JP3753716B2 - Bottom structure of breathable outer heat insulation outer wall - Google Patents

Description

  The present invention relates to an outer wall lower end structure of an outer heat insulating building through which outside air can penetrate from an outer wall lower end drainage drainage to an outer wall upper end headboard, and more specifically, heat insulation to a molded cement exterior plate. The present invention relates to an outer heat insulating construction method in which an adhesion layer type heat insulating composite panel having an integrated layer is attached to a concrete frame together with drainage, and belongs to the technical field of architecture.

There are a conventional example 1 shown in FIG. 8 and a conventional example 2 shown in FIG. 9 as a technique for sticking an adhesive 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. 8, a cement plate provided with a groove on the inner surface and provided with holes for post-construction anchors at appropriate positions. Adhering the heat-insulating layer of the heat-insulating composite panel with the heat-insulating layer to the concrete frame with an adhesive, driving the anchor from the cement board to the concrete frame, and driving it into the concrete frame It is a technology that supports the lower end of the outer wall of the heat-insulating composite panel with the weight receiving angle fastened to the anchor bolt, and renovates the concrete building to the outer heat insulation.

  Further, Conventional Example 2 is disclosed in Non-Patent Document 3, and as shown in FIG. 9, 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-insulating composite panel (trade name: Omar YB-R from Iwakura Chemical Industry Co., Ltd.) is used as the exterior material. At the same time, the surface of the heat insulation layer is provided with a dango-like adhesive at appropriate intervals, and the heat insulation layer of the panel is adhered to the surface of the concrete body with the dango-like adhesive, and the post-installed anchor is then attached from the exterior material surface to the concrete body. The bottom of the composite panel is closed with GFPC exterior material and sealing as shown in FIG. 9 (C), or the drainage mounting base attached to the concrete frame as shown in FIG. 9 (D). Through material Mounting aluminum drained Te, performs a sealing in the gap of the insulating composite panel bottom and drained Prefecture.

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. It is effective for application to concrete buildings where there is a risk of contamination, and concrete buildings with dirt and designs that are obsolete. It can be renovated into a concrete building with energy saving and durability.

  However, in the 1997 edition of the Architectural Institute of Japan, “Standard Specification for Building Construction, Remarks (JASS5) Reinforced Concrete Construction” 1997 edition, the unevenness of the outer wall surface is less than 10 mm per 3 m for tiles and 10 mm per 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 renovation of Conventional Example 1, the thermal insulation composite panel is bonded to the surface of the concrete frame on the outer wall of the existing building. Therefore, if there is unevenness (surface unevenness) on the outer surface of the concrete frame, the longitudinal direction of the thermal insulation composite panel Since the adjustment is impossible, 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 crush the protruding surface of the concrete frame prior to the tensioning of the heat insulating composite panel. It is difficult to make the surface of the concrete body uniform.

  In addition, the heat insulating composite panel was originally developed as a form for concrete integration, and was provided with a groove to improve adhesion to the integrated concrete. The material is layered and integrated into a heat-insulating composite panel (trade name: Achilles KD panel), and the groove is only meaningful for reducing the weight of the cement board in the panel. As is clear from the fact that the outer wall of the heat-insulating composite panel is supported by the weight-receiving angle at the bottom edge of the panel with surface contact, there is no air permeability. It has the problem of interfacial dew condensation peculiar to heat insulating composite panels.

  In addition, even in the dry-coating repair construction method of Conventional Example 2, the adhesive composite panel is stuck to the surface of the concrete frame because the adhesive balls are scattered and the panel is pressed and bonded. Although the deformation of the pressure can slightly cope with the unevenness of the concrete body surface, the adjustment of the unevenness is small, so it is also necessary to work on the protruding surface of the concrete body surface before the panel is attached. In addition, the workability of sticking the heat-insulating composite panel accompanying the turning work is poor, and it is difficult to make the outer wall surface flat.

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 lower structure that can be constructed with good workability, and it is an adhesion layer type heat insulating composite panel, but it penetrates the upper and lower continuous panels from the lower drainage panel at the lower end of the outer wall. The present invention provides a lower end structure of the outer wall that allows ventilation to the headboard, and solves the problems of Conventional Example 1 and Conventional Example 2 as described above.

