JP7021022B2 - Drainage structure on the outer wall of the building - Google Patents

Description

The present invention relates to a drainage structure of a building outer wall.

Conventionally, when joining panels such as ceramic siding to form the outer wall of a building, it has been known to use a corner joiner extending in the vertical direction in order to join panels adjacent to the left and right at the inside corner. There is. The inside corner joiner is located behind the left-right end of the panel and is located between the mounting surface of the building where the panel is mounted and the panel. A space in which the inside corner joiner is arranged is formed between the panel and the mounting surface on which the panel is mounted, and ventilation and water flow are possible (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2013-241735

By the way, balconies, windows, etc. may be arranged on the outer wall of the building. The panels constituting the outer wall are cut according to the shape of the outer wall. The inside corner joiner is usually continuously joined in the vertical direction of the building, but the inside corner joiner may be partially interrupted at the position where the shape of the outer wall changes. In such a case, there is a concern that the rainwater that has passed through the space where the inside corner joiner is arranged may sneak into the back surface of the panel, the joint with the skeleton, or the like at the interrupted portion of the inside corner joiner. In addition, whether or not rainwater can be drained to the outdoor side may change depending on the skill of the installer of the Irizumi Joiner. Therefore, there has been a demand for a drainage structure capable of draining rainwater regardless of the skill of the builder when joining panels to each other using a corner joiner.

The present invention relates to an inner corner portion (for example, an inner corner portion described later) of an outer wall (for example, an outer wall 3 described later) of a building (for example, a building 100 described later) to which a panel of ceramic siding (for example, a panel 30 described later) is attached. In 10), the inside corner joiner (for example, the inside corner joiner 2 described later) which is arranged so as to extend in the vertical direction between the adjacent panels and connects the adjacent panels to each other, and below the inside corner joiner. The drainage member (for example, the drainage member 4 described later) to be arranged is provided, and the inside corner joiner is ventilated downward or between the back surface of the panel and the mounting surface of the building to which the panel is mounted. The drainage member is arranged so as to allow water to pass through, and the drainage member is arranged at a guide portion (for example, a guide portion 40 described later) arranged along the extending direction of the inside corner joiner, and at the lower end of the guide portion, and the guide portion. The present invention relates to a drainage structure of a building outer wall (for example, a drainage structure 1 of a building outer wall described later) having a drainage portion (for example, a drainage portion 44 described later) extending from the outer wall toward the outdoor side surface.

It is preferable that the drainage portion is inclined downward from the panel side toward the outdoor side surface of the outer wall.

The inside corner joiner has a first side surface along one outer wall adjacent to the inside corner portion (for example, the first side surface 21 described later) and a second side surface along the other outer wall (for example, a second side surface described later). The side surface 22) has a connecting portion (for example, a connecting portion 23 described later) that connects the first side surface and the second side surface, and the guide portion is a guide portion first side surface (for example, a guide portion first side surface along the first side surface). For example, it has a guide portion first side surface 41) described later and a guide portion second side surface along the second side surface (for example, a guide portion second side surface 42 described later), and the drainage portion is the guide portion. It is preferable that the surface is formed by connecting the lower ends of the first side surface and the second side surface of the guide portion and extending to the outdoor side of the inside corner portion.

The guide portion may have an extension portion (for example, an extension portion 46 described later) extending below the drainage portion from the lower ends of each of the first side surface of the guide portion and the second side surface of the guide portion. preferable.

According to the present invention, it is possible to provide an outer wall structure of a building having good drainage property regardless of the skill of the builder.

