JP3648684B2 - Building with external insulation structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building having an outer heat insulating structure in which a heat insulating material is attached to the outside of a housing.
[0002]
[Prior art]
When heat insulating material is attached to the outer wall in order to improve the heat insulating performance of the RC or SRC building, it has been usual to adopt a so-called inner heat insulating structure in which heat insulating material is generally attached to the inside of the housing. In the structure, internal dew condensation may occur between the heat insulating material and the housing, and there are cases where peeling of the heat insulating material, generation of ticks and molds, and the like become problems. Therefore, recently, as shown in FIG. 4, attention has been paid to an outer heat insulating structure in which a heat insulating material c is attached to the outside of the outer wall a and the beam b, and buildings with such a structure are in widespread use.
[0003]
[Problems to be solved by the invention]
By the way, as shown in FIG. 4, when the external slab d used as a balcony or an exterior corridor is provided in a state of protruding to the outside of the outer wall a, a thermal bridge (heat Therefore, in order to prevent such a thermal bridge, it is common to attach a heat insulating material e also to the indoor side in order to prevent such a thermal bridge.
[0004]
However, although it is a part as mentioned above, attaching the heat insulating material e to the indoor side is also the main purpose of the outside heat insulation, and the interior finishing is restricted because the heat insulating material e is attached to the room. There is also a problem that the construction is complicated, and the development of an effective means capable of solving such a problem has been desired.
[0005]
[Means for Solving the Problems]
In view of the above circumstances, the present invention uses a placement mold in which a heat insulating material is attached to an inner surface and a lower end surface of a mold body made of a concrete-based molding plate, and the placement mold serves as an exterior material. The outer wall of the outer heat insulating structure is used as a frame, and a thermal bridge prevention heat insulating material for preventing the occurrence of a thermal bridge at the joint between the outer slab and the outer wall protruding outside the outer wall is provided on the outer slab. It is a building with an outer heat insulating structure that is attached to the upper and lower surfaces of the base, and these thermal bridge prevention heat insulating materials are made to be continuous with the heat insulating materials in the placing mold ,
The thermal bridge prevention heat insulating material is driven into the outer bottom surface layer of the outer slab so that the thermal bridge prevention heat insulating material is continuous with the upper end surface of the outer mold heat insulating material, and the upper surface of the base of the outer slab mounting Rutotomoni attaching the block body which serves as a skirting or draining, its bottom surface of the block body thermal bridge preventing heat insulator leave attached together, the heat bridge preventing heat insulating material on the lower end surface of the mold body Further, it is characterized by being continuous with the heat insulating material .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a view showing a housing of an outer wall portion of a building having an outer heat insulating structure according to an embodiment of the present invention, and FIG. 2 is a view showing an example of a driving form 1 used in the present embodiment.
[0008]
The placement mold 1 shown in FIG. 2 is provided on the inner surface side of the mold body 2 made of a concrete molding plate with the truss bars 3 protruding, and the heat insulating material 4 is attached to the inner surface of the mold body 2. It will be.
[0009]
As the mold body 2, a precast concrete plate (PCa plate) or a cellular concrete plate (ALC plate) having a thickness of about 100 mm is employed. Since the mold body 2 is directly used as an exterior material, a desired exterior finish can be applied in advance to the outer surface thereof. For example, when the exterior finish is tiled, a tile is previously applied to the outer surface of the mold body 2. Paste it.
[0010]
The truss bar 3 is formed by forming a truss shape by welding or tightly connecting a rust-proof reinforcing bar or a wire such as stainless steel or resin, and about half of the height dimension is embedded in the mold body 2. These are assembled integrally with the mold body 2 with the others protruding to the inner surface side of the mold body 2.
[0011]
As the heat insulating material 4, for example, a foam heat insulating material such as rigid urethane foam is used, and the mold is formed so as to have a predetermined thickness (generally about 20 to 30 mm, or about 50 mm or more as a cold district specification). It is preferable to spray and form the inner surface of the main body 2, and it is preferable to form a moisture-proof layer by applying, for example, an asphalt emulsion moisture-proof material to the surface of the heat insulating material 4 as necessary. In addition, as shown to (a), (c), the same heat insulating material 4a is attached to the lower end surface as shown in (a), (c), and this heat insulating material 4a is the thermal bridge mentioned later. It is continuous with the heat insulating material 8 for prevention.
[0012]
As shown in FIG. 1, the building according to the present embodiment employs the above-described driving form 1 as an outer form 5 of the outer wall 5, the beam 6, and the pillar (illustration of the pillar is omitted). The heat insulating material 4 is naturally interposed outside the housing formed as such and integrated into the housing as it is.
[0013]
Further, in this building, an external slab 7 is provided in a state of projecting to the outside of the outer wall 5, and a thermal bridge preventing heat insulating material 8 is provided in a gap between the heat insulating materials 4 and 4 a on the upper and lower surfaces of the base slab 7. They are attached so as to be continuous without any heat bridge between the outer slab 7, the outer wall 5 and the inner slab 9, thereby preventing heat loss and condensation. The thickness and dimensions of the thermal bridge prevention heat insulating material 8 may be set so as to ensure the desired thermal bridge prevention performance, but when using a foamed thermal insulation material such as rigid urethane foam, the thickness is about 20 mm, A sufficient effect can be obtained by attaching the outer wall 5 within a range of about 200 mm.
[0014]
