JPH07324396A - External facing structure - Google Patents

Abstract

PURPOSE:To form a facing structure (highly heat insulating and highly airtight structure) having heat insulating structure and airtight structure at once. CONSTITUTION:In a method for forming a heat insulating structure between fixed beds for fixing a facing material 5 or interior material 6 onto the bed of a new or existing building by use of a foaming-in-place type synthetic resin foaming body 4, A release resin layer is formed on the surface of the fixed bed. After the formation of the foaming-in-place type synthetic resin foaming body 4, the release resin layer is removed, and the facing material 5 or interior material 6 is constructed on the exposed fixed bed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior structure for forming an exterior of a building or a structure, or an exterior structure for repairing an existing exterior. More specifically, the present invention relates to an exterior structure having a heat insulating structure and an airtight structure. The present invention relates to an exterior structure capable of forming a heat insulating and highly airtight structure all at once.

[0002]

2. Description of the Related Art Conventional heat insulating walls are made of a heat insulating material such as glass wool formed between the skeletons, a heat insulating board is formed on the surface of the skeleton, and an in-situ synthetic resin foam is formed between the skeletons after the wall is formed. There are those that are filled, those that are formed with a synthetic resin foam of in-situ foaming type from the inside of the skeleton to the back of the skeleton and the exterior material, and those that form a space between the skeleton and the exterior material to prevent dew condensation. Include those in which an airtight sheet such as a polyethylene sheet is formed on the body surface, and those in which the heat insulating / airtight wall is formed by using a heat insulating board and an airtight sheet such as a polyethylene sheet together on the body surface.

However, due to dew condensation, the glass wool becomes wet and rags, and the initial heat insulation performance could not be expected with this wet rag. In addition, there is a problem in the airtightness in the structure where only the heat insulation board is installed, and the space between the body and the exterior material is created by the foaming pressure during the reaction of the synthetic resin foam, and the fixing force of the exterior material decreases. However, there was a big defect that the surface of the exterior material was deformed and the exterior material itself became unusable. Further, although the condensed water is not stored between the skeleton and the exterior material due to the formation of the space, the heat insulating property cannot be fully utilized. In addition, there is a problem in workability such that two members, that is, a heat insulating board and a sheet such as a polyethylene sheet must be installed. Therefore, in order to solve these drawbacks, structures as shown in FIGS. 26 (a) and 26 (b) have also been proposed.

[0004]

However, as shown in FIG.
In the structures (a) and (b), the in-situ foaming resin a adheres to the surface of the furring c or the frame e, so that the in-situ foaming resin a is removed to eliminate unevenness (irregularities of the fixed base). Work was needed.

Further, in FIG. 26 (b), since the on-site foaming resin a is sprayed from indoors, it is not affected by the weather,
Since the exterior material d and the in-situ foaming resin a are in contact with each other, there is a risk that the exterior material d is deformed by the foaming pressure of the in-situ foaming resin a, and the ventilation method is not formed. Due to the structure, there is a risk that moisture will accumulate on the furring c and the furring c (wood) will rot.

[0006]

In order to eliminate such drawbacks, the present invention provides in-situ foaming between fixed bases for fixing exterior or interior materials on the lower ground of a newly constructed or existing building. In a method of forming a heat insulating structure with a mold-type synthetic resin foam, a peeling resin layer is formed on the surface of a fixed base, and the peeling resin layer is peeled after the on-site foaming type synthetic resin foam is formed. Alternatively, by forming the exterior by applying the interior material, the heat insulation,
(EN) Provided is an exterior structure in which airtightness, workability and waterproofness are improved and condensation is prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The exterior structure according to the present invention will be described in detail below with reference to the drawings. 1 (a) and 1 (b), and FIGS. 2 (a) and 2 (b) are a sectional view and a perspective view showing an example of a wall formed by the exterior structure according to the present invention, where 1 is a body,
Reference numeral 2 is a heat insulating board, 3 is a furring strip, 4 is a foamable synthetic resin foam in the field, 5 is an exterior material, 6 is an interior material, and 7 is a waterproof sheet. 1 (a) and 1 (b) are those in which an in-situ foaming type synthetic resin foam 4 is formed between the bases made of the furring strip 3, FIG.
(A), (b) shows the construction state of what formed the in-situ foaming type synthetic resin foam 4 between the foundations which consist of the skeleton 1.

The frame 1 is made of a main pillar, a stud, a rafter, or the like, a wooden base, or a steel base, a wall base, a roof base, or an existing wall base on which an existing exterior material 5 is formed, an existing roof base, And so on.

