Unmasking Weld Wonders: What Common Defects Do Welding Inspectors Look For? In this episode of the Industrial Welding Inspection Podcast, host John Masseny takes you behind the scenes of structural safety and explores the vital role welding inspectors play in modern construction. Starting with a gripping story of a near-disaster in a 300-floor skyscraper, John highlights how an overlooked weld could have led to catastrophic failure—and how a sharp-eyed inspector saved the day. You’ll learn about the most common welding defects that inspectors are trained to identify, including porosity, cracks, incomplete fusion, slag inclusions, undercut, and spatter. John explains how each flaw can affect structural integrity and what methods are used to prevent them.