JP2005068791A - Air permeable outer thermal insulation exterior wall of concrete building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air permeable outer thermal insulation exterior wall of a concrete building capable of carrying out flush extension construction work of an adhesion layer type thermal insulation composite panel as an exterior wall of the concrete building irrespective of unevenness of the outside of a concrete skeleton and warranting upward through flow venting to the outside of a coping by transmitting vent inside of the thermal insulation composite panel from a hip water drip of the lower end of the exterior wall. <P>SOLUTION: An anchor bolt 7a is fixed to the front surface Sc of a concrete skeleton, vertical pieces 6W and 7W of the lower end primary fastener 6 and the intermediate primary fastener 7 of an angle steel material are fastened to the anchor bolt 7a to fix to the concrete skeleton Cw, the lower end and the upper end of a stripe groove (a) of the lower end section of the adhesion layer type thermal insulation composite panel P of a cement board Pa equipped with the stripe groove (a) for venting and a thermal insulating layer Pb are engaged with projected pieces 12a and 12b of a one-sided secondary fastener 10 and a double-sided secondary fastener 21, the secondary fasteners 10 and 21 are fastened to the primary fasteners 6 and 7 with a bolt by adjusting forward, backward and sideways positions, air circulation of an interfacial gap (as) between the panel thermal insulating layer Pb and the front surface of the concrete skeleton is prevented and, at the same time, the air circulation from the lower end to the upper end of the exterior wall of a group of stripe grooves (a) in the panel P is warranted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an outer wall of a concrete outer heat insulating building that allows outside air to pass through the outer wall heat insulating composite panel from the waist drainage at the lower end of the outer wall to the headboard at the upper end of the outer wall. Adhesive layer type heat insulation composite panel with laminated layers and a breathable layer at the interface between the layers, along with water drainage and coping, related to the outer heat insulation outer wall attached to the concrete frame, in the technical field of architecture It belongs to.

There are a conventional example 1 shown in FIG. 13 and a conventional example 2 shown in FIG. 14 as a technology for sticking an adhesion layer type heat insulating composite panel to a concrete frame to form an external heat insulating building.
Conventional Example 1 is disclosed in Non-Patent Document 1 and Non-Patent Document 2, and as shown in FIG. 13, a cement plate provided with a groove on the inner surface and provided with holes for post-construction anchors at appropriate positions. The heat-insulating layer of the adhesion layer type outer heat-insulating composite panel with the heat-insulating layer integrally attached is adhered to the concrete case with an adhesive, and the anchor is driven from the cement plate to the concrete case to be stuck.

  The lower end of the outer wall of the heat-insulating composite panel is supported by a weight-receiving angle that is driven into a concrete frame and fastened to a post-installed anchor bolt. A technology to fix concrete buildings to external insulation by fixing with construction anchors and locking the headboard to the mounting base to seal between the front of the upper end of the panel and the headboard and between the upper surface of the concrete frame and the rear end of the headboard. It is.

  Conventional Example 2 is disclosed in Non-Patent Document 3, and as shown in FIG. 14, a GFPC-based exterior material (13 mm thick double-sided glass fiber mixed volcanic gravel sand ash phenol resin plate), and a heat insulating material Adhesive layer type heat insulation composite panel (Iwakura Chemical Industry Co., Ltd., product name: Omal YB-R) is used as an exterior material, and holes for post-construction anchors are arranged at appropriate locations in the exterior material. At the same time, the adhesive on the surface of the heat insulation layer is arranged at appropriate intervals, and the insulation layer of the panel is adhered to the surface of the concrete frame with the dango adhesive, and the post-installed anchor is driven into the concrete frame from the surface of the exterior material. It is something to be stretched on.

  And as shown in FIG. 14 (D), the lower end of the outer wall of the composite panel is attached with an aluminum drainer through an angle steel drainer mounting base material attached to the concrete frame, and sealed in the front gap between the lower end of the heat insulating composite panel and the drainer. The upper end of the outer wall of the heat-insulating composite panel is attached to the exterior layer to protect the heat-insulating layer, and the waterproof layer is attached to it, and the angle headboard is fixed on the waterproof layer. Will be refurbished to external insulation.

Co., Ltd., Architectural Technology Publishing, “Architecture Technology” February 2001, page 123, Achilles KD Panel 164 pages of Mitsubishi Materials Building Materials Co., Ltd. catalog “Mace Guidebook vol.5” Iwakura Chemical Industry Co., Ltd. Brochure “Omaru YB-R” Post-installation Instructions

  In the renovation of existing buildings, the dry insulation renovation external insulation construction method of Conventional Example 1 and Conventional Example 2 is a method of attaching panels to the outer wall of the existing building with mounting hardware, and peeling or peeling off the finishing material of the existing outer wall. As is the case with newly constructed exterior thermal insulation concrete buildings, it is often used for renovation of concrete buildings where there is a risk of contamination and obsolete concrete structures with dirt and design. It can be renovated into a concrete building that is energy-saving and durable.

  However, in the 1997 edition of the Architectural Institute of Japan, “Building Construction Standard Specification, Commentary (JASS 5) Reinforced Concrete Construction” 1997 edition, the unevenness of the outer wall surface is 10 mm or less for 3 m for tiles and 10 mm for 1 m for mortar coating. In the following, the concrete is less than 7mm per 3m, but for concrete buildings 15 to 20 years after construction, due to problems such as form accuracy at the time of construction, it is about 10mm per 1m. Existence is normal.

In the dry type cover repair method of Conventional Example 1 (Fig. 13), the thermal insulation composite panel is bonded to the surface of the concrete frame on the outer wall of the existing building, so there is unevenness (surface unevenness) on the outer surface of the concrete frame. However, since it is impossible to adjust the heat-insulating composite panel in the front-rear direction with respect to the outer surface of the concrete frame, the outer wall surface of the heat-insulating composite panel also becomes uneven following the unevenness of the concrete frame.
Therefore, in order to make the outer wall surface as flat as possible, it is necessary to perform a leveling operation to beat the projecting surface of the concrete frame prior to tensioning of the heat insulating composite panel. Moreover, it is difficult to make the surface of the concrete frame uniform.

  In addition, the heat insulating composite panel was originally developed as a concrete integrated formwork, and was provided with a groove to improve adhesion to the integrated concrete. Along with the increasing interest in external heat insulation construction, a thermal insulation composite panel (trade name: Achilles KD panel) is formed by layering a heat insulating material on the cement board, and the groove is provided in the panel. Is only meaningful to reduce the weight of the cement board.

And the outer wall by the heat insulation composite panel of the prior art example 1 is that the weight receiving angle supports the lower end surface of the panel by surface contact, and seals between the headboard and the front end of the panel, and between the headboard and the parapet. As is apparent from the above, the groove group on the inner surface only has a heat insulating function as a sealed air layer, and there is no air-permeable layer in the adhesion layer type panel.
Therefore, the outer wall of the panel is inferior due to heat stress due to the high temperature of the cement board due to solar radiation, and between the heat insulating layer and the cement board, the heat insulating material due to the interface dew condensation peculiar to the adhesion layer type outer heat insulating composite panel is used. Has the problem of functional degradation.

Moreover, even in the dry-type cover repair construction method of the conventional example 2 (FIG. 14), the insulation composite panel is stuck to the surface of the concrete frame because the adhesive balls are scattered and pressed to adhere to the panel. Although the pressure deformation of the dango-like adhesive can cope with the unevenness of the concrete body surface slightly, the unevenness adjustment dimension is small, so the work of rubbing the protruding surface of the concrete body surface before the panel is stuck It is also necessary to stretch the heat-insulating composite panel with the turning work, and the workability is poor, and it is difficult to make the outer wall surface uniform.
The heat insulating composite panel is an adhesion layer type panel of a GFPC-type exterior material and a heat insulation layer, but the panel itself does not have an air-permeable layer, and there is no adhesion layer type outer space between the heat insulation layer and the exterior material. Interfacial dew condensation peculiar to a heat insulating composite panel is generated.

  The present invention is an adhesion layer type heat insulation composite panel, and becomes an outer wall capable of venting the panel, and the heat insulation composite panel is attached to the surface of the concrete frame regardless of the unevenness of the surface of the concrete frame. Provides a new outer wall structure that can be constructed with good workability and good workability. Moreover, it is an adhesion layer type heat insulating composite panel, but it penetrates the upper and lower continuous panels from the drainage of the lower end of the outer wall and penetrates the upper end of the top panel. The present invention provides an outer wall structure that allows air to be ventilated, and solves the problems of Conventional Example 1 and Conventional Example 2 at a time as described above.

