Construction Term of The Day - Firestopping In this video, I break down what firestopping is, why it matters, and how products like fire caulk and fire-rated assemblies help slow the spread of fire and smoke through walls, floors, and penetrations. These details are easy to overlook, but they play a critical role in protecting occupants, maintaining code compliance, and passing inspections. Whether you’re new to construction, working in the field, or reviewing plans, understanding firestopping h