Which roofing material is generally more curved, clay or asphalt?

Clay roofing material is inherently more curved due to its traditional manufacturing process and design characteristics. Clay tiles are often molded into specific shapes, including concave and convex forms, which not only provide aesthetic appeal but also help in effective water drainage. This curvature assists with the natural flow of rainwater, directing it away from the roof and preventing water accumulation that can lead to damage.

In contrast, asphalt shingles are typically flat or have a minor profile, which does not contribute to a curved appearance. Asphalt shingles are designed mainly for ease of installation and cost-effectiveness, focusing on providing a waterproof barrier without the architectural depth that clay tiles offer.

Although wood and metal roofing materials can have distinct profiles or shapes, they do not inherently exhibit the pronounced curvature of clay. Wood can be shaped or contoured, and metal may be formed into curves, but neither possesses the same traditional curvature inherent in clay roofing materials.