Abstract: Installation and construction methods for installing a wall panel are provided. The wall panel includes a surface member and a long joint member that extends horizontally, is fixed to one plate surface of the surface member, and is joined to a pair of wooden columns. The method includes: disposing the joint member between the pair of wooden columns; joining both longitudinal ends of the joint member to respective side surfaces, facing each other, of the pair of wooden columns; installing the wooden beam between the pair of wooden columns and adjusting erection of the wooden columns; and fixing an edge of the surface member to front surfaces of the pair of wooden columns and the wooden beam.

Abstract: A representative roof frame structure incorporates: paired wood sloping beams respectively extending from a ridge portion toward eaves on opposite sides from each other; a hanging portion hanging vertically downward from the ridge portion; and two steel braces respectively installed between lower faces of the sloping beams and side faces of a lower end of the hanging portion, wherein one end of each of the steel braces is pin-jointed to a beam-side fixing portion protruding from the lower face of the sloping beam, and the other end of each of the steel braces is pin-jointed to a hanging-portion-side fixing portion protruding from the side face of the lower end of the hanging portion.

Abstract: Installation and construction methods for installing a wall panel are provided. The wall panel includes a surface member and a long joint member that extends horizontally, is fixed to one plate surface of the surface member, and is joined to a pair of wooden columns. The method includes: disposing the joint member between the pair of wooden columns; joining both longitudinal ends of the joint member to respective side surfaces, facing each other, of the pair of wooden columns; installing the wooden beam between the pair of wooden columns and adjusting erection of the wooden columns; and fixing an edge of the surface member to front surfaces of the pair of wooden columns and the wooden beam.

Abstract: A representative roof frame structure incorporates: paired wood sloping beams respectively extending from a ridge portion toward eaves on opposite sides from each other; a hanging portion hanging vertically downward from the ridge portion; and two steel braces respectively installed between lower faces of the sloping beams and side faces of a lower end of the hanging portion, wherein one end of each of the steel braces is pin-jointed to a beam-side fixing portion protruding from the lower face of the sloping beam, and the other end of each of the steel braces is pin-jointed to a hanging-portion-side fixing portion protruding from the side face of the lower end of the hanging portion.