It is a perspective view which shows the drainage structure of the building outer wall of this embodiment. It is a top view of the drainage structure of the building outer wall of this embodiment. It is a perspective view of the inside corner joiner of this embodiment. It is a top view of the inside corner joiner of this embodiment. It is a perspective view of the drainage member of this embodiment, (a) is a front side perspective view, (b) is a side view side perspective view. The drainage member of this embodiment is shown, (a) is a plan view, (b) is a side view seen from the second side surface side of the guide portion, and (c) is a side view seen from the first side surface side of the guide portion. It is a side view.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the drainage structure 1 of the outer wall of the building of the present embodiment. As shown in FIG. 1, the drainage structure 1 of the outer wall of the building is formed in the inner corner 10 between the outer wall 3 of the balcony 101 of the building 100 and the outer wall 3 adjacent to the balcony 101.
The building 100 has a balcony 101, an inner corner portion 10, a skeleton 11, an outer wall 3, an inner corner joiner 2, and a drainage member 4.
The balcony 101 is an overhanging portion protruding from the wall surface of the building 100 to the outdoor side.
The inner corner portion 10 is formed between a predetermined one surface of the outer wall 3 of the building 100 and the outer wall 3 of the balcony 101 extending in a direction substantially orthogonal to the outer wall 3 in the indoor / outdoor direction.

FIG. 2 is a plan view of the drainage structure 1 of the outer wall of the building of the present embodiment. For convenience of explanation, the scale of each part has been changed.
The skeleton 11 is a structural portion such as a pillar of the building 100, and is arranged on the indoor side of the inside corner portion 10 in FIG. An auxiliary base material 14 is attached to the outdoor side of the skeleton 11, and a vertical furring strip 15 is attached to the outdoor side of the auxiliary base material 14 via a waterproof sheet 16 so as to extend in the vertical direction. The vertical furring strip 15 is a mounting surface for mounting the panel 30.
The interior material 12 is arranged on the indoor side of the skeleton 11 and constitutes an inner wall. A heat insulating material 13 such as glass wool or rock wool is arranged on the outdoor side surface of the interior material 12 facing the interior of the building 100.

The outer wall 3 is formed by attaching the panel 30 of the ceramic siding. The outer wall 3 is arranged on the outdoor side of the interior material 12 with the skeleton 11 interposed therebetween.
The panel 30 is a substantially rectangular plate-shaped outer wall material, and is fixed to the vertical furring strip 15 on the outdoor side of the skeleton 11. The panel 30 forms an outer wall 3 by fitting the upper, lower, left, and right sides with the adjacent panels 30 and combining them.

FIG. 3 is a perspective view of the inside corner joiner 2, and FIG. 4 is a plan view.
The inside corner joiner 2 is a joint joiner arranged in the inside corner portion 10 and extending in the vertical direction. The inside corner joiner 2 is arranged between the panel 30 constituting the outer wall 3 extending in the indoor / outer direction of the balcony 101 and the panel 30 constituting the outer wall 3 of the wall surface adjacent to the balcony 101, and connects the panels 30 to each other. .. As shown in FIG. 2, the inside corner joiner 2 is arranged between the back surface (indoor side surface) of the panel 30 and the skeleton 11, and is attached to the vertical furring strip 15.

As shown in FIGS. 2 to 4, the inside corner joiner 2 is a long plate member that bends in a substantially M shape in a plan view. The inside corner joiner 2 is arranged with a ventilation / water passage space R1 between the back surface (indoor side surface) of the panel 30 and the vertical furring strip 15 to which the panel 30 is attached. The inside corner joiner 2 has a first side surface 21, a second side surface 22, a connecting portion 23, a folded portion 24, and a packing material 25.

As shown in FIG. 3, the first side surface 21 is a flat surface along the outer wall 3 of the balcony 101, which is one of the outer walls 3 adjacent to each other via the inside corner 10. The second side surface 22 is a flat surface along the outer wall 3 of the wall surface adjacent to the balcony 101, which is the other outer wall 3 adjacent to each other via the inside corner 10.

