JP4799605B2 - Breathable thermal insulation composite panel for reinforced concrete exterior thermal insulation building, and exterior thermal insulation outer wall structure using the panel - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a dry-contact type breathable heat insulating composite panel suitable for construction of an outer wall of a reinforced concrete outer heat insulating building, and an outer wall structure of a reinforced concrete building constructed by the breathable heat insulating composite panel. Belongs to the field.

Various proposals have been made in the past for making a reinforced concrete building as an outer insulation and constructing a reinforced concrete outer insulation building with a dry-contact type breathable composite panel.
FIG. 8 shows Conventional Example 1 cited as Patent Document 1, which is already being implemented by the present applicant.
That is, Conventional Example 1 (FIG. 8) is a dry-contact type breathable heat insulation in which a 25 mm thick extruded cement board having a group of grooves for ventilation on the inner surface and a 75 mm thick heat insulating material are layered. It is a composite panel.

As shown in FIG. 8 (A), the panel of Patent Document 1 (FIG. 8) has a 490 mm wide extruded cement board that is 20 mm lower than one 500 mm wide heat insulating material and protrudes 10 mm at the other end. In this configuration, the left and right connections between the panels can be phase-separated, and a vertical joint 10 mm is formed between the cement plates at the left and right connection portions.
A 25 mm thick cement board is provided with a groove group having a depth of 13 mm, and the groove group releases moisture from the heat insulating material.
FIG. 8B is a modification of the panel of FIG. 8A, and a facing groove having a depth of 10 mm is also arranged on the heat insulating material side to increase the groove depth, This is intended to improve the air flow through the groove.

  Further, FIG. 9 shows an external heat insulation panel used as a mold as mentioned in the conventional example 2, and as shown in FIG. 9 (A), a ventilation groove group is arranged on the surface of the hard foam plastic heat insulation board, The base material is integrally layered on the layering surface, and a phase defect step is formed on both sides of the exterior base material, and a joint member is attached to one phase defect step.

Then, as shown in FIG. 9 (B), a lateral communication groove that opens to a side end that communicates each vertical ventilation groove in the left-right direction is formed in a part of the upper end surface or the lower end surface of the heat insulation board. In addition, a base member for the upper part (lower part) of the opening that covers the upper or lower surface of the heat insulation board is arranged, and the upper or lower surface of the heat insulation board is covered with a base member for the upper part (lower part) of the opening to prevent exposure. The vertical ventilation grooves at the upper end portion or the lower end portion can be ventilated on both sides of the opening portion by the lateral communication grooves.
JP 2008-2159 A JP 2007-285023 A

The composite panel of Conventional Example 1 (FIG. 8) is a high-strength panel in which an extrusion-molded cement board is extruded into a plate shape using cement, an oxalic acid raw material, and a fiber raw material as main raw materials, and is cured in an autoclave. In order to ensure sufficient strength as a concrete formwork and to ensure a predetermined ventilation function by the groove group for ventilation, in order to secure the groove group of about 13 mm depth, The standard size cement board with a height of 2680 mm and a width of 490 mm is as heavy as 35 kg / m ^2, and there is no workability for drilling such as cutting, separator insertion holes and anchor bolt insertion holes.

The composite panel is used as an outer frame of the concrete outer wall by laminating a light plate (1.5 kg / m ² ) with a flat plate shape that is 75 mm thick and has no insulation defect on the cement plate. The work of forming a 36.5 kg / m ² panel so as not to cause collision damage is a difficult work, and there is also a demand for weight reduction of the composite panel for the outer wall from the construction side.

In addition, since the extrusion-molded cement board is an extrusion-molded product with a die, any cross-sectional groove group can be formed on a rigid cement board as designed and in a mass production system. There is a risk that warpage occurs during drying in the process, and cracks due to warpage occur when the layer is integrated with the heat insulating material.
Therefore, the extrusion-molded cement board has a short width (standard: 490 mm) and a composite panel width that is short in order to suppress the occurrence of warpage. The number of joints (vertical joints) increases and the amount of finishing work on the outer wall surface also increases.

  In addition, the extruded cement board that bears the required rigidity of the composite panel is equipped with a group of grooves for ventilation, and when it is attached to the outer wall, between the cement boards of the upper and lower composite panels, collision loss during construction is prevented. From the viewpoint of preventing collision loss between cement boards at the time of an earthquake in a completed building, it is essential to form and maintain horizontal joints (intervals), so the vertical connection part between composite panels, that is, the horizontal joint part, The connection of the upper and lower groove groups between the upper and lower cement plates is possible only by the technique developed by the inventor of the present application, adopting a honeycomb ventilation backer with a small cross-sectional shape that also serves as a sealing backup material. It is a complicated and elaborate work with low productivity.

  Further, even in the improved type shown in FIG. 8B, the groove on the heat insulating material side has a depth of 10 mm with few heat insulation defects, but the groove group of the extruded cement board is molded, and the heat insulating material Since this groove group is a post-processing on the plate material, layering to align each groove group as designed of the extruded cement board and the heat insulating material is a complicated and precise work, improving the ventilation function Although it is less effective, it is complicated and difficult to manufacture, and it is accompanied by a heat insulation defect due to the groove notch of the heat insulating material. The construction is also complicated and precise as in the panel of FIG. It requires work and is a low productivity work.

  Further, the external heat insulation panel for both the formwork of Conventional Example 2 (FIG. 9) is a fiber-mixed cement board whose exterior base material is 10 to 16 mm in thickness, provided with joint joint steps on both left and right edges, and made of elastic plastic. The joint material is arranged, and it prevents the leakage of `` noro '' of the cast concrete and facilitates the mutual alignment of the panels, but because the joint joint on one side protrudes from the panel side edge, There is a problem of damage during packing, transportation, production and installation.

Further, since the heat insulating board has a thickness of 30 to 60 mm and the vertical ventilation groove is also 20 mm deep, the heat insulation defect due to the vertical ventilation groove is large.
Further, since the horizontal communication grooves are arranged in different types of cutters, the cutouts cannot be arranged at the same time as the vertical ventilation grooves, resulting in poor panel manufacturing workability.
And from the relationship between the vertical ventilation groove (depth 20 mm) and the thickness of the heat insulation board (thickness 30 to 60 mm), the lateral communication groove may be deformed by the side pressure (average: 6 ton / m ² ) at the time of placing concrete. There is also.

Moreover, in both Conventional Example 1 (FIG. 8) and Conventional Example 2 (FIG. 9), the cement plate (exterior base material) is bonded to the heat insulating material (heat insulating board) and the surface other than the groove portion, Solar radiation heating to the exterior base material (cement board) immediately heats and stores the heat insulating material (heat insulating board), and becomes a heat load to the heat insulating material (heat insulating board), protecting the outside heat insulation inside the building by the panel Reduce action.
The present invention solves or improves the problems of the conventional examples 1 and 2 all at once, and provides a novel outer heat insulating composite panel and an outer wall structure of a reinforced concrete building that achieves energy saving by applying the panel. To do.

  For example, as shown in FIG. 1, the breathable heat insulating composite panel 1 of the present invention includes an outer first ventilation layer G1 and an inner second ventilation layer G2 between an exterior base material 2A and a heat insulation layer 2E. The outer wall breathable heat insulating composite panel 1, the exterior base material 2A is a lightweight, high-strength thin rigid plate, the vertical rails 2B are fixed to the inner surface at appropriate intervals, and the heat insulating layer 2E is the exterior base material 2A. A foamed plastic heat insulating plate having the same width as that of the above, with the ventilator rim 2D fixed to the outer surface at appropriate intervals, and the outer surface of the ventilator rim 2D is attached with a reflective layer 2C having a radiation heat reflecting function on both sides, The reflective layer 2C on the layer 2E side is formed by integrally attaching the vertical beam 2B on the exterior base material 2A side to the ventilator edge 2D in a sandwiched manner.

In this case, the exterior base material 2A is a thin rigid plate having a thickness of 16 mm or less, which has a minimum strength, impact resistance, and water resistance as an exterior base material of the outer wall, and is capable of withstanding a concrete frame. Lightweight (10 kg / m ² ), high strength (100 kgf / cm ² ), 12 mm thick magnesium cement plate with volcanic gravel (Sa) And light ash (12.4 kg / m ² ), high strength (100 kgf / cm ² ), 13 mm thick phenol resin plate Cement and fly ash as main raw materials, blended with fibers, lightweight (13.8 to 18.4 kg / m ² ), high strength (123 kgf / cm ² ), 12 mm, 14 mm, 15 mm, 16 mm thick fiber mixture Cement succinic acid It may be employed calcium plate or the like.

