JPH0370057B2 - - 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. In such an exterior wall configuration, joints are formed between adjacent exterior wall panels in the horizontal direction. In addition, these horizontally adjacent exterior wall panels are arranged above lower wall members such as lower floor exterior wall panels, floor panels, window frame members, etc. arranged on the lower floor side, and A gap is formed between the two.

These joints and gaps need to be waterproofed and hermetically sealed.
A joint treatment method described in Publication No. 44822 has been proposed. In this method, a back plate is applied to the back side of an adjacent exterior wall panel, and the joints and gaps are filled with putty or caulked. 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.

The present invention reliably closes the joints between horizontally adjacent exterior wall panels and the gaps between the exterior wall panels and wall bottom members with a simple operation, and improves the waterproofing properties of the joints and gaps. The purpose is to

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention closes joints that occur between horizontally adjacent exterior wall panels disposed above a wall bottom member, and In a sealing structure for an exterior wall panel that closes a gap created between the lower end of the exterior wall panel and a wall bottom member,
Attaching a waterproof sheet having an engaging portion extending along the side edge facing the joint portion to the side edge portion facing the joint portion and the lower edge portion facing the gap portion of both adjacent exterior wall panels, The engaging portions of both waterproof sheets are engaged with each other to close the joint, and the lower ends of both waterproof sheets are suspended from the lower wall member, and the lower ends of both waterproof sheets are used to connect the lower wall member. The surface is coated.

[Function] According to the present invention, among the waterproof sheets attached to both adjacent exterior wall panels, the joints are closed by mutually engaging the engaging portions provided on the side edges of both waterproof sheets. Furthermore, the gap is closed by covering the surface of the wall under-wall member with the lower ends of both waterproof sheets. Therefore, it is possible to reliably waterproof the joint portion by a simple operation without having to perform operations such as filling with putty and applying coating.

In the sealing structure of the exterior wall panel according to the present invention, a waterproof sheet is attached to the lower edge of the exterior wall panel, the lower end of the waterproof sheet is suspended from the surface of the lower wall member, and the lower end of the waterproof sheet is attached to the wall. The surface portion of the lower member is covered. Therefore, the waterproof sheet is in a substantially vertical state at the lower edge of the outer wall panel, and prevents rainwater from entering the room horizontally from the gap at the lower edge of the outer wall panel.

[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 of an exterior wall panel according to an embodiment of the present invention, FIG. 2 is a perspective view showing a part of a unit house using the sealing structure of an exterior wall panel shown in FIG. 1, and FIG. The figure is a view taken along the - line in Fig. 2, 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, and Fig. 6 is a sectional view taken along the - line in Fig. 1. A cross-sectional view along the - line in the figure,
Figure 7 is a perspective view showing the attached waterproof sheet stored between the pillars, Figure 8 is a sectional view taken along the - line in Figure 7, and Figure 9 is a perspective view of the upper and lower floor joints. A perspective view showing a state in which a gasket is inserted and a region corresponding to the gap is covered with a decorative cover, No. 10
The figure is a sectional view taken along the - line in FIG. 9, and FIG. 11 is a sectional view taken along the line XI--XI in FIG. 9.

In FIG. 2, six building units stacked one above the other and arranged horizontally adjacent to each other constitute a 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 pair of girder beams 12 on the lower side. Each beam 16 is connected at its end to a girder 12. 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 arranged in an L-shape in plan view, as shown in FIG. Among these, the horizontal direction (direction of arrow A) of three lower-floor building units 10A that are arranged adjacent to each other.
A first lower floor exterior wall panel 18A, a second lower floor exterior wall panel 18B, and a third lower floor exterior wall panel 18C are fixed to each unit 10A corresponding to the direction of the arrow in FIG. 2, in order from the right. Further, on the outer surface in the horizontal direction (direction of arrow A) of the three adjacent upper floor building units 10B, from the right, a first upper floor outer wall panel 19A, a second upper floor outer wall panel 19B, and a third upper floor outer wall panel 19B are arranged. The floor outer wall panel 19C is fixed to each corresponding unit 10B from the direction of the arrow in FIG. Each of the lower floor exterior wall panels 18A to 18C and the upper floor exterior wall panels 19A to 19C is constructed by attaching a metal panel frame 21 to the back side of a facing material 20 formed of hard wood cement board or gypsum board ( (See Figure 3).

