Which device is installed in a ceiling membrane to limit radiative heat transfer through an air inlet or outlet opening?

The ceiling radiation damper is specifically designed to limit radiative heat transfer through air inlet or outlet openings in a ceiling membrane. This device plays a crucial role in enhancing the fire safety and energy efficiency of a building. In the event of a fire, the damper automatically closes to prevent the transfer of heat and smoke through these openings, thereby protecting the integrity of the space below and minimizing the risk of fire spread.

Ceiling radiation dampers are often required by building codes in certain applications, particularly in areas where fire-rated ceilings are present. Their proper installation ensures that the thermal barrier created by the ceiling is maintained, allowing the building's fire safety systems to function effectively.

Other options, like ceiling fans and air vents, do not serve this specific purpose related to limiting heat transfer during fire scenarios. A chimney cap, while it may prevent rain and debris from entering a chimney, is unrelated to the functions of air inlet or outlet openings in ceilings.