Where should labels be placed on radon piping?

Labels should be placed on both sides of the piping prior to wall closure to ensure clear and comprehensive identification of the radon mitigation system components. This practice is crucial for safety and maintenance reasons, allowing anyone who needs to access the system to quickly identify the radon piping and understand its purpose. Proper labeling is essential for facilitating future inspections, repairs, or upgrades, as it provides valuable information about the system layout and function.

Labeling only on the exterior might miss critical piping sections that are concealed once walls are closed, potentially hindering maintenance efforts. Similarly, limiting labels to a central monitoring device could result in confusion, as it does not guide users through the entire system. Placing labels at a single location per floor also risks omitting necessary information about the connectivity and layout of the piping. Therefore, labeling both sides of the piping is the most effective practice to ensure proper identification and accessibility of the radon mitigation system.