JP2008025182A - Waterproof structure between outer wall panels and waterproof construction method between outer wall panels - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof structure between outer wall panels capable of making both compatible in an improvement in waterproof reliability between the outer wall panels and an improvement in waterproof workability between the outer wall panels. <P>SOLUTION: This waterproof structure between the outer wall panels has a secondary waterproof member on the reverse surface side of a gasket 2, by installing the primary waterproof gasket 2 in a joint part clearance S formed between the adjacent outer wall panels 1 and 1 by pushing-in from the surface side of the outer wall panels 1 and 1. The secondary waterproof member is synthetic resin first drain board material 3 and second drain board material 4 respectively arranged along an end part of the adjacent outer wall panels 1 and 1. Both drain board materials 3 and 4 form a waterproof line by mutually superposing the mutual plate materials while having contact force. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a waterproof structure between outer wall panels applied to a residential building or the like and a waterproof construction method between outer wall panels.

As one of architectural forms such as a residential building, there is a case where the outer wall of a building is constituted by a plurality of outer wall panels arranged in a plane. In such an outer wall structure, in order to ensure the dimensional tolerance for the building body, it is usual to provide a joint gap between adjacent outer wall panels. Therefore, it is important to prevent rainwater from entering from the joint gap. It becomes.
In response to the above-mentioned problems, as a waterproofing between the outer wall panels, a primary waterproofing member is used as a gasket, and a caulking or foam (rubber, EPDM, etc.) is generally used for secondary waterproofing. It was inferior in waterproof reliability, and when caulking, it took time and was inferior in waterproof workability.

On the other hand, conventionally, as a waterproof structure between outer wall panels for preventing rainwater intrusion from a joint gap formed between adjacent outer wall panels, a gasket is used as a primary waterproof member, and a waterproof sheet as a secondary waterproof member. Is known (for example, see Patent Document 1).
Further, as a waterproof structure between outer wall panels, a structure using a gasket as a primary waterproof member and a thin draining material as a secondary waterproof member is known (for example, see Patent Document 2).
Japanese Patent No. 2507123 Japanese Patent No. 2779108

  However, in the waterproof structure between the outer wall panels described in the above-mentioned Patent Document 1, since it is configured to be joined by a fastener provided on the side edge portion of the waterproof sheet, a fine work for engaging the fastener is necessary. In addition, there is a problem that means for improving the waterproof reliability is required by covering the joint portion gap with another member.

  Further, in the waterproof structure between outer wall panels described in Patent Document 2, a pair of opposing draining materials are arranged with a gap between them, and the two end portions of the folded portion of the draining material are in line contact with the gasket. Since the secondary waterproof function is provided, there is a problem that the reliability of the secondary waterproof performance is not sufficient, such as a gap is formed when the pressure contact force is lost between the end surface of the folded portion and the gasket. there were.

  The present invention has been made paying attention to the above problems, and provides a waterproof structure between outer wall panels that can achieve both improvement in waterproof reliability between outer wall panels and improvement in waterproof workability between outer wall panels. The purpose is to do.

In order to achieve the above object, in the present invention, a gasket for primary waterproofing is attached to a joint gap formed between adjacent outer wall panels by pressing from the front surface side of the outer wall panel, In the waterproof structure between the outer wall panels provided with the secondary waterproofing member,
The secondary waterproofing member is a first draining plate material and a second draining plate material made of synthetic resin provided along the end portions of the adjacent outer wall panels, respectively, and both draining plate materials have contact force. However, the sheet material is overlapped with each other to form a waterproof line.