In the present invention, for example, as shown in FIG. 1, an adhesive layer type heat insulating composite panel P in which a cement board Pa provided with a groove a for ventilation and a heat insulating layer Pb are layered, and a lower end of the panel P are locked. Secondary fastener 10, primary fastener 6 in which the secondary fastener 10 is bolted so as to be adjustable in the front-rear and left-right directions, and a waist drainer 2 having an air hole H <b> 2 disposed below the panel P. Is an angle steel material having a horizontal piece 6F and a vertical piece 6W. The vertical piece 6W is fastened to an anchor bolt 6a driven into the concrete foundation 1, and is insulated from the lower end of the panel P locked to the secondary fastener 10. The interface gap a ′ between the layer Pb and the front surface Sc of the concrete foundation 1 is closed in an airtight manner, and the waist drainer 2 is fixed to the front lower surface of the secondary fastener 10 via the front mounting plate 15 at the upper front. The rear plate of the bottom plate 2D And fixed to the primary fastener 6 through 6, and were fastened to guarantee venting of the air hole H2 to groove a in the panel P, it relates to a lower end structure of the outer wall.
The airtight closing between the heat insulating layer Pb and the front surface Sc of the concrete foundation 1 only needs to be able to prevent air from flowing into the interface gap a ′ between the heat insulating layer and the front surface of the concrete foundation, and is typically a sealing process. .

As shown in FIG. 4A, the primary fastener 6 is an angle steel material having a horizontal piece 6F and a vertical piece 6W, and is preferably bonded to an anchor bolt 6a driven into the concrete foundation 1.
In this case, a new building having the structure of the present invention can be obtained by embedding the anchor bolt 6a in the foundation 1 at the time of construction of the concrete frame, and the present invention can be obtained as a dry-covered renovation external heat insulation construction method for an existing building. Is applied, a bolt hole is drilled in the concrete foundation 1 of an existing building, and a post-installed anchor bolt 6a may be driven.

As for the engagement between the heat insulating composite panel P and the secondary fastener 10, the groove a used for locking the cement board Pa is in the form of opening the upper side of the trapezoidal cross section as shown in FIG. As shown in FIG. 4B, the secondary fastener 10 preferably includes a horizontal piece 10F and an upward protruding piece 12 having a trapezoidal cross section at the front end of the horizontal piece. In this case, the upward protruding piece 12a of the secondary fastener 10 is used. Is fitted into the groove a from the lower end of the panel P, the secondary fastener 10 at the lower end of the panel P can be reliably and easily locked, and the horizontal piece 10F properly supports the lower end of the panel P. To do.

Further, as shown in FIG. 4A, the primary fastener horizontal piece 6F is provided with a longitudinally long hole H6, and as shown in FIG. 4B, the secondary fastener horizontal piece 10F is provided with a laterally elongated hole H10. The secondary fastener 10 is preferably adjusted to the primary fastener 6 by bolting to the primary fastener 6 through the hole H6 and the left and right elongated holes H10.
In this case, even if the surface of the concrete housing Cw is uneven due to the longitudinal movement adjustment of the secondary fastener 10 that locks the lower end of the heat insulating composite panel P with respect to the concrete housing surface by the front and rear elongated holes H6 of the primary fastener 6, Each panel surface can be arranged on the same surface without requiring the work of turning the surface of the concrete frame, which is particularly advantageous for refurbishing the existing building with dry insulation.

  Of course, depending on the forward adjustment amount of the heat insulating composite panel P with respect to the concrete housing surface, a gap a ′ is generated between the panel heat insulating layer Pb and the concrete housing surface Sc as shown in FIGS. 1 (A) and 1 (B). If the lower end of the gap a ′ is closed, the gap a ′ becomes a sealed air layer and functions as an air heat insulating layer, so that there is no problem as an outer heat insulating outer wall.

