JP2020007716A - Heat insulation structure and building - Google Patents

Abstract

To provide a heat insulation structure of a projected corner portion, which is constituted of an exterior wall and a roof of a building, capable of improving heat insulation effect of a whole building, by increasing the heat insulation effect of the projected corner portion, and the building.SOLUTION: A heat insulation structure 1 of a projected corner portion 10 is constituted of an exterior wall 20 and a roof 30 of a building 100. The roof 30 has a heat insulation layer 34a, and the exterior wall 20 has a heat insulation layer 22 arranged at the indoor side. The heat insulation layer 22 of the exterior wall 20 is continuously connected to the insulation layer of the roof by a heat insulation material passing through the indoor side of a skeleton 40 supporting the exterior wall 20 and the roof 30 and extending to a surface of the heat insulation material of the most indoor side in the heat insulation layer 34a of the roof 30.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a heat insulating structure at an outer corner formed by an outer wall and a roof of a building, and a building provided with the heat insulating structure.

  2. Description of the Related Art Conventionally, in order to enhance the heat insulating performance of a building, a heat insulating layer made of various heat insulating materials is formed on the indoor side of an outer wall (outer peripheral wall) that covers a skeleton from the outside.

  For example, Patent Literature 1 discloses a heat insulating layer including a heat insulating material disposed along an inner surface of an outer wall panel that covers a frame such as a beam from the outside and a heat insulating material disposed in a space between upper and lower flanges of the beam. The provided building is disclosed. With such a configuration, the heat insulation of the outer wall of the building can be improved.

JP-A-5-98720

  However, in Patent Literature 1 described above, no particular consideration is given to the heat insulating structure of the corner formed by the outer wall and the roof, and there is room for improvement in the heat insulating properties of the building.

  Therefore, the present invention provides a heat-insulating structure for a corner that can improve the heat insulation of the whole building by increasing the heat-insulating property of the corner that is formed by the outer wall and the roof of the building, and a building. The purpose is to provide.

The present invention is a heat insulating structure at an outer corner composed of an outer wall and a roof of a building,
The roof comprises an insulating layer,
The outer wall includes a heat insulating layer disposed on the indoor side,
The heat insulating layer of the outer wall is continuous with the heat insulating layer of the roof by a heat insulating material that passes through the indoor side of the building supporting the outer wall and the roof and extends to the surface of the heat insulating material closest to the indoor side of the heat insulating layer of the roof. It is characterized by the fact that the connection is made.

In the heat insulation structure of the present invention, the roof includes a base panel, and a roof panel having a plurality of plate members supported by the base.
It is preferable that at least a part of the plurality of plate members constitute the heat insulating layer.

  Further, in the heat insulating structure of the present invention, it is preferable that the base has an opening through which a heat insulating material passing through the indoor side of the frame can pass.

Further, in the heat insulating structure of the present invention, the base is configured by a frame-shaped frame,
It is preferable that a reinforcing brace is attached to the frame.

  In the heat insulation structure of the present invention, it is preferable that the brace is formed of a flat long plate.

  A building according to the present invention includes any one of the above-described heat insulating structures.

  ADVANTAGE OF THE INVENTION According to this invention, the heat insulation structure of the corner which can improve the heat insulation of the whole building by raising the heat insulation of the corner which consists of the outer wall of a building and a roof, and a building, Can be provided.

FIG. 2 is a vertical cross-sectional view showing a heat-insulating structure at a protruding corner as one embodiment of the present invention. FIG. 2 is a perspective view illustrating an upper connecting member and a lower connecting member of FIG. 1. It is a perspective view for demonstrating the frame and brace in the roof panel of FIG. It is sectional drawing of a part of roof as a reference example shown for comparison. FIG. 2 is a sectional view schematically showing a part of the roof of FIG. 1.

  Hereinafter, an embodiment of a heat insulating structure according to the present invention and a building including the heat insulating structure will be described with reference to the drawings. The same reference numerals are given to the components common to the drawings.

