JP2008019635A - Moisture permeable outer wall structure of reinforced concrete outside insulation building, composite panel used and lower parting metal fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily remodel outer wall structure for restraining inside condensation of an outer wall into ventilating structure, by stretching a tile on an outside surface, when renewing the outer wall, by constructing a panel outside surface as moisture permeable structure by an inexpensive plastered wall, by stretching a ventilating outside insulation composite panel, in a reinforced concrete outside insulation building. <P>SOLUTION: This composite panel 1 is formed by layering with a cement plate 1A having moisture permeable resistance smaller than a heat insulation layer 1B, by arranging a ventilating strip groove G group in the foaming plastic-based heat insulation layer 1B. An outside insulation outer wall is formed by stretching the composite panel 1 on a concrete outer wall W. A strip groove G is formed as an air heat insulation layer by airtightly closing the lower end of the strip groove G group of the composite panel 1. A moisture permeable outside insulation outer wall is formed by applying external facing finishing having moisture permeable resistance smaller than the cement plate 1A to an outside surface of the cement plate 1A. When re-covered to a tile having large moisture permeable resistance as an external facing finishing material, this outer wall structure can be easily remodeled into a ventilating outside insulation outer wall, by opening the lower end of the strip groove G of the composite panel 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a moisture-permeable outer wall structure of a reinforced concrete outer heat insulating building, a composite panel used as an outer side-removal frame of a concrete outer wall when constructing the outer wall structure, and a waist parting fitting applied to the lower end of the composite panel More specifically, a moisture-permeable outer wall structure that can be easily refurbished to a breathable outer heat-insulating outer wall, a composite panel with a ventilation layer, and a waist close-up that allows easy renovation of the outer wall from a moisture-permeable structure to a ventilation structure It relates to metal fittings and belongs to the technical field of architecture.

Reinforced concrete exterior thermal insulation buildings are coated with a thermal insulation layer on the outside of the concrete frame, so that cracks of the concrete frame due to thermal stress due to solar radiation can be suppressed, and the concrete frame does not touch the outside air. It is possible to suppress the corrosion of steel bars and to improve the durability of the building, and to further improve the durability of the building. Because of its superior thermal insulation workability and thermal insulation efficiency, it is evaluated as an energy-saving building.
And in a reinforced concrete exterior heat insulation building, in order to reduce the condensation in the building that is the cause of mold and mites, and to make it a high performance building that is energy saving and excellent in health, the exterior heat insulation outer wall is transparent. Means for providing a wet structure or a breathable structure have been proposed.

As a moisture-permeable outer wall structure for outer heat insulation, there is a conventional example 1 shown in FIG. 10, and FIG. 10 is a method of dry bit system in the United States disclosed in non-patent literature (outlation wet outer heat insulation method). Thus, it has been proposed as a moisture-permeable outer wall structure.
That is, in Conventional Example 1 (FIG. 10), as shown in the figure, an adhesive resin mortar is applied to the entire surface of a concrete wall with a thickness of 1 to 3 mm, and a foamed plastic-based heat insulating material (bead method polystyrene foam heat insulating material) is layered. Next, an adhesive resin mortar for undercoating is applied to the entire surface in a form of embedding a mesh mesh on the surface of the heat insulating material to a thickness of 2 to 3 mm, and after drying the adhesive resin mortar, as an overcoat, an acrylic resin-based coating wall material Is applied by spraying or sprayed to form a 1 to 3 mm thick painted wall, moisture permeability is 126 m ² hmm Hg / g concrete outer wall (180 mm thickness): 22 m ² hmm Hg / g special Insulation (75mm thickness): 6.3m ² hmm Hg / g painted wall (3-6mm thickness): and moisture permeability resistance is reduced from the indoor side to the outdoor side. , Is a natural spill .

In addition, as the breathable outer wall structure of the outer heat insulation, the inventor of the present application has developed a breathable heat insulation panel and uses the panel as in Conventional Example 2 (FIG. 11).
That is, as shown in FIG. 11, Conventional Example 2 is a method in which a composite panel formed by laminating an extruded cement board provided with a groove for ventilation and a heat insulating layer is integrally attached to the outer wall of a concrete frame by using a formwork. At the lower end of the composite panel, a waist drainer having a ventilation function developed by the inventors of the present application and provided with a ventilation function is arranged as shown in FIG. As shown in FIG. 11 (A), the headboard having a ventilation function shown in Patent Document 2 developed by the person is arranged.

  And as shown in FIG. 11 (B), the upper and lower connections of each composite panel are continuous between the heat insulating layers of the upper and lower composite panels via the heat insulating material of the horizontal joint thickness, and within the interval between the upper and lower extrusion cement boards. The upper and lower groove grooves are outer wall structures developed by the inventor of the present application through a ventilation backer, with the front surface of the ventilation backer sealed to a horizontal joint, and the draft airflow a from the drainage is removed. , Flowing through the composite panel and discharging outward from the coping, suppressing moisture (water vapor) release from the concrete wall and heat insulation layer of the outer wall and overheating due to solar radiation of the extruded cement board as the exterior base material To do.

And in the window opened to an outer wall, the window frame provided with the ventilation function shown in patent document 3 which this inventor developed is arrange | positioned as FIG. 11 (D) and (E).
That is, as shown in FIG. 11 (E), the drainage of the window lower frame is provided with air holes in the bottom plate, and a ventilation backer is arranged between the top of the ventilation groove groove and the bottom plate of the composite panel under the window. A backer is placed and sealed on the front surface of the, and the rising air flow a in the groove is discharged outward from the drainage.
Further, as shown in FIG. 11 (D), the rain of the upper frame of the window is arranged in the window upper frame with a rain plate provided with air holes on the bottom plate, and the lower end of the ventilation groove and the upper surface of the rain drain of the composite panel on the upper side of the window. With a ventilation backer, a backer is placed on the front of the ventilation backer, the front of the backer is sealed, and the air flow a from the outside air to the rain gutter flows into the groove of the composite panel from the bottom of the gutter It is something to be made.

  FIG. 12 shows a composite panel in which the inventor has improved the composite panel used in Conventional Example 2 and is listed in Patent Document 4. As shown in FIG. A 25 mm thick extruded cement board with grooves on the inner surface is layered with a 75 mm thick heat insulating material, and the grooves are used as the upper and lower air circulation layers of the panel, with a cement board width of 490 mm and heat insulation. The material width is 500 mm, and the cement board is layered in such a form that one side edge protrudes by a small step and the other edge falls by a large step, and the groove depth is 13 mm and the groove width is 30 mm.

And FIG. 12 (B) is presented in Patent Document 4 as an improved air flow function type of FIG. 12 (A), and without increasing the thickness of the cement board, the groove of the extruded cement board, In other words, the increase in the depth of the ventilation groove was suppressed by suppressing the increase in the weight of the cement board, and the corresponding insulation groove having a depth of 10 mm was also formed on the surface of the heat insulating material opposite to the 13 mm depth of the cement board. And the groove for ventilation of the composite panel has a depth of 23 mm extending from the extruded cement board to the heat insulating material.
Japanese Patent No. 3664699 (Japanese Patent Laid-Open No. 2004-76332) Japanese Patent No. 3664697 (Japanese Patent Laid-Open No. 2004-60335) Japanese Patent No. 3770494 (Japanese Patent Laid-Open No. 2005-120786) Utility Model Registration No. 3084186 (issued March 8, 2002) Model record of Toho Leo Co., Ltd. “Asalation Wet External Insulation Method, Revised April 2004”

[Problem of moisture permeable outer heat insulating outer wall structure of conventional example 1 (FIG. 10)]
Upon insulation is bonded and fixed to the concrete outer wall, the adhesion performance of the concrete outer wall of the heat insulating material is as low as 2N / mm ^2, the exterior finish materials, paint thin coating lightweight, limited to thin paint wall material, exterior Low degree of freedom in finishing material selection.
In addition, outer heat-insulated reinforced concrete buildings have the advantage of high durability, but due to the long-term durability, the insulation material is partially reduced in thickness and the outer skin (painted wall, painted) is thin, so the joints of the heat insulating material In addition, since the heat insulating material has low heat resistance, it may soften at high temperatures in the summer, and the outer skin may be wrinkled, cracked, peeled off, and the outer wall is durable, safe, and heat insulating. There is a problem in terms.
In addition, the exterior finishing material uses wet undercoating, so construction work such as uneven coating thickness, wrinkle unevenness, uniform adhesion of the insulation to the concrete outer wall, management of undercoating and overcoating, etc. requires skill. It is a difficult task, and it is also a work that takes into account the outside air temperature and weather, the workability is poor, and the construction quality control is also difficult.

In addition, in order to achieve a moisture-permeable structure, it is necessary to reduce the moisture permeability resistance in order from the concrete outer wall to the heat insulating material to the painted wall, from the indoor side to the outdoor side, and the exterior finishing material is restricted by moisture permeability. Therefore, finishing materials with high moisture resistance, such as porcelain tiles and earthenware tiles with a sense of weight and luxury cannot be used.
In addition, the outer heat-insulated reinforced concrete building is highly durable, but the outer wall finishing material is a painted wall with low moisture permeability resistance, so it is necessary to repair the painted outer wall during long-term durability, and at the time of repairing the outer wall, There is a need to renovate the exterior of the building to a tile with a high-class design. However, when exterior walls with large moisture permeability resistance such as tiles are required to be renovated, molds and mites are also required. In order to meet the requirements of building owners, it is often the case that heat insulation and painted walls on the outside of the concrete outer wall are required. All of the above are peeled off, and a new air-permeable composite panel is required to be pasted on the outer surface of the concrete outer wall.

[Problem of breathable outer heat insulating outer wall structure of conventional example 2 (FIG. 11)]
The outer heat insulating outer wall structure shown in FIG. 11, which is being implemented by the applicant, can suppress internal dew condensation on the outer wall and can also suppress overheating of the outer wall exterior material due to solar radiation, and the exterior material should take moisture permeability into consideration. Although it is an epoch-making one that can be freely selected and provides energy-saving and high-quality buildings, as shown in FIG. 11A, in the headboard section, the headboard is fixed to the upper side of the heat insulating layer of the composite panel. The plate material needs to be thick enough to fasten with screws, and if the headboard bracket is beaten with strong wind, the heat insulation layer (the lower surface of the plate material) has a low strength and is likely to be displaced. There is a risk of loosening of screws fixed to the plate material and peeling of the head metal fittings.
In addition, since it is necessary to use a slate material such as asbestos cement board to prevent corrosion, the plate material has poor cutting processability, and the adhesion cost with the heat insulation layer is low. It ’s big.

