JP2011208393A - Secondary waterproof member for exterior wall joint, waterproof structure of the exterior wall joint, and method for constructing the waterproof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a secondary waterproof member 1 for an exterior wall joint, which can be inserted into the back of the exterior wall joint from an outdoor side, and the position of which can be easily corrected after press fitting.SOLUTION: The secondary waterproof member 1 for the exterior wall joint is housed on the indoor side of the exterior wall joint, so as to inhibit water from intruding into the indoor side from the exterior wall joint. The secondary waterproof member 1 includes a flat plate member 11 which is formed in a long flat plate shape and which has one or more groove portions 13 provided along a longitudinal direction on one side thereof, and a pair of long elastic fin members 12 which each have one end of a long side thereof connected along both the sides of the flat plate member 11 and which each have a bent portion 14 bent to a surface side provided with a groove portion 13 of the flat plate member 11.

Description

  The present invention relates to a secondary waterproof member for an outer wall joint that inhibits water from entering the indoor side from the outer wall joint, a waterproof structure for the outer wall joint using the secondary waterproof member for the outer wall joint, and a waterproof structure for the outer wall joint. It relates to the construction method.

  Conventionally, dry outer wall joint gaskets have been used to prevent intrusion of wind and rain from the outer wall joints formed between a plurality of adjacent outer wall panels into the building and to maintain a good appearance of the building. This outer wall joint gasket is formed of a material having watertightness and elasticity such as polyvinyl chloride, and has a longitudinal shape slightly wider than the width of the outer wall joint, and is inserted and fixed to the outer wall joint from the outdoor side. It is.

  In such an outer wall joint gasket, in order to further improve waterproofness, for example, as shown in FIGS. 10, 11 (A) and 11 (B), a hat-shaped joiner including a small protrusion 111 and a small protrusion 112. There has been proposed an outer wall jointer 100 including 110 and a joint gasket 120 including a column piece 122 having a small groove 123 fitted to the small protrusion 112 and a cover piece 121 (see Patent Document 1). The small protrusion 112 and the small groove 123 are formed so as to be fitted to each other, and the small groove 123 is filled with an adhesive material 124 as shown in FIG. As shown in FIG. 10, the hat-shaped joiner 110 is previously interposed between the signing board 150 and the trunk edge 140, and the joint gasket 120 is inserted from the outdoor side of the outer wall joint. The outer wall joint is waterproofed by the ribs 125 projecting on both sides of the joint gasket 120 inserted into the outer wall joint, and the small groove 123 is further pushed in to fit with the small protrusion 112 of the hat-shaped joiner 110, and the small groove 123. The adhesive material 124 filled in the flow-out flows out and fills the periphery, so that the adhesive material 130 shown in FIG. 10 is obtained.

  With this configuration, the outer wall joint gasket in Patent Document 1 has a small protrusion 111 of the hat-shaped joiner 110 in addition to the primary waterproofing due to the waterproofness of the joint gasket 120, as shown in FIG. Secondary waterproofing can be performed by abutting and contacting the back surface, and the waterproofing effect can be further enhanced.

No. 07-43333

  However, in the outer wall joint gasket as described above, since the width of the hat-shaped joiner 110 is wider than the joint width of the outer wall joint, it is difficult to insert the hat-shaped joiner 110 from the outdoor side to the indoor side of the outer wall joint. In addition, it is necessary to attach the hat-shaped joiner 110 before attaching the signing board 150 to the trunk edge 140 or simultaneously with the attachment of the trunk edge 140.

  Further, since the hat-shaped joiner 110 is in contact with and in close contact with the back surface of the signing board 150, it is difficult to correct the position after the mounting work if the horizontal position shift occurs during the mounting, and the workability is also improved. There was a problem.

  In view of the above-mentioned problems, the present invention can be easily inserted from the outdoor side to the indoor side of the outer wall joint, and can easily correct the horizontal misalignment even after the insertion, and has higher waterproof performance. It aims at providing the waterproof structure of the outer wall joint which uses the secondary waterproof member of the outer wall joint which has, the secondary waterproof member of this outer wall joint, and its construction method.