  FIG. 1 is a sectional view of a building 100 including a heat insulating structure 1 according to one embodiment of the present invention. The heat insulating structure 1 according to the present embodiment is provided at a protruding corner portion 10 formed by an outer wall 20 and a roof 30 of a building 100.

  Here, an overall configuration of a building 100 as an example of the present invention will be described. The building 100 can be, for example, a two-story house having a steel frame. That is, the protruding corner portion 10 of the present example is formed at a portion where the outer wall 20 and the roof 30 at the second floor intersect. The building 100 includes, for example, a foundation structure fixed to the ground and an upper structure fixed to the foundation structure.

  The foundation structure is located below the upper structure and supports the skeleton, and may be, for example, a reinforced concrete cloth foundation having a T-shaped cross section. The upper structure is provided with a skeleton (a skeleton) composed of a plurality of columns and a plurality of beams erected between the columns, an outer wall 20 arranged on an outer peripheral side of the skeleton, and arranged on the beams of the skeleton. Floor and roof 30 of each floor.

  The outer wall 20 includes an outer wall panel 21 as an exterior material, a heat insulating material 22 constituting a heat insulating layer, and an interior material. In FIG. 1, the interior materials are omitted for convenience of explanation.

  As the outer wall panel 21, for example, a lightweight cellular concrete (hereinafter, referred to as “ALC”; “ALC” is an abbreviation of “autoclaved light weight concrete”), metal-based or ceramic-based siding, and extrusion A molded cement board, a wooden panel or the like can be used. The outer skin of the outer wall 20 can be formed by connecting the outer wall panel 21 to the periphery of the skeleton.

  Further, as the heat insulating material 22, for example, a fiber heat insulating material such as rock wool can be used in addition to a panel heat insulating material made of a foamed resin material such as phenol foam, polystyrene foam, and urethane foam. By arranging the heat insulating material 22 on the indoor side of the outer wall panel 21 along the inner surface of the outer wall panel 21, a heat insulating layer can be formed on the outer wall 20. As the interior material, for example, a gypsum board can be used, and by connecting the interior material to the indoor side of the outer peripheral portion of the skeleton, the inner skin layer can be formed.

  In this example, the heat insulating layers 23 and 24 arranged so as to pass through the indoor side of the beam 40 continuously connect the heat insulating layer of the outer wall 20 and the heat insulating layer of the roof 30. Specifically, the heat insulating material 23 located below the beam 40 and the heat insulating material 24 located on the opposite side of the outer wall panel 21 with respect to the beam 40 are arranged so as to surround the indoor side of the beam 40. The heat insulating material 22 forming the heat insulating layer of the outer wall 20 and the first plate member 34 a forming the heat insulating layer of the roof 30 are continuously connected by heat insulating materials 23 and 24. As the heat insulating materials 23 and 24, for example, a fiber heat insulating material such as rock wool can be used in addition to a panel-shaped heat insulating material made of a foamed resin material such as phenol foam, polystyrene foam, and urethane foam.

  The heat insulating material 24 extends to the surface of the heat insulating material closest to the indoor side in the heat insulating layer of the roof panel 31 (the lower surface S of the first plate material 34a). The lower surface S of the first plate member 34a is exposed to the heat insulating members 23 and 24 located on the indoor side through an opening 32c formed in the base constituted by the frame 32. By connecting the heat insulating material 24 to the most indoor heat insulating material surface (the lower surface S of the first plate member 34 a) in the heat insulating layer of the roof panel 31, the protruding corner formed by the outer wall 20 of the building 100 and the roof 30 is formed. The ten heat insulating structures 1 can be constructed from the indoor side, and the hermetic treatment from the indoor side is also possible.

