1.1 This specification covers the performance of non-asbestos, fiber-reinforced cement shake, shingle, and slate roofing systems that are of uniform or nonuniform thickness and texture. 1.2 This specification does not inc This specification covers the performance of non-asbestos, fiber-reinforced cement shake, shingle, and slate roofing systems that are of uniform or nonuniform thickness and texture. The roofing should conform to the following tests and performance requ