  Further, as shown in FIG. 11B, the upper and lower connections between the composite panels are performed by air-tightly interposing a heat insulating plate as a separate member between the upper and lower heat insulating layers, and by extruding the upper and lower panels facing each other while maintaining a horizontal joint interval. The gap between the upper and lower edges between the molded cement boards (horizontal joint spacing) has a small cross section (width: 13 mm, height: 20 mm) and a large length (length across the panel width). When the composite panel is connected vertically and horizontally as an outer formwork of the concrete outer wall, such as the precise placement of a breathable backer (honeycomb backer) with a special structure, complicated and precise work is required. Therefore, workability of formwork work is poor.

In addition, in the drainage as shown in FIG. 11 (C), the airtight arrangement of the heat insulating plate between the heat insulating layer of the basic rising portion and the upper composite panel heat insulating layer, the position regulation of the packing material to the upper end of the lath mortar The arrangement and the position-defining arrangement of the mounting plate on the packing material are complicated.
In addition, the waist drainer is a work that locks the bottom plate to the mounting plate and fastens the rising plate at the rear end of the slope draining top plate to the mounting plate. Therefore, the arrangement work to the air introduction form in the uniform posture to the lower end of the composite panel of the waist drain is a complicated work requiring attention.

  Moreover, in the intermediate opening part of outer walls, such as a window, in order to provide an air communication function to the ventilation groove | channel of the upper composite panel and lower composite panel of an opening part, it shows in FIG.11 (D). As shown above, at the upper part of the window frame, the rain plate with air holes on the bottom plate is fixed to the upper frame of the window, and on the upper surface of the rain plate, air communication to the groove of the extruded cement plate of the composite panel is ensured. It is necessary to accurately place a ventilation bucker with a small cross section, and to close the front of the ventilation backer with a sealing through a plate-like backer, and to ensure ventilation function to the upper composite panel of rain drain Arrangement is poor in workability and complicated.

In addition, as shown in FIG. 11 (E), the drainer attached to the front face of the window lower frame is also connected to a ventilated backer having a small cross section between the drained bottom plate having air holes and the upper end of the groove of the composite panel. It is necessary to arrange the position in the form, position the plate backer on the front of the ventilation backer, and close the sealing of the front of the backer. It is bad and complicated.
Therefore, the breathable external heat insulating building shown in FIG. 11 becomes a high quality building with a high quality appearance by selecting a high-quality tile as an exterior finishing material, but the construction cost is as shown in FIG. It is much more expensive than the breathable exterior insulation building.

[Problems of the composite panel of Conventional Example 3 (FIG. 12)]
Extruded cement board for exterior base materials is a high-strength panel that has been extruded into a plate shape using cement, oxalic acid raw materials, and fiber-based raw materials as main raw materials, and is cured in an autoclave. Although it guarantees sufficient strength and guarantees a predetermined groove for ventilation, in order to secure a groove with a depth of around 13 mm, the plate thickness is 25 mm, and the height of the standard size is 2680 mm. The cement plate having a width of 490 mm is as heavy as 35 kg / m ² and has poor workability such as cutting and drilling (separator insertion hole, anchor bolt insertion hole).
The composite panel is a flat plate that is 75 mm thick and has a light insulation layer (about 1 kg) that is 75 mm thick and does not cause any insulation defects. It is difficult to form the m ² panel so as not to cause a collision defect, and there is a demand for weight reduction of the composite panel in terms of construction.

In addition, since the extrusion-molded cement board is an extrusion-molded product with a mold, any cross-sectional shape groove can be formed on a rigid structure cement board as designed and in a mass production system. During the process of drying, warping frequently occurs, and during press-pressing when wearing an integrated layer with a heat insulating layer, during transportation, when placing a linear form with a wide end pipe in the formwork assembly, placing concrete There is a risk of cracking due to warping.
Therefore, the extrusion-molded cement board has a short width (standard: 490 mm) in order to prevent warpage. Therefore, the composite panel width is short, and in the tensioned form on the concrete outer wall surface, the outer wall is joined in parallel. There are many joints (vertical joints), which is disadvantageous in finishing, and there is a demand for widening the composite panel from the construction side.

  In addition, the molded cement board that bears the required rigidity of the composite panel is provided with a groove for ventilation, and in the form of tension to the outer wall, between the cement boards of the upper and lower composite panels, the collision loss prevention during construction, Since it is essential to form and maintain horizontal joints (intervals) in order to prevent mutual breakage of cement boards at the time of an earthquake in the completed building, the upper and lower cements between the upper and lower connection parts of the composite panels, that is, the horizontal joint parts. As shown in the description of the conventional example 2 (FIG. 11), the application of the connection between the upper and lower grooves between the plates adopts a special honeycomb honeycomb cross-section honeycomb ventilation backer. It was possible only by a technical method developed by a person, and was a complicated and elaborate work, and a difficult work with low productivity.

  Also, even in the improved type of FIG. 12B, the groove on the heat insulating layer side is 10 mm deep with few heat insulation defects, but the groove on the extruded cement board is molded, Since the groove is a notch process as a post-processing on the molded plate material, the layering according to the design shape of the extruded cement board and the heat insulation layer becomes a complicated and precise work, which improves the ventilation function. From the point of view, from the viewpoint of insulation deficiency, and from the viewpoint of production, that is, although the effect of improving the ventilation function is small, production is complicated and difficult, and the insulation function loss due to the groove notch is also accompanied, so the implementation effect However, since the extruded cement board is provided with a groove in the ventilation structure imparting construction by the composite panel stuck to the concrete outer wall, or equivalent to the case of adopting the composite panel of FIG. More complicated and difficult to produce Since the lower work, in the construction of the conventional example 2 applicant developed external wall structure (Fig. 11), it is carried out in composite panel type of FIG. 12 in the conventional example 3 (A).

  The present invention solves or improves the above-mentioned problems (issues) of Conventional Example 1, Conventional Example 2, and Conventional Example 3, and is highly durable by adopting the newly developed composite panel. Reinforced concrete exterior heat insulation building is initially constructed in a moisture-permeable outer wall structure with low construction cost, and it can be easily made according to the desire of the building owner, such as when it is necessary to renovate the outer wall during durability or when it is desired to renew the high-grade exterior building It is possible to renovate to a breathable outer wall structure such as tiling with a high-class feeling, and to provide a rational outer heat insulation building that can meet the demands of consumers.

  The invention of the moisture permeable outer wall structure of the present application is a moisture permeable outer wall structure in which a dry-contact type breathable heat insulating composite panel 1 is stretched on the outer wall W of a reinforced concrete building, for example, as shown in FIG. As shown in FIG. 6, on the layering surface 1S of the plate-like heat insulating layer 1B of the foamed plastic-based heat insulating material, the ventilation groove G group and the layered thick portion 1C group are alternately arranged in the vertical direction. And it arrange | positions so that both sides may become the thick part 1C, and layered the exterior base material 1A of the shaping | molding thin rigid board whose moisture-permeable resistance is smaller than the heat insulation layer 1B on the layering surface 1S, The composite panel 1 is stretched on the concrete outer wall W in the form of a vertical and left-right abutting connection between the heat insulating layers 1B of each composite panel 1 and each groove G extends from the lower end of the lowermost composite panel 1 to the uppermost end. The thermal insulation layer 1B is stretched on the concrete outer wall W in the form of communication to the upper end of the composite panel 1, and the bottom At the lower end of the composite panel 1, each groove G is closed in an airtight manner, and an exterior finishing material 2 having a moisture permeability resistance smaller than that of the exterior base material 1A is disposed on the exterior base material 1A of the composite panel 1. is there.

In this case, the composite panel 1 can be stuck to the concrete outer wall W by post-pasting to the outer surface of the concrete outer wall W. Typically, however, the composite panel 1 is attached to the concrete outer wall W during the construction of the concrete frame. It is integrated with the concrete outer wall W by using it as a disposal frame in the outer mold.
Moreover, the heat insulation layer 1B may typically employ a 75 mm thick plate (moisture permeability resistance: 52.5 m ² hmm Hg / g) of an extruded polystyrene foam of JIS A9511.
Moreover, even if the groove G is not airtightly sealed at the upper end of the uppermost composite panel, if only the lowermost end of the groove G is airtightly sealed, the air in the groove G causes convection. In order to become a non-air-insulating layer, an inexpensive conventional angle headboard or open headboard may be placed on the upper end of the uppermost composite panel. Japanese Patent No. 3664697) may be provided.

The molded thin rigid plate exterior base material 1A is a structural material that guarantees the strength of the composite panel 1. Therefore, it can withstand a concrete type frame and has the strength, impact resistance, and dimensional stability as an exterior base material of the outer wall. It is sufficient if it is satisfying and lightweight, and its moisture permeability resistance is smaller than that of the heat insulating layer 1B (75 mm thickness), specific gravity 0.9 to 1.1, thickness 12 mm, bending strength 100 to 120 kgf / cm ² , Magnesium cement plate 1A-1 having a moisture permeability of 14 m ² hmm Hg / g; specific gravity of 0.8 to 1.1, thickness of 12 mm, bending strength of 100 to 120 kgf / cm ² , moisture permeability of 7.16 m ² hmm Hg / g of calcium silicate plate 1A-2; phenol resin plate 1A- having a specific gravity of 0.9 to 1.1, a thickness of 13 mm, a bending strength of 100 to 120 kgf / cm ² , and a moisture resistance of 3.33 m ² hmm Hg / g. 3: is preferred.
Further, as the exterior finish material 2, cement and inorganic aggregates are the main raw materials, and the product name FMX (moisture permeability resistance: 7.5 m ² ) manufactured by Fukko Co., Ltd., a glazed wall finish with a standard coating thickness of about 3 mm. hmm Hg / g), trade name magic coat (moisture permeability resistance: 13.0 m ² hmm Hg / g), trade name Düssel (moisture permeability resistance: 13.5 m ² hmm Hg / g), etc. may be employed.