Further, the foamed plastic heat insulating plate as the heat insulating layer 2E may have any shape retaining property capable of integrally bonding the ventilator edge 2D, such as an extrusion method polystyrene foam, a bead method polystyrene foam, a rigid urethane foam, etc. JIS 9595 foamed plastic insulation can be used. Typically, the “Next Generation Energy Conservation Standards” announced in 1999 will be used. This is a polystyrene foam plate of JISA9511 having a thickness of 75 mm that clears a thermal resistance value of 1.8 m ² / mk.

  In addition, the reflection layer 2C may be a radiation heat reflection layer on both the front and back surfaces, and it is possible to adopt a thin plate or sheet having a radiation heat reflection function on both the front and back surfaces such as an aluminum foil, and a 3 mm thick acrylic resin plate, If a thin plate with aluminum foil attached to both sides, such as a 4mm thick plywood, is used, there will be dimensional stability and it will be displaced even when the air flow a flows into and out of the first and second ventilation layers G1 and G2. However, it is typically a conventional aluminum foil film having a thickness of 0.022 mm in which an aluminum foil is attached to both surfaces of the plastic film in view of cost, preparation, and the like.

The ventilator edge 2D has a reflective layer 2C stretched on the surface thereof to form an inner ventilation layer G2 between the reflective layer 2C and the surface of the heat insulating layer 2E. Since the outer ventilation layer G1 is formed between 2C and the inner surface of the exterior base material 2A, the width and thickness of the ventilation trunk edge 2D and the width and thickness of the vertical rail 2B are the strength of the panel 1, The air flow a of the first and second ventilation layers G1 and G2 may be appropriately determined from the viewpoint of the through-flow function. Theoretically, if the flow velocity of the draft rising air flow a is 0.01 m / s or more, the minimum The function of preventing condensation due to moisture release, the function of discharging radiant heat, and the function of cooling the exterior base material can be guaranteed.
Therefore, typically, the ventilation trunk edge 2D and the vertical beam 2B are both the same width (standard: 50 mm), and five are arranged in one panel as shown in FIG. The depth of G1 is 14 mm, the depth of the second ventilation layer G2 is 15 mm, and both the first ventilation layer G1 and the second ventilation layer G2 theoretically provide a draft rising air flow a of 0.028 m / s. It is.

  Therefore, if the outer wall of the reinforced concrete building is covered with the heat insulating composite panel 1 of the present invention, the draft that flows through the first ventilation layer G1 between the reflective layer 2C and the exterior base material 2A through the outer wall heated by solar radiation. The rising air flow a is cooled, and the high-temperature heat in the first ventilation layer G1 is eliminated by the rising air flow a without being added to the inside of the panel, that is, the heat insulating layer 2E, by the radiant heat reflection action by the reflection layer 2C, and reflected. The layer 2C suppresses heat transfer from the exterior base material 2A side to the heat insulating layer 2E side in terms of convection, radiation, and conduction, and thermally protects the heat insulating layer 2E.

The second ventilation layer G2 between the reflective layer 2C and the heat insulating layer 2E eliminates moisture (water vapor) from the heat insulating layer 2E with the draft rising air flow a, and suppresses a decrease in heat insulating function due to moisture absorption of the heat insulating layer 2E. To do.
Therefore, the breathable outer heat insulating composite panel 1 does not heat and store the solar heat from the outer wall surface in the heat insulating layer 2E, and releases the water vapor (humidity) of the heat insulating layer 2E to the outside. Providing excellent, high-quality concrete exterior insulation exterior walls.
In addition, the reflective layer 2C constituting the outer surface of the second ventilation layer G2 reduces and adds part of the radiant heat in the second ventilation layer G2 to the heat insulation layer 2E, so that the heat insulation layer 2E is heated during the indoor heating period. Cooling suppression effect can also be expected.

  In addition, since the exterior base material 2A has the space of the first ventilation layer G1 for circulating the outside air on the back surface, it is ensured that outside air is introduced into and discharged from the first ventilation layer G1 of each panel 1 when the outer wall is constructed. In addition, by stretching each panel 1, the outer surface side of the exterior base material 2A, that is, the outer surface of the exterior base material and the inner surface of the exterior base material 2A become the same pressure, or an equivalent pressure approximate wind pressure even in a strong wind. The peeling action on the exterior material (exterior base material 2A + exterior finishing material 4) can be greatly reduced, and it is possible to provide an outer wall that does not cause deformation or separation of the exterior material even during a typhoon or the like.

Further, in the breathable heat insulating composite panel 1 of the present invention, the heat insulating layer 2E and the exterior base material 2A hold the step d1 for left and right phase chipping bonding at both side edges, and the heat insulating layer 2E has upper and lower ends at the upper and lower ends. It is preferable to provide a notch C2 for phase chip joining.
In addition, from the viewpoint of manufacturing and construction, the panel 1 has a side wall 2E and a vertical rail 2B, as shown in FIG. In this case, the step d1 for phase-breaking joining on the side surfaces of the heat insulating layer 2E side and the exterior base material 2A side is ensured to be 10 mm as a standard.

In addition, as shown in FIG. 2, the notch C2 for connecting the phase claw at the upper and lower ends of the heat insulating layer 2E is preferably formed on the rear surface side of the heat insulating layer at the lower end and on the front surface side of the heat insulating layer at the upper end. The standard length d2 may be 20 mm.
In this case, as shown in FIG. 6 (A), the upper and lower panels 1 and 2 are joined to each other at the abutting contact surface of the heat insulating layer on the rear surface side of the panel from the front side of the panel with a step d2 (standard: 20 mm). ) Even if rainwater or the like enters from the panel upper and lower contact surfaces, it does not enter the concrete floor slab surface Sf.

  Therefore, if the panel 1 of the present invention is used, the abutting and abutting work of the upper and lower, left and right heat insulating layers 2E between the panels 1 as a discarded frame of the concrete outer wall is easy, and FIG. As shown in FIG. 2, the heat insulation layer contact surface dy and the exterior base material contact surface dy ′ on the left and right contact surfaces of the panels 1 are in a phase-bonded form, and the heat insulation layer 2E at the time of placing the concrete. It is possible to prevent leakage of the concrete liquid (NORO) from the back surface to the surface of the exterior base material 2A. In addition, leakage of concrete (concrete liquid) from the rear surface of the heat insulation layer to the front surface of the heat insulation layer can be prevented.

In the composite panel of the present invention, as shown in FIG. 2, the upper end and the lower end of the reflective layer 2C are fixed and held by a ventilation backer 2F extended and fixed to the heat insulating layer 2E between the ventilation cylinder edges 2D. preferable.
In this case, as shown in FIG. 2 (D), the ventilation backer 2F has a height Fh of 20 mm, a thickness Ft of 15 mm which is the same size as the depth of the second ventilation layer G2, and a length between the ventilation cylinder edges 2D. What is necessary is just to employ | adopt.
And the upper end ventilation backer 2F is arranged so that the upper end is aligned with the upper end of the exterior base material 2A, and the lower end edge of the lower end ventilation backer 2F is smaller than the panel lower end 2d surface, that is, the heat insulation layer lower end surface. (Standard: 3 mm) The protrusion form is preferable from the standpoint of preventing rainwater from entering the contact surface of the heat insulating layer 2E when the panel 1 is vertically joined.

Therefore, since the upper end and the lower end of the reflective layer 2C are held by the ventilation backer 2F, it is possible to adopt a 0.022 mm aluminum foil film 2C that is inexpensive and easily available as the reflective layer 2C. The aluminum foil film 2C that partitions the first ventilation layer G1 and the second ventilation layer G2 does not cause “flapping” due to wind pressure at the upper and lower ends.
Then, as shown in FIGS. 2B and 2C, the upper end edge of the aluminum foil film 2C, that is, the upper end edge of the upper end ventilation backer 2F is flush with the upper end edge of the exterior base material 2A. ), The air flow a to the first ventilation layer G1 and the second ventilation layer G2 from the horizontal joint distance dx of the upper and lower joints of the panel 1 can be ensured.

In the composite panel 1 of the present invention, the heat insulating layer 2E is an extruded polystyrene foam plate having a thickness T6 of 75 mm and a width EW of 910 mm, and the ventilator edge 2D is made of wood powder and polystyrene resin. The high density expanded polystyrene synthetic wood is a plate material having a thickness Td of 20 mm and a width a1 of 50 mm, and the ventilator edge 2D is preferably bonded and integrated through a fixing notch Ec of the heat insulating layer 2E.
In this case, the fixing notch Ec is for firmly bonding and integrating the ventilation trunk edge 2D, and the ventilation trunk edge 2D forms the second ventilation layer G2 with a protruding dimension from the surface of the heat insulating layer 2E. Therefore, typically, as shown in FIG. 3 (F), a total of five fixing notches Ec having a depth (d4) of 5 mm are arranged at both ends and in the middle.