Therefore, in the waterproof structure between outer wall panels of the present invention, the gasket on the outer wall panel surface side has a primary waterproof function, and the first draining plate material and the second draining plate material made of synthetic resin on the gasket back side are secondary waterproof functions. Will have. And since both water draining plate materials for secondary prevention have a contact force, they are overlapped with each other to form a waterproof line, so even if the relative position of both water draining plate materials changes, the relative position depends on the amount of overlap. The change is absorbed, the polymerization state between the plate members is maintained as it is, and even if the draining plate member is deformed, the contact state at the overlapping portion follows the deformation of the plate member and the polymerization state between the plate members is maintained as it is. That is, even if there is a change in the relative position or deformation of the draining plate material that lowers the sealing performance, it is possible to maintain a high sealing performance that prevents water from entering.
In addition, when constructing a waterproof structure between outer wall panels, for example, when caulking is used for secondary waterproofing, it requires laborious caulking work, and when using a waterproof sheet with a fastener for secondary waterproofing, it is troublesome. Fastener joining work is required. On the other hand, since a pair of draining plate materials are employed as the secondary waterproofing member, for example, a pair of draining plate materials fixed to the end portions of the outer wall panel are pushed together into the joint portion gaps, so that they overlap each other with a contact force. The waterproof construction can be carried out in a short time and without any effort so that the two can be combined.
As a result, it is possible to achieve both the improvement of the waterproof reliability between the outer wall panels and the improvement of the waterproof workability between the outer wall panels.

  Hereinafter, the best mode for realizing a waterproof structure between outer wall panels of the present invention will be described based on Example 1 shown in the drawings.

First, the configuration will be described.
1 is an enlarged cross-sectional view of a main part showing a waterproof structure between outer wall panels of Example 1, FIG. 2 is a sectional view showing a waterproof structure between outer wall panels of Example 1, and FIG. 3 is a waterproof structure between outer wall panels of Example 1. It is a schematic perspective view which shows the application state to the vertical joint part clearance gap of a unit house.

  As shown in FIG. 3, the waterproof structure between outer wall panels in the first embodiment is employed in the vertical joint gap A between the unit of the end face or the girder face. Note that the vertical joint gap A employing the waterproof structure between the outer wall panels includes between the balcony handrail walls and between the roof unit small walls.

  As shown in FIG. 1, the waterproof structure between the outer wall panels in the first embodiment includes a gasket 2 for primary waterproofing in the joint gap S formed between the adjacent outer wall panels 1, 1. The gasket is attached by pressing from the front side, and a secondary waterproofing member is provided on the back side of the gasket 2.

  The secondary waterproofing member is a first draining plate member 3 and a second draining plate member 4 made of synthetic resin provided along the end portions of the adjacent outer wall panels 1, 1, and both draining plate members 3. , 4 form a waterproof line by overlapping the plate materials while having contact force. And the gasket 2 as the said primary waterproof member and the 1st draining board material 3 and the 2nd draining board material 4 as the said secondary waterproof member are upper ends along the joint part clearance gap S formed in the vertical direction of the unit house. It is installed from the bottom to the bottom.

  As shown in FIG. 2, the outer wall panel 1 includes a vertical frame 11, a structural surface material 12, a trunk edge 13, and an outer surface material 14. The outer surface material 14 is fixed to the vertical frame 11 and the structural surface material 12 by sandwiching the base material 15 between the structural surface material 12 and the outer surface material 14 and driving a nail 16 from the surface side of the outer surface material 14. Note that the surface of the outer surface material 14 is covered with a coating film 17 for making the appearance beautiful.

  As shown in FIG. 1, the gasket 2 is made of a highly elastic material, and has a decorative plate portion 2 a on the front surface side, a central base portion 2 b extending from the central portion of the decorative plate portion 2 a to the back surface side, First lip seal portions 2c, 2c and second lip seal portions 2d, 2d projecting from both sides of the base portion 2b, and connecting portions 2e, 2e for connecting both lip seal portions 2c, 2d and 2c, 2d are provided. .

The first draining plate member 3 and the second draining plate member 4 are creased resin waterproof plates, and in a fixed state to the end portion of the outer wall panel 1, as shown by phantom lines in FIG. 3 and the plate end portions 3a, 4a of the second draining plate material 4 are bonded to the upper surface of the prevention paper by bonding a waterproof paper (not shown) to the stepped surface at the corner position of the structural surface material 12, and the plate material Portions other than the end portions 3a and 4a protrude to the surface side of the outer wall panels 1 and 1.
Normally, a draining plate material is bonded to a steel plate having an L-shaped cross section in an equivalent to the outer surface material, and the draining plate material bonded to the steel plate is attached to the corner position of the structural surface material to form a waterproof / fireproof line. However, in the case of Example 1, only the waterproof line is formed by adhering and fixing the two draining plate materials 3 and 4 to the stepped surface at the corner position of the structural surface material 12 through the prevention paper. That is, the fire prevention line is set by another means.