  For example, as shown in FIG. 2, the present invention shows an adhesive layer type heat insulating composite panel P in which a cement plate Pa and a heat insulating layer Pb are arranged on the inner surface in parallel with the grooves a in the vertical direction, and FIG. 3. As shown in FIG. 5, a single-sided secondary fastener 10 and a double-sided fastener 10 having projecting pieces 12a on one side of each horizontal piece form as shown in FIG. Double-sided secondary fasteners 21 provided with protruding pieces 12a and 12b, and primary fasteners 6 and 7 are fixed to the front surface Sc of the concrete frame Cw, and the single-sided secondary fastener 10 is double-sided at the lower end or upper end of the outer wall. The secondary fastener 21 is an upper and lower panel connecting portion d4 on the outer wall, and is locked to the groove a of the cement plate on the end face of the heat insulating composite panel P via the protruding pieces 12a and 12b. one The horizontal pieces 6F and 7F of the fasteners 6 and 7 are fixed to the horizontal pieces 6F and 7F by adjusting the front / rear / left / right positions to prevent air flow in the interfacial gap as between the panel heat insulating layer Pb and the concrete housing front surface Sc, and the strips in the panel P The air flow Af from the lower end to the upper end of the outer wall of the groove group a is guaranteed.

In the present invention, the concrete frame Cw includes a concrete foundation to a parapet.
Moreover, in this invention, with respect to the primary fasteners 6 and 7 firmly fixed to the concrete housing Cw front surface Sc with the vertical piece, the heat insulating composite panel P is attached to the secondary fastener 10 so that the outer wall front surface is flush. , 21 is adjusted to both the front and rear positions and the left and right positions to be fixed to the primary fasteners 6 and 7, so that the maximum projecting portion of the front surface Sc of the concrete body and the heat insulating layer Pb of the panel P are brought into contact with each other. An interface gap as corresponding to the unevenness of the front surface Sc is generated between the inner surface (heat insulating layer) of each panel P and the concrete housing surface Sc.

However, as shown in FIGS. 10A and 10B, the interface gap as is also blocked by injection of the in-situ foam heat insulating material 9 between the upper and lower panel heat insulating layers Pb, as shown in FIGS. As shown in FIG. 11B, the air flow is also caused by the sealing 19 and the gap following sheet 23 at the lower end surface of the panel, or by the asphalt roof coating 9c on the upper end surface of the panel as shown in FIGS. Although the prevention is achieved, the air flow prevention of the interface gap as may be merely closing the interface gap as at the upper end or the lower end of the panel P.
Further, the fastening of the secondary fasteners 10 and 21 to the primary fasteners 6 and 7 under the front / rear left / right position adjustment is performed by sliding the secondary fasteners 10 and 21 onto the horizontal pieces of the primary fasteners 6 and 7. Therefore, it is easy to adjust the front and rear, right and left, and the fastening of the primary fastener and the secondary fastener can be performed by using conventional bolt fastening, screw fastening, welding, or the like.

Further, the upper and lower ends of the panel P of the secondary fasteners 10 and 21 are locked to the groove a, as shown in FIG. 10A, the protruding pieces 12a and 12b fitted and fitted into the groove a are attached to the outer surface of the cement plate Pa. The panel P may be secured to the secondary fasteners 10 and 21 by setting appropriate cross-sectional shapes of the groove a and the fitting protrusions 12a and 12b.
Of course, when rattling occurs between the panel P and the secondary fasteners 10 and 21 in the locked state, the cement plate Pa and the secondary fastener protruding pieces 12a and 12b may be screwed together.

Further, in the present invention, as shown in FIG. 2, the heat insulating composite panel P includes a group of vertical grooves a1 and a2 including cemented plates Pa including a trapezoidal groove a1 at least at both side ends, and a heat insulating layer Pb. However, it is preferable that the molded foam heat insulating material is laminated and integrated on the surface of each groove a1, a2.
The trapezoidal groove a1 having the trapezoidal cross section can achieve the locking of the panel P by the secondary fasteners 10, 21 only by inserting the protruding pieces 12b having the trapezoidal cross section of the secondary fasteners 10, 21.
And since the latching holding | maintenance of the panel P by the secondary fasteners 10 and 21 becomes the right-and-left both ends of a panel, the equalization adjustment operation | work of each panel P becomes easy.

  Further, in the present invention, the heat insulation layer Pb of the heat insulation composite panel P has a notch C1 having a horizontal plate thickness of the primary fastener over the entire width of the upper end and the upper inner surface as shown in FIG. It is preferable that a notch C2 for fastening a secondary fastener is further disposed on the notch C1 at both ends of the panel P.

The provision of the notches C1 and C2 is easy in uniform operation as a work in another place such as a factory, and the horizontal piece and the vertical piece of the primary fastener 7 arranged at the upper end of the panel heat insulation layer Pb are the heat insulation layer Pb. As shown in FIG. 11 (B), the repair work for the notch C1 is uniform, such as post-processing with a plate material 18 such as an asbestos-cement board for the notch C1 of the heat insulating layer Pb when the outer wall upper part is constructed, and Easy to implement.
Further, the presence of the deep partial cutout C2 allows the protrusion of the secondary fastener 10, 21 fastening bolt to be received. As shown in FIGS. 10 (A) and 11 (A), the universal nut 8 protruding on the lower surface. The primary fastener 7 provided with the heat insulating composite panel P can be arranged smoothly on the heat insulating composite panel P, the loss of the heat insulating layer Pb can be minimized, and workability can be improved.

  In the present invention, as shown in FIGS. 3A and 3B, the primary fasteners 6 and 7 have long holes H6 and H7 in the horizontal pieces 6F and 7F and bolts in the vertical pieces 6W and 7W. An angle steel material having insertion holes H60 and H70, and a bolt insertion hole H60 having a diameter larger than the diameter of the anchor bolt 7a disposed on the vertical pieces 6W and 7W with respect to the anchor bolt 7a driven into the concrete housing front surface Sc. , H70 is preferably bolted to the anchor bolt 7a under position adjustment via H70.

In this case, the anchor bolt 7a may be embedded in the concrete frame at the time of construction of the concrete frame, or a bolt hole may be drilled in the concrete frame of an existing building and the post-installed anchor bolt 7a may be driven.
Therefore, the present invention is a highly practical invention that can be applied to a new construction of a concrete building as well as an external insulation modification of an existing concrete building.

In addition, the anchor bolt 7a in the dry outer insulation method is typically a post-installed anchor bolt having a diameter of 10 mm, either an all anchor (trade name of Sanko Techno Co., Ltd.) or a nail anchor (Okabe Construction Materials Co., Ltd.). Product name), which exhibits a tensile load strength of 890 kgf per one anchor bolt 7a.
Since the bolt insertion hole H70 of the vertical piece 7W has a diameter of about 20 mm and is larger than the anchor bolt diameter of 10 mm, the function of adjusting the position of the primary fastener 7 in the vertical and horizontal directions with respect to the anchor bolt 7a can be exhibited.
In this case, since the load per panel P is less than 40 kg, bolt fastening of the vertical piece 7W to the anchor bolt 7a exhibits sufficient support strength of the secondary fastener 10.
Further, the long hole H7 of the horizontal piece 7F is effective for adjusting the position of the bolt fastening of the secondary fastener 10 on the primary fastener 7.

In the present invention, the horizontal piece 7F of the intermediate primary fastener 7 is provided with a free nut fitting 8 on the lower surface of the long hole H7 as shown in FIGS. The washer 8B, to which the nut 8A is fixed, is preferably slidable and cannot be rotated together.
In this case, the slidable nut 8A, as shown in FIG. 4, has a flat rectangular washer 8B that is restricted by the side plates 8S and restrains the rotation of the nut 8A. Since the bolts can be tightened under the position adjustment 21 and the nut 8A is held in the universal nut fitting 8, a flexible nut fitting such as a notch C2 in FIG. By providing only 8 recesses, it is possible to attach the primary fastener 7 to the upper end of the panel P neatly with a small amount of heat insulation layer loss with respect to the panel P.

In the present invention, as shown in FIG. 5A, the single-sided secondary fastener 10 projects a trapezoidal protruding piece 12a having a trapezoidal cross section on one front end surface of a horizontal piece 10F having a long hole H10, and the lower end or upper end of the outer wall. Thus, it is preferable that the protruding piece 12a of the secondary fastener 10 is locked to the groove a1 having a trapezoidal cross section of the heat insulating composite panel P.
The single-sided secondary fastener 10 latches and holds the lower end of the outer wall or the panel end face at the upper end of the outer wall. In this case, the protruding piece 12a of the secondary fastener is a cross-sectional form and a corresponding form of the cement plate groove a1. Therefore, the lower end of the panel or the upper end of the panel can be reasonably implemented by the secondary fastener 10.
And if the long hole H10 of the single-sided secondary fastener 10 is provided in an intersecting form with the long holes H6 and H7 of the primary fasteners 6 and 7, bolt fastening under the positional adjustment between both fasteners can be carried out rationally. .

