To provide a pantile having a lock structure causing readily no dislocation even if large force and a shock of a typhoon or an earthquake work thereon.

This pantile is continuously connected in the side part direction by superposing an underlapping side part 13 and an overlapping side part 12 of respective roof tiles at roof tile laying time, and is continuously connected in the vertical direction by superposing the head part 14 side on the hip part 15 side of the respective roof tiles. A side part engaging projection piece 20 is projected on the head part side of the overlapping side part. A side part engaging recessed part 21 fitted with the side part engaging projection piece is arranged in a head part side cutout part 16. A head part side engaging projection piece 25 is projected in the head part side cutout part. an end part side engaging recessed part 26 fitted with the head part engaging projection piece is arranged in an end part side cutout part 17.