The connecting portion 23 is a portion that connects the first side surface 21 and the second side surface 22 and is arranged at a substantially central portion in the width direction of the inside corner joiner 2. The connecting portion 23 is bent so as to project to the outdoor side in a plan view. As shown in FIG. 2, the connecting portion 23 is a portion that receives the edge of the panel 30 constituting the outer wall 3, and a panel in which one surface 23b of the top portion 23a projecting to the outdoor side is arranged on the first side surface 21. It is arranged so that it receives the fore edge of 30 and the other side surface 23c of the top 23a receives the fore edge of the panel 30 arranged on the second side surface 22.

The folded-back portion 24 is a portion in which the outer end portions of the first side surface 21 and the second side surface 22 in the width direction are folded back and extend so as to face the first side surface 21 and the second side surface 22. The folded-back portion 24 is attached so that its outdoor side faces the indoor side surface of the panel 30.

The packing material 25 is a long member having the same length as the first side surface 21 and the second side surface 22, and is formed of an elastic material such as rubber or resin. The packing material 25 is arranged on the outdoor side surface of the first side surface 21 in the vicinity of the boundary with the surface 23b on one side of the connecting portion 23. Further, the packing material 25 is arranged on the outdoor side surface of the second side surface 22 in the vicinity of the boundary with the surface 23c on the other side of the connecting portion 23. The packing material 25 comes into contact with the indoor surface of the panel 30.

5A and 5B are perspective views of the drainage member 4, FIG. 5A is a front side perspective view, and FIG. 5B is a side view. 6 (a) is a plan view of the drainage member 4, FIG. 6 (b) is a side view seen from the second side surface 22, and FIG. 6 (c) is a side view seen from the first side surface 21. Is shown.
As shown in FIG. 5, the drainage member 4 has a substantially M-shaped shape in a plan view like the inside corner joiner 2, is arranged below the inside corner joiner 2, and is located at the lower end portion of the inside corner joiner 2. It is a member that can be adhered. The drainage member 4 has a guide portion 40, a drainage portion 44, and an extension portion 46.

The guide portion 40 is a vertically long portion arranged along the extending direction of the inside corner joiner 2. The guide portion 40 has a guide portion first side surface 41, a guide portion second side surface 42, and a guide portion connecting portion 43. The guide unit 40 guides the rainwater, air, etc. that travel through the entrance joiner 2 downward.

As shown in FIG. 2, the guide portion first side surface 41 extends along the first side surface 21 of the inside corner joiner 2 in a state where the drainage member 4 is joined to the inside corner joiner 2, and is a shop of the inside corner joiner 2. It is a flat surface arranged so as to be overlapped on the inside.

The guide portion second side surface 42 extends along the second side surface 22 of the inside corner joiner 2 with the drainage member 4 joined to the inside corner joiner 2, and is arranged so as to be overlapped on the indoor side of the inside corner joiner 2. It is a flat surface to be drained.

The guide portion connecting portion 43 is arranged so as to be overlapped on the indoor side of the connecting portion 23 of the inside corner joiner 2 in a state where the drainage member 4 is joined to the inside corner joiner 2. The guide portion connecting portion 43 is bent so as to project to the outdoor side in a plan view. As shown in FIG. 2, in the guide portion connecting portion 43, the one-sided surface 43b of the top portion 43a projecting to the outdoor side overlaps the one-sided surface 23b of the first side surface 21 of the inside corner joiner 2, and the top portion 43a. The other side surface 43c is arranged so as to face the other side surface 23c of the second side surface 22 of the inside corner joiner 2. As shown in FIG. 2, there is a gap between the other side surface 43c of the guide portion connecting portion 43 and the other side surface 23c of the second side surface 22 of the inside corner joiner 2, but there are a plurality of gaps. This is because the dimensions can be adjusted so that one drainage member 4 can be superposed on the inside corner joiner 2 having the same type of dimensions.

