JP2008303547A - Construction method for externally mounting composite panel on exterior concrete wall of reinforced concrete building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mount a heat-insulating composite panel in a tensioned state in a uniformly flush manner without use of an adhesive and without reference to unevenness in an exterior concrete wall, in a construction method for externally mounting the adhesion layer-type heat-insulating composite panel around the exterior concrete wall of the reinforced concrete building. <P>SOLUTION: In this construction method for externally mounting the composite panel on the exterior concrete wall, the composite panel 1 at the lowermost end is supported by an angle-shaped panel retainer fitting 7A which is fixed to a concrete frame CF; when the respective composite panels 1 are provided in a tensioned state on the exterior concrete wall W, a post-driven anchor 4C, the rear outer periphery of which is equipped with a threaded surface 4S, is driven into the exterior concrete wall W; a steel pad 4B, from which a protrusion 4K equipped with a threaded hole H4' is protruded, is screwed into the rear threaded surface 4S of the post-driven anchor 4C, so that a flat board 4F of each steel pad 4B can be positioned in a flush manner while being measured; inner surfaces of the composite panels 1 abut on the flat boards 4F of the steel pads 4B so as to be arranged in the state of being flush with one another, respectively; and the composite panels 1 are fixed to the steel pads 4B by internally screwing a continuous screw 4A from a surface, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for externally constructing a dry adhesion layer type heat insulating composite panel on the concrete outer wall of a reinforced concrete building, and more specifically, without using an adhesive on the concrete outer wall. Moreover, regardless of whether the concrete outer wall is uneven or not, the outer wall is constructed in the same plane 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 in the concrete due to thermal stress due to solar radiation can be suppressed, and the concrete frame is not exposed to the outside air. Can be suppressed, corrosion of the steel bars can be suppressed, the durability of the building is improved, and the outer surface of the entire building is covered with a heat insulating layer. It is superior in heat insulation construction and heat insulation efficiency than thermal insulation coating, and is evaluated as an energy-saving building.

FIG. 8 shows a composite panel external construction method cited as Conventional Example 1 and is shown in Non-Patent Document 1.
That is, as shown in FIG. 8 (A), the external construction method of Conventional Example 1 is a magnesium cement plate which is made of magnesium oxide and cinnabar sand as main components and is embedded in glass fiber nonwoven fabric on both sides and molded to a thickness of 12 mm. Adhesive-type composite panel (EB Co., Ltd., EB Thin Panel (trade name)) in which the exterior base material and the heat insulating material are integrated in layers, and the heat insulating composite panel is put into concrete through a dumpling adhesive. It is bonded to the outer wall surface, and a dry anchor is driven into the concrete outer wall from the surface of the heat insulating composite panel, and the composite panel is externally attached to the concrete outer wall.

That is, the composite panel is stretched by cleaning the surface of the concrete frame to improve the adhesiveness of the adhesive. As shown in FIGS. 8C and 8D, the horizontal direction of the panel and the vertical direction are both side edges, And from the upper and lower ends, the adhesive is 5 to 10 mm thick and the length is 80 to 100 mm on the side so that the interval is 200 to 250 mm, and is attached to the surface of the concrete frame. The heat insulating layer is bonded to the concrete frame via an adhesive.
As shown in FIG. 8 (B), the dry anchor is attached to the left and right sides of the panel at 100 mm from both sides and within 700 mm. The vertical direction of the panel is 150 mm from the upper and lower ends and within 600 mm. It is arranged so that the interval is within 920 mm, and a dry anchor having a nylon plug attached to the tip is driven into the concrete frame through an anchor insertion hole previously drilled in the exterior base material of the composite panel. .

FIG. 9 shows a second conventional example, which is also cited as a conventional example in Japanese Patent No. 3753719 (Japanese Patent Laid-Open No. 2005-68791) owned by the present applicant. This is panel panel construction technology.
That is, as shown in FIG. 9, the conventional example 2 is an adhesion layer type heat insulating material in which a GFPC-type exterior material (volcanic gravel sand ash phenol resin plate mixed with double-sided glass fibers having a thickness of 13 mm) and a heat insulating material are bonded and integrated. A composite panel (Okuma YB-R (trade name) manufactured by Iwakura Chemical Industry Co., Ltd.) is used.

The exterior material is provided with holes for post-construction anchors at appropriate locations, and on the surface of the heat insulation layer, dumpling adhesive is arranged at appropriate intervals, and the insulation layer of the panel is made of concrete with the dumpling adhesive. Adhering to the surface of the frame, and then driving the construction anchor from the exterior material surface to the concrete frame, the composite panel is stretched on the surface of the concrete frame.
The gap between the lower end of the lowermost panel and the drainage is sealed with sealing, and the upper end of the uppermost panel is covered with a waterproof layer together with the upper end of the parapet, and the angle headboard is attached.
Fukuko's model “Eco-Body System (May 2005)”, construction manual, 2-3), dry anchor installation quantity, position, 3-2), adhesive application work Iwakura Chemical Industry Co., Ltd. brochure “Omar YB-R” post-installation procedure manual

In the external construction method of Conventional Example 1 (FIG. 8), the heat insulating layer of the composite panel and the surface of the concrete frame are fixed with an adhesive, so that the adhesion of the surface of the concrete frame is enhanced when the panels are attached. In addition, it is essential to clean the surface of the concrete body, and the cleaning operation is a complicated operation requiring attention.
Moreover, the adhesive performance changes depending on the weather at the time of construction because the adhesive performance changes in rainy weather, extreme heat and severe winter.

  In addition, in order to stick the panel surface flush regardless of the unevenness of the surface of the concrete body, it is necessary to cope with the degree of pressing flattening of the dumpling adhesive, and the dumpling adhesive having a thickness of 5 to 10 mm There is a limit to the absorption of unevenness on the surface of the concrete frame due to pressing deformation at the center, and the work of unifying the pressing surface to the surface of the concrete frame from the surface side to the composite panel requires labor and manpower. In addition, it is difficult to make the composite panel flush with each other because the operation involves variation.

In addition, the arrangement of a predetermined amount at predetermined intervals on the surface of the concrete frame is also a complicated operation so that the dumpling adhesive is at a predetermined position of the panel.
When the composite panel is externally constructed on the existing concrete frame by the method of the conventional example 1, the surface of the concrete outer wall is usually uneven, so the surface of the concrete outer wall is leveled by the rolling operation. Work is also required, and the preparation work for flushing the composite panel is a complicated and difficult work.

