JP6920946B2 - Water-stop structure on the outer wall and balcony waist wall - Google Patents

Description

The present invention relates to a waterproof structure for an outer wall of a building and a waist wall of a balcony.

Outer wall panels with various patterns having recesses and protrusions are often applied to the outer walls of buildings, and such outer wall panels include, for example, ceramic siding materials and metal siding materials. Can be mentioned as a panel formed from. As the depth of the recess, that is, the depth to the bottom of the handle, increases, the appearance design becomes higher. Therefore, we also manufacture a deep-drilled outer wall panel with a deeper recess than the conventional outer wall panel. It has been. For example, the depth to the bottom of the handle is about 9 mm, but the depth is increased to about 12 mm by about 3 mm, so that the appearance design of the outer wall panel becomes remarkably excellent.

By the way, in a multi-story detached house or condominium, balconies are often installed on the second floor or higher. After the construction of the outer wall panel is completed at the site, the balcony is constructed so that the balcony floor beam is projected from the outer wall panel and the balcony floor beam supports the balcony waist wall. Inside the balcony waist wall, the balcony floor is constructed so as to be supported by the balcony floor beams. A balcony bottom plate is attached below the balcony floor beam, and the balcony floor beam is shielded from the outside. If there is a gap between the end face of the constructed balcony waist wall and the outer wall panel, rainwater or the like may infiltrate into the balcony floor beam or the like through this gap. If the balcony floor beam is wood, it will be corroded by the infiltrated rainwater, and if the balcony floor beam is shaped steel such as H-shaped steel, the coating film on the surface of the shaped steel will be deteriorated by rainwater, and the steel material will be exposed and corroded. It can be reached. Further, when the balcony waist wall is provided with a metal waist wall frame inside, rainwater may infiltrate into the inside waist wall frame, and the oxide film on the surface of the waist wall frame may be destroyed, leading to corrosion.

Therefore, it is necessary to take water-stopping measures between the end face of the balcony waist wall and the outer wall panel to prevent rainwater or the like from entering the inside of the balcony structure. In particular, in the case of the outer wall panel having the above-mentioned concave and convex portions, a gap is likely to be formed between the balcony waist wall and the outer wall panel, so that water blocking measures are even more essential and important. As a measure to stop water between the outer wall panel having the recess and the balcony waist wall, conventionally, the recess is eliminated on the surface of the outer wall panel to which the end face of the balcony waist wall is attached to form a flat mounting surface. Such scraping was performed, and a method of abutting the end face of the balcony waist wall against the formed flat mounting surface was sometimes applied. However, this method has problems that it takes time and effort to scrape the surface of the outer wall panel, and there is a possibility that the outer wall panel may be damaged at the time of scraping.

On the other hand, an elongated dry joint waterproof material is inserted into the recess in the vertical joint portion of the outer wall panel, the end face of the balcony waist wall is brought into contact with the vertical joint portion, and then the hardware provided with the dry joint waterproof material is placed on the balcony. A waterproof method and a waterproof structure have been proposed in which a dry water blocking material is pushed into the outer wall panel at the top of the waist wall and attached while being compressed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-256508

However, the waterproof structure described in Patent Document 1 is disclosed here because it is not intended to stop water between the outer wall panel having a patterned pattern having recesses and protrusions and the end face of the balcony waist wall. It is not possible to allow a long dry joint waterproofing material to penetrate into the large number of recesses provided in the outer wall panel, and it is not possible to form an effective waterproofing structure.

The present invention has been made in view of the above problems, and an outer wall capable of obtaining high water stopping property between an outer wall panel provided with a large number of recesses and an end face of a balcony waist wall without the need for scraping the surface of the outer wall panel. And the purpose of providing a waterproof structure for the balcony waist wall.

In order to achieve the above object, one aspect of the waterproof structure of the outer wall and the balcony waist wall according to the present invention is to attach the balcony floor beam below the balcony waist wall with respect to the balcony floor beam extending from the outer wall having the concave portion and the convex portion. It is a waterproof structure of the outer wall and the balcony waist wall formed between the end surface of the balcony waist wall and the outer wall in a state where the portion is fixed.
A dry water blocking material extending in the width direction of the end face is interposed between the end face and the outer wall in a compressed state.
The dry water blocking material is
Consists of a compressible elastic body,
A pedestal extending in the width direction of the end face and attached to the end face, a plurality of thin rods extending from the side surface of the pedestal on the outer wall side, and a plurality of thin rods extending from the side surface of the pedestal to the same length as the thin rod. It has an upper plate and a lower plate arranged above and below the plurality of thin rods.
A holding plate having a relatively smaller compressibility and a higher rigidity than the dry water blocking material is attached to the upper surface of the pedestal and the upper plate.

