JP7130508B2 - Buildings with waterproof brackets for brackets, waterproof structure between floors, and continuous eaves - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof bracket for brackets, a waterproof structure for inter-floor sections, and a building having continuous eaves.

In general, in an exterior wall with a ventilation layer, the primary waterproof layer is formed by the exterior wall panel (including gaskets at joints), and the secondary waterproof layer formed by a waterproof sheet or the like is placed on the interior side of the room through the ventilation layer. A waterproof structure is constructed by the layer also serving as a drainage path. Even if rainwater enters the room from the primary waterproof layer for some reason, the secondary waterproof layer blocks the rainwater from entering the room, and the rainwater runs down the drainage route while traveling through the secondary waterproof layer and flows down the wall. drained to the outside.

On the other hand, when there is an overhanging structure such as eaves between floors in a multi-story building, this overhanging structure is supported by brackets brought out from the frame side. If there is a bracket on the outer wall of the building, the above-mentioned drainage structure is divided by the bracket. A special structure based on continuity is required. In addition, the brackets are arranged so as to be brought outside, for example, at positions corresponding to vertical joints of the outer wall.

Here, regarding a building in which a bracket protrudes outside from a position corresponding to a joint part of an outer wall in an inter-floor part, a building that enables efficient water stoppage has been proposed. Specifically, in the joint between floors where the bracket is provided, it has an inter-floor draining plate for draining water in the inter-story part, and a joint-side draining plate connected to this inter-floor draining plate. The plate has a connecting portion connected to the inter-floor draining plate, and a protruding cover that covers the periphery of the base of the arm. The joint-side draining plate is separated into the upper structural part and the lower structural part, and the protruding cover part of the lower structural part enters the inside of the protruding cover part of the upper structural part, and the joint overhangs the bracket. is provided with the gasket being vertically divided at the projecting cover (see, for example, Patent Document 1).

JP 2017-223056 A

According to the building described in Patent Document 1, the joint-side draining plate is separated into the upper structural part and the lower structural part, and the protruding cover of the lower structural part enters inside the protruding cover of the upper structural part, Even if the gasket is vertically divided at the protruding cover in the joint where the arm protrudes, water can be stopped efficiently without using a sealing material. By the way, in the building described in Patent Document 1, an inter-floor draining board dedicated to the inter-floor part is arranged in the inter-floor part, and a dedicated joint side draining board is connected around the bracket to the inter-floor draining board. and More specifically, an inter-floor draining board is attached to the draining boards above and below the inter-floor part divided by the inter-floor part, and a dedicated joint-side draining board is attached to the inter-floor draining board around the bracket. Therefore, the waterproof structure of the inter-floor area and the surrounding drain board are integrated, so multiple types of drain boards are required, and there is room for improvement in the construction cost when forming this waterproof structure. be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a waterproof bracket for a bracket that can economically form a highly waterproof structure that is continuous with other general outer wall parts around the bracket in the inter-story part of a building. It is an object of the present invention to provide an inter-floor waterproof structure in which the waterproof metal fitting for the arm is provided around the base of the arm, and furthermore, to provide a building having continuous eaves provided with the inter-floor waterproof structure.

In order to achieve the above object, one aspect of the waterproof bracket for a bracket according to the present invention includes:
A waterproof bracket for a bracket to be arranged around the base of the bracket in an inter-story part of a building,
an upper divided body having a top piece and left and right upper side pieces bent from the top piece and extending downward;
a lower divided body having a lower end piece and a lower side piece bent from the lower end piece and extending upward, and engaged with the upper divided body;
Two water stop materials are attached to the outer periphery of the upper divided body and are continuous over the left and right upper side pieces and the top piece,
The two water-stopping materials are a primary water-stopping material forming a primary water-stopping layer in a state in which the waterproof metal fitting for the arm is arranged around the base of the arm, and a primary water-stopping material forming a primary water-stopping layer, and one on the indoor side of the primary water-stopping layer. It is characterized by being a secondary water-stopping material that forms a secondary water-stopping layer in.

