JP2009041266A - Composite panel for outside insulation, and joint structure using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite panel for outside insulation, capable of being also applied to either of an outside insulation method in which the composite panel is used by being mounted on the exterior wall surface of concrete and an outside insulation method in which the composite panel can be used as a form, in common capable of bringing about the high supporting strength of an external facing material etc., and capable of securing the property of ventilation between panels in a joint portion; and to provide a joint structure using the composite panel. <P>SOLUTION: This composite panel 10 for outside insulation comprises a heat insulating board 11 of a rigid foamed plastic, and an external facing substrate material 12 which is provided on the outdoor-side surface of the heat insulating board 11. Thus, the supporting strength of the external facing substrate material 12 can be increased. The ventilation properties are vertically secured by a plurality of vertical ventilation grooves 13 along a vertical direction on the outdoor-side surface of the heat insulating board 11, and at least one upper horizontal ventilation groove 14 and at least one lower horizontal ventilation groove 14 along the horizontal direction on the inside with respect to upper and lower ends. The ventilation properties are secured by the horizontal ventilation groove 14 on the inside of the vertical ventilation groove 13, even if an upper end of the vertical ventilation groove 13 is closed. Additionally, the ventilability can be secured by leaving at least either of the horizontal ventilation grooves 14, even if the vertical dimension of the panel 10 and the like have to be adjusted in construction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a composite panel for outer heat insulation and a joint structure using the same, and can be attached to a building such as reinforced concrete, or can be used as a formwork for placing concrete to perform an outer heat insulation work including a ventilation layer. In this way, the ventilation state between the panels can be secured particularly at the joint.

  2. Description of the Related Art Conventionally, in buildings such as reinforced concrete apartment buildings and office buildings, heat insulation work is being popularized to increase heat insulation by covering the outer wall portion and roof portion in contact with outside air with a heat insulating material for energy saving and comfortable living.

  There are two methods of heat insulation for concrete buildings: an inner heat insulation method in which a heat insulating material is provided on the inside of a wall surface and an outer heat insulation method in which a heat insulating material is provided on the outer surface of the wall surface. It has become.

  In order to increase the efficiency of construction in such an inner heat insulation method, a heat insulating form panel has been developed (see, for example, Patent Document 1), and a plurality of vertical piers and horizontal piers are half-finished on the indoor side surface of a hard foam plastic board. It is configured to be embedded.

Then, the heat-insulated formwork panel to which the vertical piers and cross piers are attached is used as the inner formwork, and after placing the outer formwork by placing the placement space and placing the concrete, only the outer formwork is removed and the inside is removed. The thermal insulation formwork panel is left as it is as a heat insulating material, and the interior basement material is provided using the vertical pier and the horizontal pier to perform the interior construction.
JP 2000-199288 A

  Recently, improvement of heat insulation performance for buildings has been demanded, and instead of the conventional inner heat insulation method, an outer heat insulation method of covering the outside of the wall surface with a heat insulating material tends to be employed.

  Therefore, it is conceivable to use the heat insulating formwork panel that has been used for the inner heat insulation method so far for the outer heat insulation method as it is and also to use it by attaching it to the outer wall surface of concrete. There is a problem like this, and it cannot be used as it is.

  In the above-mentioned inner heat insulation method, interior construction is performed by attaching interior base materials using piers of heat-insulated formwork panels and adhering interior materials such as wallpaper on the interior base materials. In the thermal insulation method, exterior construction is performed by attaching exterior base materials and exterior materials to the piers outside the thermal insulation formwork panels. However, exterior materials, etc. are heavier than interior base materials and interior materials, and must support a large load. There is a problem that can not be.

  Furthermore, depending on the material of the exterior material such as tiles and ceramics, moisture permeability is low compared to the interior material and condensation easily occurs inside the exterior material, and moisture from the concrete is released to the inside of the exterior material, Compared to the inner heat insulation method, there is a problem that it is necessary to significantly increase the air permeability between the heat insulating form panel and the exterior base material or the exterior material.

  In addition, because the exterior base materials and exterior materials are exposed to the outside air, they are affected by thermal expansion and contraction due to solar radiation, and in cold regions, they are affected by freezing and thawing. There is a problem that durability is reduced, and it is necessary to further increase the air permeability between the heat insulation panel and the exterior base material and the exterior material, and in particular, it is necessary to ensure the air permeability of the joint portion between the panels. There's a problem.

