What is a primary characteristic of corrugated tin?

A primary characteristic of corrugated tin is that it has a wave-like pattern. This design is not just for aesthetic purposes; the corrugation increases the material's structural strength, making it more resistant to bending and flexing. The ridges and valleys formed by this pattern allow for efficient drainage and reduce the likelihood of rust buildup, enhancing the durability of the material in various environments. Additionally, the wave-like structure contributes to the overall lightweight nature of corrugated tin, making it a popular choice in construction and roofing applications.

The other options, while they may describe certain materials, do not specifically define the unique characteristics of corrugated tin. For instance, being transparent is not a feature of tin, as it is an opaque metal. Similarly, while corrugated tin is relatively lightweight, this is not its primary, defining characteristic, nor is flexibility a notable feature, as the corrugated form actually provides rigidity. Insulation is also not inherent to the material, as metal typically conducts heat rather than insulates against it. Thus, the defining wave-like pattern truly captures the essence of what corrugated tin is.