Therefore, the heat insulation layer 2E clears the heat resistance value of 1.8 m ² / mk (heat insulation material thickness: 65 mm) according to the “next generation energy saving standard” announced in 1999, and the ventilator edge 2D is bonded with urethane resin. By adopting the agent, the heat insulating layer 2E can be firmly fixed by the synergistic effect of the compatibility of the adhesive and the partially embedded form.
And the embedding fixation to the heat insulation layer 2E surface of the ventilation trunk edge 2D group gives sufficient draft ventilation performance under the suppression of the heat insulation defect of the heat insulation layer 2E, and each for the heat insulation layer width EW (910 mm). The buried arrangement area of the ventilator edge 2D is also suppressed to 30% or less by using five ventilator edges 2D.
For this reason, the panel of the present invention is rich in energy saving properties excellent in reducing conduction heat and blocking radiant heat.

In the panel 1 of the present invention, the exterior base material 2A has the same width AW as the heat insulating layer 2E, a thickness T2 of 12 to 16 mm, a weight of 10 to 18 kg / m ² , and a strength of 100 to 100. It is a 123 kgf / cm < ² > thin rigid plate, and the vertical beam 2B is preferably the same material and the same thickness as the exterior base material 2A.
In this case, as the exterior base material 2A, a magnesium cement board having a weight of 10 kg / m ² , a strength of 100 kgf / cm ² and a thickness of 12 mm, a weight of 12.4 kg / m ² and a strength of 100 kgf / cm ² , A phenolic resin plate with a thickness of 13 mm can also be used, but typically, cement and fly ash are the main raw materials and the fiber is blended, weight 15.6 kg / m ² , strength (bending strength) 123 kgf / Cm ² , a cement calcium oxalate plate with a thickness of 14 mm.

Therefore, the exterior base material 2A has a weight of 39.8 kg per standard panel (middle floor panel) having a width of 910 mm and a height of 2680 mm, and the specific gravity is approximately 1 of that of a conventional extruded cement board. / 2 and a thin plate (14 mm), so that the width (910 mm) is much wider than the width of the conventional extruded cement plate (standard: 490 mm), but still 86% weight of the conventional extruded cement plate If the weight can be reduced and the bending strength is 100 kgf / cm ² , the strength for the mold frame and the strength as the exterior base material are sufficient even if the panel 1 is adopted as the concrete formwork frame.

  And the vertical beam 2B arranged on the back surface (inner surface) side of the exterior base material 2A corresponding to the ventilation trunk edge 2D on the heat insulation layer 2E side is made of the same material and the same thickness (14 mm) as the exterior base material 2A. The outer base material 2A can be cut out and prepared, the end material of the outer base material 2A can be used, and the number of types of members for manufacturing the composite panel 1 can be reduced, which is advantageous in terms of member management and resistance. Since the physical properties such as water permeability, length change rate due to water absorption, thermal expansion coefficient, etc. are the same, the exterior base material 2A in which the vertical rails 2B are layered and integrated is also free from distortion, as if it were an integrally molded product. Dimensional stability is obtained.

Therefore, as shown in FIG. 1 (B), the panel 1 is formed of the nail Na at the vertical beam 2B portion integrated with the exterior base material 2A with respect to the ventilation trunk edge 2D firmly embedded and bonded to the heat insulating layer 2E. By integrating the exterior base material 2A with the heat insulating layer 2E side by driving, dimensional distortion does not occur during the service life, and it is lightweight and has sufficient strength.
Therefore, even if the composite panel 1 of the present invention is about 1.8 times wider (standard: 910 mm) than the conventional composite panel (standard width: 490 mm) using an extruded cement board, the weight is substantially half. It can be reduced in weight, and it can be handled manually on the construction site even without a lifting machine, so the workability is improved and the weight reduction demand from the conventional construction site can be met.

In the composite panel 1 of the present invention, as shown in FIG. 1 (B), both side surfaces of the heat insulating layer 2E are flush with the ventilation trunk edge 2D at both ends, and both side surfaces of the exterior base material 2A are at both ends. It is preferably flush with the vertical beam 2B, and nails Na are driven into the vertical beam 2B and the ventilator edge 2D from the outer surface of the exterior base material 2A to fix the exterior base material 2A side to the heat insulating layer 2E side.
The exterior base material 2A side means a member on the exterior base material 2A side in which the vertical rails 2B are integrated, and the heat insulation layer 2E side is an integrated layer of the reflective layer 2C and the ventilator edge 2D. It means the member on the heat insulating layer 2E side.

  Therefore, when the panel 1 is manufactured, the integrated adhesion between the heat insulating layer 2E and the ventilator rim 2D at both ends is an integrated adhesion operation in which the side surfaces of the exterior base material 2A and the vertical rails 2B at both ends are aligned, thereby improving workability. As shown in FIG. 1 (B), the finished panel 1 can be attached to the integrated layer, and the side surface is the same side surface of the heat insulation layer side member (heat insulation layer 2E + ventilation trunk edge 2D + reflection layer 2C) and the exterior base material side. It is composed of the same side of the member (exterior base material 2A + vertical beam 2B), and the both sides of the panel are integrated by nailing on the both sides of the same width with the phase gap joint step d1 (standard: 10 mm). The surface is in the form of a vertical surface with a phase gap step d1.

Therefore, in the parallel connection work between the panels 1, when the side surfaces of the heat insulating layer 2E are brought into contact with each other, the rigid ventilation trunk edge 2D bears a collision action, so that the end face on the heat insulating layer 2E side is not damaged. Even when placing concrete, as shown in FIG. 5 (A), a concrete liquid (NORO) is obtained by a phase-break connection between the contact surface dy on the heat insulating layer 2E side and the contact surface dy 'on the exterior base material 2A side. ) Can be prevented from leaking to the panel 1 surface side.
And although the composite panel 1 itself is also layered in a state where the exterior base material 2A side is in contact with the reflective layer 2C on the surface of the heat insulation layer 2E side, the nail Na extends from the surface of the exterior base material 2A to the vertical beam 2B, Since it penetrates the reflective layer 2C and is driven into the ventilator edge 2D, it becomes a strong integrated layered body.

Further, as shown in FIG. 5, the outer wall structure of the present invention is an outer wall structure of a reinforced concrete outer heat insulating building in which the breathable heat insulating composite panel 1 of the invention of claim 1 is constructed as a concrete scraping frame, and has the lowest end. The outer first ventilation layer G1 and the inner second ventilation layer G2 are communicated with the outside for each of the lower end of the panel 1, the uppermost panel upper end, and the horizontal joint interval dx of the upper and lower connecting portions of the composite panel 1 on each floor. It is constructed in a form.
In this case, the lower end of the lowermost panel 1 and the upper end of the uppermost panel are drained for a conventional outer heat insulating ventilation outer wall (Patent No. 3666499 owned by the applicant of the present application), and a conventional headboard ( It is only necessary to arrange the outer joint material 2A between the upper and lower panels 1, and the lateral joint distance dx may be set as required. On the lower side, it is only necessary to provide rain protection means such as sheet metal on the upper surface of the exterior base material 2 </ b> A and the exterior material 4.
Moreover, what is necessary is just to stick the usual exterior finishing material 4 on the surface of exterior base material 2A.

Accordingly, in the outer wall structure of the present invention, the outer joint surface dx between the outer wall panels 1 of each floor is opened, and the first ventilation layer G1 on the inner surface of the exterior base material 2A is communicated with the outside. And the inner surface of the exterior base material 2A have a wind pressure action of equal pressure or approximately equal pressure even in a strong wind, and deformation and peeling of the exterior material (exterior base material + exterior finish material) can be prevented even in a typhoon.
In addition, in the horizontal joint interval dx between the panels on each floor, the first ventilation layer G1 and the second ventilation layer G2 are in the external communication form, so there is no horizontal joint sealing as in the past, and the durability of 10 years has been conventionally achieved. No need to maintain horizontal joints (maintenance free).