  This invention has been made in view of the above-mentioned problems of the prior art, and can be applied to any outer heat insulating method that is used by being attached to the outer wall surface of concrete or also used as a formwork, such as an exterior material. Therefore, an object of the present invention is to provide a composite panel for heat insulation and a joint structure using the same, which has a high support strength and can ensure the air permeability between the panels at the joint.

In order to solve the above-described problems of the prior art, an outer heat insulating composite panel according to claim 1 of the present invention comprises a hard foam plastic heat insulating board and an exterior base material provided on the outdoor side surface of the heat insulating board. A composite panel for outer heat insulation, wherein a plurality of vertical ventilation grooves along the vertical direction are formed on the outdoor side surface of the heat insulation board, and the horizontal direction along the left and right sides inside the upper and lower ends of the outdoor side surface of the heat insulation board. At least one ventilation groove is formed.
According to the composite panel for external heat insulation, the external thermal insulation composite panel is composed of the hard foam plastic thermal insulation board and the exterior base material provided on the outdoor surface of the thermal insulation board, thereby supporting the exterior thermal insulation base material. Increases strength and vents in the vertical direction on the outdoor surface of the heat insulation board by multiple vertical ventilation grooves along the vertical direction and at least one horizontal ventilation groove along the horizontal direction inside the upper and lower ends. As well as ensuring the air permeability, even if the upper end of the vertical ventilation groove is blocked, the air permeability is ensured by the inner lateral ventilation groove. Furthermore, even if it is necessary to adjust the vertical dimension of the panel during construction, air permeability can be secured by leaving at least one lateral ventilation groove.

According to a second aspect of the present invention, there is provided a composite panel for heat insulation according to a second aspect of the present invention, in addition to the structure of the first aspect, a sealing material that seals the horizontal joint at least at the upper end of the vertical ventilation groove on the outdoor side surface of the heat insulation board. This is characterized in that a lateral mounting groove for mounting a sheet member for preventing intrusion into the vertical ventilation groove is formed.
According to this composite panel for outer heat insulation, a horizontal member in which a sheet member for preventing the sealing material sealing the horizontal joint from entering the vertical air flow groove is attached to at least the upper end of the vertical air flow groove on the outdoor surface of the heat insulation board. By forming the mounting groove, when the sealing member is mounted in the horizontal mounting groove and the next panel is connected to it, the surface of the vertical ventilation groove is covered and the infiltration of the sealing material at the joint can be prevented, and air permeability Can be secured.

Furthermore, in the composite panel for external heat insulation according to claim 3 of the present invention, in addition to the configuration according to claim 1 or 2, the vertical joint is sealed at least at one end of the lateral ventilation groove on the outdoor side surface of the heat insulation board. A vertical mounting groove for mounting a sheet member for preventing the sealing material from entering the horizontal ventilation groove is formed.
According to this composite panel for external heat insulation, a longitudinal member is attached to which at least one end of the lateral ventilation groove on the outdoor surface of the insulation board is attached with a sheet member that prevents the sealing material that seals the vertical joint from entering the lateral ventilation groove. By forming the mounting groove, when the sealing member is mounted in the vertical mounting groove and the next panel is connected to the side, the surface of the horizontal ventilation groove is covered, and the infiltration of the sealing material at the joint can be prevented. Can be secured.

The joint structure of the composite panel for external heat insulation according to claim 4 of the present invention is the composite panel for external heat insulation according to claim 1 above and below the horizontal joint part and / or via the vertical joint part. This sheet is arranged on the left and right, and a sheet member for preventing the intrusion of the sealing material is attached to the surface of the vertical ventilation groove above and below the horizontal joint and / or the surface of the horizontal ventilation groove on the left and right of the vertical joint. Filling the sealing material via the member to allow the vertical ventilation grooves to communicate with each other vertically to form a horizontal joint portion, and / or filling the sealing material via this sheet member to allow the horizontal ventilation grooves to communicate with the left and right. Thus, a vertical joint is formed.
According to the joint structure of the outer heat insulating composite panel, the outer heat insulating composite panel according to claim 1 is arranged vertically through the horizontal joint part, or arranged left and right through the vertical joint part, When arranging these upper and lower horizontal joints and left and right vertical joints in combination, by attaching a sheet member to the surface of the vertical ventilation groove and the surface of the horizontal ventilation groove, it is possible to prevent the infiltration of the sealing material, The vertical ventilation grooves communicate with each other in the vertical direction to form a horizontal joint portion, or the horizontal ventilation grooves communicate with each other in the horizontal direction to form the vertical joint portion, thereby ensuring the air permeability of the joint portion.

