JP2000274097A - Airtight, heat insulated structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure airtightness and heat insulation inside and outside a unit installation space by means of a simple structure. SOLUTION: The walls 2 or the like of a building 1 are of an airtight, heat insulated structure and a hermetic backup member 20 is provided at a sill 7 surrounding a unit installation space 11 in the building 1. A watertight pan 12 of a unitized building 10 is installed in the unit installation space 11 and a heat insulating material 16 is provided on the lower surface of the watertight pan 12. A airtight, heat insulating material 21 is provided between the peripheral edge 14 of the watertight pan 12 and the airtight backup member 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic heat insulating structure for a building, and more particularly to a hermetic heat insulating structure for a building in which the hermetic heat insulating property between the foundation of the building and the periphery of the waterproof pan of the unit structure is improved.

[0002]

2. Description of the Related Art In recent years, in a building such as a house, there is a tendency that walls, floors, roofs, and the like have an air-tight insulation structure in order to form a comfortable living environment. In a building, a unit structure such as a bathroom unit is installed for ease of construction.

[0003] The unit structure is installed in a unit installation space of a building. The lower part of the unit installation space is generally in communication with the outside air, and the outside air flows from below to above the unit structure. Since it is easy to get around and enter the room, measures for airtightness are an important point, and various airtight structures have been proposed (for example, JP-A-9-279870, JP-A-10-121).
589, JP-A-10-231631, etc.).

[0004]

However, in the conventional airtight structure, there are problems that the structure is complicated, labor and cost are required for construction, and the construction period is prolonged. For example, when trying to adopt an airtight structure in which the gap between the periphery of the waterproof pan constituting the bottom of the unit structure and the wall of the building is sealed with an airtight film, etc. If the wall work around the unit installation space is not completed, there is a problem that airtight work cannot be performed until the wall work is completed. In the case of an airtight film, airtightness can be ensured, but heat insulation cannot be ensured, and there is a problem that dew condensation occurs on the surface of the airtight film.

The present invention has been made in view of the above circumstances, and has as its object to provide an airtight and heat insulating structure for a building, which can secure airtight and heat insulating properties inside and outside a unit installation space with a simple structure. I do.

[0006]

Means for Solving the Problems In the present invention, claim 1 is provided.
The airtight insulation structure of the building according to the present invention, an airtight insulation structure for the walls and the like of the building, an airtight backup member is provided on a base surrounding the unit installation space of the building, and a waterproof pan of the unit structure is installed in the unit installation space. A heat insulating material is provided on a lower surface of the waterproof pan, and an airtight heat insulating material is provided between a peripheral portion of the waterproof pan and the airtight backup member.

According to a second aspect of the present invention, there is provided a hermetic insulation structure for a building, wherein an upwardly extending plate-like member is provided airtightly on an indoor surface of a base surrounding a unit installation space of the building or on an indoor side of an upper surface thereof. A waterproof pan of a unit structure is installed, and a space between a peripheral portion of the waterproof pan and the plate-like member is closed with an airtight material.

According to a third aspect of the present invention, there is provided an airtight insulation structure for a building, wherein a plate-like member extending upward is provided airtightly on the indoor surface of the base surrounding the unit installation space of the building or on the indoor side of the upper surface. The suspension frame of the unit structure is supported between the suspension frames, the waterproof pan of the unit structure is installed on the suspension frame, and the gap between the periphery of the waterproof pan and the plate-like member is closed with an airtight material. I do.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a building, and the building 1 has a wall 2 and the like formed of a heat insulating panel 3 to have an airtight and heat insulating structure. The heat insulation panel 3 has a structural plywood serving as a load-bearing wall, for example, a surface material (outdoor surface material) 5 such as an OSB (Oriented Strand Board) attached to the outdoor surface of the square frame 4. A heat insulating material 6 such as urethane foam is foam-filled. A face material (not shown) such as plywood, paper, or a resin sheet is attached to the indoor surface of the four-sided frame 4.

The heat insulation panel 3 is formed by inserting a four-sided frame 4 into an opening defined by a base 7 which is a skeleton (structural portion) of the building 1, a girder and columns (not shown), and It is attached by nailing to the outer surface of the car. Around the four-sided frame 4, an airtight seal member, such as an airtight fin 8, for airtightly sealing the space between the frame and the frame is provided.
The base 7 is installed on a cloth foundation 9.

In the building 1, a unit installation space 11 for installing a bathroom unit 10, which is a unit structure, is provided.
The cloth foundation 9 and the base 7 are provided so as to surround the unit installation space 11 (see FIG. 4). The bathroom unit 10 includes a waterproof pan 12 forming the bottom thereof, a bathtub 13 provided on the waterproof pan 12, and a wall panel 15 built on a peripheral portion (also referred to as a peripheral flange portion) 14 of the waterproof pan 12. And a ceiling panel (not shown) provided so as to cover the upper part defined by the wall panel 15.