  The secondary waterproof member of the outer wall joint according to claim 1 is a secondary waterproof member of the outer wall joint that is housed on the indoor side of the outer wall joint and prevents water from entering the indoor side from the outer wall joint, It is a long flat plate-shaped member, and a flat plate member having one or more grooves provided along the longitudinal direction on one side thereof, and a pair of elastic long members, one end of the long side of which is the flat plate And a fin member that is connected along both sides of the member and has a bent portion that bends to the surface side where the groove portion of the flat plate member is provided.

  The waterproof structure of the outer wall joint according to claim 2 is made of an elastic material formed to be slightly wider than the outer wall joint, and includes a primary waterproof member inserted and held in the outer wall joint, and the primary waterproof member. A waterproof structure of an outer wall joint comprising a secondary waterproofing member installed on the indoor side, wherein the secondary waterproofing member is a long flat plate-like member provided along the longitudinal direction on the outdoor side surface thereof A flat plate member having one or more grooves, and a pair of elastic and long members, one end of which is connected along both sides of the flat plate member, and the surface of the flat plate member provided with the groove A fin member having a bent portion that bends to the side, and the flat plate member abuts against a backup material housed between the outer wall panel and the shaft assembly constituting the structural frame of the building, and the fin member The edges of two adjacent outer wall panels It is characterized in that pressed against the inside surface.

  The waterproof structure of the outer wall joint according to claim 3 is characterized in that the backup material is an outer wall panel mounting bracket for attaching the outer wall panel to a structural frame of a building.

  A waterproof structure construction method for an outer wall joint according to claim 4 is a long and flat plate-shaped member, and a flat plate member having one or more grooves along the longitudinal direction on one side thereof, and a long and elastic member. And a fin member having one end of the long side of the pair of members connected along both sides of the flat plate member and having a bent portion that bends to the surface side where the groove portion of the flat plate member is provided. The waterproof member is inserted into the outer wall joint with the surface provided with the groove portion of the flat plate member facing the outdoor side, and the tip portion of the misalignment correction tool is hooked on the groove portion provided on the flat plate member. By moving the secondary waterproof member in the horizontal direction, the horizontal displacement of the secondary waterproof member is corrected, and then the primary waterproof member made of an elastic material formed slightly wider than the outer wall joint is installed. Inserted into the outer wall joint from the outside and its elasticity Is characterized in that waterproofing is sandwiched within the outer wall joint by.

  According to the secondary waterproofing member for the outer wall joint according to claim 1, since the fin member has elasticity, when inserted into the joint, the fin member is further bent in the already bent direction, and the outer wall from the outdoor side. It can be easily inserted in the indoor side of the joint. Moreover, a fin member press-contacts to the edge part inner surface of two adjacent outer wall panels, and has high secondary waterproof performance. Further, even after the insertion, since the groove portion is formed in the flat plate member, the position shift in the horizontal direction can be easily corrected by hooking the tip end portion of the position shift correction tool into the groove portion.

  According to the waterproof structure of the outer wall joint according to claim 2, since the fin member has elasticity in the secondary waterproof member, when inserted into the joint, the fin member is further bent in the already bent direction, It can be easily inserted from the outdoor side to the indoor side of the outer wall joint. In addition, since the groove portion is formed in the flat plate member even after the insertion, it is possible to easily correct the horizontal displacement of the secondary waterproof member by hooking the tip portion of the misalignment correction tool to the groove portion. it can. Furthermore, since the movement of the secondary waterproofing member to the indoor side is restricted by the flat plate member coming into contact with the backup material housed between the outer wall panel and the shaft assembly constituting the structural frame of the building, the fin member is In a state of being elastically deformed, it is pressed against the inner surface of the end portion of the outer wall panel with a high pressure. As a result, the inner surface of the end portion of the outer wall panel and the fin member are in close contact with each other, and a high waterproof effect can be obtained without passing water.

