a starter strip isn't installed at the eave, water can blow directly under the first course of shingles. Next, he highlights issues with nail placement: nails driven too low or too high. Nails placed too low are vulnerable to water blowing under them, while nails placed too high can cause shingles to detach under high winds. He uses a leaf blower to demonstrate how improperly secured shingles can blow off the roof.

Goal: Properly install shingle starter strips and ensure correct nail placement to prevent blow-offs and water intrusion.