The guide portion folded-back portion 45 extends so that the outer end portions of the guide portion first side surface 41 and the guide portion second side surface 42 in the width direction are folded back and face the guide portion first side surface 41 and the guide portion second side surface 42. It is a part. The folded portion 45 of the guide portion is wider than the folded portion 24 of the inside corner joiner 2. The guide portion folded portion 45 is attached so that its outdoor side surface directly abuts on the indoor side surface of the panel 30.

The drainage portion 44 is arranged at the lower end of the guide portion 40, and extends from the guide portion 40 toward the outdoor side surface of the outer wall 3. Specifically, the drainage portion 44 extends from the lower ends of the guide portion first side surface 41, the guide portion second side surface 42, the guide portion connection portion 43, and the guide portion folded portion 45 in a direction intersecting them. As shown in FIGS. 5 (a), 6 (b) and 6 (c), the drainage portion 44 connects the lower ends of the guide portion first side surface 41 and the guide portion second side surface 42, and is substantially horizontal. It extends in the direction and is composed of a plate surface having a substantially trapezoidal shape in a plan view.

The extending portion 46 is a surface that extends continuously below the drainage portion 44 from the lower ends of each of the guide portion first side surface 41 and the guide portion second side surface 42. The extending portion 46 has a first extending portion 461 extending from the lower end of the first side surface 41 of the guide portion and a second extending portion 462 extending from the lower end of the second side surface 42 of the guide portion.
The first extension portion 461 and the second extension portion 462 extend from the lower ends of the guide portion first side surface 41 and the guide portion second side surface 42 to the back side of the guide portion connection portion 43, respectively, and are connected at positions where they intersect with each other. Will be done. The first extension section 461 and the second extension section 462 are connected at substantially orthogonal angles, and the position where the first extension section 461 and the second extension section 462 are connected is the guide section connection section 43. It is located diagonally to the top 43a of the. By connecting the first extending portion 461 and the second extending portion 462 at substantially orthogonal angles, the shape of the drainage member 4 is stabilized and the strength is improved.

The drainage member 4 is overlapped with the indoor side surface of the lower end portion of the inside corner joiner 2 and adhered by a hot melt adhesive. Specifically, the guide portion first side surface 41 is overlapped and adhered to the indoor side of the first side surface 21 of the inside corner joiner 2, and the guide portion second side surface 42 is overlapped and adhered to the indoor side of the second side surface 22 of the inside corner joiner 2. To. At this time, the folded portion 45 of the guide portion is overlapped on the outdoor side so as to cover the folded portion 24 of the inside corner joiner 2.

As shown in FIG. 2, the outdoor side surface of the packing material 25 of the inside corner joiner 2 and the outdoor side surface of the guide portion folded portion 45 of the drainage member 4 abut on the indoor side surface of the panel 30. Then, a small ventilation / water passage space R2 is formed between the outdoor side surface of the packing material 25 and the outdoor side surface of the guide portion folded portion 45 and the indoor side surface of the panel 30. In the ventilation / water passage space R2, a screw head (not shown) for fixing the first side surface 21 and the second side surface 22 of the entrance corner joiner 2 to the vertical furring strip 15 is arranged.

Next, the state of use of the drainage member 4 will be described.
When the inside corner 10 is formed on the wall surface of the building 100, the inside corner joiner connecting the panel 30 of one outer wall 3 adjacent to each other in the left-right direction via the inside corner 10 and the panel 30 of the other outer wall 3 is connected. 2 may be disconnected. In the example of FIG. 1, the inside corner joiner 2 is arranged between the panel 30 of the outer wall 3 extending in the indoor / outdoor direction of the balcony 101 and the panel 30 of the outer wall 3 constituting the wall surface adjacent to the balcony 101, and the balcony 101 is arranged. The inside corner joiner 2 is cut at the lower end.