In this embodiment, as shown in FIG. 1, the thermal bridge prevention heat insulating material 8 attached to the lower surface side of the external slab 7 is driven into the lower surface layer portion of the external slab 7. For this, the thermal bridge preventing heat insulating material 8 is integrally assembled in advance with the bottom surface of the block body 10 having a predetermined shape, and the block body 10 is also installed on the base upper surface of the external slab 7 as a baseboard. Thus, the thermal bridge prevention heat insulating material 8 is made to be continuous with the heat insulating material 4a attached to the lower end surface of the placing mold 1. As the block body 10, those made of precast concrete, stones, ceramics, or bricks can be suitably used.
[0015]
In the building of this embodiment, the outer wall 5, the beam 6, and the column are formed by using the driving form 1 to which the truss reinforcement 3 and the heat insulating material 4 are attached, so that the heat insulating performance is excellent and internal condensation does not occur. The outer heat insulation structure can be constructed very efficiently, and the thermal bridge can be effectively prevented by attaching the thermal bridge prevention heat insulating material 8 to the joint between the outer wall 5 and the external slab 7. is there. And since it decided to attach the heat insulating material 8 for the thermal bridge prevention to each of the base upper and lower surfaces of the external slab 7, it is necessary to attach the heat insulating material e to the indoor side as in the case of the conventional external heat insulating structure shown in FIG. Therefore, a complete outer heat insulating structure can be realized, and the heat insulating material e is attached to a part of the room as in the prior art, so that the interior finish is not restricted and the construction is not complicated. In addition, the block body 10 in which the thermal bridge prevention heat insulating material 8 is preliminarily incorporated is manufactured and installed on the upper surface of the base of the external slab 7 as a baseboard, so that the block body 10 allows the thermal bridge prevention heat insulating material 8 to be installed. Can be protected by itself, construction is easy, and the appearance is excellent.
[0016]
In the above embodiment, as long as the thermal bridge prevention heat insulating material 8 is attached to the upper and lower surfaces of the base portion of the external slab 7 where there is a concern that a thermal bridge may be generated, an appropriate design change is possible. For example, as shown in FIG. In the case where an opening 12 such as a sweep window is provided, the block body 10 may have a function of draining by attaching a draining plate 13 to the top of the block body 10. In addition, the present invention uses a driving mold in which a heat insulating material is attached to the inner surface and lower end surface of a mold body made of a molded plate, and a block body in which a heat bridge preventing heat insulating material is attached to the bottom surface. Install the heat insulating material of the built-in mold, the heat insulating material for preventing thermal bridges that is driven into the surface of the bottom surface of the base of the external slab, and the heat insulating material for preventing thermal bridges that are attached to the bottom of the block body. As long as it does, the structure of each part is not specifically limited.
[0017]
【The invention's effect】
The present invention uses a placement mold in which a heat insulating material is attached to an inner surface and a lower end surface of a mold body made of a concrete-based molded plate, and uses the placement mold as an outer mold that also serves as an exterior material. Heat insulation for preventing thermal bridges is formed on both the upper and lower surfaces of the base of the external slab to form the outer wall of the heat insulation structure and prevent the occurrence of thermal bridges at the joint between the external slab and the outer wall protruding outside the outer wall. Because the thermal insulation for preventing thermal bridges is made continuous with the thermal insulation in the placement mold, an outer thermal insulation structure with excellent thermal insulation performance and no internal condensation can be constructed very efficiently. it is, as well the ability to effectively prevent the thermal bridge in the scramble portion of the outer wall and the outer slabs, skip the indoor side of the heat insulating material was necessary in the prior to be achieved a complete external insulation structure, interior It raised its construction or restricted it is possible to avoid such things as complicated, is very effective.
[0018]
In addition, a thermal bridge prevention heat insulating material is integrally attached to the bottom surface of the block body that functions as a baseboard or a drainer, and the block body is attached to the upper surface of the base of the external slab. It has the advantages of being able to protect itself, easy to install and excellent in appearance.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a building frame according to an embodiment of the present invention.
FIG. 2 is a diagram showing a schematic configuration of a driving form.
FIG. 3 is a cross-sectional view showing a building frame according to another embodiment of the present invention.
FIG. 4 is a view showing a conventional outer heat insulating structure.
[Explanation of symbols]
1 Formwork
2 Form body 4, 4a Heat insulation material 5 Outer wall 7 External slab 8 Heat insulation material for thermal bridge prevention 10 Block body

Claims (1)

An outer wall of an outer heat insulating structure using a placement mold formed by attaching a heat insulating material to an inner surface and a lower end surface of a mold body made of a concrete molding plate, and using the placement mold as an outer mold serving as an exterior material. And a thermal bridge prevention heat insulating material for preventing the occurrence of a thermal bridge at the joint between the outer slab and the outer wall projecting outside the outer wall is attached to the upper and lower surfaces of the base of the outer slab. It is a building with an outer heat insulating structure in which a heat insulating material for prevention is made continuous with the heat insulating material in the placing mold ,
The thermal bridge prevention heat insulating material is driven into the surface of the base lower surface of the external slab so that the thermal bridge thermal insulation is continuous with the upper end surface of the heat insulating material of the outer frame, and the base upper surface of the external slab mounting Rutotomoni attaching the block body which serves as a skirting or draining, its bottom surface of the block body thermal bridge preventing heat insulator leave attached together, the heat bridge preventing heat insulating material on the lower end surface of the mold body Further, a building having an outer heat insulating structure characterized by being continuous with the heat insulating material .

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