Each outer wall panel 18A to 18C, 19A
- Each building unit 10A, 1 to which 19C is fixed
Studs 22 are arranged between the columns 11 on the outer surface of 0B (see FIG. 2). Each stud 22 has an upper end attached to the girder beam 14 and a lower end attached to the girder beam 12, and a bolt 2, respectively.
3 and nuts 24 (see FIGS. 8 and 11).

The fixing of the corresponding lower floor exterior wall panels 18A to 18C to the outer surface of each lower floor building unit 10A and the fixation of the corresponding upper floor exterior wall panels 19A to 19C to each upper floor building unit 10B are carried out by a panel frame 21 on the back side of each panel. unit 10A,
This is done by joining the pillars 11 and studs 22 of 10B using rivets 25 (Fig. 8,
(See Figures 10 and 11).

Each outer wall panel 18A to 18C, 19A is fixed to each unit 10A, 10B and arranged above and below.
~ 19C, between the first lower floor exterior wall panel 18A and the second lower floor exterior wall panel 18B adjacent to each other in the horizontal direction (in the direction of arrow A), and the second lower floor exterior wall panel 18B
A lower floor joint portion 26 is formed between the lower floor outer wall panel 18C and the third lower floor outer wall panel 18C (see FIG. 4). Moreover, between the first upper floor exterior wall panel 19A and the second upper floor exterior wall panel 19B and between the second upper floor exterior wall panel 19B and the third upper floor exterior wall panel 19C, which are adjacent in the horizontal direction (direction of arrow A), Upper floor joint section 27 respectively
is formed (see Figure 4). Also, between the first upper floor exterior wall panel 19A and the upper end of the first lower floor exterior wall panel 18A (wall lower member) disposed under the wall of the panel 19A, the second upper floor exterior wall panel 19B and the panel 19B and the upper end of the second lower floor external wall panel 18B (wall lower member) arranged under the wall, and the third
Lower floor exterior wall panel 18C and third lower floor exterior wall panel 18C (wall lower member) disposed under the wall of the panel 18C
A gap portion 28 extending in the horizontal direction (direction of arrow A) is formed between the upper end portion and the upper end portion.

Incidentally, each of the horizontally adjacent upper floor external wall panels 19A to 19C has a waterproof sheet 29 that extends from the side edge facing the upper floor joint 27 to the lower edge facing the gap 28 of the panel. is attached. That is, each outer wall panel 19A to 19C
Of the waterproof sheets 29 attached to each of
The waterproof sheet 29 attached to the first upper floor exterior wall panel 19A and the third upper floor exterior wall panel 19C has an L-shape or an inverted L-shape along the upper floor joint 27 and the gap 28 (see Fig. 3). reference). Further, the waterproof sheet 29 attached to the second upper floor outer wall panel 19B has a U-shape along the upper floor joint portion 27 and the gap portion 28. Furthermore, a waterproof sheet 30 is attached to each of the horizontally adjacent lower floor outer wall panels 18A to 18C along the side edge facing the lower floor joint section 26. That is, each lower floor exterior wall panel 18A~
The waterproof sheet 30 attached to 18C is a long one that extends in the vertical direction along the lower floor joint section 26.

Each waterproof sheet 29, 30 has its base end in the width direction connected to each panel 18A to 18C, 19A to 19C.
Each panel 18A to 1 is bonded to a panel frame 21 provided on the back side of the
8C, 19A to 19C (see FIGS. 1, 8, 10, and 11). Further, each of the waterproof sheets 29, 30 has a tip end in the width direction extending outward from the side edge or lower edge of the panel (see FIG. 3). Each of these waterproof sheets 29, 30
is a flexible PVC sheet,
It is formed from materials such as polyethylene sheets and rubber sheets.

Among the waterproof sheets 29 attached to each of the upper floor exterior wall panels 19A to 19C, the tip of the side edge of one of the waterproof sheets 29 adjacent to the upper floor joint 27 (for example, as shown in FIGS. 1 and 4) A male rail portion 33 having a protrusion 32 (engaging portion) extending along the side edge of the panel is provided in advance at the tip in the width direction along the side edge of the left waterproof sheet 29. Also, the other adjacent waterproof sheet 2 facing the upper floor joint 27
9 (for example, the widthwise tip along the side edge of the right waterproof sheet 29 shown in FIGS. 1 and 4) is provided with a groove 3 extending along the side edge of the panel.
4 (engaging portion) is provided in advance. The protrusions 32 and grooves 34 are made of a slightly flexible synthetic resin such as polyvinyl chloride or polyethylene.