  The outer wall panel 21 is supported at a position separated from the beam 40 by connecting members (upper connecting member 50 and lower connecting member 60) fixed to the beam 40. Note that the upper end of the outer wall panel 21 of the present example constitutes a rising portion extending to a position higher than the roof surface 30a so as to surround the outer periphery of the building 100, and the upper end thereof is covered with a shade 25. Have been done.

  The beam 40 shown in FIG. 1 is located on the outer peripheral side of the building 100 and supports the outer wall 20 and the roof 30. The beam 40 is arranged along the outer wall 20 of the building 100, extends in the horizontal direction, and is supported by a plurality of columns. Further, in the illustrated example, the beam 40 is formed of an H-shaped steel having the web 41 and the upper and lower flanges 42a and 42b, but is not limited to this shape, and the shape can be appropriately changed. Also, it is not limited to iron. As shown in FIG. 2, a plurality of through holes 42c are formed in the upper and lower flanges 42a and 42b, and the upper connecting member 50 and the lower connecting member 60 described later can be fastened and fixed by a fastening member such as a bolt. It is configured as follows.

  The upper connecting member 50 is fixed to the upper flange 42a of the beam 40 using a fastening member such as a bolt, as shown in FIG. It is fixed using a fastening member such as. The upper connecting member 50 of the present example is arranged so as to cover the inner surface of the upper end portion of the outer wall panel 21, and is bent outward from the upper end of the vertical portion 51 to the outside of the building 100 to cover the upper end surface of the outer wall panel 21. And an upper end cover 52. The vertical portion 51 is applied along the inner surface of the outer wall panel 21 and is fastened and fixed to the outer wall panel 21 using a fastening member such as a bolt.

  The upper connecting member 50 has a take-out connecting portion 53 projecting from a lower side of the vertical portion 51 and connecting the vertical portion 51 to the beam 40 in a state of being taken out. The take-out connection part 53 connects the vertical part 51 to the beam 40 in a take-out state. That is, the vertical portion 51 is supported by the take-out connecting portion 53 at a position separated from the beam 40 to the outdoor side. If the heat insulating layer is continuously formed from the outer wall 20 to the roof 30, the adjacent heat insulating materials (the heat insulating materials 22 and 23, the heat insulating materials 23 and 24, and the heat insulating materials 24 and The plate members 34a) do not necessarily have to be in contact with each other, and other members that do not become thermal bridges may be interposed.

  The take-out connecting portion 53 has a vertical plate portion 53a welded to the back surface (the indoor side surface) of the vertical portion 51, and a horizontal plate portion 53b welded to the lower surface of the vertical plate portion 53a. The take-out connecting portions 53 are arranged at intervals in the longitudinal direction of the vertical portion 51, and in this example, the three take-out connecting portions 53 are evenly arranged along the longitudinal direction of the vertical portion 51. .

  Like the upper connecting member 50, the lower connecting member 60 supports the outer wall panel 21 in a take-out state separated from the beam 40.

  The lower connecting member 60 of the present example includes a panel connecting portion 61 having a cross section made of an angle material having an L-shape, and a take-out connecting portion 62 for connecting the panel connecting portion 61 to the beam 40 in a take-out state. The panel connecting portion 61 has a horizontal portion 61a and a vertical portion 61b extending downward from an end of the horizontal portion 61a. The horizontal portion 61a extends from the upper end of the vertical portion 61b toward the indoor side (toward the beam 40), and the heat insulating material 22 is placed on the upper surface thereof. The vertical portion 61b is applied to the inner surface of the outer wall panel 21 and fastened and fixed to the outer wall panel 21 using a fastening member such as a bolt.

  The take-out connecting part 62 connects the panel connecting part 61 to the outdoor side of the beam 40 in a take-out state. That is, the panel connecting portion 61 is supported by the take-out connecting portion 62 at a position separated from the beam 40 to the outdoor side. The take-out connecting portion 62 has a vertical plate portion 62a welded to the lower surface of the horizontal portion 61a and the back surface of the vertical portion 61b, and a horizontal plate portion 62b welded to the upper surface of the vertical plate portion 62a. The take-out connecting portions 62 are arranged at intervals in the longitudinal direction of the panel connecting portion 61, and in this example, the three taking-out connecting portions 62 are evenly arranged along the longitudinal direction of the panel connecting portion 61. ing. Note that the shapes of the upper connecting member 50 and the lower connecting member 60 are not limited to the illustrated shapes, and can be changed as appropriate.