The first ventilation layer (outer ventilation layer) G1 between the inner surface of the exterior base material 2A and the reflective layer 2C is an exterior material (exterior base material 2A + exterior finishing material) that is heated by solar radiation by the draft rising air flow a. 4) is cooled to suppress overheating damage of the exterior material, and the reflective layer 2C is capable of preventing convective heat transfer to the inside of the panel (the heat insulating layer 2E side) and preventing convection heat transfer in the first ventilation layer G1. The heat insulation layer 2E of the panel 1 is thermally protected by conduction heat prevention, and moisture (water vapor) that permeates the heat insulation layer 2E from the concrete housing side in the second ventilation layer G2 between the reflective layer 2C and the heat insulation layer 2E. ) Is removed outward by the draft rising air flow a, and the generation of mold and mites inside the building is suppressed to maintain a good living environment, and the heat insulation function deterioration due to moisture absorption of the heat insulating layer 2E is also suppressed.
Therefore, the present invention provides a high-quality outer heat insulating outer wall excellent in durability and heat insulating properties.

  In the outer wall structure of the present invention, as shown in FIG. 2 (A), the upper end 2t of the uppermost composite panel 1 is flush with the exterior base material 2A and the heat insulating layer 2E, and the heat insulating layer. A notch C9 is arranged in the latter half of the thickness direction of 2E, and as shown in FIG. 6 (A), the headboard 8 is latched and held at the front end by the bracket 9 fixed to the exterior base material 2A and the upper end of the ventilator rim. At the same time, it is preferable that the rear end is fixed to the concrete parapet PP that has entered the notch C9 of the heat insulating layer 2E with the screw B8.

In this case, Kasagi 8 adopts Japanese Patent No. 3664697 owned by the present applicant.
That is, as shown in FIG. 7A, the headboard 8 includes a top horizontal plate 8T, a lower horizontal plate 8D, and a falling plate 8F, and an engagement groove 8G on the front end lower surface of the top horizontal plate 8T. As shown in FIG. 7B, it is used in combination with a bracket 9 comprising an upper horizontal piece 9T, a falling piece 9P, and a lower horizontal piece 9D. As shown in FIG. It is placed on the front upper end of the panel 1 and fixed to the upper surface of the exterior base material 2A and the upper surface of the ventilation trunk edge 2D with screws B9, and the front end engaging groove 8G of the headboard 8 is engaged with the bracket upper horizontal piece 9T. The rear end of the lower horizontal plate 8D may be fixed to the concrete parapet PP with a screw B8.

Accordingly, the headboard 8 can hold the panel upper end 2t surface and the ventilation space by the falling piece 9P of the bracket 9, and between the first ventilation layer G1 formed between the vertical rails 2B and the ventilation trunk edges 2D. The formed second ventilation layer G2 communicates outwardly through a space secured by the bracket 9 on the upper end 2t of the panel, and the headboard 8 itself is firmly connected to the engagement groove 8G at the front end and the screw B8 at the rear end. Thus, the external communication structure of the first ventilation layer G1 and the second ventilation layer G2 at the upper end of the outer wall can withstand strong winds.
Since the screw B8 can be driven into the concrete on the notch C9 of the heat insulation layer, the width of the lower horizontal plate 8D of the headboard 8 can be shortened.

  In the outer wall structure of the present invention, the horizontal joint distance dx between the upper and lower connecting portions of each composite panel 1 includes a rising plate 10P having an air hole H10 and a screw hole H10 ′, and an inclined top plate 10S. 6A, the rising plate 10P is fixed to the vertical beam 2B of the composite panel 1, and the exterior base material 2A and the exterior material of the composite panel 1 are inclined by the inclined top plate 10S. 4, and the first and second ventilation layers G1 and G2 are preferably communicated outward from the air holes H10.

  In this case, as shown in FIG. 4 (B), if the exterior base material 2A and the reflective layer 2C are absent at the horizontal joint interval dx and the vertical rail 2B is exposed, the horizontal joint bracket 10 is provided with the rising plate 10P. Abutting on the outer surface of the vertical beam 2B, it can be fixed to the vertical beam 2B with the screw B10 through the screw hole H10 ', and the inclined top plate 10S protects the exposed upper end of the exterior material (exterior base material 2A + exterior finish material 4). Therefore, the horizontal joint metal fitting 10 may be a long metal fitting having a cross-sectional angle shape that fits within the horizontal joint gap dx. Typically, as shown in FIG. 6A, the vertical opening dimension d2 of the horizontal joint gap dx is shown. 7C, as shown in FIG. 7C, the height h10P of the rising plate 10P is 15 mm, the width WS of the inclined top plate 10S is 26 mm, and the air hole H10 has a width of 10 mm. The laterally long hole with a length of 50mm is the spacing between the screw holes H10 '. Standard: 15mm) while maintaining the one in which scattered.

Accordingly, if the horizontal joint bracket 10 is fitted into the horizontal joint interval dx, and the rising plate 10P is fixed to the vertical beam 2B of the interval arrangement by the screw B10 via the screw hole H10 ′, each of the rising plates 10P is scattered. The air hole H10 group communicates with the first ventilation layer G1 and the second ventilation layer G2 between the vertical bars 2B, and each panel 1 has a gap (first ventilation layer G1) on the back surface of the exterior material by the horizontal joint distance dx. ) And the second ventilation layer G2 communicate with the outside air.
Therefore, the outer wall structure exhibits the effect of suppressing overheating damage of the exterior material due to the cooling action in the first ventilation layer G1, and the action of releasing water vapor from the heat insulation layer 2E side by the second ventilation layer G2, and in the strong wind, The surface side and the back side have a substantially equal wind pressure action, and damage such as deformation and peeling of the exterior material (exterior base material 2A + exterior finishing material 4) due to the strong wind action can be suppressed.
And the crown protection of the upper end of the exterior material at the horizontal joint metal fitting 10 can suppress the deterioration of rain water on the outer wall, and the horizontal joint metal fitting 10 provides a design effect with a novel functional beauty on the outer wall.

Further, in the outer wall structure of the present invention, the lowermost composite panel 1 has the lower end of the exterior base material 2A above the composite panel lower end 2d while maintaining the fixing space Sa, as shown in FIG. As shown in FIG. 7 (D), a drainer including a rising plate 7P having an air hole H7 and a screw hole H7 ', an inclined top plate 7S, a falling plate 7F, and a bottom plate 7D having an air hole Hd. It is preferable to fix the 7 rising plates 7P from the fixing space Sa to the vertical beam 2B.
In this case, the fixing space Sa at the lower end of the lowermost panel 1 is for exposing the vertical rail 2B to secure the fixing part of the drainer 7 and for communicating the first ventilation layer G1 with the outside. The height dimension d2 may be determined in accordance with the dimension of the rising plate 7P of the drainer 7. Typically, the height h7p of the rising plate 7P of the drainer 7 is 15 mm, and the height d2 of the fixed space Sa is 20 mm. is there.

Further, as shown in FIG. 7D, the drainer 7 includes a rising plate 7P having a horizontally long air hole H7 and a screw hole H7 ', an inclined top plate 7S, a falling plate 7F, and a horizontally long air hole. What is necessary is just to use the thing which includes the bottom plate 7D provided with Hd, that is, the draining of Japanese Patent No. 3664699 owned by the present applicant, with the air holes H7 and Hd appropriately arranged.
Therefore, in the outer wall structure of the present invention, as shown in FIG. 6A, the drainer 7 is disposed at the lower end of the lowermost panel, the rising plate 7P is screwed to the panel vertical rail 2B, and the bottom plate 7D is In the same manner as the fixing of draining in Japanese Patent No. 3664699, the falling piece 7A is arranged on the front surface of the basic heat insulating layer 6A via the packing 7K, and the mortar 6B on the front surface of the basic heat insulating layer 6A is disposed in front of the falling piece 7A. Between the upper end of the bottom plate 7D and the bottom surface of the bottom plate 7D, the sealing 11A can be filled through the backer 11B. The first vent layer G1 on the outer wall can be drafted from the air holes H7 of the rising plate 7P and the air holes Hd of the bottom plate 7D. The flow a can be introduced, and the air flow a can be introduced from the air hole Hd of the bottom plate 7D into the second ventilation layer G2.

  Therefore, in the outer wall structure, the first vent layer G1 and the second vent layer G2 are also in the external communication form in the portion of the drainage 7 at the lowermost end, similarly to the portion of the horizontal joint interval dx in the middle of the outer wall. Although it has the original drainage function, it suppresses deformation, peeling, and falling of the exterior material (exterior base material 2A + exterior finish material 4) during strong winds, suppresses overheating damage caused by solar radiation on the outer wall, and heat insulating layer 2E It guarantees moisture release from the side.

