When considering loads imposed by gravity, what should an ISO pay special attention to?

The emphasis on buildings that have changed occupancy is crucial when considering loads imposed by gravity due to several factors. When a building's occupancy changes, the load requirements—including floor loading and weight distribution—can significantly differ based on the new use. For example, a space that was originally designed for light office use may suddenly house heavy machinery or equipment for a different function.

This alteration can lead to overloading of structural elements not initially intended to support such weight, posing a potential risk of structural failure. Therefore, an Incident Safety Officer must assess whether the existing structure can accommodate the new loads and ensure that safety measures are in place to handle any increased risk associated with this change in usage.

In contrast, while buildings made of heavy materials, those lacking proper roof anchorage, and those containing fixed equipment are also considerations in terms of safety, they do not highlight the same concerns about changes in load distribution and structural integrity that accompany changes in occupancy. Hence, understanding how different uses impact weight and stress on a structure is paramount for maintaining safety.