Further, even in the case of the prior art 2 (FIG. 9), the composite panel is stuck on the surface of the concrete frame by aligning the adhesive dumper with the position where the composite panel needs to be bonded. Because the thermal insulation layer of the composite panel is bonded to the concrete frame surface, it will respond to the unevenness of the concrete frame surface due to the pressure deformation of the dumpling adhesive, and the concrete frame surface can be turned as necessary. In addition, the cleaning operation of the surface of the concrete body, the arrangement operation of the dumpling adhesive, and the like are complicated and troublesome operations, and it is difficult to externally lay the composite panel.
The present invention solves the problems of the conventional examples 1 and 2, and without using a dumpling adhesive, the composite panel can be externally flushed regardless of the unevenness of the concrete frame surface. It provides an innovative method.

  As shown in FIG. 1, the first invention of the composite panel external construction method is a method of externally constructing a dry adhesion layer type thermal insulation composite panel on the concrete outer wall of a reinforced concrete building, wherein At the lower end position of the panel 1, the angle-shaped panel receiving brackets 7A and 11A are fixed to the concrete frame CF with the post-cast bolt anchors 7B. At the predetermined position of the concrete outer wall W, for example, as shown in FIG. The trailing anchor 4C, which is the threaded surface 4S, is placed and fixed in a form in which the trailing end threaded surface 4S protrudes. Then, on the trailing end threaded surface 4S of each trailing anchor 4C, a screw hole is formed from the flat plate 4F. A steel pad 4B projecting from the front surface of the protrusion 4K provided with H4 'is screwed and fitted, and the rear end surface of the flat plate of each steel pad 4B is measured and each pad 4B is arranged flush, Bottom composite The lower end of the panel 1 is supported by the panel brackets 7A and 11A, and each composite panel 1 is brought into contact with the flat plate 4F of each steel pad 4B with the surface of the heat insulating layer 1B. 4B is fixed with a group of long screws 4A, and the composite panel 1 is stretched on the concrete outer wall W in a flush manner.

  In this case, the heat insulating composite panel 1 may be a dry adhesion layer type panel that can cover the concrete outer wall W with heat insulation, and the exterior material (exterior base material) and the heat insulation layer used in the conventional examples 1 and 2 are integrated. Even if it is a layered panel, the ventilation of the utility model registration No. 3084180 owned by the applicant of the present application, in which the extruded cement board and the heat insulating layer are vertically formed with a group of grooves for ventilation on the inner surface. Typically, a heat insulating composite panel may be used, but typically, as shown in FIG. 4, a groove group for ventilation is provided vertically on the surface of the heat insulating layer 1B to form an EB thin panel (trade name) or the like. It is a breathable heat insulating composite panel in which thin rigid plates are layered and integrated.

Further, the steel pad 4B provides a vertical surface in which the rear end surface can resist the pressing force of the composite panel 1 and can be measured in a state where the steel pad 4B is screwed onto the post-cast anchor 4C. Typically, from a flat plate 4F (disk, standard: outer diameter 80 mm, thickness 2.3 mm) shown in FIG. 3B, a protrusion 4K (standard: outer diameter 25 mm, protrusion) having a screw hole H4 ′. The rear end anchor 4C is screwed into the screw hole H4 ′ and accommodated in the protrusion 4K.
Further, the panel brackets 7A and 11A are long objects that serve as a starter at the lowermost end of the composite panel 1 that is connected to be arranged up and down, and firmly support the lowermost panel, as shown in FIG. Although the angle steel shown may be a single steel plate or a horizontal plate 11U mounted on the angle steel shown in FIG. 6 (A), it is typically a JIS G 3192 unequal side angle steel with a thickness of 4 mm.

In addition, as shown in FIG. 3 (A), the long screw 4A typically has a head fitted on the panel exterior base material (cement plate) 1A, and a flat plate (disk) having a steel pad at the tip. Although it penetrates and penetrates to 4F, what penetrates the flat board 4F and further screws into the concrete wall W may be used.
Further, an interface gap ad is more or less formed between the heat insulating layer 1B of the composite panel 1 and the concrete wall surface Wf. If the lower end or the upper end of the interface gap ad is airtightly sealed, a sealed air heat insulating layer is formed. Thus, the outer insulation function of the outer wall can be guaranteed.

  Therefore, the present invention adjusts the front and rear positions of the steel pad 4B group screwed and fitted on the back anchor 4C on the back anchor 4C while measuring the rear surface of the flat plate 4F, thereby making the steel pad 4B. In order to arrange the rear surface (panel contact surface) of the group to be flush with each other, each composite panel 1 group is positioned by contacting the rear surface of the flat plate 4F of the steel pad 4B group, and the surface Wf of the concrete outer wall W Regardless of whether it is uneven or not, it can be placed flush with the measurement.

And each composite panel 1 group is flush with the concrete outer wall W by arranging the steel pad 4B as a measurement standard in contact form with the uneven maximum protrusion of the concrete outer wall surface Wf. It can be stuck with the interface gap ad minimized.
The composite panel 1 is stretched on the concrete outer wall W by screwing and fixing the long screw 4A from the outer surface of the composite panel 1, that is, the cement plate 1A, through the panel 1 to the flat plate 4F of the pad 4B. Therefore, the composite panel 1 group can be easily implemented in a flush manner by a simple operation as long as the positioning of the long screw 4A to the pad 4B is appropriately performed.

And the composite panel 1 at the lowermost end is firmly supported and held also by the panel bracket 7A, and the post-construction anchor employed in the conventional example, for example, according to the weight of the panel 1 employed, If necessary, the long screw 4A to be driven into the steel pad 4B and the number and arrangement of conventional post-installed anchors are properly integrated into the concrete outer wall W, such as by joining the required position. Can be fixed.
Moreover, since it is not necessary to attach an adhesive to the concrete outer wall W, the panel can be installed without being influenced by the weather.
Therefore, the outer heat insulation method for the composite panel group of the present invention, which is externally attached to the concrete outer wall without using an adhesive, is advantageous not only for the external construction at the time of new construction, but also for the dry-type coating repair method for existing reinforced concrete buildings. Can be adopted.

Further, the second invention of the composite panel lining method is the first invention, and at the stage where the steel pads 4B are arranged flush with the post-casting anchor 4C, as shown in FIG. The connecting flat plate 10A (standard: width 80 mm, thickness 2.3 mm) is fixed on the flat plate 4F of the pad 4B in a form extending between the plurality of pads 4B, and each of the composite panels 1 is connected to the heat insulating layer 1B. In this method, the flat panel 10A is contacted and fixed to the connecting flat plate 10A from the surface of the composite panel 1 with a long screw 4A.
In this case, the connecting flat plate 10A may connect the pads 4B in the vertical direction or in the horizontal direction, but is preferably arranged in the horizontal direction on the seismic surface, at least on both sides straddling the panel parallel connection portion Jy. If pad 4B is connected, it will become earthquake resistance.
In other words, the connecting flat plate 10A may be a long object as shown in FIG. 7B, or a short object as shown in FIG. 7C. If the pad 4B is connected, the composite panel 1 group will be earthquake-proof.