Therefore, in the outer wall structure of the present invention, the moisture permeability resistance of the standard 180 mm thick concrete wall W is 126 m ² hmm Hg / g, and the moisture permeability resistance of the 75 mm thick heat insulating layer 1B is 52.5 m ² hmm Hg / g. The moisture permeability resistance of the exterior base material 1A is 3.33 to 14 m ² hmm Hg / g, and the moisture permeability resistance of the painted wall exterior finish material 2 having a thickness of 3 mm is 7.5 to 13.5 m ² hmm Hg / g. Since the moisture permeability resistance of each component layer decreases sequentially from the indoor side to the outdoor direction, the indoor moisture can flow out naturally to the outside, and the condensation in the building, which is the cause of mold and mites, can be suppressed. But it provides excellent high performance buildings.
And each groove G group notched and formed in the heat insulation layer 1B of the composite panel 1 has prevented the draft rising airflow a from entering from the lowermost end, so that the air in each groove G does not rise and discharge. Even though the heat insulation layer 1B becomes an air layer and the groove G group causing the heat insulation defect is notched, the sealed air of the groove G group has a heat insulating material function, so there is no heat insulation defect. Demonstrate the heat insulation function.

In addition, since the outer wall structure of the present invention is an external insulation, it provides a highly durable concrete building. When a tile exterior finish with a feeling is desired, the painted wall is renovated to an expensive tile, and only the opening of the groove G group at the lower end of the composite panel 1 at the lowermost end of the outer wall is opened. The groove G exhibits a ventilation layer function, and the outer heat insulating outer wall can be a breathable outer wall.
If the groove G group is provided with a ventilation layer function, a heat insulation defect due to the notch of the groove G group occurs in the heat insulation function surface, but the exterior finishing material 2 no longer considers any moisture permeability resistance value. The exterior finish can be selected according to the preference of the customer (owner).
In other words, according to the present invention, from the viewpoint of construction costs, the building owner initially constructed a low-cost moisture-permeable outer wall building, which has a high-class feeling as appropriate, and is excellent in preventing condensation and preventing overheating of exterior materials. In addition, it can be repaired at low cost.

Further, in the invention of the outer wall structure, as shown in FIGS. 5 and 6, the composite panel 1 has the heat insulation layer width BW and the exterior base material width AW equal, and the heat insulation layer height Bh is the exterior base. In the width direction, the heat insulating layer 1B projects a small step d1 on one side and enters the small step d1 on the other side. In the height direction, the heat insulating layer 1B has a large step on the upper end. d3 protrudes and enters a small step d2 at the lower end, and each composite panel 1 has a top-and-bottom and left-and-right connection that is a phase-separated connection, and a horizontal joint dx is formed between the upper and lower exterior base materials 1A at the upper and lower connection portions. Is preferred.
In this case, in the standard composite panel 1, the heat insulation layer width BW and the exterior base material width AW are 900 mm, the heat insulation layer height Bh is 2700 mm, the exterior base material height Ah is 2680 mm, and the small step d1 is 10 mm. The large step d3 is 40 mm, and the small step d2 is 20 mm.

  Accordingly, the parallel abutment between the composite panels 1 is as shown in FIG. 3B. The abutting abutment between the heat insulating layers 1B simultaneously becomes an abutting abutment of the exterior base material 1A, and the abutting abutting between the heat insulating layers 1B. The abutting contact interface is on the surface of the exterior base material 1A, and the vertical connection between the composite panels 1 is as shown in FIG. 3A. The contact between the heat insulating layers 1B is the horizontal joint between the exterior base materials 1A. Since the abutting contact interface between the heat insulating layers 1B is on the surface of the exterior base material 1A, the upper and lower connection work between the composite panels 1 causes a collision defect of the exterior base material 1A. The top and bottom and left and right phase-missing connections of the composite panel 1 have good workability.

When the concrete is cast using the composite panel 1 as a discarded frame, the concrete liquid flowing out from the abutting contact interface of the heat insulating layer 1B is closed at the surface of the exterior base material 1A. Contamination with the concrete effluent can be minimized.
In addition, the horizontal joint dx interval between the exterior base materials 1A at the upper and lower connection parts of the composite panel 1 can be obtained by extending a conventional cross-sectional rectangular backup material 12B to the exposed portion of the heat insulating layer 1B and closing the outer side with the sealing 12. The upper and lower corresponding groove groups G serve as a sealed air layer in a communication form, and the groove group G serves as an air heat insulating layer.

Further, in the invention of the outer wall structure, as shown in FIG. 4C, the composite panel 1 on the upper side of the upper frame 10A of the window 10 has a transverse groove that communicates the groove G group with the lower end of the heat insulating layer 1B. G ′ is arranged, and the lower composite panel 1 on the lower frame 10B is provided with a transverse groove G ′ communicating with the groove G group at the upper end of the heat insulating layer 1B. It is preferable that the ascending air flow a of the groove group G can be bypassed through the window rigid frame 10C from the upper panel upper composite panel 1 to the window upper frame.
In this case, the composite panel 1 on the upper side of the window upper frame and the composite panel on the lower side of the window lower frame are shortened to the required dimensions on the basis of the panel layout drawing, but when forming the shortened panel, the groove G What is necessary is just to form the transverse groove G 'at the time of the notch with a cutter of a group, and the transverse groove G' should just form the groove G and the same depth and width.

  Therefore, in the stage of the moisture permeable outer wall structure in which the groove G group is closed in an airtight manner at the lower end of the lowermost composite panel 1, the transverse groove G ′ is sealed in the same manner as the groove G group. If a thermal insulation function is exhibited as an air layer and the airtight stop of the groove G group at the lower end of the lowermost composite panel 1 is opened to allow the draft rising air flow a to flow into the groove G group, that is, If the air-permeable outer wall structure is used, it is possible to ventilate the window 10 in the lower composite panel 1 and the upper composite panel 1 through the transverse groove G ′. 1 is a breathable panel that does not require a draining or raining arrangement with a special ventilation function, as shown in FIGS. 11 (D) and 11 (E) of Conventional Example 2.

  In the invention of the outer wall structure, as shown in FIG. 8, the foundation composite panel 1 'stretched on the concrete foundation rising portion 5 is composed of a heat insulating layer 1B' without the groove G and an exterior base material 1A. At the upper end, the heat insulating layer 1B ′ protrudes with a large step d4, and the front surface of the protruding portion of the large step d4 leaves the front surface fd of the small step d2, and the groove depth Gd of the upper composite panel 1 A notch 7G having the same depth is provided over the entire width in the horizontal direction, and the space between the upper edge eu of the exterior base material of the basic composite panel 1 'and the lower edge ed of the exterior base material of the composite panel 1 is airtight. It is preferable to close.

In this case, typically, as shown in FIG. 8A, the large step d4 is 65 mm, the small step d2 is 20 mm, the cement plate upper end eu of the basic composite panel 1 ′ and the cement plate lower end ed of the composite panel 1 The distance d7 is 45 mm.
Even if the cutout 7G of the heat insulating layer 1B ′ of the basic composite panel 1 ′ is air-tightly sealed with the sealing 12 as shown in FIG. 1, the upper cement plate lower end side ed and the lower cement plate upper end side eu are shown in FIG. As shown in (B), the airtight closing of the lower end of the groove G group of the upper composite panel 1 can be achieved even if it is air-tightly closed by the waist cut-off, and the notch 7G has a full width on the lower surface of the groove G group. Therefore, if the airtight stopper of the notch 7G is opened, the draft rising air flow a from the notch 7G to the entire groove G can be supplied.
Therefore, the presence of the front surface fd of the small step d2 of the heat insulating layer 1B 'of the basic composite panel 1' and the presence of the notch 7G are the airtight sealing work and opening of the groove G group at the lower end of the lowest composite panel 1. Work becomes easy.

Further, the airtight closing between the exterior base material upper end side eu of the basic composite panel 1 ′ and the exterior base material lower end side ed of the composite panel 1 is a backup material in the notch 7G as shown in FIG. 12B is installed horizontally, and the space between the lower end ed of the exterior base material of the upper composite panel 1 on the front surface of the backup material 12B and the upper end eu of the exterior base material of the basic composite panel 1 ′ is airtightly closed with the sealing 12. Is preferred.
In this case, as shown in FIG. 8A, the notch 7G has a width dimension extending from the bottom surface ds to the bottom edge ed of the cement plate because the upper surface of the small step d2 (20 mm) defines the bottom surface ds of the notch 7G. A conventional backup material 12B having a rectangular cross section (d7−d2 = 25 mm) is placed, and the front surface of the backup material 12B may be filled with a sealing 12 as shown in FIG. Airtight closing between ed and the upper end eu of the lower cement plate can be easily performed at low cost, and the removal work of the sealing 12 and the backup material 12B when repairing to a breathable outer wall structure is also easy.

  Further, in the outer wall structure, as shown in FIG. 8C, between the upper end side eu of the exterior base material 1A of the basic composite panel 1 ′ and the lower end side ed of the exterior base material 1A of the upper composite panel 1 In addition, it is preferable that the attachment plate piece 9 is fastened in a passing manner, and the waist parting fitting 7 </ b> A is fitted to the front surface of the attachment plate piece 9.

In this case, since the mounting plate piece 9 has a small lateral length (standard: 60 mm) and is arranged at predetermined intervals (standard: 500 mm), the notch 7G of the basic composite panel 1 ' 9A, the waist parting bracket 7A has an airtight space between the lower end ed of the upper exterior base material 1A and the upper end eu of the lower exterior base material 1A over the entire width of the outer wall. It will be closed.
Since the waist parting bracket 7A is fitted to the mounting plate piece 9, it is easy to fit the waist parting bracket 7A and airtight mounting with a conventional sealing means, and it is improved to a breathable outer wall structure. At that time, it is easy to remove the waist parting bracket 7A, and as shown in FIG. 7 (C), separately prepare a waist parting part fitting for ventilation structure having a fitting structure similar to that of the waist parting bracket 7A. If so, the renovation from the breathable outer wall to the breathable outer wall can be carried out rationally.