  According to the waterproof structure of the outer wall joint according to claim 3, since the outer wall panel mounting bracket for attaching the outer wall panel to the structural frame of the building is used as a backup material, it is economical that there is no need to prepare a separate backup material, There is an advantage that labor can be saved. Further, in the past, the secondary waterproofing member has joined the narrow housing space on the indoor side surface of the outer wall panel mounting bracket and the outer wall panel, but by utilizing the narrowness of the housing space, the fin member is elastically deformed. A high pressure contact pressure can be secured and an excellent waterproof effect can be obtained.

  According to the waterproof structure construction method for the outer wall joint according to claim 4, the secondary waterproof member is inserted with the surface of the secondary waterproof member on which the groove portion of the flat plate member is provided on the outdoor side, and after the insertion, from the outdoor side By operating the tip of the misalignment correcting tool by hooking it to the groove provided in the flat plate member, the misalignment in the horizontal direction of the secondary waterproof member can be corrected, and workability is improved.

The horizontal sectional view of the outer wall joint explaining the whole structure of the waterproof structure of an outer wall joint. The partial omission perspective view of the secondary waterproofing member of an outer wall joint. Sectional drawing explaining the cross-sectional shape of the secondary waterproofing member of an outer wall joint. The partial omission perspective view of the primary waterproofing member of an outer wall joint. FIG. 5 is a partially omitted cross-sectional view illustrating a process of inserting a secondary waterproof member into an outer wall joint. A partially omitted cross-sectional view illustrating a state in which a secondary waterproof member is inserted into an outer wall joint. The partially abbreviate | omitted sectional drawing explaining the process of correcting the position of the fin member in a secondary waterproof member. The partially abbreviate | omitted sectional drawing explaining the state which corrected the position of the fin member in a secondary waterproofing member. FIG. 6 is a partially omitted cross-sectional view for explaining a process of correcting the horizontal position of the secondary waterproof member using a position shift correction tool. The figure which shows an example of the outer wall joint gasket used for the waterproofing of the conventional outer wall joint. The figure which shows the hat-type joiner and joint gasket of the outer wall joint gasket shown in FIG. FIG. 5 is a partially omitted cross-sectional view illustrating a process of fixing the outer wall panel to the shaft assembly using the outer wall panel mounting bracket.

  Hereinafter, the best embodiment of the secondary waterproof member 1 of an outer wall joint, the waterproof structure of an outer wall joint, and the waterproof structure construction method of an outer wall joint is described, referring to each figure. The outer wall used in the outer wall joint secondary waterproof member 1 and the outer wall joint waterproof structure using the secondary waterproof member 1 is fixed to the shaft assembly 4 by using the outer wall panel mounting bracket 5. It is formed. Here, the shaft group 4 constitutes a structural frame of a building.

  Next, the secondary waterproof member 1 of the outer wall joint of the present embodiment will be described. As shown in FIGS. 2 and 3, the secondary waterproofing member 1 of the present embodiment is a long flat plate-like member, and a flat plate having one or more groove portions 13 provided along the longitudinal direction on one side thereof. The member 11 and a pair of elastic and long members, one end of which is connected along both sides of the flat plate member 11, and on the surface side of the flat plate member 11 where the groove 13 is provided. And a fin member 12 having a bent portion 14 to be bent. In the present embodiment, as shown in FIG. 3, the left and right fin members 12 are connected to the flat plate member 11 so as to be inclined toward the surface on which the groove portion 13 is provided. With this configuration, even the fin member 12 having a small width can be pressed against the inner side surface 32 of the end portion of the outer wall panel 3 shown in FIG. Further, if the direction from the surface where the groove portion 13 of the flat plate member 11 is not provided is directed upward, as shown in FIG. 3, the flat plate member 11 of the left and right fin members 12 is connected. The edge 15 which is the other end of the long side which is not located is located above the joint portion between the flat plate member 11 and the fin member 12. Further, the width between the left and right fin members 12 is the maximum width W1 at the position of the bent portion 14. The maximum width W1 is preferably larger than the width of the flat plate member 11, and is slightly larger than the joint width W2 of the outer wall joint (see FIGS. 3 and 5). When the secondary waterproof member 1 is inserted from the outer wall joint and the bent portion 14 passes through the outer wall joint, the secondary waterproof member 1 can be inserted while pressing the side wall in the outer wall joint while maintaining the position of the secondary waterproof member 1. It is. 2 and 3, five grooves 13 are provided. However, the present invention is not limited to this, and the number of grooves 13 may be any number as long as it is one or more.

