Fire safety management: Replacement procedure of fire doors for an existing building

The replacement procedure of fire doors in an existing building is criticized. There were nine vertical vents left open for over ten days in each lobby with two fire doors before fixing glass panels and exit signs. This arrangement is demonstrated to be not acceptable by studying the consequence of a fire in an office with the two-layer zone model CFAST. Smoke will spread into the other parts of the building quickly. Disaster similar to a previous local big fire during building refurbishment might be resulted. A better planning and supervision schedule of replacing fire doors should be provided by the facility manager.