Sway bracing and blocking must be installed on all horizontal sanitary and storm drainage piping of which size or larger?

Sway bracing and blocking are important structural elements in plumbing installations that provide stability and support to horizontal sanitary and storm drainage piping. According to the Omaha Plumbing Code, these supports are required to ensure that systems can withstand the forces acting upon them, including those from water flow and thermal expansion, particularly for larger diameter pipes.

The requirement for sway bracing and blocking to be installed on horizontal sanitary and storm drainage piping begins at a size of 5 inches. This is due to the increased weight and potential movement of larger pipes, which can create more significant stresses on the supports and hangers. Proper bracing helps prevent sagging, buckling, and misalignment of the piping system, contributing to its longevity and functionality.

Smaller pipe sizes, such as those below 5 inches, typically do not require the same level of bracing due to their lighter weight and lower structural demands. This distinction is crucial in ensuring that plumbing systems are both code-compliant and efficient in their operation, promoting safety and durability in building infrastructure.