In what situation might continuous special inspection be required?

Continuous special inspection is typically required for elements that are critical to the structural integrity of a building, such as reinforced concrete or structural steel connections. These elements are fundamental to the overall safety and performance of the structure, and continuous oversight ensures that the construction methods, materials, and workmanship comply with the approved plans and applicable codes.

In the case of reinforced concrete, factors such as the placement and bonding of reinforcing steel, the quality of mixing and pouring concrete, and curing practices are essential. For structural steel connections, the quality of welding or bolting is crucial to ensure that the connections perform as intended under load. Continuous inspection allows for real-time oversight and the immediate identification of any issues that could compromise safety.

In contrast, decorative masonry work, non-structural insulation, and routine inspections of finished surfaces may not require the same level of scrutiny because they do not significantly affect the load-bearing capacity of the structure. These elements might be subject to occasional inspections, but they do not necessitate the continuous presence of a special inspector during their installation.