JPH094077A - Joint treatment method of exterior wall material - Google Patents

Abstract

PURPOSE: To accurately and efficiently execute joints when installing exterior wall materials. CONSTITUTION: A primer 2 is applied at the end of an exterior wall material 1 forming a joint 4 as a primer treatment and then the primer-treated face is covered with a release paper to protect it and prevent dust and adhesion of stains. When executing the exterior wall, the release paper is peeled off and a caulking material is charged on the exposed primer-treated face or the joint is treated by adhesion of a waterproof joint tape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a joint portion formed by opposing ends of adjacent outer wall materials when the outer wall materials are constructed.

[0002]

2. Description of the Related Art Conventionally, when an outer wall material is constructed, a caulking material is filled in the joint portion or a waterproof joint tape is attached to the joint portion for the purpose of waterproofing the joint portion between the outer wall materials. However, in such a joint treatment, it is necessary to perform a primer treatment on the joint treated portion in advance in order to prevent caulking breakage and peeling of the joint tape due to a dimensional change of the outer wall material. Therefore, after the joint treatment part of the outer wall material is subjected to a primer treatment at the site to improve the adhesion with the caulking material or the joint tape, the caulking material is filled or the joint tape is attached. .

[0003]

However, if the joint treatment portion is subjected to a primer treatment at the site during the construction of the outer wall material, it takes time to dry and cure the primer, resulting in a decrease in work efficiency and an extension of the construction period. However, depending on the shape of the joint, there is a problem that the caulking breakage or the joint tape peeling easily occurs due to insufficient primer coating or insufficient curing. Such a problem can be solved by subjecting the joint treatment portion of the outer wall material to the primer treatment in advance without performing the primer treatment on the site, but then, if dust or dirt adheres to the primer treatment portion, the joint treatment may occur. There is a problem in that the adhesiveness of the caulking material and the joint tape is impeded during the treatment, and the joint treatment with high durability and accuracy cannot be performed.

The present invention has been made in view of the above problems, and an object of the present invention is to improve the jointability of the outer wall material by improving the workability and obtaining a strong joint having high durability. To provide.

[0005]

In order to achieve the above-mentioned object, the joint treatment method for an outer wall material of the present invention is such that an end surface of the outer wall material to be joint-treated is subjected to a primer treatment in advance, and then the primer-treated portion is treated. It is characterized in that a release paper is adhered, and the release paper is peeled off at the time of construction of the outer wall to fill the joint portion formed between the facing end faces of the adjacent outer wall materials with the caulking material. In this method, as described in claim 2, when the release paper is peeled off, the release paper portion at the bottom of the joint portion is left without completely peeling the release paper, and then the joint portion is removed. May be filled with caulking material.

Further, in the invention described in claim 3, after the end surface of the outer wall material to be subjected to the joint treatment is preliminarily treated with a primer, a release paper is attached to the primer-treated portion, and the outer wall material is applied at the time of applying the outer wall. Peel off the release paper and adhere the joint tape between the surfaces to be joint treated at the opposite ends of the adjacent outer wall materials,
Then, the joint treatment method for the outer wall material is characterized in that the outer wall material is subjected to surface coating. In this method as well, the release paper is peeled off when the release paper is peeled off as described in claim 3. Of the outer wall material to be joint-treated without peeling off the entire surface, leaving a certain width along the end face of the release paper part on the surface of the surface, and then joint treatment of the opposite end of the adjacent outer wall material Joint tape may be adhered between the surfaces.

[0007]

[Function] Since the portion of the outer wall material to be subjected to the joint treatment is subjected to the primer treatment in advance and the release paper is attached to the treated surface, the treated surface is covered and protected by the release paper. It is possible to prevent dust and dirt from adhering to the surface, and at the time of constructing the outer wall, by peeling off the release paper at the site, the caulking material can be immediately filled or the joint tape can be jointed. At this time, since the primer-treated surface is covered and protected by the release paper until the release paper is peeled off, the adhesion between the primer-treated surface and the caulking material or the joint tape is good, and the durable joint is strong. Can form a structure.

