Abstract: A construction structure of wall surface includes: a hat joiner; and a building board. The hat joiner has a fixing plate portion and a design portion, and the building board has a design portion extending linearly on a surface. A joint at which the design portion of the hat joiner constitutes a design surface, and a design pattern at which the design portion of the building board constitutes a design surface, are formed in a same direction, by arranging the building board in plurality to left and right, or above and below, of the design portion of the hat joiner. A width of the joint at the design portion of the hat joiner is the same as a width of each of the design portions on the surface of each of the building boards.

Abstract: A lateral displacement preventing member is provided with a back-side locking piece that extends from a lower end of an upper fixing plate of the lateral displacement preventing member downward and parallel to a lower fixing plate. Thus, during disposition of the lateral displacement preventing member in a horizontal joint portion of exterior wall boards, the lateral displacement preventing member can be attached in a state in which an upper end portion of an upper horizontal portion of a first fastening member disposed in a vertical joint portion of the exterior wall boards is inserted in an inverted U-shaped groove formed by the back-side locking piece, an extended portion, and the lower fixing plate of the lateral displacement preventing member.

Abstract: A lateral displacement preventing member is provided with a back-side locking piece that extends from a lower end of an upper fixing plate of the lateral displacement preventing member downward and parallel to a lower fixing plate. Thus, during disposition of the lateral displacement preventing member in a horizontal joint portion of exterior wall boards, the lateral displacement preventing member can be attached in a state in which an upper end portion of an upper horizontal portion of a first fastening member disposed in a vertical joint portion of the exterior wall boards is inserted in an inverted U-shaped groove formed by the back-side locking piece, an extended portion, and the lower fixing plate of the lateral displacement preventing member.

Abstract: A fixing member is provided for fixing a ceramic exterior building material to a lightweight thin steel sheet. The fixing member includes a screw portion and a head portion at an upper end of the screw portion. A threaded portion in which a screw thread is formed is provided at a lower end of the head portion, a cutting portion in which a reamer is formed is provided at a lower end of the threaded portion, a pilot portion that has no screw thread is provided at a lower end of the cutting portion, and a tapered drill portion is provided at a lower end of the pilot portion. The thickness “g” of the ceramic exterior building material and the total of the length “e” of the pilot portion that has no screw thread and the length “f” of the tapered drill portion satisfy the relationship g<e+f.

Abstract: Provided is a construction structure of wall surface having no sealing material and in which a joining portion between building boards is inconspicuous. A construction structure of wall surface includes: a hat joiner; and a building board. The hat joiner has a fixing plate portion and a design portion, and the building board has a design portion extending linearly on a surface. A joint at which the design portion of the hat joiner constitutes a design surface, and a design pattern at which the design portion of the building board constitutes a design surface, are formed in a same direction, by arranging the building board in plurality to left and right, or above and below, of the design portion of the hat joiner. A width of the joint at the design portion of the hat joiner is the same as a width of each of the design portions on the surface of each of the building boards.