What does a plumbing riser diagram illustrate?

A plumbing riser diagram illustrates the vertical layout of the plumbing system within a building. This type of diagram is essential because it shows how plumbing fixtures, pipes, and other components are arranged from the ground level to various floors within the structure. It typically includes information about pipe sizes, types, and connections, helping engineers, contractors, and builders understand how water supply and drainage systems will be implemented in a multi-story building.

The focus on vertical alignment is crucial for planning and managing installation tasks, ensuring compliance with plumbing codes, and facilitating troubleshooting and maintenance. Understanding the vertical aspects allows for effective coordination of plumbing with other systems like electrical and HVAC, which may share the same vertical spaces or chases within the architecture of the building.