| 摘要 |
The present invention relates to a sandwich panel (10) comprising a front plate (20), a rear plate (30), and a filler filled between the front plate (20) and the rear plate (30). The sandwich panel includes: a female connection unit (23) and a male connection unit (24) connected to the adjacent sandwich panel (10) and installed at both ends in the width direction on the front plate (20) to be bent; a transverse joint (21) coated in the longitudinal direction at the end adjacent to the female connection unit (23) or the male connection unit (24); a pair of protrusions (26) having an L-shaped cross section at both ends of the longitudinal direction and having a U-shaped cross section groove (25) by being in contact with the adjacent sandwich panel (10) by being extended in the width direction; and a vertical joint (22) coated in the width direction between the pair of protrusions (26). The protrusions (26) of the adjacent sandwich panel (10) are attached to each other, so the U-shaped cross section groove (25) is formed. The sandwich panel maintains air tightness to have excellent waterproof properties and excellent thermal insulation properties. The sandwich panel also has a beautiful appearance by having a predetermined pattern. |