According to this aspect, a plurality of thin rods of the compressible dry water blocking material enter into the recess, and the upper upper plate presses the plurality of thin rods from above, and the upper plate is above the upper plate. By pressing the relatively high-rigidity pressing plate, a plurality of thin rods can be sufficiently inserted into the recesses, and high water stopping property can be obtained. Further, for example, when the tip of the pressing plate comes into contact with the surface of the outer wall panel in a compressed state, high water stopping property can be obtained also by this.

Further, in another aspect of the waterproof structure of the outer wall and the waist wall of the balcony according to the present invention, the holding plate is characterized in that it does not project toward the outer wall side of the upper plate.
According to this aspect, for example, in the case of a mounting method in which a balcony waist wall suspended by a heavy machine is hung and seated while being pressed against an outer wall panel, a relatively high-rigidity pressing plate above the outer wall panel is used. It is possible to eliminate the problem that the function of the pressing plate that presses down a plurality of thin rods is hindered because the rod is pushed too much and warps in the direction opposite to the hanging direction.

Further, another aspect of the water-stopping structure of the outer wall and the balcony waist wall according to the present invention is characterized in that a plurality of combinations of the holding plate and the dry water-stopping material are arranged side by side in the vertical direction. ..
According to this aspect, for example, the lower pressing plate is sandwiched between the dry water blocking materials above and below the pressing plate, so that the tip of the pressing plate, for example, firmly abuts on the outer wall panel, and at the abutting portion. High water stopping property can be obtained.

Further, another aspect of the water blocking structure of the outer wall and the balcony waist wall according to the present invention is characterized in that the holding plate and the dry water blocking material are arranged in the vicinity of the mounting portion.
According to this aspect, the mounting force acting on the balcony waist wall mounted on the balcony floor beam can be effectively applied to the holding plate and the dry water blocking material in the vicinity of the mounting portion, and thus the outer wall panel. On the other hand, the holding plate and the dry water blocking material can be sufficiently pressed and compressed.

Further, in another aspect of the water blocking structure of the outer wall and the balcony waist wall according to the present invention, another dry water blocking material extending in the vertical direction is arranged at the left and right positions of the end face below the dry water blocking material. Has been
The other dry water blocking material is made of a compressible elastic body, and is characterized by having at least a pedestal and a plurality of thin rods overhanging from the side surface of the pedestal on the outer wall side. ..
According to this aspect, even if moisture passes through the holding plate and the dry water blocking material that extend in the width direction of the end face of the balcony waist wall and flows downward, the other one that extends in the vertical direction at the left and right positions. The dry water blocking material can prevent water from flowing into the center side of the balcony waist wall, and thus prevent water from flowing into the center side and entering the structure of the balcony waist wall. Can be done.

In addition, another aspect of the waterproof structure of the outer wall and the waist wall of the balcony according to the present invention is characterized in that the elastic body is made of a closed cell structure.
According to this aspect, since the elastic body is made of a closed cell structure, water can be stopped even with a small compression ratio.

As can be understood from the above description, according to the water-stopping structure of the outer wall and the balcony waist wall of the present invention, it is possible to provide a water-stopping structure having high water-stopping property while eliminating the need for scraping the surface of the outer wall panel.

It is a perspective view of an example of a house to which the waterproof structure of the outer wall and the waist wall of a balcony according to each embodiment is applied. It is a perspective view of an example of the adhesive body of a dry water blocking material and a holding plate. It is a perspective view which shows the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall which concerns on 1st Embodiment is formed. It is a construction drawing which explained the construction method which attaches the balcony waist wall to the balcony floor beam. It is a figure which looked at the water-stop structure of the outer wall and the balcony waist wall which concerns on 1st Embodiment from the inside of the balcony together with the vertical sectional view of the wall. It is an enlarged view of the VI part of FIG. It is a perspective view which shows the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall which concerns on 2nd Embodiment is formed. It is a figure which looked at the water-stop structure of the outer wall and the balcony waist wall which concerns on 2nd Embodiment from the inside of the balcony together with the vertical sectional view of the wall. It is an enlarged view of the IX part of FIG. It is a perspective view which shows the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall which concerns on 3rd Embodiment is formed. It is a figure which looked at the water-stop structure of the outer wall and the balcony waist wall which concerns on 3rd Embodiment from the inside of the balcony together with the vertical sectional view of the wall.

