JPH0370056B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a sealing structure for an exterior wall panel.

[Prior Art] As an exterior wall structure of a building, there is a structure in which a plurality of exterior wall panels are supported horizontally adjacent to each other on a building structure, and these horizontally adjacent exterior wall panels are, for example, It is arranged above lower wall members such as lower floor external wall panels, roof panels, eaves, and window frame members arranged on the lower floor side.

Joints are formed between horizontally adjacent exterior wall panels, and these joints need to be waterproofed and sealed. For this reason, previously
A joint treatment method described in the above publication has been proposed. This joint treatment method involves applying a back plate to the back side of an adjacent exterior wall panel, and filling the joint with putty or caulking. Furthermore, the surface of the filled putty or caulking material is sprayed with paint for finishing.

[Problems to be Solved by the Invention] However, operations such as filling with putty, caulking, and spraying paint are complicated, and these operations must be performed by erecting scaffolding at the construction site. For this reason, the number of man-hours required at the construction site increases, and this is not appropriate, especially in the case of prefabricated buildings and unit buildings, as it goes against the idea of the construction method of omitting site work.

In addition, putty, caulking, and paint have the disadvantage that they crack or develop cracks over time, reducing their waterproof properties.

In addition, in the above-mentioned conventional joint treatment method, the gap between the lower end of the outer wall panel along the joint and the lower wall member is not waterproofed, and there is a risk that rainwater may infiltrate into the room from the gap. be.

The present invention closes joints that occur between horizontally adjacent exterior wall panels with a simple operation, and reliably closes the gap between the lower end of the exterior wall panel and the wall lower member along the joint, The purpose is to improve the waterproofing properties of joints and under-wall areas.

[Means for Solving the Problems] In order to solve the above object, the present invention is arranged above a wall bottom member and closes joints that occur between horizontally adjacent exterior wall panels. In the sealing structure of the exterior wall panel, a waterproof sheet having an engaging portion extending along the side edge is attached to the side edge portion of both adjacent exterior wall panels facing the joint portion,
The engaging portions of both tarpaulins are engaged with each other to close the joint, and the mutually engaged lower ends of both tarpaulins are suspended from the lower wall member, and the lower ends of both tarpaulins are suspended. It is designed to cover the surface of the lower wall member.

[Function] According to the present invention, both waterproof sheets can be combined by mutually engaging the engaging portions provided in both waterproof sheets attached to both adjacent outer wall panels. As a result, both the waterproof sheets are integrated and continuous, and the joint can be closed in a sealed state by both the waterproof sheets.

In addition, since the mutually attached lower ends of both waterproof sheets extend to the surface of the wall bottom member and cover the wall bottom member, the lower ends along the joints of the exterior wall panel and the wall bottom member are connected to each other. The gap can be closed.

Therefore, it is possible to close the joints that occur between horizontally adjacent exterior wall panels by a simple operation without filling with putty, applying caulking, etc., and to seal the joints between the exterior wall panels. Reliably closes the gap between the lower end and the lower wall member,
It is possible to improve the waterproofing properties of the joints and the lower part of the wall.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a sealing structure for an exterior wall panel according to an embodiment of the present invention, FIG. 2 is a perspective view showing a housing unit using the sealing structure for an exterior wall panel shown in FIG. 1, and FIG. FIG. 4 is a perspective view showing the fixed state of each outer wall panel; FIG. 5 is a sectional view taken along the line - in FIG. 1;
Figure 6 is a sectional view taken along the - line in Figure 1, Figure 7 is a perspective view showing both the attached waterproof sheets stored between the pillars, and Figure 8 is taken along the - line in Figure 7. 9 is a perspective view showing a state in which a gasket is inserted into the joint and the area corresponding to the gap is covered with a decorative cover, and FIG. 10 is a sectional view along the line shown in FIG.
FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 9.