Further, as shown in FIG. 7A, the mounting plate piece 9 is a U-shaped bracket having a back plate 9F, a horizontal upper piece 9U, and a horizontal lower piece 9D. The horizontal lower piece 9D has a mounting hole H9, and the groove protrusions 9E protrude from the back plate 9F at the lower part of the horizontal upper piece 9U and at the upper part of the horizontal lower piece 9D. It is preferable to form an upward engaging groove 9G in the lower groove protruding piece 9E and a downward engaging groove 9G in the upper groove protruding piece 9E.
In this case, as shown in FIG. 8C, the horizontal upper piece 9U and the horizontal lower piece 9D are connected to the upper exterior base material lower edge ed and the lower exterior base material upper edge ed with screws sc through the attachment holes H9. Since the upper and lower groove protruding pieces 9E are fixed, the protruding length of the upper and lower groove protruding pieces 9E should be a length that does not interfere with the mounting hole H9.

Therefore, as shown in FIGS. 8B and 8C, the height 9h of the mounting plate piece 9 is aligned with the dimension d7 (standard: 45 mm) of the upper end side eu and the lower end side ed through the packing material 14P. The back plate 9F is fastened to the front surface fd of the heat insulating layer 1B ′ via the double-sided adhesive tape 14A, and the mounting plate piece 9 can be fastened with the screw sc. The mounting plate piece 9 can be fixed relatively easily without being moved by the vibration at the time of fastening of the sc.
Since the waist parting bracket 7A is simply fitted into the upper and lower engaging grooves 9G as shown in FIG. 8D, the workability of attachment and removal as necessary is improved.

  Further, as shown in FIG. 7 (B), the waist parting bracket 7A has a cross-sectional shape, a front falling plate 7F, a horizontal piece 7T from the upper end of the falling plate 7F to the rear, and a downward facing for subsequent sealing. The L-shaped piece 7B is provided with a horizontal piece 7T from the lower end of the falling plate 7F to the rear and an upward L-shaped piece 7B for receiving the ceiling, and from the rear surface of the falling plate 7F, an upper inclined plate 7U and a lower portion It is preferable that an upward fitting projection piece 7E is provided at the rear end of the inclined plate 7U, and a downward fitting projection piece 7E is provided at the rear end of the bottom plate 7D.

In this case, the waist part 7A is an extruded product of metal sheet metal, and the height 7h of the falling plate 7F is a dimension d7 (standard) between the lower end ed of the upper exterior base material and the upper end eu of the lower exterior base material. The dimension Eh between the upper and lower fitting projection pieces 7E is slightly larger than the dimension Gh between the upper and lower engagement grooves 9G of the mounting plate piece 9.
Accordingly, as shown in FIG. 8 (D), the waist parting bracket 7A can be easily elastically fitted to the mounting plate piece 9 by pressing the inclined plate 7U and the bottom plate 7D to narrow the interval. As shown in Fig. 4, the upper and lower sealing plate L-shaped pieces 7B can airtightly close the lower end ed of the upper cement plate (exterior base material) and the upper end eu of the lower cement plate, and the front falling plate 7F offers a novel parting design.

As shown in FIG. 6A, the composite panel 1 used in the invention of the moisture permeable outer wall structure is obtained by laminating a sheet-like heat-insulating layer 1B of a foamed plastic-based heat-insulating material and an exterior base material 1A of a molded thin rigid plate. Yes, the heat insulating layer 1B has the layered surface 1S, the ventilation groove G group and the layered thick part 1C alternately in the vertical direction, and both side parts become the thick part 1C. In parallel, the thick portion 1C occupies an area of 50 to 60% of the layer attachment surface 1S of the heat insulating layer 1B.
In this case, the plate-like heat insulating layer 1B of the foamed plastic-based heat insulating material can be layered and integrated with the exterior base material 1A, and heat-insulates the concrete outer wall W. The extruded polystyrene foam, rigid urethane foam, etc. A foamed plastic-based heat insulating material of JISA9511 is preferable, and typically, a 75 mm thick insulating material of extruded polystyrene foam of JISA9511 is used.

Moreover, the exterior base material 1A of the molded thin rigid plate is the minimum thin rigid plate (cement plate) that can withstand the concrete type frame and satisfies the strength, impact resistance, and dimensional change rate as the exterior base material of the outer wall. The plate thickness is 15 mm or less: light weight (10 kg / m ² ), high strength (mainly composed of magnesium oxide (Mg) and silica sand, embedded with glass fiber nonwoven fabric on both sides, as shown in FIG. 6 (B) 100kgf / cm ² ) 12mm-thick magnesium cement plate 1A-1: As shown in Fig. 6 (C), crushed sand, slaked lime, and pulp are dispersed in water and formed into layers in the manner of godling, and generated by autoclave curing Silica with light weight (13.2 kg / m ² ), high strength (100 kgf / cm ² ) and 12 mm thickness, with vermiculite (Va) added to calcium oxalate (Ca) base material generated by combining with calcium Calcium plate 1A-2: Light weight (12.4 kg / m ² ), made mainly of volcanic gravel (Ka) and fly ash shown in FIG. 6 (D), and hardened with phenol resin using glass fiber as a reinforcing material The phenol resin plate 1A-3 having a high strength (100 kgf / cm ² ) and a thickness of 13 mm is preferable.

Further, the groove G has a function of releasing moisture (water vapor) penetrating into the heat insulating layer 1B and a function of suppressing the high temperature of the exterior base material (cement plate) due to the outside air by the air flow through the inner surface. Therefore, in order to collect and release moisture in the heat insulating layer 1B, and to suppress the heat increase due to the solar radiation of the exterior base material 1A, the groove G group preferably has an evenly distributed arrangement. The uniform arrangement of the groove width of the groove G (standard: 50 mm) and the width of the thick portion 1C is preferable.
The depth Gd (standard: 15 mm) of the groove G is the maximum when the draft air flow rate is 20 mm from the interface of the groove G, that is, when the groove depth Gd is 40 mm. The greater the depth Gd is, the larger the air flow function and the proportion of deficient heat insulation function are in a trade-off relationship. Therefore, the loss of the heat insulation function of the heat insulation layer 1B is minimized, and the minimum required rise Decisions should be made to ensure airflow.

Therefore, in the composite panel 1 of the present invention, since the grooves G for ventilation are arranged only on the layer attachment surface 1S of the heat insulating layer 1B, even a bonding area necessary for bonding and holding the exterior base material 1A is secured. For example, by taking into account the hindrance to heat insulation defects, machining the vertical parallel grooves G and, if necessary, the transverse grooves G ′ and the biased grooves by cutting into the heat insulating plate that is easy to cut. It is possible to form the groove G in a desired form such as addition.
Moreover, since the thick part 1C occupies 50% or more of the layer attachment surface 1S and the both sides are the thick parts 1C, the heat insulating layer 1B is strong and does not peel off from the exterior base material 1A. Layering is possible.
Then, a flat thin rigid plate may be layered on the layering surface 1S on which the strips G of the heat insulating layer 1B are arranged, which is wider and lighter than the extruded cement plates of the conventional examples 2 and 3. As long as it is present, the exterior base material 1A can be selected and adopted according to the desires of the consumer, and the consumer's preference for the outer wall can be freely met.

  In addition, when the composite panel 1 covers the outer wall with the outer heat insulation, it is essential that the upper and lower and left and right connections of each composite panel be implemented in the form of abutting contact between the heat insulating layers 1B. Since the groove exists only in the layer 1B, as shown in FIG. 1, if the vertical connection between the composite panels is performed by the abutting of the heat insulating layer 1B, at the same time, the groove G group also becomes a vertical abutting communication form. In the horizontal joint dx portion, it is only necessary to close the open part of the front surface of each groove G group, and a conventional plate-like backer (backup material) 12B is brought into contact with the front surface of the heat-insulating layer 1B and only the sealing 12 is filled. Thus, the panel connection ensures vertical communication of the groove G.

In the composite panel 1, as shown in FIG. 5B, the width BW of the heat insulating layer 1B and the width AW of the exterior base material 1A are equal, and the height Bh of the heat insulating layer 1B is equal to the exterior base material. In the width direction, the heat insulating layer 1B protrudes from the small step d1 on one side and enters the small step d1 on the other side. In the height direction, the heat insulating layer 1B It is preferable that the large step d3 protrudes and the small step d2 enters at the lower end.
In this case, in the standard panel, the heat insulation layer 1B and the exterior base material 1A are 900 mm wide, the heat insulation layer height Bh is 2700 mm, the exterior base material height Ah is 2680 mm, the small step d1 is 10 mm, and the large step d3 is 40 mm, and the small step d2 is 20 mm.

As shown in FIG. 3 (B), the abutting contact between the heat insulating layers 1B becomes the abutting contact of the exterior base material 1A at the same time. If it is easy and used as a concrete-casting frame, it becomes a phase-breaking connection that can suppress the outflow of the cement liquid from the cast concrete through the joint interface, and no vertical joint spacing occurs.
Further, as shown in FIG. 3 (A), the upper and lower connections between the composite panels 1 are abutting contact between the heat insulating layers 1B, and the exterior base material 1A has a horizontal dimension of step d3 (40 mm) -step d2 (20 mm). A phase-deficient connection with a ground dx width (20 mm) is opened, and the upper and lower connection arrangement work at the time of forming the composite panel 1 is easy.

A gap (20 mm) is generated between the cement plates 1A at the upper and lower connecting portions, but the vertical grooves G communicate with each other by the vertical contact of the heat insulating layer 1B at the connecting portions, and the horizontal joint dx intervals. If the conventional flat backup material 12B is brought into contact with the front surface of the heat insulating layer 1B and the front surface of the backup material 12B is closed by sealing, a horizontal joint dx that ensures vertical communication of the vertical grooves G group is obtained.
Therefore, by using the composite panel 1 of the present invention, it becomes an outer wall structure that has no vertical joints, is easy to finish the exterior, is easy to form, and easy to guarantee the ventilation function of the vertical grooves G group.