  In this example, since the outer wall panel 21 is supported by the upper connecting member 50 and the lower connecting member 60 in a take-out state separated from the beam 40, another heat insulating material is arranged between the outer wall panel 21 and the beam 40. It is also possible to further enhance the heat insulation.

  The roof 30 of this example is a flat roof extending in the horizontal direction, and includes a plurality of roof panels 31 arranged side by side in the horizontal direction. The roof panel 31 is supported by a skeleton including the beam 40. The roof panel 31 of this example is fastened and fixed to the upper flange 42a using a fastening member such as a bolt while being placed on the upper surface of the upper flange 42a of the beam 40. Specifically, in this example, the roof panel 31 is fastened to the beam 40 by a fastening member so as to penetrate both the frame 32 and the brace 33 at four corners of the roof panel 31 which is rectangular in a plan view. It is fixed on the beam 40.

  The roof panel 31 includes a frame-like frame 32 constituting a base, a brace 33 attached to the frame 32, and a plurality of plate members 34a to 34e. The roof panel 31 is a panel unit in which members such as a frame 32, a brace 33, and a plurality of plate members 34a to 34e are integrally assembled in a factory or the like in advance. By using such a roof panel 31, it is possible to improve the construction efficiency and the transport efficiency of the members at the site, compared to a case where each member is carried into a building site and assembled. The roof 30 of the present invention is not limited to the roof panel 31 of the present example in which each member is formed into a panel unit. For example, the frame 32, the brace 33, and the plurality of plate members 34a to 34e are respectively provided. They may be assembled on site. In any case, the roof 30 includes a heat insulating layer (first plate material 34a) exposed to the heat insulating materials 23 and 24 located on the indoor side, and the heat insulating materials 23 and 24 disposed on the indoor side of the beam 40. Extends to the heat insulating material surface S of the heat insulating material (first plate material 34a) located closest to the indoor side in the heat insulating layer of the roof 30. As described above, the heat insulating layers 23 and 24 arranged so as to pass through the indoor side of the beam 40 connect the heat insulating layer of the outer wall 20 and the heat insulating layer of the roof 30 continuously.

  The frame 32 constitutes a base that supports the plurality of plate-shaped members 34a to 34e, and is formed, for example, by joining long steel members having a C-shaped cross section so as to be square in plan view. . In addition, the material and the cross-sectional shape of the members constituting the frame 32 are not particularly limited, and can be appropriately changed. Further, in this example, the plurality of plate members 34a to 34e are arranged above the frame 32, but a part or all of the plurality of plate members 34a to 34e may be arranged inside or below the frame 32. Is also possible. In this case, for example, a configuration in which a plurality of plate members 34a to 34e are fastened and fixed between upper and lower flanges of the frame 32 or on the lower surface of the lower flange can be adopted.

  As shown in FIG. 3, the frame 32 of the present embodiment includes an outer frame 32a in which a linear steel material having a C-shaped cross section is joined in a rectangular shape, and a middle crosspiece 32b joined inside the outer frame 32a. It can be. In this example, two middle crosspieces 32b extending parallel to the short sides of the rectangular outer frame 32a are arranged at intervals in the long side direction of the outer frame 32a. The number and position of the middle rails 32b can be changed as appropriate, and the middle rails 32b are unnecessary when sufficient strength can be secured only by the outer frame 32a. Further, the middle crosspiece 32b may be provided so as to be parallel to the long side of the outer frame 32a.

