JP2023041142A - Building water penetration prevention structure - Google Patents

Abstract

To provide a building water penetration prevention structure capable of preventing water penetration into a building from waterproof sheets adhered to heat-insulating surface materials such as exterior wall insulation when flooding around the building due to inland flooding, and the like.SOLUTION: A building water penetration prevention structure 1 includes: a foundation 11 of a building; a base 12 fixed onto the foundation; multiple pillars 2 fixed onto the base 12; a crossbar 21 fixed to the outdoor side of base 12; multiple pieces of exterior wall insulation 31 placed on the crossbar 21 over the outdoor side of the multiple pillars 2; an indoor elastic adhesive sealant 41 applied from the bottom of the joint and exterior wall insulation 31 over the exterior face of the crossbar 21 between two pieces exterior wall insulation 31; multiple breathable waterproof sheets 32 applied to the outdoor surface of the exterior wall insulation 31 and crossbar 21 with the indoor elastic adhesive sealant 41; and an outdoor side elastic adhesive sealant 42 that is applied in an area from the joint between the breathable waterproof sheets 32 and the lower edge side of the breathable waterproof sheet 32 up to the outdoor surface of crossbar 21.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building flood prevention structure that can prevent water from entering a building due to flooding around the building.

Patent Literature 1 discloses a heat insulation structure for a building. This heat insulating structure of a building includes a perimeter foundation that supports a building and is provided upwardly from the ground, a foundation packing installed on the perimeter foundation, and a foundation installed on the foundation packing. A heat insulation structure comprising a base heat insulating material covering the outdoor side or indoor side of the outer peripheral foundation, and a base packing covering the outdoor side or indoor side of the base packing, straddling the outer peripheral foundation and the basic insulating material and a pressing member fixed to a side surface of the base on the outdoor side or the indoor side by a fixing member to press the packing insulating material toward the outer peripheral foundation and the basic insulating material. are doing.

JP 2018-165448 A

By the way, in the above-described building insulation structure, the vertical furring strips are fixed to the studs with nails or the like in a state in which the moisture-permeable waterproof sheet is sandwiched between the vertical furrings and the outdoor side surface of the outer wall heat insulating material. However, the moisture-permeable waterproof sheet is adhered to the outer wall heat insulating material in order to prevent rainwater from entering when it rains. It seems that it is not easy to control the flooding inside the building against the flooding around the building.

This invention provides a building flood prevention structure that can suppress water intrusion into a building from a waterproof sheet adhered to a heat insulating surface material such as an outer wall heat insulating material against flooding around the building due to inland water flooding. do.

The building flood control structure of this invention is
building foundations and
a foundation fixed on the foundation;
a plurality of pillars fixed on the base;
a plurality of heat-insulating surface materials arranged on the outdoor side of the plurality of pillars or between the pillars;
an indoor elastic adhesive sealant applied to the lateral edge side of the insulating facing and the lower side of the insulating facing;
a plurality of waterproof sheets affixed to the outdoor surface of the thermal insulation panel by the indoor elastic adhesive sealant;
an outdoor-side elastic adhesive sealant applied to the outdoor side of joints between adjacent waterproof sheets and the area of the lower edge side of the waterproof sheet;
characterized by comprising

With the above configuration, the indoor-side elastic adhesive sealant applied to the lateral edge side of the heat insulating surface material and the lower side of the heat insulating surface material seals the relevant locations and also attaches the waterproof sheet to the outside of the heat insulating surface material. The operation of attaching to the surface can be performed at the same time. Further, even if the waterproof sheet is torn, the sealed state by the indoor elastic adhesive sealant is maintained, thereby preventing water from entering the building. Furthermore, since the outdoor side elastic adhesive sealant is applied to the outdoor side of the joints between the adjacent waterproof sheets and the region on the lower edge side of the waterproof sheets, even if the joints of the adjacent waterproof sheets, etc. In the above, even if there is a defective portion in the adhesion of the waterproof sheet by the indoor elastic adhesive sealant, the defective portion can be properly overcoated and sealed with the outdoor elastic adhesive sealant. In addition, the indoor elastic adhesive sealant and the outdoor elastic adhesive sealant are made of the same material, which can avoid the inefficiency of preparing a large number of materials when using different kinds of materials, and , it is possible to reduce defects due to misuse.