The exterior base material 1A of the composite panel 1 has a thickness T2 of 12 to 13 mm, a specific gravity of 0.8 to 1.1, a moisture permeability resistance of 3 to 14 m ² hmm Hg / g, and a bending strength of 100. It is preferably ˜120 kgf / cm ² .
In this case, a cement board (exterior base material) 1A having a thickness of 12 to 13 mm and a specific gravity of 0.8 to 1.1 has a weight of 9 to 15 kg per 1 m ² , and is a conventional extruded cement. Since the weight of the composite panel of the present invention is less than half the weight of the board (35.0 kg / m ² ), the cement panel 1A is far more than the cement board width (490 mm) of the conventional composite panel (FIGS. 11 and 12). Even if it is wide (900 mm), since it is lighter than the conventional composite panel, handling of the composite panel 1 becomes easy and the workability of panel attachment is improved.
If the bending strength is 100 kgf / cm ² , it will exhibit sufficient strength as a discarded frame and an exterior base material for the outer wall, and if the moisture permeation resistance is 3 to 14 m ² hmm Hg / g, cement The range of selection between the cement board 1A and the exterior finishing material 2 is widened by the combination of the board 1A, the coating wall material, and the spray coating material in consideration of moisture permeation resistance.

In the composite panel of the present invention, as shown in FIG. 6A, the heat insulating layer 1B has a thickness T3 of 75 mm, a depth Gd of the groove G of 12 to 20 mm, and a width a1 of the groove G of Preferably it is 50 mm.
The thickness of the heat insulating layer 1B may be determined so that the heat-flow resistance (Rt) of the outer wall integrated with the cover exhibits the specified value (standard for wall heat-transfer rate in the next-generation energy-saving standards). The standard of I district (Hokkaido), which has the highest standard value, is the heat flow resistance Rt (m ² h ° C / kcal) of 1.76m ² h ° C / kcal or more, and the outer wall W of 180mm is 75mm thick. The outer wall with the heat insulation layer 1B is formed with a groove G of 20mm in depth, and even as a breathable outer wall, it satisfies the standard value of Japan I area (Hokkaido), All other districts with low standards will be fully satisfied.

Therefore, when the outer wall provided with the panel is remodeled from a moisture permeable type to a vented type, the heat insulation defect that occurs in the groove G having a depth Gd of 12 to 20 mm is the specified heat flow in the I district (Hokkaido). Resistant Rt (1.76 m ² h ℃ / kcal or more) can be provided, and at the same time, in the groove group G, dew condensation in the composite panel is prevented and overheating of the cement board (exterior base material) 1A is suppressed. Therefore, it is possible to generate an ascending air flow (draft air flow) at a speed of 0.026 to 0.034 m / s, which is much larger than 0.01 m / s.
Moreover, since the width a1 of the groove G for collecting and releasing the water vapor (humidity) in the heat insulating layer 1B is 50 mm, the thick part 1C widths a2 and a3 arranged alternately with the groove G are also 50 mm or 66. .7 mm width, and the groove G group can uniformly release moisture (water vapor) in the heat insulating layer 1B, can uniformly suppress overheating of the exterior base material 1A, and the thick part 1C has Provides a sufficient space for exhibiting adhesive force, and as shown in FIG. 5 (B), each bolt insertion hole hb and separator insertion hole hs can be uniformly distributed on the panel surface at the center of the thick portion 1C. To.

  Further, the invention of the waist parting bracket comprises a waist parting bracket 7A and a mounting plate piece 9. The waist parting bracket 7A has a cross-sectional shape of a front falling plate 7F, as shown in FIG. From the upper end of the falling plate 7F, a downward L-shaped piece 7B for receiving a ceiling is provided downward via a horizontal piece 7T to the rear, and from the lower end of the falling plate 7F, an upward direction is provided via a horizontal piece 7T to the rear. An upward L-shaped piece 7B for receiving a ceiling protrudes from the rear surface of the falling plate 7F, and an upper inclined plate 7U having an upward protruding piece 7E at the tip and a downwardly provided protruding piece 7E at the tip. As shown in FIG. 7 (A), the mounting plate piece 9 is a metal plate molded product protruding from the bottom plate 7D, and the cross-sectional shape of the mounting plate piece 9 protrudes outward from the back plate 9F and the upper end of the back plate 9F. A horizontal upper piece 9U provided with H9 and a mounting hole H9 protruding outward from the lower end of the back plate 9F were provided. A flat lower piece 9D, a lower L-shaped groove protruding piece 9E at the lower part of the horizontal upper piece 9U, and an upward L-shaped groove protruding piece 9E at the upper part of the horizontal lower piece 9D, respectively. It projects outward from 9F and has a dimension that does not interfere with the mounting hole H9 of the upper and lower horizontal pieces, and the dimension Gh between the upper and lower grooves 9G connects the inclined plate 7U and the bottom plate 7D of the waist parting bracket 7A. It is a dimension that is elastically fitted and held by an elastic spreading force.

In this case, typically, the mounting plate piece 9 is an aluminum extruded product having a general wall thickness of 2 mm, and the waist parting bracket 7A is an aluminum extruded product having a general wall thickness of 1.5 mm.
Further, the height 9h of the mounting plate piece 9 is a height (standard: 40 mm) that can be fitted into a distance d7 (standard: 45 mm) between the upper end eu and the lower end ed of the cement plate between the basic composite panel 1 ′ and the composite panel 1. The height 7h (standard: 45 mm) of the falling plate 7F of the waist parting bracket 7A is aligned with the upper and lower cement plate edge intervals d7.
Therefore, as shown in FIG. 8 (B), the mounting plate piece 9 has the packing 14P for adjusting dimensions placed on the upper end eu of the cement plate of the basic composite panel 1 ', and the back plate 9F with the double-sided adhesive tape 14A. The horizontal upper piece 9U and the horizontal lower piece 9D may be fixed to the upper and lower cement plate end edges eu and ed with screws sc as shown in FIG. 8C.

Further, as shown in FIG. 8D, the waist parting bracket 7A may be elastically fitted into the engaging groove 9G of the mounting plate piece 9 by pressing the inclined plate 7U and the bottom plate 7D with a jig 14B. The attachment of the piece 9 and the fitting operation of the waist parting bracket 7A to the attachment plate piece 9 can be easily performed.
Then, as shown in FIGS. 9A and 9B, if the sealing 12 is filled between the upper and lower L-shaped pieces of the waist parting bracket 7A and the upper and lower cement plates provided with the exterior base material, the groove G of the composite panel 1 is obtained. The group can be closed in an airtight manner, and the outer wall structure is a moisture permeable outer wall in which each groove G is a heat insulating layer of a sealed air layer.

In the outer wall structure of the present invention, only the composite panel 1 for covering the concrete outer wall W with heat insulation is used as a composite panel having a ventilation function. Since the ventilation function is not used and the exterior finishing material is constructed as a moisture-permeable outer wall with an inexpensive paint finish, the initial construction cost is greatly reduced, and an outer heat insulating outer wall that does not cause internal condensation is obtained. It is done.
And in a highly durable exterior heat insulating building, it has a high-class feeling that employs exterior finishing materials such as porcelain tiles at the time of appropriate modification of outer walls, such as the timing of repairing exterior finishing materials required during durability, and It can be easily modified to a building with a breathable outer wall that does not cause internal condensation.

In addition, the moisture-permeable outer wall structure of the present invention coats the moisture-permeable exterior base material (cement board) on the outer surface of the heat-insulating layer 1B and applies a coating wall to the surface of the cement board 1A. Changes in shape due to durability can be suppressed, and cracking and peeling of the exterior finishing material such as a conventional moisture-permeable outer wall (conventional example 1) can be suppressed.
In addition, since the composite panel 1 itself can be firmly fixed by the concrete outer wall W and a fall prevention anchor or the like, even if it is a moisture permeable outer heat insulating outer wall, it has excellent wind pressure resistance and provides a highly durable outer wall structure.
And when renovating to the ventilation layer type outer heat insulation type, special and new panel with built-in ventilation function was adopted in advance, so that special ventilation to the composite panel above and below the window frame as in Conventional Example 2 There is no need for structure imparting means and it can be reasonably modified.

Further, in the heat insulating layer 1B, the applied composite panel is a trade-off between the heat insulation defect due to the arrangement of the groove G group as the ventilation layer and the size of the groove G necessary for generating the draft rising air flow a. Since the relationship has been skillfully solved in a well-balanced manner, the groove G group can be used as a sealed air layer to exert a heat insulating function, and from the moisture-permeable type that does not cause any heat insulation defect, the air flow that causes the heat insulation defect using the groove G as a ventilation layer. Even if it is modified to a mold, it is possible to suppress heat insulation defects within a range that can be used.
In addition, the composite panel of the present invention is lighter and wider than the breathable composite panels of the conventional examples 2 and 3 that the applicant is implementing. Therefore, it is easy for the contractor to handle and the workability is improved.

[Composite panel 1 (FIGS. 5 and 6)]
The composite panel 1 is typically used as an outer mold frame of the concrete outer wall W. FIG. 5A is a perspective view seen from the cement board (exterior base material) 1A side. (B) is the front view seen from the cement board side, FIG. 6 (A) is a longitudinal cross-sectional view, and FIG. 6 (B) is the B section enlarged view of FIG. 6 (A).
As shown in FIG. 6A, the composite panel 1 is a laminated panel of a heat insulating layer 1B and a cement board 1A, and the heat insulating layer 1B is an extruded polystyrene foam (JISA9511) having a thickness T3 of 75 mm. As shown in FIG. 6 (B), the cement board 1A can use a magnesium cement board 1A-1 mainly composed of magnesium oxide and cinnabar sand and embedded in a glass fiber nonwoven fabric GC on both sides, and has a thickness T2 of 12 mm. , Specific gravity 0.9-1.1, bending strength 100-120kgf / cm ² , moisture permeability 14m ² hmm Hg / g molded thin and rigid plate, standard panel 1 has a heat insulation layer width BW and cement Both the plate widths AW are 900 mm, the heat insulation layer height Bh is 2700 mm, and the cement plate height Ah is 2680 mm.

