What characterizes non-warehouse storage facilities?

Non-warehouse storage facilities are defined by their structural features and their functions. The correct choice highlights that these facilities typically have a roof, which offers some protection to the stored items, but they can vary in terms of the number of walls and the materials used for their construction. This variation allows for flexibility in design based on the specific needs of the items being stored or the use case for the storage space.

Such facilities differ from traditional warehouses, which are generally fully enclosed with robust structures. Non-warehouse storage might include structures like open-sided sheds or structures with just one or two walls, which may serve specific operational needs that do not require full enclosure.

Other options include characteristics that do not universally apply to all non-warehouse storage facilities. While some may indeed be temperature-controlled, not all non-warehouse settings require this feature, especially if they are designed for items that do not need such conditions. Similarly, while storage may occur for inoperable equipment or unroofed locations, these are not defining characteristics of all non-warehouse facilities, thus making them less accurate as a general description.