JPH09228495A - Waterproof structure of unit dwelling house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To waterproof each unit with a waterproof sheet, joint the waterproof sheets of the neighboring units and make waterproofness by the waterproof sheet integrating the outer wall of the whole of a house in a unit dwelling house for assembling and constituting a plurality of units. SOLUTION: Waterproof sheets 4a, 4b are stuck to the whole face between the outmost outer walls 1a, 1b of units A, B and room side inner faces 2a, 2b except for an opening part such as a window. The end parts of the waterproof sheets are stretched in the right and left directions of the units, in the upper or the lower direction, and a stretching part is constituted. A pressure sensitive adhesive double coated tape 5, a winding member, a thermoplastic resin or the like is attached or applied, and the waterproof sheets 4a, 4b of the neighboring units A, B are overlapped and jointed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for a unit house in which a plurality of units forming a part of a house are combined.

[0002]

2. Description of the Related Art There is a unit house in which a plurality of units constituting a part of a house are combined two-dimensionally or three-dimensionally and adjacent units are connected to each other. In this unit house, it is necessary to waterproof the gap (joint portion) formed between adjacent units.

As a method for waterproofing the joint portion formed between the units, a wet waterproofing method in which the joint portion is caulked and filled, and a dry method in which a joint material made of an elastic material such as synthetic rubber or synthetic resin is inserted and filled. There are waterproof methods, and these methods are selectively implemented.

[0004]

In the wet waterproofing method by caulking, it takes time and labor for on-site construction, and the waterproof performance depends on the skill of the worker, so that the performance may vary. Also, in the dry waterproof method consisting of an elastic body, it is difficult to obtain the designed waterproof performance when the joints formed between the units vary in size, and the elastic body is constantly exposed to sunlight. Since it is used in an exposed environment, it has a problem of deterioration and has a problem of poor reliability.

On the other hand, in a house constructed by the conventional construction method, a waterproof method using a waterproof sheet may be adopted. However, when this method is applied to a unit house, there is a problem of how to seal the waterproof sheets of adjacent units to each other.

An object of the present invention is to provide a waterproof structure for a unit house in which each unit is waterproofed by using a waterproof sheet and the waterproof sheet of each unit is connected.

[0007]

In order to solve the above problems, a waterproof structure for a unit house according to the present invention is characterized in that the entire inner surface of the outer wall of each unit constituting the unit house is covered with a waterproof sheet. To do.

In the above-mentioned waterproof structure, since the entire inner surface of the outer wall of each unit constituting the unit house is covered with the waterproof sheet, each unit can exhibit sufficient waterproof performance.

Further, another waterproof structure according to the present invention is a flat surface formed between an outer wall of a unit and an inner wall of a room in a unit house, and a waterproof sheet is attached over the entire area except an opening, and the left, right, upper and lower sides are attached. The end portions of the waterproof sheets attached to the units adjacent to each other are continuously joined to each other, and the entire wall surface of the house is covered with the integrated waterproof sheet.

In the above-mentioned waterproof structure, a waterproof sheet is affixed over the entire area except the openings such as windows and entrances in a plane formed between the outer wall of the unit and the inner wall of the room. By joining the ends of the waterproof sheets of adjacent units to each other, the entire wall surface can be covered with the integrated waterproof sheet. Therefore, waterproofing can be performed with high reliability by waterproofing the entire wall surface of the house with the waterproof sheet.

In the above waterproof structure, the end portions of the waterproof sheet are projected from the outer wall surface of each unit, and the end portions of the waterproof sheets of the adjacent units are overlapped with each other, or the winding member is wound around the end portions of the waterproof sheet. The adjacent waterproof sheets are wound on the winding member so that the ends of the waterproof sheets are overlapped with each other, and a thermoplastic resin is applied to the ends of the waterproof sheets so that the adjacent waterproof sheets are melted by heat. It is preferable that the end portions of the waterproof sheet are put on and overlapped.

When the waterproof sheets of the adjacent units are joined, the end portions of the waterproof sheets may be projected from the outer wall surface of the unit, and the end portions of the respective waterproof sheets may be overlapped with each other. In particular, by providing a winding member at the end of the waterproof sheet, the adjacent waterproof sheets can be overlapped while being rolled up, or by applying a thermoplastic resin, the adjacent waterproof sheets are heat-sealed and overlapped. Can be matched.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the waterproof structure for a unit house will be described below with reference to the drawings. FIG. 1 is an explanatory diagram when a unit house is constructed by connecting vertically and horizontally units whose outer walls are covered with a waterproof sheet, and FIG. 2 is a diagram illustrating a state in which adjacent units are connected to each other.
FIG. 3 is a perspective view of a unit house formed by combining a plurality of units, and is a view in which an outer wall is omitted for convenience, and FIG. 4 is a case where end portions of waterproof sheets of adjacent units are overlapped and joined 7 is a diagram for explaining a procedure for winding the waterproof sheet by providing a winding member at an end portion of the waterproof sheet, and FIG. 6 is a diagram for explaining a procedure for heat-sealing and joining the waterproof sheet. FIG. 9 is a diagram illustrating another example of the method of FIG. 4.