Further, in the present invention, as shown in FIG. 5B, the double-sided secondary fastener 21 projects the trapezoidal protruding pieces 12a and 12b having a trapezoidal cross section on the top and bottom surfaces of the horizontal piece 21F having the long holes H21. It is preferable that the upper and lower protruding pieces 12a and 12b are engaged with the upper and lower heat insulating composite panels P in the trapezoidal cross section a1 of the upper and lower surfaces.
When the double-sided secondary fastener 21 is engaged with the lower protruding piece 12a in the cement plate groove a1 at the upper end of the lower panel and fixed to the primary fastener 7, the lower end of the upper panel is engaged with the upper protruding piece 12b. As shown in FIG. 10 (A), the upper and lower panel connecting portions d4 can hold and hold the upper and lower panels with the trapezoidal grooves a1 and the trapezoidal projecting pieces 12a and 12b.

In this case, as shown in FIG. 5B, the upper protruding piece 12b is preferably arranged so as to protrude on the joint base plate 21a arranged on the horizontal piece 21F.
If the upper protruding piece 12b exists on the base plate 21, the lower end of the cement plate Pa of the upper panel P is moved onto the base plate 21 at the lower end of the rib R (FIG. 2) as shown in FIGS. Regardless of the thickness of the secondary fastener horizontal piece 21F, the base plate 21 can secure a predetermined joint size at the connection part d4, and the predetermined injection construction of the in-situ foam insulation 9 from the connection part d4. Work becomes easy.

In the present invention, as shown in FIGS. 3 (A) and 3 (B), the primary fasteners 6 and 7 are provided with the long holes H6 and H7 in the front-rear direction in the horizontal pieces 6F and 7F, respectively. As shown in FIGS. 5A and 5B, the horizontal pieces 10F and 21F have left and right long holes H10 and H21, and the front and rear direction long holes H6 and H7 and the left and right direction long holes H10 and H21 are provided. The secondary fasteners 10 and 21 are preferably positioned on the primary fasteners 6 and 7 and fastened with bolts.
The tension of the heat insulating composite panel P to be flush with the outer surface of the heat insulating composite panel P is such that the surface of the panel heat insulating layer Pb and the surface of the concrete frame Sc are in contact with each other at the largest portion of the uneven surface of the concrete frame Sc. This is necessary in order to minimize the occurrence of the interfacial gap as.

Each of the primary fasteners 6 and 7 is required to keep the vertical pieces 6W and 7W in contact with and fixed to the concrete frame surface Sc for strength maintenance. Each of the fasteners 10 and 21 requires different front and rear position adjustment amounts according to the flattening reference of the panel P.
And since the secondary fasteners 10 and 21 are provided with a single-sided protruding piece 12a or double-sided protruding pieces 12a and 12b, it is difficult to dispose a sufficiently long front and rear elongated hole. 7 can be arranged up to a considerably large hole, facilitating the measurement and arrangement of each of the secondary fasteners 10 and 21 for adjusting the longitudinal movement.
In view of workability, it is preferable to perform the necessary amount of fine adjustment of the left and right positions after the front and rear position adjustment corresponding to the unevenness.
Therefore, it is possible to rationally implement the flattening arrangement under the firm fixation of the primary fastener 7 and the necessary forward / backward movement adjustment of the panel P.

  Moreover, in this invention, as shown to FIG. 3 (A), (B), each primary fastener 6 and 7 which provided each long hole H6 and H7 on the left and right is connected to the right-and-left connection part d3 of the heat insulation composite panel P. It is preferable to arrange two secondary fasteners 10 and 21 on the left and right on one primary fastener 6 and 7, respectively, which are arranged in (FIG. 12) and individually correspond to the long holes H6 and H7.

In this case, since one secondary fastener 10, 21 corresponds to one end of one panel P, the degree of freedom in positioning the secondary fastener on the primary fastener is increased, and the surface of each panel P is increased. The unification adjustment becomes easy, and the placement engagement work of each panel P on the secondary fastener becomes easy.
Moreover, at the upper end of the outer wall, as shown in FIGS. 11 (A) and 12 (A), the caps 3 are locked between the single-sided secondary fasteners 10 placed and secured on the intermediate primary fastener 7. The bracket 4 can be fixed to the primary fastener horizontal piece 7F by the screw 26a, and the work of attaching the bracket 4 to a predetermined position is facilitated.

Further, as shown in FIG. 9A, at the lower end of the outer wall, the gap follower sheet 23 is placed in the gap G1 between the upper surface of the horizontal piece 6F of the lower primary fastener 6 and the lower surface of the heat insulating layer Pb of the heat insulating composite panel P. It is preferable to arrange in a contact form.
In this case, the gap follow-up sheet 23 is only required to be able to close the gap G1 in an airtight manner. Typically, the gap follow sheet 23 is excellent in heat insulation, confidentiality, moisture resistance, and non-water absorption, width 20 mm, thickness This is Softron (trade name of Sekisui Chemical Co., Ltd.), a 2 mm thick polyethylene shape recovery foam.

In the softlon, the sheet foams after one day from the tensioning, and closes the gap in a contact and filling manner with the lower primary fastener 6, the heat insulation layer Pb lower end, and the concrete housing front surface Sc.
Accordingly, as shown in FIG. 9B, if the sealing 19 is applied to the interface gap as between the lower end of the panel heat insulating layer Pb and the concrete housing front surface Sc even in a portion where the lower end primary fastener 6 does not exist, the sealing 19 and the gap following sheet 23 are provided. Even if an interface gap as is generated between the heat insulating layer Pb of the heat insulating composite panel P and the concrete frame Cw, it can be completely closed at the lower end of the outer wall, and the interface gap as becomes a sealed air layer as an air heat insulating layer. Demonstrate heat insulation.

In addition, in the upper and lower connection part d4 of the panel P, as shown in FIG. 10, the in-situ foam heat insulating material 9 is filled so as not to close the groove a between the heat insulating layers Pb of the upper and lower panels, and between the cement plates Pa. Is preferably provided with a sealing 19.
In this case, a one-component polyurethane foam tube (capacity: 750 ml) is attached to the dispenser (Nippon Hilti Co., Ltd.) as a spraying tool via an adapter, and the connection part d4 is adjusted under the adjustment of the dispenser adjustment knob of the dispenser. If urethane is discharged from the gap, an appropriate amount of urethane can be injected into the space between the heat insulating layers Pb without closing the cement plate groove a.
And the heat insulation function fall in the connection part d4 can be suppressed by the urethane filling inside the connection part d4, and the sealing 19 in the front part.

In the present invention, as shown in FIG. 9, the lower end of the outer wall has a waist drainer 2 provided with air holes H2 in the bottom plate 2D, and the front upper portion is connected to the lower surface of the secondary fastener via the front mounting plate 15. It is preferably fastened, and the rear part of the bottom plate 2D is fastened to the primary fastener vertical piece 6W via the rear mounting plate 16 so that air can flow into the cement plate groove a from the air hole H2.
The waist drainer 2 can be firmly held by supporting the front and rear two points, and by adjusting the position of the rear mounting plate 16 and the bottom plate, it is possible to adjust the front / rear position of the lower end of the panel accompanying the front / rear position adjustment of the secondary fastener 10. Can follow up properly, and it has a uniform appearance.

In this case, as shown in FIG. 9 (A), if the waist water draining bottom plate 2D and the rear mounting plate 16 are fastened by sandwiching the decorative plate 17 in the form of an angle, the waist water vertical falling plate 2W and the decorative plate 17 Since the distance Wb between the vertical piece 17W can be fixed and the decorative plate 17 can conceal the lower end of the vertical piece 6W of the primary fastener 6, it is advantageous for uniform and clean finishing of the lower end of the lower drainage 2 It is.
Further, by providing a sealing 19 between the decorative plate vertical piece 17W and the concrete housing front surface Sc, the air flows into and out of the waist drainer 2 only by the air holes H2 of the bottom plate 2D and the cement plate groove a. The rising air flow from the air hole H2 into the heat insulating composite panel P is smoothly generated.

In the present invention, at the upper end of the outer wall, as shown in FIG. 11, the front portion of the angle-shaped headboard 3 is locked by the bracket 4 fixed to the upper end portion of the panel P, and the rear portion of the headboard 3 Is fixed to the concrete casing upper end face Fc, and the roof coating 9c is preferably arranged from the front end of the waterproof layer 9a on the concrete casing upper end to the panel upper end.
The roof coating 9c is typically asphalt, and the roof coating 9c closes the interfacial gap as between the concrete housing front surface Sc and the panel heat insulating layer Pb together with the end treatment of the roof waterproof layer 9a, and insulates the concrete housing front surface Sc. Prevents a decrease in the heat insulation function of the layer Pb.