According to this aspect, the waterproof metal fitting for the arm (also referred to as the waterproof accessory for the arm) consists of the primary water-stopping material forming the primary water-stopping layer and the secondary water-stopping layer located on the indoor side of the primary water-stopping layer. By having two water-stopping materials of the secondary water-stopping material to be formed, these two water-stopping materials can be used as the primary water-stopping layer constituent member (outer wall panel) around the arm or the secondary water-stopping layer constituent member (two A secondary water-stopping panel can form a two-layer water-stopping layer that is continuous with, for example, a glass wool board or the like. In other words, since the waterproofing hardware for the bracket has two water-stopping materials around it, there is no need for a special water-stopping board or the like in the space between floors. It is possible to economically form a two-layer cutoff layer that is continuous with the next cutoff layer constituent member. Here, the waterproof metal fitting for the arm is formed of an upper split body made of metal and a lower split body made of metal. Since the waterproof metal fitting for the arm is formed, it is also excellent in attachability around the base of the arm. The waterproof metal fittings for the arm are arranged around the base of the arm to form a two-layer water-stopping layer that is continuous with the surrounding secondary water-stopping layer and the primary water-stopping layer. Waterproofness against rainwater around the base of the arm made of steel or the like is guaranteed.

In another aspect of the waterproof metal fitting for a bracket according to the present invention, the secondary water stop material has a tapered surface that rises while being inclined toward the interior of the room.

According to this aspect, since the secondary water-stopping material has a tapered surface that rises while being inclined toward the indoor side, the part of the secondary water-stopping material on the indoor side is used for secondary water-stopping. A posture in which the panel is firmly pressed (or a state in which the secondary water cutoff panel is placed on the tapered surface) can be formed. Therefore, it is possible to effectively suppress rainwater flowing down the drainage path on the outdoor side of the secondary water cutoff layer from entering the room through the secondary water cutoff layer. For example, the secondary water cutoff layer constituent members of the left and right outer wall panels are placed on the secondary water cutoff materials of the left and right upper side pieces of the upper divided body so as to abut on the top piece of the upper divided body. The secondary water-stopping layer forming member of the upper outer wall panel, the dry joint material such as the gasket, and the like are put on the secondary water-stopping material so as to abut on the secondary water-stopping material.

In another aspect of the waterproof metal fitting for a bracket according to the present invention, the secondary water-stopping material is a resin-made water-stopping material having a triangular or substantially triangular cross-section and a hollow space.

According to this aspect, by having a resin-made secondary water stop material having a triangular or substantially triangular cross-section and a hollow, which has a tapered surface that rises while being inclined toward the indoor side, the bottom surface of the triangular cross-section and the , the upper side piece and the top end piece of the upper divided body can be brought into surface contact and both can be firmly bonded. In addition, since it is hollow, the secondary water-stopping material is easily deformable, and material costs can be reduced. Here, the term "substantially triangular" means, for example, that the hypotenuse of the secondary water-stopping material is not flat, but has a curved surface that curves outward. ). In this way, when the slope of the secondary water-stopping material of the waterproof bracket for the arm against which the secondary water-stopping layer forming member around the arm abuts is a curved surface, the slope is flat (having a triangular cross-section). Compared to , the slope of the secondary water-stopping material can be effectively deformed when high deformation performance is required for the slope, and a continuous secondary water-stopping layer can be formed. For example, if there is a bracket near the inside corner of the outer wall of the building, it may be difficult to fit the waterproof bracket for the bracket at the base of the bracket. Waterproof hardware for brackets with water material is suitable.

Further, one aspect of the inter-floor waterproof structure according to the present invention is
In an inter-story part of a building, a plurality of the brackets are arranged at intervals, and the waterproof metal fittings for brackets according to claim 1 or 2 are attached around the base of each of the brackets,
By contacting the end of the secondary water-stopping panel with the secondary water-stopping material, the secondary water-stopping layer is formed around the bracket between the floors of the building,
On the outdoor side of the secondary water cutoff layer, the primary water cutoff material is in contact with the outer wall panel, or the primary water cutoff material is arranged on the outdoor side of the outer wall panel, so that the floor of the building It is characterized in that the primary water cutoff layer is formed around the arm of the intermediate portion.

According to this aspect, the primary water-stopping material of the waterproof bracket for the arm arranged around the base of the arm forms a primary water-stopping layer by, for example, contacting the outer wall panel around the arm, thereby forming a secondary water-stopping layer. The tapered surface of the water material is in contact with the edge of the secondary waterproof panel of the outer wall surrounding the bracket to form a secondary waterproof layer, resulting in a continuous two-layer structure between the outer wall surrounding the bracket and the secondary waterproof layer. can be formed without increasing the construction cost.

In another aspect of the inter-floor waterproof structure according to the present invention, the secondary water stop material has a tapered surface that rises while being inclined toward the indoor side, and the secondary water stop panel is provided on the tapered surface. are in contact with each other.