The indoor side elastic adhesive sealant and the outdoor side elastic adhesive sealant are applied up to a predetermined height position, which is an assumed flood height, and even if the height above the predetermined height is waterproofed against rain good. According to this, it is possible to prevent excessive use of the indoor-side elastic adhesive sealant or the like.

In the above building flood control structure,
A crossbar is fixed on the outdoor side of the above foundation,
The heat insulating surface material is an outer wall heat insulating material arranged on the cross beam over the outdoor side of the plurality of pillars,
The indoor side elastic adhesive sealant is also applied over the outdoor surface of the horizontal beam,
The waterproof sheet may also be attached to the outdoor surface of the horizontal beam.

In the above building flood control structure,
A vertical furring strip arranged on the outdoor side of the waterproof sheet;
an adhesive waterproof layer portion positioned between the vertical furring strip and the waterproof sheet;
a screw for penetrating the vertical furring strip, the adhesive waterproof layer portion, and the waterproof sheet and fixing the vertical furring strip to the base and the pillar;
may be provided. According to this, it is possible to suppress the infiltration of water from the gap between the surface of the screw and the hole formed by the screw with the adhesive waterproof layer adhered to the surface of the screw.

Alternatively, in the building flood prevention structure,
an outer wall fastener arranged on the outdoor side of the waterproof sheet;
an adhesive waterproof layer portion positioned between the outer wall fastener and the waterproof sheet;
screws for penetrating the outer wall fastener, the adhesive waterproof layer portion, and the waterproof sheet and fixing the outer wall fastener to the base and the pillar;
may be provided.

A lower region of the outdoor elastic adhesive sealant may be applied extending to the top of the foundation. According to this, even if there is a portion that is not properly sealed in the affixing of the indoor-side elastic adhesive sealant to the horizontal beam of the waterproof sheet, the infiltration of water from that portion is prevented from occurring in the roof. It can be restrained by the lower region of the outer elastic adhesive sealant. In addition, the lower area can also prevent water from entering along the route from the lower surface of the horizontal beam to the base.

A lower area of the exterior elastic adhesive sealant applied extending to the top of the foundation may be covered with a foundation flasher. According to this, it is possible to avoid deterioration of the aesthetic appearance of the building in the lower region of the outdoor side elastic adhesive sealant.

According to the present invention, it is possible to suppress water intrusion into the building from the part of the waterproof sheet adhered to the heat insulating surface material such as the outer wall heat insulating material, even when the building surroundings are flooded due to inland water flooding. Effective.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which showed the building submersion deterrent structure of embodiment, Comprising: The figure (A) is a schematic vertical sectional view, and the figure (B) is a schematic horizontal sectional view. 1. It is the perspective view which showed the manufacturing process of the exterior corner part of the building which has the building flood prevention structure of FIG. FIG. 3 is a perspective view showing a post-process of FIG. 2; 4 is a perspective view showing a post-process of FIG. 3; FIG. FIG. 5 is a perspective view showing a post-process of FIG. 4; FIG. 6 is a perspective view showing a post-process of FIG. 5; FIG. 7 is a perspective view showing a post-process of FIG. 6; FIG. 8 is a perspective view showing a post-process of FIG. 7; FIG. 9 is a perspective view showing a post-process of FIG. 8; FIG. 10 is a perspective view showing a post-process of FIG. 9; FIG. 11 is a perspective view showing a post-process of FIG. 10; FIG. 12 is a perspective view showing a post-process of FIG. 11; FIG. 13 is a perspective view showing a post-process of FIG. 12; FIG. 14 is a perspective view showing a post-process of FIG. 13; FIG. 15 is a perspective view showing a post-process of FIG. 14; It is a diagram showing a building submersion deterrent structure of another embodiment, and is a schematic horizontal cross-sectional view of a structure that supports an exterior wall surface material without using vertical furring strips.