  An opening 32c is formed in the frame 32, and the lower surface S (the surface of the heat insulating material located closest to the indoor side) of the first plate member 34a constituting the heat insulating layer passes through the opening 32c and the indoor heat insulating materials 23, 24. It is exposed to. The opening 32c is configured so that the heat insulating material 24 passing through the indoor side of the beam 40 can penetrate. The opening 32c of this example is a region inside the outer frame 32a, and is arranged so that the heat insulating material 24 contacts the lower surface S of the first plate member 34a through the opening 32c.

  The brace 33 is a member for reinforcing the frame 32 and suppressing deformation of the frame 32. The brace 33 of the present example is composed of flat long plates (flat bars) 33a and 33b. That is, each of the long plate members 33a and 33b is formed in a shape having a constant width and thickness over the entire longitudinal direction. Thus, by forming the brace 33 with a member having a simple shape, the manufacturing cost and material cost of the brace 33 can be reduced. In addition, since the brace 33 can be made relatively thin by being a flat plate, a space for disposing other members such as a heat insulating material in the roof panel 31 can be secured. Further, in this example, the two long plate members 33a and 33b are members having the same shape, and the members are shared.

  In this example, as shown in FIG. 3, two long plate members 33a and 33b are attached on a diagonal line of the outer frame 32a of the frame 32, and the center where the two long plate members 33a and 33b intersect is shown. A through hole 33c is formed in the portion. The through-hole 33c constitutes a cross-section defect portion, and is configured such that when the long plate members 33a and 33b are deformed by a force in a tensile direction or the like, the through-hole 33c is a starting point of the deformation. That is, when the long plate members 33a and 33b are deformed by a force in the pulling direction or the like, the joint portion to the frame 32 is prevented from being the starting point of the deformation. In addition, the position of the through-hole 33c formed as a cross-section defect part is not limited to the center of the long plate members 33a and 33b, and can be appropriately changed. Further, the cross-section defective portion is not limited to the through hole 33c, and may be a notch or a concave portion as long as the shape becomes a starting point of deformation.

  In addition, since the through-hole 33c of this example is provided in the position where the two long plates 33a and 33b intersect, the long plates 33a and 33b are fastened to each other through a fastening member such as a bolt through the through-hole 33c. be able to. Accordingly, it is possible to prevent bending of the long plate members 33a and 33b due to their own weight, and to prevent noise due to contact when vibrating. Further, noise may be prevented by sandwiching an elastic member or the like between the pair of long plate members 33a and 33b. Further, when the middle crosspiece 32b of the frame 32 is provided at a position where two long plate materials 33a and 33b intersect, the two long plate materials 33a and 33b can be fastened to the middle crosspiece 32b. In this example, the two long plate members 33a and 33b are fastened to the lower surface side of the middle crosspiece 32b by fastening members such as bolts, whereby the long plate members 33a and 33b bend due to their own weight, and Prevents noise when vibrating. That is, the long plate members 33a and 33b constituting the brace 33 are fastened and fixed to the frame 32 at portions (center regions) other than the longitudinal ends of the long plate members 33a and 33b. When fixing the roof panel 31 to the beam 40, both ends of the long plate members 33a and 33b are fastened to the beam 40 together with the frame 32.

  Here, for example, as shown in FIG. 4 as a reference example, when the brace 233 is fixed between the beams 240 on both sides supporting the frame 232 of the roof panel, it is necessary to attach the brace 233 to the beam 240 at the building site. , It is necessary to attach the frame 232 to the beam 240 separately.

  On the other hand, by attaching the brace 33 to the frame 32 in advance as in this example, it is only necessary to attach the frame 32 to the beam 40 at the construction site, as shown in FIG. As a result, construction efficiency can be improved, and work safety can be improved by reducing the work of lifting members and mounting work to a high place at a construction site.