In the present invention, in the left and right connection part d3 of the heat insulating composite panel P, as shown in FIG. 12, the contact interface Bb between the heat insulating layers Pb is on the cement board Pa surface, and the connection part between the cement boards Pa is provided. It is preferable to perform joint sealing at intervals of d3.
In this case, as shown in FIG. 2 (B), the width W1 (500 mm) of the heat insulating layer Pb is made larger than the width W0 (490 mm) of the cement plate Pa by an amount corresponding to the joint width, and the cement plate Pa and the heat insulating layer Pb are made. If the heat-insulating layer Pb is layered in a form that protrudes d1 (10 mm) at the one side edge PL and protrudes d2 (20 mm) at the other side edge PR, the heat-insulating layer Pb of the left and right panels only abuts against each other. As shown in FIG. 12C, in the connection part d3, the contact interface Bb of the heat insulating layer Pb is on the rib R1 surface of the cement plate Pa, and d2 (20 mm) −d1 (10 mm) between the cement plates Pa on both sides. The joint d3 (10 mm) can be formed.

Then, by applying a conventional sealing 19 to the joint d3, it is possible to prevent external air from entering the heat insulating layer Pb. For example, even if air enters the surface of the heat insulating layer Pb from the joint d3, the heat insulating layer Pb Can be prevented from reaching the abutment interface Bb, and can be prevented from entering the concrete housing surface Sc via the abutment interface Bb of external air.
Therefore, the heat insulation function decline with respect to the concrete housing front surface Sc of the panel heat insulation layer Pb in the right-and-left connection part d3 of the panel P can be prevented.

  In the present invention, the heat insulating composite panel P stretched on the concrete housing front surface Sc is locked to the secondary fasteners 10 and 21, and each secondary fastener 10 and 21 is fixed to the concrete housing front surface Sc. , 7 can be fixed under the front / rear / right / left position adjustment, so that the outer surface of each heat-insulating composite panel P connected in parallel, ie, each cement plate Pa, regardless of whether or not the concrete body front surface Sc is uneven. The surface can be installed evenly and evenly.

In addition, since the interfacial gap as generated between the panel heat insulating layer Pb and the concrete housing surface Sc generated by stretching the panels P flush with each other, the air flow in the gap as The air-insulating layer functions as an unsealed air layer, and, together with the panel heat-insulating layer Pb, provides an external heat-insulating function for the concrete frame Cw.
Since the primary fasteners 6 and 7 need only be firmly fixed to the concrete frame Cw by the anchor bolts 7a, the anchor bolts 7a can be embedded in the concrete frame Cw even after being applied to the existing concrete frame Cw. The present invention can also be applied to a new building or a dry insulation / exterior heat insulation construction method for an existing building.

Furthermore, since the heat insulating composite panel P guarantees the air flow Af in the panel P through the groove a group even though it is an adhesion layer type, the interface between the cement board Pa and the heat insulating layer Pb is viewed from below by the groove a group. It becomes an upper air-permeable layer and can solve the problem of dew condensation at the interface between the exterior material such as a cement board and the heat insulating layer, which is peculiar to the conventional adhesive layer type panel.
Accordingly, it is possible to prevent the heat insulation function from being deteriorated due to moisture absorption of the heat insulating layer Pb, to suppress the high temperature due to the solar radiation of the cement plate Pa due to the ventilation in the groove a, and to suppress the deterioration due to the heat stress when the cement plate Pa is used. It is possible to provide an outer wall having a uniform outer heat insulating function and durability over a long period of time.

  Further, the secondary fasteners 10 and 21 are fixed to the primary fasteners 6 and 7 abutted and fixed to the concrete housing front surface Sc by adjusting the front and rear, left and right positions, and fixed to the protruding pieces 12a of the secondary fasteners 10 and 21. , 12b, the heat insulating composite panel P is engaged with the secondary fastener by the engagement of the cement plate Pa with the groove a, so that the tensioning operation under the position adjustment of each panel P is easy. It is possible to easily perform the grouping arrangement work of the group regardless of the unevenness of the front surface Sc of the concrete frame Cw.

The primary fasteners 6 and 7 are firmly joined by fitting the large-diameter bolt insertion holes H60 and H70 of the vertical pieces 6W and 7W of angle-shaped steel materials to the small-diameter anchor bolts driven into the concrete frame Cw. The primary fasteners 6 and 7 can be fixed to the surface Sc of the concrete housing Cw under vertical and horizontal position adjustments, and the panel P can be stretched not only in the front-rear and right-and-left direction of the concrete housing Cw. It is possible to cope with unevenness in the vertical direction.
Therefore, the present invention is particularly effective for repairing the concrete enclosure front surface Sc to the outside heat insulation of an existing concrete building that is particularly uneven.

Further, since the intermediate primary fastener 7 has a universal nut fitting 8 that slidably holds a washer 8B having a nut 8A fixed to the lower surface of the horizontal piece 7F, each secondary fastener 10, 21 on the intermediate primary fastener 7 is provided. This position adjustment slide becomes the slide of the washer 8B in the universal nut fitting 8 of the bolt 13a in the temporarily fixed state, and the fine adjustment slide can be smoothly performed without damaging the heat insulating layer Pb.
In addition, each secondary fastener 10, 21 has a trapezoidal cross-sectional protrusion piece 12a, 12b fitted and locked in the trapezoidal section groove a1 of the panel cement plate Pa. It becomes easy to hold and hold the upper and lower ends of P.

  Further, the front / rear / left / right positions of the secondary fasteners on the primary fasteners are adjusted to the front / rear direction long holes H6 / H7 of the primary fasteners 6, 7 and the left / right direction long holes H10, H21 of the secondary fasteners 10, 21. Since the bolt 13a is inserted and temporarily fixed to the nut 8A in the universal nut fitting 8, it can be carried out smoothly without causing any trouble to the panel thermal insulation layer Pb, and on the thermal insulation layer Pb that houses the universal nut fitting 8 The notch C2 can also be a narrow notch corresponding to the width of the universal nut 8 from the inner surface of the heat insulating layer Pb, and the formation of the notch C2 can be easily made under the minimum of the defect of the heat insulating layer Pb.

In addition, since two secondary fasteners are arranged in a divided form with respect to one primary fastener, the position of each panel P can be adjusted at the end, and the position of each panel P group can be adjusted under fine adjustment. Mounting work is easy, which is advantageous for proper panel placement.
In addition, the bracket 4 for locking the headboard 3 can also be attached to the primary fastener between the single-sided secondary fasteners 10, and it is possible to rationalize the mounting of the bracket 4 and to uniformly hold the headboard 3 by arranging the brackets 4 at equal intervals. .

[Insulated composite panel (Fig. 2)]
2A is a partially cutaway perspective view of the panel P, FIG. 2B is a cross-sectional view taken along line BB of FIG. 2A, and FIG. 2C is a partially enlarged view of FIG. is there.
The heat-insulating composite panel P is formed by mixing and extruding a cement, oxalic acid raw material, and fiber raw material, and extruding and curing the autoclaved cement board Pa and 75 mm thick extruded polystyrene foam heat insulating material Pb. It is a laminate.

As shown in FIG. 2 (B), the cement plate Pa is provided with a group of strips a having a thickness T1 of 25 mm, a width W0 of 490 mm, and a depth of 13 mm on the inner surface in the vertical direction between the ribs R (R1, R2). In the groove a group, the pair of grooves a1 at both ends and in the center has a trapezoidal cross section in which one is inclined at 60 ° and the other is 80 °, and the other groove a2 is typically It is a rectangular cross section.
And, in the rib R2 at the boundary between the trapezoidal groove a1 and the adjacent groove a2, a transverse groove (not shown) for communicating both the grooves a1 and a2 is provided about 50 mm from the upper end and the lower end of the cement plate Pa. It is arranged at the position, that is, at the position where the secondary fastener protruding pieces 12a and 12b have a protruding length (30 mm) plus about 20 mm.
The reason why the trapezoidal grooves a1 are arranged in pairs in the center is that the cement plate Pa is divided into two in the width direction on the center rib R to enable use in a 1/2 width size.

The heat insulating layer Pb is a 500 mm foam molded heat insulating material whose width W1 is 10 mm larger than the cement plate width W0 (490 mm), and the adhesion between the cement plate Pa and the heat insulating material Pb is as shown in FIG. Adhering Pb to the top surface of the rib R on the groove arrangement surface of the cement plate Pa so as not to block the groove a and on the one hand entering the step d1 (10 mm) and projecting the step d2 (20 mm) on the other side. Integrate with agent.
Further, at the upper end of the panel P, the heat insulating layer Pb is provided with notches C1 for placing the primary fastener horizontal pieces 6F and 7F over the entire width, and at the positions corresponding to the cement plate trapezoidal grooves a1 at both ends, the free nut fitting 8 (FIG. 4) A notch C2 for insertion is provided.
In addition, length L0 of the heat insulation composite panel P is set according to the floor height of each application building.