First, a first embodiment of the present invention will be described with reference to FIGS. In the figure, each unit A ~
C (hereinafter, the units A and B will be described as a representative)
Waterproof sheets 4a and 4b are attached to the entire surfaces between the outermost walls 1a and 1b and the room side inner walls 2a and 2b except the openings 3a and 3b such as windows and doorways.

As the waterproof sheets 4a and 4b, any sheet having waterproofness and flexibility can be used. For example, polyester woven cloth is coated with resin to have windproofness and moisture permeability. It is preferable to use a sheet.

The units A and B are waterproof sheets 4a and 4b.
After being assembled at the factory stage including the construction of the above, brought into the construction site and placed at a predetermined position, the adjacent units (A, B) are connected to each other, and at the same time, the waterproof sheets (4a, 4b) are also connected to each other. To be joined. Thus, by connecting the adjacent units A and B and joining the respective waterproof sheets 4a and 4b to each other, an integrated waterproof sheet is formed between the outermost wall of the unit house and the room-side inner wall. By doing so, it is possible to cover the entire house, and to make it waterproof.

When connecting the adjacent waterproof sheets 4a and 4b, there are various methods as will be described later including this embodiment. However, in any case, each waterproof sheet 4
Since the a and 4b are superposed and joined together, the waterproof sheet of each unit is attached so that the end portions thereof protrude laterally and upward or downward depending on the joining method and the arrangement position of the unit. Units A and B that make up the first floor
Left and right overhanging portions 4a1, 4a2, 4b1, 4b2 and upward overhanging portions 4a3, 4b3 are formed in each of them. Also 2
The unit C constituting the floor portion is formed with laterally extending portions 4c1 and 4c2 and a downwardly extending portion 4c4, respectively.

In the first embodiment, as shown in FIG.
The left and right ends of the waterproof sheets 4a and 4b in the units A and B are extended to form the extended portions 4a1 and 4b1 extending over the entire length in the height direction, and the other ends are not extended and are the maximum. It is formed so as to be substantially equal to the end portions of the outer walls 1a and 2a. Then, for example, the double-sided adhesive tape 5 is adhered to the overhanging portion 4b1 of the waterproof sheet 4b of the unit B,
Simultaneously with connecting the units A and B, the projecting portions 4b1 are inserted into the opposite ends of the unit A, and the waterproof sheet 4a of the unit A is superposed and joined.

In FIG. 2, outer wall materials such as ALC plates and siding can be used as the outermost walls 1a and 1b, and structural plywood can be used as the room inner walls 2a and 2b. Is. Furthermore, the room side inner walls 2a, 2
Pillars or vertical frame members 6a and 6b are provided inside b. After connecting the units A and B to each other, the vertical frame members 6a and 6b are covered with an inner wall member 7a made of gypsum board or the like.
7b is attached, and the joint portion formed between the outermost walls 1a and 1b is closed by a sealing material 8.

A backup material 9 is arranged at the connecting portion between the units A and B, and the backup material 9 protects the joint portions of the waterproof sheets 4a and 4b. The backup material 9 is formed of a material such as synthetic resin, synthetic rubber or metal, and is fixed to the vertical frame members 6a and 6b.

As described above, the adjacent units are connected to each other, and the protruding portion (4) of the waterproof sheet 4 of each unit is connected.
By overlapping and joining (b1, 4c4) the waterproof sheet 4 of the adjacent unit, as shown in FIG. 3, the entire house can be covered with the integrated waterproof sheet 4.

Next, the procedure for implementing the first embodiment will be described with reference to FIG. As shown in FIG. 4A, the free end of the waterproof sheet 4a of the unit A is fixed in advance in a state of being bent to the vertical frame member 6a side by a protective metal 10 that protects the end portion of the outermost wall 1a, The protruding portion 4b1 of the waterproof sheet 4b of the unit B is adhered to the vertical frame member 6b with an adhesive tape 11 in a state of being bent toward the vertical frame member 6b.