As shown by the imaginary line in FIG. 1, the first folds 31 and 41 and the second folds 32 and 42 are formed on the protruding portions of the first draining plate 3 and the second draining plate 4 other than the plate ends 3a and 4a. The third fold lines 33 and 43, the fourth fold lines 34 and 44, and the fifth fold lines 35 and 45 are formed.
The first folds 31 and 41 project both the draining plate materials 3 and 4 to the surface side of the outer wall panels 1 and 1 in a state before being attached to the end portions of the outer wall panels 1 and 1, and projecting the plate materials. A fold angle θ1 that is substantially perpendicular to the plate end portions 3A and 4A is provided so as to generate a restoring elastic force by pushing the portion into the joint gap S.
The second fold lines 32 and 42 and the third fold lines 33 and 43 are pressed and polymerized by pressing from the state before being attached to the end portions of the outer wall panels 1 and 1, as indicated by the phantom and solid lines in FIG. Are attached at the entrance of the joint gap S so as to form protrusions having a triangular cross section that gives a resistance to pulling out the gasket 2.
The fourth folds 34 and 44 are overlapped with each other to form a waterproof line having a V-shaped cross section while holding the shape wrapping both the lip seal portions 2c and 2d of the gasket 2 as shown by the phantom and solid lines in FIG. The folding angle θ4 is attached to the position where
The fifth folds 35 and 45 are each provided with a fold angle θ5 at a position where the overlapping end portions of both draining plate members 3 and 4 are pressed toward the opposing surface of the joint gap S.

  FIG. 4 is a process diagram showing a waterproof construction method between outer wall panels of Example 1, and FIG. 5 is a perspective view showing a state in which vertical drainage is constructed between living room units of 1F (first floor) and 2F (second floor). is there. Hereinafter, the waterproof construction method between outer wall panels of Example 1 is demonstrated using FIG. 4 and FIG. In executing the waterproof construction method between the outer wall panels, for example, a rubber spatula for preventing the plate material from being damaged is used as a pushing tool for the draining plate materials 3 and 4.

(Plate material fixing process)
Adjacent outer wall panels 1, 1 F and 2 F are adjacent to each other while projecting the first drained plate material 3 with crease and the second drained plate material 4 with crease to the surface side of the outer wall panel 1, 1. It fixes along the edge part of 1 each (FIG. 4 (a)).
Here, the both vertical draining plates 3 and 4 are stuck by rolling with a roller while removing the bonded paper from the bonded portion.

(pre-process)
A laterally lower wall seat 5 and a longitudinally lower wall joint 6 are attached between the wife outer wall units. Then, the left and right lower wall sheet joints 6 are pulled out from between the units to the outer wall surface, and both adhesive surfaces are bonded together on one outer wall surface, the bonded sheet is wound from the end, and the rolled sheet is drained from both sides. It is inserted into the back side of the plate materials 3 and 4, and is fixed by crimping to the outer wall surface. That is, it is set so that the vertical drainage plate materials 3 and 4 are wrapped on the lower wall seat joint 6 by 200 mm or more and the gasket 2 is wrapped thereon.

(1F part first draining plate material pushing step)
The board | plate material protrusion part which protrudes in the surface side of the outer wall panels 1 and 1 of the 1st draining board | plate material 3 in 1F part is pushed in to the said joint part clearance gap S (FIG.4 (b)).

(1F part second draining plate material pushing process)
The board | substrate protrusion part which protrudes in the surface side of the outer wall panels 1 and 1 of the 2nd draining board | plate material 4 in 1F part is pushed in to the said joint part clearance gap S (FIG.4 (c)). In this case, as shown in part B, it is confirmed that the white lines formed by the fourth fold lines 34 and 44 overlap.

(Medium process)
Attach the 2F wall lower sheet (Shitaya draining) joint.

(1F draining plate material pushing process of 2F part)
The board | substrate protrusion part which protrudes in the surface side of the outer wall panels 1 and 1 of the 1st draining board | plate material 3 in 2F part is pushed in to the said joint part clearance gap S (FIG.4 (b)).

(2F part 2nd drain board pushing process)
The board | substrate protrusion part which protrudes in the surface side of the outer wall panels 1 and 1 of the 2nd draining board | plate material 4 in 2F part is pushed in to the said joint part clearance gap S (FIG.4 (c)). In this case, as shown in part B, it is confirmed that the white lines formed by the fourth fold lines 34 and 44 overlap.