  Further, since the frame 32 of the roof panel 31 is fastened and fixed to the beam 40, the position of the roof panel 31 with respect to the beam 40 does not shift even when vibration or the like occurs. Work such as filling the outer periphery with mortar becomes unnecessary. In addition, it is possible to arrange a heat insulating material in a space on the outer peripheral side of the roof panel 31 (a space above the beam 40), and it is possible to further enhance the heat insulating property of the protruding corner portion 10.

  The plate-like members 34a to 34e in this example are composed of a first plate 34a made of phenol foam, a second plate 34b made of polystyrene foam, and wood plywood from the side close to the frame 32 (the lower side in FIG. 1). A third plate 34c, a fourth plate 34d made of polystyrene foam, and a fifth plate 34e made of phenol foam are provided. A non-combustible plate 35 is laid on the upper surface of the fifth plate 34e.

  The first plate 34a, the second plate 34b, the fourth plate 34d, and the fifth plate 34e are heat insulating materials and form a heat insulating layer. The third plate member 34c is a material that firmly holds a fastening member such as a screw (the lower screw 37a and the upper screw 37b in the present example) so that the fastening member does not easily come off. That is, the third plate member 34c may be any member as long as the fastening member can exert the fastening force.

  In the present example, the fourth plate member 34d is a gradient panel provided with a water gradient, and the thickness is gradually changed. However, among the plurality of plate members 34a to 34e, other plate members are inclined. It may be a panel. The number of the plate members 34a to 34e is not particularly limited, and may be one or two or more. In addition, the upper and lower positional relationship of the plurality of plate members 34a to 34e arranged in a stack is not particularly limited, and can be changed as appropriate.

  In this example, the plurality of plate members 34a to 34e are fastened to the frame 32 in two stages by fastening members. That is, some of the plate members 34a, 34b, and 34c are fastened and fixed to the frame 32 with the lower screws 37a (first fastening members), and the remaining plate members 34d and 34e are not directly fastened to the frame 32, and The third plate member 34c of some of the plate members 34a, 34b, and 34c is fastened by upper screws 37b (second fastening members). The lower screw 37a passes through the third plate 34c, the second plate 34b, and the first plate 34a and is fastened to the upper flange of the frame 32. The upper screw 37b penetrates the non-combustible plate 35, the fifth plate 34e, and the fourth plate 34d, and is fastened to the third plate 34c. The upper screw 37b is not in contact with the frame 32 and is not exposed on the lower surface S side of the first plate member 34a. The lower screw 37a is located below the fourth plate 34d, and is configured not to be exposed above the roof panel 31. As described above, since the upper screw 37b and the lower screw 37a do not penetrate from the upper surface to the lower surface of the roof panel 31 and terminate on the way, the heat transmitting the temperature above the roof panel 31 to the lower part of the roof panel 31. It is difficult to produce a bridging effect. Thereby, it is possible to suppress a decrease in heat insulation due to a thermal bridge effect of the fastening member used for the roof panel 31. In addition, the occurrence of dew condensation on the upper surface side or the lower surface side of the roof panel 31 can be suppressed. The upper screw 37b and the lower screw 37a are preferably members having the same shape. According to this, the manufacturing cost can be reduced by using a common fastening member.

  The non-combustible plate 35 is laid on the upper surface of the heat insulating layer, that is, on the upper surface of the fifth plate 34e in this example. The non-combustible plate 35 has a function of preventing the roof panel 31 from burning. The non-combustible plate 35 can be, for example, a calcium silicate plate, but is not limited thereto. For example, an insulation board, a hard wood chip cement plate, a sizing board, or the like can be used.

  The upper surface of the non-combustible plate 35 is covered with a waterproof sheet 36 constituting a waterproof layer. The waterproof sheet 36 is preferably a moisture-permeable waterproof sheet made of a polymer material such as polyethylene. According to this, it is possible to achieve both the effect of preventing rainwater or the like from entering from the outside and the effect of preventing dew condensation on the inner surface of the waterproof sheet 36. Note that the waterproof sheet 36 may be configured to cover the entirety of the roof panel 31 except for the lower surface, that is, the area covering the upper surface to the side surface (outer peripheral surface). The waterproof sheet 36 is not limited to the above example, and may be, for example, a sheet made of vinyl chloride. The waterproof sheet 36 may be stretched at least on the top surface of the roof panel 31.