  Here, each optimal shape and material of the secondary waterproofing member 1 will be illustrated. When the joint width W2 of the outer wall joint is about 11 mm, the width of the flat plate member 11 is preferably about 7 mm so that it can be easily inserted here. Further, the outer wall panel mounting bracket 5 is provided at a predetermined mounting interval in the vertical direction on the indoor side of the outer wall joint. Usually, the number of the outer wall panels 3 is about four. And when this outer wall panel mounting bracket 5 is used as a backup material for the secondary waterproof member 1, the secondary waterproof member 1 pushed from the outdoor side of the outer wall joint does not move indoors with this outer wall panel mounting bracket 5. Will be regulated. Accordingly, the flat plate member 11 whose back surface abuts against the outer wall panel mounting bracket 5 is deformed like a bow in a place where the outer wall panel mounting bracket 5 does not exist and does not move to the indoor side. It is preferable to be formed of the above material or a hard material having a high elastic modulus. Further, since the maximum width W1 between the left and right fin members 12 in the bent portion 14 is preferably slightly larger than the joint width W2 of the outer wall joint as described above, if the joint width W2 is 11 mm, about 15 mm is suitable. (See FIGS. 3 and 5). Further, when the surface of the flat plate member 11 on which the groove portion 13 is not provided is used as the reference surface, the height H1 of the edge 15 with respect to the reference surface is equal to the end inner side surface 32 of the outer wall panel 3 and the back-up material. It is preferable to be longer than the distance H2 (hereinafter referred to as “storage space distance”) from the outer surface, that is, in this embodiment, the outdoor side surface of the operation portion 53 of the outer wall panel mounting bracket 5 (see FIGS. 3 and 5). ). This is because the pressure contact with the inner surface 32 of the end portion of the outer wall panel 3 becomes larger when the height H1 of the edge portion 15 is longer than the storage space distance H2. For example, if the storage space distance H2 is about 4 mm, the height H1 of the edge 15 is preferably about 5.8 mm.

  Next, the waterproof structure of the outer wall joint of this embodiment will be described. As shown in FIG. 1, the waterproof structure of the outer wall joint of the present embodiment is installed on the indoor side of the primary waterproof member 2 accommodated in the outer wall joint between the adjacent outer wall panels 3 and the primary waterproof member 2. The secondary waterproofing member 1 is provided. The secondary waterproofing member 1 is inserted into the outer wall joint from the outdoor side and is accommodated at a position where it abuts on the operation portion 53 of the outer wall panel mounting bracket 5 as shown in FIG. Further, as shown in FIG. 1, the primary waterproof member 2 is accommodated in the outer wall joint on the outdoor side from the secondary waterproof member 1. The secondary waterproof member 1 is accommodated with the surface of the flat plate member 11 on which the groove 13 is provided facing the outdoor side. Therefore, the surface of the flat plate member 11 where the groove 13 is not provided comes into contact with the operation portion 53. Thereby, the movement of the secondary waterproofing member 1 to the indoor side is restricted, and the fin member 12 is elastically deformed by conversely using the narrowness of the accommodated space, so that the edge 15 of the fin member 12 can be obtained with high pressure. Can adhere closely to the inner side surface 32 of the end portion of the outer wall panel 3, and high waterproof performance can be obtained. Moreover, since the surface in which the groove part 13 of the flat plate member 11 is provided is turned to the outdoor side by arrange | positioning in this way, before the insertion of the primary waterproofing member 2 after the insertion of the secondary waterproofing member 1, from the outdoor side The secondary waterproof member 1 can be moved in the horizontal direction by inserting the misalignment correcting tool 9 into the outer wall joint and hooking the tip of the tool on the groove 13. Thereby, even if there is a deviation between the central axis of the outer wall joint and the central axis of the secondary waterproofing member 1, this can be corrected.