In FIG. 2, four building units stacked one above the other and arranged horizontally adjacent to each other form part of a housing unit. The building units include a lower floor building unit 10A arranged on the lower floor side and an upper floor building unit 10B arranged on the upper floor side.
B is formed by connecting a plurality of structures to form an overall box shape. That is, each building unit 10
A and 10B have pillars 11 erected at the four corners, a pair of girder beams 12 and a girder beam 13 on the lower side of the units 10A and 10B, and a pair of girder beams 14 and a girder beam 13 on the upper side of the units 10A and 10B. A gable beam 15 is provided. Each of the girder beams 12 and 14 and the end beams 13 and 15 has an end connected to a corresponding column 11. Also,
A plurality of small beams 16 are arranged between the lower pair of girders 12, and each small beam 16 is connected to the girder 12 at an end. Further, a plurality of small beams 17 are arranged between the upper pair of girders 14, and each small beam 17 has an end connected to the respective girder 14.

Each building unit 10 formed in this way
A and 10B are parts constituting the outer wall of the unit house, and outer wall panels are fixed to the corresponding outer surfaces of each unit 10A and 10B. That is, the horizontally adjacent lower floor building unit 10A
A lower floor exterior wall panel 18A is attached to each outer surface of the upper floor building unit 10B in the direction of the arrow in FIG. 2, and an upper floor outer wall panel 18B is attached to each outer surface of the horizontally adjacent upper floor building unit 10B in the direction of the arrow in FIG. Each is fixed. Each of the outer wall panels 18A, 18B is constructed by attaching a metal panel frame 20 to the back side of a facing material 19 formed of a hard wood cement board or a gypsum board (see FIG. 3).

Studs 21 are arranged at predetermined intervals on the outer surface of each building unit 10A, 10B to which the respective outer wall panels 18A, 18B are fixed (see FIG. 2). Each stud 21 is connected at its upper end to the girder beam 14 and at its lower end to the girder beam 12 using bolts 22 and nuts 23, respectively (see FIGS. 8 and 11).

The fixing of the lower floor exterior wall panel 18A to the outer surface of the lower floor building unit 10A and the fixing of the upper floor exterior wall panel 18B to the upper floor building unit 10B are as follows:
This is done by joining the panel frame 20 on the back side of each panel 18A, 18B to the pillars 11 and studs 21 of the units 10A, 10B using rivets 24 (see FIGS. 8, 10, and 11).

Among the outer wall panels 18A and 18B fixed to each unit 10A and 10B and arranged above and below,
A lower floor joint portion 25A is formed between the lower floor outer wall panels 18A that are adjacent in the horizontal direction (direction of arrow A) (see FIG. 4). Also, in the horizontal direction (direction of arrow A)
An upper floor joint portion 25B is formed between the upper floor outer wall panels 18B adjacent to each other (see FIG. 4). Also,
Between the lower end of each upper floor exterior wall panel 18B and the upper end of each lower floor exterior wall panel 18A as a wall lower member disposed under the wall of the upper floor exterior wall panel 18B,
Gap portion 2 extending along the horizontal direction (direction of arrow A)
6 is formed.

By the way, among the horizontally adjacent upper floor exterior wall panels 18B, one upper floor exterior wall panel 18B
A joint waterproof sheet 27A is attached to the side edge facing the upper floor joint part 25B of the outer wall panel 18B on the right side in FIG. Joint waterproof sheets 27B are attached in advance to the side edges of the panels 18B) facing the upper floor joints 25B. Each joint waterproof sheet 27A, 27B is a long one that extends vertically along the side edge of the corresponding upper floor external wall panel 18B, and its base end in the width direction is provided on the back surface of the panel 18B. panel frame 20
It is attached to each panel 18B by bonding with double-sided adhesive tape 28 (see FIGS. 1 and 10). Waterproof sheet for each joint 27A, 2
7B is formed from a flexible material such as a soft polyvinyl chloride sheet, a polyethylene sheet, or a rubber sheet. Also, waterproof sheet 27A for each joint,
The lower end of panel 27B extends below the lower end of panel 18B.