Furthermore, the joint structure of the composite panel for external heat insulation according to claim 5 of the present invention uses the composite panel for external heat insulation according to claim 2 in addition to the structure according to claim 4, A heat-insulating composite panel is arranged above and below the horizontal joint, and a sheet member that prevents the sealing material from entering is installed in the horizontal mounting groove formed on the surface of the vertical ventilation groove above and below the horizontal joint. The sheet material is filled with a sealing material, and the vertical ventilation grooves are communicated with each other vertically to form a horizontal joint.
According to the joint structure of the outer heat insulating composite panel, the outer heat insulating composite panel according to claim 2 is used, and the sheet member is mounted in the horizontal mounting groove at the upper and lower joint portions, thereby allowing the sealing material to enter. This makes it possible to prevent the vertical ventilation grooves from communicating with each other up and down to form a horizontal joint portion, thereby ensuring air permeability of the joint portion.

Moreover, the joint structure of the composite panel for external heat insulation according to claim 6 of the present invention uses the composite panel for external heat insulation according to claim 3 in addition to the configuration according to claim 4 or 5, The outer heat insulating composite panels are arranged on the left and right sides through the vertical joints, and seat members that prevent the sealing material from entering the vertical mounting grooves formed on the surfaces of the left and right lateral ventilation grooves of the vertical joints are mounted. A vertical joint is formed by filling a sealing material through the sheet member and connecting the lateral ventilation grooves to the left and right.
According to the joint structure of the outer heat insulating composite panel, the outer heat insulating composite panel according to claim 3 is used, and in the left and right joint portions, the sheet member is mounted in the vertical mounting groove, thereby allowing the sealing material to enter. It is possible to prevent the lateral ventilation grooves from communicating with each other to the left and right to form a vertical joint, thereby ensuring the air permeability of the joint.

  According to the composite panel for heat insulation according to claim 1 of the present invention, the heat insulation board made of hard foam plastic and the exterior base material provided on the outdoor side surface of the heat insulation board constitute the heat insulation composite panel. Thus, the support strength by the exterior base material can be improved, and a plurality of vertical ventilation grooves along the vertical direction on the outdoor side surface of the heat insulation board and at least one horizontal each along the horizontal direction inside the upper and lower ends. By forming the ventilation groove, the air permeability can be secured in the vertical direction, and even if the upper end of the vertical ventilation groove is blocked, the air permeability can be secured by the inner lateral ventilation groove. Furthermore, even if it is necessary to adjust the vertical dimension of the outer heat insulating composite panel during construction, the air permeability of the entire panel surface can be secured by leaving at least one of the lateral ventilation grooves.

  According to the composite panel for external heat insulation according to claim 2 of the present invention, at least the upper end of the vertical ventilation groove on the outdoor side surface of the heat insulation board, the sealing material that seals the horizontal joint portion enters the vertical ventilation groove. Since the horizontal mounting groove for mounting the sheet member is formed, the surface of the vertical ventilation groove can be covered by attaching the seal member to the horizontal mounting groove and connecting the next panel on it. By preventing the sealing material from entering, air permeability can be ensured.

  Further, according to the composite panel for external heat insulation according to claim 3 of the present invention, the sealing material that seals the vertical joint at at least one end of the lateral ventilation groove on the outdoor side surface of the insulation board enters the lateral ventilation groove. Since the vertical mounting groove for mounting the sheet member is formed, the surface of the horizontal ventilation groove can be covered by installing the seal member in the vertical mounting groove and connecting the next panel next to it. By preventing the sealing material from entering, air permeability can be ensured.

  According to the joint structure of the composite panel for external heat insulation according to claim 4 of the present invention, the composite panel for external heat insulation according to claim 1 is arranged vertically via the horizontal joint part, or the vertical joint part. Since the sheet member is attached to the surface of the vertical ventilation groove and the surface of the horizontal ventilation groove when arranging the left and right via the left and right, and when arranging the upper and lower horizontal joint portions and the left and right vertical joint portions in combination, The sealing material can be prevented from entering, and the vertical ventilation grooves can be communicated with each other to form a horizontal joint, and the horizontal ventilation grooves can be communicated with each other to form a vertical joint. And the air permeability of the joint can be secured.