The waterproof pan 12 includes a washing pan and a waterproof pan.
2a, a bathtub waterproof pan 12b, and the bathtub has a double pan structure of the bathtub 13 and the bathtub waterproof pan 12b. Lower surface of waterproof pan 12 (including the outer surface of the surrounding rising portion)
Is provided with a heat insulating material 16 such as hard urethane foam having a predetermined thickness by spraying or the like. The bathroom unit 10 of the present embodiment is configured to be installed in the unit installation space 11 via a suspension base 17, and the suspension base 17 is supported between the base 7 and the cloth foundation 9. ing.

The suspension base 17 is provided with a suspension arm 18 having an inverted L-shaped cross section at both ends in the longitudinal direction, and the tip of the suspension arm 18 is supported on the upper surface of the cloth base 9. On the lower surface of the base 7, a notch 19 for inserting the tip of the hanging arm 18 is formed (see FIGS. 2 and 4). It is preferable that the notch 19 and the tip of the suspension arm 18 do not penetrate to the outdoor side from the viewpoint of heat insulation and airtightness.

In order to shut off the lower part of the unit installation space 11 communicating with the outside air and the upper part which is the indoor side,
The following hermetic insulation structure is adopted. First, as shown in FIG. 2, an upwardly extending plate-like member 20 as an airtight backup member is provided on the inner surface (indoor surface) of the base 7 in an airtight manner. An airtight heat insulating material (airtight material) 21 is inserted between the shape members 20 and closed. The plate-like member 20 is made of a wooden board, for example, plywood.

As shown in FIG. 5, the plate member 20 is
Except for the entrance 22 of the bathroom unit 10, it is continuously attached to the inner periphery of the base 7. Since the on-board member 20 is disposed so that the ends are adjacent to each other at the corners,
It is preferable to seal between adjacent ends with, for example, a caulking material. In order to maintain the airtightness between the base 7 and the plate member 20, it is preferable to attach the plate member 20 to the inner periphery of the base 7 via an airtight tape 23 made of a double-sided adhesive tape. The plate-shaped member 20 is fixed to the base 7 by, for example, a screw 24 which is a fixing tool.

The airtight heat insulating material 21 is easily deformed.
It is formed in a hollow rod shape (pipe shape). Airtight insulation 2
As 1, a material having elasticity, low water absorption, and strong against aging is suitable. In the present embodiment, it is made of a sponge-like elastomer. As the airtight heat insulating material 21, for example, a heat insulating material of a pipe can be applied.

An L-shaped receiving member 25 made of synthetic resin is used to insert the airtight heat insulating material 21 between the peripheral portion 14 of the waterproof pan 14 and the plate-like member 20 in an inserted state. L
The shape receiving member 25 includes the peripheral portion 14 of the waterproof pan 12 and the plate-like member 2.
It is arranged continuously along the gap of 0, and is attached to the plate-like member 20 by, for example, a nail 26 which is a fixing tool. The hermetic heat insulating material 21 is pushed into the gap between the peripheral portion 14 of the waterproof pan 12 and the plate-shaped member 20 so as to be placed on the upper surface of the L-shaped receiving material 25, and the hermetic heat insulating material 21 is adhered by its own elastic restoring force. Will be retained.

In order to prevent detachment of the airtight heat insulating material 21 and further enhance airtightness, an adhesive tape is applied over the plate member 20 from the upper surface of the peripheral portion 14 of the waterproof pan 12 so as to cover the upper surface of the airtight heat insulating material 21. It is preferable that an airtight tape 27 made of

On the other hand, an opening frame 28 formed of a four-sided frame is attached to the entrance 22 of the bathroom unit 10, and a door body, for example, a sliding door 29 is attached to the opening frame 28 so as to be openable and closable. The opening frame 28 includes an upper frame (not shown) and a lower frame 2 (not shown).
8a and the right and left vertical frames are assembled in a square shape. FIG.
As shown in the figure, the dressing room 30 adjacent to the bathroom unit 10
In order to connect the floor surface 31 and the upper surface of the wash basin waterproof pan 12a on the side of the entrance 22 as a barrier-free type having no step (or a small step), a part of the rising edge around the wash basin waterproof pan 12a is part of the entrance 22 part. The lower frame receiving member 33 is attached to the cut portion via the sealing member 32.
Are abutted in a watertight manner and attached with screws 34 and 35.

