How do engineers know a building system will perform when it matters most? In this episode of Building with Metal, host Kathi Miller welcomes back Bob Zabcik of Z-Tech Consulting—one of our most popular guests—to explore the science behind fire and earthquake testing. Bob takes us inside today’s testing laboratories to explain how building systems are evaluated under extreme conditions and why those results play such a critical role in building codes, product development, and public safety. We discuss what engineers are really looking for during fire tests, how seismic testing has evolved, and why testing is about far more than simply passing or failing. The conversation also features an incredible look at multi-hazard testing, where researchers subjected a full-scale building to a simulated earthquake before exposing it to fire—providing valuable insight into how structures perform during real-world disasters. Whether you’re an architect, engineer, contractor, or simply fascinated by how buildings are designed to withstand nature’s toughest challenges, this episode offers a behind-the-scenes look at the science that helps make our built environment safer and more resilient.