According to this aspect, the end portion of the secondary water-stopping panel abuts (or rests on) the tapered surface of the secondary water-stopping material, which rises while being inclined toward the interior of the room. It is possible to effectively prevent rainwater flowing down the drainage path on the outdoor side of the water layer from entering the room through the secondary water cutoff layer.

In addition, one aspect of the building having continuous eaves according to the present invention is
Continuous eaves are arranged on the plurality of brackets forming the inter-floor waterproof structure,
A drain gutter extending in the extending direction of the continuous eaves is attached.

According to this aspect, it is possible to provide a building having continuous eaves supported by a plurality of arms and having excellent waterproof and drainage properties. As a building with continuous eaves, a canch room or a canch balcony faces the entrance side of the building (for example, the facade), and the continuous eaves (including continuous canopy eaves) are horizontal on the entire surface of the façade. There is a form in which the eaves are continuously provided on the façade surface, and a form in which the eaves continue horizontally on the entire surface of the façade and continue to the side surface perpendicular to the façade surface. Since the continuous eaves have a drain gutter extending in the extending direction, rainwater can flow through the drain gutter and be drained to the outside through the drain gutter. Here, the drainage trough may have a length approximately equal to the extension length of the continuous eaves, or a plurality of drainage troughs having a predetermined length are intermittently arranged in the extension direction of the continuous eaves. may be in the form

As can be understood from the above description, according to the waterproof metal fittings for brackets of the present invention, it is possible to economically form a highly waterproof structure that is continuous with other general outer wall parts around the brackets in the inter-story part of a building. be able to.

1 is an exploded perspective view of an example of a waterproof metal fitting for a bracket according to an embodiment; FIG. FIG. 2 is an assembly completed diagram of an example of the waterproof metal fitting for a bracket according to the embodiment. Both (a) and (b) are diagrams showing the cross-sectional shape of the secondary water stop material attached to the upper side piece. 1 is a perspective view of an example of an inter-floor waterproof structure according to an embodiment, showing the left side wall of a bracket removed; FIG. 1 is a vertical cross-sectional view of an example of an inter-floor waterproof structure according to an embodiment, also showing a drain gutter. FIG. It is a perspective view of an example of a building having continuous eaves according to the embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a building having a waterproof bracket for brackets, a waterproof structure for an inter-floor part, and a continuous eave according to an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, in the present specification and drawings, substantially the same components may be denoted by the same reference numerals, thereby omitting duplicate descriptions.

[Waterproof hardware for brackets according to the embodiment]
First, with reference to FIGS. 1 to 3, an example of a waterproof bracket for a bracket according to an embodiment will be described. Here, FIG. 1 is an exploded perspective view of an example of the waterproof metal bracket for the arm according to the embodiment, and FIG. 2 is an assembly completed view of the example of the waterproof metal bracket for the arm according to the embodiment.

As shown in the exploded perspective view of FIG. 1, the waterproof bracket 30 shown in FIG. 2 has an upper split body 10 and a lower split body 20 both made of metal. The upper divided body 10 has a top piece 11 and left and right upper side pieces 12 bent from the top piece 11 and extending downward, and has a U-shape when viewed from the front. A plurality of engaging pieces 12a projecting outward are provided below one of the narrow end surfaces of the upper side piece 12 .

On the other hand, the lower divided body 20 has a lower end piece 21 and a lower side piece 22 that bends from the lower end piece 21 and extends upward, and has an L-shape when viewed from the side. A plurality of engaging pieces 22a projecting outward are provided on the narrow left and right end faces of the lower side piece 22, and as shown in FIG. are provided, and the corresponding engaging pieces 12a, 22a provided on both sides are engaged with each other to form the waterproof metal fitting 30 for the arm.

Two water stop members 13 and 14 are attached to the outer periphery of the upper divided body 10 and are continuous over the left and right upper side pieces 12 and the top end piece 11 . More specifically, the two water stop materials 13 and 14 are a primary water stop material 13 forming a primary water stop layer and a primary A secondary water cutoff material 14 that forms a secondary water cutoff layer on the indoor side of the water cutoff layer. Although the illustrated primary water stop material 13 is continuous in a U-shape, like the secondary water stop material 14, the linear water stop material for the crown piece 11 and the left and right upper side pieces 12 may be formed by two straight water stop materials. In addition, the illustrated secondary water stop material 14 is formed of a straight water stop material for the top piece 11 and two straight water stop materials for the left and right upper side pieces 12. It may be in the form of continuing in a U-shape like the primary water stop material 13 .