Hereinafter, the water blocking structure of the outer wall and the balcony waist wall according to each embodiment will be described with reference to the attached drawings. In the present specification and the drawings, substantially the same components are designated by the same reference numerals to omit duplicate explanations.

[First Embodiment]
<Outline of housing>
First, with reference to FIG. 1, an example of a house to which the waterproof structure of the outer wall and the waist wall of the balcony according to each embodiment is applied will be described. Building H shown in FIG. 1 is a lightweight steel-framed double-decker house. The outer wall panel (outer wall) 1A is formed of a siding material. Examples of this siding material include ceramic siding, metal siding made of aluminum or steel plate, wood siding made by processing natural wood, and resin siding made of vinyl chloride resin or the like. The outer wall panel 1A has a pattern having various irregularities on its surface. FIG. 1 shows an enlarged view of the outer wall panel 1A. As shown in the figure, a plurality of vertical recesses 1b arranged at predetermined intervals in the horizontal direction and a plurality of vertical recesses 1b arranged at predetermined intervals in the vertical direction are arranged. It has a plurality of horizontal recesses 1a, and a rectangular convex portion is formed by these vertical recesses 1b and horizontal recesses 1a. Both the vertical recess 1b and the horizontal recess 1a are deeply dug to a depth of, for example, about 12 mm to the bottom of the handle, and the deeply dug outer wall panel 1A enhances the appearance design of the house H. The upper and lower end surfaces of the outer wall panel 1A are scraped off by half the thickness to form fruits, and the fruits of the outer wall panels 1A adjacent to the top and bottom are overlapped with each other to form a fruit. Is installed. Then, there is a vertical joint 2 between each row, and the vertical joint 2 is formed of a joint joiner (not shown) and a dry water blocking material such as a gasket. The vertical joint 2 may be provided with a wet water blocking material.

The house H shown in FIG. 1 is provided with a balcony 4 on the second floor, and can be freely accessed through the sweep-out window 3. A water blocking structure according to each embodiment described in detail below is formed between the balcony waist wall forming the balcony 4 and the outer wall panel 1A.

<Adhesive body of dry water blocking material and holding plate>
Next, with reference to FIG. 2, the adhesive body of the dry water blocking material and the holding plate that forms the water blocking structure of the outer wall and the balcony waist wall according to each embodiment will be described. FIG. 2 is a perspective view of an example of an adhesive body between a dry water blocking material and a holding plate. The dry water blocking material 10 is made of a compressible elastic body, and has a pedestal 11, a plurality of thin rods 14 extending from the side surface of the pedestal 11, and an upper plate 12 for sandwiching a bundle of the plurality of thin rods 14 above and below. It has a lower plate 13. The plurality of thin rods 14 are formed by a large number of slits in the vertical direction and the horizontal direction. For example, the overhang length s1 of the pedestal 11 is secured and the height t1 of the upper plate 12 and the lower plate 13 is secured with respect to the elastic body of the cube having the overall dimensions of height t, overhang length s, and width v. However, by forming a large number of slits in the vertical direction and the horizontal direction, the illustrated dry water blocking material 10 can be manufactured. For example, the pedestal 11, the upper plate 12, the lower plate 13, and a large number of thin rods 14 may be manufactured separately and bonded to each other to manufacture the dry water blocking material 10 of the illustrated example.

The dry water blocking material 10 which is a compressible elastic body is made of a closed cell structure. The closed cell structure is, for example, a sponge having a structure in which bubbles are arranged independently, and is a material that does not allow gas or liquid to pass through like an open cell structure. More specifically, the dry water blocking material 10 can be manufactured from EPDM rubber (ethylene propylene rubber), polyethylene rubber, or the like. As will be described later, the dry water blocking material 10 is pressed against the outer wall panel in a state of being adhered to the end face of the balcony waist wall, and is suspended so as to slide on the surface of the outer wall panel in this pressed state. Is exposed to construction methods such as sitting on a balcony floor beam. In this construction method, the dry water blocking material 10 is not damaged when sliding on the surface of the outer wall panel in a pressed state, and a plurality of thin rods 14 are firmly placed in the recesses of the outer wall panel at the seating position of the balcony waist wall. It is necessary to have deformation performance, rigidity, wear resistance, etc. that can be penetrated. Therefore, a material that can impart such performance is used in the production of the dry water blocking material 10, and the dimensions and shape of each part of the dry water blocking material 10 are set.

