Siding boards attachment structure, sealing member used for the same, siding board, and method of attaching siding boards

A sealing member used for a siding boards attachment structure in which siding boards each have opposite right and left sides and opposite upper and lower sides and are each provided, at the opposite right and left sides thereof, with a lateral underlying tongue portion and a lateral overlying tongue portion, respectively, the lateral underlying tongue portion protruding along a vertical direction from a left side to a right side in a back surface side of one of the siding boards, a notched recess notched along the vertical direction from a right side to a left side in front of the lateral underlying tongue portion and the lateral overlying tongue portion protruding along the vertical direction from a right side to a left side in a front surface side of one of the siding boards, the sealing member being disposed continuously with the siding boards attachment structure over an underlayment in the vertical direction, and the sealing member comprising:

• a base plate portion configured to be secured to the underlayment;
• a rising plate portion bent forward from the base plate portion and configured to abut against a side surface of the lateral underlying tongue portion of one of the siding boards;
• a front plate portion bent from a front end of the rising plate portion in the opposite direction from the base plate portion and configured to engage with a front surface of the lateral underlying tongue portion of one of the siding boards;
• a front resilient material provided on a front surface of the front plate portion and configured to be in tight contact with a front inner surface of the notched recess of one of the siding boards, and a back surface of the lateral overlying tongue portion of another of the siding boards;
• and
• a rear resilient material disposed on a front surface of the base plate portion, wherein the rear resilient material is in tight contact with back surfaces of the siding boards.

A siding board used for a siding boards attachment structure in which a sealing member is disposed continuously with the siding boards attachment structure over an underlayment in a vertical direction, wherein the sealing member includes a base plate portion configured to be secured to the underlayment, a rising plate portion bent forward from the base plate portion, a front plate portion bent from a front end of the rising plate portion in an opposite direction from the base plate portion a front resilient material provided on a front surface of the front plate portion, and a rear resilient material disposed on a front surface of the base plate portion and in tight contact with a back surface of the siding board, the siding board comprising:

• opposite right and left sides and opposite upper and lower sides;
• a lateral underlying tongue portion and a lateral overlying tongue portion at the opposite right and left sides, respectively, of the siding board, the lateral underlying tongue portion protruding along the vertical direction from a left side to a right side in a back surface side of the siding board, and the lateral overlying tongue portion protruding along the vertical direction from a right side to a left side in the front surface side of the siding board;
• and
• a notched recess notched along the vertical direction from a right side to a left side in front of the lateral underlying tongue portion and in back of the lateral overlying tongue portion, the notched recess formed such that the front resilient material and the front plate portion of the sealing member are fitted into the notched recess.

A method of attaching siding boards in a siding boards attachment structure, wherein each siding board of the siding boards has opposite right and left sides and opposite upper and lower sides and is provided at the opposite right and left sides thereof with a lateral underlying tongue portion and a lateral overlying tongue portion, respectively, the lateral underlaying tongue portion protruding along a vertical direction from a left side to a right side in a back surface side of each siding board, the lateral overlying tongue portion protruding along the vertical direction from a right side to a left side in a front surface side of each siding board, a notched recess extending along the vertical direction from a right side to a left side in front of the lateral underlying tongue portion and in back of the lateral overlying tongue portion, and a sealing member disposed continuously with the siding boards attachment structure over an underlayment in the vertical direction, the sealing member including a base plate portion configured to be secured to the underlayment, a rising plate portion bent forward from the base plate portion, a front plate portion bent from a front end of the rising plate portion in an opposite direction in front of the base plate portion, and a front resilient material provided on a front surface of the front plate portion, the method comprising:

• disposing securing metal fittings on the opposite upper and lower sides of a first row siding board;
• disposing the first row siding board on the underlayment using the securing metal fittings;
• bringing the rising plate portion of the sealing member into abutment against the lateral overlying tongue portion of the first row siding board;
• engaging the front plate portion of the sealing member with a front surface of the lateral underlying tongue portion;
• fitting the front resilient material and the front plate portion of the sealing member into the notched recess of the first row siding board;
• bringing the front resilient material into tight contact with a front inner surface of the notched recess;
• securing the sealing member to the underlayment;
• disposing the securing metal fittings on the opposite upper and lower sides of a second row siding board;
• disposing the second row siding board to the underlayment such that the sealing member is sandwiched between the first row siding board and the second row siding board;
• bringing the front resilient material into tight contact with a back surface of the lateral overlying tongue portion of the second row siding board;
• and
• bringing a back surface of the second row siding board into tight contact with a rear resilient material which is disposed on a front surface of the base plate portion.