A roof walk connects visible defects to likely water paths and repair implications. We look at seams, flashings, drains, edges, penetrations, equipment supports and interior leak reports. The inspection distinguishes a local defect from a condition extending into adjoining layers. Photographs and marked locations make recommendations traceable. If evidence remains incomplete, we identify an opening or test that could change the decision. Drone imagery may help review broad areas or access constraints; infrared work can target further investigation when conditions suit it.