And since each flat board 4F of steel pad 4B group is flush arrangement | positioning, 10 A of connection flat plates also provide the flush reference | standard as the whole surface was measured.
Accordingly, in the present invention, the connecting flat plates 10A are integrated with each other of the steel pads 4B, which are firmly held by the concrete anchor CF by the post-cast anchor 4C, and the long screw 4A is a composite panel as shown in FIG. 1 is fixed by screwing through the connecting flat plate 10A and the pad flat plate 4F, so that there is no variation and the vibration resistance and wind pressure resistance are improved.
In addition, as shown in FIG. 7B, the connecting flat plate 10A provides a driving screw-in position for the long screw 4A even at a position where the steel pad 4B is not present. In addition, it is possible at a position where the steel pad flat plate 4F is present on the lower surface or a position where only the connecting flat plate 10A is present, and the entire composite panel 1 can be firmly and uniformly fixed over the entire surface with good workability.

The composite panel 1 is a heat insulating composite panel in which a plate-like heat insulating layer 1B made of foamed plastic heat insulating material and an exterior base material 1A made of a molded thin rigid plate having a smaller moisture resistance than the heat insulating layer 1B are layered. preferable.
In this case, the foamed plastic heat insulating material is preferably a JISA9511 foamed plastic heat insulating material such as an extruded polystyrene foam or rigid urethane foam, and is typically a 75 mm thick JISA9511 extruded polystyrene foam plate.
In addition, the exterior base material 1A of the molded thin rigid plate has a lower moisture permeability resistance than the heat insulating layer 1B, and is a thin rigid plate (cement plate) having strength, impact resistance, and dimensional stability as the exterior base material of the outer wall. If the specific gravity is small, it is particularly preferable. Typically, light weight (10 kg / m ² ), high strength (100 kgf / cm ² ), moisture permeability resistance (14 m ² hmmHg / g), thickness 12 mm This is a magnesium cement board.

Therefore, the composite panel 1 can be stuck to the concrete outer wall W through the steel pads 4B that are measured and arranged on the same plane, regardless of the presence of the unevenness of the concrete outer wall W. with building the outer wall, moisture permeation resistance of moisture permeation resistance outside the outer base material of the heat insulating layer 1B (14m ² hmmHg / g) is (polystyrene foam 75mm thick extrusion) insulation layer 1B (52.5m ² hmmHg / g ), The composite panel 1 becomes a moisture-permeable outer wall, and the moisture content of the heat insulating layer 1B is moisture-permeable and released from the cement board (exterior base material) 1A to the outside to suppress internal condensation. I will provide a.
In addition, if the specific gravity of the exterior base material 1A is small, the weight of the composite panel 1 can be reduced, the composite panel 1 can be easily handled, and the tensioning operation can be facilitated. Fixing support becomes easy, and the post-casting bolt anchor 7B, the post-casting anchor 4C, the panel bracket and the like can be advantageously reduced in weight.

Further, the composite panel 1 is a breathable heat insulating composite panel in which a plate-like heat insulating layer 1B of a foamed plastic heat insulating material and an exterior base material 1A in which ventilation grooves G are vertically arranged on the inner surface are layered. Is preferred.
In this case, the breathable heat insulating composite panel 1 is typically a breathable heat insulating composite panel of Utility Model Registration No. 3084180 owned by the present applicant.
Therefore, when the breathable heat insulating composite panel is applied to the present invention, the flattening of the composite panels 1 in the construction of the outer surface of the concrete outer wall W can cause the surface Wf of the concrete outer wall W to be uneven. It can be easily constructed regardless of the extent, and the extrusion-molded cement board as the exterior base material 1A has a high strength, so it is possible to apply heavy exterior materials such as tiles, and the groove G is a ventilation layer. Construction of a breathable outer heat insulating outer wall can be carried out with good workability.

In the present invention, as shown in FIG. 4, the composite panel 1 includes a heat insulating layer 1B in which a ventilation groove G group is vertically arranged in parallel on the layering surface 1S of the foamed plastic heat insulating material, and the thickness is A breathable heat insulating composite panel in which a molded thin rigid plate exterior base material 1A having a specific gravity of 0.8 to 1.0 is 12 to 15 mm is particularly preferable.
In this case, the heat insulating layer 1B of the foamed plastic-based heat insulating material is a shape-retaining shape that can be attached in an integrated layer without crushing the groove G with the outer base material 1A of the molded thin rigid plate and the protruding thick part 1C between the grooves G. Any suitable plate-like material may be used, such as an extruded polystyrene foam, a beaded polystyrene foam, a rigid urethane foam, and the like. It is an extruded polystyrene foam of JISA9511.

Further, the ventilation groove G group is notched with a cutter to a depth that guarantees a minimum ascending flow of the draft air flow a and keeps the insulation defect due to the notch of the groove G group of the heat insulating layer 1B to a minimum. Typically, each groove G has a depth Gd of 15 mm and a width a1 of 45 mm, and the width a1 of the groove G and the width a2 of the thick portion 1C are equal.
Moreover, the exterior base material 1A of the molded thin rigid plate may be a thin rigid plate (cement plate) having the minimum strength, impact resistance, and dimensional stability as the exterior base material of the outer wall, and the plate thickness is If it is 15 mm or less and the specific gravity is 1.0 or less, the composite panel 1 as a whole can be reduced in weight and can be handled easily.

That is, as the exterior base material 1A, as shown in FIG. 4C, magnesium oxide and cinnabar sand are the main components, and a glass fiber nonwoven fabric Gc is embedded on both sides. A 12 mm magnesium cement plate 1A-1 is suitable for light weight (10 kg / m ² ) and high strength (100 kgf / cm ² ), and the dredged sand, slaked lime, and pulp shown in FIG. 4 (D) are dispersed in water. Formed into layers and combined with calcium oxalate Ca generated by autoclave curing, vermiculite Va is added to the base material, light weight (13.2 kg / m ² ), high strength (100 kgf / cm ² ) 12 mm As shown in FIG. 4 (E), a thick calcium silicate plate 1A-2, and light weight (12.12) made of volcanic gravel Ka and fly ash as main raw materials and glass fiber used as a reinforcing material. 4kg / m ² ) High-strength (100 kgf / cm ² ) and 13 mm thick phenolic resin plate 1A-3 can be suitably used.