The first side surface 21 and the second side surface 22 of the inside corner joiner 2 are attached to the vertical furring strip 15 together with the panel 30.
Further, the drainage member 4 is adhered to the indoor and outdoor surfaces of the lower end of the inner corner joiner 2 so as to cover the inner corner joiner 2. The guide portion 40 of the drainage member 4 extends along the longitudinal direction of the inside corner joiner 2, and the drainage portion 44 extends from the guide portion 40 toward the outdoor side surface of the outer wall 3. Therefore, the rainwater flowing down the entrance corner joiner 2 in the ventilation / water passage space R1 is received by the drainage unit 44 and drained to the outdoor side.

Further, it travels along the first side surface 21, the second side surface 22, the guide portion first side surface 41 of the drainage member 4, and the guide portion second side surface 42 of the inside corner joiner 2, and is between the packing material 25 and the indoor side surface of the panel 30. Rainwater flowing through the ventilation / water passage space R2 is also received by the drainage unit 44.
Further, the extending portion 46 prevents rainwater drained from the draining portion 44 to the outdoor side from entering the indoor side of the inside corner portion 10.

According to this embodiment, the following effects are achieved.
In the present embodiment, the drainage structure 1 of the outer wall of the building is arranged so as to extend in the vertical direction between the adjacent panels 30 at the inner corner 10 of the outer wall 3 of the building 100 to which the panel 30 of the ceramic siding is attached. It is configured to include an inside corner joiner 2 for connecting the panels 30 to each other and a drainage member 4 arranged below the inside corner joiner 2. Further, the inside corner joiner 2 is arranged below between the back surface of the panel 30 and the mounting surface of the building 100 to which the panel 30 is mounted so as to allow ventilation or water flow. Further, the drainage member 4 is arranged at the lower ends of the guide portion 40 and the guide portion 40 arranged along the extending direction of the inner corner joiner 2, and extends from the guide portion 40 toward the outdoor side surface of the outer wall 3. It was configured to include the drainage section 44.
The panel 30 of the outer wall 3 is cut at the inner corner 10 of the portion where the shape of the outer wall 3 changes due to the provision of a balcony 101 or a window in the building 100, or the layout of the inside of the building 100, and the inner corner joiner 2 is used. May be cut and placed. In such a case, a drainage member 4 having a drainage portion 44 extending toward the outdoor side surface of the outer wall 3 is arranged below the inside corner joiner 2. The inside corner joiner 2 extends in the vertical direction between the back surface of the panel 30 and the mounting surface of the panel 30 in the building 100. Therefore, the rainwater flowing down along the entrance corner joiner 2 can be received by the drainage unit 44 and drained to the outdoor side, and the outer wall structure of the building having good drainage can be provided. Further, since good drainage can be obtained only by attaching the drain member 4 to the inside corner joiner 2, the drainage can be improved without being influenced by the skill of the installer who constructs the panel 30.

In the present embodiment, the inside corner joiner 2 is provided with a first side surface 21 along one outer wall 3 adjacent to each other via the inside corner portion 10, a second side surface 22 along the other outer wall 3, and a first side surface 21 and a first surface. It is configured to include a connecting portion 23 for connecting the two side surfaces 22. Further, the guide portion 40 is configured to include a guide portion first side surface 41 along the first side surface 21 and a guide portion second side surface 42 along the second side surface 22, and the drainage portion 44 is configured as a guide portion first. The lower end portions of the side surface 41 and the guide portion second side surface 42 are connected to each other and are formed by a surface extending to the outdoor side of the entrance corner portion 10.
The first side surface 41 of the guide portion of the drainage member 4 is arranged along the first side surface 21 of the inside corner joiner 2, and the second side surface 42 of the guide portion of the drainage member 4 is arranged along the second side surface 22 of the inside corner joiner 2. By doing so, the drainage portion 44 is connected from the lower end portion of the guide portion 40 and extends to the outdoor side, so that the drainage of the inside corner portion 10 can be realized by simple installation, and the same effect as described above is obtained.