Further, as shown in FIG. 3 (B), the heat insulating composite panel P has a groove of the cement plate Pa provided with a group of vertical grooves a1 and a2 having a trapezoidal groove a1 at least at both ends on the inner surface. It is preferable to laminate and integrate the molded foam heat insulating material Pb on the a1 and a2 group surfaces in a form that does not block the grooves a1 and a2.
In this case, when the cross-sectional shape of the groove a1 is a shape in which the upper side (short side) of the trapezoid is opened as shown in FIG. 3C, the engagement and fastening with the corresponding protruding piece 12a of the secondary fastener is smooth. Thus, it is advantageous for securing the panel P by the secondary fastener 10.
And if the cross-sectional trapezoidal groove | channel a1 exists in the both ends of the panel P, the secondary fastener 10 will latch each panel in a side edge part, and the panel P group arrangement | positioning at the time of the right-and-left connection of the panel P group will be carried out. Becomes easy.

In the present invention, the secondary fastener 10 includes a pair of left and right upper projecting pieces 12a as shown in FIG. 4B, and the secondary fastener 10 is disposed at the left and right connection part d3 of the heat insulating composite panel P. And it is preferable to lock each upper protrusion piece 12a to the groove | channel a of the cement board edge part of each heat insulation composite panel P of both sides of the connection part d3.
In this case, since the lower ends of the panels on both sides that are locked to the secondary fastener 10 are held at the same level by one secondary fastener horizontal piece 10F and are uniformly held in the front-rear direction by the pair of upper protruding pieces 12a, It is easy to level the panels between the parallel panels.

Further, as shown in FIG. 1A, a gap following sheet 23 is arranged in contact with the concrete foundation 1 in a gap G1 between the upper surface of the primary fastener horizontal piece 6F and the lower surface of the heat insulating layer Pb of the heat insulating composite panel. preferable.
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 a soft lon (Sekisui Chemical Co., Ltd. trade name) of a 2 mm thick polyethylene shape recovery foam, and the soft foam is foamed in 1 day after tensioning, the primary fastener 6, the heat insulation layer Pb lower end and The gap is closed in the form of contact and filling the front surface of the concrete foundation 1.

  Therefore, as shown in FIG. 1B, if the seal 22C is also applied to the interface gap a ′ between the lower end of the panel heat insulating layer Pb and the front surface of the concrete foundation 1, the heat insulation of the heat insulating composite panel P is achieved by the seal 22C and the gap following sheet 23. Even if an interface gap a ′ is generated between the layer Pb and the concrete frame Cw, the interface gap a ′ becomes a sealed air layer and exhibits heat insulation.

As for the attachment of the waist drainer 2, as shown in FIG. 5 (C), a long and angled horizontal piece 15F of the front mounting plate 15 is welded to the lower surface of the front end of the secondary fastener as shown in FIG. 1 (A). As shown in FIG. 5 (D), the vertical piece 16W of the rear mounting plate 16 in a short and angle shape is fixed to the primary fastener vertical piece 6W by welding or the like as shown in FIG. The rising plate 2B of the drainer 2 is fixed to the front mounting plate vertical piece 15W, and the rear end of the waist draining bottom plate 2D is a long horizontal piece 17F of the decorative plate 17 in the form of an angle composed of a horizontal piece 17F and a vertical piece 17W. Is preferably fixed to the rear mounting plate horizontal piece 16F.

In this case, the front mounting plate 15 of the long object and the rear mounting plate 16 of the short object are respectively as shown in FIG. 1A by the secondary fastener 10 and the primary fastener 6 arranged at the left and right connection portions of each panel P. As shown in FIG. 1 (B), the mounting plates 15 and 16 are extended so as to extend in positions where the fasteners are not present. Thus, it can be appropriately held by bonding, screwing or the like at appropriate places.
In addition, since the air communication from the waist drainage air layer H2 to the panel groove a is also guaranteed, the waist drainer 2 having an aesthetic appearance and drainage action guarantees the air flow in the heat insulating composite panel P of the adhesion layer type. Provide the outer wall substructure.

