•  Measure the site and confirm roof profile, opening size, wall interfaces, overlaps, and drainage direction.
• Choose suitable metal type, thickness, coating, and compatible fixings for the environment.
• Cut, fold, and form parts to approved dimensions; remove sharp burrs and protect finished surfaces.
• Dry-fit and install with correct laps, fasteners, sealants, and movement allowances.
• Inspect continuity, alignment, and water-shedding direction.

Supplied photo: The roof-opening image illustrates a penetration detail where custom flashing and careful sealing are important. It is included here as a site-detail example rather than a fabrication-shop photograph.

Quality focus: Accurate dimensions, material compatibility, neat folds, and secure weatherproof terminations reduce rework and leak risk.