AHR designed and installed, turn-key, the Tundish Dump Ventilation Systems for the caster area of this steel mill. AHR was requested to supply a retractable roof that would better allow for an enclosed vent hood to contain the dust and fumes during the dumping and cleaning out of the Tundish area bunker. This had been a problematic system in the past as that it was not enclosed, and multiple side draft hood designs proved to be in-effective. This system has been in use now for several years and has performed better than originally expected.