In the present embodiment, the guide portion 40 is configured to include an extension portion 46 extending below the drainage portion 44 from the lower ends of each of the guide portion first side surface 41 and the guide portion second side surface 42. Since the extending portion 46 extends below the draining portion 44, it is possible to prevent rainwater flowing down from the draining portion 44 from entering the inside corner portion 10.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified.
For example, in the above embodiment, the drainage portion 44 extends from the indoor side to the outdoor side in a substantially horizontal direction, but the drainage portion 44 is not limited to this. The drainage portion 44 may be inclined downward from the panel 30 side toward the outdoor side surface of the outer wall 3. By inclining the drainage portion 44 downward, water is smoothly guided to the outdoor side, so that the drainage property is improved.

Further, in the above embodiment, the case where the inside corner joiner 2 is provided in the inside corner portion 10 between the wall surface of the building 100 and the wall surface extending in the indoor / outdoor direction of the balcony 101 has been described as an example, but the present invention is not limited to this. The inside corner joiner 2 may be provided, for example, between a wall surface provided with an opening such as a window and a wall surface extending in a direction intersecting the wall surface. In the case of an inside corner where an opening such as a window is arranged, a structure such as a horizontal frame or a horizontal frame that extends in a substantially horizontal direction and projects in the indoor / outdoor direction is arranged. Therefore, the panel 30 constituting the outer wall 3 is cut at a position reaching the structure. When one panel 30 of the outer wall 3 and the other panel 30 of the outer wall 3 are cut at the inner corner portion 10, the lengths of the respective panels 30 may not match due to an error during construction.
In such a case, when the drainage member 4 is arranged at the lower end portion of the entrance corner joiner 2, the extension portion 46 extending downward from the drainage portion 44 extends from the lower end of the panel 30 to a structure such as a horizontal frame or a horizontal frame. You can fill the gap. Since the lower end of the extending portion 46 can be cut, the length can be adjusted according to the gap from the lower end of the panel 30 to the structure such as the horizontal frame or the horizontal frame. The drainage portion 44 and the extension portion 46 serve as end caps for the inside corner joiner 2. Since the drainage member 4 camouflages the difference in length when the length of the panel 30 of the outer wall 3 connected by the inside corner portion 10 is different, the design of the inside corner portion 10 is also improved.

1 Drainage structure of the outer wall of the building 2 Inner corner joiner 3 Outer wall 4 Drainage member 10 Inner corner 21 1st side surface 22 2nd side surface 23 Connection part 30 Panel 40 Guide part 41 Guide part 1st side 42 Guide part 2nd side 44 Drainage part 46 Extension

Claims (2)

In the corner of the outer wall of the building where the ceramic siding panel is installed
An entrance joiner that is arranged so as to extend in the vertical direction between the adjacent panels and connects the adjacent panels to each other.
With a drainage member located below the inside corner joiner,
The inside corner joiner is arranged downward so as to allow ventilation or water flow between the back surface of the panel and the mounting surface of the building to which the panel is mounted.
The drainage member is a guide portion arranged along the extending direction of the inside corner joiner, and a drainage portion arranged at the lower end of the guide portion and extending from the guide portion toward the outdoor side surface of the outer wall. Have and
The inside corner joiner includes a first side surface along one outer wall adjacent to the inside corner portion, a second side surface along the other outer wall, and a connecting portion connecting the first side surface and the second side surface. Have,
The guide portion has a guide portion first side surface along the first side surface and a guide portion second side surface along the second side surface.
The drainage portion is composed of a surface that connects the lower ends of each of the first side surface of the guide portion and the second side surface of the guide portion and extends to the outdoor side of the inside corner portion.
The guide portion is a drainage structure of a building outer wall having an extension portion extending below the drainage portion from the lower ends of each of the first side surface of the guide portion and the second side surface of the guide portion . The drainage structure for a building outer wall according to claim 1, wherein the drainage portion is inclined downward from the panel side toward the outdoor side surface of the outer wall.

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