In the outer wall structure of the present invention, the upper and lower ends of the reflective layer 2C of each composite panel 1 from the uppermost composite panel 1 to the lowermost composite panel 1 are fixed to the heat insulating layer 2E between the ventilator edges 2D. As shown in FIG. 2, the ventilation backer 2F at the lower end of each composite panel 1 is bonded to the ventilation backer 2F and protrudes downward by a small dimension dε from the lower end 2d of the composite panel. It is preferable to carry out the phase missing connection by the vertical contact of the heat insulating layer 2E.
In this case, as shown in FIG. 4B, the upper and lower phase chip connection between the heat insulation layers 2E may be fitted to the notch C2 in the lower half of the upper end of the lower panel.

Therefore, even if a conventional double-sided aluminum foil film is used as the reflective layer 2C, the upper and lower ends are secured by the ventilation backer 2F. Therefore, the aluminum foil film that partitions the first ventilation layer G1 and the second ventilation layer G2 is used. , Deformation due to wind can be suppressed.
Since the lower end of the lower end ventilation backer 2F protrudes by a small dimension dε (standard: 3 mm) from the panel lower surface 2d, as shown in FIG. 4 (B), the upper and lower thermal insulation layers 2E are vertically contacted. The contact surface is protected, and even when rainwater enters the open part (horizontal joint interval dx) at the lower end of each outer wall panel 1, rainwater is prevented from entering the heat insulating layer contact part at the lower end of the panel heat insulating layer 2E. I can do it.

  The breathable heat insulating composite panel 1 for an outer wall of the present invention includes the first ventilation layer G1 on the back surface side of the exterior base material 2A and the second ventilation layer G2 on the surface side of the heat insulation layer 2E. Then, the first ventilation layer G1 ventilates and cools the exterior base material 2A that is heated by solar radiation to suppress damage due to the high temperature of the outer wall, and the second ventilation layer G2 is configured to prevent water vapor (humidity) from the heat insulating layer 2E. ) To suppress the heat insulation function deterioration due to moisture absorption of the heat insulating layer 2E, and also suppress the generation of mold and mites by moisture release from the concrete outer wall.

And since the 1st ventilation layer G1 and the 2nd ventilation layer G2 are partitioned off by reflective layer 2C, the heat in the 1st ventilation layer G1 is excluded outside with draft rise air flow a by radiation heat reflection, Heat transfer from the exterior base material 2A side to the heat insulating layer 2E side is suppressed by convection, radiation, and conduction surfaces.
Therefore, heating / storage of solar heat from the outer wall surface to the heat insulating layer 2E can be suppressed, and an energy saving outer wall is provided.

  In addition, since the exterior base material 2A includes the first ventilation layer G1 and the second ventilation layer G2 for circulating outside air on the back surface, the first ventilation layer G1 and the second ventilation layer G2 of each panel 1 when the outer wall is constructed. By stretching the panel 1 in a form that guarantees the introduction and discharge of outside air, the outer surface of the outer wall (exterior base material 2A + exterior finishing material 4) and the inner surface of the external base material 2A are equal pressure or even in strong winds. Since the wind pressure action is approximately equal to the pressure, and the wind pressure action on the outer wall can be greatly reduced, it is possible to construct an outer wall that can be expected to prevent deformation of the outer wall (exterior material) and prevent peeling.

Further, in the outer wall structure of the present invention, the horizontal joint distance dx in the outer wall panel 1 of each floor is opened, and the first ventilation layer G1 and the second ventilation layer G2 of each panel 1 communicate with the outside at the upper and lower ends. As a result, the outer wall surface and the inner surface of the exterior base material 2A have a wind pressure action that is equal to or equal to the isobaric pressure even in strong winds. For example, the deformation of the exterior material (the exterior base material 2A + the exterior finish material 4) Peeling can be prevented.
In addition, since the horizontal joint interval dx is in the open configuration, sealing is not required and the horizontal joint interval dx is maintenance-free.

Accordingly, the first ventilation layer G1 cools overheating of the exterior material (exterior base material 2A + exterior finishing material 4) due to solar radiation and suppresses heat transfer to the heat insulating layer 2E. Water vapor (humidity) is released through the path of the wall W → the heat insulating layer 2E, and an excellent outer heat insulating function is exhibited and a wind pressure resistant outer wall is obtained.
Therefore, the outer wall is a high-quality outer heat insulating outer wall that exhibits excellent durability and excellent outer heat insulating function.

[Composite panel 1 (FIGS. 1 and 2)]
As the composite panel 1, a panel for the top floor, a panel for the middle floor, and a panel for the bottom floor are prepared. The panel for the top floor 1 and the panel for the middle floor 1 are for the bottom floor. The panel 1 is also the same in the material used and the cross-sectional structure, and the shapes of the panel upper end and the panel lower end are only slightly different.
1A and 1B are explanatory views of a middle floor panel, in which FIG. 1A is a partially cutaway perspective view, FIG. 2B is a panel cross-sectional view, and FIG. FIG. 2B is a partially cutaway longitudinal sectional view of the middle floor panel 1, and FIG. 2C is a partially cutaway longitudinal sectional view of the lowermost floor panel 1.

  As is apparent from FIG. 1B of the explanatory diagram of the middle-floor composite panel 1 in FIG. 1, each floor composite panel 1 has an exterior base material 2A having the same width (910 mm) and a heat insulating layer 2E. Between the reflective layer 2C and the exterior base material 2A back surface, between the reflective layer 2C and the exterior base material 2A back surface, the first ventilation layer G1 is provided by the vertical rail 2B, and between the reflective layer 2C and the heat insulating layer 2E surface, The second ventilation layer G2 is secured by the ventilation trunk edge 2D, and the heat insulating layer 2E and the exterior base material 2A are shifted left and right by d1 (10 mm), so that the panels 1 are integrated so that the left and right phases can be connected to each other. Is.

  As for the overall shape of each panel, as shown in FIG. 2A, the exterior base material 2A and the heat insulating layer 2E have the same height, and the lower end of the heat insulating layer 2E has a height d2 (20 mm). The notch C2 having a height d9 (50 mm) at the upper end is arranged in the rear half of the heat insulating layer 2E in the thickness direction, that is, the width T7 (1/2 heat insulating layer thickness). As shown in FIG. 2 (B), the floor panel 1 has a heat insulation layer 2E having a notch C2 having a height d2 (20 mm) at the upper half T7 (1/2 T6) in the thickness direction at the upper end and a lower end at the lower end. The rear half T7 (1/2 T6) in the thickness direction is provided with a notch C2 having a height d2 (20 mm). At the lower end 2d of the panel, the exterior base material 2A and the heat insulating layer 2E are flush with each other, and the upper end 2t Then, the upper end of the exterior base material 2A is set at a position lower than the notch C2 of the heat insulating layer 2E by a height d2 (20 mm), and is used for the lowermost floor. 2C, as shown in FIG. 2C, the heat insulating layer 2E has a notch C2 having a height d2 (20 mm) in the front half in the thickness direction at the upper end and a height in the rear half in the thickness direction at the lower end. d2 (20 mm) notch C2 is provided, and the exterior base material 2A is located at a lower position d2 (20 mm) than the notch C2 at the upper end with respect to the heat insulating layer 2E, and is flush with the notch C2 surface at the lower end. That is, the fixed space Sa is secured as d2 (20 mm) from the lower end surface 2d.

[Production of panels (Figs. 1 and 3)]
FIG. 3 is an exploded perspective view of the middle floor panel 1, and the production of the middle floor panel 1 shown in FIG. 2B will be described.
As shown in FIG. 1 (B), the panel 1 is composed of an exterior base material 2A and a longitudinal beam 2B on the exterior base material 2A side, an adhesive integrated piece, a heat insulating layer 2E, a ventilation trunk edge 2D, and a reflective layer 2C. The heat insulating layer side adhesive integrated piece is manufactured by layering and integrating.
As the exterior base material 2A, a calcium oxalate cement board made of cement and fly ash as main raw materials, blended with fibers and having a thickness T2 of 14 mm, a width AW of 910 mm, and a length Ah of 2680 mm is prepared. To do.
The cement board has a weight of 15.6 kg / m ² and a strength (bending strength) of 123 kgf / cm ² .

Further, as the vertical beam 2B, five plate materials cut out from the exterior base material 2A and having a width (a1) of 50 mm, a thickness (T3) of 14 mm, and a length Bh of 2700 mm are prepared.
Then, as shown in FIG. 1B, each vertical beam 2B is on one surface (back surface) of the exterior base material 2A, and the vertical beams 2B on both ends are flush with the side end surface of the exterior base material 2A, and both vertical beams 2B. And the next vertical beam 2B are bonded and integrated at an interval a3 (152.5 mm) and between the central vertical beam and both vertical beams at an interval a2 (177.5 mm).
In this case, the projecting dimension 14 mm from the back surface of the exterior base material 2A of each vertical beam 2B is the depth (14 mm) of the first ventilation layer G1, and the interval between the vertical beams 2B is that of each first ventilation layer G1 group. The widths are a2 and a3.