An embodiment according to one aspect of the present invention will be described below with reference to the accompanying drawings.
FIG. 1(A) shows a schematic vertical cross section of an external corner of a building having a building flood control structure 1 according to an embodiment, and FIG. 1(B) shows a schematic horizontal cross section of the external corner. ing. In these drawings, the thickness of the members, the distance between the members, and the like may differ from the actual ones in order to make the member configuration easier to understand.

A building flood prevention structure 1 has a foundation 11 and a foundation 12 made of wood fixed on the foundation 11 . A plurality of rows of water stop materials 13 are provided between the top end of the foundation 11 and the base 12, and a moisture-proof sheet 14 is placed on the water stop material 13 so as to cover the top end of the foundation 11. is laid. The moisture-proof sheet 14 and the water-stopping material 13 are mainly for preventing moisture from the concrete of the foundation 11 from moving to the base 12, and the water-stopping property against flooding is not so high. Note that the top end of the foundation 11 may be made of a leveler.

A plurality of pillars 2 are fixed on the base 12 at predetermined intervals. A stud 2A is provided between the pillars 2, and a heat insulating material such as glass wool is provided between the pillar 2 and the stud 2A. A horizontal beam 21 made of wood is arranged on the top of the base 11 on the outdoor side of the base 12, and the horizontal beam 21 is fixed to the base 12 with screws or the like. Further, a wall plywood packing 22 is fixed to the outdoor side surface of the pillar 2 with screws or the like.

On the outdoor side of the pillar 2 (in this embodiment, the outdoor side of the wall plywood packing 22), a plurality of outer wall heat insulating materials (for example, product name Styrofoam: 30 mm thick) 31 is placed. The outer wall heat insulating materials 31 are arranged side by side on the horizontal rails 21 over the outdoor side of the plurality of pillars 2 .

The indoor side elastic bonding is performed so as to block the outdoor side of the joint (horizontal edge side) between the laterally adjacent outer wall heat insulating materials 31 and to extend from the outdoor surface of the lower part of the outer wall heat insulating material 31 to the outdoor surface of the horizontal beam 21. A sealing agent 41 is applied. The indoor-side elastic adhesive sealant 41 functions as an amorphous waterproofing agent, has adhesiveness, and has a certain elasticity even after drying. As the indoor side elastic adhesive sealant 41, for example, a one-component modified silicone resin elastic adhesive (MPX-1 manufactured by Konishi Co., Ltd., etc.), or adhesiveness and elasticity (elasticity) equivalent to this elastic adhesive may be used. A caulking agent or the like having a recovery rate) can be used.

Then, with the indoor elastic adhesive sealant 41 applied as described above, a plurality of moisture-permeable waterproof sheets (sometimes simply referred to as waterproof sheets) are formed on the exterior surfaces of the outer wall heat insulating material 31 and the lateral beams 21 . 32 is pasted. That is, the lower part of the moisture-permeable waterproof sheet 32 is adhered from the lower part of the outer wall heat insulating material 31 to the cross beam 21 by the indoor elastic adhesive sealant 41 . Also, the left and right edges of the moisture-permeable waterproof sheets 32 adjacent to each other are somewhat overlapped and in contact with each other. The moisture-permeable waterproof sheet 32 is adhered to the outer wall heat insulating material 31 with an indoor-side elastic adhesive sealant 41 within a predetermined height range. The predetermined height is the expected flood height, and is, for example, 800 mm or less from the ground level. The outdoor-side elastic adhesive sealing agent 42, which will be described later, may also be applied up to the predetermined height position, and at a height exceeding the predetermined height, general waterproofing against rain may be applied.