[Lower-end primary fastener (Fig. 3 (A))]
This is adopted at the lower end of the outer wall constructed by the heat insulating composite panel P.
As shown in FIG. 3A, the lower primary fastener 6 is an equilateral angle steel having a length L6 of 210 mm, a thickness of 6 mm, and a width W6 of 65 mm. The horizontal piece 6F has a width of 40 mm from both ends 6S. A pair of 12 mm long and 30 mm long front and rear long holes H6 is drilled, and a 10 mm diameter anchor bolt 7a is fastened to the center of the vertical piece 6W so that the position can be adjusted. Hole H60 is drilled.

[Intermediate primary fastener (Fig. 3B, Fig. 4)]
It is employed at the upper and lower connection portions of the outer wall and the upper end of the outer wall.
3B is a perspective view of the intermediate primary fastener 7, FIG. 4A is a top view, FIG. 4B is a side view, and FIG. 4C is a rear view.
The intermediate primary fastener 7 is an equilateral angle steel having a length L7 (210 mm), a thickness 6 mm, and a width W7 (65 mm) equivalent to the lower primary fastener 6, and has a longitudinal longitudinal hole H7 equivalent to the lower primary fastener 6. A pair is arrange | positioned, and also, as shown in FIG. 4, the universal nut metal fitting 8 is arrange | positioned in the lower surface of each long hole H7 of the horizontal piece 7F.

  As shown in FIG. 4, the universal nut fitting 8 is made of 1.6 mm thick steel, and includes a bottom plate 8E having a width L8 of 36 mm and a side plate 8S having a height h8 of 20 mm. Projection piece 8M with a projection length of 5 mm and projecting inward over the entire length of the side plate, and an engagement groove 8G having a width of 4 mm and a depth of 5 mm is formed between the lower surface of the primary fastener horizontal piece 7F and the projection piece 8M. It is.

  Then, a short washer 8B having a thickness of 3 mm, a width WW of 20 mm, and a length WL of 30 mm is slidably fitted to the protrusions 8M on both sides in a mounted form in the engagement groove 8G. A nut 8A (outer diameter 18mm, height 8mm) for fastening a bolt 13a having a diameter of 10mm is fixed and integrated on the lower surface of 8B, and a bolt 13a inserted through a long hole H7 from above the horizontal piece 7F is attached to a universal nut fitting. The bolt 8 can be fastened to the nut 8 </ b> A whose co-rotation is suppressed by the washer 8 </ b> B in the inside 8.

[Single-sided secondary fastener (Fig. 5 (A))]
The single-sided secondary fastener 10 is for locking the panel groove a only on one side of the horizontal piece 10F, with the protruding piece 12a at the bottom end of the panel outer wall and the protruding piece 12a at the bottom end. It is what you use.
As shown in FIG. 5A, the single-sided secondary fastener 10 is a flat steel horizontal piece 10F having a thickness of 6 mm, a width (W10) of 65 mm, and a length L10 of 80 mm, and 17 mm from the rear end 10e at the center. A horizontal hole H10 having a width of 12 mm and a length of 30 mm is drilled at the position of, and the steel piece for fitting the trapezoidal groove a1 of the cement plate at the center of the lower surface of the front end of the horizontal piece 10F. A box-shaped protruding piece 12a having a thickness of 2.3 mm, a height h12 of 30 mm, a length L12 of 30 mm, and a width W12 of 12 mm and having a front surface closed with a face plate 12P is welded and integrated.
In this case, a welding hole is drilled in the substrate of the protruding piece 12a and welded to the lower surface of the horizontal piece 10F so that no raised meat is generated by welding around the base end of the protruding piece 12a.

[Double-sided secondary fastener (Fig. 5 (B))]
The double-sided secondary fastener 21 is provided with protruding pieces for fitting into the groove a of the panel cement board Pa on both upper and lower sides, and is used together with the intermediate primary fastener 7 at the upper and lower panel connecting portion d4. The additional protruding piece 12b, which is the same as the protruding piece 12a, is arranged at the same position on the surface opposite to the protruding piece 12a.
Since the double-sided secondary fastener 21 is disposed at the upper and lower connection portions of the panel P, the additional protruding piece 12b is used to form the panel vertical connection portion d4 height h21 on the horizontal piece 21F as shown in FIG. The angle steel L-shaped piece having the front plate 21h and the base plate 21a is firmly welded and fixed via the reinforcing pieces 21c on both sides, and the additional protruding piece 12b is placed on the base plate 21a at the horizontal portion of the L-shaped piece. Fix by welding.

[Wash drainer (Fig. 7)]
7 (A) is a perspective view of the waist drainer 2, FIG. 7 (B) is a sectional view taken along the line (A) and BB of the waist drainer 2, and FIG. 7 (C) is the front mounting plate 15. FIG. 7D is a perspective view of the rear mounting plate 16, and FIG. 7E is a perspective view of the decorative plate 17.
As shown in FIGS. 7A and 7B, the waist drainer 2 is a long object (standard: 4,000 mm), and the cross-sectional shape is a rising plate 2B having a height h2 ′ of 15 mm and a width W2 ′. Is a tilted top plate 2U having a height of 32 mm and a height of 2 mm, a falling plate 2W having a height h2 of 15 mm, and a width W2 of 95 mm rearward from the position where a 5 mm water slice 2C is left at the lower end of the falling plate 2W. The bottom plate 2D is provided with a pair of front and rear air holes H2 at intervals of 50 mm in the length direction.

The front mounting plate 15 and the decorative plate 17 are both long (standard 4000 mm), and the front mounting plate 15 is a 1.6 mm thick steel plate angle (right angle) bent material, The width W15 of 15F is 15 mm, and the height h15 of the vertical piece 15W is 20 mm.
The rear mounting plate 16 is a 1.6 mm-thick steel plate bent material, the horizontal side 16F has a width W16 of 40 mm, the vertical piece 16W has a height h16 of 20 mm, and each anchor bolt 6a is fastened. A short object that does not interfere with the washer 6b.
The decorative plate 17 for concealing the vertical piece 6F of the primary fastener 6 is a 1.5 mm thick mountain-shaped aluminum extrusion molded product, the horizontal piece 17F has a width W17 of 40 mm, and the height of the vertical piece 17W. h17 is 30 mm.

[Head bracket (Fig. 8)]
The headboard bracket is composed of the headboard 3 and a bracket 4 for mounting the headboard. FIG. 8A is a perspective view of the headboard 3, and FIG. 8B is a cross-sectional view taken along line BB in FIG. FIG. 8C is a perspective view of the bracket 4.
The headboard 3 is disposed above the upper end side Pt of the composite panel P at the upper end of the outer wall, treats the end of the waterproof layer of the roof parapet or the roof of the concrete frame, has the effect of parting between the outer wall and the roof, and the outer wall The air outflow from the ventilation layer a of the panel P is guaranteed.

The headboard 3 is made of aluminum having a general thickness of 2 mm, is a standard 4000 mm long straight member, has a collar width L3 of 170 mm, a height h3 of the front falling plate 3F is 45 mm, and is rearward from the upper end of the falling plate. The top horizontal plate 3U having a width d30 of 120 mm, a rising plate 3B having a height h30 of 18 mm from the rear end of the top horizontal plate 3U, and a bottom plate having a width d31 of 60 mm rearward from the lower end of the rising piece 3B. 3D, the front end falling plate 3F has an anchor piece 3F 'with a lower end 7mm width and a 45 ° oblique drainage function, and a horizontal projection 5mm wide rearward from the anchor piece base to drain the rising rainwater. A projection 3M ′ having a function and a falling plate 3F reinforcement function, and a rear projection 3M having a width of 5 mm in which an engagement groove 3G having a width of 3.5 mm is formed on the lower surface of the front end of the top end horizontal plate 3U are provided. .
The bracket 4 is an aluminum sheet metal bent piece having a thickness of 3 mm. As shown in FIG. 8C, the length Lu of the upper horizontal piece 4U is 23 mm, the height h4 of the vertical piece 4W is 25 mm, and the bottom plate 4D. This is a right-angled bent form having a length Ld of 52 mm and a width W4 of 40 mm.

[Construction of outer wall]
The present invention is applied to a dry-coating repair outer heat insulating construction method.
[Construction of the lower part of the outer wall (Figs. 1 and 9)]
The lower primary fastener 6 and the single-sided secondary fastener 10 are used for panel attachment at the lower end of the outer wall.
First, the concrete frame Cw of an existing building is marked with a standard black ink, a hole with a diameter of 10.5 mm is drilled at the corresponding position on the panel side edge of the concrete frame, and a post-installed anchor bolt 7a (Sanko Techno Co., Ltd.) ) Product name: All anchor, Okabe Construction Materials Co., Ltd. product name: Nail anchor, etc.) is inserted, and the core rod in the center of the diameter of the post-installed anchor bolt 7a is driven with a hammer, and the tip of the post-installed anchor bolt is inside the concrete. An open state is applied, and a tensile load strength of 890 kgf is applied to each anchor bolt 7a.

