Which of the following is NOT an example of roofing material?

Cement board is not typically categorized as a roofing material. Instead, it is predominantly used as a backing for tile, such as in wet areas like bathrooms, or for other interior and exterior applications where a sturdy, moisture-resistant backing is required. In contrast, clay tile, mineral fiber, and asphalt are all designed for roofing purposes.

Clay tile offers durability and a classic aesthetic, making it popular in certain architectural styles, while mineral fiber products, such as fiber cement or synthetic roofing materials, provide lightweight and fire-resistant options. Asphalt shingles are one of the most common roofing materials due to their affordability and ease of installation. Each of these materials is specifically engineered for outdoor exposure and to withstand various weather conditions, unlike cement board, which is not intended for direct roofing applications.