The primary water stop material 13 is formed of an elastic body having a rectangular cross section. On the other hand, the secondary water stop material 14 is formed of an elastic body having a triangular cross section. The primary water-stopping material 13 and the secondary water-stopping material 14 are dry water-stopping materials that are compressible elastic bodies, and are made of, for example, a closed-cell structure. This closed-cell structure is, for example, a sponge having a structure in which cells 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 water stop materials 13 and 14 can be made of EPDM rubber (ethylene propylene rubber), polyethylene rubber, or the like. Both the primary water stop material 13 and the secondary water stop material 14 are adhered to the top end piece 11 and the upper side piece 12 made of metal with an adhesive.

As shown in FIG. 2, the secondary water-stop material 14 has a tapered plane 14d that rises while being inclined toward the indoor side. As will be described in detail below, since the secondary water stop material 14 has a tapered plane 14d that rises while being inclined toward the interior of the room, the portion of the tapered plane 14d on the interior side of the room can be adjusted to the left, right, or upper part of the secondary water cutoff material 14. It can be firmly pressed by the water stopping panel. As a result, the rainwater flowing down the drainage path on the outdoor side of the secondary water cutoff layer formed by the secondary water cutoff material 14 and the secondary water cutoff panel is directed to the indoor side through the secondary water cutoff layer. It becomes possible to effectively suppress the intrusion into the In addition, since the secondary water-stopping material 14 has the hollow 14a, the secondary water-stopping material 14 is easily deformed, which leads to a reduction in material costs.

Between the primary water-stopping material 13 and the secondary water-stopping material 14, a drainage layer is formed which is continuous with the ventilation layer forming the upper outer wall. Here, when the bracket is arranged at a position corresponding to the vertical joint formed between the outer wall panels, the drainage layer (drainage path) on the back of the dry joint material such as a gasket attached to the vertical joint is A continuous drainage layer is formed between the primary water stop material 13 and the secondary water stop material 14 in the top piece 11 . In the waterproof bracket 30 shown in FIG. 2, the lower side pieces 22 of the upper split body 10 and the lower split body 20 form a bracket insertion opening 31 through which the bracket (see FIG. 4) is inserted.

Next, referring to FIG. 3, the cross-sectional shape of the secondary water stop material attached to the upper side piece will be described. 3(a) and 3(b) are top views of the secondary water stop materials 14 and 14A attached to the upper side piece 12. FIG. The secondary water stop material 14 shown in FIG. 3( a ) has a triangular cross-sectional shape, and a flat bottom surface 14 b serves as an adhesive surface for the upper side piece 12 . Further, the flat surface 14c arranged on the indoor side is a flat surface that is flush with the end surface of the ceiling piece 11 on the indoor side. Furthermore, the tapered surface 14d is a flat surface that rises while being inclined toward the interior as described above. A secondary water stop panel (not shown) on the right side of the tapered surface 14d of the secondary water stop material 14 attached to the right upper piece 12 shown in FIG. 3(a). A secondary water cutoff layer is formed by contacting with the

On the other hand, the secondary water stop material 14A shown in FIG. 3(b) is a water stop material having a substantially triangular cross-section having an outwardly curved curved surface 14e instead of the tapered flat surface 14d shown in FIG. 3(a). When a secondary water cutoff panel (not shown) adjacent to the curved surface 14e abuts and pressure P is applied, the curved surface 14e is more easily deformed inward than the tapered flat surface 14d shown in FIG. 3(a). (deformation δ). For example, if there is a bracket near an internal corner of the outer wall of the building, it may be difficult to fit the waterproof bracket 30 at the base of the bracket. A waterproof fitting 30 for a bracket having a water stop material 14A is suitable.

[Inter-floor waterproof structure according to the embodiment]
Next, an example of the inter-floor waterproof structure according to the embodiment will be described with reference to FIGS. 4 and 5. FIG. Here, FIG. 4 is a perspective view of an example of the inter-floor waterproof structure according to the embodiment, with the outer wall on the left side of the bracket removed. Moreover, FIG. 5 is a vertical cross-sectional view of an example of the inter-floor waterproof structure according to the embodiment, which also shows a drain gutter.