As mentioned above, the upper floor joint part 2 of the waterproof sheet 29
Each upper floor exterior wall panel 19A~ is provided with a male rail portion 33 or a female rail 35 in the corresponding area of 7.
19C, the tip portion where each rail portion 33, 35 is provided is temporarily fixed to the surface of the panel during the installation stage of the panel. Furthermore, the lower end of the waterproof sheet 29 facing the gap 28 is also temporarily fixed to the surface of the panel. For temporary fixing, as shown in FIG. 2 and FIG.
This is done by supporting it on the face material 20 of 9C.

In addition, each horizontally adjacent lower floor exterior wall panel 1
The waterproof sheets 30 provided at 8A to 18C include
Similarly to each of the upper floor exterior wall panels 19A to 19C, the tip of the side edge of one of the adjacent waterproof sheets 30 facing the lower floor joint area 26 (for example, the side edge of the left waterproof sheet 30 shown in FIGS. 1 and 4) The male rail part 33 according to the above structure is attached to the tip (in the width direction along the width direction), and the other adjacent waterproof sheet 3 facing the lower floor joint part 26
Female rail portions 35 having the above-mentioned configuration are provided at the tip ends of the side edges of the waterproof sheet 30 (for example, the tip portions in the width direction along the side edges of the right waterproof sheet 30 shown in FIGS. 1 and 4). In addition, each lower floor exterior wall panel 18A~
18C is temporarily fixed to the facing material 20 with adhesive tape 36 in the same manner as the above-mentioned upper floor exterior wall panels 19A to 19C at the tip end where each rail portion 33, 35 is provided during the installation stage of the panel.

Each of the upper floor exterior wall panels 19A to 19C is fixed to the outer surface of the upper floor building unit 10B as described above, with the waterproof sheet 29 temporarily attached as described above (see FIG. 4).

In addition, when connecting the back side of each upper floor exterior wall panel 19A to 19C to the corresponding column 11, the surface of the column 11 of the building unit 10B, the girder 12, and the girder 1
A synthetic resin foam 37 is adhered to the outer surface of 3 (see FIG. 4). As a result, when the panel frame 20 is joined to the pillar 11, the base portion of the waterproof sheet 29 in the width direction is adhered to the synthetic resin foam 37, and the base portion of the waterproof sheet 29 in the width direction is attached to the synthetic resin foam 37. The end portions are tightly sandwiched and joined between the panel frame 20 and the column 11 and between the panel frame 20 and the girder 12 or the end beam 13 (see FIGS. 8, 10, and 13). (See Figure 11).

Further, each of the lower floor outer wall panels 18A to 18C to which the waterproof sheet 30 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, each upper floor exterior wall panel 19A-1
9C is fixed to the outer surface of the corresponding upper floor building unit 10B, and each of the lower floor exterior wall panels 18A to 18
When C is fixed to the outer surface of the corresponding lower floor building unit 10A, first, the tips of the waterproof sheets 29 and 30 temporarily fixed to the facing material 19 of each panel are temporarily fixed by peeling off the adhesive tape 36. The condition will be removed.

Upper floor exterior wall panels 19 whose temporary fixing status has been released
The waterproof sheet 29 attached to A to 19C has an area corresponding to the gap facing the gap 28 hanging above the surface of each of the lower floor exterior wall panels 18A to 18C, as shown by the two-dot chain line in FIG. . The lower end of the area corresponding to the gap of the suspended waterproof sheet 29 is pasted in advance to a double-sided adhesive tape 38 made of butyl rubber or the like that is pasted above the surface of the face material 19 of each of the lower floor exterior wall panels 18A to 18C. (See Figures 8, 1 and 11). As a result, the area corresponding to the gap of the waterproof sheet 29 is
This will cover the upper surface of C and close the gap 28.

On the other hand, each waterproof sheet 2 whose temporary fixing state has been released
9, a region corresponding to the joint portion facing the upper floor joint portion 27 is engaged with the male rail portion 33 and the female rail portion 35 at the tips thereof in a state where they abut against each other, as shown in FIG. To engage the male rail portion 33 and the female rail portion 35, the upper end of the protrusion 32 of the male rail portion 33 is fitted into the upper end of the groove 34 of the female rail portion 35, and the female rail portion 35 is fitted in advance. This is done by pulling down the slider 39 attached to the upper end of the frame in the direction of arrow B (see Fig. 1). That is, the slider 39 is
As shown in FIG. 5, each rail portion 33, 35 is held from the outside, and an external force is applied to both rail portions 33, 35 so that the protrusion 32 and groove 34 fit together in the direction of arrow C. It is something. The slider 39 is pulled down by a handle 4 attached to the surface of the slider 39.
This is done by pulling 0 in the direction of arrow B. As a result, the opposing protrusions 32 and grooves 34 shown in FIG.
are fitted sequentially from above and are locked together.

