To manufacture a metallic siding material applied with the brick pattern that masonry joint corresponding parts parallel to each other in the longitudinal direction are largely recessed among large brick patterns.
A metallic sheet is continuously embossed by an embossing machine comprising two emboss rolls 8a, 8b which are rotated at the same speed in the opposite direction to each other by arranging masonry joint corresponding parts in which each side is inclined around a brick pattern part and orthogonal in the longitudinal direction and pseudo masonry joint corresponding part whose depth is equal to the depth of the joint corresponding part and whose bottom part width is wider than the bottom part width of the masonry joint corresponding parts to be manufactured parallel in the longitudinal direction opposite to each other. A part corresponding to an edge part of a bottom part of the pseudo masonry join corresponding part is restricted at the face and back, and is rolled by a rolling mill 9 comprising two rolls 9a, 9b which are arranged opposite to each other and rotated at the same speed in the opposite direction to each other to the depth of the masonry joint corresponding part whose bottom width is equal to that of the masonry joint corresponding part parallel in the longitudinal direction, and which is ≥1.3mm in the depth from the surface of a surface member 1, and parallel in the longitudinal direction.
MAEKITA AKIHIKO
SEKIGUCHI KOJI