In the dry water blocking material 10, since the upper plate 12 and the lower plate 13 sandwich a bundle of a large number of thin rods 14, the large number of thin rods 14 are suppressed from being greatly warped upward even in the above construction method. As a result, a large number of thin rods 14 can be inserted into the horizontal recess 1a and the vertical recess 1b of the outer wall panel 1A. Further, the large number of thin rods 14 can be easily deformed when pressed to enter the vertical concave portion 1b and the horizontal concave portion 1a, and retain water inside the large number of thin rods 14, and the water content with the passage of time. Can be evaporated and dissipated.

As an example of the dimensions of the dry water blocking material 10, s1 can be set to 10 mm, s2 can be set to 20 mm, s can be set to 30 mm, t1 can be set to 5 mm, t2 can be set to 20 mm, t3 can be set to 5 mm, t can be set to 30 mm, and v can be set to about 100 mm. The width v of the dry water blocking material 10 corresponds to the length of the end face of the balcony waist wall in the width direction, and is set according to the width of the end face.

In the above construction method, for example, a dry water blocking material 10 having an overhang length s of 30 mm is pressed against the outer wall panel 1A to be compressed, and while sliding on the surface of the outer wall panel 1A in a state where the overhang length is about 12 mm. Suspended.

On the other hand, the holding plate 20 adhered to the upper surface of the dry water blocking material 10 is a member having a relatively smaller compressibility than the dry water blocking material 10 and therefore having a high rigidity. For example, when the dry water blocking material 10 is made of EPDM rubber sponge, the holding plate 20 can be made of PP resin (polypropylene), PE resin (polyethylene), or the like.

By adhering the relatively high-rigidity pressing plate 20 to the upper surface of the dry water blocking material 10, the upper plate 12 suppresses the warp of a large number of bundles of thin rods 14 during the above construction method. Warpage can be suppressed. As a result, a large number of thin rods 14 can be inserted into the horizontal recess 1a and the vertical recess 1b, and high water stopping property can be obtained. Further, the pressing plate 20 itself also comes into contact with the surface of the outer wall panel 1A, so that even higher water stopping property can be obtained.

Further, although the holding plate 20 is adhered to the pedestal 11 of the dry water blocking material 10 and the upper surface of the upper plate 12, the overhang length is shorter than that of the upper plate 12. This makes it possible to prevent the pressing plate 20 from being excessively pressed against the outer wall panel 1A and warping upward when the pressing plate 20 is slid down during the above construction method. Further, in the process in which the relatively high-rigidity pressing plate 20 slides down the surface of the outer wall panel 1A in a compressed state, the pressing plate 20 excessively presses the outer wall panel 1A and damages the surface of the outer wall panel 1A. It can also be suppressed.

As an example of the dimensions of the holding plate 20, s3 can be set to 20 mm, t4 can be set to 0.2 mm, and v can be set to about 100 mm (the same dimensions as the dry water blocking material 10). The pressing plate 20 is adhered to the pedestal 11 of the dry water blocking material 10 and the upper surface of the upper plate 12 via an adhesive or an adhesive tape.

Regarding the fact that the holding plate 20 has a shorter overhang length than the upper plate 12 and the bundle of a large number of thin rods 14, the illustrated example shows the overhang length of the bundle of the upper plate 12 and a large number of thin rods 14 from the pedestal 11. While (s2) is 20 mm, the length of the region of the holding plate 20 above the upper plate 12 and the bundle of a large number of thin rods 14 is 10 mm, and therefore the overhang length of the holding plate 20. The length is 10 mm shorter. Regarding how short the overhang length of the holding plate 20 is with respect to the overhang length (s2) of the upper plate 12 and the bundle of a large number of thin rods 14, when s2 is set to 20 mm, the range is 5 mm to 15 mm. It is preferable to set it short with. That is, in this case, the overhang length of the pressing plate 20 is in the range of 5 mm to 15 mm, and is in the length range of 1/4 to 3/4 of s2. If the overhang length of the pressing plate 20 is less than 1/4 of s2, the pressing effect of the pressing plate 20 becomes insufficient. On the other hand, when the overhang length of the pressing plate 20 exceeds 3/4 of s2, the above-mentioned construction method, that is, the construction in which the pressing plate 20 is suspended to the seating position so as to slide on the surface of the outer wall panel while being pressed against the outer wall panel. In addition, the pressing plate 20 is excessively pressed against the outer wall panel, making the adhesive body between the dry water blocking material 10 and the pressing plate 20 less slippery.