Further, as the heat insulating layer 2E, an extruded polystyrene foam plate having a thickness T6 of 75 mm, a width EW of 910 mm, and a length Eh of 2720 mm is prepared, and the upper end has a thickness of 1/2 (T7) and a height d2 ( A notch C2 of 20 mm) is cut to the front side, and a notch C2 of 1/2 thickness (T7) and height d2 is cut to the rear side at the lower end.
As the ventilator edge 2D, five plate materials having a thickness Td of 20 mm and a width a1 of 50 mm of high density expanded polystyrene synthetic wood made of wood powder and polystyrene resin are prepared.
In addition, as the reflective layer 2C, a 0.022 mm thick (T4) aluminum foil film 2C having an aluminum foil layered on both sides is prepared with a width CW of 910 mm and a length Ch of 2683 mm.

Then, as shown in FIG. 4A, a fixing cutout EC having a width a1 (50 mm) and a depth 5 mm (d4) is formed on one surface (back surface) of the heat insulating layer 2E, and a urethane resin adhesive is used. Each ventilator edge 2D is fitted and bonded to the fixing cutout EC.
In this case, as shown in FIG. 1 (B), the ventilation cylinder edges 2D are arranged such that the ventilation cylinder edges 2D at both ends are flush with the heat insulating layer 2E and the side end surfaces are flush with each other, and the second one on the left side is an interval a5 (162. 5mm), the second on the right side is the interval a4 (142.5mm), and the center and both sides are the interval a2 (177.5mm). 2D is made to protrude from the surface of the heat insulating layer 2E to a depth of 15 mm (T5) of the second ventilation layer G2.

Further, as shown in FIG. 2 (D), a ventilation backer 2F having a height Fh of 20 mm and a width Ft of 15 mm, as shown in FIG. Cut by a5 (162.5mm), a2 (177.5mm), a2 (177.5mm), and a4 (142.5mm) at the size of the ventilator rim interval, as shown in Fig. 2 (B). Adhesive and fixed to the front surface of the layer 2E.
As shown in FIG. 2B, the lower end ventilation backer 2F has a lower end edge protruding from the lower surface of the heat insulating layer 2E, that is, the panel lower surface 2d, by a small dimension dε (standard: 3 mm), and the upper end ventilation backer 2F is Then, it is bonded to a position 20 mm (d2) below the upper end of the front surface of the heat insulating layer 2E.

Then, the aluminum foil film 2C is bonded on the ventilation trunk edge 2D on both sides and on the ventilation backer 2F on the upper and lower ends.
Next, the exterior base material 2A side is adhered to the aluminum foil film 2C on the heat insulation layer 2E side through the vertical rail 2B while being shifted by d1 (10 mm) in the width direction as shown in FIG. The nail Na is driven from the surface side of the base material 2A through the vertical rail 2B and into the ventilation trunk edge 2D to form the integrated panel 1.
In the obtained panel 1, as shown in FIG. 1 (B), each vertical rail 2B and each ventilator edge 2D are shifted from each other by a phase gap step d1 (10 mm). The crosspiece 2B and the ventilation trunk edge 2D are overlapped.

  The uppermost composite panel 1 shown in FIG. 2 (A) and the lowermost composite panel 1 shown in FIG. 2 (C) are in the form of upper and lower ends with respect to the middle floor panel 1 shown in FIG. 2 (B). However, as shown in FIG. 2 (A), the exterior base material 2A, the vertical rail 2B, and the ventilation drum edge are used as necessary dimensions before assembling the members to be used. 2D and the heat insulation layer 2E are made the same height, and the heat insulation layer 2E is formed with a notch C9 of 50 mm at the upper end and a notch C2 of 20 mm at the lower end for the latter half in the width direction. As shown in FIG. 2C, the heat insulating layer 2E has a notch C2 having a height d2 (20 mm) in the front half in the width direction at the upper end and a height d2 (20 mm) in the rear half in the width direction at the lower end. The notch C2 is disposed, the vertical rail 2B and the ventilator edge 2D are the same height as the front surface of the heat insulating layer 2E, and the exterior base material 2A is in front of the heat insulating layer 2E. Hand, prepared as the height d2 (20 mm) part length to the upper and lower ends may be bonded and integrated for medium floor panel 1 similarly.

Further, both the lower end ventilation backers 2F are arranged such that the lower end edge protrudes from the lower end of the front surface of the heat insulating layer 2E, that is, the panel lower surface 2d, by a small dimension dε (3 mm).
In each composite panel 1, as shown in FIG. 1A, when the separator insertion holes hs are arranged at equal intervals in the horizontal direction when each panel 1 is disposed as a mold, The overlapped portion of the ventilator edge 2D is drilled, and the bolt insertion holes hb for the fall prevention anchor 3B are drilled so as to be evenly distributed on the panel surface.

  In this case, the separator insertion hole hs is arranged at the position of 227.5 mm from the both sides of the exterior base material 2A at the center of the vertical beam 2B and the ventilation trunk edge 2D, and the bolt insertion hole for the fall prevention anchor 3B. As shown in FIG. 1A, hb is the vertical beam 2B and the ventilator edge 2D position of 25 mm from both sides of the heat insulating layer 2E, and the vertical beam 2B and the ventilator edge 2D position in the center in the width direction of the heat insulating layer 2E. These are arranged in a zigzag pattern at equal intervals so that they can be held uniformly as an outer mold frame and can be held firmly and fixed to the outer wall of the cast concrete.

[Drainer 7 (FIG. 7D)]
As shown in FIG. 6 (A), the drainer 7 is disposed as a parting at the lower end of the outer wall, and the rising airflow to the outer ventilation layer (first ventilation layer) G1 and the inner ventilation layer (second ventilation layer) G2 group. As shown in FIG. 7 (D), the cross-sectional shape of the bottom plate 7D has a width W7 of 50 mm and a trailing piece 7A having a height of 7 mm at the rear end, and the bottom plate 7D. The front end, the lower end of which is a 3 mm draining falling piece 7C, has a height h7 (20 mm) falling plate 7F, and the width W7 ′ rising from the upper end of the falling plate 7F to the rear with a gradient height of 3 mm is 24 mm. This is an aluminum extrusion long metal fitting with a wall thickness of 1.5 mm, comprising an inclined top plate 7S and a rising plate 7P that stands upright at a height of 15 mm (h7p) from the rear end of the inclined top plate 7S.

  The rising plate 7P is pierced with a group of horizontally long air holes H7 having a width of 10 mm and a length of 50 mm at intervals of 15 mm, and a screw insertion hole H7 'having a diameter of 4 mm is pierced between the air holes H7. Further, a horizontally long air hole Hd group having a width of 20 mm and a length of 50 mm is also drilled at a distance of 15 mm in the bottom plate 7D, and the rising plate 7P is exposed at the lower end of the lowermost panel 1 as shown in FIG. If it abuts on the vertical beam 2B and is fixed with the screw B7, the first ventilation layer G1 of the outer wall composite panel 1 has the air holes H7 of the rising plate 7P and the air holes Hd of the bottom plate 7D, and the second ventilation layer G2. The ascending air flow a flows in from the air hole Hd of the bottom plate 7D.

[Horizontal joint fitting 10 (FIG. 7C)]
The horizontal joint metal fitting 10 is a new metal fitting that is necessary for the present invention to provide an open horizontal joint between the upper and lower panels of the outer wall structure. As shown in FIG. 7C, the cross-sectional shape is 3 mm at the tip. Inclined top plate 7S having a width WS of 26 mm and a slope height of 2 mm, and a rising plate 10P having a height h10p of 15 mm from the rear end of the slope top plate 7S. This is a long metal fitting made of extruded aluminum having a thickness of 1.5 mm, and a horizontal air hole H10 group having a width of 10 mm and a length of 50 mm is drilled on the rising plate 10P at intervals of 15 mm. A screw insertion hole H10 ′ having a diameter of 4 mm is drilled in the central part.

[Kasagi 8 (Fig. 7 (A), (B))]
As shown in FIG. 6 (A), the headboard 8 is disposed at the upper end of the outer wall using a bracket 9 and is disposed as a parting off of the upper end of the outer wall, suppressing the front end of the waterproof layer 5A, and the first ventilation of the uppermost panel 1. In addition to preventing rainwater from entering the layer G1 and the second ventilation layer G2, the discharge of the rising air flow a is ensured. The cross section of the headboard 8 has a width as shown in FIG. W8 is 150 mm, the height h8 of the falling plate 8F at the front end is 45 mm, the width W8 ′ of the top horizontal plate 8T extending backward from the top of the falling plate is 65 mm, and the inclination angle from the rear end of the top horizontal plate 8T An aluminum extrusion molding length of 1.5 mm, consisting of an inclined side 8P with a height of 12 mm (d8) descending downward at 45 ° and a lower horizontal plate 8D with a width of 73 mm extending backward from the inclined side 8P. It is a measuring bracket.