As shown in the figure, in an inter-story section 204 of the building, the waterproof bracket 30 is arranged around the base of the bracket 54, and the waterproof bracket 30 and the structural member of the outer wall form the inter-story waterproof structure 100. be done. In the frame of the building, an inter-story beam 51 formed of H-shaped steel extends in the width direction of the outer wall between floors, and a vertical stiffener 52 is welded to the outer wall side of the inter-story beam 51. there is

End plates 53 are welded to ends of arms 54 made of H-section steel, and the end plates 53 are bolted to vertical stiffeners 52 that are joined to the inter-story beams 51. . The illustrated arm 54 supports the continuous eaves described in detail below, so it bears a large load and is therefore made of rigid H-beam. In places where it is difficult to fit the brackets 54, such as the ends of continuous eaves and internal corners, the brackets may be formed of shaped steel materials such as channel steels and flat steels instead of H-shaped steels.

In the construction of the building, the upper divided body 10 is placed on a predetermined position of the bracket 54 on the structural framework to which the brackets 54 are attached to the inter-floor beams 51, and the lower divided body 20 is lifted from below. By engaging the divided body 10, the waterproof metal fitting 30 for the arm is attached around the base of the arm 54. - 特許庁After that, as shown in FIG. 4, the outer wall constituent members are attached, for example, from the right side. The outer wall of the illustrated example is formed by an outer wall panel 41 and a glass wool board 42 (an example of a secondary water stop panel) having a moisture permeable waterproof sheet 43 attached to the surface, and the outer wall panel 41 and the moisture permeable waterproof sheet A ventilation layer 44 that serves as a drainage layer (drainage path) for rainwater is interposed between 43 . A vertical beam 55 made of channel steel or the like is disposed on the indoor side of the glass wool board 42, and a heat insulating material made of glass wool, rock wool, or the like is provided in the space formed by the vertical beam 55. (not shown) are provided. The outer wall panel 41 is formed of a siding material, and more specifically, ceramic siding, metal siding made of aluminum or steel plate, woody siding made of processed natural wood, resin-based siding made of vinyl chloride resin, or the like. Siding etc. are mentioned.

The primary water stop layer 60 is formed by positioning the primary water stop materials 13 on the outdoor side of the outer wall panel 41 and bringing them into contact with each other. On the other hand, the secondary water cutoff layer 70 is formed by abutting (mounting on) the end portion of the secondary water cutoff panel 42 on the tapered surface 14 d of the secondary water cutoff material 14 . Between the primary water stop layer 60 and the secondary water stop layer 70, there is a drainage layer 80 in which the ventilation layer 44 of the outer wall 40 is continuously formed. 70 and a drainage layer 80 is formed.

As shown in FIG. 5, a drain gutter 90 is provided below the waterproof bracket 30 (and the arm 54). etc. is fixed. The drain gutter 90 extends in the extending direction of the continuous eaves of the building, as will be described in detail below.

The rainwater flowing down the drainage layer 80 of the outer wall 40 further flows down between the primary water-stopping layer 60 and the secondary water-stopping layer 70 of the waterproof bracket 30, and flows into the drainage gutter 90 disposed below in the X direction. drained to

Returning to FIG. 4 , the bracket 54 is arranged at a position corresponding to the vertical joint of the outer wall 40 in the inter-story section 204 . For this reason, the left side wall 40 (not shown in FIG. 4), like the right side wall 40 shown in FIG. After being erected while forming the water layer 70, a dry gasket (not shown) is arranged in the longitudinal joint between the left and right outer walls 40. As shown in FIG. The lower end of this gasket abuts on the tapered surface 14d of the secondary water-stop material 14 attached to the top piece 11 of the waterproof bracket 30 for bracket.

According to the illustrated inter-story waterproof structure 100, a highly watertight primary water-tight layer 60 and a secondary water-tight layer 70 are formed between the waterproof bracket 30 and the outer wall 40 surrounding it. By draining rainwater downward through the drainage layer 80 between the layer 60 and the secondary waterproof layer 70, a waterproof structure in the inter-floor section with excellent waterproofness can be formed. In particular, since the secondary water-stopping material 14 forming the secondary water-stopping layer 70 has the tapered plane 14d that rises while being inclined toward the indoor side, the indoor-side portion of the tapered plane 14d is It can be firmly pressed by the secondary water cutoff panel 42 and the gasket located above. As a result, the rainwater flowing down the drainage path 80 on the outdoor side of the secondary water cutoff layer 70 formed by the secondary water cutoff material 14 and the secondary water cutoff panel 42 can pass through the secondary water cutoff layer 70. It is possible to effectively suppress intrusion into the room through the air.

