JP2003239500A - Execution method for exterior wall material and exterior wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an execution method for an exterior wall material and an exterior wall, which can reduce the number of man-hours of execution of work. <P>SOLUTION: This execution method is equipped with: a process in which a net material 20 is put up on an existing wall surface 18a; a process in which a substrate adjusting material 24 is applied to the wall surface 18a of the siding 18 in which the net material 20 is put up; a process in which an elastic adhesive 26 excellent in adhesive properties is applied to the material 24; and a process in which the exterior wall material 28 is stuck on the adhesive 26. The net material 20 is fixedly attached to the wall surface 18a by a screw member 22 in a state in which a head part 22a of the screw member 22 is protruded from the wall surface 18a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to an outer wall material construction method and an outer wall in a building. The “outer wall” as used in the present specification includes a wall portion similar to the outer wall, for example, an inner wall of a building, a fence, and the like.

[0002]

2. Description of the Related Art A conventional example will be described. FIG. 7 is a partially cutaway perspective view showing the outer wall, and FIG. 8 is a sectional view showing a main part of the outer wall.
For example, in a wooden house, as shown in FIG. 7, a crossbar 14 is installed on a pillar 10 and a stud 12 of the house, and then a waterproof sheet 16 is stretched. Tarpaulin 16
An existing outer wall material, for example, a siding 18 is installed on the top. An existing wall surface 18a is formed by the siding 18.

On the existing wall surface 18a of the siding 18, an outer wall material 38 is applied, that is, laminated.
The outer wall member 38 forms a new wall surface 38a.
In this way, the construction method of constructing the outer wall material 38 on the existing wall surface 18a of the siding 18 is called "overlapping method" and has an advantage that the new wall surface 38a can be formed without breaking the siding 18. is there.

Next, a conventional construction method for the outer wall member 38 will be described. First, as shown in FIG. 7, the siding 1
The net material 30 is stretched on the existing wall surface 18 a of No. 8. The net material 30 is fixed to the existing wall surface 18 a of the siding 18 by screwing the screw member 32.

Before the net member 30 is stretched, however, as shown in FIG. 8, the existing wall surface 18a of the siding 18 has a head 32a of the screw member 32 and a washer 33 attached to the screw member 32. 38b that can accommodate
Are formed. The recess 38b is a siding 1
It is formed by subjecting the existing wall surface 18a of No. 8 to a counter boring process (also referred to as a spot facing or a counter boring) with a tool such as a drill.

Therefore, when the net member 30 is fixed to the existing wall surface 18a of the siding 18 by the screw member 32, the head portion 32a of the screw member 32 and the washer 33 are placed in the recess 38b of the existing wall surface 18a. Be accommodated. Therefore, the head portion 32a of the screw member 32 and the washer 33 are not projected onto the existing wall surface 18a.

Next, as shown in FIGS. 7 and 8, an undercoat material 34 is applied to the existing wall surface 18a of the siding 18 on which the net material 30 is stretched.

Next, the primer 3 is applied to the base conditioning material 34.
Adhesive 36 is applied after 5 is applied. An outer wall material 38 is attached to the adhesive 36.

[0009]

In the above-described conventional method for applying the outer wall material, the adhesive 36 having poor adhesiveness is applied to the base adjusting material 34. That is, the base adjusting material 34, which is inferior in adhesiveness to the adhesive 36, was used. For example, an acrylic resin-based mortar material was used as the base adjustment material 34, and a polyurethane resin-based adhesive was used as the adhesive 36. The acrylic resin mortar material and the polyurethane resin adhesive are inferior in mutual adhesiveness.

Therefore, in order to increase the adhesiveness between the undercoating material 34 and the adhesive 36, it is necessary to apply the primer 35 between the undercoating material 34 and the adhesive 36. , The construction man-hours had to be increased. Note that, conventionally, the application of the primer has been constantly performed, and there has been no idea to consider the adhesiveness between the base conditioning material 34 and the adhesive 36. Therefore, the present invention proposes to omit the step of applying the primer, focusing on the adhesiveness between the undercoating material and the adhesive.

An object of the present invention is to provide an outer wall material construction method and an outer wall which can reduce the number of construction steps.

[0012]

The above-mentioned problems can be solved by an outer wall material construction method and an outer wall having the construction described in the claims of the present invention. That is, according to the method of constructing the outer wall material described in claim 1, the undercoat material is applied after the net material is stretched on the existing wall surface. After that, an adhesive having excellent adhesiveness is applied to the base conditioning material, and the outer wall material is attached to the adhesive. Therefore, by applying an adhesive having excellent adhesiveness to the undercoating material, it is possible to omit the primer coating step conventionally required between the undercoating material and the adhesive, thus reducing the number of construction steps. Can be reduced.

Next, according to the method of constructing the outer wall material according to the second aspect of the invention, the head of the screw member for fixing the net material onto the existing wall surface is projected, so that the wall surface of the existing wall surface is projected. Since it is not necessary to perform a spot facing process for accommodating the head of the screw member, the number of construction steps can be further reduced.

