The dampers that need to be installed include the air cooler exhaust dampers and the emergency generator room air inlet dampers
1 It depends on whether the room Emergency generator is considered a weathertight space in the load line convention. . If weathertightness is required, a closure device must be installed;
2 According to SOLAS ventilation requirements, all ventilation systems must be fitted with closure devices to prevent the spread fire.
In summary, it is considered that a closing device must be installed.