[Building with continuous eaves according to the embodiment]
Next, an example of a building having continuous eaves according to the embodiment will be described with reference to FIG. Here, FIG. 6 is a perspective view of an example of a building having continuous eaves according to the embodiment. The illustrated building 200 is a two-story lightweight steel-frame house, and has canch rooms 205 and canch balconies 206 facing the facade surface 201 .

A continuous eaves 207 is provided in the inter-story part 204 from the facade surface 201 to the left and right side surfaces 202 and 203 orthogonal thereto. This continuous canopy 207 is, for example, a canopy canopy. Since it is a continuous eaves 207, brackets 54 formed of H-shaped steel shown in FIGS. It is 4 and the like are attached around each arm 54 to form an inter-floor waterproof structure 100 shown in FIG. 4 and the like. 5 is arranged below the continuous eaves 207 so as to extend in the extension direction of the continuous eaves 207. As shown in FIG.

According to the building 200 having the continuous eaves 207, the inter-floor waterproof structure 100 having excellent waterproofness is formed around the plurality of arms 54 that support the continuous eaves 207, and furthermore, the extension direction of the continuous eaves 207 is formed. By providing the drain gutter 90 extending to the inside, the building is excellent in waterproofness and drainage.

It should be noted that other embodiments may be possible in which other components are combined with the configurations described in the above embodiments, and the present invention is not limited to the configurations shown here. Regarding this point, it is possible to change without departing from the gist of the present invention, and it can be determined appropriately according to the application form.

10: Upper split body 11: Top piece 12: Upper side piece 13: Primary water stop material (water stop material) 14: Secondary water stop material (water stop material) 14a: Hollow 14d: Taper Surface (tapered plane) 14e: Curved surface 20: Lower split body 21: Lower end piece 22: Lower side piece 30: Waterproof hardware for bracket 31: Bracket insertion opening 40: Outer wall 41: Outer wall panel 42: Glass wool board (secondary waterproof panel), 43: Moisture-permeable waterproof sheet, 44: Ventilation layer (drainage route), 51: Inter-floor beam, 52: Vertical stiffener, 53: End plate, 54: Bracket, 60 : Primary water stop layer, 70: Secondary water stop layer, 80: Drainage layer, 90: Drain gutter, 100: Inter-floor waterproof structure, 200: Building, 201: Facade surface, 202, 203: Side surface, 204: Floor Intersection, 205: Canch room, 206: Canch balcony, 207: Continuous eaves

Claims (6)

A waterproof bracket for a bracket to be arranged around the base of the bracket in an inter-story part of a building,
an upper divided body having a top piece and left and right upper side pieces bent from the top piece and extending downward;
a lower divided body having a lower end piece and a lower side piece bent from the lower end piece and extending upward, and engaged with the upper divided body;
Two water stop materials are attached to the outer periphery of the upper divided body and are continuous over the left and right upper side pieces and the top piece,
The two water-stopping materials are a primary water-stopping material forming a primary water-stopping layer in a state in which the waterproof metal fitting for the arm is arranged around the base of the arm, and a primary water-stopping material forming a primary water-stopping layer, and one on the indoor side of the primary water-stopping layer. A waterproof metal fitting for a bracket, characterized by being a secondary water-stopping material that forms a secondary water-stopping layer in . 2. The waterproof metal fitting for a bracket according to claim 1, wherein said secondary water stop material has a tapered surface that rises while being inclined toward the interior of the room. 3. The waterproof metal fitting for a bracket according to claim 1, wherein said secondary water-stopping material is a resin-made water-stopping material having a triangular or substantially triangular cross-section and a hollow space. A plurality of the brackets are arranged at intervals in an inter-story part of a building, and the waterproof metal fittings for brackets according to any one of claims 1 to 3 are attached around the base of each of the brackets. ,
By contacting the end of the secondary water-stopping panel with the secondary water-stopping material, the secondary water-stopping layer is formed around the bracket between the floors of the building,
On the outdoor side of the secondary water cutoff layer, the primary water cutoff material is in contact with the outer wall panel, or the primary water cutoff material is arranged on the outdoor side of the outer wall panel, so that the floor of the building An inter-floor waterproof structure, characterized in that the primary waterproof layer is formed around the arm of the inter-floor. According to claim 4, the secondary water stop material has a tapered surface that rises while being inclined toward the interior of the room, and the end of the secondary water stop panel abuts against the tapered surface. Described inter-floor waterproof structure. Continuous eaves are arranged on the plurality of arms forming the inter-floor waterproof structure according to claim 4 or 5,
A building having continuous eaves, characterized in that a drain gutter extending in the extension direction of said continuous eaves is attached.

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