The heat insulating board 2 is as shown in FIG. 3, and is, for example, styrene foam (styrene board), polyurethane foam (urethane board), polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam,
Insulation board 2 made of synthetic resin foam such as urea foam, or composite board in which these synthetic resin foams are sandwiched by sheet materials, or gypsum board, cement board,
Calcium carbonate plate, calcium silicate plate, ceramic plate,
It is composed of a wood chip cement board, a magnesium carbonate board, a sheathing board, a sheathing insulation board, a plywood or the like, or a composite board of these.
These heat insulating boards 2 mainly have properties such as heat insulating property, fireproof property, fireproof property, soundproof property, soundproof property and waterproof property.
Of course, general-purpose products such as styrene board and urethane board are the most suitable materials in terms of workability, heat insulation, price, etc., and the heat bridge (heat conduction) of the body 1 part which is the weakest point in heat insulation performance The urethane board is used to prevent and strengthen the heat insulation of the exterior structure.

The furring strip 3 is as shown in FIG. 4, and as shown in FIGS. 1 and 2, a plurality of furring strips 3 are formed on the heat insulating board 2 at the pitch of the frame 1, vertically or horizontally (not shown). is there. Further, the furring strip 3 functions as a fixed base of an exterior material 5 described later.

The furring strip 3 is made of wood, artificial wood, steel (hollow pipe or the like), plastic material (hollow pipe or the like), or the like.

The in-situ foam type synthetic resin foam 4 is formed by spraying the stock solution on site to form a synthetic resin foam. Hard urethane foam is mainly used as the material, but flame retardant class 2 and flame retardant class 3 (JIS-A-1321)
There are also acceptable products such as phenol polyol + isocyanate + flame retardant (hereinafter simply referred to as phenol urethane).
Of course, there are non-CFC (no CFCs used at all) synthetic resin foam and those made of phenol resin foam for flame retardancy.

Since the in-situ foam type synthetic resin foam 4 is used to be foamed by being sprayed on site as described above, a gap is formed between the frame 1 and the heat insulating board 2 as shown in FIG. Since it can be filled into the container, and can be provided with heat insulation and airtightness all at once, it is possible to form a highly heat-insulated and airtight structure easily and in a short period of time, and also has a function of preventing dew condensation.

As shown in the cross section of FIG.
A metal siding material with a core material formed between a metal surface material and a back surface material, or ceramic siding material (not shown), ALC plate, PC plate, or the like, or a metal roof material, straw, or a new roof material. It is made of roof tiles. These exterior materials 5 have properties such as weather resistance, corrosion resistance, heat insulation, waterproofness, fire resistance, soundproofing, sound insulation, chemical resistance, and durability.

The waterproof sheet 7 is made of a wind-proof and moisture-permeable sheet (a sheet that allows moisture to pass through without passing air), asphalt felt, asphalt roofing, polyethylene sheet, or the like, and is mainly for improving waterproofness. . Further, a hard plate material such as plywood may be used instead of the waterproof sheet 7 as a fixed base of the exterior material 5 or the like.

Here, a construction example of the exterior structure according to the present invention will be briefly described. First, in order to form it as shown in FIGS. 1 (a) and 1 (b), as shown in FIG. Form the heat insulation board 2 made of styrene foam on the whole surface,
The release resin layer 1 a is attached to the back surface of the body 1. It should be noted that the release resin layer 1a is applied in situ with a liquid material having releasability after curing, and after the in-situ foaming synthetic resin foam 4 is formed, the in-situ foaming synthetic resin foam formed on the skeleton 1 is formed. The body 4 is peeled off together with the resin peeling layer 1a, and the in-situ foaming synthetic resin foam 4 on the body 1 is removed. For this reason, it is possible to easily create a state in which there is no unevenness (unevenness) in the base (body 1) when forming the interior material 6.

Next, as shown in FIG. 7, the wooden furring strips 3 are fixed at the pitch of the frame 1 with a fixing tool α such as a plurality of nails.

After that, as shown in FIG. 7, an in-situ foaming synthetic resin foam 4 made of phenol urethane is sprayed and filled so as to form a gap between the frame 1 and the heat insulating board 2.

After the spraying of the in-situ foam type synthetic resin foam 4 is completed, the peeling resin layer 1a is peeled off as shown in FIG. 8 to remove the synthetic resin foam 4 on the skeleton 1.
Next, as shown in FIG. 9, a waterproof sheet 7 (wind-proof and moisture-permeable sheet) is formed on the entire surface, and then an exterior material 5 for horizontal lining as shown in FIG. 5 is placed on the furring strip 3 from the base toward the eaves. Build in sequence.