Therefore, since the composite panel 1 arranges the groove G group on the heat insulation layer 1B side, the size and shape of the groove G are under the condition that the heat insulation defect is suppressed within the allowable limit and the ventilation function is exhibited. In addition, the size and shape can be freely arranged with a cutter, and the cement plate 1A can be a flat plate because it can be a flat plate, and the unit area is a lightweight panel. Combined with the fact that the panel 1 can be attached to the concrete outer wall W by using an adhesive without using an adhesive, and that it is easy to arrange the surface flush with the pad 4B. Can be implemented with good workability.
Moreover, since the outer wall to be obtained is a breathable outer heat insulating wall, it is possible to suppress the occurrence of internal condensation, to suppress moisture absorption that causes a decrease in the heat insulating function of the heat insulating layer 1B, and to suppress the heat stress of the exterior base material (cement board). It becomes a high quality outer heat insulating outer wall.

Further, in the present invention, the upper and lower and left and right connections between the composite panels 1 are constructed by phase-separated connection by the abutting contact of the heat insulating layer 1B of each composite panel 1, and the lower end of the lowermost composite panel 1 and The interface gap ad with the surface Wf of the concrete outer wall W is preferably airtightly sealed.
In this case, in the composite panel 1, for example, as shown in FIGS. 4A and 4B, the heat insulating layer 1B protrudes from the cement board (exterior base material) 1A so that the step d3 protrudes on the upper side and the step d2 on the lower side. It suffices to project the step d1 on the left side 1L and to enter the layer by entering the step d1 on the right side 1R.

  Therefore, the upper and lower and left and right connections of each composite panel 1 are in contact with each other by the abutting contact between the heat insulating layers 1B, so that the heat insulating layer 1B covering the concrete outer wall W becomes a form having no gap and has a heat insulating function as designed. Even if a slight gap occurs at the abutting contact interface of the heat insulating layer 1B, the contact interface between the heat insulating layers 1B is closed and protected on the surface of the cement board 1A due to the interphase connection between the panels. Intrusion of outside air into the contact interface of the layer 1B can be suppressed, and a decrease in heat insulation function due to air intrusion from the contact interface of the heat insulation layer 1B can be suppressed.

Moreover, since the composite panels 1 are arranged in contact with each other at the top and bottom and the left and right edges with a phase defect connection, the contact arrangement of the panels 1 by hand can be performed with good workability.
In addition, prevention of air inflow to the interface gap ad between the inner surface of the panel heat insulating layer 1B and the concrete outer wall surface Wf, which is essential in the outer heat insulating coating of the concrete outer wall W, is performed at the lower end of the lowermost panel 1. As shown in FIG. 2 (A), it can be carried out by a simple operation using the packing material PK and / or the sealing 12, and the air in the interfacial gap ad due to the unevenness of the concrete outer wall surface Wf becomes a sealed air layer. Functions as a heat insulating layer.

In the present invention in which the heat insulating layer 1B employs the composite panel 1 having the ventilation grooves G group, the lowermost composite panel 1 is the lower end of the ventilation grooves G group as shown in FIG. Is preferably communicated with the transverse groove G ', and the transverse groove G' is preferably communicated with the air holes H8, H11 provided in the panel brackets 7A, 11A.
In this case, the transverse groove G ′ may be formed with a width (depth) G′w of 30 mm and a height G′h of 15 mm as shown in FIG.
Therefore, since the transverse groove G ′ has a port function of communicating between the vertical grooves G, the air holes H8, H11 of the panel brackets 7A, 11A are local to the transverse groove G ′. Can also be passed through the air holes H8 and H11 to the groove G, and the perforations of the air holes H8 and H11 into the panel brackets 7A and 11A cause a decrease in strength of the panel brackets 7A and 11A. There can be no large spacing (standard: 100 mm).

Further, as shown in FIG. 2 (A), the lowermost composite panel 1 is such that the lower end of the exterior base material 1A is cut off and the lower end surface Sb of the heat insulating layer is supported on the panel brackets 7A and 11A in a contact form. preferable.
In the standard panel, since the lower end of the exterior base material 1A protrudes d2 (20 mm) from the lower end of the heat insulating layer 1B, if the standard panel 1 is adopted as the lowermost panel as it is, the air below the lower end surface Sb of the heat insulating layer The layer sealing process is complicated and difficult, and the rainwater intrusion prevention process from the lower end surface Sa of the exterior base material 1A is also difficult.

If the cement plate lower end surface Sa is flush with the heat insulating layer lower end surface Sb, the panel receiving metal 7A and 11A can support the panel 1 without impairing the rigidity of the panel 1, and the heat insulating layer lower end surface Sb and the panel receiving metal 7A, It becomes support in the state without an air layer between 11A.
Further, if the lower end surface Sa of the cement plate is set higher than the lower end surface Sb of the heat insulating layer, the panel brackets 7A and 11A support the panel 1 only by the heat insulating layer 1B. Since a gap is formed between the metal fittings 7A and 11A, the gap can be sealed to prevent rainwater from entering the heat insulation layer lower end surface Sb.
Therefore, if the cement board lower end surface Sa of the lowest end panel 1 is flush with the heat insulation layer lower end surface Sb or higher, the lowermost end composite panel 1 is in close contact pressure contact with the panel bracket of the heat insulation layer lower end surface Sb. If only the gap between the panel brackets 7A, 11A and the concrete housing surface Wf is completely air-tightened, the interface ad between the composite panel 1 and the concrete housing surface Wf can be converted to a sealed empty-bar male insulation layer. .

According to the present invention, the steel pad 4B group screwed onto the post-cast anchor 4C driven into the concrete outer wall W is measured, and the front and rear positions of the steel pad 4B are adjusted on the post-cast anchor 4C while measuring. In order to install, each composite panel 1 group can be stretched flush with the flat plate 4F of the steel pad 4B regardless of the unevenness of the surface Wf of the concrete outer wall W.
Moreover, since the composite panel 1 is attached by through-screwing and fastening the long screw 4A to the pad 4B from the panel surface, there is no displacement due to earthquake or wind pressure.

  In addition, fixing the composite panel 1 to the concrete outer wall W requires a complicated and difficult spotting work of a dumpling adhesive and a panel pressing work that causes personal errors of workers as in the past. Instead, since it is carried out only with the fixing bracket 4 such as the long screw 4A and the pad 4B and the panel receiving bracket 7A at the lowermost end, uniform panel stretching can be performed with good workability with simple work.

In addition, in conventional panel stretching with an adhesive and an anchor, the adhesive is affected by the weather because the adhesive performance is affected when the adhesive is cold or warm or rainy. However, in the present invention, the panel is stretched with adhesive. The panel can be installed efficiently without being influenced by the weather.
Therefore, the exterior thermal insulation coating construction on the concrete outer wall W by the thermal insulation composite panel 1 is easy to work on not only newly constructed reinforced concrete buildings but also existing reinforced concrete buildings, with the same outer wall surface not affected by the weather. Can be implemented well.

