When using sheet copper in plumbing, what is the minimum thickness required?

The minimum thickness required for using sheet copper in plumbing applications is indeed 12 oz per square foot. This specification is set forth in the Massachusetts Plumbing Code to ensure durability and resistance to corrosion, which is critical when utilizing copper in various plumbing systems. The thickness not only affects the strength and longevity of the pipes or fixtures but also their ability to cope with the pressures and environmental factors they encounter in real-world applications.

While lighter gauges might be sufficient for other applications, the 12 oz per square foot requirement provides a good balance between performance and cost, ensuring that the installations are sturdy enough to last without succumbing to wear, pressure fluctuations, or corrosive elements over time. The specification helps prevent issues that can arise from using inadequate materials, ultimately maintaining the integrity and safety of plumbing systems.