Further, the decorative board 17 is a long object in the form of an angle as shown in FIG. 5E, and the width dimension Wb between the water slice 2C at the front end of the waist drainage and the decorative board vertical piece 17W is the total length in the longitudinal direction of the waist drainage. It is preferable to make it the same size over the whole area.
As shown in FIGS. 1A and 1B, the horizontal piece 17F of the decorative plate 17 has a distance between the front mounting plate 15 and the rear mounting plate 16 adjusted by the longitudinal movement between the secondary fastener 10 and the primary fastener 6. Although it is not uniform, since it is clamped and fixed by the decorative plate horizontal piece 17F and the waist draining bottom plate 2D, it is necessary to ensure the width dimension Wb before and after the rear mounting plate horizontal piece 16F and the decorative plate horizontal piece 17F. It is easy to slide, and the equal dimension setting over the entire length of the width dimension Wb exhibits an aesthetics and a high-class feeling regardless of new construction or renovation of the building, and has a design effect.

1 and 2, the decorative board vertical piece 17W extends below the lower end of the primary fastener vertical piece 6W, and the gap G2 with the foundation concrete 1 is preferably filled with a sealing 22b. .
In this case, the gap G2 is not constant, but the sealing 22b is easy if the backup material 22b ′ is appropriately used.
And while the decorative board 17 improves the external appearance of the area | region ranging from the baseplate 2D of the waist drainer 2 to the concrete foundation 1, the air inflow from the waist drainer 2 to the groove | channel of the heat insulation composite panel P, ie, the ventilation layer a, of the baseplate 2D. Since only the air hole H2 is used, an upward air flow to the panel inner groove a is guaranteed.

In the present invention, the heat insulating composite panel P stretched on the outer surface of the concrete frame is locked to the secondary fastener 10, and the secondary fastener 10 is capable of adjusting the position of the front, rear, left and right with respect to the primary fastener 6 fixed to the concrete foundation. and Rukoto can fastening down, the interface gap a'the heat insulating layer Pb and concrete foundation front Sc of the lower end of the heat insulating composite panel P by the method comprising: closing vacuum-tight manner, the presence or absence of uneven surface of the concrete skeleton surface Regardless, the outer surface of each of the heat insulating composite panels P to be connected in parallel, that is, the surface of the cement board Pa, can be mounted uniformly.

  And since the primary fastener 6 should just be firmly fixed to the concrete foundation 1 with the anchor bolt 6a, the anchor bolt 6a can be embedded in the concrete foundation construction or driven into the existing concrete foundation 1 in the post-construction. It is possible, and this invention can be applied suitably also to a new building and the dry-covering renovation outside heat insulation construction method of the existing building.

  Further, the waist drainer 2 is attached to the secondary fastener 10 via the front attachment plate 15 and attached to the primary fastener 6 via the rear attachment plate 16, and follows the position adjustment of the lower end of the heat insulating composite panel P. It can be mounted uniformly and can be firmly arranged by supporting the front and rear two points.

  And the heat insulation composite panel by having airtightly closed interface gap a 'of panel P lower end and concrete foundation 1 front surface Sc, and enabling ventilation from the air hole H2 of the pelvic water drain bottom board 2D to the groove a. Although P is an adhesive layer type, it is possible to prevent dew condensation at the interface between the heat insulating layer Pb and the cement board Pa, and to suppress a decrease in the heat insulating function due to wetness of the heat insulating layer Pb. The interfacial gap a ′ can be a heat insulating air layer, and the cement plate Pa can also suppress deterioration due to an increase in humidity by aeration in the groove a.

[Insulated composite panel (Fig. 3)]
3A is a partially cutaway perspective view of the panel P, FIG. 3B is a cross-sectional view taken along line BB in FIG. 3A, and FIG. 3C is a partially enlarged view of FIG. is there.
The heat insulating composite panel P is made by mixing and extruding cement, oxalic acid raw material and fiber raw material, extrusion molding cement plate Pa cured by autoclave, and 75mm thick extruded polystyrene foam heat insulating material Pb. It is a thing.

As shown in FIG. 3 (B), the cement plate Pa has 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. Among them, the groove a1 at both ends and 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 a short cross section.
The reason why the two trapezoidal grooves a1 are arranged in the center is that the cement plate Pa is divided into two in the width direction 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. Pb is integrated on the groove arrangement surface of the cement plate Pa with an adhesive so as not to block the groove a, and on the one hand enters the step d1 (10 mm), and on the other hand protrudes the step d2 (20 mm). .
In addition, at the upper end of the panel P, the heat insulating layer Pb is provided with a notch C1 for placing the primary fastener horizontal piece 6F over the entire width, and at the positions corresponding to the cement plate trapezoidal groove a1 at both ends, the universal nut fitting 8 (FIG. 6). The notch C2 for insertion is provided.

