To provide a roof repair method and a roof material which, even when being irradiated with ultraviolet rays, cause no deterioration of a coating, maintain flexibility and strength, cause no cracks, and prevent rain leakage, and lengthen a useful life.

In a roof repair method, when a roof constructed many years ago is repaired, a waterproof coating is applied onto an old roof material as an under coating, and a non-solvent type coating, such as a mizeron resin coating, is thickly applied thereon. A roof material is provided which is obtained by applying a waterproof coating to the surface of a tile base molded into a predetermined shape as an under coating, thickly applying a non-solvent type coating thereon, putting sand on a coating film of the non-solvent type coating before the non-solvent type coating is dried, spraying a heat resistant coating thereon, and pushing and hardening it with a roller or the like.