What is the required visibility of unthreaded pipe extending beyond finished flooring?

The requirement for unthreaded pipe extending beyond finished flooring stipulates that there should be 0.5 to 2 inches of pipe visible. This regulation is in place to ensure that there is adequate support and accessibility for the pipe, which is vital for maintenance and safety purposes. Having a specific visibility range allows for the pipe to be properly secured while minimizing the risk of damage or interference with flooring materials.

Maintaining this visibility ensures that the unthreaded section can be easily identified in case of future maintenance or inspections, helping to prevent issues with leaks or blockages that could arise if the pipe is completely concealed within the flooring. It also aligns with industry standards designed to protect both the installation and the safety of the occupants within the space.