  Furthermore, according to the joint structure of the composite panel for outer heat insulation according to claim 5 of the present invention, the sheet member is mounted in the lateral mounting groove at the upper and lower joint portions using the composite panel for outer heat insulation according to claim 2. Thus, the sealing material can be prevented from entering, and the vertical ventilation grooves can be communicated with each other in the vertical direction to form the horizontal joint portion to ensure the air permeability of the joint portion.

  Moreover, according to the joint structure of the composite panel for external heat insulation according to claim 6 of the present invention, the composite panel for external heat insulation according to claim 3 is used, and the sheet member is mounted in the vertical mounting groove at the left and right joint parts. Therefore, the sealing material can be prevented from entering, and the horizontal ventilation grooves can be connected to the left and right to form the vertical joint portion to ensure the air permeability of the joint portion.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 5 relate to an embodiment of a composite panel for outer heat insulation and a joint structure using the same according to the present invention, and FIG. 1 is a front view and a side view in which a part of the composite panel for outer heat insulation is cut out. 2 is a schematic perspective view of the connection state at the joint portion, FIG. 3 is an end view of the connection state at the vertical joint portion in the normal state and the panel cut state, and FIG. 4 is a connection state at the horizontal joint portion. FIG. 5 is an explanatory view of the communicating state of the ventilation layer.

This composite panel for external insulation is used as a composite panel for attaching external insulation and exterior base materials by attaching to the concrete surface of concrete buildings, or as a concrete formwork for concrete buildings, It can also be used as a composite panel in which the exterior base material and the heat insulation board are attached to the outer wall surface of the concrete by placing the frame and the assembled concrete as it is, and between the exterior base material and the heat insulation board. An air-permeable layer is formed on the surface.
In the following description, an example of a composite panel for heat insulation that is used by being attached to the existing concrete surface side by side vertically and horizontally via joints will be described as an example.

  For example, as shown in FIG. 1, the outer heat insulating composite panel 10 includes a hard foam plastic heat insulation board 11 and an exterior base material 12 provided on the outdoor side of the hard foam plastic heat insulation board 11. It is. A plurality of vertical ventilation grooves 13 extending in the vertical direction are formed on the surface of the heat insulating board 11 on the outdoor side, and one horizontal ventilation groove 14 extending in the left-right direction is formed on the upper and lower sides inside the upper and lower ends. It is. Further, the upper and lower and left and right peripheral ends of the exterior base material 12 are slightly smaller in the vertical and horizontal directions than the heat insulating board 11 in order to form the horizontal joint portion 15 and the vertical joint portion 16. The joint portion 16 has a joint width of about 10 mm.

A hard foam plastic heat insulation board 11 constituting the composite panel 10 for heat insulation is a foam plastic board formed of a thermoplastic resin or a thermosetting resin material having a high heat insulation effect. For example, polystyrene foam, polyurethane foam, polyethylene Foam, polypropylene foam, phenol foam and the like are used.
In particular, as the heat insulation board 11 made of hard foam plastic, since it is attached to the outer surface of concrete as an external heat insulation construction method, it is preferable that the moisture content contained in the concrete can be permeated and is excellent in moisture permeability. Therefore, it is preferable to use a rigid polystyrene foam bead method in which the longitudinal ventilation groove 13 and the lateral ventilation groove 14 can be easily processed.

  This beaded hard polystyrene foam does not allow water to pass through, but allows water vapor (humidity) to pass through. It is superior in moisture permeability compared to the existing one.

  As the heat insulation board 11 of this hard foam plastic, those having a density of 20 kg / m 3 or more are preferable in terms of thermal conductivity, more preferably those having a density of 27 kg / m 3 or more, and a thickness of 25 to 100 mm, Preferably, the thickness needs to be 40 to 60 mm from the point of next-generation energy saving.

  In such a heat insulation board 11 made of rigid foam plastic, a plurality of vertical ventilation grooves 13 are formed along the vertical direction in a state of being built on the surface which becomes the outdoor side, and the horizontal direction along the horizontal direction is formed inside the upper and lower ends. One ventilation groove 14 is formed, and the vertical ventilation groove 13 and the horizontal ventilation groove 14 change the bonding area with the exterior base material 12, thereby changing the adhesive strength.