<Water-stop structure on the outer wall and balcony waist wall>
Next, the waterproof structure of the outer wall and the balcony waist wall according to the first embodiment will be described together with a construction method for seating the balcony waist wall on the balcony floor beam. FIG. 3 is a perspective view showing the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall according to the first embodiment is formed. The balcony waist wall 40 includes a metal waist wall frame 41 having a horizontally long track shape, and an outer wall panel 43 attached to one of the two wide side surfaces of the waist wall frame 41 via a base frame 42. It has an inner wall panel 44 attached to the other side of the wide side surface via a base frame 42. The inner wall panel 44 is a panel facing the inside of the balcony, and the material is the same as that of the outer wall panel 1A, for example. It has a vertical recess 44a and a horizontal recess 44b. The outer wall panel 43 is a panel facing the outside of the balcony, and like the inner wall panel 44, the material is, for example, the same as the outer wall panel 1A, and the surface thereof is spaced at a predetermined interval like the outer wall panel 1A. It has a plurality of vertical recesses 43a and horizontal recesses 43b that are arranged side by side.

The balcony waist wall 40 has a recessed area in the lower portion thereof, which is not inside the inner wall panel 44 and the waist wall frame 41, and only the outer wall panel 43 and the waist wall frame plate on the outer wall panel 43 side are present. It extends downward. Then, two metal plates 45 having bolt holes 45a are connected to the surface of the waist wall frame plate exposed inside by welding at intervals. note that. The method of forming the metal plate 45 is not limited to the illustrated example, and the waist wall frame plate may be formed by cutting and bending 90 degrees, or may be formed by other embossing or the like. good.

On the other hand, a balcony floor beam 46 projects from the outer wall of a house (not shown). The balcony floor beam 46 is made of, for example, H-shaped steel, and is connected to a beam made of H-shaped steel or the like between the floors of a house, a steel pipe column, or the like. On the upper surface of the upper flange of the balcony floor beam 46, two fixing angles 47 having bolt holes 47a are attached by welding at positions where the two metal plates 45 of the balcony waist wall 40 are just sandwiched. .. The balcony waist wall 40 is suspended and seated so that the metal plate 45 is sandwiched between the two fixing angles 47, with respect to the bolt holes 45a of the corresponding metal plates 45 and the bolt holes 47a of the fixing angles 47. By inserting a bolt (not shown), the balcony waist wall 40 is attached to the balcony floor beam 46. The balcony waist wall 40 forming a waterproof structure with the outer wall panel 1A also exists on the other side of the balcony space, and the front waist wall is attached to the front of these two balcony waist walls 40. A balcony waist wall in the shape of a plan view is formed.

At a position below the end surface 41a on the outer wall panel 1A side of the waist wall frame forming the balcony waist wall 40, that is, a position directly above the recessed region, an adhesive body of the dry water blocking material 10 and the holding plate 20 is attached to the holding plate. 20 is attached by adhesion or the like so as to extend in the width direction of the end face 41a in a posture in which 20 is arranged upward.

Before explaining the waterproof structure according to the first embodiment, a construction method for attaching the balcony waist wall 40 to the balcony floor beam 46 will be described with reference to FIG. As shown in FIG. 4A, a worker (not shown) pushes the balcony waist wall 40 toward the outer wall panel 1A while suspending the balcony waist wall 40 with a crane (not shown). For example, as described above, the dry water blocking material 10 having an overhang length s of 30 mm is pushed in to compress the dry water blocking material 10 and the holding plate 20, and as shown in FIG. 4B, the dry water blocking material 10 is compressed. A pushing force is applied until the overhang length u of the is about 12 mm. For example, the position where the dry water blocking material 10 has an overhang length of 12 mm (separation between the balcony waist wall 40 and the outer wall panel 1A) is such that when the balcony waist wall 40 is suspended and seated on the balcony floor beam 46, As described above, the two metal plates 45 of the balcony waist wall 40 are just sandwiched between the two fixing angles 47 of the balcony floor beam 46.

A pushing force is applied to the outer wall panel 1A side of the balcony waist wall 40, and the dry water blocking material 10 has an upward frictional force in the process of being suspended downward while the dry water blocking material 10 and the holding plate 20 are compressed. Will receive.