Next, according to the outer wall of the present invention, the number of construction steps can be reduced by omitting the primer coating step conventionally required between the undercoating material and the adhesive. It is possible to obtain an outer wall constructed by a construction method capable of

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. 1 is a partially cutaway perspective view showing the outer wall, FIG. 2 is a side sectional view of the same, and FIG. 3 is a sectional view showing a main part of the outer wall. The present embodiment is the outer wall material construction method and outer wall material for constructing the outer wall material on the existing wall surface by the siding (corresponding to the existing outer wall) of the wooden house described in the conventional example. For convenience of explanation, the existing wall surface will be described first, and then the method of constructing the outer wall material will be described.

The existing outer wall will be described first. As shown in FIG. 1, a crossbar 14 is erected on a pillar 10 and a stud 12 of a wooden house, and a waterproof sheet 16 is stretched on the waterproof sheet 16, and an existing outer wall material, for example, siding 18 is installed on the waterproof sheet 16. ing. Existing wall surface 18 by siding 18
a is formed. In addition, pillar 10 of wooden house, stud 1
2, the cross bar 14, the waterproof sheet 16, and the siding 18 are designated by the same reference numerals as those in the conventional example. The existing wall surface 18a of the siding 18 corresponds to, for example, a “finished surface made of a coating material”.

As shown in FIG. 1, the siding 18
A net material 20 is stretched on the existing wall surface 18a. The net material 20 is the existing wall surface 18 of the siding 18.
It is fixed to a by screwing, for example, a screw type screw member 22 without subjecting it to spot machining (see FIGS. 2 and 3). Therefore, when the net member 20 is fixed to the existing wall surface 18a of the siding 18 with the screw member 22, the screw member 2 is attached onto the existing wall surface 18a.
The washer 23 attached to the second head 22a and the screw member 22 is projected. Further, as shown in FIG. 3, the screw member 22 penetrates the washer 23 and the net member 20 in order, and is screwed into the cross bar 14 and the pillar 10 or the stud 12 through the siding 18 and the cross bar 14.

The net member 20 is made of vinylon fiber, for example, and has a total of three axes of two vertical axes intersecting with each other and a horizontal axis intersecting with each other, forming a triangular mesh. A so-called triaxial net is used.

The screw member 22 and the washer 23 are made of stainless steel, for example. As a result, the wall thickness of the head portion 22a of the screw member 22 and the washer 23 attached to the screw member 22 (thickness in the left-right direction in FIG. 3) can be reduced as compared with, for example, an iron-made one. Therefore, the protrusion amount of the head portion 22a of the screw member 22 and the washer 23 with respect to the existing wall surface 18a of the siding 18 can be reduced. This is effective in reducing the usage amount of the base adjusting material 24 (described later).

As shown in FIG. 1, on the existing wall surface 18a of the siding 18 on which the net material 20 is stretched,
A base adjusting material 24 is applied from above the net material 20 (see FIG. 1). As a result, the base is adjusted. The base adjusting material 24 is applied in a state in which the head portion 22a of the screw member 22 and the washer 23 are embedded (see FIG. 3).

As shown in FIG. 1, an adhesive (which is called an elastic adhesive) 26 having elasticity after curing is applied to the undercoat material 24 after curing with a substantially uniform thickness ( (See FIG. 3).

The elastic adhesive 26 is used as the base adjusting material 2.
4 has excellent adhesiveness. That is, as the base adjusting material 24 and the elastic adhesive 26, those having excellent adhesiveness to each other are used. In this embodiment, as the elastic adhesive 26, a polyurethane resin-based elastic adhesive, more specifically, a one-pack type moisture-curable polyurethane resin-based elastic adhesive is used. The one-component moisture-curable polyurethane resin-based elastic adhesive also has high adhesiveness with the outer wall member 38 (described later).

In addition, in consideration of the adhesiveness with the elastic adhesive 26, a two-component epoxy resin-based mortar material having excellent adhesiveness with the elastic adhesive 26 is used for the base adjusting material 24. Has been done. The two-pack type epoxy resin-based mortar material is, for example, a two-component type mortar material containing a powdery main agent and a liquid curing agent, and has high adhesiveness to the existing wall surface 18a of the siding 18 and the net material 20. It has characteristics.

As shown in FIG. 1, a new outer wall material 28 is installed on the elastic adhesive 26 in a predetermined arrangement,
That is, they are overlaid (see FIGS. 2 and 3).
A new wall surface 28 a is formed by the outer wall material 28.
As the outer wall material 28, for example, a tile such as a brick tile, a brick tile, a kiln-alternate tile, a double-decker tile, a wood board, an outer wall material such as a resin plate material having a stone tone can be used.

Next, a method of constructing the above-mentioned outer wall material 28 will be described. This construction method is roughly divided into first to fourth total 4
It has a process.

[First Step] As shown in FIG. 4, a net material 20 is stretched on the existing wall surface 18a of the siding 18. At this time, as described above, the net material 2
0 is fixed to the existing wall surface 18a of the siding 18 by the screw member 22 without performing the recessing process. In addition, the screw member 22 is
It can be easily screwed on. It should be noted that the existing wall surface 18a of the siding 18 is preferably formed with a screw hole for screwing the screw member 22 by using a drill or the like.

