What types of loads are supported by the roof deck?

The correct answer reflects the roof deck's capacity to support various types of loads, which include immobile loads, such as the weight of the roofing materials, as well as mobile loads, like equipment or personnel during maintenance. Roof decks are designed to handle both static loads, which do not change in position, and dynamic loads, which do change, such as those caused by wind, snow, or temporary structures placed on the roof. This versatility ensures the integrity and safety of the roofing system under different conditions.

In contrast, the options focusing solely on stationary loads, mobile loads, or only the weight of roofing materials do not encompass the full range of loads that a roof deck can withstand. Each of these choices neglects the importance of considering both types of loads, which is crucial for proper roof design and structural integrity.