Products 08/11/2010 Fire-Rated Joint System: Handles Vehicle Loads EMSHIELD SJS FR-1 Fire-Rated Seismic Joint System is a watertight joint for decks and floors. The joint system is installed from above and requires no invasive anchors. SJS FR-1 is able to handle vehicle loads and can be used in parking decks, stadiums and other high-traffic structures. The system consists of two horizontal fire-rated joints preassembled around a composite spline. The spline is the attach point for traffic plates that bear the loads. The fire-resistant foam components also absorb sound and vibration. The system can be used in joint openings from 4-in.