Fastening member, siding boards attachment structure using the same and method of attaching siding boards

A siding boards attachment structure in which a lateral joint portion of siding boards is arranged in a portion where a vertical member of a framework of a building is not arranged in, the siding boards attachment structure comprising:

• fastening members each having a long fixing plate portion fixed to at least one of the vertical members, and a first fastening portion, a vertical rising portion and a second fastening portion respectively formed in a front surface of the long fixing plate portion,
• and the siding boards fastened to the framework by fastening members,
• wherein the first fastening portion engages an upper end portion in the lateral joint portion of the siding boards and supports and engages a lower end portion of the siding board above the upper end portion,
• wherein the vertical rising portion abuts on a side end surface of the siding board in the lateral joint portion, and
• wherein the second fastening portion engages the upper end portion of the siding board in the other portions than the lateral joint portion so as to support and engage the lower end portion of the siding board.

A method of constructing a siding boards attachment structure in which a lateral joint portion of siding boards is arranged in a portion where a vertical member of a framework of a building is not arranged in, comprising the steps of:

• preparing a fastening member having a long fixing plate portion of a length equal to or more than an arrangement span of the vertical members,
• a first fastening portion provided on a front surface of the long fixing plate portion for engaging an upper end portion in the lateral joint portion of the siding boards and supporting and engaging a lower end portion of the siding board above the upper end portion,
• a vertical rising portion provided on the front surface of the long fixing plate portion configured to be arranged in the lateral joint portion in a lower side of the first fastening portion, and
• a second fastening portion provided on the front surface of the long fixing plate portion for engaging the upper end portion of the siding board in the other portions than the lateral joint portion so as to support and engage the lower end portion of the siding board;
• arranging and fixing the fastening member to the framework so as to abut the vertical rising portion on a side end surface of the siding board in the lateral joint portion of the siding boards arranged in a lower side, engage the first fastening portion to the upper end portion of the siding board, and engage the second fastening portion to the upper end portion of the siding board, in the other portions than the lateral joint portion;
• and
• next arranging the siding board in the upper side so as to support and engage the lower end portion of the siding board to the first fastening portion and the second fastening portion.