According to the AARST mitigation standard, how should duct piping be installed regarding noise?

The AARST mitigation standard emphasizes the importance of minimizing the transfer of vibration from duct piping to the structural framing. This is crucial in radon mitigation systems, as excessive vibration and noise can lead to not only discomfort for occupants but also potentially interfere with the proper functioning of the systems.

By reducing the transfer of vibration, the installation of duct piping can help ensure that the system operates quietly and efficiently, promoting a better living environment. This is particularly significant in residential settings where peace and quiet are valued, and noise from mechanical systems can be disruptive.

In contrast, options that suggest maximizing vibration transfer, allowing unrestricted noise, or only using sound-proof areas do not align with the best practices outlined in the AARST mitigation standard. Such approaches would likely result in increased noise levels and could diminish the effectiveness of the radon mitigation efforts, thereby undermining the safety and comfort of the occupants.