(Gasket push-in process)
The gasket 2 is pushed in from the surface side of the outer wall panels 1 and 1 along the waterproof line formed by overlapping the plates with each other while having contact force by the first draining plate 3 and the second draining plate 4 (FIG. 4). (d)). When the gasket 2 is pushed in, a force is applied to the decorative plate portion 2A of the gasket 2 until it hits the outer wall surface (FIG. 4 (e)).
In addition, what is shown with the code | symbol 7 in FIG. 5 is the glass wool by the heat insulating material which fills the joint part space | interval S of the back | inner side of the waterproof structure between outer wall panels of Example 1, and uses both an airtight material and a fireproof material.

Next, the operation will be described.
In the case of unit housing, etc., the primary waterproofing member is used as a gasket and caulking or foaming for secondary waterproofing as a waterproofing between the outer wall panels, in order to prevent rainwater from entering through the joints between adjacent outer wall panels. Those using body (rubber, EPDM, etc.) are generally used, but in this case, long-term waterproof reliability is inferior, and when caulking, troublesome and inferior waterproof workability It was a thing.

  Furthermore, although the primary waterproof member is a gasket and the secondary waterproof member is a waterproof sheet material (see cited reference 1) and the thin plate draining material (see cited reference 2) have been proposed as prior arts. In addition, the use of the secondary waterproof member as the waterproof sheet material has left the problem of being inferior in long-term waterproof reliability and waterproof workability, and the secondary waterproof member is a thin plate-like draining material. The thing left the problem that it was inferior to waterproof construction property.

On the other hand, in the waterproof structure between the outer wall panels of Example 1, it is possible to achieve both the improvement of the waterproof reliability between the outer wall panels 1 and 1 and the improvement of the waterproof workability between the outer wall panels 1 and 1. I made it.
In other words, if a draining board material is selected as the secondary waterproofing member and the secondary prevention performance, which is a drawback of the draining board material, can be improved while taking advantage of the excellent waterproof workability that is an advantage of the draining board material, waterproof reliability can be improved. Focusing on the point that both improvement in waterproofing and improvement in waterproof workability can be achieved, the first draining plate material 3 and the second draining plate material 4 made of synthetic resin are selected and contacted as the secondary waterproofing member. A construction was adopted in which both draining plate members 3 and 4 are overlapped with each other while forming a waterproof line.

Therefore, since the two draining plate materials 3 and 4 for secondary prevention have a contact force and the plate materials are overlapped with each other to form a waterproof line, the relative positions of the two draining plate materials 3 and 4 due to variations and long-term use. Even if it changes, the relative position change is absorbed by the overlap amount, and the polymerization state between the plate materials is maintained as it is, and even if the draining plate materials 3 and 4 are deformed due to a temperature change or the like, the contact force at the polymerization portion Following the deformation of the plate material, the polymerization state between the plate materials is maintained as it is.
That is, even if there is a relative position change or deformation of the draining plate materials 3 and 4 that deteriorates the sealing performance, it is possible to maintain a high sealing performance that prevents water from entering.
In addition, when constructing a waterproof structure between outer wall panels, for example, when caulking is used for secondary waterproofing, it requires laborious caulking work, and when using a waterproof sheet with a fastener for secondary waterproofing, it is troublesome. Fastener joining work is required.
On the other hand, since the pair of draining plate materials 3 and 4 is employed as the secondary waterproof member, the contact force can be obtained simply by pushing the pair of draining plate materials 3 and 4 into the joint gap S as described in the construction method. The waterproof construction can be carried out in a short time and without the need for labor so that they can be overlapped with each other.