An outdoor elastic adhesive sealing agent 42 is applied to the outdoor side of the joints between the laterally adjacent moisture-permeable waterproof sheets 32 and to the area from the lower edge side of the moisture-permeable waterproof sheet 32 to the outdoor surface of the crossbar 21. . As the outdoor side elastic adhesive sealant 42, for example, a one-component modified silicone resin elastic adhesive (MPX-1 manufactured by Konishi Co., Ltd., etc.), or adhesiveness and elasticity (elasticity) equivalent to this elastic adhesive may be used. A caulking agent or the like having a recovery rate) can be used. The indoor side elastic adhesive sealing agent 41 and the outdoor side elastic adhesive sealing agent 42 do not need to be the same product from the same manufacturer, but they should be of the same kind to the extent that they may be mixed and used. The indoor elastic adhesive sealing agent 41 and the outdoor elastic adhesive sealing agent 42 preferably have a 50% modulus value of 0.2 N/mm ² or less (low modulus).

A waterproof sheet 32A is attached instead of the moisture-permeable waterproof sheet 32 to the exterior surface of the outer wall heat insulating material 31 positioned at the external corner.

Vertical furring strips (vertical furring strips) 34 are arranged on the outdoor side of the waterproof sheets 32 and 32A, and each vertical furring strip 34 is fixed to the base 12 and the pillar 2 with screws 51 . The lower end of the vertical furring strip 34 is positioned below the lower end of the outer wall heat insulating material 31 . Between the vertical furring strip 34 and the waterproof sheets 32, 32A, an adhesive waterproof layer portion (for example, a self-bonding tape (butyl rubber tape, etc.)) 33 having adhesiveness and waterproof properties is arranged. The lower end of the adhesive waterproof layer portion 33 is positioned below the lower end of the outer wall heat insulating material 31 . The tip side of the screw 51 penetrates the vertical furring strip 34 , the adhesive waterproof layer portion 33 , the moisture permeable waterproof sheet 32 and the outer wall heat insulating material 31 to reach the base 12 . A support metal fitting (not shown) is fixed to the vertical furring strip 34, and the outer wall surface member 35 is supported by this support metal fitting.

The lower region of the outdoor elastic adhesive sealant 42 is extended to the top end side of the foundation 11 and further extended to the upper side of the raised surface on the outdoor side of the foundation 11 and applied. Then, the extendedly applied outdoor elastic adhesive sealant 42 (lower region) is covered with the base drainer 5 . The base drainer 5 is fixed to the horizontal beam 21 with screws.

That is, the building flood prevention structure of this embodiment is
a building foundation 11;
a foundation 12 fixed on the foundation 11;
a plurality of pillars 2 fixed on the base 12;
a horizontal beam 21 fixed to the outdoor side of the base 12;
a plurality of outer wall heat insulating materials 31 arranged on the horizontal rails 21 over the outdoor side of the plurality of pillars 2;
an indoor-side elastic adhesive sealant 41 applied over the joints between adjacent outer wall heat insulating materials 31 and from the lower part of the outer wall heat insulating materials 31 to the outdoor surface of the horizontal beam 21;
a plurality of waterproof sheets 32, 32A affixed to the outdoor surface of the outer wall heat insulating material 31 and the horizontal beam 21 by the indoor elastic adhesive sealant 41;
an outdoor-side elastic adhesive sealant 42 applied to the outdoor side of joints between the adjacent waterproof sheets 32, 32A and to the area from the lower edge side of the waterproof sheets 32, 32A to the outdoor surface of the horizontal beam 21; Prepare.