Here, each joint waterproof sheet 27A, 27
A male rail portion 3 is provided at the tip end in the width direction of the waterproof sheet 27A for joints.
0 is set in advance. Waterproof sheet for joints 27
At the tip in the width direction of B, there is an upper floor external wall panel 18B.
A female rail portion 32 including a groove 31 (engaging portion) extending along the side edge is provided in advance. The protrusions 29 and grooves 31 are made of a slightly flexible synthetic resin such as polyvinyl chloride or polyethylene. Waterproof sheets for each of the above joints 27A, 27B
are temporarily fixed to the surface of the facing material 19 of the upper floor exterior wall panel 18B using adhesive tape 33 or the like at their widthwise ends during the installation stage of the exterior wall panel 18B (see FIGS. 2 and 4). . At this time, the extension part 3 at the lower end of each joint waterproof sheet 27A, 27B
4 is in a folded state as shown in FIG.

On the other hand, the upper end of the water-draining waterproof sheet 35 is attached in advance to the back surface of the lower end facing the gap 26 of each upper floor outer wall panel 18B adjacent to each other in the horizontal direction (direction A). The waterproof sheet 35 for draining is
It is a long piece extending along the longitudinal direction (direction A) of the lower end of the upper floor exterior wall panel 18B, and is made of a flexible material such as a polyethylene sheet or a polyvinyl chloride sheet. The water-draining waterproof sheet 35 is attached to the back surface of the upper floor exterior wall panel 18B by joining the upper end of the sheet 35 to the panel frame 20 provided on the back surface of the panel 18B via double-sided adhesive tape 36. (See Figures 8 and 11). The above-mentioned waterproof sheet 35 for draining water at the stage of installing the outer wall panel 18B
are temporarily fixed at their lower ends in the longitudinal direction (direction A) to the facing material 19 of the outer wall panel 18B using adhesive tape 33 (see FIGS. 2 and 4).
At this time, the upper floor joint part 25B of the draining sheet 35
The side is overlapped with the extension part 34 of the folded joint waterproof sheet 27A or 27B.

In addition, each horizontally adjacent lower floor exterior wall panel 1
8A, one lower floor exterior wall panel 18A (second
On the side edge facing the lower floor joint part 25A of the outer wall panel 18A on the right side of the figure, there is a joint waterproof sheet 27A, similar to the one upper floor outer wall panel 18B.
In addition, on the side edge facing the lower floor joint part 25A of the other lower floor exterior wall panel 18A (the left exterior wall panel 18A in FIG. 2), the other upper floor exterior wall panel 18
Similarly to B, a joint waterproof sheet 27B is attached. These joint waterproof sheets 27A, 27B
are also temporarily fixed to the surface of the facing material 19 during the installation stage of the lower floor exterior wall panel 18A (see Figs. 2 and 4).
(see figure).

Each upper floor exterior wall panel 18B is fixed to the outer surface of the upper floor building unit 10B as described above, with the waterproof sheet 27A or 27B for joints and the waterproof sheet 35 for draining temporarily attached as described above. (See Figure 4). In addition, each upper floor exterior wall panel 18
When connecting the back side of B to the corresponding pillar 11, a synthetic resin foam 37 is adhered to the back side of the pillar 11 of the building unit 10B.
A synthetic resin foam 38 is placed on the outer surface of the girder 12 of B.
is pasted (see Figure 4). As a result, pillar 11
When the panel frame 20 is joined to the joint waterproof sheets 27A and 27B, the base portions in the width direction of each joint waterproof sheet 27A and 27B are attached to the foam 37 attached to the column 11, and each waterproof sheet The base end portions of 27A and 27B in the width direction are tightly sandwiched and joined to both the panel frame 20 and the pillar 11 (see FIG. 10). Moreover, the longitudinal direction (direction A) of the upper end of the waterproof sheet for draining 35 is attached to a synthetic resin foam 38 attached to the girder 12 . Therefore, the waterproof sheet for draining 35
The upper end portion of the foam member 38 is tightly sandwiched between the panel frame 20 and the foam member 38 attached to the beam 12 (see FIGS. 8 and 11).