The water-stopping structure of the outer wall and the balcony waist wall according to the first embodiment, which is formed by the construction method shown in FIG. 4, will be described with reference to FIGS. 5 and 6. FIG. 5 is a view of the water blocking structure as viewed from the inside of the balcony together with a vertical cross-sectional view of the wall. Further, FIG. 6 is an enlarged view of the VI portion of FIG. 5, and when the balcony waist wall 40 is seated, the adhesive body between the dry water blocking material 10 and the holding plate 20 is a recess (here, a horizontal recess) of the outer wall panel 1A. It shows a state of contact with 1a) in two patterns.

As shown in FIG. 5, in a state where the balcony waist wall 40 is seated on the balcony floor beam 46, the bolt 48 is inserted through the bolt hole 45a of the corresponding metal plate 45 and the bolt hole 47a of the fixing angle 47, and the nut By tightening, the balcony waist wall 40 is fixed to the balcony floor beam 46. In the state where the illustrated balcony waist wall 40 is fixed, the adhesive body of the dry water blocking material 10 and the holding plate 20 enters and stops in the vicinity of the mounting portion 50 while being pressed into the horizontal recess 1a of the outer wall panel 1A. The water structure 100 is formed. Here, the “neighborhood” means a position close to the mounting portion 50, and means a lower position of the end face 41a as shown in the figure.

Further, the structure of the wall 1 will be outlined with reference to FIG. The wall 1 is, in order from the outside, an outer wall panel 1A having a pattern made of a siding material or the like, and an outer heat insulating material 1D to which a moisture permeable waterproof sheet 1C arranged on the indoor side with a ventilation layer 1B interposed therebetween is attached. It has a heat insulating material 1E, a moisture-proof sheet 1F, and an interior material 1G. The heat insulating material 1E is made of glass wool, rock wool or the like, and the interior material 1 is made of gypsum board or the like.

In this water blocking structure 100, for example, two patterns shown in FIGS. 6A and 6B are shown in the positional relationship between the adhesive body of the dry water blocking material 10 and the holding plate 20 and the horizontal recess 1a of the outer wall panel 1A. A waterproof structure can be formed. First, the water blocking structure 100 shown in FIG. 6A is in a form in which the holding plate 20 does not enter the horizontal recess 1a. In the construction method shown in FIG. 4, the adhesive body tends to warp upward in the X direction while being pressed as a whole, but the holding plate 20 that has not entered the horizontal recess 1a is pushed into the surface of the outer wall panel 1A. In this state, the dry water blocking material 10 below is pushed down by the pressing pressure P1 to prevent the dry water blocking material 10, for example, the upper plate 12 and the thin rod 14 from being excessively warped upward. By suppressing the warp of the upper plate 12 and the thin rod 14, they can sufficiently penetrate to the bottom of the handle of the horizontal recess 1a, and even in the house H where the horizontal recess 1a is formed deeply, it is thin. The rod 14 can reach the bottom of the handle of the horizontal recess 1a. Further, the tip of the pressing plate 20 itself is in contact with the outer wall panel 1A with a certain pressing force. Therefore, in combination with these, a water-stopping structure 100 having high water-stopping property is formed.

Further, the water blocking structure 100 shown in FIG. 6B is a form in which the holding plate 20 is inserted into the horizontal recess 1a. In this form, the compressive deformation of the pressing plate 20 is alleviated, and the upper plate 12 and the thin rod 14 are pushed downward by the pressing pressure P2 in the horizontal recess 1a. Also in this form, the holding plate 20 suppresses the warping of the upper plate 12 and the thin rod 14, so that these can sufficiently penetrate to the bottom of the handle of the horizontal recess 1a, and the water-stopping structure has high water-stopping property. 100 is formed.

As described above, regarding the water blocking structure 100 formed at the seating position of the balcony waist wall 40, the positional relationship between the adhesive body of the dry water blocking material 10 and the holding plate 20 and the horizontal recess 1a of the outer wall panel 1A is assumed. In any case, the water blocking structure 100 having high water stopping property is formed.

Further, in the water blocking structure 100 according to the first embodiment, the adhesive body between the dry water blocking material 10 and the holding plate 20 is located in the vicinity of the mounting portion 50. Therefore, the tightening force of the bolts and nuts in the mounting portion 50 easily acts on the adhesive body, and the desired compression state required for the adhesive body (for example, as described above, the overhang length of 30 mm is compressed to a predetermined value of 12 mm. In the state, the compression rate (40%) can be easily formed.

Although not shown, it is also high when the adhesive is located at the position of the vertical recess 1b of the outer wall panel 1A or when the adhesive is located at the intersection of the horizontal recess 1a and the vertical recess 1b. There is no change in obtaining water stoppage.