Further, when the caulking material is filled, if the release paper is left at the bottom portion of the end surface to be subjected to the joint treatment, the caulking material does not adhere to this portion, and the joint having the primer-treated surface exposed. Even if the joint width fluctuates due to the dimensional change of the base material with the outer wall material stretched, the caulking material expands and contracts in accordance with the variation due to the caulking material adhering only to the opposing end faces of the parts Can be absorbed to prevent the occurrence of cracks and the like.

Similarly, in the construction of the large wall construction method in which the joints are not visible, when the joint tape is attached between the surfaces of the opposing end portions of the adjacent outer wall materials, the release paper is applied along the end surface of the outer wall material by a certain width. If it is left, the joint tape does not adhere to this portion, and due to the existence of this non-adhesive portion, the joint tape expands and contracts in accordance with the change in the joint gap between the outer wall materials due to the dimensional change of the base material. Since it is possible to prevent partial concentrated stress from being applied to the tape, it is possible to prevent the occurrence of cracks in the coating film in the vicinity of the joint, and it is possible to perform joint treatment that always exhibits a good appearance.

[0010]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1 shows a state in which outer wall members 1 and 1 formed by forming male and female parts 1a and 1b at both end portions over the entire length are joined to each other with a joint interval. The portion 1a is formed by cutting an upper half of one end of the outer wall material 1 into an L shape with a constant width, and the male solid portion 1b is formed by cutting the lower half of the other end of the outer wall material 1 into the female solid portion. By cutting with a width smaller than the width of 1a, it is formed by the upper half part protruding from the cut end surface, but this real structure, that is, the male and female real parts that can be fitted to each other are formed at the center parts of both end surfaces. It may have a different structure.

Before the outer wall material 1 is applied on a base material (not shown), the end surfaces of all the outer wall materials 1 to be joint-processed, that is, the vertical end surface and the bottom surface of the female part 1a, and Primers 2a, 2b on the projecting end surface of the male part 1b facing the vertical end surface
After applying the primer treatment by applying 2 and 2c respectively over the entire length, strip-shaped release paper 3a, 3b on the primer-treated surface,
And 3c are temporarily attached to the entire surface to cover the primer-treated surface.

At the outer wall material construction site, the facing male and female parts 1a and 1b of the outer wall material 1 and 1 are jointed to the joint material 4 on the base material.
Then, they are joined and fixed so as to form a combined structure, and the release paper is peeled off to expose the primer-treated surface.
The release paper may be peeled off immediately before the outer wall material 1 is applied on the base material. Further, as shown in FIG. 2, all the release papers 3a to 3c may be peeled off, but as shown in FIG.
The release papers 3a and 3c attached to the facing surfaces of the male and female portions 1a and 1b may be peeled off, and the release paper 3b attached to the bottom surface of the female and male portions 1a may be left.

Next, when the joint portion 4 is filled with the caulking material 5, since the primer-treated surface is covered and protected by the release paper, there is almost no adhesion of dust or dirt, and the caulking material 5 adheres to the primer-treated surface. As a result, the joint property is improved and the joint treatment as shown in FIG. 4 can be performed.
In this case, as shown in FIG. 3, the release paper is attached to the bottom surface of the female part 1a.
When 3b is left, the caulking material 5 with which the joint portion 4 is filled is prevented from being adhered to the bottom surface of the joint portion 4 by the release paper 3b as shown in FIG. Even if the joint width fluctuates due to the dimensional change of the base material due to the close contact with the opposite end faces of the parts 1a and 1b, the coking material expands and contracts following the fluctuation, and the stress is absorbed and cracks occur. Is prevented.