Finally, the interior material 6 is formed as shown in FIG. 10 to complete the construction.

Further, in order to form as shown in FIGS. 2 (a) and 2 (b), first, as shown in FIG. 11, a heat insulating board 2 made of styrene foam is formed on the entire surface of the skeleton 1.

Next, as shown in FIG. 12, the wooden furring strips 3 are fixed at a pitch of the frame 1 with a fixing tool α such as a plurality of nails.

Thereafter, as shown in FIG. 13, the release resin layer 1
a is affixed to the upper surface of the furring strip 3, and as shown in FIG. 14, an in-situ foaming type synthetic resin foam 4 made of phenol urethane is sprayed into the space surrounded by the furring strip 3 and the heat insulating board 2 for close packing. To do. It should be noted that the release resin layer 1a is applied in situ with a liquid material having releasability after curing, and after the in-situ foaming synthetic resin foam 4 is formed, the in-situ foaming synthetic resin formed on the furring strip 3 is formed. The foam body 4 is peeled off together with the resin peeling layer 1a, and the in-situ foaming type synthetic resin foam body 4 on the furring strip 3 is removed. For this reason, it is possible to easily create a state in which there is no unevenness (unevenness) on the base (furnace 3) when the exterior material 5 is formed.

After the in-situ foam type synthetic resin foam 4 is formed on the entire surface, the in-situ foam type synthetic resin foam 4 on the furring strip 3 is removed by peeling the release resin layer 1a as shown in FIG.

Thereafter, as shown in FIG. 16, a waterproof sheet 7 made of a windproof and moisture permeable sheet is laid on the furring strip 3.

Next, as shown in FIG. 16, the exterior material 5 as shown in FIG. 5 is sequentially applied from the base toward the eaves as shown in FIG. 2 to complete the installation. Of course, the construction order changes depending on the progress.

When the insulating board 2 is formed on the existing wall or the existing roof, the insulating board 2 is formed even if necessary because the on-site foaming type synthetic resin foam 4 has a blowing base. You don't have to.

As the base, a waterproof sheet 7 is formed on the skeleton 1 and the heat insulating board 2 is removed, a heat insulating material such as glass wool is formed between the skeletons 1, or the skeleton 1
It is optional, for example, the one in which the in-situ foaming synthetic resin foam 4 is formed between the indoor and the body 1 after forming the heat insulating board 2 on the surface.

[0029]

Other Embodiments The above description is merely one embodiment of the exterior structure according to the present invention, and it can be formed as shown in FIGS. That is, FIG.
In (c), (a) and (b) are figures in which a waterproof sheet 7 is formed between the frame 1 and the in-situ foaming synthetic resin foam 4 and the heat insulating board 2, or between the heat insulating board 2 and the furring strip 3. is there. This is mainly for improving waterproofness and airtightness, and secondarily water (humidity) to the on-site foaming synthetic resin foam 4 or the heat insulating board 2 made of the synthetic resin foam. It is formed to prevent the intrusion of.

FIGS. 17 (c) to 18 (a) and (b) show a waterproof tape 8 formed on the back surface of the connecting portion between the heat insulating boards 2, and the connecting portion between the frame 1 and the heat insulating board 2 is shown in FIG. By completely adhering, air and moisture are prevented from entering from the connecting portion and airtightness is improved. Also,
FIG. 18 (c) shows the exterior structure of the roof part,
The skeleton 1 is a rafter, the furring strip 3 is a pier formed from the eaves toward the ridge, and the exterior material 5 is a roof material.

19 (a) and 19 (b) show a waterproof sheet 7 formed between the frame 1 and the in-situ foaming synthetic resin foam 4 and the heat insulating board 2, or between the heat insulating board 2 and the furring strip 3. . This is mainly for improving waterproofness and airtightness, and secondarily water (humidity) to the on-site foaming synthetic resin foam 4 or the heat insulating board 2 made of the synthetic resin foam. It is formed to prevent the intrusion of.

FIGS. 19 (c) to 20 (a) and (b) show a waterproof tape 8 formed on the back surface of the connecting portion between the heat insulating boards 2, and the connecting portion between the frame 1 and the heat insulating board 2 is shown in FIG. By completely adhering, air and moisture are prevented from entering from the connecting portion and airtightness is improved.