  Then, as shown in FIG. 6A, the heat insulating layer 1B is divided into a right area RB, a central area CB, and a left area LB each having a width of 900 mm, and the depth Gd of the layer attachment surface 1S is 300 mm. In the right region RB and the left region LB, the groove G having a width a1 of 50 mm and a width of 15 mm is alternately arranged with the thick portion 1C having a width of 50 mm and the outermost end is the thick portion 1C. In this case, the grooves G are arranged at intervals of 200/3 mm (≈67 mm), and the heat insulating layer 1B protrudes from the cement board 1A-1 by d1 (10 mm) on one side and d1 (10 mm) on the other side. The upper end protrudes with a large step d3 (40 mm), and the lower end has a small step d2 (20 mm) with an adhesive layer applied to the thick part 1C of the heat insulating layer 1B. It is.

As shown in FIG. 6 (C), the cement board 1A is formed in a mold by dispersing cinnabar sand, slaked lime, and pulp in water, forming a layer in the manner of godling, and compounding with calcium by autoclave curing. It is also possible to use a calcium silicate plate 1A-2, which is press-molded by adding Verculite Va to a base material of calcium silicate Ca generated in this manner.
The calcium silicate plate 1A-2 having a thickness of 12 mm has a specific gravity of 0.8 to 1.1, a bending strength of 100 to 120 kgf / cm ² , and a moisture permeability resistance of 7.16 m ² hmm Hg / g.
Further, as shown in FIG. 6 (D), as the cement board 1A, a phenolic resin board 1A-3, which is spread with a plastic film or the like, sprayed with a mixture of fly ash volcanic gravel Ka, glass fiber, and phenol resin, and subjected to hot press processing. Can also be used.
The 13 mm thick phenolic resin plate 1A-3 has a specific gravity of 0.9 to 1.1, a bending strength of 100 to 120 kgf / cm ² , and a moisture permeability resistance of 3.33 m ² hmm Hg / g.

For the composite panel 1, as shown in FIG. 6 (A), the separator insertion holes hs are thick portions 1C of the heat insulating layer 1B at positions 225 mm from both sides in the width direction of the heat insulating layer 1B. In the center, as shown in FIG. 5 (B), when five composite panels 1 are perforated as a mold frame in the vertical direction, the separator insertion holes hs are equally spaced in the horizontal direction (450 mm intervals). Arrange so that
In addition, the bolt insertion holes hb for the fall prevention anchor 4B for securing the composite panel 1 to the concrete wall W are also located at 125 mm and the center position from both sides in the width direction of the heat insulating layer 1B. In addition, as shown in FIG. 5 (B), the heat insulation layers 1B are staggered so that the bolt insertion holes hb on both sides and the central bolt insertion holes hb are uniformly distributed on the composite panel 1 surface. A perforation is arranged through the central position of the thick part 1C.

Further, as shown in FIG. 2, when the window 10 is arranged on the outer wall, a panel having a deformed size having a different height and width from the standard size panel is required according to the panel layout diagram in the building design. 4 (C), the panel 1 positioned on the upper side of the window 10 has a transverse groove G ′ at the lower end of the heat insulating layer 1B, and the panel 1 positioned on the lower side of the window 10 has the heat insulating layer 1B. A transverse groove G ′ may be formed on the upper end simultaneously with the formation of the groove G on the heat insulating layer 1B with a cutter, and layered with the exterior base material 1A-1 having a desired size.
That is, in the deformed composite panel 1, the adhesive thick portions 1C are located on both sides of the heat insulating layer 1B in the width direction, and the separator insertion holes hs and the bolt insertion holes hb are formed in the heat insulating layer thick portions 1C. It only needs to be placed.

[Basic composite panel (Fig. 2, Fig. 8)]
As shown in FIG. 2, the foundation composite panel 1 ′ covers the concrete foundation rising portion 5 below the waist parting line 7, that is, below the first floor composite panel 1, and the heat insulation layer 1 </ b> B of the composite panel 1. The foam plastic heat insulating board of the same quality is layered with the cement board 1A without providing a groove, and the height of the panel 1 'is determined according to the foundation rising part 5 of the building.
And as shown in FIG. 8 (A), the upper end portion of the base composite panel 1 ′ projects the heat insulating layer 1B ′ by 65 mm (d4) from the cement board 1A, and the height 20 mm of the projecting height d4 (65 mm). (D2) Leave the upper 45 mm to the same depth as the groove depth Gd (15 mm) of the heat insulation layer 1B of the upper composite panel 1, and form a notch 7G over the entire width.
Further, the left and right side edges of the base panel 1 ′ are layered by shifting the exterior base material 1 A and the heat insulating layer 1 B ′ having the same width from each other by 10 mm to the left and right so that the same phase claw joining as the composite panel 1 is possible.

[Waist closing bracket (Fig. 7)]
As shown in FIG. 2, the waist parting 7 is arranged as a parting on the lower end of the outer wall, and includes a mounting plate piece 9 shown in FIG. 7 (A) and a waist parting bracket 7A shown in FIG. 7 (B). Assemble.
As shown in FIG. 7A, the mounting plate piece 9 has a cross-sectional shape including a horizontal upper piece 9U and a horizontal lower piece 9D having a width W9 of 10 mm at the upper and lower ends of a back plate 9F having a height 9h of 40 mm. An angle-shaped groove protrusion piece 9E protrudes from the back plate 9F to the lower portion of the horizontal upper piece 9U and the upper portion of the horizontal lower piece 9D, and the groove protrusion pieces 9E respectively engage the engagement grooves 9G. Is an aluminum extrusion molded product having a general wall thickness of 2 mm, which is formed in an inward channel shape, and is cut to a length L9 of 60 mm.
Then, in the horizontal upper piece 9U and the horizontal lower piece 9D, the mounting holes H9 for screw fastening to the cement plate 1A are arranged at positions corresponding to the upper and lower sides and do not interfere with the groove protruding pieces 9E.

  As shown in FIG. 7 (B), the waist parting bracket 7A is provided with a horizontal piece 7T having a width of 7.5 mm at the upper and lower ends of a falling plate 7F having a height 7h of 45 mm. Has a downward L-shaped piece 7B for receiving the ceiling, and an upward L-shaped piece 7B for receiving the ceiling is disposed on the lower horizontal piece 7T. The bottom plate 7D on the side protrudes with a width W7 of 25 mm, the protruding piece 7E having a height of 2 mm from the rear end of the inclined plate 7U, and the protruding piece having a height of 2 mm from the rear end of the bottom plate 7D. 7E, and an aluminum extrusion molded product with a general wall thickness of 1.5 mm, formed into a shape in which the dimension Eh between the upper and lower projection pieces 7E is slightly larger than the gap Gh between the upper and lower engagement grooves 9G of the mounting plate piece 9 It is.

[Waist drainer (Fig. 7 (C))]
The waist drainage metal fitting 8A is a metal fitting used when the moisture-permeable outer wall structure of the present invention is modified to a breathable outer wall structure, and is used by replacing the waist parting when the breathable outer wall structure is modified.
That is, as shown in FIG. 7C, the waist water draining bracket 8A has a falling plate 8F having a height of 8 mm and a falling plate 8U having a gradient height of 5 mm from the upper end of the falling plate 8F. The bottom plate 8D protrudes with a width W8 of 36 mm, leaving a 5 mm water slice 8C from the lower end of 8F, and upward from the rear end of the inclined top plate 8U and downward from the rear end of the bottom plate 8D. This is an aluminum extrusion molded product having a wall thickness of 1.5 mm provided with a 2 mm projection piece 8E.
The dimension Eh between the upper and lower projection pieces 8E is formed to be the same as the dimension Eh between the projection pieces 7E in the waist parting bracket 7A.

[Construction of outer wall (Figs. 1-3)]
As shown in FIG. 2, in a portion where a window is present on the outer wall, a composite panel 1 having a deformed size for the upper and lower parts of the window 10 is prepared according to the panel layout diagram. The panel 1 is used as the outer frame of the concrete outer wall W, and the drop prevention anchors 4B are arranged in the bolt insertion holes hb. The top and bottom and left and right connections of each composite panel 1 are phase-separated by the abutting connection of the heat insulating layer 1B. Then, the concrete formwork of the concrete frame is constructed by the conventional formwork means through the separator insertion hole hs, and the composite panel 1 is integrally stretched with the concrete outer wall W by placing concrete.

In the foundation rising part 5, as shown in FIG. 8, a basic composite panel 1 ′ having a short height direction, in which a cement board 1A and a heat insulating layer 1B without a groove G are layered, is used as a concrete outer formwork. As shown in FIG. 8 (A), the basic composite panel 1 ′ has a heat-insulating layer 1B ′ protruding from the upper edge eu of the cement plate by a large step d4 (65 mm), and a small step d2 (20 mm) on the front surface. ) The remaining notch 11G having the same depth Gd as the depth Gd (15 mm) of the groove G of the upper composite panel is horizontally provided over the entire width.
If concrete is placed in a concrete formwork and the formwork is dismantled after the concrete is solidified, the outer wall is a composite as shown in the longitudinal sectional view of FIG. 3 (A) and the transverse sectional view of FIG. 3 (B). The panel 1 is integrally fixed to the concrete wall W by a group of bolts 4 </ b> A secured by the fall prevention anchor 4 </ b> B embedded in the concrete wall W.

The composite panel 1 includes a small step d1 (10 mm) between the left and right heat insulating layers 1B and the cement board 1A, a large step d3 (40 mm) above the upper and lower heat insulating layers 1B and the cement board 1A, and As shown in FIG. 3B, the parallel transverse joint dy becomes a close-phase lack joint with no gap as shown in FIG. 3B due to the phase chip connection at a small step d2 (20 mm) below, and the upper and lower joints are formed as shown in FIG. ), The horizontal joint dx with a width of 20 mm (d3-d2) is generated between the upper and lower cement boards 1A by the abutting connection between the upper and lower heat insulating layers 1B. Not only is it easy, but the abutting contact that maintains the distance between the horizontal joints dx of the cement plates 1A between the upper and lower panels can suppress the collision loss of the cement plates 1A.
In addition, since the abutting contact interface of the heat insulating layer 1B is closed by the cement board 1A, the outflow of the concrete liquid from the cast concrete to the exterior base material (cement board) surface can be prevented, and the removal work is difficult. It is possible to prevent the surface of the exterior base material 1A from being contaminated by a concrete liquid.

