JPS61200254A - Joint structure of outer wall - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a joint structure for an exterior wall that prevents the occurrence of cracks in the paint layer of the exterior wall.

[Background Art] In the conventional exterior wall 1, as shown in FIG. 2, caulking material 4 is filled in the joints 3 between exterior materials 2.
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As shown by the arrow in the figure, concentrated stress is applied to the 6 layers of paint due to the contraction force of the paint film due to hardening of the paint 6 and the accompanying movement of the uncured caulking material 4. There was a problem in that cracks 7 occurred in the 6th layer of paint.

[Objective of the Invention 1 The present invention has been made to solve the above-mentioned problems, and its purpose is to be able to disperse the shrinkage force of the paint applied to the surface of the caulking material, and to To provide a joint structure for an exterior wall that does not cause layer separation and has excellent workability.

[Disclosure of the Invention] The joint structure of an exterior wall of the present invention is such that a caulking material 4 is filled in a joint portion 3 between exterior materials 2 of an exterior wall 1, and unevenness is formed on the surface of the caulking material 4. It is made by applying a paint 6 to the surface 5, and with this configuration, the above object can be achieved. That is, cracks will not occur in the six layers due to the uneven surface 5 of the caulking material 4.

The present invention will be described below based on embodiments shown in the accompanying drawings. A joint part 3 whose surface side is wide is formed between the exterior materials 2 of the outer wall 1. The joint portion 3 is filled with a caulking material 4 such as a sealant made of modified silicone, for example. The surface of the caulking material 4 is a wavy uneven surface 5. If this uneven surface 5 is done manually, use a spatula etc.
In the case of automatic filling, the filling is performed using a filling device equipped with a nozzle with a corrugated tip. The outer wall is finished by applying a paint such as acrylic emulsion paint, urethane paint, or karishin paint to the uneven surface 5 of this caulking material 4. In this case, as shown by the arrows in FIG. 1, the shrinkage force of the paint film 6 and the movement of the uncured caulking material 4 can be dispersed by the uneven surface 5, and the occurrence of blur in the paint layer 6 can be prevented. be.

Therefore, after filling with the caulking material 4, the paint 6 may be applied without waiting until the caulking material 4 hardens, resulting in excellent workability.

In addition, the caulking material 4 may be interposed with an elastic cloth such as a loop-shaped lath fiber knitted material, elastic urethane fiber or polyester fiber, and the paint 6 may be an elastic acrylic paint or elastic urethane paint. By using an elastic paint such as a paint, it is possible to absorb the contraction force of the paint film and the movement of the uncured caulking material 4, thereby making it possible to generate more cracks.

[Effects of the Invention] In the present invention, unevenness is formed on the surface of the caulking material filled in the joints between exterior wall covering materials, and the paint is applied to the uneven surface of the caulking material. The shrinkage force of the paint film and the movement of the uncured caulking material can be dispersed on the uneven surface, preventing cracks from occurring in the paint layer. Therefore, after exposing the caulking material to light, the caulking The paint can be applied without waiting for the material to harden, and it has excellent workability.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view showing an embodiment of the present invention together with its operation, and FIG. 2 is a plan sectional view showing a conventional example together with its operation, in which 1 is an outer wall, 2 is an exterior material, and 3 is a joint. , 4 is a caulking material, 5 is an uneven surface, and 6 is a paint. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 Figure 2

Claims (2)

[Claims] (1) An exterior wall joint structure characterized by filling the joints between exterior wall materials, forming unevenness on the surface of the caulking material, and applying paint to the uneven surface of the caulking material. . (2) The outer wall joint structure according to claim 1, wherein the uneven surface of the caulking material is wavy.