The areas corresponding to the joints of the waterproof sheet 29 attached to each of the adjacent upper floor external wall panels 19A to 19C are integrally connected and continuous by vertically engaging the protrusions 32 and grooves 34. As a result, the first upper floor exterior wall panel 19A and the second upper floor exterior wall panel 19B, the second upper floor exterior wall panel 19B and the third
Each upper floor joint portion 27 between the upper floor outer wall panels 19C is sealed by a sheet 29 that is integrally joined. It is preferable that the protrusions 32 and the grooves 34 be made of a slightly flexible synthetic resin, as this will ensure complete sealing. Further, the lower end of the area corresponding to the joint of the integrally combined waterproof sheet 29 is suspended above the surface of each lower floor exterior wall panel 18A to 18C, and the lower end along each upper floor joint 27 and the upper floor joint 27 The gap portion 28 between the lower floor joint portion 26 and the upper floor joint portion 26 is coated.

In addition, the waterproof sheet 30 attached to each of the lower floor exterior wall panels 18A to 18C is different from the waterproof sheet 2 on the upper floor side.
9 is waterproofed as described above, the male rail part 33 and the female rail part 35 are connected to each other in the same way as in the area corresponding to the joint part of the waterproof sheet 29 on the upper floor, so that they are integrally connected and continuous. (See Figure 1). As a result, each lower floor joint part 26 between the first lower floor exterior wall panel 18A and the second lower floor exterior wall panel 18B, and between the second lower floor exterior wall panel 18B and the third lower floor exterior wall panel 18C are also integrally connected to the sheet 30. It will be sealed.

The waterproof sheets 29 and 30 on the upper and lower floors that are integrally connected are stored between adjacent pillars 11 inside each joint 26 and 27 (see FIG. 7). Each of the waterproof sheets 29 and 30 is stored by pushing the joints of adjacent waterproof sheets 29 and 30 between the pillars 11 using a rod or the like.
At this time, use a rod whose tip is not sharp so that the tip of the rod does not damage each waterproof sheet 29 or 30.

As shown in FIG. 7, when each combined waterproof sheet 29 and 30 is stored between adjacent pillars 11, gaskets 41 are further inserted into each lower floor joint 26 and upper floor joint 27. Ru. (See Figure 4). The gasket 41 is made of a material such as rubber or flexible resin, and is elongated in the vertical direction corresponding to each of the joints 26 and 27. The gaskets 41 are inserted into the respective joints 26 and 27 and come into close contact with the side edges of the adjacent lower floor exterior wall panels 18A to 18C or each of the upper floor exterior wall panels 19A to 19C. , 27 are respectively closed by inserted gaskets 41 (see FIG. 9).

In addition, as shown in FIG. 7, a gap 28 that is closed by a region corresponding to the gap of the waterproof sheet 29 on the upper floor side
A fixture 42 and a decorative cover 43 are attached to the upper and lower peripheral areas in the directions of the arrows (see FIGS. 4 and 7). The decorative cover 43 is elongated in the direction of arrow A along the gap 28 and is made of synthetic resin-coated steel. makeup cover 4
3 is attached to the gap 28 in the gap 28.
8 covers the upper surface portion of each of the lower floor exterior wall panels 18A to 18B and the area around the gap of the lower surface portion of each of the upper floor exterior wall panels 19A to 19B, from which the waterproof sheet 29 is suspended.

The fitting 42 attaches the decorative cover 43 to the gap 2.
8, and a plurality of them are arranged at predetermined intervals in the direction of arrow A. Each fitting 42
is provided with a positioning piece 44 above the back surface, and a first mounting piece 45 and a second mounting piece 4 on the positioning piece 44 and the back surface below the positioning piece 44.
6. Each of the third mounting pieces 47 is provided. The fixture 42 attaches the positioning piece 44 to each upper floor exterior wall panel 19.
It is positioned so as to be in contact with the lower end of each of the upper floor exterior wall panels 19A to 19C, and in this state, the first mounting piece 45 is attached to the face material 20 of each upper floor exterior wall panel 19A to 19C using the mounting screw 48.
Also, the second mounting piece 46 and the third mounting piece 47 are respectively screwed to the facing material 20 of each of the lower floor exterior wall panels 18A to 18C using the mounting screws 48 (first
0 and 11). As a result, the fixture 4
2 are supported along the gap 28 at predetermined intervals. Note that the second mounting piece 46 is attached to the waterproof sheet 2.
It also has a function of fixing the lower end of the region corresponding to the gap 9 to the face material 20.