The lower frame receiving member 33 is formed in a gutter shape having an open upper portion for catching water leaking from the periphery of the lower frame 28a, and both ends in the longitudinal direction are closed by a closing member in a watertight manner. Have been. A drain pipe 37 is connected to the bottom of the lower frame receiving member 33 via a drain guide 36, and the drain pipe 37 is connected to, for example, the bathtub waterproof pan 12b.

The lower frame 28a is housed inside the lower frame receiving member 33, and one side of the lower frame 28a is
And the other side is fixed to the floor 31 of the undressing room 30. The lower frame 28a is formed in a gutter shape with an open upper portion for collecting and draining water flowing toward the entrance 22 on the washing basin waterproof pan 12a.
Both ends in the longitudinal direction are watertightly closed by a vertical frame via a caulking sealer. A cover member 38 is detachably mounted above the lower frame 28a.
Is provided with a drain hole (not shown) as appropriate. Lower frame 2
A drain port (not shown) is provided at the bottom of 8 a so that collected water is drained to a drain guide 36 of the lower frame receiving member 33.

Since the lower frame receiving member 33 is close to the base 7, the base 7 at the entrance 22 is provided with the plate-like member 20.
, And the same airtight heat insulating material 21a as the airtight heat insulating material 21 is directly provided between the lower frame receiving material 33 and the base 7. An L-shaped receiving material 25 for supporting the airtight heat insulating material 21a is attached to the base 7, and the L-shaped receiving material 25 and the lower frame receiving material 33 are attached.
The airtight heat insulating material 21a is inserted between them, and is closely held by its own elastic restoring force. In order to prevent detachment of the airtight heat insulating material 21a and to further secure airtightness, an adhesive tape is applied to the upper surface of the base 7 from the outer surface of the lower frame receiving material 33 so as to cover the upper surface of the airtight heat insulating material 21a. It is preferable that the airtight tape 27 made of is continuously attached along the longitudinal direction of the airtight heat insulating material.

As shown in FIG. 7, both ends of the hermetic heat insulating material 21a provided along the lower frame receiving material 33 rise along both ends of the lower frame receiving material 33, and It is connected so as to be continuous with the airtight heat insulating material 21 provided along 14. In addition, the airtight insulation materials 21 and 21a are as follows.
If the sheet is bent at a corner, a gap is likely to be generated. Therefore, it is preferable to cut at each corner and connect the ends by overlapping.

Next, the construction method and operation of the hermetically sealed heat-insulating structure for a building having the above configuration will be described. First, as shown in FIG. 4, the hanging stand 17 of the bathroom unit 10 is attached to the base 7 and the cloth
It is set up so that it is supported between. Next, the inner four sides of the base 7 are dimensioned, and the plate-shaped member 20 serving as an airtight backup member is measured and processed.

Next, after the airtight tape 23 is attached to the base 7, the plate-like member 20 is attached as shown in FIG. The base 7 of the plate member 20 and the entrance 22
Attach the L-shaped receiving member 25 to the. Then, as shown in FIG. 6, after the waterproof pan 12 of the bathroom unit 0 is installed on the hanging stand 17, as shown in FIG. 7, between the peripheral portion 14 of the waterproof pan 12 and the plate-like member 20. The hermetic heat insulating material 21 is inserted, and the hermetic heat insulating material 21 a is inserted between the lower frame receiving material 33 previously attached to the waterproof pan 12 and the base 7. Then, the hermetic tape 27 is attached so as to cover the hermetic heat insulating materials 21 and 21a, thereby completing the hermetic heat insulating work. Thereafter, the standard construction of the bathroom unit 10 may be performed.

According to the airtight insulation structure of the building thus constructed, the walls 2 and the like of the building 1 are made airtight insulation structure,
An airtight backup member 20 is provided on the base 7 surrounding the unit installation space 11, and a waterproof pan 12 of the bathroom unit 10 is installed in the unit installation space 11, and a heat insulating material 16 is provided on a lower surface of the waterproof pan 12. The peripheral portion 14 of the waterproof pan 12 and the airtight backup member 20
Since the airtight heat insulating material 21 is provided between the building and the building, it is possible to secure the airtight heat insulating property between the inside and outside of the unit installation space 11 with a simple structure in which the airtight backup member 20 and the airtight heat insulating material 21 are provided on site. The airtight work can be completed only on the bathroom unit side without waiting for the wall work, and the workability can be improved.