Each lower floor outer wall panel 18A to which the joint waterproof sheet 27A or 27B is temporarily fixed is also fixed to the outer surface of the corresponding lower floor building unit 10A in a similar manner.

In this way, while the upper floor exterior wall panel 18B is fixed to the outside surface of the upper floor building unit 10B and the lower floor exterior wall panel 18A is fixed to the outside surface of the lower floor building unit 10A, the upper floor exterior wall panel 1
The lower end of the water-draining waterproof sheet 35 to which the face material 19 of 8B is temporarily fixed is released from the temporarily fixed state by peeling off the adhesive tape 33. The lower end of the draining waterproof sheet 35, which has been released from the temporarily fixed state, is suspended downward from the lower end of the upper floor outer wall panel 18B (the position indicated by the chain line), as shown in FIG. The lower end of the dripping waterproof sheet 35 that is hung down covers the upper part of the surface of the lower floor exterior wall panel 18A, as shown by the two-dot chain line in FIG. (No. 8)
10 and 11). As a result,
The gap 26 is closed by a water-draining waterproof sheet 35 (see FIG. 8).

When the gap 26 is closed by the waterproof sheet 35, both materials 1 of the upper floor exterior wall panel 18B are closed.
Each joint waterproof sheet 27A, 2 temporarily fixed to 9
By peeling off the adhesive tape 33, the tip end in the width direction of 7B is released from the temporarily fixed state. The tips of the joint waterproof sheets 27A and 27B, whose temporary fixing has been released, are attached to each upper floor exterior wall panel 1, as shown in FIG.
It extends outward from the side end of 8B (the position indicated by the chain line). In addition, each joint waterproof sheet 27A, 27
The folded state of the extending portion 34 at the lower end of B is released, and the extending portion 34 is suspended from the surface of the lower floor outer wall panel 18A. After the temporary fixing state is released, the male rail portion 30 and the female rail portion 32 at the tips of each joint waterproof sheet 27A, 27B are brought into contact with each other, and the two are engaged. Male rail part 30 and female rail part 32
The engagement operation is carried out by fitting the upper end of the protrusion 29 of the male rail part 30 into the upper end of the groove 31 of the female rail part 32, and then attaching the slider 40 that has been attached to the upper end of the female rail part 32 in advance. Pull it down in the direction of arrow B (see Figure 1). That is, the slider 40 has each rail section 30, as shown in FIG.
32 from the outside and apply an external force such that the protrusion 29 and the groove 31 fit together in the direction of arrow C.
0.32. slider 40
is pulled down by pulling the handle 41 attached to the surface of the slider 40 in the direction of arrow B. As a result, the opposing protrusions 29 and grooves 31 shown in FIG. 6 are fitted in sequence from above and are engaged with each other.

Waterproof sheets 27A and 27B for both joints have protrusions 2
9 and the groove 31 are engaged in the vertical direction, so that they are integrally connected and continuous, thereby sealing the upper floor joint portion 25B. It is preferable that the protrusions 29 and the grooves 31 be made of a slightly flexible synthetic resin, since this will ensure complete sealing. In addition, the extending portions 34 of both joint waterproof sheets 27A and 27B that are integrally combined are superimposed on the surface side of each draining waterproof sheet 35, as shown in FIG. hanging down. As a result, the lower end along the upper floor joint 25B, the gap 26 between the upper floor joint 25B and the lower floor joint 25A, and the upper end of the lower floor joint 25A are connected to each other. It is covered by the extending portion 34 of.

In addition, both joint waterproof sheets 27A and 27B attached to the lower floor exterior wall panel 18A are the upper floor waterproof sheet 35 for drainage, the joint waterproof sheet 27A,
Before 27B is waterproofed as described above, the waterproof sheets 27A, 2 for the joints on the upper floor side are installed.
It is secured and integrally connected in the same manner as 7B.
As a result, the lower floor joint portion 25A is also covered with both joint waterproof sheets 27A and 27B (see FIG. 1).