Then, as shown in FIG. 7A, from the lower end of the falling plate 8F, a slant piece 8S having a draining function with a width of 7 mm and inclined at 45 ° obliquely forward and downward, and a horizontal projection of 5 mm width rearward. A protruding piece 8C ′ having a draining function for rising rainwater and a function for reinforcing the falling plate 8F is drilled, and a 2.5 mm engagement groove is formed from the lower surface of the top horizontal plate 8T at the upper end of the falling plate 7F. The upper protruding piece 8C having a width of 5 mm for forming 8G is formed in a protruding manner.
Further, the bracket 9 is an aluminum extruded product having a thickness of 2 mm attached to the headboard 8 as shown in FIG. 6 (A), and as shown in FIG. 7 (B), the upper horizontal piece having a width W9 'of 23 mm. And a lower horizontal piece having a height h9 of 22 mm and a lower horizontal piece having a width W9 of 42 mm and a length L9 of 50 mm, and a screw hole H9 having a diameter of 4 mm is drilled in the lower horizontal piece. It is a thing.

[Construction of outer wall (FIGS. 5 and 6)]
FIG. 5A is a transverse sectional view of the outer wall structure, and FIG. 5B is a longitudinal sectional view of the outer wall structure.
FIG. 6A is an enlarged view of FIG. 5B.
For the construction of the outer wall, the composite panel 1 of the present invention is used in a conventional manner by using conventional members such as the fall prevention anchor 3B, the separator 20A, and the heat insulation cone 20B by the separator insertion hole hs and the bolt insertion hole hb. Molding is performed as a mold on the outside of the concrete outer wall, and concrete is placed in the outer wall concrete mold to obtain an outer wall integrated with the outer wall panel 1 on the outer side of the concrete outer wall.

As shown in FIG. 6 (A), the foundation heat insulating layer 6A is joined to the heat insulating layer 2E of the lowest floor panel 1 to form a concrete mold even when the concrete foundation beam FB is formed.
In this case, the composite panel 1 for the outer wall is lighter by about half than the breathable heat insulating composite panel for the outer wall of the conventional example 1 (FIG. 8). Easy handling and good workability.
After the cast concrete is solidified, the inner formwork and the foundation beam FB outer formwork are disassembled, and a mortar 6B layer is applied and formed on the surface of the foundation heat insulating layer 6A.

  In addition, in the case of a concrete type frame, each outer wall panel 1 has a side surface of the heat insulating layer 2E that is flush with the ventilator edge 2D, so that the left and right connections between the panels 1 can be performed while suppressing the loss of the heat insulating layer 2E. As shown in FIG. 5 (A), the left and right connections between the panels are a stepped connection between the contact surface dy of the heat insulating layer 2E and the contact surface dy 'of the exterior base material 2A, and the panels 1 are connected to each other vertically. As shown in FIG. 5 (B), since the heat insulating layers 2E are connected to each other by a step C2 due to the notch C2, leakage of the concrete liquid (noro) of the pouring concrete from the outer wall panel 1 to the surface can be suppressed. Therefore, the panel surface can be easily cleaned after the concrete formwork is dismantled.

Next, a desired exterior finishing material 4 is stuck to the surface of the exterior base material 2A.
For the outer wall integrated with the outer wall composite panel 1, as shown in FIG. 6A, a rising plate 7P of a drainer 7 is provided at the lower end of the lowermost panel 1 and a fixed space below the exterior base material 2A. It abuts on the vertical beam 2B exposed from Sa and is fastened with a screw B7, and the drained bottom plate 7D is closed to the base beam mortar 6B by a sealing 11A via a backer 11B on the front surface of the falling piece 7A.
In this case, if necessary, the unevenness is adjusted by interposing a packing 7K between the falling piece 7A and the front surface of the basic heat insulating layer 6A.

At each horizontal joint interval dx, the horizontal joint bracket 10 is fixed by fastening the screw B10 of the rising plate 10P to the exposed vertical beam 2B.
Further, at the upper end of the uppermost panel, as shown in FIG. 6 (A), the lower horizontal piece 9D of the bracket 9 is placed on the same upper end surface of the panel, and the exterior base material 2A and the ventilator edge 2D are mounted with screws B9. The heat insulating and heat insulating paint 5C is fixed to the upper surface of the steel plate, the engaging groove 8G at the front end of the headboard 8 is engaged with the upper horizontal piece 9T of the bracket 9, and the rear end of the lower horizontal plate 8D is disposed on the parapet concrete PP. From the top of the conventional waterproof layer 5A arranged via the screw, the screw B8 is used to fasten to the concrete that has entered the notch C9 of the panel heat insulating layer 2E.

  In the obtained outer wall structure, as shown in FIG. 6 (A), the air hole Hd of the bottom plate 7D of the drainer 7 allows air to flow into the first ventilation layer G1 and the second ventilation layer G2, and the drainage 7 rises. The air hole H7 (FIG. 7) of the plate 7P allows air to flow into the first ventilation layer G1, and the first ventilation layer from the air hole H10 of the rising plate 10P of the horizontal joint metal fitting 10 at the open horizontal joint spacing dx of each floor. Air inflow to G1 and the second ventilation layer G2 is allowed, and at the upper end of the top floor panel 1, the first ventilation layer G1 and the second ventilation layer G2 to the outside of the ascending air flow a between the brackets 9 arranged at intervals. In order to permit the discharge of air, the outside air can flow to the first ventilation layer G1 and the second ventilation layer G2 for each panel 1 with respect to the outer wall.

For this reason, the outer wall structure is subjected to an isostatic wind pressure action on the surface of the exterior material (exterior base material 2A + exterior finishing material 4) and the inner surface of the exterior material (first ventilation layer G1) even in a strong wind. Will not cause deformation or peeling accidents even in strong winds or typhoons.
And since the upper and lower ends of the reflective layer 2C of the aluminum foil film are fixed by the ventilation backers 2F, they can withstand strong winds.
Moreover, since the lower end edge of the lower ventilation backer 2F occupies a position below (3 mm below) the upper and lower contact surfaces of the heat insulation layer 2E, the rainwater enters the heat insulation layer 2E contact surface and the concrete floor slab surface Sf. Can also be prevented.

[Others]
When an opening such as a window is arranged on the outer wall, the composite panel 1 on the lower side of the window frame and the composite panel on the upper side of the window frame as shown in FIG. 1. By cutting the vertical beam 2B group and the ventilation trunk edge 2D group in the horizontal direction and forming a notch in the transverse ventilation path G3 that connects the ventilation layers G1 and G2 to each other, The first ventilation layer G1 group and the second ventilation layer G2 group can be ventilated from the composite panel to the composite panel 1 on the upper side of the window via the transverse ventilation path G3, and workability is poor as in a conventional window frame. In addition, it is not necessary to install a drainer or rain drainer with ventilation function.

  Further, as the external communication structure of the first ventilation layer G1 and the second ventilation layer G2 at the lower end of the lowest floor panel 1 on the outer wall, as shown in FIG. 7 is adopted, but as shown in FIG. 6 (B), the lower end surface of the bottom floor panel is formed so that the heat insulating layer 2E and the exterior base material 2A are flush with each other, and the mortar on the front surface of the basic heat insulating layer 6A. By arranging an inlet space Sd for air inflow between the upper end of the 6B layer and the lower end of the second ventilation layer G2, that is, the lower end ventilation backer 2F, the first ventilation layer G1 is formed at the lower end of the lowermost panel 1. In addition, it is possible to allow the draft air flow a to flow into the second ventilation layer G2.