Next, as shown in FIG. 9 (A), a bolt insertion hole H60 (hole diameter: 20 mm) of the vertical piece 6W of the lower primary fastener 6 is fitted into the protruding portion of the anchor bolt 7a, and a washer having a bolt hole with a diameter of 12 mm. The nut 7c is firmly tightened through 7b.
In this case, since the hole H60 of the primary fastener has a diameter of 20 mm and an anchor bolt diameter of 10 mm, the anchor bolt 7a and the lower end primary fastener 6 are firmly fastened under the necessary adjustment of the vertical and horizontal directions. .

The load weight per panel is about 45 kg, and the lower primary fastener 6 is disposed at the side end position of each panel P, that is, at the position of the connection joint d3 (FIG. 1). Is possible.
Next, two single-sided secondary fastener horizontal pieces 10F are placed on the horizontal piece 6F of one fixed lower end primary fastener 6 with the protruding piece 12a protruding upward, and each single-sided secondary fastener 10 is placed. The bolt insertion hole H10 is overlapped with the bolt insertion hole H6 of the lower end primary fastener 6, a bolt 13a having a diameter of 10 mm is inserted through a washer, and the secondary fasteners 10 are inserted in the front and rear direction long holes H6 and the left and right direction long holes. The position is adjusted by H10 and firmly tightened by the nut 14a via the lower washer 14b.

  Then, as shown in FIG. 9A, a gap follower sheet 23 (Sekisui Chemical Co., Ltd., trade name) 20 mm wide and 2 mm thick, in contact with the front surface Sc of the concrete casing Cw, behind the lower end primary fastener horizontal piece 6F. : Softlon), and the cross-section trapezoidal grooves a1 at both ends of both sides of the heat insulating composite panel P arranged side by side at the lower end of the outer wall are fitted into the secondary fastener upward projecting piece 12a, and the single-sided secondary fastener horizontal piece 10F Then, the lower end surfaces of the cement plates Pa of the panels P on both sides are supported.

When rattling occurs in the engagement between the upper protruding piece 12a of the single-sided secondary fastener 10 and the cement plate Pa, the face plate 12P and the cement plate Pa of the upper protruding piece 12a are fastened with the screws 26.
In addition, the recessed part (not shown) for inserting the volt | bolt 13a and the washer 13b is previously formed in the lower end of the panel heat insulation layer Pb.

  After placing and fixing the heat insulating composite panel P on the single-sided secondary fastener 10, the lower end of the panel heat insulating layer Pb and the concrete housing front surface Sc as shown in FIG. When an interfacial gap as occurs, sealing 19 is applied via a backup material 19 ', and when the interfacial gap as does not occur or is small, it is commonly used at the boundary between the lower end of the heat insulating layer Pb and the concrete frame front surface Sc. Sealing (not shown) is performed, and air intrusion into the interfacial gap as between the lower end of the panel heat insulating layer Pb and the concrete housing front surface Sc is closed.

  Next, as shown in FIG. 9A, the horizontal piece 15F of the front attachment plate 15 is placed on the lower surface of the front end of the single-sided secondary fastener horizontal piece 10F, the vertical piece 16W of the rear attachment plate 16 of the short object, and the lower end primary fastener vertical piece. 6W between the washers 7b so as not to interfere with each washer 7b and welded, the waist water rising plate 2B is the front mounting plate vertical piece 15W front surface, the back of the waist water cutting bottom plate 2D is the horizontal piece 17F of the decorative plate 17 Are fastened with screws S to the rear mounting plate horizontal piece 16F.

Prior to screwing the bottom plate 2D and the horizontal piece 16F, the decorative plate horizontal piece 17F is previously bonded to the upper surface of the bottom plate 2D with the width Wb between the water slice 2C and the decorative plate vertical piece 17W being constant. Keep it.
Further, a sealing 19 is applied to a gap G2 between the decorative plate vertical piece 17W and the concrete housing front surface Sc via a backup material 19 '.
In addition, on the front surface of the rising plate 2B of the waist drainer 2, a sealing 19 is also provided between the lower end of the panel cement plate Pa and the inclined drainage top plate 2U via a backup material 19 '.

[Connection of upper and lower panels (Fig. 10)]
Further, as shown in FIG. 4, the upper end of the lower heat insulating composite panel P and the lower end of the upper heat insulating composite panel P are connected to an intermediate primary fastener 7 having a nut nut sliding universal fitting 8 on the lower surface of the horizontal piece 7F. The projecting pieces 12a and 12b are formed above and below the horizontal piece 21, and the upper projecting piece 12b is a double-sided secondary fastener 21 disposed on a support base 21a for forming a connection joint d4, and the intermediate primary fastener 7 is anchor bolt. 7a is fastened to the front surface Sc of the concrete housing Cw, and the lower protruding piece 12a of the double-sided secondary fastener 21 is locked to the upper end of the groove a1 of the lower panel, and then the left and right elongated holes H21 of the secondary fastener 21 The double-sided secondary fastener 21 is positioned and fixed to the intermediate primary fastener 7 through the front and rear elongated holes H7 of the primary fastener 7, and then the groove a1 at the lower end of the upper panel P is connected to the secondary groove 21. If locking upwardly projecting piece 12b of the listener 21, the upper and lower panel joint can be achieved.

In addition, the upper and lower connection part d4 is a dispenser (Nippon Hilti Co., Ltd., product name) with a one-component polyurethane foam tube (capacity: 750 ml) attached via an adapter, under the adjustment with the discharge amount adjustment knob, Gel-like urethane is discharged from the gap between the connecting portions d4, and the foam is filled and foamed so that the cement plate groove a group is not blocked and the urethane also wraps around the back side of the double-sided secondary fastener 21.
Since gelled urethane foams immediately when exposed to air, it does not hinder the flow down into the interstitial gap as.
In addition, a backer 20 (Ube Nitto Chemical Co., Ltd. trade name: Dunplate) provided with both side plates 20S and a partition plate 20W is interposed between the upper and lower panel strips a1 after the injection of gel-like urethane. Then, the joint is closed with the sealing 19 through the backup material 19 'on the front surface.

[Construction of the upper part of the outer wall (FIGS. 1 and 11)]
The intermediate primary fastener 7 and the single-sided secondary fastener 10 are used for panel attachment at the upper end of the outer wall.
As shown in FIG. 11A, the anchor bolt 7a is driven into the concrete frame Cw, and the bolt insertion hole H70 (hole diameter: 20 mm) of the vertical piece 7W of the intermediate primary fastener 7 provided with the universal nut fastener 8 on the lower surface is removed. The nut 7c is firmly fastened through a washer 7b having a bolt hole with a diameter of 12 mm by finely adjusting the position of the intermediate primary fastener 7 by fitting to the protruding portion of the anchor bolt 7a with a diameter of 10 mm.

  Next, the horizontal piece 10F of the single-sided secondary fastener 10 in which the downward projecting piece 12a is locked to the groove a1 on one side end of the panel P is placed on one elongated hole H7 of the horizontal piece 7F of the fixed intermediate primary fastener 7. Place the bolts H7 and H10 for bolt insertion of both fasteners 7 and 10, and insert a bolt 13a having a diameter of 10mm into a nut 8A in the universal nut 8 on the lower surface of the intermediate primary fastener 7 through a washer 13b. Then, after the position of the single-sided secondary fastener 10 is adjusted by the front / rear direction long hole H7 and the left / right direction long hole H10, the bolt 13a is firmly fastened to the nut 8A whose rotation is restricted by the integrated washer 8B.

  Similarly, the secondary fastener 10 locked in the groove a1 at the other end of the other panel is bolted to the other elongated hole H7 of the primary fastener 7, and as shown in FIG. 12 (A), on the panel connection portion d3. On the one primary fastener 7 arranged, two secondary fasteners 10 that lock the upper surface of each panel P end are fastened.

Then, as shown in FIG. 11B, an asbestos-cement board 18 (JISA5403 asbestos slate) having the same thickness as the primary fastener horizontal piece 7F is adhered to the heat insulation layer notch C1 between the intermediate primary fastener horizontal pieces 7F. Repair notch C1 on the upper surface of Pb.
Next, as shown in FIGS. 11 (A) and 12 (A), the bottom plate 4D of the bracket 4 is drilled at a predetermined position between the secondary fasteners 10 on both sides of the primary fastener horizontal piece 7F (Sanko Techno Co., Ltd.). The product is fastened to the primary fastener horizontal piece 7F with a screw 26a such as a product name), and the brackets 4 are arranged at intervals of each panel.