[Primary fastener 6 (FIG. 4A)]
As shown in FIG. 4 (A), the 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 12 mm at a position 40 mm from both ends 6S. A pair of 30 mm long front and rear long holes H6 is formed, and a bolt insertion hole with a diameter of 20 mm for fastening an anchor bolt 6a with a diameter of 10 mm to be adjustable in the center of the vertical piece 6W. Drill H60.

[Secondary fastener (Fig. 4 (B))]
As shown in FIG. 4 (B), the secondary fastener 10 has a flat steel horizontal piece 10F having a thickness of 6 mm, a width (W10) of 65 mm, and a length L10 of 210 mm, 40 mm from both ends 10S, and 10b from the rear end 10b. A pair of left and right elongated holes H10 having a width of 12 mm and a length of 30 mm is drilled at a position of 17 mm, and fitted on the upper surface of the front end of the horizontal piece 10F at a position 40 mm from both ends 10S in the cement plate trapezoidal groove a1. A box-shaped upward projecting piece 12a made of steel, 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. Are integrated into the weld.
In this case, a welding hole is drilled in the bottom plate of the upper protruding piece 12a and welded to the horizontal piece 10F so as not to generate a raised meat around the base end of the upper protruding piece 12a.

[Waist drainer (Fig. 5)]
5 (A) is a perspective view of the waist drainer 2, FIG. 5 (B) is a sectional view taken along the line (A) and BB of the waist drainer 2, and FIG. 5 (C) is the front mounting plate 15. FIG. 5D is a perspective view of the rear mounting plate 16, and FIG. 5E is a perspective view of the decorative plate 17.
As shown in FIGS. 5 (A) and 5 (B), 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.

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.

[Installation of heat insulation composite panel P (Figs. 1 and 7)]
The present invention is applied to a dry-coating repair outer heat insulating construction method.
First, the basic concrete 1 and the concrete frame Cw of the existing building are marked with a standard black ink, a hole with a diameter of 10.5 mm is drilled in the concrete frame and the basic concrete, and the post-installed anchor bolt 6a (Sanko Techno Co., Ltd.) ) Product name: All anchor, Okabe Construction Materials Co., Ltd. product name: Nail anchor, etc.) was inserted and the core rod in the center of the diameter of the post-installed anchor 6a was driven with a hammer, and the tip of the post-constructed anchor was opened in the concrete In this state, a tensile load strength of 890 kgf is applied to each anchor bolt 6a.

Next, as shown in FIG. 1A, the bolt insertion hole H60 (hole diameter: 20 mm) of the vertical piece 6W of the primary fastener 6 is fitted into the protruding portion of the anchor bolt 6a, and the washer 6b having a bolt hole with a diameter of 12 mm. Then, the nut 6c is firmly tightened.
In this case, since the hole H60 of the primary fastener has a diameter of 20 mm and the anchor bolt diameter is 10 mm, the anchor bolt 6a and the primary fastener 6 are firmly fastened under necessary vertical and horizontal position adjustment.

The load weight per panel is about 45 kg, and the primary fastener 6 is arranged at the position of the connection joint d3 of each panel P as shown in FIG. 7A, so that each panel P can be properly supported. .
Next, the secondary fastener horizontal piece 10F is placed on the fixed horizontal piece 6F of the primary fastener 6 and the bolt insertion holes H6 and H10 of the fasteners 6 and 10 are overlapped, and a bolt 13a having a diameter of 10 mm is passed through a washer. The secondary fastener 10 is adjusted in position by the front / rear direction long hole H6 and the left / right direction long hole H10 and firmly tightened by the nut 14a via the lower washer 14b.