The units A and B are carried into a construction site, arranged at predetermined positions, and connected to each other via a unit (not shown). At this time, as shown in FIG. 2B, the protective metal article 10 for protecting the end portion of the outermost wall 1a forming the unit A is removed. After connecting the units A and B,
The protruding portion 4b1 of the waterproof sheet 4b of the unit B is attached to the vertical frame member 6b.
It is peeled off and adhered to the waterproof sheet 4a of the unit A with the adhesive tape 5.

Next, as shown in FIG. 3C, a backup material 9 is arranged at the bonding portion of the waterproof sheets 4a and 4b of the units A and B to protect the waterproof sheets 4a and 4b and to protect the vertical frame members. It adheres to 6a and 6b. After that, the joint portion is closed by the sealing material 8 and the inner wall materials 7a and 7b are closed.
The gap formed between the two is connected by an inner wall material 12 such as a gypsum board.

Next, a second embodiment will be described with reference to FIG. In the figure, the same parts as those described in the first embodiment and parts having the same functions are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, the waterproof sheets 4a and 4b attached to the respective units A and B are formed with overhanging portions 4a1 to 4a3 and 4b1 to 4b3 in the left and right directions and in the upward direction, respectively. A pair of halves 13a and 13b constituting the winding member 13 are attached to the portions 4a1 to 4a3 and 4b1 to 4b3. After connecting the units A and B, the half bodies 13a and 13b are joined to each other to form a winding member 13, and the projecting portions 4a2 and 4b1 projecting from the facing portions of the units A and B to the member 13.
By winding up, the waterproof sheets 4a and 4b are joined and integrated.

The winding member 13 is provided over the entire length in the height direction of the waterproof sheets 4a and 4b.
It is formed to have a circular outer shape so that the projecting portions 4a2 and 4b1 of 4b can be smoothly wound in a state of being overlapped with each other. For this reason, each of the half bodies 13a and 13b is formed in a long semi-cylindrical shape, and projections and grooves that can be fitted to each other are formed on the opposing surfaces.

Therefore, as shown in FIG. 4A, the units A and B are arranged at predetermined positions and connected to each other, and the protruding portions 4a2 and 4b1 of the waterproof sheets 4a and 4b facing each other are arranged.
And pull out each half body 13a, 13a as shown in FIG.
b is integrated to form the winding member 13, and the winding member 13
The waterproof sheets 4a and 4b are joined together by winding the overhanging portions 4a2 and 4b1.

After winding the overhanging portions 4a2 and 4b1 of the waterproof sheets 4a and 4b by the winding member 13 as described above, the waterproof sheets 4a and 4b are accommodated in joints formed between the units A and B, and the joints are formed. The part is closed by a sealing material 8 and a backup material 9 is arranged on the room side for protection. After that, the gap formed between the inner wall members 7a and 7b provided on the room side is connected by the same inner wall member 12.

In the present embodiment, each of the waterproof sheets 4a and 4b.
It is possible to join the overhanging parts 4a2 and 4b1 without adhering. Since the winding member 13 is wound with the rotation, it is possible to join the waterproof sheets 4a and 4b in a state in which a desired tension is applied.

The half bodies 13a and 13b constituting the winding member 13 are
The shape of the waterproof sheet 4a, is not particularly limited.
Other shapes may be used as long as 4b can be smoothly wound up and can be easily engaged with each other to be integrated.

Next, a third embodiment will be described with reference to FIG. In the drawings, the same or similar parts as those of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In this embodiment, overhangs 4a1-4a3 and 4b1-4b3 are formed in the left and right directions and the upside of the waterproof sheets 4a, 4b attached to the units A, B, respectively. Thermoplastic resins 14a, 14b are previously applied to one surface of each of the portions 4a1-4a3, 4b1-4b3.

Then, as shown in FIG. 4A, after the units A and B are arranged at predetermined positions and connected to each other, a backup material 9 is arranged at a position corresponding to the joint portion and the vertical frame members 6a, Fixed to 6b, the overhanging portion 4 of the waterproof sheet 4a, 4b
a2 and 4b1 are overlapped with the coating surfaces of the thermoplastic resins 14a and 14b facing each other, and the portions coated with the thermoplastic resins 14a and 14b are heated by the heater 15 to melt and fuse the resins. Waterproof sheet 4a, 4 forming the fusion layer 14
b is joined.

After that, as shown in FIG. 3B, the joint portion formed between the units A and B is closed by the sealing material 8 and the inner wall materials 7a and 7 provided on the room side are closed.
The gap between b is closed by the inner wall material 12.