  The primary waterproofing member 2 is formed of a material having watertightness and elasticity such as polyvinyl chloride, for example, has a longitudinal shape as shown in FIG. 4, and ribs 21 wider than the joint width are formed on the left and right. A ridge 22 is formed at the tip, and is inserted into the outer wall joint from the ridge 22 side. At this time, since the rib 21 is elastically deformed so as to warp toward the outdoor side, it is clamped in the outer wall joint by this elastic force and exhibits a waterproof function by being in close contact with both walls in the outer wall joint. To do.

  In the above-mentioned example, the secondary waterproofing member 1 is disposed so that the outer wall panel mounting bracket 5 is used as a backup material and the surface of the flat plate member 11 where the groove 13 is not provided is in contact with the operation portion 53 of the outer wall panel mounting bracket 5. However, the waterproof structure of the outer wall joint of the present invention is not limited to this. For example, although not shown, another member such as a gap filling material may be used as the backup material.

  Next, the waterproof structure construction method of this embodiment is demonstrated. First, in a state where the outer wall panel 3 is attached to the shaft assembly 4 by the outer wall panel mounting bracket 5, the secondary waterproofing member 1 is inserted from the gap between the outer wall joints. When the secondary waterproof member 1 is inserted, the elastically deformed fin member 12 is bent to the outside as shown in FIG. 5 and can pass through the gap in the outer wall joint. Then, the secondary waterproofing member 1 that has passed through the outer wall joint is inserted until the surface of the flat member 11 on which the groove 13 is not provided is in contact with the operation portion 53 that protrudes to the most outdoor side of the outer wall panel mounting bracket 5. Is done. At this time, as shown in FIG. 5, it is preferable to use a long tool 7 to push in the secondary waterproofing member 1.

  The tool 7 is not limited to the shape shown in FIG. 5, but is wide enough to be inserted into the gap between the outer wall joints, and can be inserted until the secondary waterproof member 1 comes into contact with the backup material. Any shape and configuration may be used as long as it is long. For example, an existing tool such as a screwdriver may be used.

  When the step of inserting the secondary waterproof member 1 is completed, the positions of the left and right fin members 12 are then corrected. As shown in FIG. 6, the inserted secondary waterproofing member 1 is in a state in which the edge 15 of the fin member 12 protrudes into the outer wall joint as viewed from the outdoor side. In this state, the vicinity of the intermediate position between the bent portion 14 and the edge portion 15 of the fin member 12 is in contact with the end inner surface 32 of the outer wall panel 3. Even in this state, it is in contact with a certain amount of pressure, and a certain waterproof performance can be obtained, but in order to increase the waterproof performance by bringing the fin member 12 into close contact with the inner surface 32 of the end portion of the outer wall panel 3 with a higher pressure, The left and right fin members 12 are pushed into the end inner surface 32 of the outer wall panel 3. Specifically, as shown in FIG. 7, the bent portion 14 of the fin member 12 is pushed by using the tool 8 so as to be hidden by the end inner surface 32 of the outer wall panel 3, and the edge 15 of the fin member 12 is moved to the outer wall panel 3. Correction is made so as to come into contact with the inner end surface 32. As shown in FIG. 7, the tool 8 may be any tool as long as it has a width that can be moved within the outer wall joint and has strength as a member. For example, a tool such as an existing driver may be used. Further, the same tool 7 as described above may be used, and in this case, a thin plate having strength is optimal as a member.

  FIG. 8 shows a state after correcting the position of the fin member 12 as described above. By doing in this way, the edge part 15 of the fin member 12 closely_contact | adheres with the edge part inner side surface 32 of the outer wall panel 3 with high pressure, and can comprise the waterproof structure of the outer wall joint which has the outstanding secondary waterproof performance.

  The state before correcting the position of the fin member 12, that is, as shown in FIG. 6, the intermediate position between the bent portion 14 and the edge portion 15 of the fin member 12 is the end inner surface 32 of the outer wall panel 3. Even if it is in contact, it has a certain level of waterproof performance, and therefore, in the waterproof structure construction method for an outer wall joint according to the present invention, the step of correcting the position of the fin member 12 is not necessarily required. However, in order to obtain higher waterproof performance, it is preferable to perform this process.