With the waterproof structure 100, when the balcony is completed, rainwater or the like passing between the balcony waist wall 40 and the outer wall panel 1A is stopped, and the rainwater or the like constitutes a mounting portion 50, such as a fixing angle 47 or a metal plate. 45, it is possible to prevent intrusion into the internal structural members of the balcony such as the balcony floor beam 46.

[Second Embodiment]
Next, the water blocking structure of the outer wall and the balcony waist wall according to the second embodiment will be described with reference to FIGS. 7 to 9. Here, FIG. 7 is a perspective view showing the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall according to the second embodiment is formed. FIG. 8 is a view of the water blocking structure of the outer wall and the balcony waist wall according to the second embodiment as viewed from the inside of the balcony together with the vertical cross-sectional view of the wall. Further, FIG. 9 is an enlarged view of the IX portion of FIG. 8, in which the adhesive body of the dry water blocking material 10 and the holding plate 20 is attached to the horizontal recess 1a of the outer wall panel 1A in a state where the balcony waist wall 40 is seated. Indicates a state of contact.

As shown in FIG. 7, two adhesive bodies of the dry water blocking material 10 and the holding plate 20 are attached to the lower position of the end surface 40a of the balcony waist wall 40 so as to be laminated one above the other. Here, the lower holding plate 20 is adhered to the lower dry water blocking material 10, but may also be adhered to the upper dry water blocking material 10 or the upper dry type in a non-adhesive state. It may only be in close contact with the water blocking material 10.

The balcony waist wall 40 shown in FIG. 7 is seated on the balcony floor beam 46 and bolted at the mounting portion 50 to form the water blocking structure 200 according to the second embodiment shown in FIG. In the water blocking structure 200, the balcony waist wall 40 and the outer wall panel are in a state where two adhesive bodies composed of a dry water blocking material 10 and a holding plate 20 are vertically laminated and compressed in the vicinity of the mounting portion 50. It is formed between 1A. As shown in FIG. 9, the upper pressing plate 20 pushes the dry water blocking material 10 below the pressing pressure P3 downward, and the lower pressing plate 20 also pushes the dry water blocking material 10 below the pressing pressure P4. And push it down. The upper dry water blocking material 10 is not contained in the horizontal recess 1a but is located on the surface of the outer wall panel 1A, and the lower dry water blocking material 10 is contained in the horizontal recess 1a. Both the water blocking material 10 are pushed down by the upper pressing plate 20, and excessive upward warping is suppressed. The upper dry water blocking material 10 is pressed against the surface of the outer wall panel 1A to exhibit water stopping, and the lower dry water blocking material 10 enters the horizontal recess 1a and exhibits water stopping.

Further, since the lower pressing plate 20 is sandwiched between the upper and lower dry water blocking materials 10, the pressing plate 20 is effectively prevented from warping upward, and is firmly in contact with the surface of the outer wall panel 1A. .. As a result, the water blocking property of the water blocking structure 200 is further enhanced.

[Third Embodiment]
Next, the water blocking structure of the outer wall and the balcony waist wall according to the third embodiment will be described with reference to FIGS. 10 and 11. Here, FIG. 10 is a perspective view showing the balcony waist wall and the balcony floor beam before the waterproof structure of the outer wall and the balcony waist wall according to the third embodiment is formed. FIG. 11 is a view of the water blocking structure of the outer wall and the balcony waist wall according to the third embodiment as viewed from the inside of the balcony together with the vertical cross-sectional view of the wall.

As shown in FIG. 10, an adhesive body of the dry water blocking material 10 and the holding plate 20 is attached to the end surface 40a of the balcony waist wall 40 at an upper position thereof, and the lower end surface 40a of the dry water blocking material 10 is attached. At the left and right positions of the above, two dry water blocking materials 30 having other configurations extending in the vertical direction are arranged. The dry water blocking material 30 is formed of an elongated pedestal 31 made of the same material as the dry water blocking material 10 and a bundle of a large number of thin rods 32. By providing a large number of slits in the vertical direction and the horizontal direction so as to secure the pedestal 31 with respect to the elongated hexahedron, the dry water blocking material 30 of the illustrated form can be manufactured.