  Here, it is preferable to provide a sheet-like airtight material on the outer peripheral surface of the roof panel 31 (in particular, on the outer peripheral side of the frame 32), and according to this, airtightness between two adjacent roof panels 31 is provided. , Liquid tightness can be improved. Further, the waterproof sheet 36 may be disposed as far as the outer peripheral surface of the roof panel 31 and used as an airtight material. In order to prevent rainwater from entering during the construction process, it is preferable to apply a waterproof tape so as to straddle the upper surfaces of two adjacent roof panels 31.

  A drain groove 38 for draining the roof is formed inside the rising portion along the upper end (rising portion) of the outer wall panel 21.

  The drain groove 38 is formed on the outer peripheral side of the roof panel 31. The drain groove portion 38 is configured by covering a portion from an outer peripheral edge of the roof panel 31 to an upper portion of the upper end cover portion 52 with a drain groove bottom plate 39.

  As described above, in the heat insulating structure 1 of the present embodiment, the heat insulating layer (heat insulating material 22) provided on the outer wall 20 passes through the indoor side of the beam 40 that supports the outer wall 20 and the roof 30, and is the most indoor side. Are connected to the heat insulating layer of the roof 30 by heat insulating materials 23 and 24 extending to the heat insulating material surface (the lower surface S of the first plate member 34a). Thereby, according to the heat insulation structure 1 of the present embodiment, the heat insulation of the corner 10 formed by the outer wall 20 and the roof 30 can be enhanced. As a result, the heat insulation of the entire building 100 is also improved.

  Further, in the heat insulation structure 1 of the present embodiment, all dry members are used. According to this, the weight of the roof 30 is reduced, and the weight of the building 100 can be reduced. In addition, the burden on the structural members can be reduced by making the roof 30 lighter. Furthermore, in the present embodiment, the fastening method is made dry by using fastening members such as screws (the lower screw 37a and the upper screw 37b in this example). Thereby, compared with a wet fixing method such as a molten asphalt bonding, for example, the operation is simple and the fixing can be performed with high accuracy regardless of the skill of the worker. Therefore, quality can be ensured also regarding the degree of fixation of the plate material constituting the heat insulating layer of the roof 30.

  Further, in the heat insulating structure 1 of the present embodiment, the roof heat insulating work is completed when the frame is attached by using the roof panel 31 formed as a panel unit. In other words, the roof insulation work has also been completed at the completion of the frame work. Generally, the roof frame and the roof insulation work are separate works. However, in the present embodiment, the installation work of the roof panel 31 is completed once and the frame work and the roof heat insulation work are completed. As described above, since it is not necessary to separately perform the heat insulation work, the work period can be shortened, and the cost can be reduced. In addition, it is not affected by the weather until the insulation work is completed.

  Further, in the heat insulating structure 1 of the present embodiment, a plurality of types of roof heat insulating materials (34a, 34b, 34c, 34d) are stacked instead of one type. Therefore, it is easy to adjust both the cost and the heat insulation performance. Specifically, in the present embodiment, the first plate member 34a and the second plate member 34b are made of different heat insulating materials in order to prioritize cost performance with respect to required performance. The performance can be improved by using the same high-performance heat insulating material for the 34a and the second plate 34b. In addition, it is also necessary to secure the slope with the roof frame, such as securing the slope with concrete (mortar) or putting a girder for the slope on the beam by using one type of heat insulating layer with a sloped heat insulating material. Absent. As a result, stable quality (gradient angle) can be secured while reducing the number of members.