A decorative cover 43 is supported by the fixture 42 in a state that it is fitted onto the upper and lower ends of the fixture 42 (see FIGS. 10 and 11). A recess 49 is formed above the back surface of the decorative cover 43 supported by the fixture 42 . The recessed portion 49 is in close contact with a long sealing member 50 (the first
0 and 11), a sealing member 50 seals between the decorative cover 43 and the lower surface portion of each of the upper floor outer wall panels 19A to 19C. 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, each of the upper floor outer wall panels 19A to 1 adjacent in the horizontal direction (direction of arrow A) on the upper floor side
Of the waterproof sheets 29 attached to 9C, the areas corresponding to the joints of adjacent waterproof sheets 29 facing each upper floor joint 27 are connected to the protrusion 32 (engaging portion) of the male rail 33 and the female rail. Groove 34 of section 35
(an engaging part) can be coupled by mutually engaging them. As a result, the areas corresponding to the joints of the combined waterproof sheets 29 connect the first upper floor exterior wall panel 19A, the second upper floor exterior wall panel 19B, and the second upper floor exterior wall panel 19B.
Upper floor exterior wall panel 19B and third upper floor exterior wall panel 19
Each upper floor joint part 27 between C can be closed.

In addition, each of these upper floor external wall panels 19A to 19C
Each lower floor exterior wall panel 18 as a wall lower member
It covers the upper surface portions of A to 18C and closes the gap 28 extending in the direction of arrow A.

Also, among the waterproof sheets 30 attached to the respective lower floor exterior wall panels 18A to 18C adjacent to each other in the horizontal direction (direction of arrow A) on the lower floor side, each of the adjacent waterproof sheets facing each lower floor joint 26 The tips of the waterproof sheets 30 can be connected by being attached to each other in the same manner as the waterproof sheet 29 on the upper floor side. With the waterproof sheet 30 thus combined, the first lower floor exterior wall panel 18A and the second lower floor exterior wall panel 18B,
Each lower floor joint portion 26 between the second lower floor outer wall panel 18B and the third lower floor outer wall panel 18C can be closed.

Therefore, the upper floor joint portion 27, the lower floor joint portion 26, and the gap portion 2 can be easily sealed without requiring work such as filling with putty or applying caulking.
It becomes possible to reliably perform each of the waterproofing treatments listed in Item 8.

Note that the seal structure of the exterior wall panel according to the above embodiment is similar to that of each upper floor exterior wall panel 19 that is vertically installed.
The base end of the waterproof sheet 29 in the width direction is supported on the back side of the waterproof sheet 29, and the lower end of the area corresponding to the gap of the waterproof sheet 29 is connected to each of the lower floor external wall panels 18A to 18C.
It can be attached to the surface of the Therefore, the base end of the area corresponding to the gap of the waterproof sheet 29 becomes vertical on the back surface of the panel, and the water flows horizontally toward the indoor side from between the waterproof sheet 29 and the lower end of the upper floor exterior wall panels 19A to 19C. It can prevent rainwater from entering. Further, the lower end of the waterproof sheet 29 is connected to each of the lower floor external wall panels 18A to 18A as lower wall members.
18C and is further fixed to the panel 20 by the second attachment piece 46 of the fixture 42, so that the lower end of the waterproof sheet 29 does not roll up and can be attached to the lower floor of the sheet 29. Exterior wall panel 18
Rainwater is prevented from penetrating into the indoor side from between the surface materials 20 of A to 18C.

Further, in the above embodiment, the adjacent joint-corresponding areas of the upper floor exterior wall panels 19A to 19C are attached to each other, and the lower end portions of the attached and integrally connected sheets 29 are connected to the lower floor exterior wall panels 18A to 19C. 18C
Since it covers the upper part of the surface of You can improve your performance.