  For example, when a beaded foamed styrene board is used as the heat insulation board 11 and a fiber-mixed inorganic board is used as the exterior base material 12, the bond strength varies slightly depending on the density of the heat insulation board 11, but an average bond strength of 3.0 kg / cm 2. Can be secured. On the other hand, wind pressure, vertical or horizontal stress at the time of an earthquake, weight of an exterior material, and the like are applied to the composite panel 10 for outer heat insulation, so that a load strength of at least 1000 kg / m 2 is required in consideration of a safety factor. Become. In addition, when combined with the outer formwork, the side pressure at the time of placing concrete is about 6 ton / m2.

  Therefore, in the outer heat-insulating panel 10 combined with a beaded foam styrene board as the heat-insulating board 11 and the fiber-mixed inorganic board as the exterior base material 12, the bending elasticity as the bonded structure is important. In order to make the deflection 1.0 mm or less, the effective adhesion area other than the vertical ventilation groove 13 and the horizontal ventilation groove 14 cannot be made about 33% or less.

Therefore, in this composite panel 10 for heat insulation, the size is, for example, 900 mm in length, 900 mm in width, 35 mm in thickness, one groove width of the vertical ventilation groove 13 is 20 mm, and the depth is 10 mm. At the same time, by forming two lateral ventilation grooves 14 with a width of 20 mm and a depth of 10 mm, an effective adhesion area of about 75% is secured.
In addition, about the magnitude | size of the vertical / horizontal ventilation groove | channels 13 and 14, a groove width should just be 10-100 mm and depth should be 5-25 mm. Further, the lateral ventilation grooves 14 are formed along the left-right direction inside the upper and lower ends, but the number is not limited to two, and the number is further increased if the effective adhesion area is not less than 33%. You may do it.

Next, since the exterior base material 12 of the outer heat insulating composite panel 10 is provided on the outdoor side of the hard foam plastic heat insulation board 11, the exterior base material 12 attached to the outside with respect to the inner heat insulation board 11 It is preferable to use a material whose moisture permeability coefficient of the exterior material increases toward the outside.
Many commercially available panels that can be used as an exterior base material have a moisture permeability coefficient smaller than that of the polystyrene foam of the bead method, so that a panel having a moisture permeability coefficient of at least 100 ng / m 2 Spa (500 ng / m 2 Spa) is selected. Good, preferably 200 ng / m 2 Spa or more.
On the other hand, from the relationship with the exterior material, for example, the exterior coating material has a moisture permeability coefficient of about 500 ng / m 2 Spa, and the exterior base material has a moisture permeability coefficient of 500 ng / m 2 Spa or less, preferably 400 ng / m 2 Spa. The following are preferred.
Therefore, the exterior base material 12 used in combination with the composite panel 10 for heat insulation preferably has a moisture permeability coefficient of about 200 to 400 ng / m 2 Spa, for example, a lightweight mortar plate (moisture permeability coefficient) as the exterior foundation material 12. : 243 ng / m2sPa) and a coating material (moisture permeability coefficient: 500 ng / m2sPa) may be used as the exterior material. The exterior base material 12 has a thickness of 10 to 16 mm and a specific gravity of 0.9 to 1.1. An inorganic board such as a lightweight mortar board or a fiber-mixed cement board may be used.

  Furthermore, in this exterior base material 12, in order to form the horizontal joint portion 15 and the vertical joint portion 16 at the upper and lower and left and right circumferential ends, it is made smaller than the heat insulating board 11, for example, by making it 5 mm or more smaller, In a connected state, a joint width of 10 mm or more is ensured. Here, the joint width is 10 mm, and each end is made 5 mm smaller.

  In this outer heat insulating composite panel 10, when connecting through the horizontal joint portion 15 and the vertical joint portion 16, it is necessary not to block the vertical ventilation groove 13 and the horizontal ventilation groove 14 with the sealing material 17, As shown in FIG. 1 and FIG. 2, the lateral mounting in which the seat member 18 is mounted on the end surface of the vertical ventilation groove 13 that is vertically connected by the horizontal joint portion 15, that is, the upper and lower ends of the outdoor side surface of the heat insulation board 11. A groove 19 is formed, and the nine vertical ventilation grooves 13 communicate with each other and are not opened at the left and right ends. Therefore, one continuous groove is formed by the lateral mounting grooves 19 and 19 between the outer heat insulating composite panels 10 and 10 connected to each other. Similarly, vertical mounting grooves 20 are formed on the end surface of the horizontal ventilation groove 14 connected to the left and right at the vertical joint 16, that is, on the left and right ends of the outdoor side surface of the heat insulation board 11. Each of 14 is formed independently. Therefore, one continuous groove is formed in each of the upper and lower sides by the vertical mounting grooves 20 and 20 between the outer heat insulating composite panels 10 and 10 connected to the left and right.