Further, in the second invention, the connecting flat plate 10A is further arranged on the steel pad 4B, and each composite panel 1 is fixed on the connecting flat plate 10A. One is guaranteed.
And since the connection flat plate 10A connects and integrates each steel pad 4B, the tension | tensile_strength panel 1 is equalized in support strength and an earthquake resistance and a wind-pressure resistance improve.
Moreover, since the connecting flat plate 10A provides a driving site for the long screw 4A for fixing the composite panel even at a site where the steel pad 4B does not exist, the long screw 4A can be additionally driven as required. This improves the workability of driving and makes it possible to give the necessary supporting force to the composite panel 1 group.

[Composite panel (Fig. 4)]
4A and 4B are explanatory views of the breathable heat insulating composite panel 1, wherein FIG. 4A is a perspective view, FIG. 4B is a cross-sectional view, and FIG. 4C is an enlarged view of a portion C in FIG. And (E) is a corresponding view of FIG. (C) in a state where different cement plates are employed.
That is, as shown in FIGS. 4A and 4B, in the standard type of the composite panel 1, a JISA9511 extruded polystyrene foam plate having a width BW of 900 mm and a thickness T3 of 75 mm is used as the heat insulating layer 1B. A groove G group having a depth Gd of 15 mm and a width a1 of 45 mm is formed on the surface 1S of the heat insulating layer 1B, and a thick portion 1C having a width a2 of 45 mm is present between the grooves G. In addition, each groove G is cut through vertically with a cutter so that a thick portion 1C ′ having a width a3 of 22.5 mm is present at both ends, and a heat insulating layer 1B is prepared. A layer of magnesium cement plate 1A-1 having a width AW of 900 mm and a thickness T2 of 12 mm as an exterior base material (cement plate) 1A is shifted by d1 (10 mm) in the horizontal direction with respect to the layer attachment surface 1S. It is a worn panel.

In the standard panel 1, as shown in FIG. 4A, the height Bh of the heat insulating layer 1B is the floor height (standard: 2832 mm), and a large step d3 (40 mm) at the upper end with respect to the cement board 1A. ) Projected, and entered at the lower end into a small step d2 (20 mm).
In this panel 1, the width a3 of the thick part 1C ′ at both ends is 22.5 mm and 1/2 of the width a2 (45 mm) of the intermediate thick part 1C. This is because the panels are connected in parallel. In this case, the thick portions 1C 'on both ends are connected to each other to form a thick portion of 45 mm, and when the concrete outer wall W is covered, the entire heat insulating layer 1B is a vertical strip having a width of 45 mm (a1). A groove and a thick portion 1C having a width of 45 mm (a2), and a ventilation function by the grooves G group, a cooling function against solar radiation overheating of the exterior base material (cement board) 1A-1, and moisture release from the heat insulating layer 1B This is because the function is uniformly imparted to the entire outer heat insulating outer wall.

  Further, the heat insulating layer 1B of the panel 1 has a large step d3 (40 mm) protruding at the upper end and a small step d2 (20 mm) inserted at the lower end so that the composite panel 1 and the heat insulating layer 1B collide with each other. In order to form a space for the horizontal joint dx of d3 (40 mm) -d2 (20 mm) between the upper and lower exterior base materials 1A when the upper and lower layers are connected, the cement plates 1A are connected to each other at the time of the upper and lower panel connection operation This is for the purpose of suppressing the collision deficiency and absorbing the stress due to the sealing of the horizontal joint dx at the time of earthquake during service life.

  Further, the panel 1 arranged at the lowermost end, that is, the panel 1 supported by the panel brackets 7A and 11A has a height across the entire width BW at the front end of the lower end of the heat insulating layer 1B as shown in FIG. G′h is 15 mm and width (depth) G′w is 30 mm. Prepared by cutting the transverse groove G ′ into an angle shape, and cut the cement plate 1A over the entire width AW at the lower end by 30 mm. Layered in the same way as the panel 1, and only the lower end is different from the standard panel 1, that is, at the lower end, the cement board 1A enters 10 mm from the lower end of the heat insulating layer 1B, and the lower end of the ventilation groove G group of the heat insulating layer 1B. Is a structure in which the transverse groove G ′ communicates.

[Panel bracket (Fig. 2)]
2B is a perspective view of the panel bracket 7A, and FIG. 2A is a longitudinal sectional view of the panel bracket in use.
As shown in FIG. 2 (A), the panel bracket 7A is fixed to the front surface of the foundation rising portion 5 of the concrete frame and supports the composite panel 1 at the lowermost end of the outer wall, as shown in FIG. 2 (B). The horizontal piece 7F has a width W7 of 125 mm, and the vertical piece 7W has a height h7 of 75 mm.
In the center of the vertical piece 7W in the height direction, a bolt anchor insertion hole H7 having a diameter of 12 mm is formed at regular intervals (standard: 900 mm).
An elliptical air hole H8 having a width of 10 mm and a length of 25 mm (L2) is drilled at regular intervals (standard: 100 mm intervals) at a position L1 (30 mm) from the front end of the horizontal piece 7F.

Further, as the post-cast bolt anchor 7B used for fixing the panel bracket 7A, a hard edge anchor (trade name) manufactured by Sanko Techno Co., Ltd. having a diameter of 10 mm and a length of 60 mm is prepared.
The post-strike bolt anchor 7B exhibits the ability of a maximum tensile load of 918 kgf / piece and a maximum shear load of 1122 kgf / piece.
In this case, even when a general-purpose tile having a height of 45 mm, a length of 95 mm, and a thickness of 7 mm is used as the exterior finishing material 2, the weight of the exterior finishing material is 18.1 kg / m. ^2, the weight of the outer base member (cement board) 1A is 11.4 kg / ^{m 2,} the weight of the heat-insulating layer 1B is a 1.5 kg / ^{m 2,} because the total weight is 31.0kg / ^{m 2,} the upper and lower the vertical load of about 310kg of panel area of four layers in the direction 9.72M ^2, by arranging the post-deposited Studs 7B at 900mm intervals (one per one panel), exhibited 2.3-fold of the support force And the safety factor is 2.3 times.