  Then, as shown in FIG. 1A, 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 base 1 at the rear of the primary fastener horizontal piece 6F. And the trapezoidal grooves a1 at both ends of the heat insulating composite panels P on both sides to be placed side by side are fitted into the secondary fastener upper protruding pieces 12a, and the horizontal fastener pieces 10F of the both sides of the panels P on both sides are fitted. Support the lower end surface.

When rattling occurs in the engagement between the upper protruding piece 12a of the secondary fastener 10 and the cement plate Pa, the face plate 12P and the cement plate Pa of the upper protruding piece 12a are screwed together as shown in FIG. Fasten at.
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 locking the heat insulating composite panel P on the secondary fastener 10, in the region where the primary fastener 6 does not exist, as shown in FIG. 1B, the lower end of the panel heat insulating layer Pb and the concrete foundation 1, or the front surface of the concrete frame When an interfacial gap a ′ is formed between Sc and the seal 22C through the backup material 22C ′, the interfacial gap a ′ does not occur or is small as shown in FIG. A seal 23 'is applied to the boundary between the lower end of Pb and the front surface of the concrete foundation Sc, and air intrusion into the interface gap a' between the lower end of the panel heat insulating layer Pb and the front surface of the concrete foundation 1 is closed.

  Next, as shown in FIG. 1 (A), the horizontal piece 15F of the front attachment plate 15 is placed on the lower surface of the front end of the secondary fastener horizontal piece 10F, and the vertical piece 16W of the rear attachment plate 16 of the short object is placed between the primary fastener vertical pieces 6W. In addition, the waist water rising plate 2B sandwiched the front mounting plate vertical piece 15W in front and the waist water draining bottom plate 2D sandwiched the horizontal piece 17F of the decorative plate 17 so as not to interfere with each washer 6b. In the form, the rear mounting plate horizontal piece 16F is fastened with screws S.

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 seal 22b is applied to a gap G2 between the decorative board vertical piece 17W and the front surface of the concrete foundation 1 through a backup material 22b ′.
In addition, on the front surface of the rising plate of the waist drainer 2, a seal 22a is also provided between the lower end of the panel cement plate Pa and the inclined top plate 2U for draining the waist water via a backup material 22a '.

  Further, as shown in FIG. 6, the upper end of the heat insulating composite panel P has a primary fastener 7 provided with a free nut fitting 8 for sliding a nut on the lower surface of a horizontal piece 7 </ b> F, and projecting pieces 12 a and 12 b above and below the horizontal piece 21. The upper protruding piece 12a uses the secondary fastener 21 disposed on the support base 21a for forming the connection joint d4, and the primary fastener 7 is fastened to the front surface Sc of the concrete frame Cw with the anchor bolt 6a. After the downward projecting piece 12b of the fastener 21 is locked to the upper end of the panel groove a1, the secondary fastener 21 is connected to the primary fastener 7 via the left and right elongated holes H21 of the secondary fastener 21 and the front and rear elongated holes H7 of the primary fastener 7. If the groove a1 at the lower end of the upper panel P is locked to the upper projecting piece 12a of the secondary fastener 21, the upper and lower panel joining can be achieved.

And as shown in FIG. 7, each heat insulation composite panel P should just hit the cement board Pa to the concrete frame Cw with the post-construction anchor 24 in the middle of an up-down direction, and the both-ends part suitable place.
In this case, as shown in FIG. 3B, the right and left connection part d3 of each panel P has a heat insulation layer Pb that enters d1 (10 mm) on one side and protrudes d2 (20 mm) on the other side, as shown in FIG. Therefore, as shown in FIG. 7B, the heat insulation layer Pb contact position of both panels can be closed on the cement plate Pa surface, and the sealing 22d is filled via the backup material 22d 'at the joint d3, d3 → Insulating layer Pb → Inflow of air into the concrete frame can be completely closed, and a decrease in the heat insulating function at the connection part d3 of the panel P can be suppressed.

[Others]
In the present invention, since the insulation composite panel P is locked with the secondary fastener 10 by the upward projecting piece 12a into the groove a, the ventilation from the waist drainer 2 into the heat insulation composite panel P is performed by the upward projecting piece 12a. In the groove a in which is inserted, it is hindered by the protruding piece 12a, but if a bypass groove (not shown) is disposed transversely to the rib R at the boundary between the protruding piece 12a insertion groove a1 and the other groove a, It is possible to vent from the lower side to the upper side on the entire surface of the panel P.
Further, even if an air circulation hole (not shown) is vertically penetrated from the upper protruding piece 12a to the horizontal piece 15F of the front mounting plate 15, ventilation of the entire panel P can be obtained.