  When the step of correcting the position of the fin member 12 is completed, the horizontal displacement of the secondary waterproof member 1 is then corrected. As shown in FIG. 9, the misalignment correction tool 9 is inserted into the outer wall joint, and the tip of the misalignment correction tool 9 is hooked in the groove portion 13 provided in the flat plate member 11, so that the misalignment from the outdoor side of the outer wall joint is performed. The secondary waterproof member 1 is moved in the horizontal direction by operating the correction tool 9. This misalignment correction tool 9 may be of any width as long as it is movable within the outer wall joint, has strength as a member, and has a shape in which its tip is hooked into the groove 13. Existing tools such as a screwdriver may be used. Moreover, the same thing as the tool 7 and the tool 8 may be sufficient, and in this case, a thin-plate-like thing with an intensity | strength is optimal as a member.

  Using the position shift correcting tool 9 as described above, the position shift in the horizontal direction between the center axis of the secondary waterproof member 1 and the center axis of the outer wall joint is corrected. In FIG. 9, the secondary waterproof member 1 is moved by the lever principle using the corners on the outdoor side of the outer wall joint, but the present invention is not limited to this. In FIG. 9, since the flat plate member 11 is provided with the five groove portions 13, when the operator inserts the misalignment correction tool 9 into the outer wall joint, the groove that is easily hooked is appropriately selected and operated. good.

  Next, the primary waterproof member 2 is inserted into the outer wall joint from the outdoor side. As shown in FIG. 4, the primary waterproofing member 2 is formed of a material having watertightness and elasticity such as polyvinyl chloride, and has a longitudinal shape, and ribs 21 wider than the joint width are formed on the left and right, and the tip is formed. A protruding line 22 is formed. When inserted into the outer wall joint from the side where the ridges 22 are provided, the rib 21 is elastically deformed so as to warp toward the outdoor side, and is sandwiched within the outer wall joint by the elastic force. As shown in FIG. 1, the primary waterproof member 2 is accommodated on the outdoor side from the secondary waterproof member 1.

  Next, the outer wall panel 3 and the procedure for attaching the outer wall panel 3 will be described. The outer wall panel 3 is, for example, a resin-type, cement-type, ceramic-type, or metal-type signing material formed in a rectangular flat plate shape. As shown in FIG. 12, the outer wall panel 3 is open on the indoor side of the ends adjacent to each other, and a C-shaped metal frame 31 for fixing the outer wall panel 3 to the shaft assembly 4 opens in the direction of the outer wall joint. Attached. The outer wall panel mounting bracket 5 includes a base portion 51 projecting outward from the shaft assembly 4, a panel fixing portion 52 for sandwiching the metal frame 31 of the outer wall panel 3 between the shaft assembly 4, and the panel fixing portion 52. An operating portion 53 that is rotated, a fixed shaft 54 that is inserted into a gap between adjacent shaft sets 4, and a stopper 55 that fixes the outer wall panel mounting bracket 5 to the shaft set 4 are provided. The stopper 55 is a rod-like member provided at the tip of the fixed shaft 54, and is attached rotatably on a surface perpendicular to the fixed shaft 54. Further, the outer wall panel mounting bracket 5 is configured such that the distance between the base 51 and the stopper 55 can be expanded and contracted by rotating the base 51. After the shaft assembly 4 is constructed, the outer wall panel mounting bracket 5 is inserted into the gap between the adjacent shaft assemblies 4 from the side where the stopper 55 of the fixed shaft 54 is provided. After the insertion, the stopper 55 is rotated to come into contact with the indoor side surface of the shaft assembly 4, and then the base 51 is rotated to press the stopper 55 against the indoor side surface of the shaft assembly 4 to attach the outer wall panel to the shaft assembly 4. The metal fitting 5 is fixed. When attaching the outer wall panel 3, the metal frame 31 of the outer wall panel 3 is pressed against the shaft assembly 4, the operation part 53 of the outer wall panel mounting bracket 5 is operated to rotate the panel fixing part 52, and the panel fixing part The metal frame 31 of the outer wall panel 3 is sandwiched and fixed by the shaft 52 and the shaft assembly 4. At this time, the operation unit 53 is configured to be located in the back of the outer wall joint between the adjacent outer wall panels 3. Therefore, the outer wall panel 3 can be attached from the outdoor side by operating while inserting a tool such as a screwdriver into the outer wall joint from the outdoor side, and the outer wall panel 3 is removed from the outdoor side during renovation and the like. be able to. The secondary waterproof member 1 of the outer wall joint of the present embodiment, the waterproof structure of the outer wall joint, and the waterproof structure construction method of the outer wall joint are arranged, configured and constructed on the outer wall joint between the adjacent outer wall panels 3 as described above. Prevent rainwater from entering the indoor side of the building through the exterior wall joints. The outer wall panel mounting method and the outer wall panel mounting bracket according to the present invention are not limited to the above-described configuration, and may have any configuration.