Next, in Example 1, although the draining board materials 3 and 4 with a crease | fold were employ | adopted, the function which each crease has is demonstrated.
The first fold lines 31 and 41 are provided with a fold angle θ1 that is substantially perpendicular to the plate end portions 3a and 4a.
With the first folds 31 and 41, as shown by phantom lines in FIG. 1, both the draining plate members 3 and 4 are attached to the outer wall panels 1 and 1 in a state before being attached to the end portions of the outer wall panels 1 and 1. It is possible to project the plate material projecting portion into the joint gap S, thereby generating a restoring elastic force.
In the case of the first draining member 3, the direction of the generation of the restoring elastic force is such that the portion of the fifth fold 35 and the portion ahead of the fifth fold 35 are opposed to the joint gap S as shown by an arrow C in FIG. The pressure is pressed against the surface, improving the sealing performance between the pressure surfaces. In the case of the second draining member 4, the portion from the fourth fold 44 to the fifth fold 45 extends from the third fold 33 to the fourth fold 34 of the first draining member 3 as shown by an arrow D in FIG. 1. The pressure is pressed against the surface, improving the sealing performance between the pressure surfaces.

The second folds 32 and 42 have an obtuse fold angle θ3 on the opposite side of the fold angle θ1, and the third folds 33 and 43 have an obtuse fold angle θ4 on the same side as the fold angle θ1.
By the second fold lines 32, 42 and the third fold lines 33, 43, as shown by the imaginary lines and the solid lines in FIG. When the mounting state is set to, a protrusion having a triangular cross-section can be formed.
By forming the protrusion having a triangular cross section, when the gasket 2 is pushed in, there is some resistance, but this resistance pushes the operator and gives a feeling of moderation, and both lip seal portions 2c, 2d Push to guide. On the other hand, after the gasket 2 is pushed in, as shown in FIG. 2, at the entrance portion of the joint gap S, a resistance is given to the gasket 2 so that the gasket 2 does not pop out.

The fourth folds 34 and 44 are provided with a fold angle θ4 of an obtuse angle on the same side as the fold angle θ1. With the fourth folds 34 and 44, as shown by the imaginary line and the solid line in FIG. 1, a waterproof line having a V-shaped cross section is formed by overlapping the lip seal portions 2c and 2d of the gasket 2 while maintaining a shape that wraps. Define the location.
Thus, by defining the position where the waterproof line having the V-shaped cross section is defined, when the gasket 2 is pushed in, the fourth fold lines 34 and 44 are caused by the restoring deformation force applied from both the lip seal portions 2c and 2d of the gasket 2. The shape of the two draining plates 3 and 4 sandwiching the swells as a whole swells and deforms from a V shape to a U shape. That is, as shown in FIG. 2, the two draining plate materials 3, 4 cause the two lip seal portions 2 c, 2 d of the gasket 2 to be brought into contact with each other by the pressure contact force applied to the two draining plate materials 3, 4 from the inside by the lip seal portions 2 c, 2 d. A high sealing performance can be ensured by the contact force generated by deforming into a wrapping shape.

  The fifth folds 35 and 45 are provided with an obtuse fold angle θ5 on the same side as the fold angle θ1. By the fifth fold 35, a pressure contact surface with respect to the opposing surface of the joint gap S is secured, and the sealing performance is improved. Further, the fifth fold 45 secures a pressure contact surface with respect to the surfaces of the first draining member 3 from the third fold 33 to the fourth fold 34, thereby improving the sealing performance.

Next, the effect will be described.
In the waterproof structure between outer wall panels and the waterproof construction method between outer wall panels of Example 1, the effects listed below can be obtained.

  (1) A gasket 2 for primary waterproofing is attached to a joint gap S formed between adjacent outer wall panels 1 and 1 by pressing from the front surface side of the outer wall panels 1 and 1, and the back surface side of the gasket 2 In the waterproof structure between the outer wall panels provided with the secondary waterproofing member, the secondary waterproofing member is a first drainage plate made of synthetic resin provided along the end portion of the adjacent outer wall panel 1, 1 respectively. 3 and the second draining plate material 4, and both the draining plate materials 3 and 4 are formed with waterproof lines by overlapping the plate materials with each other while having a contact force, so that the waterproof reliability between the outer wall panels 1 and 1 is improved. The improvement of waterproof construction between the outer wall panels 1 and 1 can be achieved at the same time.

  (2) The first draining plate member 3 and the second draining plate member 4 are fixed to the end portions of the outer wall panels 1 and 1, and are attached to the surfaces of the outer wall panels 1 and 1. Since the first folds 31 and 41 that cause the restoring elastic force to be generated by pushing the protruding portion of the plate material into the joint gap S are provided with a simple configuration without adding a new elastic member. In order to enhance the secondary waterproof function, the first draining plate member 3 and the second draining plate member 4 can be given elastic force by shape restoration.