  The sheet member 18 mounted in the horizontal mounting groove 19 and the vertical mounting groove 20 not only prevents the air permeability from being hindered by the sealing material 17 entering and closing the vertical ventilation groove 13 or the horizontal ventilation groove 14. Even if the sealing material 17 is bonded to both side surfaces of the horizontal joint portion 15 or the vertical joint portion 16, it does not adhere to the bottom surface, so that the thermal expansion of the exterior base material 12 of the outer heat insulating composite panels 10, 10 This prevents the sealing material 17 from being cracked or damaged due to heat shrinkage or the like.

  The sheet member 18 may be any member as long as it does not adhere to the sealing material 17 and does not bend due to the filling pressure of the sealing material 17 by a filling gun, and is used for sealing a joint portion of a normal outer wall panel or the like. A tape-like film (commonly known as a bond breaker) having a thickness of about 0.05 mm cannot be used by swelling in the ventilation grooves 13 and 14 due to insufficient rigidity. For example, it is made of polypropylene (PP) The thickness of the sheet needs to be 0.5 mm or more, and a sheet having a thickness of 1.0 mm or more is preferable, although it varies depending on the groove width of the ventilation grooves 13 and 14 and the filling pressure of the sealing material 17.

  The seat member 18 can be mounted if the sheet width is smaller than the total width of the two horizontal mounting grooves 19 and 19 to be connected and the total width of the two vertical mounting grooves 20 and 20 to be connected. In some cases, the panel is cut to adjust the size of the composite panel 10 for heat insulation. In this case, the sheet member 18 is attached only to one attachment groove, and therefore FIG. 3B and FIG. As shown in b), by setting the sheet width to be able to cover the surface of the joint material 21 applied to the cut panel 10 ′ cut in order to ensure the joint width, the sheet member 18 having the same specification is used in any case. It can be used.

Next, the joint structure constructed | assembled using the composite panel 10 for external heat insulation comprised in this way is demonstrated with reference to FIGS.
When the outer heat insulating composite panel 10 is connected up and down, the two outer heat insulating composite panels 10 and 10 are connected via the horizontal joint portion 15, and the air permeability of the upper and lower vertical ventilation grooves 13 and 13 is connected. Need to be secured. Therefore, as shown in FIGS. 2 and 3, the lower outer composite panel 10 is attached with a concrete screw 22 or the like, and then the sheet member 18 is attached to the lateral attachment groove 19 at the upper end. After the upper outer heat insulating composite panel 10 is dropped and the sheet member 18 protruding upward is inserted into the lateral mounting groove 19 at the lower end, the upper outer heat insulating composite panel 10 is inserted into the concrete screw 22. Install with.
Then, the sealing material 17 is filled in the horizontal joint portion 15, and the construction of the horizontal joint portion 15 is completed in a non-bonded state by the sheet member 18 at the joint bottom portion.

For example, when a cut panel 10 ′ obtained by cutting the upper outer heat insulating composite panel is used for dimension adjustment, as shown in FIG. 3B, the lower part of the outer heat insulating composite panel is heat-insulated to a predetermined size. After cutting so that the cut surfaces of the board 11 and the exterior base material 12 become flat surfaces, a joint material 21 made of, for example, polystyrene foam is used to make the joint width constant on the heat insulating board 11 on the cut surface of the cut panel 10 ′. Adhere.
Then, after attaching the lower outer heat insulating composite panel 10 with concrete screws 22 or the like, the sheet member 18 is attached to the lateral attachment groove 19, and the upper cut panel 10 'is built so as to contact the concrete. Secure with screws 22 or the like.
Then, the entire joint width of the horizontal joint portion 15 including the surface of the joint material 21 is covered with the sheet member 18, and the upper cut panel 10 ′ and the seal member 18 are attached without interfering with each other, The horizontal joint portion 15 can be constructed by filling the sealing material 17 in the same manner as in a normal case.