Next, a fourth embodiment will be described with reference to FIG. In the drawings, the same or similar parts as those of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 3A, each unit A,
Notches 16 are formed at the ends of the outermost walls 1a and 1b constituting B, respectively.
a and 16b are formed. The protruding portion 4a2 of the waterproof sheet 4a is accommodated in the cutout portion 16a of the unit A in a state of being wound around the winding core 17, and the waterproof sheet 4b having the adhesive tape 5 attached to the cutout portion 16b of the unit B. The ends of are arranged. The units A and B are arranged at predetermined positions and connected to each other.

After connecting the units A and B, as shown in FIG. 7B, a backup material 9 is arranged corresponding to the joint and fixed to the vertical frame members 6a and 6b, and this state is maintained. Then, the winding core 17 is rotated from the notch 16a of the unit A and the waterproof sheet 4a is pulled out while being rewound.

Then, as shown in FIG.
17 is inserted into the notch 16b of the unit B, and in this process, the adhesive tape 5 attached to the waterproof sheet 4b is adhered to join the waterproof sheets 4a and 4b. After that, the joint is closed by the sealing material 8 and the inner wall material 12 is attached to the gap between the inner wall materials 7a and 7b on the room side, whereby the work is completed.

[0040]

As described in detail above, in the waterproof structure for a unit house according to the present invention, since the entire inner surface of the outer wall of each unit forming the unit house is covered with the waterproof sheet, the waterproof performance is highly reliable. Can be obtained.

Further, by continuously joining the ends of the waterproof sheets of the units that are adjacent to each other vertically and vertically, the entire wall surface of the outermost wall of the house except the opening can be covered with the integrated waterproof sheet. Therefore, highly reliable waterproof performance can be obtained.

In particular, when the waterproof sheets are joined together, the adjacent waterproof sheets are overlapped with each other, so that even if the gap size between the units varies.
This variation can be absorbed, and the variation is not adversely affected unlike the conventional dry joint material.

Further, since the waterproof structure according to the present invention is substantially a dry structure, compared to the conventional wet structure using a caulking material, the variation in performance due to the skill of the worker is eliminated and a certain waterproof performance is obtained. It has the characteristics that it can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view when a unit house is constructed by vertically and horizontally connecting units whose outer walls are covered with a waterproof sheet.

FIG. 2 is a diagram illustrating a state in which adjacent units are connected to each other.

FIG. 3 is a perspective view of a unit house configured by combining a plurality of units, and is a view expressed by omitting an outer wall for convenience.

FIG. 4 is a diagram illustrating a procedure for overlapping and joining end portions of waterproof sheets of adjacent units.

FIG. 5 is a diagram illustrating a procedure of providing a winding member on an end portion of the waterproof sheet and winding the winding member.

FIG. 6 is a diagram illustrating a procedure of heat-sealing and joining a waterproof sheet.

FIG. 7 is a diagram illustrating another example of the method of FIG.

[Explanation of symbols]

 A to C units 1a, 1b Outermost walls 2a, 2b Room side inner walls 3a, 3b Openings 4a, 4b Waterproof sheet 4a1-4a3, 4b1-4b3, 4c1, 4c2, 4c4 Overhanging part 5 Double-sided adhesive tape 6a, 6b Vertical frame Material 7a, 7b, 12 Inner wall material 8 Sealing material 9 Backup material 11 Adhesive tape 13 Winding member 13a, 13b Half body 14a, 14b Thermoplastic resin 15 Heater 16a, 16b Cutout 17 Core core

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04B 2/56 604 E04B 2/56 604A 604D 611 611M 622 622C 644 644B 2/96 2/96

Claims (5)

[Claims] 1. A waterproof structure for a unit house, wherein the entire inner surface of the outer wall of each unit constituting the unit house is covered with a waterproof sheet. 2. A waterproof sheet is affixed to a flat surface formed between an outer wall of a unit and an inner wall of a room in a unit house except for an opening, and is affixed to adjacent units vertically and horizontally. A waterproof structure for a unit house, characterized in that the opposite ends of the waterproof sheet are continuously joined together, and the entire wall surface of the house is covered with an integrated waterproof sheet. 3. The unit house according to claim 2, wherein the end portions of the waterproof sheet are projected from the outer wall surface of each unit, and the end portions of the waterproof sheets of adjacent units are overlapped with each other. Waterproof structure. 4. A winding member is provided at an end portion of the waterproof sheet, and an end portion of the waterproof sheet is overlapped by winding an adjacent waterproof sheet around the winding member. The waterproof structure of the unit house described in 3. 5. The thermoplastic resin is applied to the end portions of the waterproof sheet, and the adjacent waterproof sheets are heat-sealed to each other so that the end portions of the waterproof sheets are overlapped with each other. The waterproof structure of the unit housing.