With the above configuration, the joints between the adjacent outer wall heat insulating materials 31 and the joints between the outer wall heat insulating materials 31 and the cross beams 21 are sealed by the indoor side elastic adhesive sealant 41, and the waterproof sheet 32 , 32A to the outdoor surface of the outer wall heat insulating material 31 can be performed simultaneously. Further, even if the moisture-permeable waterproof sheet 32 is torn, the sealed state by the indoor-side elastic adhesive sealing agent 41 is maintained, so that water infiltration into the building is suppressed. Furthermore, an outdoor elastic adhesive sealant is applied to the outdoor side of the joints between the adjacent moisture-permeable waterproof sheets 32 and the waterproof sheet 32A, and to the area from the lower edge side of the waterproof sheets 32 and 32A to the outdoor surface of the crossbar 21. 42 is applied, even if there is a defective adhesive sealing portion of the indoor side elastic adhesive sealant 41 at the joint of the adjacent moisture permeable waterproof sheets 32 or the waterproof sheet 32A, this defective portion can be removed. It can be overcoated properly with an outdoor elastic adhesive sealant 42 . The indoor side elastic adhesive sealing agent 41 and the outdoor side elastic adhesive sealing agent 42 are made of the same kind of material. , it is possible to reduce defects due to misuse.

The indoor-side elastic adhesive sealing agent 41 and the outdoor-side elastic adhesive sealing agent 42 are applied up to a predetermined height position, which is an assumed flooding height, and the height above the predetermined height is waterproofed against rain. As a result, excessive use of the indoor elastic adhesive sealing agent 41 and the like can be prevented by avoiding excessive flooding countermeasures.

The vertical furring strip 34 is fixed to the base 12 with a screw 51 penetrating through the vertical furring strip 34 , the adhesive waterproof layer portion 33 , the waterproof sheets 32 and 32</b>A, and the outer wall heat insulating material 31 . As a result, the intrusion of water through the gap between the surface of the screw 51 and the hole formed by the screw 51 is suppressed by the adhesive waterproof layer 33 sticking to the surface of the screw 51 .

If the lower area of the outdoor elastic adhesive sealant 42 is applied extending to the top of the foundation 11, there will be places where the waterproof sheets 32 and 32A are not properly sealed when they are attached to the crosspieces 21. Even so, the lower region of the outdoor-side elastic adhesive sealant 42 can suppress the infiltration of water from that portion. In addition, the lower area can also prevent water from entering along the route from the lower surface of the horizontal beam 21 to the base 12 side. The top of the foundation 11 may be coated with a silicone agent or the like that is different from the outdoor elastic adhesive sealant 42 and has no particular adhesiveness. By coating, it is possible to avoid the inefficiency of preparing a large number of materials, and it is possible to reduce defects due to misuse.

When the lower area of the outdoor elastic adhesive sealant 42 applied extending to the top of the foundation 11 is covered with the base drain 5, the lower area of the outdoor elastic adhesive sealant 42 degrades the appearance of the building. can be avoided.

When the top of the foundation 11 is formed by a leveler, it is desirable that the lower area of the outdoor elastic adhesive sealant 42 is also extended and applied to the outdoor raised surface (leveler side) of the foundation 11. Since the leveler has a higher water-cement ratio and is less dense than the concrete of the foundation 11, there is a risk of flooding due to permeation of the leveler, which can be prevented by the lower region.

2 to 15, a method for manufacturing an external corner of a building having the building flood prevention structure 1 will be described. Note that these figures show an experimental building flood prevention structure built in a water tank to evaluate the flood resistance performance.

As shown in FIG. 2, a foundation 11 is prepared, a water-stopping material 13 is applied to the top of the foundation 11, and a moisture-proof sheet 14 is laid on the water-stopping material 13. As shown in FIG.

As shown in FIG. 3, the base 12 is placed on the moisture-proof sheet 14, and the base 12 is fixed to the base 11 using anchor bolts 11a and nuts (not shown). Also, a pillar 2 is erected on the base 12 .

As shown in FIG. 4, a horizontal beam 21 made of wood is placed on the top of the foundation 11 on the outdoor side of the base 12, and the horizontal beam 21 is fixed to the base 12 with screws or the like. Further, between the pillars 2, studs 2A are erected on the foundation 12. - 特許庁Furthermore, the wall plywood packing 22 is fixed with screws or the like to the outdoor side surfaces of the pillars 2 and the studs 2A.