As the structure of the joint portion 4, as shown in FIG. 6, in addition to the joint wall structure in which the male and female portions 1a and 1b of the adjacent outer wall members 1 and 1 are joined as described above, as shown in FIG. A structure in which a chamfered portion 1d is provided on the surface side of the facing end portion of the material, and adjacent outer wall materials 1 and 1 are joined in a butt state to form a V-shaped joint portion 4a by the facing chamfered portions 1d and 1d. May be

Also in this case, the chamfered portion 1d of the outer wall member 1 is
The primer 2d is applied in advance, and a strip-shaped release paper 3d is attached to the primer-treated surface to cover and protect the treated surface. Then, after the facing end surfaces of the outer wall materials 1 and 1 are butt-mounted on the base material, or immediately before the working, the release paper 3d is peeled off to expose the primer-treated surface. Next, as shown in FIG. 7, the joint portion 4 is filled with the caulking material 5 to perform the joint treatment.

It should be noted that the release paper 3d does not peel off entirely, and as shown in FIG. 8, the release paper portion covering the lower end of the chamfered portion 1d, that is, the release paper portion at the bottom of the joint 4 is shown. May be left, and then caulking material 5
When the caulking material 5 is filled, the caulking material 5 adheres to the primer-treated surface exposed by the exfoliation of the release paper 3d, while the remaining release paper portion at the bottom of the joint portion 4 prevents the adherence, and the joint width changes due to the dimensional change of the base material. Even if the change occurs, the caulking material 5 easily expands and contracts in accordance with the change, and the stress can be absorbed to prevent the occurrence of cracks and the like. As the caulking material 5, a caulking material having excellent weather resistance such as polyurethane type, silicone type, modified silicone type, polysulfide type, butyl rubber type is used.

9 to 13 show an outer wall material construction method by the large wall construction method in which the joint treatment of the outer wall material 1 is performed by the waterproof joint tape 6, without forming male and female parts on the outer wall material 1.
The end faces perpendicular to the surface are abutted against each other, and the joint tape 6 is attached between the surfaces of the opposing end parts to cover the gap between the end faces.

In this case, as shown in FIG. 9 and FIG.
After applying the primer 2 over the entire length from the end face on the surface of the opposite end portion of the outer wall material 1 to the predetermined width portion,
The primer-treated surface is covered with a strip-shaped release paper 3, and the release-treated paper 3 is peeled off when the outer wall material is abutted on the base or immediately before the application to expose the primer-treated surface as shown in FIG. After that, as shown in Figure 12,
A waterproof joint tape 6 having a width approximately twice that of the primer-treated surface is adhered to the primer-treated surface so as to be installed between the end surfaces of the adjacent outer wall materials 1, 1, and then the waterproof joint tape 6 is attached. The coating 8 is formed by coating the entire surface of the outer wall material 1 including the coating. As the joint tape 6, a vinyl chloride sheet, a glass non-woven fabric, a polyurethane non-woven fabric,
An acrylic rubber, a butyl rubber, or an asphalt rubber adhesive material is laminated and integrated on a highly elastic nonwoven fabric such as a polyethylene nonwoven fabric.

In this embodiment, the release paper 3 was completely peeled off from the primer-treated surface, but as shown in FIG.
Releasing the release paper of the appropriate width part from the opposite end faces of the outer wall materials 1 and 1
After 3d 'and peeling off the other release paper portion, the waterproof joint tape 6 may be adhered to the primer-treated surface in the same manner as above. According to such a joint treatment, the waterproof joint tape 6 covering the gap between the end surfaces of the outer wall materials 1 and 1 is prevented from being adhered to the outer wall material 1 by the remaining release paper portion 3d 'as shown in FIG. Even if the joint width (the gap between the facing surfaces of the outer wall materials 1 and 1) changes due to the dimensional change of the base material, the waterproof joint tape 6 on the release paper portion 3d ′ follows the change. Expands and contracts, and cracks are less likely to occur in the coating film 8.