In the present invention, when the concrete building is newly constructed, the anchor bolt 6a is embedded in the concrete frame and the concrete foundation together with the concrete placement, so that the heat insulation composite panel P is rational even if the concrete frame is slightly uneven. It can be installed easily and easily, and it is an adhesion layer type heat insulating composite panel, but it can provide a durable outer heat insulating building with air permeability in the panel, but it is a dry coating repair for existing concrete buildings If it is adopted in the external insulation construction method, it can be renovated to a healthy, energy-saving, and durable structure by preventing condensation, as in the case of the new external insulation method.
Therefore, the present invention is a highly practical invention that is extremely advantageous for repairing existing concrete buildings.

It is principal part sectional drawing at the time of producing the interface clearance gap between the panel P and concrete foundation 1 of this invention, Comprising: (A) is a panel latching | locking part, (B) is a figure which shows parts other than a panel latching | locking part It is. It is sectional drawing in case an interface gap does not arise in the panel P and concrete foundation 1 of this invention, Comprising: (A) is a panel latching | locking part, (B) is a figure which shows other than a panel latching | locking part. It is explanatory drawing of the heat insulation composite panel P 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 a perspective view of each primary and secondary fastener of this invention, (A) is a primary fastener, (B) is a figure which shows a secondary fastener. 1A is a perspective view of a waist drainer 2, FIG. 1B is a sectional view taken along line BB of FIG. 1A, and FIG. 1C is a perspective view of a front mounting plate. ) Is a perspective view of the rear mounting plate, and (E) is a perspective view of the decorative plate. It is explanatory drawing of the upper-lower connection part of this invention panel P, Comprising: (A) is a primary fastener perspective view, (B) is a secondary fastener perspective view, (C) is sectional drawing of the connection part between upper and lower panels. It is a cross-sectional view of the right and left connecting portion of the panel of the present invention, (A) is the relationship between the primary fastener 6 and the secondary fastener 10 and the panel connecting joint at the lower end of the outer wall, (B) is the panel joint, C) is a view showing a relationship between the primary fastener 7 and the secondary fastener 21 and the connection joint at the connection portion between the lower end panel and the upper panel. It is explanatory drawing of the prior art example 1, Comprising: (A) is a cross-sectional view, (B) is the B section enlarged view of (A), (C) is a lower end longitudinal cross-sectional view. It is explanatory drawing of the prior art example 2, (A) is a cross-sectional view, (B) is the B section enlarged view of (A), (C) is a lower end longitudinal cross-sectional view without draining, (D) provides draining FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Waist draining 2B Standing board 2C Water section 2D Bottom board 2U Inclined top board 2W Falling board 6,7 Primary fastener 6a Anchor bolt 6b, 13b, 14b Washer 6c, 14a Nut 6F, 7F, 10F, 21F Horizontal piece 6S , 7S, 10S, 21S Side end 6W, 7W Vertical piece 8 Swivel nut fitting 9 On-site foam insulation 10, 21 Secondary fastener

12a Upper protruding piece (protruding piece)
12b downward projecting piece (projecting piece)
13a bolt 15 front mounting plate 15F, 16F, 17F horizontal piece 15W, 16W, 17W vertical piece 16 rear mounting plate 17 decorative plate 22a, 22b, 22c, 22d, 23 'sealing 22a', 22b ', 22c', 22d ' Backup material 23 Gap following sheet 26, S screw

a, a1, a2 groove (breathing layer)
a 'Interface gap (sealed air layer)
C1, C2 Notch Cw Concrete frame d1, d2 Step d3, d4 Connection part (connection joint, joint)
G1, G2 Gap H2 Air hole H6, H7, H10, H21, H60, H70 Bolt insertion hole (bolt hole)
P Insulated composite panel (panel)
Pa Cement board Pb Heat insulation layer (heat insulation board)
R (R1, R2) Rib Sc Front (Concrete housing front)