It is explanatory drawing of this invention panel, Comprising: (A) is a partially cutaway perspective view, (B) is a cross-sectional view. It is explanatory drawing of this invention panel, Comprising: (A) is a partially cutaway longitudinal cross-sectional view of the panel for top floors, (B) is a partially cutaway longitudinal cross-sectional view of the panel for middle floors, (C) is for bottom floors The panel is a partially cutaway longitudinal sectional view, and (D) is a partially cutaway perspective view of the lower end of the panel. It is a disassembled perspective view of this invention panel, (A) is exterior base material 2A, (B) is a vertical beam 2B, (C) is a reflective layer 2C, (D) is a ventilation trunk edge, (E () Is a figure which shows the ventilation | gas_flowing backer 2F, (F) is a figure which shows the heat insulation layer 2E. It is a partial explanatory view of the present invention, in which (A) is an adhesive state between a heat insulating layer and a ventilator edge, (B) is an upper and lower joint portion of a panel, (C) is a ventilated backer, and (D) is an opening. It is a figure which shows the ventilation structure around a window. It is explanatory drawing of the outer wall structure of this invention, Comprising: (A) is a cross-sectional view, (B) is a longitudinal cross-sectional view. It is explanatory drawing of the outer wall structure of this invention, Comprising: (A) is an enlarged view of FIG.5 (B), (B) is a modified example figure of an outer wall lower end part. It is explanatory drawing of the metal fittings used for this invention, Comprising: (A) is a coping perspective view, (B) is a bracket perspective view, (C) is a horizontal joint metal perspective view, (D) is a draining perspective view. It is explanatory drawing of the prior art example 1, Comprising: (A) is a cross-sectional view of a breathable heat insulation composite panel, (B) is a modified example figure of (A). It is explanatory drawing of the prior art example 2, Comprising: (A) is a perspective view of a panel, (B) is a perspective view of a communicating opening part.

Explanation of symbols

1 Composite panel (outer wall panel, panel)
2A Exterior base material 2B Vertical rail 2C Reflective layer (aluminum foil film)
2D Venting trunk edge 2d Panel lower end surface (lower end surface)
2E Heat insulation layer 2F Ventilation backer (backer)
2L left end (side end)
2R right end (side end)
2S layer landing surface 2t Panel upper end surface (upper end surface)
3A Bolt 3B Fall prevention anchor 4 Exterior finishing material (exterior material)
5A Waterproof layer 5B Thermal insulation layer 5C Thermal insulation thermal insulation coating 6A Basic thermal insulation layer 6B Mortar 7 Drainer 7A Falling piece 7C Water slice (Falling piece for draining)
7D Bottom plate 7F Falling plate 7K Packing 7P Rising plate 7S Inclined top plate 8 Caps 8C, 8C 'Projecting piece 8D Lower horizontal plate 8F Falling plate 8G Engaging groove 8P Inclined side 8S Inclined piece 8T Top end horizontal plate 9 Bracket 9D Lower step Horizontal piece 9P Falling piece 9T Upper horizontal piece 10 Horizontal joint bracket 10C Falling piece 10P Rising plate 10S Inclined top plate 11A Sealing 11B Backer 20A Separator 20B Heat insulation cone a Ascending air flow (air flow)
B7, B8, B9, B10 Screw C2, C9 Notched CF Concrete frame dx Horizontal joint spacing dy, dy 'Abutment surface EC Notch for fixing FB Concrete foundation beam G1 First ventilation layer (outer ventilation layer, ventilation layer)
G2 Second ventilation layer (inner ventilation layer, ventilation layer)
G3 Cross ventilation passage (ventilation passage)
GL Ground H7, H10, Hd Air holes H7 ', H9, H10' Screw holes (screw insertion holes)
hb Bolt insertion hole hs Separator insertion hole Na Nail PP Parapet S Floor slab Sa Fixing space Sd Entrance space Sf Floor slab surface W Concrete wall Wi Opening (window opening)

Claims (11)

  An outer wall breathable heat insulating composite panel (1) comprising an outer first ventilation layer (G1) and an inner second ventilation layer (G2) between the exterior base material (2A) and the heat insulation layer (2E). The exterior base material (2A) is a lightweight, high-strength thin rigid plate, and the vertical rails (2B) are fixed to the inner surface at appropriate intervals, and the heat insulating layer (2E) is composed of the exterior base material (2A). A foamed plastic heat insulating plate having the same width as that of the first embodiment, wherein a ventilation drum edge (2D) is fixed to the outer surface at an appropriate interval, and the outer surface of the ventilation drum edge (2D) has a reflection layer (2C) having a radiation heat reflection function on both surfaces. ), The reflective layer (2C) on the heat insulation layer (2E) side, and the vertical beam (2B) on the exterior base material (2A) side were integrally layered in a sandwiched manner with the ventilator edge (2D). Breathable thermal insulation composite panel for exterior walls.   The heat insulating layer (2E) and the exterior base material (2A) hold the step (d1) for the left and right phase chip joining at both side edges, and the heat insulating layer (2E) is used for the upper and lower phase chip joining. The breathable heat insulating composite panel according to claim 1, comprising a notch (C2).   The breathability according to claim 1 or 2, wherein the upper end and the lower end of the reflective layer (2C) are fixed and held by a ventilation backer (2F) extended and fixed to the heat insulating layer (2E) between the ventilation trunk edges (2D). Thermal insulation composite panel.   The heat insulating layer (2E) is an extruded polystyrene foam plate having a thickness (T6) of 75 mm and a width (EW) of 910 mm, and the ventilator edge (2D) is a high density expanded polystyrene made of wood powder and polystyrene resin. A synthetic wood plate with a thickness (Td) of 20 mm and a width (a1) of 50 mm, and the ventilation trunk edge (2D) is bonded and integrated through the fixing notch (Ec) of the heat insulating layer (2E). The breathable heat insulating composite panel according to any one of claims 1 to 3. The exterior base material (2A) has the same width (AW) as the heat insulation layer (2E), a thickness (T2) of 12 to 16 mm, a weight of 10 to 18 kg / m ² , and a strength of 100 to 123 kgf / cm ^2. The breathable heat insulating composite panel according to claim 4, wherein the vertical rail (2B) is the same material and has the same thickness as the exterior base material (2A).   Both side surfaces of the heat insulating layer (2E) are flush with the ventilator edges (2D) at both ends, and both side surfaces of the exterior base material (2A) are flush with the vertical bars (2B) at both ends, The nail (Na) is driven into the vertical beam (2B) and the ventilator edge (2D) from the outer surface of 2A), and the exterior base material (2A) side is fixed to the heat insulating layer (2E) side. Breathable insulation composite panel.   The outer wall structure of a reinforced concrete external heat insulating building constructed by using the breathable heat insulating composite panel (1) of the invention of claim 1 as a concrete-casting frame, the lower end of the lowermost composite panel (1), and the uppermost composite panel The outer first ventilation layer (G1) and the inner second ventilation layer (G2) are communicated with the outside at every upper joint and the horizontal joint interval (dx) of the upper and lower connecting portions of the composite panel (1) on each floor. The outer wall structure of a reinforced concrete exterior thermal insulation building.   The upper end (2t) of the top floor composite panel (1) is flush with the exterior base material (2A) and the heat insulating layer (2E), and is notched in the latter half in the thickness direction of the heat insulating layer (2E) (C9). ), And the front edge of the headboard (8) is locked and held by the exterior base material (2A) and the bracket (9) secured to the upper end of the ventilating trunk edge, and the rear edge of the heat insulating layer (2E). The outer wall structure according to claim 7, wherein the outer wall structure is fixed to the concrete parapet (PP) entering the notch (C9) with a screw (B8).   In the horizontal joint interval (dx) between the upper and lower connecting portions of each composite panel (1), a rising plate (10P) having an air hole (H10) and a screw hole (H10 ′) and an inclined top plate (10S) are provided. The horizontal joint bracket (10) including the above is arranged, the rising plate (10P) is fixed to the vertical beam (2B) of the composite panel (1), and the exterior base material (1) of the composite panel (1) with the inclined top plate (10S) 2A) and the exterior material (4) are covered, and the first ventilation layer (G1) and the second ventilation layer (G2) are communicated outward from the air holes (H10). Exterior wall structure.   The lowermost composite panel (1) has the lower end of the exterior base material (2A) above the lower end of the composite panel (2d) with a fixing space (Sa), an air hole (H7) and a screw hole (H7 ') A rising plate (7P) of a drainer (7P) including a rising plate (7P) provided with an inclined top plate (7S), a falling plate (7F), and a bottom plate (7D) provided with air holes (Hd). ) Is fixed to the vertical beam (2B) from the fixing space (Sa), the outer wall structure according to any one of claims 7 to 9.   From the top floor composite panel (1) to the bottom floor composite panel (1), the upper and lower ends of the reflective layer (2C) of each composite panel (1) are the heat insulating layer (2E) between the ventilator edges (2D). Each composite panel is bonded to a ventilation backer (2F) fixed to the bottom, and the ventilation backer (2F) at the lower end of each composite panel (1) is protruded downward (dε) from the lower end (2d) of each composite panel. The outer wall structure according to any one of claims 7 to 10, wherein the upper and lower connections in (1) are phase-separated by the upper and lower abutting contact of each heat insulating layer (2E).

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