Since the backup member 20 is a plate-like member which is airtightly attached to the interior surface of the base 7 so as to extend upward or stand up, the backup member 20 depends on the site.
In contrast, even if the position of the bathroom unit 10 varies in the vertical direction, airtight and heat-insulating properties between the inside and outside of the unit installation space 11 can be easily secured. Also,
Since the suspension base 17 of the bathroom unit 10 is supported between the base 7 and the cloth foundation 9, unlike the case where the suspension base is supported on the upper surface of the base 7, the plate member 20 can be easily attached to the base 7. As a result, barrier-free operation can be easily achieved by lowering the position of the waterproof van 12.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiment, and various design changes and the like can be made without departing from the gist of the present invention. Is possible. For example, in the above embodiment, the plate-like member is attached to the indoor surface of the base, but the plate-like member may be attached to the indoor side of the upper surface of the base.

The method of installing the bathroom unit is as follows.
In the above-described embodiment, a suspension type using a suspension stand is shown, but a direct installation type in which a bathroom unit is directly installed on the soil may be used. The unit structure may be, for example, a shower room unit or the like in addition to the bathroom unit.

[0031]

According to the present invention as described above, the following effects can be obtained.

According to the first aspect of the present invention, the walls and the like of the building have an airtight and heat insulating structure, and an airtight backup member is provided on a base surrounding the unit installation space of the building. A waterproof pan of a unit structure is installed, and a heat insulating material is provided on a lower surface of the waterproof pan, and an airtight heat insulating material is provided between a peripheral portion of the waterproof pan and the airtight backup member. With a simple structure that only requires the provision of a backup member and airtight insulation, airtight insulation inside and outside the unit can be secured in the unit installation space, and airtight work can be completed only on the unit structure side without waiting for building wall work. And workability can be improved.

(2) According to the hermetic and heat-insulating structure for a building according to the second aspect, a plate-like member extending upward is provided airtightly on the indoor surface of the base surrounding the unit installation space of the building or on the indoor side of the upper surface, The waterproof pan of the unit structure was installed in the unit installation space, and the space between the periphery of the waterproof pan and the plate-like member was closed with an airtight material. Even if there is a variation in the unit structure, it is possible to secure the air-tight and heat-insulating properties inside and outside the unit installation space with a simple structure that only requires the provision of a plate-shaped member and an air-tight material. The airtight construction can be completed only on the side, and the workability can be improved.

According to the third aspect of the present invention, a plate-like member extending upward is provided in an airtight manner on the indoor surface of the base surrounding the unit installation space of the building or on the indoor side of the upper surface. A suspension of the unit structure is supported between the base and the cloth foundation, a waterproof pan of the unit structure is installed on the suspension, and a gap between the periphery of the waterproof pan and the plate-like member is closed with an airtight material. Therefore, it is possible to secure the air-tight and heat-insulating properties inside and outside the unit installation space with a simple structure that simply provides a plate member and air-tight material on site, and to support the suspension base between the base and the cloth foundation, Mounting of the plate member can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the main part.

FIG. 3 is an enlarged cross-sectional view showing an airtight and heat-insulating structure on the entrance side of the bathroom unit.

FIG. 4 is a perspective view showing a state in which a hanging stand of a bathroom unit is provided in a unit installation space of a building.

FIG. 5 is a perspective view showing a state where a plate-shaped member is attached to a base.

FIG. 6 is a perspective view showing a state where a waterproof pan is installed in a unit installation space.

FIG. 7 is a perspective view showing a state in which an airtight heat insulating material is attached between a peripheral portion of the waterproof pan and a plate-like member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 2 Wall 7 Base 9 Cloth foundation 10 Bathroom unit (unit structure) 11 Unit installation space 12 Waterproof pan 16 Insulation material 17 Suspension stand 20 Plate member (airtight backup member) 21 Airtight insulation material (airtight material)

Claims (3)

[Claims] 1. A wall or the like of a building has an airtight insulation structure, an airtight backup member is provided on a base surrounding a unit installation space of the building, a waterproof pan of the unit structure is installed in the unit installation space, and a lower surface of the waterproof pan is provided. A heat-insulating material is provided between the waterproof pan and the air-tight back-up member. 2. An airtightly provided plate-like member extending upward on the indoor surface of the base surrounding the unit installation space of the building or on the indoor side of the upper surface, and a waterproof pan of a unit structure is installed in the unit installation space. An airtight insulation structure for a building, wherein a space between the periphery of the waterproof pan and the plate-like member is closed with an airtight material. 3. An airtightly provided plate-like member extending upward on the indoor surface of the base surrounding the unit installation space of the building or on the indoor side of the upper surface, and a suspension base of the unit structure is provided between the base and the cloth foundation. A hermetic insulation structure for a building, wherein a waterproof pan of a unit structure is installed on the suspension stand, and a gap between a periphery of the waterproof pan and the plate-like member is closed with an airtight material.