[Mounting bracket (Fig. 3)]
The mounting bracket 4 is composed of a long screw 4A which is a fixing bracket, a steel pad 4B for regulating the panel position, and a rear anchor 4C. The rear anchor 4C has an outer diameter of 8 mm and a long length as shown in FIG. A 50 mm long stainless steel pipe with a threaded surface 4S of 20 mm length on the outer periphery of the rear end and four widening cuts 4G on the front end, all manufactured by Sanko Techno Co., Ltd. As shown in FIG. 3C, the anchor 4C is an anchor (trade name). When the mandrel 4P is inserted into the rear end portion, the front half portion is inserted into the insertion hole H4 of the concrete outer wall W, and the hammer is struck with a hammer. The tip portion is expanded by the action of the mandrel and is firmly fixed to the concrete outer wall W.

Further, as shown in FIG. 3 (B), the steel pad 4B has an outer diameter at the center of the front surface of the vertical flat plate 4F of a steel disk having a diameter of 80 mm and a wall thickness of 2.3 mm for contacting the composite panel 1. A 25 mm cylindrical protrusion 4K protrudes 10 mm, a screw hole plate 4T having a thickness of 5 mm is formed at the tip of the protrusion 4K, and a screw hole H4 'having a diameter of 8 mm is formed in the center of the screw hole plate 4T. In the center of the flat plate 4F, a peep hole H4 ″ having a diameter of 12 mm for visualizing the screwing of the pad 4B to the post-fixed anchor 4C is arranged.
The long screw 4A is a drill screw (trade name) manufactured by Sanko Techno Co., Ltd., and is a stainless steel long screw having a diameter of 12 mm and a diameter of 6 mm and a length of 100 mm. Thus, the flat head penetrates the panel in a form embedded in the exterior base material 1A, the tip is screwed through the vertical flat plate 4F of the pad 4B, and the panel 1 is integrated with the steel pad 4B. .

[Construction of outer wall]
The present invention is applied to an external heat insulation construction method for dry coating repair in an existing reinforced concrete building.
[Arrangement of panel support (Fig. 2 (A))]
First of all, based on the panel layout drawing, confirm that the surface of the skeleton slab surface Wf is not landed so that the horizontal piece 7F of the panel bracket 7A is located 20mm below the first floor slab surface Sf of the existing building. Then, as shown in FIG. 2 (A), an insertion hole H7 having a diameter of 8.5 mm and a depth of 60 mm is used by aligning the concrete foundation rising portion 5 with the planned position of the post-cast bolt anchor 7B and using a drill. ′, The anchor insertion hole H7 of the vertical piece 7W of the panel bracket 7A is aligned with the hole H7 ′, and a post-fixed bolt anchor 7B having an outer diameter of 10 mm and a length of 60 mm is installed with an impact driver through a washer 7D. Then, it is screwed into the concrete insertion hole H7 '.

  In this case, the post-cast bolt anchor 7B exhibits a supporting force with a maximum tensile load of 918 kgf / piece and a shear maximum load of 1122 kgf / piece, and the bolt anchors 7B are spaced apart by 900 mm, that is, one per panel. If arranged, even if the standard panels 1 are stacked in four layers in the vertical direction and tiled as the exterior finishing material 2 on the panel surface, the supporting force is still 2.3 times.

[Arrangement of mounting brackets (Fig. 3)]
As shown in FIG. 5, a concrete wall is provided so that four pads 4B can be arranged on both sides, with a thickness of 1C at both ends of the panel 1 at an interval of about 900 mm in the vertical direction and four on each side. The arrangement position of the pad 4B is marked on the surface Wf, and then, based on the arrangement position of the mounting bracket 4 marked, the diameter of the concrete housing surface Wf is 8.5 mm using a drill as shown in FIG. If the hole H4 for insertion 40mm long is drilled in, the chips in the hole H4 are removed by a dust pump (not shown), and the hammer 4C is driven until the response changes with a hammer, the anchor 4C The front cut 4G is expanded in diameter, and the post-casting anchor 4C is firmly fixed to the concrete frame CF.

The post-casting anchor 4C exhibits a tensile load of 630 kgf / piece and a shear maximum load of 1080 kgf / piece.
Then, the pad 4B is screwed through the screw hole H4 ′ of the screw hole plate 4T onto the screw surface 4S of the post-fixed anchor 4C from which the rear part having the screw surface 4S protrudes (standard: 15 mm) from the concrete housing surface Wf. Each pad 4B has a pad 4B at the most overhanging (protruded) position of the concrete outer wall surface Wf as a reference pad 4B by contacting the screw hole plate 4T with the concrete outer wall W, and a flat plate 4F of each pad 4B. The front and rear positions of the rear surface are adjusted with water thread so as to be flush with the rear surface of the flat plate 4F of the reference pad 4B.

[Stretching composite panels (Fig. 1)]
As shown in FIG. 2A, on the horizontal piece 7F of the panel bracket 7A, the lowermost composite panel 1 group is arranged in a left-right phase-missing connection at the abutting contact between the heat insulating layers 1B.
In this case, the panel bracket 7A has an elliptical air hole H8 having a width of 10 mm and a length of L2 (25 mm) at a position L1 (30 mm) from the front end. Since G′w has a transverse groove G ′ of 30 mm, as shown in FIG. 2A, the air hole H8 of the panel bracket 7A is connected to each ventilation groove G through the transverse groove G ′. It becomes a communication form.

And the lowest end panel 1 abuts the surface of the heat insulating layer 1B on the steel flat plate 4F of the pad 4B arranged 8 pieces per one of the panels 1, and screws the long screw 4A from the surface of the panel 1, The tip of the long screw 4A is screwed through the flat plate 4F of the pad 4B and fixed to the pad flat plate 4F.
In this case, the flat head of the long screw 4A is fastened in a form of entering 2 to 3 mm from the surface of the cement board 1A, and the flat head surface is finished with the resin mortar 4M.
From the bottom to the top, the composite panels 1 are also connected to each other by the top and bottom phase missing connections at the abutting contact between the heat insulating layers 1B. It is fixedly attached to the pad 4B group supported.

[Arrangement of head metal fitting 6 (FIG. 1)]
As the cap metal fitting 6, a cap No. 366469 (not shown) owned by the present applicant is prepared by extending the upper horizontal plate 6U. As shown in FIG. The lower end of 6B is fixed to the upper end of the exterior base material (cement board) 1A with a screw Sc, and the front edge of the upper end of the bracket 6B is engaged with the engaging groove at the upper end of the inner surface of the headboard bracket 6 to The plate 6D is placed on the existing waterproof layer 9C, and is fixed to the concrete of the parapet P by passing through the existing waterproof layer 9C with screws Sc, and the newly installed waterproof layer 9A is covered on the upper surface of the lower horizontal plate 6D. A conventional sealing 12 is filled in the space between the edge of the head and the upper horizontal plate 6U of the head metal fitting 6.