Further, asphalt roof coating 9C is applied from the front edge of the existing waterproof layer 9a to the rear end of the upper end of the panel P on the front surface of the concrete housing upper end, as shown in FIGS. 11A and 11B, and the concrete housing front surface Sc and the panel. The interface gap as between the heat insulation layers Pb is closed.
In this case, a large portion of the interfacial gap as is filled with the backup material 19 ′ as necessary to apply the roof coating 9c.
Further, if necessary, the cement plate Pa is fixed to the face plate 12P of the secondary fastener protruding piece 12b by the screw 26.

Next, as shown in FIG. 11A, the cap 3 is fitted and locked with the engaging groove 3G at the front end of the lower surface of the top horizontal plate 3U at the front end of the horizontal piece 4U of the bracket 4 fixed on the intermediate primary fastener horizontal piece 7F. Then, the rear part of the bottom plate 3D extending rearward is fixed to the concrete casing (parapet) Cw upper end face Fc from above the existing waterproof layer 9a with a screw 26b.
In this case, if the existing waterproof layer 9a is not flat, a packing is interposed between the bottom plate 3D and the waterproof layer 9a as necessary.
Further, a new waterproof layer 9b is stretched in contact with the rising piece 3B on the cap board bottom plate 3D, and a sealing 19 is provided between the waterproof layer 9b and the lower surface of the top end horizontal plate 3U.

In addition, as shown in FIG. 12, each heat insulation composite panel P from the lower end to the upper end of the outer wall is in the middle in the vertical direction as in the conventional examples 1 and 2, and the cement plate Pa is attached with the post-installed anchor 24 at appropriate positions on both side ends. It hits the concrete frame Cw.
In this case, as shown in FIG. 2 (B), the left and right side surfaces of each panel P protrude with d1 (10 mm) on the one side PL and d2 (20 mm) on the other side PR with respect to the cement board Pa. Therefore, at the panel left and right connection part d3, as shown in FIG. 12C, the heat insulating layer Pb contact interface Bb of both side panels can be closed on the cement plate Pa surface, and the joint d3 is sealed via the backup material 19 '. By filling 19, the inflow of air into the joint d3 → the heat insulating layer Pb → the concrete frame can be completely prevented, and the heat insulating function deterioration at the connecting portion d3 of the panel P can be suppressed.

As described above, in the outer heat insulating outer wall in which the heat insulating composite panel P group is attached to the concrete housing front surface Sc, the contact interface Bb of the heat insulating layer Pb is closed at the cement plate Pa surface in the left and right parallel connection portion d3 of the panel P. As a result, air intrusion into the contact interface Bb is completely prevented, and a decrease in the heat insulation function at the connection part d3 can be prevented, and the upper and lower connections of the panel P are also performed at the interface gap as between the panel heat insulation layer Pb and the concrete housing front surface Sc. However, at the lower end, the gap follower sheet 23 and the sealing 19 are closed, and the middle panel upper and lower connection part d4 is closed with the in-situ foam heat insulating material 9, and the upper end is closed with the asphalt roof coating 9c. Therefore, the outer wall provided with the heat insulating composite panel P exhibits the outer heat insulating function as designed.
In the upper and lower connection part d4, air can flow from the lower panel groove a to the upper panel groove a. Therefore, the outer wall on which the heat insulating composite panel P is stretched is connected from the lower end drainage drainage 2 to the upper end headboard 3 The air flow Af to the outside via the is guaranteed.

  Moreover, since each primary fastener 6 and 7 is all fixed to the front surface Sc of the concrete frame Cw, it can be firmly fixed by the anchor bolt 7a, and each panel P is based on the maximum uneven projection of the concrete frame front surface Sc. In the non-landic concave part of the concrete body surface Sc, the surface of the concrete body 15 m after construction is 1 m away from the surface of the concrete body, since it is stretched flush with the interface P between the panel P and the concrete body surface Sc. Even a concrete building with an unevenness of 10 mm or more can be repaired to a high-performance external heat insulating concrete building in which the outer wall surface, that is, the panel cement board Pa surface is cleanly aligned.

[Others]
6A is a modified type of the single-sided secondary fastener 10, and the secondary fastener 21 ′ of FIG. 6B is a modified type of the double-sided secondary fastener 21.
That is, the horizontal pieces 10F ′ and 21F ′ are set to the same or approximate dimensions as the lengths L6 and L7 of the primary fasteners 6 and 7 only in the dimensions L10 ′ and L20 ′. The protruding piece is arranged.
If the secondary fasteners 10 ′ and 21 ′ of the modified example are employed for renovation of a building having a low concrete surface Sc, the panel can be stretched with good workability.

Further, when the interface gap as is large at the upper and lower panel connecting portion d4, prior to the engagement mounting of the upper panel P on the double-sided secondary fastener 21, the intermediate primary fastener 7 and between the intermediate primary fasteners 7 If the gap following sheet 23, the backup material, etc. are arranged in contact with the concrete housing front surface Sc on the heat insulating layer Pb, the subsequent filling and filling of the in-situ foam heat insulating material 9 can be carried out rationally.
Moreover, if all the groove | channel a of a cement board is made into the rectangle of uniform cross section, and it closes between the ribs R with an iron piece only in the groove | channel a which inserts the secondary fastener protrusion piece of a side end, it is for insertion engagement. The protruding pieces 12a and 12b of the secondary fastener can also have a rectangular cross section, so that the molding of the cement panel Pa and the manufacturing of the protruding pieces of the secondary fasteners 10 and 21 can be rationalized.

In the present invention, when a concrete building is newly constructed, if the anchor bolt 7a is embedded in the front surface of the concrete frame Cw and embedded in the concrete, even if a non-landing occurs on the front surface Sc of the cast concrete frame Cw, it is simple and rational. The insulation composite panel P can be stretched on the surface and applied to new construction of concrete buildings. However, in the case of existing concrete buildings that have been built for more than 15 years, the outer surface of the concrete frame is about 10 mm per meter. Since land is common, it is particularly effective when applied to renovate existing concrete buildings to external insulation buildings by dry cover renovation.
Therefore, the present invention is a highly practical invention that is extremely advantageous particularly for the repair of concrete buildings.

It is a partially cutaway perspective view of the present invention outer wall. It is explanatory drawing of the panel used for this invention, Comprising: (A) is a perspective view, (B) is the BB sectional drawing of (A), (C) is the elements on larger scale of (B). It is explanatory drawing of this invention primary fastener, Comprising: (A) is a perspective view of a lower end primary fastener, (B) is a perspective view of an intermediate | middle primary fastener. It is explanatory drawing of an intermediate | middle primary fastener, Comprising: (A) is a top view, (B) is a side view, (C) is a rear view. It is this invention secondary fastener explanatory drawing, Comprising: (A) is a perspective view of a single-sided secondary fastener, (B) is a perspective view of a double-sided secondary fastener. It is a modified example figure, (A) is a modified example perspective view of a single-sided secondary fastener, (B) is a modified example perspective view of a double-sided secondary fastener. It is explanatory drawing of the waist drainage metal fittings of this invention, (A) is a waist drainage perspective view, (B) is the BB sectional drawing of (A), (C) is a front part mounting plate perspective view, (D ) Is a rear mounting plate perspective view, and (E) is a decorative plate perspective view. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a headwood fitting of the present invention, wherein (A) is a perspective view of the headboard, (B) is a cross-sectional view taken along line BB of (A), and (C) is a perspective view of a bracket. It is sectional drawing of the lower end part of this invention outer wall, Comprising: (A) is a panel latching | locking part, (B) is a figure which shows parts other than a panel latching part. It is explanatory drawing of the panel vertical connection part of this invention outer wall, Comprising: (A) is a panel latching | locking part cross section, (B) is a figure which shows the cross section of parts other than a panel latching part, (C) is a backer. It is a perspective view of material. It is sectional drawing of the upper end part of this invention outer wall, Comprising: (A) is a panel latching | locking part, (B) is a figure which shows parts other than a panel latching | locking part. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of a panel left and right connection portion of an outer wall of the present invention, wherein (A) is a diagram showing an arrangement relationship between an intermediate primary fastener and a single-sided secondary fastener at the upper end of the outer wall; It is a figure which shows an anchor, (C) is the C section enlarged view of (B). It is explanatory drawing of the prior art example, (A) is an outer wall cross-sectional view, (B) is the B section enlarged view of (A), (C) is an outer wall upper cross-sectional view, (D) is an outer wall lower cross-sectional view. is there. It is explanatory 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 section, (D) is an outer wall lower section is there.