Claims (9)

A heat-insulating composite panel (P) in which a cement plate (Pa) having a groove (a) for ventilation and a heat-insulating layer (Pb) are layered, and a secondary fastener (latching the lower end of the panel (P)) 10), a primary fastener (6) in which the secondary fastener (10) is bolted so as to be adjustable in the front-rear and left-right directions, and a waist drainer (2) provided with an air hole (H2) disposed below the panel (P) The primary fastener (6) is an angle steel material having a horizontal piece (6F) and a vertical piece (6W), and the anchor bolt (6a) driven into the concrete foundation (1) with the vertical piece (6W) fastened to the heat insulating layer of the lower end of the panel (P) and (Pb) and concrete foundation (1) the interface gap between the front (a') air tightly to closed, waist water draining (2), front The upper part is placed on the bottom surface of the front part of the secondary fastener (10) via the front mounting plate (15). D) the rear in the rear mounting plate primary fasteners through the (16) (6), and was breathable as to fasten the groove (a) from the air hole (H2), a lower end structure of breathable outer insulation exterior walls.
The groove (a) used for locking the cement board (Pa) has a shape in which the upper side of the cross-sectional trapezoid is opened, and the secondary fastener (10) has a horizontal piece (10F) and a trapezoidal cross-section at the front end of the horizontal piece. The lower end structure of the outer wall of Claim 1 provided with the upward protrusion piece (12a)
The primary fastener horizontal piece (6F) includes a longitudinal slot (H6), and the secondary fastener horizontal piece (10F) includes a lateral slot (H10). The longitudinal slot (H6) and the lateral slot (H10). The lower end structure of the outer wall according to claim 1 or 2, wherein the secondary fastener (10) is adjusted to the primary fastener (6) by adjusting the front and rear, left and right via the bracket.
The heat insulating composite panel (P) has a groove (a1, a) of a cement plate (Pa) provided with a group of vertical grooves (a1, a2) whose inner surfaces are at least both ends of a groove (a1) having a trapezoidal cross section. a2) The lower end structure of the outer wall according to any one of claims 1 to 3 , wherein the molded foam heat insulating material (Pb) is laminated and integrated on the group surface so as not to cover the grooves (a1, a2).
The secondary fastener (10) includes a pair of left and right upper projecting pieces (12a), the secondary fastener (10) is disposed on the left and right connection portions (d3) of the heat insulating composite panel (P), and each upper projecting piece ( The lower end structure of the outer wall according to any one of claims 2 to 4 , wherein 12a) is locked to the cement plate end groove (a) of each heat insulating composite panel (P) on both sides of the connecting portion (d3).
The gap follower sheet (23) is disposed in contact with the concrete foundation (1) in the gap (G1) between the upper surface of the primary fastener horizontal piece (6F) and the lower surface of the heat insulating layer (Pb) of the heat insulating composite panel. The lower end structure of the outer wall according to any one of 1 to 5 .
The horizontal piece (15F) of the long and angle-shaped front mounting plate (15) is fixed to the lower surface of the front end of the secondary fastener, and the short vertical piece (16W) of the angle-shaped rear mounting plate (16) is perpendicular to the primary fastener. While fixing to the piece (6W), the rising plate (2B) of the waist drainer (2) is fastened to the vertical piece (15W) of the front mounting plate, and the rear end of the waist drainer bottom plate (2D) is long and angled The bottom end structure of the outer wall according to any one of claims 1 to 6 , wherein the horizontal piece (17F) of the decorative decorative plate (17) is sandwiched and fixed to the rear mounting plate horizontal piece (16F).
The decorative board (17) is a long object in the form of an angle, and the width dimension (Wb) between the water slice (2C) at the front end of the waist drainage and the decorative board vertical piece (17W) extends over the entire length of the waist drainer. The lower end structure of the outer wall according to claim 7 , which is isometric.
Veneer vertical piece (17W) is extended below the primary fasteners vertical piece (6W) lower, and was filled with sealing (22b) in the spacing (G2) between the foundation concrete (1), according to claim 7 Or the lower end structure of the breathable outer wall of 8 .

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