JPH0913525A - Exterior execution method - Google Patents

Abstract

PURPOSE: To form an exterior execution method (construction of high thermal insulation/high airtightness) having thermal insulating construction and airtight construction by one effort for an exterior execution method for construction and building. CONSTITUTION: A thermal insulation composite board 2 is formed on the front side of a skeleton 1, a plurality of battens 3 are fixed on the thermal insulation composite board 2, an exterior finishing material 6 is formed on the battens 3, a separation sheet is stuck on the surface of an indoor side of the skeleton 1, a site foaming type synthetic resin foam 5 is sprayed in a space 7 surrounded by the skeleton 1 and a thermal insulation composite board 2 and, at the same time, it is filled into the skeleton so that the space 7 can be formed therein. Then, the separation sheet is stripped off, and an interior finishing material is provided to the surface of the indoor side of the skeleton 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior construction method for buildings and structures, and more particularly to an exterior that can form an exterior having a heat insulating structure and an airtight structure (highly insulating / airtight structure) all at once. It relates to the construction method.

[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. 15 (a) and 15 (b) have also been proposed.

[0004]

However, FIG.
In the structure of (a), since the in-situ foaming resin a is sprayed from the outdoors to the space between the heat insulating board b and the batten c, it depends on the weather (rain, wind, snow, etc.) and is adjacent in a dense area. There is a risk of promoting fire spread when a fire occurs indoors because it cannot be installed because it is scattered in the house and the heat insulating board b such as styrene board is exposed inside. Furthermore, since the on-site foaming resin a is attached to the surface of the batten c because the batten c is low, it is necessary to eliminate unevenness (unevenness of the fixed base), and before the exterior material d is constructed. I had to remove it.

With respect to the release of moisture to the outside, since the moisture flows from the higher absolute humidity to the lower direction,
When the in-situ foaming resin a is formed on the surface side of the heat insulation board b, the moisture permeation resistance of the in-situ foaming resin a needs to be smaller than the moisture permeation resistance of the heat insulation board b. However, it is general that a styrene board is formed on the heat insulating board b. In this case, the moisture permeation resistance of the in-situ foam type resin a becomes larger than that of the heat insulating board b. There is a drawback that water is stored between the resins a.

Further, in FIG. 15 (b), the in-situ foaming resin a is sprayed from the inside of the room so that it is not affected by the weather. However, since the exterior material d and the in-situ foaming resin a are in contact with each other, the in-situ foaming resin a is in contact. There is a risk that the exterior material d will be deformed by the foaming pressure of a, and since the ventilation method is not formed, moisture is accumulated in the batten c due to the structure, and the batten c
There was also a risk of corrosion. Further, since the ventilation method is not formed, moisture from the inside is stored between the exterior material d and the in-situ foaming resin a, which causes corrosion of the skeleton e.

[0007]

In order to eliminate such drawbacks, the present invention forms an insulating composite board on the front side of a skeleton, fixes a plurality of battens on the insulating composite board, and mounts the batten on the batten. Form an exterior material, attach a release sheet to the indoor side of the skeleton, spray a synthetic resin foam of in-situ foam type into the space surrounded by the skeleton and heat insulating composite board, and create a space between the skeletons By filling, then peeling off the release sheet, and by applying the interior material on the indoor side surface of the body and applying the exterior, heat insulation, earthquake resistance, airtightness, workability, waterproofness are improved and condensation prevention The present invention provides an exterior construction method.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The exterior construction method according to the present invention will be described in detail below with reference to the drawings. 1 (a) and 1 (b) are a sectional view and a perspective view showing an example of a wall formed by the exterior construction method according to the present invention, where 1 is a skeleton, 2 is a heat insulating composite board, 3 is a batten, and 4 is A release sheet, 5 is a foamable synthetic resin foam in situ, 6 is an exterior material, 7 is a space, and 8 is an interior material.

The skeleton 1 is made of a wooden base made of main pillars, studs, rafters, etc., or a wall base made of steel base, a roof base, etc.

The heat insulating composite board 2 is as shown in FIG. 2, and is a composite board having a sandwich structure in which the core material 2c is formed between the hard base material 2a and the sheet-like material 2b.

The hard substrate 2a is made of plywood, siding board, siding insulation board, gypsum board, cement board, calcium carbonate board, calcium silicate board, ceramic board, wood chip cement board, magnesium carbonate board, etc. is there.

As the sheet-like material 2b, kraft paper, aluminum kraft paper, aluminum vapor deposition paper, asbestos paper, asphalt felt, metal foil (Al, Fe, Pb, Cu,
Etc.), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric, metal material, etc., or a laminate of two or more kinds,
Alternatively, it is made of a sheet that has been waterproofed or flame-retarded.

