Custom Cut Shingles for Coverage

What happens here

Following the discussion on nail placement, the video demonstrates adjusting a shingle, possibly part of the starter course or an edge shingle, to ensure proper overlap. The roofer lifts an installed shingle and uses a utility knife to make a precise cut along its edge or tab. This cutting technique is essential for creating proper shingle staggering, ensuring complete coverage of underlying nails, and forming a clean, watertight seal at the edges or valleys of the roof. The cut helps to customize the shingle fit, preventing exposed nails or ensuring the correct offset for subsequent shingle courses.

Goal: Ensure all nails are covered and shingles are properly staggered and watertight.