[Second Step] Next, as shown in FIG. 5, with respect to the existing wall surface 18a of the siding 18 on which the net material 20 is stretched, the base material 2 is adjusted from above the net material 20.
4 is applied in a state where the head portion 22a of the screw member 22 and the washer 23 are embedded, whereby the base is adjusted.

[Third Step] Next, as shown in FIG. 6, an elastic adhesive 26 having excellent adhesiveness to the base adjusting material 24.
Is applied with a substantially uniform thickness.

[Fourth Step] Next, as shown in FIG. 3, the outer wall member 28 is attached to the elastic adhesive 26 in a predetermined arrangement. As described above, the outer wall is completed and the new wall surface 38a is formed by the outer wall material 38.

According to the above-described method of applying the outer wall material, by applying the elastic adhesive 26 having excellent adhesiveness to the base adjusting material 24, it is conventionally necessary to provide the space between the base adjusting material 24 and the elastic adhesive 26. The applied step of the applied primer 35 can be omitted, and thus the number of construction steps can be reduced. Furthermore, the construction period can be shortened, the material cost and the labor cost can be reduced, and the construction cost can be reduced.

Next, the existing wall surface 18a of the siding 18
Since the head portion 22a of the screw member 22 and the washer 23 for fixing the net material 20 to the siding 18 are projected,
Since it is not necessary to perform the spot-drilling process for accommodating the head portion 22a of the screw member 22 on the existing wall surface 18a, the number of construction steps can be further reduced.

Next, according to the outer wall constructed by the method of constructing the outer wall material 28 described above, the number of construction steps is eliminated by omitting the coating step of the primer 35 which is conventionally required between the base adjusting material 24 and the elastic adhesive 26. It is possible to obtain an outer wall constructed by a construction method capable of reducing

An elastic adhesive 2 having elasticity after curing
By using 6, it is possible to prevent peeling of the outer wall material 28, generation of cracks in the elastic adhesive 26, etc. due to vibration such as an earthquake.

The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the scope of the present invention. For example, the present invention can be applied not only to a wooden house but also to a method of constructing an outer wall material of a building such as a steel frame structure and an outer wall. In addition to the siding 18, the present invention can be applied to an existing wall surface 18a made of concrete such as ALC or RC. Further, the present invention can be applied to a wall portion similar to the outer wall of a building.

Further, as the base adjusting material 24, urethane resin mortar material, other resin material and the like can be used in addition to epoxy resin mortar material. As the elastic adhesive 26, in addition to the polyurethane resin elastic adhesive 26, a modified silicone resin elastic adhesive or the like can be used.
Further, instead of the elastic adhesive 26, it is possible to use an elastic adhesive having no elasticity. In addition to the vinylon fiber, for example, other synthetic resin nets, metallic nets, and the like can be used for the net material 20, and biaxial or tetraaxial nets other than triaxial can be used. Further, the existing wall surface 18a of the siding 18 may be countersunk if necessary.

Further, the screw member 22 is the siding 18
As long as the net material 20 can be fixed to the existing wall surface 18a, other than the screw type screw member 22, for example, a fixing means such as a screw, an anchor bolt or a nail can be used. When using a nail, the nail can be easily hit on the crossbar 14 by using an air gun. The screw member 22 and the washer 23 may be made of a material other than stainless steel, for example, metal such as iron or brass, or other material. The washer 23 can be omitted.

[0037]

As described above, according to the present invention, it is possible to reduce the number of construction steps by omitting the primer coating step conventionally required between the undercoating material and the adhesive. .

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an outer wall according to a first embodiment of the present invention.

FIG. 2 is likewise a side sectional view showing an outer wall.

FIG. 3 is a side sectional view showing a main part of an outer wall.

FIG. 4 is a side sectional view showing a first step.

FIG. 5 is a side sectional view showing a second step.

FIG. 6 is a side sectional view showing a third step.

FIG. 7 is a partially cutaway perspective view showing an outer wall according to a conventional example.

FIG. 8 is a cross-sectional view showing a main part of an outer wall.

[Explanation of symbols]

18 siding 18a Existing wall 20 Net material 22 Screw member 22a head 24 Base conditioner 26 Elastic adhesive (adhesive) 28 Outer wall material

Claims (3)

[Claims] 1. A method of constructing an outer wall material, which comprises attaching an outer wall material to an existing wall surface, comprising a step of stretching a net material on the existing wall surface, and a base adjusting material on the existing wall surface stretched with the net material. A method of applying an outer wall material, comprising: a step of applying, an step of applying an adhesive having excellent adhesiveness to the base conditioning material, and a step of attaching an outer wall material to the adhesive. 2. The outer wall material according to claim 1, wherein the net material is fixed to the existing wall surface by a screw member in a state in which a head of the screw member is projected onto the existing wall surface. Construction method. 3. An outer wall constructed by the method for constructing an outer wall material according to claim 1 or 2.