[Exterior finish (Figure 1)]
On the exterior base material (cement board) 1A of the composite panel 1, the exterior finishing material (tile, painted wall, etc.) 2 selected by the customer is arranged. As shown in the figure, a sealing 12 is filled between the upper surface of the horizontal piece 7F of the panel receiving bracket 7A and the lower end surface of the cement plate 1A and the exterior finishing material 2 of the composite panel 1 via a conventional backup material 12B. A gap between the lower end of the vertical piece 7W of the metal fitting 7A and the concrete housing surface Wf is sealed with a sealing 12 in combination with a packing material PK as necessary.
In addition, as shown in FIG. 1B, the upper and lower connecting portions of the composite panel 1 have a conventional backup material 12B extended between the upper end of the lower cement plate 1A and the lower end of the upper cement plate 1A, and the front surface is Fill with sealing 12 to make horizontal joint dx.

  Therefore, in the obtained outer wall structure, each composite panel 1 is fixed with the long screw 4A to the pad 4B group that is screwed and fixed to the rear anchor 4C group having a strong supporting force, and the lowermost end. Because of the support by the panel bracket 7A, dropping and lifting are prevented, and each composite panel 1 is stuck in the form of contact with the pad 4B holding the surface level on the post-cast anchor 4C. The outer surface of the panel 1 can be stuck flush with the existing concrete frame surface Wf where there is unevenness.

And since the interface gap ad between the lower end of the lowermost composite panel 1 and the concrete casing is also air-sealed by the sealing 12, it is randomly generated between the concrete casing surface Wf and each composite panel heat insulating layer 1B. The interface gap ad becomes a sealed air layer and exhibits a heat insulating function.
Moreover, the air flow a flowing in from each air hole H8 of the panel bracket 7A flows into each vertical groove G group via the transverse groove G 'and becomes a draft rising air flow a. Ascending and flowing up to the metal fitting 6 can be discharged to the outside, and the draft rising air flow a can be raised up to the cap metal fitting 6 and the entire outer wall surface is in a uniform form, providing a uniform breathable outer heat insulation function. Play.

[Modification 1 (FIG. 6)]
6 (A) and 6 (B) show different embodiments of panel brackets for supporting the lowermost composite panel. FIG. 6 (A) is a longitudinal sectional view of the usage state, FIG. 6 (B). FIG. 3 is an exploded perspective view.
11 A of panel brackets consist of the receiving angle R11 of the equilateral mountain-shaped steel provided with the horizontal piece 11F and the vertical piece 11W, and the steel flat plate 11U used on the horizontal piece 11F of the receiving angle R11. A bolt anchor insertion hole H7 is arranged in the vertical piece 11W of R11, and an elliptic air hole H8 is arranged in the flat plate 11U.

  In the first modification, the flat plate 11U is placed and used on the horizontal piece 11F of the receiving angle R11, so that the flat plate 11U can be placed and fixed on the horizontal piece 11F. The flat plate 11U is fixed to the receiving angle R11 according to the panel position in advance according to the change in the front position, that is, the dimensional change of the interface gap ad between the panel 1 and the concrete wall surface Wf, or the flat plate 11U is fixed to the receiving angle R11. Can be dealt with, for example, by fixing the flat plate 11U to the receiving angle R11 after the flat plate 11U is aligned and slid with the panel 1, and the front end of the panel bracket 11A, ie, the flat plate 11U. It is possible to process the relative positions of the front end of the lower end and the front end of the lower end panel 1 in a uniform manner, and to align the lower end of the outer wall cleanly.

[Modification 2 (FIG. 7)]
7A and 7B show attachment means for the composite panel 1 for improving earthquake resistance and wind pressure resistance. FIG. 7A is a longitudinal sectional view, and FIG. 7B is a view as viewed from an arrow B in FIG. FIG. 7C is a transverse cross-sectional view when a short flat plate is employed, and FIG. 7D is a view as viewed from an arrow D in FIG. 7C.
That is, the connecting flat plate 10A is further overlapped on the surface of the group of steel pads 4B screwed to be flush with the post anchor 4C group, as shown in FIG. It is fixed to the flat plate 4F of the pad 4B with a screw 10S.
The connecting flat plate 10A may be a steel plate having a thickness of 2.3 mm and a width of 80 mm, and each pad 4B connected and integrated with each other by the connecting flat plate 10A exhibits a uniform panel supporting force.

In this case, the steel connecting flat plate 10A integrally connects the left and right pads 4B straddling the connection portion Jy of the panel 1, and also serves as a driving area for the long screw 4A for fixing the panel 1.
Accordingly, the long screw 4A can be placed not only on the flat plate 4F surface of the pad 4B but also only on the connecting flat plate 10A where the pad 4B does not exist, and the degree of freedom of driving the long screw 4A into the panel 1 is increased. Improves the necessary reinforcement driving.
The connecting flat plate 10A is not only a long object as shown in FIG. 7 (B) but also a short piece as shown in FIG. 7 (C), which connects the pads 4B on both sides straddling the panel parallel connection portion Jy. Improvement in wind resistance and wind resistance can be expected.

[Others]
The panel brackets 7A and 11A of the present invention support the entire weight of the composite panel 1, and the mounting bracket 4 supports the composite panel 1 in a form of protruding from the pad 4B. The fixing is safe and the outer structure is highly reliable.
And the panel brackets 7A and 11A also prevent the panel 1 from sagging due to creeping over time.
Therefore, by arranging the panel brackets 7A and 11A every several floors (standard: 4th floor), the panel brackets 7A and 11A can be applied to an outer wall of a high-rise building.

Further, in the embodiment, the lightweight breathable heat insulating composite panel 1 is adopted as the composite panel 1 (FIG. 4), but the present invention is applied to the adhesion layer type heat insulating composite panel having no air-permeable layer of the conventional examples 1 and 2. Even if it is applied to a heavy breathable thermal insulation composite panel using an extruded cement board of utility model registration No. 3084180 owned by the present applicant, the adhesive of the composite panel is not used. It can be applied to the concrete outer wall.
And when applying to these various composite panels having different thicknesses and weights, it is only necessary to properly use the post-fixed anchor 4C, the long screw 4A, etc. by appropriately changing the size and / or the number of used.