[Finishing of outer wall (Fig. 1, Fig. 2)]
On the surface of the composite panel 1 integrated with the concrete outer wall W, as shown in FIG. 2, a conventional glass net 3A is attached to the longitudinal joint dy of the composite panel 1, and a resin mortar 3B is applied to the surface. The exterior finishing material 2 for the painted wall is applied.
In this case, as the coating wall, a finishing material having a small moisture permeability resistance should be selected from the moisture permeability resistance of the cement board 1A of the composite panel 1, and the magnesium cement board 1A-1 (moisture permeability resistance: 14m ² hmm Hg / g), Fukuko's trade name FMX (moisture resistance: 7.5 m ² hmm Hg / g), trade name Magic Coat (moisture resistance: 13.0 m) A coating wall having a thickness of 3 mm such as ² hmm Hg / g) can be applied, and the coating wall is advantageous because it has excellent durability and weather resistance.

Further, as shown in FIG. 1 (C), in the connection portion between the composite composite panel 1 ′ and the composite composite panel 1 stretched on the outer surface of the basic rising part 5, the heat insulating layer 1B ′ of the composite composite panel 1 ′ A conventional backup material 12B having a rectangular cross section is placed on the bottom surface ds (FIG. 8) of the notch 7G, the front surface of the backup material 12B is filled with the sealing 12, and each groove G is airtight at the lower end of the composite panel 1. Close.
Further, as shown in FIG. 1B, in the upper and lower joints of the composite panel 1, the space between the upper edge eu of the cement board of the lower panel 1 and the lower edge ed of the cement board of the upper panel 1, that is, the heat insulating layer. A conventional backup material 12B is extended and arranged at an exposure interval of 1B, and the sealing material 12 is filled in the front surface of the backup material 12B to finish the upper and lower composite panel joints in an airtight manner.
Further, as shown in FIG. 1 (A), at the uppermost part of the outer wall, the exterior base material piece 1A ′ is bonded to the upper end of the heat insulating layer 1B, and the waterproof layer is applied to the upper surface of the plate material 60 and the parapet concrete via the coated heat insulating layer. 11A is placed, and a conventional angle headboard is attached with screws Sc.

  The resulting outer wall structure is integrally bonded to the concrete outer wall W when the breathable heat insulating composite panel 1 is placed in the concrete, and the composite panel 1 is attached to the heat insulating layer 1B from the lowermost end to the uppermost end of the outer wall for ventilation. The air in each groove G exhibits a heat insulating function as a sealed air layer by airtight closing of the groove G group at the lowermost end, regardless of whether the groove G group is held in communication form. Therefore, the heat insulation layer 1B of the composite panel 1 exhibits a heat insulation function without any heat insulation defects regardless of the presence of defects in the groove G group, and has a moisture resistance more than the composite panel cement board 1A as the coating wall 2. Because it uses a small finishing material, the outer wall structure is a heat insulating layer 1B that provides 100% heat insulation function, and moisture is diffused from the indoor side to the outside to prevent internal condensation. I will provide a.

[Others]
As an airtight closing means for the groove G at the lowermost end of the composite panel 1 on the outer wall, a waist parting 7 is adopted as shown in FIGS. 9A and 9B instead of FIG. You may do it.
In this case, as shown in FIG. 8 (B), the packing 14P is selectively applied as necessary on the cement plate upper end eu of the basic composite panel 1 ′, and the double-sided adhesive tape 14A is attached to the front surface fd of the small step d2. The back plate 9F of the mounting plate piece 9 is attached to the double-sided adhesive tape 14A, and as shown in FIG. 8C, the horizontal upper piece 9U of the mounting plate piece 9 is set to the lower end ed of the upper cement plate and the horizontal lower piece. 9D is fixed to the upper end eu of the lower cement plate with screws Sc through the mounting holes H9, and the waist parting bracket 7A is fitted to the mounting plate piece 9 as shown in FIG. 8 (D). As shown in FIGS. 9A and 9B, the abutting portion between the waist parting bracket 7A and the upper and lower cement plates is filled with the sealing 12 via the backup material 12B, and airtight. You can close it.

  Further, in the window frame portion, as shown in FIG. 4B, the lower surface exterior base material piece 1A ′ and the lower surface finishing material 2 adhered to the lower end surface of the composite panel 1 on the upper side of the window upper frame 10A are penetrated. If the air hole H10 to be communicated with the groove G is disposed in a proper place, and the air hole H10 is closed and used as a moisture permeable outer wall, the air hole H10 can be used when the outer wall structure is modified from moisture permeable to breathable. If the airtight stopper of the hole H10 is also opened, the inflow air flow a to the transverse groove G ′ of the composite panel 1 on the upper side of the window 10 can be added, and the ventilation function of the composite panel on the upper side of the window 10 is improved.

[Renovation to breathable outer wall structure]
While the present invention is used as a moisture-permeable outer wall building, when it is necessary to repair the painted wall, or if the building is desired to be upgraded to a high-quality tiled outer wall, the outer wall of the embodiment of FIG. In the concrete foundation rising portion shown in FIG. 1 (C), the sealing 12 and the backup material 12B are peeled off, and the mounting plate piece 9 of FIG. 7 (A) is combined as shown in FIG. 8 (C). The bottom plate ed of the cement plate 1A of the panel 1 and the upper end side eu of the cement plate 1A of the basic composite panel 1 ′ are fastened with screws Sc, and then the air holes H8 shown in FIG. As shown in FIG. 8 (D), the waist water draining metal fitting 8A provided on the upper plate 8U and the protruding piece 8E of the inclined top plate 8U and the protruding piece 8E of the bottom plate 8D are inserted into the upper and lower engaging grooves 9G of the mounting plate piece 9 as shown in FIG. As shown in FIGS. 9 (C) and 9 (D), the bottom plate 8D and the foundation of the waist drainer 8 are fitted. Between cement board 1A merging panels 1 ', and between the inclined top plate 8U and the composite panel 1 cement plate 1A, to vacuum-tight manner closed by sealing 12.

In the headboard portion shown in FIG. 1 (A), the angle headboard bracket 6A is peeled off and the headboard of Japanese Patent No. 3664697 owned by the present applicant is attached, and the groove G group at the upper end of the composite panel 1 is attached. The ascending air flow a can be discharged through the caps.
Then, if the finishing material 2 on the surface of the composite panel 1 is peeled off and a desired exterior material such as porcelain tile or ceramic tile is stretched on the cement plate 1A surface of the composite panel 1 via an adhesive, the outer wall Although the composite panel 1 itself loses moisture permeability, the draft rising air flow a due to the groove G group circulates from the lowermost drainage 8 to the uppermost headboard, so that internal condensation can be suppressed, and It becomes an external insulation building where overheating is suppressed by solar radiation of the exterior material.

Further, as a modification of the present invention, if the waist parting metal fitting 7A is arranged at the stage of the moisture permeable outer wall structure as shown in FIGS. Since the mounting plate piece 9 can be used as it is, the metal fitting 8A can be easily exchanged and attached using the jig 14B between the waist parting metal piece 7A and the waist water draining part 8A.
Therefore, the present invention employs a unique composite panel that can be used for both the outer wall of the moisture-permeable structure and the outer wall of the ventilation structure. It can be rationally repaired by replacing it with a ventilation structure with exterior finishing materials, waist drainage and headboards, and a ventilation structure with a solid and high-quality tile exterior, with a durable moisture-permeable structure. It is possible to meet the demands of consumers' funds and preferences.

It is a longitudinal cross-sectional view of this invention outer wall structure, Comprising: (A) is a headboard part, (B) is a panel up-down connection part, (C) is a figure which shows a basic | foundation rising part. It is a schematic front view of this invention outer wall. It is explanatory drawing of this invention outer wall structure, (A) is the YY line longitudinal cross-sectional view of FIG. 2, (B) is the XX line cross-sectional view of FIG. It is explanatory drawing of the window part of this invention, Comprising: (A) is a partially notched longitudinal cross-sectional view of a window, (B) is a longitudinal cross-sectional view of a window lower frame, (C) is ventilation explanatory drawing around a window. . It is panel explanatory drawing of this invention, Comprising: (A) is a partially notched perspective view, (B) is a front view. BRIEF DESCRIPTION OF THE DRAWINGS It is panel explanatory drawing of this invention, (A) is a cross-sectional view, (B), (C), (D) is each the B section enlarged view of (A), Comprising: A different cement board is applied. FIG. It is metal fitting explanatory drawing used for this invention, (A) is a mounting plate fragment perspective view, (B) is a waist parting metal perspective view, (C) is a waist watering part perspective view exchanged with a waist parting part at the time of repair. . It is a junction longitudinal section of a basic composite panel and a composite panel, (A) is a structural explanatory diagram, (B) is a preparation state diagram of the mounting plate piece arrangement, (C) is a fixed state diagram of the mounting plate piece (D) is explanatory drawing of a fitting effect | action of the metal fitting to a mounting plate piece. It is arrangement | positioning explanatory drawing of the metal fitting to the junction part of a base composite panel and a composite panel, Comprising: (A) is a waist parting arrangement | positioning perspective view, (B) is a waist parting arrangement | positioning longitudinal cross-sectional view, (C) is at the time of repair. The waist water drainage metal fitting arrangement perspective view, (D) is the waist water drainage metal board arrangement longitudinal section. It is a description perspective view of the prior art example 1. It is explanatory longitudinal cross-sectional view of the prior art example 2, Comprising: (A) is a coping part, (B) is a panel up-and-down junction part, (C) is a drainage part, (D) is a window upper frame part, ( E) is a figure which shows a window lower frame part. It is explanatory drawing of the prior art example 3, Comprising: (A) is a composite panel cross-sectional view, (B) is a modified example figure.

