To prevent a rigid roofing member from being broken by one's weight by using a rigid roofing material that a cushioning material is laid at least at a part of the rear face of the body, on the roof substrate.

A decorative face is formed to have a nearly square plate and the lower connection part and the upper connection part are formed at both upper and lower ends thereof and further, the right connection part and the left connection part are formed at respective right and left ends to form the body B of rigid roofing members A,.... Cushioning materials C, C are arranged at the rear face of the body B to make the rigid roofing members A,.... The roofing members are laid on an existing substrate α such as a rigid slate roof. In this way, the cushioning material C absorbs the level difference of the roof substrates α. The body B of the rigid roofing member A can be prevented from being broken by one's weight or fluctuating motions. It is more preferable that waterproof, fire-resistant, and sound-insulative properties are given to the cushioning material C.