  By repeating such vertical mounting of the outer heat insulating composite panels 10 and the cut panel 10 ′, the construction of the exterior base material 12 and the outer heat insulation work are completed.

On the other hand, when the outer heat insulating composite panel 10 is connected to the left and right, the two outer heat insulating composite panels 10 and 10 are connected via the vertical joints 16, and the left and right lateral ventilation grooves 14, 14 are connected. It is necessary to ensure air permeability. Therefore, as shown in FIGS. 2 and 4, the left outer composite panel 10 is attached with a concrete screw 22 or the like, and then the sheet member 18 is attached to the vertical attachment groove 20 on the right end. Then, the sheet member 18 protruding rightward is inserted into the leftmost vertical mounting groove 20 so as to press and connect the right outer heat insulating composite panel 10, and then the right outer heat insulating composite panel 10. Is attached with concrete screws 22 or the like.
Then, the sealing material 17 is filled into the vertical joint portion 16, and the construction of the vertical joint portion 16 is completed in a non-adhered state by the sheet member 18 at the joint bottom portion.

Further, for example, when using a cut panel 10 ′ obtained by cutting the right outer thermal insulation composite panel for dimension adjustment, the left part of the outer thermal insulation composite panel is set to a predetermined dimension as shown in FIG. After cutting so that the cut surfaces of the heat insulation board 11 and the exterior base material 12 are flat surfaces, the joint material 21 made of, for example, polystyrene foam is bonded and cut to make the joint width constant on the heat insulation board 11 on the cut surface. It is set as panel 10 '.
Then, after the left outer thermal insulation composite panel 10 is attached with the concrete screw 22 or the like, the sheet member 18 is installed in the vertical installation groove 20, and the right cut panel 10 'is installed so that the concrete screw is installed. Fix with 22 etc.
Then, the entire joint width of the vertical joint portion 16 including the surface of the joint material 21 is covered with the sheet member 18, and the right cut panel 10 ′ and the seal member 18 are attached without interference, The vertical joint 16 can be constructed by filling the sealing material 17 in the same manner as in a normal case.

  By repeating such mounting in the left-right direction with the composite panels 10 for external heat insulation or the cut panel 10 ', the construction of the exterior base material 12 and the external heat insulation construction are completed.

  According to such a composite panel 10 for external heat insulation, by adhering the heat insulation board 11 and the exterior base material 12, it is possible to secure the support strength, and easily by the vertical ventilation grooves 13 and the horizontal ventilation grooves 14. A ventilation layer can be formed.

  Further, by using this composite panel for heat insulation 10, as shown in FIG. 5, at least the top and bottom of the composite panel 10 for heat insulation even if there are openings 23 such as windows and protrusions 24 such as wrinkles on the concrete wall surface. The ventilation grooves 13 and 14 can be communicated with each other by the lateral ventilation groove 14 provided in either of them, and air permeability can be ensured. Further, even when a cut panel 10 ′ obtained by cutting a part of the outer heat insulating composite panel 10 is used to adjust the dimensions, the ventilation grooves 13 and 14 can be communicated to ensure air permeability.

  By providing such a ventilation layer, the influence of freezing / thawing of the exterior base material 12 and the exterior material attached to the exterior base material 12 can be reduced, and the influence of thermal expansion / contraction caused by solar radiation can be reduced. It is possible to improve the durability of the composite panel 10 for heat insulation.

  In addition, according to the joint structure of the composite panel for outer heat insulation, the continuity of the vertical ventilation groove 13 and the horizontal ventilation groove 14 can be secured even when connected by the horizontal joint part 15 and the vertical joint part 16, The sealing material 17 can be brought into a non-adhered state at the joint bottom portion by the sheet member 18, and cracking or breakage of the sealing material 17 due to thermal expansion or thermal contraction of the exterior base material 12 of the outer heat insulating composite panel 10 is prevented. And the sealability and durability of the joint can be improved.

  In the above embodiment, the sheet member is attached by forming a horizontal mounting groove or a vertical mounting groove for mounting the sheet member on the outdoor side surface of the heat insulation board of the composite panel for outer heat insulation. The mounting groove is omitted, or both mounting grooves are omitted, and the sheet member is directly bonded to prevent the adhesion of the sealing material to the joint base and to prevent the ventilation groove from being blocked. Also good.

