Where safety and fire protection are crucial, choose FireCoil. Raynor FireCoil fire-rated rolling doors are the standard for facilities that require a listed fire door in a rated fire wall. FireCoil doors are provided with fusible links that automatically release to close the door at 165°F. The door's descent can also be triggered by smoke and heat detectors, a building's alarm system, or solid state release devices. FireCoil doors are UL, C-UL and CSFM-labeled.