초록

A roof tile formed of a sheet metal, preferably steel, in which the sheet material tile is strengthened by integral flanges (11) raised bosses (14) and depressions (15). The raised bosses (14) in use act as supports between one tile and an overlapping portion of another tile.

대표청구항 ▼

A sheet metal roof tile having an upper portion and a substantially flat lower portion and which in use, co-operates with other such roof tiles for laying in rows upon a roof such that the substantially flat lower portions of the tiles in one row substantially overlap the upper portions of tiles in

A sheet metal roof tile having an upper portion and a substantially flat lower portion and which in use, co-operates with other such roof tiles for laying in rows upon a roof such that the substantially flat lower portions of the tiles in one row substantially overlap the upper portions of tiles in a lower row, and are off-set relative thereto, and the upper portions of said tiles are themselves substantially overlapped by the substantially flat lower portions of tiles in an upper row, the tile having an upper surface with a major area portion of the surface defining a substantially flat primary plane of the tile, the sheet metal tile being formed with at least one off-set strengthening portion raised above the primary plane of the tile, characterised in that each off-set portion is formed in the upper portion of the tile and has an upper surface raised above the primary plane of the tile to a height greater than the overall thickness of the lower portion of the tile, and positioned on the upper portion of the tile such that said upper surface of each offset portion in use, supports the underside of the substantially flat lower portion of an overlapping portion of another tile.