Waterproof sheet 27 for each joint on the upper floor side and lower floor side
A and 27B are stored between adjacent pillars 11 inside each joint portion 25A and 25B (see FIG. 7). Both joint waterproof sheets 27A and 27B are stored by pushing the joint of both sheets 27A and 27B between the pillars 11 using a rod or the like. At this time, the sheets 27A, 2 are
To avoid damaging 7B, use a rod with a blunt tip.

As shown in FIG. 7, when both waterproof sheets 27A and 27B are stored between adjacent pillars 11, gaskets 42 are inserted into each of the lower floor joint portion 25A and the upper floor joint portion 25B. (See Figure 4). The gasket 42 is made of a material such as rubber or flexible resin, and is elongated in the vertical direction corresponding to each joint portion 25A, 25B. gasket 42
are inserted into each joint portion 25A, 25B and come into close contact with the side edge of each adjacent outer wall panel 18A, 18B, and as a result, each joint portion 25
A and 25B are gaskets 42 to be inserted respectively.
(See Figure 9).

In addition, as shown in FIG. 7, the area corresponding to the gap 26 closed by the waterproof sheet for draining 35 and the hanging portion of the waterproof sheet for draining 35 are provided with attachment fittings 4.
3 and the decorative cover 44 are attached in the direction of the arrow (see FIGS. 4 and 7). The makeup cover 44 is
It is elongated in the direction of arrow A along the gap 26 and is made of synthetic resin-coated steel. The decorative cover 44 is attached to the gap 26 and corresponds to the gap 26, the upper surface of the lower floor exterior wall panel 18A, and the lower surface of the upper floor exterior wall panel 18B, from which the draining waterproof sheet 35 hangs. Cover the area.

The fitting 43 attaches the decorative cover 44 to the gap 2.
6, and a plurality of them are arranged at predetermined intervals in the direction of arrow A. Each mounting tool 43
is provided with a positioning piece 45 above the back surface, and a first mounting piece 46 and a second mounting piece 4 on the positioning piece 45 and the back surface below the positioning piece 45.
7. Each of the third mounting pieces 48 is provided. The fixture 43 attaches the positioning piece 45 to the upper floor exterior wall panel 18B.
In this state, the first mounting piece 46 is screwed to the face material 19 of the upper floor exterior wall panel 18B with the mounting screw 49, and the second mounting piece 47 and the third mounting piece 48 are screwed onto the face material 19 of the lower floor exterior wall panel 18A using mounting screws 49 (see FIGS. 10 and 11). As a result, the fixture 43 is supported by the gap 26. The second attachment piece 47 also has the function of fixing the lower end of the waterproof sheet for draining 35 or the extension portions 34 of the polymerized waterproof sheets for joints 27A and 27B and the waterproof sheet for draining 35 to the face material 19. Be prepared.

A decorative cover 44 is supported by the fixture 43 in a state that it is fitted onto the upper and lower ends of the fixture 43 (see FIGS. 10 and 11). A recess 50 is formed above the back surface of the decorative cover 44 supported by the fixture 43. The recess 50 is in close contact with a long sealing member 51 that is previously attached to the lower surface of the upper wall panel 18B (see FIGS. 10 and 11), and the decorative cover 44 and the outer wall panel 18B of the upper floor are in close contact with each other. A sealing member 51 seals between the lower surface of the holder and the lower surface of the holder. In this way, the outer wall of the unit house is formed as shown in FIG.

Next, the operation of the above embodiment will be explained.

According to the above embodiment, the protrusion 2 of the male rail portion 30 provided on the joint waterproof sheet 27A attached to one of the upper floor outer wall panels 18B adjacent to the upper floor side.
9 and the concave groove 31 of the female rail portion 32 provided in the joint waterproof sheet 27B attached to the other upper floor external wall panel 18B are reliably and easily engaged with each other by pulling down the slider 40. As a result, the waterproof sheet 27A for both joints,
27B are integrally combined. As a result, both joint waterproof sheets 27A, 27A are integrated and continuous,
Both waterproof sheets 27A, 27B cover the upper floor joint 25B.
It can be closed in an airtight state.

