Cement board is a building material made from a mixture of cement and reinforcing fibers. It is commonly used as a backing for tiles in areas exposed to moisture, such as bathrooms and kitchens. Its durability and resistance to water make it an ideal choice for preventing mold and damage in these environments. Typically available in sheets, cement board is easy to cut and install. It provides a stable surface for tile adhesion, ensuring a long-lasting finish. Many contractors prefer using cement board over traditional drywall in wet areas due to its superior performance and longevity.