As shown in FIG. 5 , a plurality of outer wall heat insulating materials 31 are arranged side by side on the crosspiece 21 outside the wall plywood packing 22 . The outer wall heat insulating material 31 is temporarily fixed to the outdoor surface of the wall plywood packing 22 with nails or the like, for example.

As shown in FIG. 6, the indoor elastic adhesive sealant 41 is applied to the joints between the laterally adjacent outer wall heat insulating materials 31 and to the portion extending from the lower part of the outer wall heat insulating material 31 to the outdoor surface of the horizontal beam 21 .

As shown in FIG. 7, the adhered indoor side elastic adhesive sealant 41 is spread using a spatula or the like.

As shown in FIG. 8, the moisture-permeable waterproof sheet 32 is adhered to the outer wall heat insulating material 31 and the outdoor surface of the cross beam 21 with an indoor-side elastic adhesive sealant 41 .

As shown in FIG. 9, the waterproof sheet 32A is attached to the outdoor surface of the exterior wall heat insulating material 31 located at the external corner using the indoor elastic adhesive sealant 41. As shown in FIG. In order to bond the edges of the waterproof sheet 32A and the moisture permeable waterproof sheet 32, the indoor side elastic adhesive sealing agent 41 may be spread on the edge side of the moisture permeable waterproof sheet 32. FIG.

As shown in FIG. 10, the outdoor elastic adhesive sealant 42 is applied from the outdoor side of the junction between the laterally adjacent waterproof sheets 32 and 32A and from the lower edge side of the waterproof sheets 32 and 32A to the outdoor surface of the crossbar 21. adhere to the area.

As shown in FIG. 11, the adhered outdoor elastic adhesive sealant 42 is spread using a spatula or the like. At this time, the lower region of the outdoor-side elastic adhesive sealant 42 is extended to the top end of the foundation 11 and further spread over the upper side of the raised surface on the outdoor side of the foundation 11 .

As shown in FIG. 12, the base drainer 5 is fixed to the horizontal beam 21 with screws. The base drain 5 covers the extendedly applied outdoor elastic adhesive sealant 42 (lower region).

As shown in FIG. 13, the adhesive waterproof layer portion 33 is attached to a portion (a portion through which a screw is inserted) where the vertical furring strip 34 on the outdoor side of the moisture-permeable waterproof sheet 32 is arranged.

As shown in FIG. 14, vertical furring strips 34 are placed on the adhesive waterproof layer 33, and each vertical furring strip 34 is fixed to the base 12 and the pillar 2 with screws 51 (see FIG. 1). For the sake of convenience, the vertical furring strips 34 are shown to have the predetermined height, but originally the height corresponds to the height of the outer wall. Also, the height of the adhesive waterproof layer portion 33 may be increased according to the height of the vertical furring strip 34 .

As shown in FIG. 15, the outer wall panel 35 is fixed to the longitudinal furring strip 34 . A support metal fitting (not shown) is fixed to the vertical furring strip 34, and the outer wall surface member 35 is supported by this support metal fitting. In addition, in the structure having the support metal fitting, the screw 51 is also provided through the support metal fitting.

FIG. 16 shows, as another embodiment, a building inundation deterring structure in which the outer wall surface material is directly supported by outer wall fasteners 55 which are supporting metal fittings without providing vertical furring strips. This structure includes an outer wall fastener 55 arranged on the outdoor side of the waterproof sheets 32, 32A, an adhesive waterproof layer portion 33 positioned between the outer wall fastener 55 and the waterproof sheets 32, 32A, a screw 51 for fixing the outer wall fastener 55 to the base 12 and the pillar 2 through the outer wall fastener 55, the adhesive waterproof layer portion 33, the waterproof sheets 32 and 32A, and the outer wall heat insulating material 31; , provided.