  As described above, according to the secondary waterproof member 1 of the outer wall joint, the secondary waterproof structure of the outer wall joint, and the secondary waterproof structure construction method of the outer wall joint according to the present invention, the secondary waterproofing is performed after the outer wall panel 3 is attached. Even when the member 1 is constructed and a horizontal displacement occurs, the displacement can be easily corrected from the outdoor side.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  When the secondary waterproofing member 1 of the outer wall joint, the waterproof structure of the outer wall joint, and the waterproof structure construction method of the outer wall joint according to the present invention are used, the outer wall joint can be waterproofed more reliably. It can be suitably used as the member 1, the waterproof structure of the outer wall joint, and the waterproof structure construction method of the outer wall joint.

DESCRIPTION OF SYMBOLS 1 Secondary waterproofing member 2 Primary waterproofing member 3 Outer wall panel 5 Outer wall panel mounting bracket (backup material)
9 Misalignment correction tool 11 Flat plate member 12 Fin member 13 Groove

Claims (4)

A secondary waterproofing member of the outer wall joint that is housed on the indoor side of the outer wall joint and prevents water from entering the indoor side from the outer wall joint,
A flat plate member having one or more grooves provided along the longitudinal direction on one side thereof, and a long flat plate member;
A pair of elastic and long members, one end of which is connected along both sides of the flat plate member, and has a bent portion that bends to the surface side where the groove portion of the flat plate member is provided. A secondary waterproofing member for an outer wall joint comprising a fin member. A primary waterproof member made of an elastic material formed slightly wider than the outer wall joint, and inserted and held in the outer wall joint;
A secondary waterproof member installed on the indoor side from the primary waterproof member, and a waterproof structure of an outer wall joint comprising:
The secondary waterproofing member is a long flat plate-shaped member having one or more grooves provided along the longitudinal direction on the outdoor side surface thereof, and a pair of elastic and long members. One end of each side is connected along both sides of the flat plate member, and has a fin member having a bent portion bent to the surface side where the groove portion of the flat plate member is provided, and the outer wall panel and the building An outer wall joint characterized in that the flat plate member abuts against a backup material housed between the shafts constituting the structural frame, and the fin member is in pressure contact with the inner surface of the end of two adjacent outer wall panels. Waterproof structure.   The waterproof structure for an outer wall joint according to claim 2, wherein the backup material is an outer wall panel mounting bracket for attaching the outer wall panel to a structural frame of a building. A flat plate member that is a long and flat plate member having one or more grooves along the longitudinal direction on one side thereof, and a pair of elastic and long members with one end of the long side of the flat plate member A secondary waterproof member comprising a fin member that is connected along both sides and has a bent portion that bends to the surface side where the groove portion of the flat plate member is provided, and the groove portion of the flat plate member is formed on an outer wall joint. Insert the provided surface facing the outdoor side,
The horizontal displacement of the secondary waterproof member is corrected by moving the secondary waterproof member in the horizontal direction by hooking the tip portion of the displacement correction tool in the groove provided in the flat plate member,
Next, a primary waterproof member made of an elastic material formed to be slightly wider than the outer wall joint is inserted into the outer wall joint from the outdoor side, and is sandwiched and waterproofed by the elastic force in the outer wall joint. Waterproof structure construction method for outer wall joints.

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