As the core material 2c, polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, or the like, or inorganic materials such as inorganic lightweight aggregate or inorganic fiber are mixed therein. It is made up of such things as:

The batten 3 is as shown in FIG.
As shown in FIG. 1, a plurality of frames are formed on the heat insulating composite board 2 at the pitch of the frame 1, vertically or horizontally (not shown). Further, the batten 3 functions as a fixed base of the exterior material 6 described later.

The batten 3 is usually made of wood, but if necessary, it may be made of artificial wood, steel (angle, lip groove steel, square pipe, etc.), plastic material (square pipe, etc.), and the like. is there.

The release sheet 4 is as shown in FIG. 4, and is a single-sided adhesive tape made of gum tape, cloth tape, synthetic resin tape, or the like. Of course, anything that can be peeled off later may be used. Further, as the release sheet 4, a release agent may be formed on the surface side (the surface on which the in-situ foaming type synthetic resin foam 5 is attached). In this case, the release sheet 4 is not peeled off, and the in-situ foaming synthetic resin foam 5 is peeled from the surface of the release sheet 4.

The in-situ foam type synthetic resin foam 5 is formed by using a synthetic resin foam formed by spraying the stock solution on site. Hard urethane foam is the main material, but flame retardant class 2 and flame retardant class 3 (JI
S-A-1321) Acceptable products include phenol polyol + isocyanate + flame-retardant material (hereinafter simply referred to as phenol urethane). Of course, there are non-CFC (no CFCs are used) synthetic resins, and those made of phenolic resins to make them flame-retardant.

Since the in-situ foaming type synthetic resin foam 5 is used to be foamed by being sprayed on site as described above, it has a space 7 between the frame 1 and the heat insulating composite board 2 as shown in FIG. Since it can be filled without gaps 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. Further, this space 7 can be used as a ventilation path for an air cycle in a house.

The exterior material 6 is, as shown in FIG. 5, a metal-based siding material in which a core material is formed between a metal surface material and a back surface material, or a ceramic-based siding material (not shown), AL.
It is made of a C plate, a PC plate, or the like, or a roof material made of a metal roof material, straw, new roof tile, or the like. These exterior materials 6 have properties such as weather resistance, corrosion resistance, heat insulation, waterproofness, fire resistance, soundproofing, sound insulation, chemical resistance, durability, and the like.

The space 7 is an air cycle space or a space for releasing indoor humidity to the outside, and is for improving the durability of the house.

Here, a brief description will be given of a construction example of the exterior construction method according to the present invention. First, as shown in FIG. 6 (a), a phenol foam is sandwiched between the sheathing board and the almirana paper on the body 1. 25m thick
The heat insulating composite board 2 formed in m is formed on the entire surface. Of course, the sheathing board is fixed outside.

Next, as shown in FIG. 6 (b), the wooden batten 3 is fixed at the pitch of the frame 1 with a fixing tool α such as a plurality of nails.

Thereafter, as shown in FIG. 6 (c), the release sheet 4 is attached to the indoor side surface of the body 1. As a matter of course, the in-situ foaming synthetic resin foam 5 is attached to a portion where it is necessary to prevent the synthetic resin foam 5 from being attached.

Thereafter, as shown in FIG. 6D, an in-situ foaming synthetic resin foam 5 made of phenol urethane is sprayed onto the space 7 between the frame 1 and the heat insulating composite board 2.

An enlarged view of this portion is shown in FIG. 7, and the in-situ foaming synthetic resin foam 5 is attached also to the side surface of the body 1 and the release sheet 4.

When the spraying of the in-situ foam type synthetic resin foam 5 is completed, the release sheet 4 is removed to remove unnecessary portions as shown in FIG. There is no such thing.

When the removal of the release sheet 4 is completed, FIG.
As shown in (b), an exterior material 6 for horizontal lining as shown in FIG. 5 is sequentially installed on the batten 3 from the base toward the eaves.

Finally, as shown in FIG. 8 (c), the interior material 8
Is completed and the construction is completed. Of course, the order of forming the batten 3, the exterior material 6, and the interior material 8 is not particularly limited.

[0029]

[Other Embodiments] The above description is merely one embodiment of the exterior construction method according to the present invention, and FIGS.
And it can be formed as shown in FIGS. That is, FIGS. 9A and 9B show a frame 1, a synthetic resin foam 5 of the in-situ foaming type, and a heat insulating composite board 2.
A waterproof sheet 9 is formed between the heat insulating composite board 2 and the batten 3, and is made of, for example, asphalt felt, asphalt roofing, windproof / moisture permeable sheet (sheet that does not allow air to pass) or polyethylene sheet. It consists of a plastic sheet, etc. This is mainly for improving waterproofness and airtightness, and secondarily for preventing infiltration of moisture (humidity) into the on-site foaming synthetic resin foam 5, the heat insulating composite board 2 or the like. It was formed in.