FIG. 15 shows a modified example of the joint treatment method using the waterproof joint tape 6, in which the upper half of one end of the outer wall member 1 and the lower half of the other end are cut out in an L shape to form a male and female part. 1e and 1f are formed, and tape attaching step portions 7, 7 having a width wider than the widths of the male and female parts 1e, 1f are formed on the surfaces of both end portions, and the tape attaching step portion 7 of the outer wall material 1 is formed. The bottom surface of 7 is coated with primer 2 in advance, and its primer surface, that is, the surface of step 7 is covered and protected by release paper 3e.

The construction of this outer wall material 1 is the same as that of the above-mentioned embodiment, and the male and female parts 1 of the outer wall materials 1 and 1 adjacent to each other on the base material.
e and 1f are engaged and fixed to each other with a joint gap. After fixing or just before that, the release paper 3e is peeled off to expose the primer-treated surface, and the waterproof joint tape 6 is attached between the step portions 7, 7 of both outer wall materials 1, 1 as shown in FIG. Then, joint treatment is performed, and then the entire surface of the outer wall material 1 including the waterproof joint tape 6 is coated to form a coating film 8.

In this case, as shown in FIG. 17, a part of the release paper 3e may be left on the surface of the joint space portion. Then, the joint tape portion covering the remaining release paper portion 3f forms an outer wall. Since it is not affixed to the material 1, it expands and contracts according to the variation in the joint spacing due to the dimensional change of the base material, and prevents the waterproof joint tape 6 from breaking and the coating film 8 from cracking. FIG. 18 shows a structure in which the residual release paper portion 3f is embedded in the step portion 7, and the second step portion 7a is previously formed on the end surface of the step portion 7 in the narrow width portion from the end surface of the outer wall material 1 in advance. After the release paper 3e is adhered to the step portions 7 and 7a as described above, the release paper portion inside the second step portion 7a is left when the outer wall material 1 is installed. The release paper portion on 7 is peeled off. By doing so, the waterproof joint tape 6 can be stuck evenly over the entire surface without forming a convex surface portion due to the remaining release paper portion, and the appearance becomes good.

In each of the above embodiments, the outer wall material 1
As the so-called ceramic outer wall material such as cement calcium silicate board, wood piece calcium board, slag cement board, etc., as the release paper, polyethylene sheet, adhesive material on one side of the paper piece such as paper, peel on the other side The thing which applied the agent is used. Moreover, as the primer, a primer for an inorganic material such as an epoxy type or an ethyl acetate type is adopted.

[0024]

As described above, according to the method for treating the joint of the outer wall material of the present invention, the portion of the outer wall material to be joint-treated is subjected to the primer treatment in advance, and the release paper is attached to the treated surface. The coated surface is covered with a release paper.
It is possible to protect and prevent dust and dirt from adhering to the treated surface, and to prevent occurrence of chipping at the corners of the outer wall material during transportation or other handling or construction. Is something that can be done.

Further, at the time of constructing the outer wall, the caulking material can be immediately filled in by peeling off the release paper on the site, or the joint treatment can be performed by adhering the joint tape, so that the construction work can be performed efficiently and the construction period can be shortened. In addition, during the joint treatment, the primer-treated surface is covered and protected by the release paper until the release paper is peeled off, so that the adhesion between the primer-treated surface and the caulking material or the joint tape can be improved. It is favorable and can form a strong joint structure with excellent durability.

Further, when the caulking material is filled, if the release paper is left at the bottom portion of the end surface to be subjected to the joint treatment, the caulking material does not adhere to this portion and the joint having the exposed primer treatment surface is exposed. Even if the joint width fluctuates due to the dimensional change of the base material with the outer wall material stretched, the caulking material expands and contracts in accordance with the variation due to the caulking material adhering only to the opposing end faces of the parts Can be absorbed to prevent the occurrence of cracks and the like.