  (3) The first draining plate material 3 and the second draining plate material 4 are formed by pressure welding polymerization, and form a projection having a triangular cross-section that gives resistance to the gasket 2 at the entrance portion of the joint gap S. Since the second folds 32 and 42 and the third folds 33 and 43 are provided, it is possible to reliably prevent the gasket 2 from popping out while giving an appropriate pressing moderation feeling when the gasket 2 is pressed.

  (4) The gasket 2 includes a front side decorative plate portion 2a, a central base portion 2b extending from the central portion of the decorative plate portion 2a to the back side, and a first lip protruding from both sides of the central base portion 2b. The first draining plate material 3 and the second draining plate material 4 have a shape that encloses both the lip seal portions 2c and 2d of the gasket 2. The seal portion 2c and 2c and the second lip seal portion 2d and 2d are provided. However, since it has fourth folds 34 and 44 that form a waterproof line having a V-shaped cross section overlapping each other, between the lip seal portions 2c and 2d of the gasket 2 and the first draining plate material 3 and the second draining plate material 4 A high waterproof seal function can be achieved by the cooperative waterproof action of the primary waterproof and the secondary waterproof.

  (5) The first draining plate member 3 and the second draining plate member 4 have fifth folds 35 and 45 that respectively press the overlapping end portions of the two draining plate members 3 and 4 toward the opposing surface of the joint gap S. The sealing performance can be improved by securing a press contact surface that prevents water leakage at the end positions of the two draining plate members 3 and 4.

  (6) The gasket 2 as the primary waterproof member and the first draining plate member 3 and the second draining plate member 4 as the secondary waterproof member are at the upper end along the joint portion gap S formed in the vertical direction of the house. Because it is mounted from the bottom to the bottom, both draining plate materials 3 and 4 are stacked side by side in parallel and a vertical waterproof line is formed, so that the outer wall panel has higher weather resistance than the case where the draining plate materials are stacked vertically. A waterproof structure can be provided.

  (7) A synthetic resin creased first draining plate member 3 and a creased second draining plate member 4 are projected along the end portions of the adjacent outer wall panels 1, 1 while projecting to the surface side of the outer wall panels 1, 1. A plate material fixing step of fixing, a first water drain plate material pushing step of pushing a plate material protruding portion protruding to the surface side of the outer wall panel 1, 1 of the first drained plate material 3 into the joint gap S, and the second water drain plate material 4 has a contact force due to the second draining plate material pushing step of pushing the protruding portion of the plate material projecting to the surface side of the outer wall panels 1 and 1 into the joint gap S, the first draining plate material 3 and the second draining plate material 4. And a gasket pushing process for pushing the gasket 2 from the surface side of the outer wall panel 1, 1 along a waterproof line formed by stacking the plate members on each other. On the other hand, if the first draining plate material 3 and the second draining plate material 4 are fixed in advance, the pushing operation of the three steps of pushing the first draining plate material 3, pushing the second draining plate material 4, and pushing the gasket 2 is performed. Thus, the waterproof construction between the outer wall panels 1 and 1 can be achieved in a short time without labor.

  As mentioned above, although the waterproof structure between outer wall panels and the waterproof construction method between outer wall panels of this invention were demonstrated based on Example 1, it is not restricted to this Example 1 about a concrete structure, Claims Modifications and additions of the design are permitted without departing from the spirit of the invention according to the claims.

  In Example 1, although the 1st crease | folds 31 and 41 were attached to the 1st draining board material 3 and the 2nd draining board material 4, and the contact force was given to both the draining board materials 3 and 4 when it piled up by pushing, it showed. For example, you may give contact force to both draining board | plate materials by adding the provision member of contact force. In short, the first draining plate material and the second draining plate material made of synthetic resin are limited to the configuration of the first embodiment as long as they form a waterproof line by overlapping the plate materials while having contact force. Absent.

  In Example 1, although the example which attaches the 1st fold 31,41-5th fold 35,45 to the 1st draining board material 3 and the 2nd draining board material 4 was shown, it replaced with each fold and the draining board material before pushing in was shown. It is good also as a shape which connects a shape smoothly with a curve.