  Moreover, although the case where the composite panel for external heat insulation is attached to an existing concrete wall surface has been described as an example in the above embodiment, it may be used as a formwork combined panel used also as a formwork for concrete placement. In this case, by using it as a composite panel for outer heat insulation that is long in the up-down direction for one placement height, it is possible to reduce the horizontal joint portion and facilitate the construction. Furthermore, if a joint is formed by forming a stepped portion at the joint where the composite panel for outer heat insulation is connected, it will be installed easily by preventing leakage of the concrete to be cast. can do.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view, side view, and bottom view which partly cut out the composite panel for external heat insulation of this invention and the composite panel for external heat insulation concerning one embodiment of the joint structure using the same. It is a schematic perspective view of the connection state in the joint part concerning one Embodiment of the composite panel for outer heat insulation of this invention, and the joint structure using the same. It is the end view at the time of the normal state of the connection state in the vertical joint part concerning one Embodiment of the composite panel for outer heat insulation of this invention, and a joint structure using the same, and a panel cut. It is the end view at the time of the normal state of the connection state in the horizontal joint part concerning one Embodiment of the composite panel for outer heat insulation of this invention, and a joint structure using the same, and a panel cut. It is explanatory drawing of the communicating state of the ventilation layer concerning one Embodiment of the composite panel for outer heat insulation of this invention, and the joint structure using the same.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 External insulation composite panel 11 Hard foam plastic heat insulation board 12 Exterior base material 13 Vertical ventilation groove 14 Horizontal ventilation groove 15 Horizontal joint part 16 Vertical joint part 17 Sealing material 18 Sheet member 19 Horizontal installation groove 20 Vertical installation groove 21 Joint material 22 Concrete screw 23 Opening 24 Projection

Claims (6)

A composite panel for heat insulation comprising a heat insulation board of hard foam plastic and an exterior base material provided on the outdoor side surface of the heat insulation board,
A plurality of vertical ventilation grooves along the vertical direction are formed on the outdoor side surface of the heat insulation board, and at least one horizontal ventilation groove along the left and right direction is formed inside the upper and lower ends of the outdoor side surface of the heat insulation board. A composite panel for heat insulation.   A horizontal mounting groove for mounting a sheet member for preventing a sealing material that seals the horizontal joint portion from entering the vertical ventilation groove is formed at least at the upper end of the vertical ventilation groove on the outdoor side surface of the heat insulation board. The composite panel for outer heat insulation according to claim 1, characterized in that:   A vertical mounting groove for mounting a sheet member for preventing the sealing material sealing the vertical joint from entering the horizontal ventilation groove is formed on at least one end of the horizontal ventilation groove on the outdoor side surface of the heat insulation board. The composite panel for outer heat insulation according to claim 1 or 2, characterized in that:   The outer heat insulating composite panel according to claim 1 is arranged vertically via a horizontal joint and / or left and right via a vertical joint, on the surface of the vertical ventilation groove above and below the horizontal joint, and / Or a sheet member for preventing the intrusion of the sealing material is attached to the surfaces of the left and right lateral ventilation grooves of the vertical joint, and the vertical ventilation grooves are communicated with each other by filling the sealing material through the sheet member. A joint for an outer heat insulating composite panel comprising a horizontal joint and / or a vertical joint formed by filling a sealing material through the sheet member and connecting the lateral ventilation grooves to the left and right. Construction.   The composite panel for outer heat insulation according to claim 2 is used, and the upper and lower composite panels for heat insulation are arranged up and down via a horizontal joint portion on the upper and lower vertical ventilation grooves on the surface of the horizontal joint portion. A sheet member that prevents the intrusion of the sealing material is mounted on the formed horizontal mounting groove, and the vertical aeration groove is communicated with each other by filling the sealing material through the sheet member to form a horizontal joint portion. The joint structure of the composite panel for outer heat insulation according to claim 4.   The composite panel for external heat insulation according to claim 3 is used, and the left and right composite panels for thermal insulation are arranged on the left and right via vertical joints, and the left and right lateral ventilation grooves of the vertical joints are formed on the surfaces of the horizontal ventilation grooves. A sheet member that prevents the intrusion of a sealing material into the formed vertical mounting groove is mounted, and the vertical ventilation portion is configured by filling the sealing material through the sheet member and communicating the lateral ventilation grooves to the left and right. The joint structure of the composite panel for outer heat insulation according to claim 4 or 5, characterized in that

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