Further, the extension portions 34 that are attached to each other at the lower ends of both joint waterproof sheets 27A and 27B are suspended from the surface portion of the lower floor exterior wall panel 18A as a wall lower member, and are drainers that close the gap portion 26. waterproof sheet 3
5. As a result, the upper floor joint part 25B
The lower end along the upper floor joint 25B and the gap 26 between the upper floor joint 25B and the lower floor joint 25A, the upper end of the lower floor joint 25A, and the surface of the lower floor outer wall panel 18A are each attached to the lower end. It is covered and closed by the extension part 34.

Therefore, the upper floor joint 25B that occurs between the adjacent upper floor outer wall panels 18A can be closed by a simple operation without any work such as filling with putty or caulking, and the upper floor outer wall panels can be closed. 1
The lower end portion along the joint portion 25B of 8A and the gap portion 2 between the upper floor joint portion 25B and the lower floor joint portion 25A
6. Furthermore, it is possible to improve the waterproofing property of the upper end of the lower floor joint portion 25A and the surface portion of the lower floor outer wall panel 18A.

In addition, as shown in Fig. 10, the lower floor exterior wall panel 1
Waterproof sheet 27 for both joints that covers the upper end side surface part of 8A and is superposed on the waterproof sheet 35 for draining.
The extension portions 34 of A and 27B are attached to the face material 19 of the lower floor exterior wall panel 18A by the second attachment piece 47 of the attachment 43.
The waterproof sheets 27A, 27B for both joints are fixed in place, and the lower ends of the waterproof sheets 27A, 27B do not roll up, allowing rainwater to flow indoors from between the lower ends of the sheets 27A, 27B and the facing material 19 of the lower floor exterior wall panel 18A. Infiltration is avoided.

In addition, the waterproof sheets 27A and 27B for both joints attached to the adjacent lower floor exterior wall panel 18A are attached, thereby closing the lower floor joint 25A, and similarly to the upper floor joint 25B, the lower floor joint It is possible to improve the waterproofing property of 25A.

In addition, the waterproof sheets 27A and 27B for both joints are applied to the lower floor joint portion 25A and the upper floor joint portion 25B, respectively.
, and each joint part 25A, 25B
By inserting the gasket 42 into each joint part 2,
5A, 25B as joint waterproof sheets 27A, 27B
The gasket 42 makes it possible to achieve double sealing, and the waterproofing of the joints 25A and 25B can be ensured.

The upper end of the waterproof sheet for draining 35 is supported by the back side of the upper floor external wall panel 18B that stands vertically, and the lower end of the waterproof sheet for draining 35 is supported by the lower floor external wall panel as a wall lower member. It will be suspended from the upper surface of the panel 19 of 18A.
Therefore, the draining waterproof sheet 35 is in a vertical state on the back surface of the upper floor exterior wall panel 18B, and the gap 2
6, it is possible to prevent rainwater from entering in the horizontal direction from between the draining waterproof sheet 35 and the lower end of the upper floor outer wall panel 18B.

Further, the lower end of the water-draining waterproof sheet 35 is attached to the upper surface of the panel 19 of the lower floor exterior wall panel 18A using double-sided adhesive tape 39, and is further attached to the panel 19 by the second mounting piece 47 of the fixture 43. 19, the lower end of the water-draining waterproof sheet 35 does not roll up, preventing rainwater from entering the room from between the lower end of the sheet 35 and the facing material 19 of the lower floor exterior wall panel 18A. be done.

Further, a corresponding area of the gap 26 including the gap 26 and the hanging portion of the waterproof sheet 35 is covered by a decorative cover 44, and a sealing member 51 is provided between the upper end of the decorative cover 44 and the upper floor outer wall panel 18B. It will be sealed by. As a result, rainwater spraying onto the outer wall of the building can be removed from the decorative cover 4.
4 seals the primary side, and further seals the secondary side using the water-draining waterproof sheet 35, making it possible to completely block rainwater from entering the indoor side.

