Fire blocking is the installation of solid material inside wall and ceiling cavities to interrupt the path a fire would follow through concealed spaces. Utah building code (IRC R302.11) requires fire blocking at ceiling and floor lines, at every 10 vertical feet in tall walls, and at any location where pipes, wires, or other penetrations pass through framing members. It is a mandatory part of every framing inspection and is included as standard in all RainFire Builders framing projects.