Explanation of symbols

2 Waist drainer 2B Rising plate 2C Water slice 2D Bottom plate 2U Inclined top plate 2W Falling plate 3 Kasagi 3B Rising piece 3D, 4D Bottom plate (lower horizontal plate)
3F Falling plate 3F 'Anchor piece 3G, 8G Engagement groove 3M, 3M' Protrusion 3U Top end horizontal plate 4 Bracket 4U Upper horizontal piece (horizontal piece)
6 Lower primary fastener (primary fastener)
7 Intermediate primary fastener (primary fastener)
7a Anchor bolt (post-installed anchor bolt)
7b, 8B, 13b, 14b Washers 7c, 8A, 14a Nut 6F, 7F, 10F, 10F ', 15F, 16F, 17F, 21F, 21F' Horizontal pieces 7S, 10S, 21S Side ends 4W, 6W, 7W, 15W, 16W, 17W Vertical piece 8 Swivel nut fitting 8E Bottom plate 8M Protrusion piece 8S Side plate 9 Insulated foam insulation 9a Existing waterproof layer 9b Waterproof layer (new waterproof layer)
9c Roof coating 10,10 'Single-sided secondary fastener (secondary fastener)
21,21 'Double-sided secondary fastener (secondary fastener)
12a protruding piece 12b additional protruding piece (protruding piece)
12P face plate 13a bolt 15 front mounting plate 16 rear mounting plate 17 decorative plate 18 asbestos cement plate (plate material)
19 Sealing 19 'Backup material 20 Backer 20S Side plate 20W Partition plate 21a Base plate 21b Front plate 21c Reinforcing piece 24 Post-installed anchor 26, 26a, 26b, S Thread a, a1, a2 Strip (air vent layer)
as interface gap (sealed air layer)
Af Air flow (air flow)
Bb contact interface (heat insulation layer interface)
C1, C2 Notch Cw Concrete frame d1, d2 Step d3, d4 Connection part (connection joint, joint)
Fc concrete frame upper end surface (upper surface)
H2 Air hole H6, H7 Long hole (Bolt insertion hole)
H60, H70 Bolt insertion hole (bolt hole)
P Insulated composite panel (panel)
Pa Cement board Pb Heat insulation layer (heat insulation board, heat insulation material)
PL Left end surface PR Right end surface Pt Upper end surface R (R1, R2) Rib Sc Front (Concrete body front)

Claims (15)

Adhesion layer type heat insulating composite panel (P) with cement plate (Pa) and heat insulating layer (Pb) layered on the inner surface with strips (a) arranged in the vertical direction, and angle of each horizontal piece and vertical piece Bottom primary fastener (6) and intermediate primary fastener (7), single-sided secondary fastener (10) with projecting piece (12a) on one side of each horizontal piece form, and projecting pieces (12a, 12b) on both sides Each of the primary fasteners (6, 7) is fixed to the front surface (Sc) of the concrete housing (Cw), and the single-sided secondary fastener (10) is the lower end of the outer wall or At the upper end, the double-sided secondary fastener (21) is the panel connection part (d4) on the upper and lower sides of the outer wall, and through the protruding pieces (12a, 12b) to the groove (a) of the cement board on the end face of the heat insulating composite panel (P). Each secondary fastener (10 21) is fixed to the horizontal pieces (6F, 7F) of the primary fasteners (6, 7) by adjusting the front / rear / right / left positions, and the interface gap (as) between the panel heat insulating layer (Pb) and the front surface of the concrete body (Sc). A breathable outer heat insulating outer wall of a concrete building, which prevents air flow in the panel (P) and guarantees air flow (Af) from the lower end to the upper end of the outer wall of the groove (a) group in the panel (P).
The heat insulation composite panel (P) includes a group of vertical grooves (a1, a2) in which a cement plate (Pa) includes a groove (a1) having a trapezoidal cross section at both ends, and a heat insulation layer (Pb) is provided for each groove. The breathable outer heat insulating outer wall according to claim 1, wherein a molded foam heat insulating material is laminated and integrated on the (a1, a2) surface.
In the heat insulating layer (Pb) of the heat insulating composite panel (P), a notch (C1) is arranged corresponding to the horizontal plate thickness of the primary fastener over the entire width of the upper end and the upper inner surface, and the panel (P 3) The breathable outer heat insulating outer wall according to claim 1 or 2, wherein a cutout (C2) for fastening a secondary fastener is further disposed on the cutout (C1) at both ends.
Each primary fastener (6, 7) is an angle steel material having long holes (H6, H7) in the horizontal pieces (6F, 7F) and bolt insertion holes (H60, H70) in the vertical pieces (6W, 7W). Bolt insertion holes (H60, H70) larger in diameter than the anchor bolts (7a) placed on the vertical pieces (6W, 7W) with respect to the anchor bolts (7a) driven into the concrete housing front surface (Sc) The breathable outer heat insulating outer wall according to any one of claims 1 to 3, wherein the outer bolt is bolted to the anchor bolt (7a) via a bolt under position adjustment.
The horizontal piece (7F) of the intermediate primary fastener (7) is provided with a universal nut fitting (8) on the lower surface of the long hole (H7), and a washer (8A) is fixed in the universal nut fitting (8). The breathable outer heat insulating outer wall according to claim 4, wherein 8B) is slidable and held together.
The single-sided secondary fastener (10) projects a trapezoidal cross-sectionally protruding piece (12a) on the front end single face of a horizontal piece (10F) having a long hole (H10), and the outer wall lower end or upper end of the heat insulating composite panel (P) The breathable outer heat insulating outer wall according to any one of claims 1 to 5, wherein the protruding piece (12a) is engaged with the groove (a1) having a trapezoidal cross section.
The double-sided secondary fastener (21) has a trapezoidal cross-section protruding piece (12a, 12b) protruding from the upper and lower surfaces of the front end of the horizontal piece (21F) having a long hole (H21) and arranged between the upper and lower panels. The breathable outer heat insulation outer wall of any one of Claims 1 thru | or 6 which latched the protrusion piece (12a, 12b) of the up-and-down surface to the groove | channel (a1) of the trapezoid cross section of the heat insulation composite panel (P).
The breathable outer heat insulating outer wall according to claim 7, wherein the upper protruding piece (12b) is arranged to protrude on a joint base plate (21a) arranged on the horizontal piece (21F).
Each primary fastener (6, 7) is provided with a longitudinal hole (H6, H7) in the horizontal piece (6F, 7F), and each secondary fastener (10, 21) is provided in the horizontal piece (10F, 21F). It has long holes (H10, H21) in the left-right direction, and the secondary fasteners (10, 21) are connected to the primary fasteners (6, 7) through the front-rear direction long holes (H6, H7) and the left-right direction long holes (H10, H21) 9) The breathable outer heat insulating outer wall according to any one of claims 1 to 8, wherein the outer wall is adjusted in position and bolted.
The primary fasteners (6, 7) provided with the respective long holes (H6, H7) on the left and right sides are arranged in the left and right connection portions (d3) of the heat insulating composite panel (P), and the respective long holes (H6, H7) are individually provided. The breathable outer heat insulating outer wall according to any one of claims 1 to 9, wherein two of the secondary fasteners (10, 21) corresponding to the above are arranged on the left and right on one primary fastener (6, 7). .
At the lower end of the outer wall, the gap follower sheet (23) is placed in the gap (G1) between the upper surface of the horizontal piece (6F) of the lower primary fastener (6) and the lower surface of the heat insulating composite panel (P). The breathable outer heat insulating outer wall according to any one of claims 1 to 10, which is disposed in contact form on (Sc).
In the upper and lower connection part (d4) of the panel (P), the foamed thermal insulation material (9) is filled so as not to close the groove (a) between the heat insulating layers (Pb) of the upper and lower panels, and the cement plate The breathable outer heat insulating outer wall according to any one of claims 1 to 11, wherein a sealing 19 is provided between (Pa).
At the lower end of the outer wall, a waist drainer (2) having an air hole (H2) in the bottom plate (2D) is fastened to the lower surface of the secondary fastener via the front mounting plate (15) at the front upper part, and the bottom part is the bottom plate (2D) The rear end is fixed to the primary fastener vertical piece (6W) via the rear mounting plate (16), and air can flow into the cement plate groove (a) from the air hole (H2). The breathable outer heat insulation outer wall of any one of thru | or 12.
At the upper end of the outer wall, the front portion of the angle-shaped headboard (3) is locked with a bracket (4) fixed to the upper end portion of the panel (P), and the rear portion of the headboard (3) is fixed to the upper end surface of the concrete frame (Fc The breathable outer heat insulating outer wall according to any one of claims 1 to 13, wherein a roof coating (9c) is disposed from the front end of the waterproof layer (9a) on the upper end surface of the concrete frame to the upper end surface of the panel.
  In the left and right connection part (d3) of the heat insulating composite panel (P), the contact interface (Bb) between the heat insulating layers (Pb) is on the cement board (Pa) surface, and the connection part (d3) between the cement boards (Pa). The breathable outer heat insulating outer wall according to any one of claims 1 to 14, wherein the outer wall is airtightly sealed at intervals.

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