Explanation of symbols

1 Composite panel (panel)
1 'basic composite panel 1A exterior base material (cement board)
1A 'exterior base material piece 1A-1 magnesium cement board (exterior base material, cement board)
1A-2 Calcium silicate board (exterior base material, cement board)
1A-3 Phenolic resin board (exterior base material, cement board)
1B, 1B 'Heat insulation layer 1C Thick part 1S Layer surface 2 Exterior finishing material (finishing material, painted wall)
3A Glass net 3B Resin mortar 4A Bolt 4B Fall prevention anchor 5 Foundation rising part 6 Kasagi (Kasagi part)
7 Waist closing 7A Waist closing bracket 7B L-shaped piece 7D, 8D Bottom plate 7G Notch 7E, 8E Projection piece 7F, 8F Falling plate 7T Horizontal piece 7U Inclined plate 8 Waist drainer 8A Waist drainer 8C Water section 8U Inclined top plate 9 Plate piece 9D Horizontal lower piece 9E Groove protrusion 9F Back plate 9G Engaging groove 9U Horizontal upper piece

10 Window 10A Upper frame 10B Lower frame 10B 'Drainer 10C Hard frame 10D Frame 11A Waterproof layer 11B Application heat insulation layer 11C Heat insulation layer 12 Sealing 12B Backup material (backer)
13A Mortar 13B Urethane foam 14A Double-sided adhesive tape 14B Jig 14P Packing 60 Plate material a Draft rising air flow (air flow, rising air flow)
A Residential part CB Central area ds Bottom face dx Horizontal joint dy Joint part (parallel joint part)
ed Lower edge eu Upper edge fd Front G groove (ventilation groove, vertical groove)
G 'transverse groove (horizontal groove)
Gd Groove depth H8, H10 Air hole H9 Mounting hole hb Bolt insertion hole hs Separator insertion hole LB Left side area P Parapet RB Right side area S Floor slab Sc Screw Sf Floor slab surface W Concrete outer wall (concrete wall, outer wall)

Claims (13)

  The outer wall (W) of a reinforced concrete building has a moisture-permeable outer wall structure in which a dry-contact type breathable heat insulating composite panel (1) is stretched, and the composite panel (1) is a plate-like heat insulating layer made of foamed plastic heat insulating material. (1B) layered surface (1S), ventilation groove (G) group and layer-wearing thick part (1C) group alternately in the vertical direction, and both sides are thick parts (1C) is a composite thin rigid plate exterior base material (1A) having a moisture permeability resistance smaller than that of the heat insulating layer (1B), and is layered on the layer attachment surface (1S). The panel (1) is stretched on the concrete outer wall (W) in the form of a thermal insulation layer (1B) of each composite panel (1) between the upper and lower sides and the left and right abutting connection form. In the form of communication from the lower end of the composite panel (1) to the upper end of the uppermost composite panel (1), the heat insulating layer (1B) is applied to the concrete outer wall (W). At the lower end of the lowermost composite panel (1), each groove (G) is airtightly closed, and the exterior base material (1A) of the composite panel (1) is used as the exterior base material (1A). A moisture permeable outer wall structure in which an exterior finishing material (2) having a smaller moisture permeability resistance is disposed.   In the composite panel (1), the heat insulation layer width (BW) and the exterior base material width (AW) are equal, and the heat insulation layer height (Bh) is larger than the exterior base material height (Ah). In the direction, the heat insulating layer (1B) protrudes on one side by a small step (d1) and enters the other side on a small step (d1), and in the height direction, the heat insulating layer (1B) has a large step (d3 ) It protrudes and enters a small step (d2) at the lower end, and each composite panel (1) has top and bottom and left and right connections that are phase-separated, and at the upper and lower connection parts, between the upper and lower exterior base materials (1A) The outer wall structure according to claim 1, wherein a lateral joint (dx) is formed.   In the composite panel (1) on the upper side of the upper frame (10A) of the window (10), a transverse groove (G ′) that communicates the groove (G) group is disposed at the lower end of the heat insulating layer (1B), In the lower composite panel (1) of the lower frame (10B), a transverse groove (G ′) that communicates the groove (G) group is arranged at the upper end of the heat insulating layer (1B), and the lower side of the window lower frame The ascending air flow (a) of the groove (G) group can be bypassed through the window rigid frame (10C) from the composite panel (1) to the composite panel (1) above the upper window frame. Or two outer wall structures.   The foundation composite panel (1 ′) stretched on the concrete foundation rising part (5) is a layered panel of a heat insulating layer (1B ′) without a groove (G) and an exterior base material (1A), At the upper end, the heat insulating layer (1B ′) protrudes from the large step (d4), and the front surface of the large step (d4) protruding portion leaves the front surface (fd) of the small step (d2), and the strip of the upper composite panel (1). A notch (7G) having the same depth as the groove depth (Gd) is provided across the entire width in the lateral direction, and the upper end side (eu) of the exterior base material of the basic composite panel (1 ') and the composite panel (1) The outer wall structure according to claim 1, 2, or 3, wherein the space between the lower end side (ed) of the exterior base material is airtightly closed.   Backup material (12B) is installed horizontally in the notch (7G), and the lower surface (ed) of the exterior base material of the upper composite panel (1) on the front surface of the backup material (12B) and the exterior base of the basic composite panel (1 ') The outer wall structure according to claim 4, wherein the upper end side (eu) of the material is hermetically closed with a sealing (12).   Between the upper end side (eu) of the exterior base material (1A) of the basic composite panel (1 ') and the lower end side (ed) of the exterior base material (1A) of the upper composite panel (1), The outer wall structure according to claim 4, wherein 9) is fastened in a passing manner, and a waist parting fitting (7A) is fitted to the front surface of the mounting plate piece (9).   The mounting plate piece (9) is a U-shaped cross-sectional metal fitting provided with a back plate (9F), a horizontal upper piece (9U), and a horizontal lower piece (9D), and the horizontal upper piece (9U) and horizontal The lower piece (9D) is provided with a mounting hole (H9), and the groove protruding piece (9E) is formed from the back plate (9F) to the lower part of the horizontal upper piece (9U) and the upper part of the horizontal lower piece (9D). Each groove protrusion (9E) protrudes between the back plate (9F), the lower groove protrusion (9E) has an upward engagement groove (9G), and the upper groove protrusion (9E) has a downward engagement. The outer wall structure according to claim 6, wherein a joint groove (9 G) is formed.   The waist parting bracket (7A) has a cross-sectional shape, a front falling plate (7F), a horizontal piece (7T) from the upper end of the falling plate (7F) to the rear, and a downward L-shaped piece for receiving a subsequent sealing. (7B) is provided with a horizontal piece (7T) from the lower end of the falling plate (7F) to the rear and an upward L-shaped piece (7B) for receiving the ceiling, and from above the falling plate (7F) The inclined plate (7U) and the lower bottom plate (7D) protrude, an upward fitting projection piece (7E) is provided at the rear end of the inclined plate (7U), and the downward projection is provided at the rear end of the bottom plate (7D). The outer wall structure of Claim 6 provided with the fitting protrusion piece (7E).   A composite panel used in the invention of claim 1, wherein a sheet-shaped heat-insulating layer (1B) of a foamed plastic-based heat insulating material is layered with a molded thin rigid plate exterior base material (1A), and a heat-insulating layer ( 1B), the layer groove (G) group and the layered thick part (1C) are alternately arranged in the vertical direction on the layer attachment surface (1S), and both side parts are thick parts (1C). ), And the thick part (1C) occupies an area of 50 to 60% of the layer attachment surface (1S) of the heat insulating layer (1B).   The width (BW) of the heat insulation layer (1B) and the width (AW) of the exterior base material (1A) are equal, and the height (Bh) of the heat insulation layer (1B) is the same as that of the exterior base material (1A). It is larger than the height (Ah), and in the width direction, the heat insulating layer (1B) protrudes by a small step (d1) on one side and enters a small step (d1) on the other side, and in the height direction, The composite panel according to claim 9, wherein the heat insulating layer (1B) protrudes from the upper end with a large step (d3) and enters the small step (d2) at the lower end. The exterior base material (1A) has a thickness (T2) of 12 to 13 mm, a specific gravity of 0.8 to 1.1, a moisture permeability resistance of 3 to 14 m ² hmm Hg / g, and a bending strength of 100 to 120 kgf. a / cm ^2, the composite panel according to claim 9 or 10.   The heat insulating layer (1B) has a thickness (T3) of 75 mm, a depth (Gd) of the groove (G) of 12 to 20 mm, and a width (a1) of the groove (G) of 50 mm. Item 9. The composite panel according to item 9, 10, or 11.   A waist parting bracket used in the invention of claim 1, comprising a waist parting bracket (7 A) and a mounting plate piece (9). The waist parting bracket (7 A) has a cross-sectional shape of a front falling plate ( 7F) and a downward L-shaped piece (7B) for receiving the ceiling downwardly from the upper end of the falling plate (7F) from the lower end of the falling plate (7F). Is provided with an upward L-shaped piece (7B) for receiving a ceiling projecting upward through a horizontal piece (7T) to the rear, and an upward protruding piece (7E) is provided at the tip from the back of the falling plate (7F). An upper inclined plate (7U) provided and a lower bottom plate (7D) provided with a downward projecting piece (7E) at the tip thereof are metal plate molded products, and the mounting plate piece (9) has a cross-sectional shape. Is a back plate (9F) and a horizontal upper piece (9U) provided with a mounting hole (H9) projecting outward from the upper end of the back plate (9F) A horizontal lower piece (9D) having a mounting hole (H9) projecting outward from the lower end of the back plate (9F), and a downward L-shaped groove protrusion (9E) at the lower part of the horizontal upper piece (9U) ) At the upper part of the horizontal lower piece (9D), the upward L-shaped groove protruding pieces (9E) are respectively directed outward from the back plate (9F) and into the mounting holes (H9) of the upper and lower horizontal pieces. Projected with dimensions that do not interfere with each other, the dimension (Gh) between the upper and lower grooves (9G) allows the inclined plate (7U) and the bottom plate (7D) of the waist parting bracket (7A) to be elastically expanded. Waist close-up fittings that are elastically fitted and held.

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