In addition, as in the above embodiment, the male rail part 30 with the protrusion 29 and the female rail part 32 with the groove 31 are connected to the corresponding joint waterproof sheets 27A, 2.
Although it may be attached to the tip of the waterproof sheet for joints, a protrusion or a groove may be integrally formed on the tip of the waterproof sheet for joints. Moreover, for the work of engaging the protrusion and the groove, hands or a pinch roller may be used instead of using the slider.

Further, in the above embodiment, the engaging portions are the protrusions 29 and the grooves 31, but both of the engaging portions are fastener-like with a large number of engaging teeth, and these engaging teeth are mutually connected. It may also be something that is attached to.

Further, in the above embodiment, the lower wall member is the lower floor exterior wall panel 18A, but the lower wall member may be, for example, an eave, a roof panel, a window frame member, or the like.

[Effects of the Invention] As described above, the present invention provides a sealing structure for an exterior wall panel that is disposed above a wall lower member and closes joints that occur between horizontally adjacent exterior wall panels. A waterproof sheet having an engaging portion extending along the side edge is attached to the side edge portion of both exterior wall panels facing the joint portion, and the engaging portions of both waterproof sheets are engaged with each other. In addition to closing the joint, the lower ends of both waterproof sheets, which are attached to each other, are suspended from the lower wall member, so that the lower ends of both waterproof sheets cover the surface of the lower wall member. It is.

Therefore, by a simple operation, the joints that occur between horizontally adjacent exterior wall panels are closed, and the gap between the lower end of the exterior wall panel along the joint and the wall lower member is reliably closed, It is possible to improve the waterproofing properties of the joints and the lower part of the wall.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a sealing structure for an exterior wall panel according to an embodiment of the present invention, FIG. 2 is a perspective view showing a housing unit using the sealing structure for an exterior wall panel shown in FIG. 1, and FIG. FIG. 4 is a perspective view showing the fixed state of each outer wall panel; FIG. 5 is a sectional view taken along the line - in FIG. 1;
Figure 6 is a sectional view taken along the - line in Figure 1, Figure 7 is a perspective view showing both the attached waterproof sheets stored between the pillars, and Figure 8 is taken along the - line in Figure 7. 9 is a perspective view showing a state in which a gasket is inserted into the joint and the area corresponding to the gap is covered with a decorative cover, and FIG. 10 is a sectional view along the line shown in FIG.
FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 9. 18A... Lower floor external wall panel (lower wall member), 18
B...Upper floor external wall panel, 25A...Lower floor joint area,
25B... Upper floor joint part, 27A, 27B... Waterproof sheet for joints, 29... Projection (engaging part), 31...
... Concave groove (engaging portion), 34... Extension portion.

Claims (1)

[Scope of Claims] 1. In a sealing structure of an exterior wall panel that is disposed above a wall lower member and closes a joint that occurs between horizontally adjacent exterior wall panels, the above-mentioned sealing structure of both adjacent exterior wall panels On the side edge facing the joint,
A waterproof sheet having engaging portions extending along the side edges is attached, and the engaging portions of both waterproof sheets are engaged with each other to close the joint portion, and the engaging portions of both waterproof sheets are engaged with each other. A sealing structure for an exterior wall panel, characterized in that the lower ends of the waterproof sheets are suspended from the wall lower member, and the lower ends of both waterproof sheets cover the surface of the wall lower member. 2. A sealing structure for an exterior wall panel according to claim 1, wherein one of the engaging portions is a protrusion, the other of the engaging portion is a groove, and the protrusion and the groove are mutually engaged. . 3. The outer wall panel sealing structure according to claim 1, wherein both engaging portions are composed of a large number of engaging teeth, and both engaging teeth are engaged with each other. 4. Claim 1, wherein both of the mutually engaged waterproof sheets are stored inside the joint portion.
The seal structure of an exterior wall panel according to item 1, 2 or 3. 5. The outer wall according to claim 1, 2, 3, or 4, wherein the lower ends of both waterproof sheets covering the surface of the lower wall member are attached to the surface of the lower wall member. Panel seal structure.