In FIG. 20 (c), the furring strip 3 is formed in a trapezoidal shape, and when the on-site foaming synthetic resin foam 4 is sprayed, a space is created in the contact portion between the furring strip 3 and the heat insulating board 2. This is to prevent the formation and to prevent the deterioration of the heat insulation performance. Further, FIG. 21 (a) shows an exterior structure of the roof part, in which the frame 1 is a rafter, the furring strip 3 is a pier formed in the eaves direction from the eaves, and the exterior material 5 is a roof material. Also, FIG.
1 (b) is an exterior structure in which a heat insulating material 9 is formed between the skeletons 1, and examples of the heat insulating material 9 include polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam and the like. The board is made of synthetic resin foam, a composite board in which these synthetic resin foams are sandwiched by sheet materials, or glass wool. FIG. 21C shows the in-situ foamed synthetic resin foam 4 formed between the furring strips 3 and between the skeletons 1.

Further, FIGS. 22 (a) and 22 (b) show the exterior structure according to the present invention formed on the existing exterior material 5a. Further, FIG. 22C shows an exterior structure in which the furring strip 3 is not formed.

23 to 25 show another embodiment of the exterior material 5, which is a metal-based siding material in which a core material is formed between a metal surface material and a back surface material, a metal roof material,
Alternatively, although not shown, it is made of a ceramic siding material, a ceramic material, an ALC plate, a PC plate, or the like.

[0036]

As described above, according to the exterior structure of the present invention, a highly heat-insulating and highly airtight exterior structure can be easily provided.
Moreover, it can be formed in a short time. When a fire-retardant synthetic resin foam with high flame-retardant properties (flame-retardant 2nd grade, flame-retardant 3rd grade) is formed inside, even if a fire occurs from inside, the fire will propagate through the space inside the body No need to worry about fire spread. There is no deformation of the exterior material or dropping of the exterior material due to the foaming pressure during construction of the foamable synthetic resin foam on site. By simply removing the release resin layer after spraying, the work of removing the on-site foaming synthetic resin foam is completed, and the workability is greatly improved. Moisture (condensation) does not occur on the skeleton and furring strips, and performance can be maintained over a long period of time. The space between the skeleton and the heat insulating board, the space between the furring strip and the heat insulating board can be used as an air cycle flow passage, and the space between the exterior material and the furring strip can be used as an exhaust passage for discharging moisture from the outside to the outside. Therefore, the humidity of the air to be air-cycled can be kept low. Therefore, a healthy and comfortable living space can be formed.
Water is not stored between the heat insulation board and the in-situ foam type synthetic resin foam. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction state of an exterior structure according to the present invention.

FIG. 2 is a cross-sectional view showing a construction state of an exterior structure according to the present invention.

FIG. 3 is a perspective view showing a heat insulating board used in the exterior structure according to the present invention.

FIG. 4 is a perspective view showing a furring strip used in the exterior structure according to the present invention.

FIG. 5 is a cross-sectional view showing an exterior material used for the exterior structure according to the present invention.

FIG. 6 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 7 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 8 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 9 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 10 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 11 is a cross-sectional view illustrating the construction order of the exterior structure according to the present invention.

FIG. 12 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 13 is a cross-sectional view illustrating the construction order of the exterior structure according to the present invention.

FIG. 14 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 15 is a cross-sectional view illustrating a construction order of the exterior structure according to the present invention.

FIG. 16 is a cross-sectional view illustrating the construction order of the exterior structure according to the present invention.

FIG. 17 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 18 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 19 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 20 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 21 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 22 is a cross-sectional view showing another embodiment of the exterior structure according to the present invention.

FIG. 23 is a cross-sectional view showing an exterior material used for the exterior structure according to the present invention.

FIG. 24 is a cross-sectional view showing an exterior material used for the exterior structure according to the present invention.

FIG. 25 is a cross-sectional view showing an exterior material used for the exterior structure according to the present invention.

FIG. 26 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 α Fixture 1 Body 1a Peeling resin layer 2 Insulation board 3 Furrow 4 In-situ foaming synthetic resin foam 5 Exterior material 5a Existing exterior material 6 Interior material 7 Waterproof sheet 8 Waterproof tape 9 Insulation material

Claims (1)

[Claims] 1. A method for forming a heat insulating structure with a foamable synthetic resin foam in-situ between fixed bases for fixing exterior or interior materials on the lower ground of a new or existing building, etc. Forming a release resin layer on the surface of
An exterior structure in which a release resin layer is removed after forming an in-situ foam type synthetic resin foam, and an exterior material or an interior material is applied to an exposed fixed base.