  In Example 1, the example of the waterproof structure between outer wall panels applied to the vertical joint part clearance of a house was shown, However, The waterproof structure between outer wall panels of this invention is applicable also to a horizontal joint, a diagonal joint, etc.

1 is an enlarged cross-sectional view of a main part showing a waterproof structure between outer wall panels of Example 1. FIG. It is sectional drawing which shows the waterproof structure between outer wall panels of Example 1. FIG. It is a schematic perspective view which shows the application state of the waterproof structure between outer wall panels of Example 1 to the vertical joint part clearance gap of a unit house. It is each process figure which shows the waterproof construction method between the outer wall panels of Example 1. FIG. It is a perspective view which shows the state which constructs a vertical drainer between the living room units of 1F (1st floor) and 2F (2nd floor).

Explanation of symbols

A Vertical joint gap S Joint gap 1 Outer wall panel 2 Gasket
2a decorative panel
2b Central base
2c 1st lip seal
2d Second lip seal
2e Connecting part 3 First draining board
3a Edge of plate
31 First crease
32 Second fold
33 3rd fold
34 4th fold
35 5th crease 4 2nd draining board
4a Plate edge
41 First fold
42 2nd crease
43 3rd fold
44 4th fold
45 Fifth crease

Claims (7)

A gasket for primary waterproofing is attached to a joint gap formed between adjacent outer wall panels by pressing from the front side of the outer wall panel, and between the outer wall panels provided with a secondary waterproofing member on the back side of the gasket. In waterproof structure,
The secondary waterproofing member is a first draining plate material and a second draining plate material made of synthetic resin provided along the end portions of the adjacent outer wall panels, respectively, and both draining plate materials have contact force. A waterproof structure between outer wall panels, wherein the waterproofing lines are formed by overlapping the plate materials with each other. In the waterproof structure between outer wall panels described in claim 1,
The first draining plate material and the second draining plate material are in a state before being attached to the end portion of the outer wall panel, and both the draining plate materials are projected to the surface side of the outer wall panel, and the protruding portion of the plate material is formed in the joint gap. A waterproof structure between outer wall panels, which has a first crease that generates a restoring elastic force by being pushed into the wall. In the waterproof structure between outer wall panels described in claim 2,
The first draining plate material and the second draining plate material have a second fold and a third fold that form a protrusion that gives a pulling resistance to the gasket at an entrance portion of the joint gap in an attached state by pressure welding polymerization. Waterproof structure between outer wall panels characterized by. In the waterproof structure between outer wall panels according to claim 2 or claim 3,
The gasket includes a front decorative plate portion, a central base portion extending from the central portion of the decorative plate portion to the back surface side, and a first lip seal portion and a second lip seal portion protruding from both sides of the central base portion, respectively. And having
The first draining plate member and the second draining plate member have a fourth fold that overlaps each other and forms a waterproof line having a V-shaped cross section while maintaining a shape that encloses both lip seal portions of the gasket. Waterproof structure. In the waterproof structure between outer wall panels as described in any one of Claims 2 thru | or 4,
The first draining plate member and the second draining plate member have fifth folds that respectively press the overlapping end portions of both draining plate members forming a waterproof line having a V-shaped cross section toward the opposing surface of the joint gap. Waterproof structure between outer wall panels. In the waterproof structure between outer wall panels described in any one of claims 1 to 5,
The gasket as the primary waterproof member and the first draining plate member and the second draining plate member as the secondary waterproof member are mounted from the upper end to the lower end along the joint gap formed in the vertical direction of the house. Waterproof structure between outer wall panels characterized by that. A plate material fixing step of fixing the first drained plate material with a crease made of a synthetic resin and the second drained plate material with a crease along the end portion of the adjacent outer wall panel while projecting to the surface side of the outer wall panel;
A first water draining plate material pushing step of pushing a plate material protruding portion protruding to the surface side of the outer wall panel of the first water draining plate material into the joint gap,
A second draining plate material pushing step of pushing the plate material protruding portion protruding to the surface side of the outer wall panel of the second draining plate material into the joint gap,
A gasket pushing step of pushing a gasket from the surface side of the outer wall panel along a waterproof line having a V-shaped cross section formed by overlapping the plates with each other while having contact force by the first draining plate material and the second draining plate material; ,
A waterproof construction method between outer wall panels, characterized by comprising:

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