In addition, the upper and lower waterproof sheets 2 are integrally connected by engaging the male rail portion 33 and the female rail portion 35.
9 and 30 respectively correspond to the pillars 11 as shown in FIG.
The waterproof sheets 29, 30 are stored inside the
A gasket 41 is inserted into each joint portion 26, 27 in which a gasket is stored. For this reason, the upper floor joint 27
Each of the lower floor joints 26 and 26 can be doubly sealed by the combined waterproof sheet 29 or 30 and gasket 41, so that each joint 26,
27 waterproofing can be ensured.

Furthermore, the gap 28 and its upper and lower peripheral areas, which extend in the direction of arrow A and are closed by the suspended waterproof sheet 29, are covered by the decorative cover 43, and the upper end of the decorative cover 43 A seal member 50 seals between the upper floor outer wall panels 19A to 19C. As a result, rainwater spraying onto the outer wall of the building can be removed from the decorative cover 4.
3 seals the primary side, and the waterproof sheet 29 that closes the gap 28 seals the secondary side, making it possible to completely block rainwater from entering the indoor side. .

Note that the male rail portion 33 with the protrusion 32 and the female rail portion 35 with the concave groove 34 may be attached to the tips of the corresponding waterproof sheets 29 and 30; A protrusion or groove may be integrally formed at the tip of each region. 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 32 and the grooves 34, 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 can be attached.

Furthermore, in the above embodiment, the lower wall members are each of the lower floor outer wall panels 18A to 18C, but the lower wall members may be eaves, roof panels, window frame members, etc., for example.

[Effects of the Invention] As described above, the present invention can close the joints that occur between horizontally adjacent exterior wall panels that are disposed above the wall lower member, and also close the joints that occur between the lower ends of the exterior wall panels. In a sealing structure for an exterior wall panel that closes a gap formed between a wall lower member and a lower wall member, a joint is formed on the side edge facing the joint and the lower edge facing the gap of both adjacent exterior wall panels. A waterproof sheet with an engaging part extending along the facing side edge is attached, and the engaging parts of both waterproof sheets are engaged with each other to close the joint, and the lower ends of both waterproof sheets are attached to the wall. The waterproof sheets are suspended from the lower member, and the lower ends of both waterproof sheets cover the surface of the lower wall member. Therefore, it is possible to reliably close the joints between horizontally adjacent exterior wall panels and the gaps between the exterior wall panels and the wall bottom members with a simple operation, and improve the waterproofing properties of the joints and gaps. It becomes possible to achieve this goal.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a sealing structure of an exterior wall panel according to an embodiment of the present invention, FIG. 2 is a perspective view showing a part of a unit house using the sealing structure of an exterior wall panel shown in FIG. 1, and FIG. The figure is a view taken along the - line in Fig. 2, 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, and Fig. 6 is a sectional view taken along the - line in Fig. 1. A cross-sectional view along the - line in the figure,
Figure 7 is a perspective view showing the attached waterproof sheet stored between the pillars, Figure 8 is a sectional view taken along the - line in Figure 7, and Figure 9 is a perspective view of the upper and lower floor joints. A perspective view showing a state in which a gasket is inserted and a region corresponding to the gap is covered with a decorative cover, No. 10
The figure is a sectional view taken along the - line in FIG. 9, and FIG. 11 is a sectional view taken along the line XI--XI in FIG. 9. 18A to 18C...Lower floor external wall panel (lower wall member),
19A to 19C... Upper floor external wall panel, 26... Lower floor joint, 27... Upper floor joint, 28... Gap, 29, 30... Waterproof sheet, 32... Projection (engaging portion) , 34... Concave groove (engaging portion).

Claims (1)

[Scope of Claims] 1. Closing the joints that occur between horizontally adjacent exterior wall panels arranged above the wall bottom member, and closing the gap that occurs between the lower end of the exterior wall panel and the wall bottom member. In the sealing structure of an exterior wall panel that closes a portion, an engagement extending along a side edge facing the joint portion and a lower edge portion facing the gap portion of both adjacent exterior wall panels. Attach a waterproof sheet with a section, and connect the engaging portions of both waterproof sheets to each other to close the joint, and let the lower ends of both waterproof sheets hang down to the lower wall member to close both waterproof sheets. A sealing structure for an exterior wall panel characterized by covering the surface of a wall lower member with the lower end of a sheet. 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 Attach both waterproof sheets to the back side of the side edge facing the joint and the lower edge facing the gap of the outer wall panel, and attach the lower ends of both waterproof sheets covering the surface of the lower wall member. , Claims 1, 2, and 3 attached to the surface portion of the under-wall member.
Seal structure of an exterior wall panel according to item 1 or 4.