Similarly, when a joint tape is attached between the surfaces of the opposite ends of the adjacent outer wall materials, if a release paper is allowed to remain along the end surface of the outer wall material by a certain width, the joints will be present at this portion. The tape does not adhere, and the presence of this non-adhesive part prevents the joint tape from expanding and contracting following the change in joint gap between the outer wall materials due to the dimensional change of the base material, and suppressing partial concentrated stress on the joint tape. As a result, it is possible to prevent the occurrence of cracks in the coating film in the vicinity of the joint, and it is possible to perform joint treatment that always exhibits a good appearance.

[Brief description of drawings]

FIG. 1 is a simplified cross-sectional view showing a state where outer wall materials are joined together,

FIG. 2 is a simplified sectional view showing a state in which all joint tapes are peeled off,

FIG. 3 is a simplified cross-sectional view showing a state where some joint tape remains.

FIG. 4 is a simplified cross-sectional view of a state in which caulking material is filled,

FIG. 5 is a simplified cross-sectional view of a state where some joint tape is filled with caulking material,

FIG. 6 is a simplified cross-sectional view showing a joined state of an outer wall material having joints formed by chamfering,

FIG. 7 is a simplified cross-sectional view showing a state in which caulking material is filled.

FIG. 8 is a simplified cross-sectional view of a jointing tape filled with caulking material,

FIG. 9 is a simplified perspective view of an outer wall material in which release papers having a constant width are attached to both end surfaces.

FIG. 10 is a simplified cross-sectional view of a joint portion of the outer wall materials,

FIG. 11 is a simplified cross-sectional view of the release paper with the release paper,

FIG. 12 is a simplified cross-sectional view showing a state where a joint tape is attached,

FIG. 13 is a schematic cross-sectional view showing a state in which a part of the release paper remains.

FIG. 14 is a simplified cross-sectional view showing a state in which a joint tape is attached,

FIG. 15 is a simplified cross-sectional view showing a state where release paper is attached to the step portion,

FIG. 16 is a simplified cross-sectional view showing a state in which a joint tape is attached to the step portion,

FIG. 17 is a simplified cross-sectional view showing a modification example thereof.

FIG. 18 is a simplified cross-sectional view showing still another modified example.

[Explanation of symbols]

 1 Outer wall material 1a, 1b, 1e, 1f Male and female parts 2, 2a-2d Primer 3, 3a-3d Release paper 4 Joint part 5 Caulking material 6 Waterproof joint tape 8 Coating film

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Izumi Morita 2-3-18 Nakanoshima, Kita-ku, Osaka City Daiken Kogyo Co., Ltd. (72) Yuji Nakagawa 2-3-3-18 Nakanoshima, Kita-ku, Osaka Ken Kogyo Co., Ltd.

Claims (4)

[Claims] 1. An outer wall material to be subjected to joint treatment is subjected to a primer treatment in advance, and a release paper is adhered to the primer-treated portion. A joint treatment method for an outer wall material, which comprises filling a joint portion formed between opposed end faces with a caulking material. 2. When peeling off the release paper, the release paper portion at the bottom of the joint is left without peeling off the release paper entirely, and then the joint is filled with caulking material. The joint treatment method for an outer wall material according to claim 1, which is characterized in that. 3. An outer wall material to be joint-processed is preliminarily subjected to a primer treatment on an end surface thereof, and then a release paper is adhered to the primer-treated portion. A joint treatment method for an outer wall material, which comprises bonding a joint tape between the surfaces to be joint treated at opposite ends of the material, and then applying a surface coating to the outer wall material. 4. When peeling off the release paper, the release paper portion on the end face side of the surface of the outer wall material to be subjected to the joint treatment is left with a certain width along the end face without peeling off the release paper entirely. The joint treatment method for an outer wall material according to claim 3, wherein a joint tape is adhered between the surfaces to be joint treated at the opposite ends of the adjacent outer wall materials.