It is a longitudinal cross-sectional view of the outer wall which implemented this invention, (A) is an outer wall upper end part, (B) is a composite panel up-down connection part, (C) is a figure which shows an outer wall lower end part. It is explanatory drawing of the outer wall lower end part of this invention, Comprising: (A) is a longitudinal cross-sectional view, (B) is a perspective view of a panel bracket, (C) is a partially notched perspective view of a panel lower end. BRIEF DESCRIPTION OF THE DRAWINGS It is composite panel attachment explanatory drawing of this invention, Comprising: (A) is a longitudinal cross-sectional view of a composite panel attachment part, (B) is a perspective view of a steel pad, (C) is an attachment explanatory drawing of the pad to a back anchor It is. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of a composite panel, (A) is a perspective view, (B) is a cross-sectional view, (C) is the C section enlarged view of FIG. (B), (D), (E) is different exterior, respectively. It is a correspondence diagram of Drawing (C) in the state where a foundation material was applied. It is arrangement | positioning explanatory drawing of the attachment metal fitting to the composite panel of this invention. It is explanatory drawing of the modification 1 of this invention, Comprising: (A) is a use condition longitudinal cross-sectional view, (B) is an exploded perspective view of a panel bracket. It is explanatory drawing of 2nd invention, Comprising: (A) is a principal part longitudinal cross-sectional view, (B) is the arrow B view of (A), (C) is a principal part cross-sectional view, (D) is (C). FIG. It is sectional drawing of the prior art example 1, Comprising: (A) is an outer wall cross-sectional view, (B) is arrangement | positioning explanatory drawing of the hole for anchor insertion to a composite panel, (C) is arrangement | positioning description of the adhesive agent on the surface of a concrete frame. FIG. 4D is a cross-sectional view of the placement adhesive. It is sectional drawing of the prior art example 2, Comprising: (A) is an outer wall cross-sectional view, (B) is the B section enlarged view of (A), (C) is an outer wall upper end longitudinal section, (D) is an outer wall lower end part It is a longitudinal cross-sectional view.

Explanation of symbols

1 Composite panel (heat insulation composite panel, panel)
1A Exterior base material (cement board)
1A-1 Magnesium cement board (cement board)
1A-2 Calcium silicate board (cement board)
1A-3 Phenolic resin board (cement board)
1B Heat insulation layer 1C Thick part 1S Layer surface 2 Exterior finishing material 4 Fixing bracket (Mounting bracket)
4A Long screw 4B Steel pad
4C Post-cast anchor 4F Flat plate 4G Cut 4K Protrusion 4M Resin mortar 4S Screw surface 4T Screw hole plate 5 Rising base plate 6 Coupling metal bracket 6B Bracket 6D Lower horizontal plate 6U Upper horizontal plate 7A, 11A Panel support bracket 7B Post strike bolt anchor 7C Nut 7D Washer 7F, 11F Horizontal piece 7W, 11W Vertical piece

9A New waterproof layer (waterproof layer)
9B Roof heat insulation layer 9C Existing waterproof layer (waterproof layer)
10A Connection flat plate 10S Machine screw 11U Flat plate 12 Sealing 12B Backup material a Draft rising air flow (air flow)
ad Interfacial gap CF Concrete frame dx Horizontal joint G groove (longitudinal groove)
G 'Transverse groove (strip, lateral groove)
Gc Glass fiber nonwoven fabric Gd Groove depth H4, H7 'Insertion hole (hole)
H4 'Screw hole H4 "Peep hole H7 Anchor insertion hole H8 Air hole Jy Panel parallel connection (connection)
Ka Volcanic gravel P Parapet R11 Receiving angle S Concrete floor slab Sa Cement plate lower end surface Sb Thermal insulation lower end surface Sc Screw Sf Floor slab surface Va Vermiculite W Concrete outer wall (concrete wall, outer wall)
Wf surface (concrete body surface)

Claims (8)

  This is a method of laying a dry adhesion layer type heat insulation composite panel on the concrete outer wall of a reinforced concrete building. At the lower end position of the lowermost composite panel (1), a concrete anchor (CF) is attached to a concrete bolt (CF) 7B), fixing the angle-shaped panel bracket (7A, 11A), and at the predetermined position of the concrete outer wall (W), the rear-end anchor (4C) whose rear end outer periphery is a threaded surface (4S) is The screw surface (4S) is placed and fixed in a projecting form, and then a screw hole (H4 ') is provided from the flat plate (4F) on the rear end screw surface (4S) of each rear anchor (4C). The steel pads (4B) with the protrusions (4K) protruding to the front are screwed together, and the flat end of each steel pad (4B) is measured to place the pads (4B) flush with each other. And then the lower end of the lowest composite panel (1) The composite panel (1A) is supported by the panel brackets (7A, 11A), and the heat insulation layer (1B) surface is brought into contact with the flat plate (4F) of each steel pad (4B). The composite panel (1) is stretched by fixing the composite panel (1) to the concrete outer wall (W) in a flat form by fixing it to each steel pad (4B) from the surface of the steel plate with a long screw (4A) group. Method.   In the exterior construction method of Claim 1, on each pad (4B) arrange | positioned in the same plane, a connection flat plate (10A) is further provided in the form which spans between several pads (4B). ) Are fixed on the flat plate (4F), each composite panel (1) is brought into contact with the connecting flat plate (10A) with the heat insulating layer (1B), and connected with the long screw (4A) from the surface of the composite panel (1). A composite panel external construction method for fixing to a flat plate (10A).   Thermal insulation in which the composite panel (1) is layered with a plate-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 having a moisture permeability resistance smaller than that of the heat insulating layer (1B) 3. The method for constructing an outer covering according to claim 1 or 2, which is a composite panel.   The composite panel (1) has a breathability in which a plate-like heat insulating layer (1B) of a foamed plastic-based heat insulating material and an exterior base material (1A) in which inner grooves (G) are arranged in parallel on the inner surface are layered. The method for constructing an outer covering according to claim 1 or 2, which is a heat insulating composite panel.   The composite panel (1) has a heat insulation layer (1B) in which a ventilation groove (G) group is arranged in parallel on the layering surface (1S) of the foamed plastic heat insulating material, a thickness of 12 to 15 mm, and a specific gravity. 3. The method for constructing an outer covering according to claim 1, which is a breathable heat insulating composite panel formed by laminating a 0.8 to 1.0 molded thin rigid plate exterior base material (1 </ b> A).   The upper and lower and left and right connections between the composite panels (1) are constructed by phase-breaking connection by the abutting contact of the heat insulating layer (1B) of each composite panel (1), and the lower end of the lowest composite panel (1), 6. The method for constructing an outer covering according to any one of claims 1 to 5, wherein an interfacial gap (ad) with the surface (Wf) of the concrete outer wall (W) is hermetically sealed.   The lowermost composite panel (1) communicates the lower end of the ventilation groove (G) group with a transverse groove (G ′), and has air holes (H8, H11) disposed in the panel brackets (7A, 11A). ) Is connected to the transverse groove (G ′).   The lowermost composite panel (1) cuts the lower end of the exterior base material (1A) and supports the lower end surface (Sb) of the heat insulating layer in contact with the panel bracket (7A, 11A). 7. The method of external construction according to any one of 7 above.

Images