Note that the outer wall fastener 55 may be a general metal fitting. Also, the joiner 56 can be attached to the structure provided with the outer wall fastener 55 described above. The legs of this joiner 56 are placed on the outdoor side of the outdoor elastic adhesive sealant 42 . Also, in the structure shown in FIG. 1, a structure in which a joiner is arranged on the outdoor side surface of the vertical furring strip 34 can be employed.

Further, the building flood prevention structure of the present invention is not limited to the one provided with the outer wall heat insulating material (outer heat insulating material) 31 . It can also be applied to a structure in which a heat insulating surface material is arranged between columns instead of the outer wall heat insulating material 31 . In such a structure, the crossbar 21 is not required. Also, the indoor side elastic adhesive sealant 41 is applied to the joint portion between the lateral edges of the pillar and the heat insulating surface material.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope.

1: Building flood control structure 2: Column 2A: Studs 3: Outer wall 5: Base drain 11: Foundation 11a: Anchor bolt 12: Base 13: Water stop material 14: Moisture-proof sheet 21: Horizontal beam 22: Wall plywood packing 31: Exterior wall insulation (insulation surface material)
32: Moisture-permeable waterproof sheet 32A: Waterproof sheet 33: Adhesive waterproof layer portion 34: Vertical furring strip 35: Exterior wall surface material 41: Indoor elastic adhesive sealant 42: Outdoor elastic adhesive sealant 51: Screws 55: External wall Fastener 56: Joiner

Claims (7)

building foundations and
a foundation fixed on the foundation;
a plurality of pillars fixed on the base;
a plurality of heat-insulating surface materials arranged on the outdoor side of the plurality of pillars or between the pillars;
an indoor elastic adhesive sealant applied to the lateral edge side of the insulating facing and the lower side of the insulating facing;
a plurality of waterproof sheets affixed to the outdoor surface of the thermal insulation panel by the indoor elastic adhesive sealant;
an outdoor-side elastic adhesive sealant applied to the outdoor side of joints between adjacent waterproof sheets and the area of the lower edge side of the waterproof sheet;
A building flood prevention structure characterized by comprising: In the building flood prevention structure according to claim 1, the indoor elastic adhesive sealant and the outdoor elastic adhesive sealant are applied up to a predetermined height position, which is an assumed flood height, and exceeds the predetermined height. A building inundation deterrent structure characterized by being waterproofed against rain at a height. In the building flood control structure according to claim 1 or claim 2,
A crossbar is fixed on the outdoor side of the above foundation,
The heat insulating surface material is an outer wall heat insulating material arranged on the cross beam over the outdoor side of the plurality of pillars,
The indoor side elastic adhesive sealant is also applied over the outdoor surface of the horizontal beam,
The building flood prevention structure is characterized in that the waterproof sheet is also attached to the outdoor surface of the cross beam. In the building flood control structure according to any one of claims 1 to 3,
A vertical furring strip arranged on the outdoor side of the waterproof sheet;
an adhesive waterproof layer portion positioned between the vertical furring strip and the waterproof sheet;
a screw for penetrating the vertical furring strip, the adhesive waterproof layer portion, and the waterproof sheet and fixing the vertical furring strip to the base and the pillar;
A building flood prevention structure characterized by comprising: In the building flood prevention structure according to any one of claims 1 to 3,
an outer wall fastener arranged on the outdoor side of the waterproof sheet;
an adhesive waterproof layer portion positioned between the outer wall fastener and the waterproof sheet;
screws for penetrating the outer wall fastener, the adhesive waterproof layer portion, and the waterproof sheet and fixing the outer wall fastener to the base and the pillar;
A building flood prevention structure characterized by comprising: In the building flood control structure according to any one of claims 1 to 5, the lower region of the outdoor elastic adhesive sealant is applied extending to the top of the foundation. Building inundation deterrence structure. 7. The building flood prevention structure according to claim 6, wherein a lower area of said outdoor elastic adhesive sealant applied to extend to the top of said foundation is covered with a foundation drain. .

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