The balcony waist wall 40 shown in FIG. 10 is seated on the balcony floor beam 46 and bolted at the mounting portion 50 to form the water blocking structure 300 according to the third embodiment shown in FIG. The water stop structure 300 has a high stop like the other embodiments of the water stop structures 100 and 200 by pressing the adhesive body between the dry water stop material 10 and the holding plate 20 at a position above the balcony waist wall 40. Demonstrates water-based. However, since the water is stopped at the upper position of the balcony waist wall 40, if the water passes through the adhesive, there is a certain distance that the water flows down before reaching the mounting portion 50. Therefore, the end face 41a It is assumed that the water will flow down toward the center, and in such a case, there is a high possibility that the water will infiltrate the internal structural members of the balcony. Therefore, in the water blocking structure 300, the two left and right dry water blocking materials 30 extending to the mounting portion 50 prevent the water from flowing down so as to approach the center of the end surface 41a. In the water blocking structures 100 and 200 of the other embodiments, since the adhesive body of the dry water blocking material 10 and the holding plate 20 is located in the vicinity of the lower mounting portion 50, the moisture temporarily forms the adhesive body. Even if it passes through, since there is almost no distance to the mounting portion 50, there is no risk of water flowing down so as to approach the center of the end face 41a, and therefore it is not necessary to provide two dry water blocking materials 30 on the left and right. However, also in the water blocking structures 100 and 200, as in the water blocking structure 300, two dry water blocking materials 30 on the left and right having a short length (because the distance to the mounting portion 50 is short) are provided below the adhesive body. May be good.

It should be noted that the configuration or the like described in the above embodiment may be another embodiment in which other components are combined, and the present invention is not limited to the configuration shown here. This point can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form thereof.

1: Wall, 1A: Outer wall panel (outer wall), 1a: Horizontal recess, 1b: Vertical recess, 1B: Ventilation layer, 1C: Moisture permeable waterproof sheet, 1D: Outer insulation material, 1E: Insulation material, 1F: Moisture proof sheet , 1G: Interior material, 2: Vertical joint, 3: Sweep window, 4: Balcony, 10: Dry water blocking material, 11: Pedestal, 12: Upper plate, 13: Lower plate, 14: Thin bar, 20: Holding plate , 30: Dry waterproof material, 31: Pedestal, 32: Thin bar, 40: Balcony waist wall, 41: Waist wall frame, 41a: End face, 42: Base frame, 43: Outer wall panel, 43a: Vertical recess, 43b: Horizontal recess, 44: Inner wall panel, 44a: Vertical recess, 44b: Horizontal recess, 45: Metal plate, 46: Balcony floor beam, 47: Fixing angle, 48 volts, 50: Mounting part, 100, 200, 300: Stop Water structure (water stop structure on the outer wall and balcony waist wall), H: Building (house)

Claims (6)

It is formed between the end face of the balcony waist wall and the outer wall in a state where the lower mounting portion of the balcony waist wall is fixed to the balcony floor beam protruding from the outer wall having the concave portion and the convex portion. It has a waterproof structure on the outer wall and the waist wall of the balcony.
A dry water blocking material extending in the width direction of the end face is interposed between the end face and the outer wall in a compressed state.
The dry water blocking material is
Consists of a compressible elastic body,
A pedestal extending in the width direction of the end face and attached to the end face, a plurality of thin rods extending from the side surface of the pedestal on the outer wall side, and a plurality of thin rods extending from the side surface of the pedestal to the same length as the thin rod. It has an upper plate and a lower plate arranged above and below the plurality of thin rods.
A water blocking structure for an outer wall and a balcony waist wall, characterized in that a holding plate having a relatively smaller compressibility and higher rigidity than the dry water blocking material is attached to the upper surface of the pedestal and the upper plate. .. The water-stop structure for an outer wall and a balcony waist wall according to claim 1, wherein the holding plate does not project toward the outer wall side of the upper plate. The water blocking structure for an outer wall and a balcony waist wall according to claim 1 or 2, wherein a plurality of sets of the combination of the holding plate and the dry water blocking material are arranged side by side. The water blocking structure for an outer wall and a balcony waist wall according to any one of claims 1 to 3, wherein the holding plate and the dry water blocking material are arranged in the vicinity of the mounting portion. .. Other dry water blocking materials extending in the vertical direction are arranged at the left and right positions of the end face below the dry water blocking material.
The other dry water blocking material is made of a compressible elastic body, and is characterized by having at least a pedestal and a plurality of thin rods overhanging from the side surface of the pedestal on the outer wall side. , The waterproof structure of the outer wall and the waist wall of the balcony according to any one of claims 1 to 4. The water-stopping structure for an outer wall and a balcony waist wall according to any one of claims 1 to 5, wherein the elastic body is made of a closed cell structure.

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