| 摘要 |
PROBLEM TO BE SOLVED: To provide a backer for a joint that may be fixed securely in the joint without using an adhesive tape, and is not bulky in form in a natural state before use, along with a cut-off structure for the joint using the backer.SOLUTION: A cut-off structure for a joint includes a raising backer part 81 that supports a rear side of a sealant 9 filled in a joint formed between adjacent exterior wall materials 2, and a lip part 82 formed to be bendable on both sides of the raising backer part 81. Elastic restitutive force is generated in the lip part 82 by being inserted into the joint with the lip part 82 bent in such a way to form a roughly U-shaped cross-section, causing an engaging part formed on the lip part 82 to hook on a corner part on a rear side of the exterior wall material 2.SELECTED DRAWING: Figure 1 |