FIG. 9C, and FIGS. 10A and 10B.
Is a double-sided tape 1 on the back of the connection between the heat insulating composite boards 2.
0 is formed, and by completely adhering the connecting portion between the skeleton 1 and the heat insulating composite board 2, it is for preventing the invasion of wind and water from the connecting portion and improving the airtightness. .

FIG. 10 (c) shows an exterior construction method for the roof part. The frame 1 is a rafter, the batten 3 is a pier formed from the eave toward the ridge, and the indoor space 7 is an attic. Of course, the exterior material 6 is a roof material.

11 (a)-(i) -FIG. 13 (a)-
(F) shows another embodiment of the exterior material 6,
It shows a metal surface material, a metal-based siding material in which a core material is formed between back surface materials, a metal roof material, and the like.

Further, FIGS. 14 (a) and 14 (b) show another embodiment of the exterior construction method according to the present invention. FIG. The release sheet 4 is removed after the synthetic resin foam 5 of the mold is formed, and the exposed surface 11 a is formed in the braces 11. By doing so, it is possible to smoothly release the water from the muscles 11. In addition, (b) figure is structure 1
The side surface of is also completely covered with the in-situ foam type synthetic resin foam 5.

[0034]

As described above, according to the exterior applying method of the present invention, a highly heat insulating and highly airtight exterior applying method can be easily formed in a short time. The construction period can be shortened because the on-site foaming synthetic resin foam can be formed regardless of the weather such as rain and wind. Since the on-site foaming synthetic resin foam is sprayed from indoors, construction is possible even in dense areas (where the boundaries are narrow). 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. Before the in-situ foaming synthetic resin foam was formed, a release sheet was formed to prevent adhesion to unnecessary parts.Therefore, it is necessary to remove the in-situ foaming synthetic resin foam on the surface after spraying. do not do. Moisture (condensation) does not occur on the skeleton and batten parts, and performance can be maintained for a long time. The space between the skeleton and the heat insulating composite board can be used as a flow path for the air cycle, and the space between the exterior material and the batten can be used as an exhaust path for discharging moisture from the interior to the outside.
The humidity of the air to be cycled can be kept low. Therefore, a healthy and comfortable living space can be formed.
By forming the heat insulating composite board, it is possible to improve the heat insulating property, the earthquake resistance, the airtight property, the workability, and the waterproof property, and to form the structure in which the dew condensation is prevented all at once. There are features and effects such as.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing a heat insulating composite board used in the exterior mounting method according to the present invention.

FIG. 3 is a perspective view showing a batten used in the exterior construction method according to the present invention.

FIG. 4 is a perspective view showing a state before attachment of a release sheet used in the exterior construction method according to the present invention.

FIG. 5 is a cross-sectional view showing an exterior material used in the exterior installation method according to the present invention.

FIG. 6 is a cross-sectional view for explaining the construction sequence of the exterior construction method according to the present invention.

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

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

FIG. 9 is a cross-sectional view showing another embodiment of the exterior construction method according to the present invention.

FIG. 10 is a cross-sectional view showing another embodiment of the exterior construction method according to the present invention.

FIG. 11 is a cross-sectional view showing another embodiment of the exterior material used in the exterior construction method according to the present invention.

FIG. 12 is a cross-sectional view showing another embodiment of the exterior material used in the exterior installation method according to the present invention.

FIG. 13 is a cross-sectional view showing another embodiment of the exterior material used in the exterior construction method according to the present invention.

FIG. 14 is a perspective view showing another embodiment of the exterior construction method according to the present invention.

FIG. 15 is a sectional view showing a conventional example.

[Explanation of symbols]

 α Fixture a In-situ foaming resin b Insulation board c Batten d Exterior material e Body 1 Body 2 Insulation composite board 2a Hard base material 2b Sheet material 2c Core material 3 Batten 4 Release sheet 5 Foaming synthetic resin foam Body 6 Exterior material 7 Space 8 Interior material 9 Waterproof sheet 10 Double-sided tape 11 Brace 11a Exposed surface

Claims (1)

[Claims] 1. A heat insulating composite board is formed on a front side of a body,
A plurality of battens are fixed on the heat insulating composite board, an exterior material is formed on the wood correspondingly, a release sheet is attached to the indoor side surface of the body, and a space surrounded by the body and the heat insulating composite board. It is characterized in that it is formed by spraying an in-situ foaming type synthetic resin foam on and filling it so that there is a space between the skeletons, then peeling off the release sheet, and applying an interior material on the indoor side surface of the skeleton. Exterior construction method.