  Further, in the heat insulating structure 1 of the present embodiment, the outer wall panel 21 is supported by the upper connecting member 50 and the lower connecting member 60 in a take-out state separated from the beam 40. Thereby, formation of a thermal bridge extending from the outer wall panel 21 side to the indoor side can be reduced, and heat insulation can be improved.

  Further, in the heat insulating structure 1 of the present embodiment, a rising portion (parapet) of the outer wall panel 21 is provided, and a drain groove 38 is provided. According to this, the outer gutter is not required for the roof 30, and the design of the appearance can be enhanced.

  Further, in the heat insulating structure 1 of the present embodiment, since a dry member is used, there is no need to worry about moisture as in the case of using concrete, for example. That is, when concrete is used, there is a possibility that dew condensation may occur between the concrete and the heat insulating material, and there is a concern about occurrence of “bulging of the waterproof sheet” which has an adverse effect on the waterproof sheet due to the moisture of the concrete. In order to prevent such swelling, for example, a degassing cylinder is installed. In the heat insulating structure 1 according to the present embodiment, there is an effect that wet concrete can be used without being used by a dry method, and there is an effect of not being affected by rain until the completion of waterproofing work. No installation is required.

  Further, in the heat insulating structure 1 of the present embodiment, the plate members (34a, 34b, 34c, 34d) constituting the heat insulating layer of the roof 30 are not extended to the end of the roof 30 that is in contact with the outer wall panel 21, and the beams 40 Up to the core (module core). Accordingly, modules for manufacturing the roof panel 31 can be prepared, thereby improving manufacturing efficiency and reducing costs. Specifically, by unifying the heat insulating material size of the roof panel 31 on the outer peripheral side of the building 100 in contact with the outer wall panel 21 and the roof panel 31 on the central side of the building 100 not in contact with the outer wall panel 21, the size of the heat insulating material Therefore, it is possible to avoid that the roof panel 31 is separately manufactured. Thereby, the roof panel 31 can be manufactured by the same production method irrespective of whether the roof panel 31 is in contact with the outer wall panel 21 and the production efficiency can be improved, so that the cost of the roof panel 31 can be reduced.

  The heat insulating structure and the building according to the present invention are not limited to the configuration of the above-described embodiment, and can be realized by various configurations without departing from the contents described in the claims. is there. For example, in the present embodiment, the plurality of plate-like members are all arranged above the frame, but a part of the plurality of plate-like members can be arranged inside or below the frame. In this case, for example, a configuration in which a plurality of plate-shaped members are fastened and fixed between upper and lower flanges of the frame or on the lower surface of the lower flange can be adopted. In the present embodiment, the roof 30 is a land roof, but is not limited thereto, and may be a sloped roof. That is, the intersection angle between the outer wall 20 and the roof 30 at the protruding corner 10 is not limited to the vertical (90 °) as in this example, and may be greater than 90 ° or less than 90 °.

1: Heat insulation structure 10: Outer corner 20: Outer wall 21: Outer wall panel 22, 23, 24: Insulation material (heat insulation layer)
25: Kasagi 30: Roof 30a: Roof surface 31: Roof panel 32: Frame (base)
32a: Outer frame 32b: Middle crosspiece 32c: Opening 33: Brace 33a, 33b: Long plate 33c: Through hole 34a: First plate (plate member, heat insulating layer)
34b: 2nd board | plate material (plate-shaped member, heat insulation layer)
34c: 3rd board | plate material (plate-shaped member)
34d: 4th board | plate material (plate-shaped member, heat insulation layer)
34e: Fifth plate (plate-like member, heat insulating layer)
35: non-combustible plate 36: waterproof sheet 37a: lower screw (first fastening member)
37b: Upper screw (second fastening member)
38: Drainage groove 39: Drainage bottom plate 40: Beam (body)
41: Web 42a: Upper flange 42b: Lower flange 42c: Through hole 50: Upper connecting member (connecting member)
51: vertical portion 52: upper end cover portion 53: take-out connection portion 53a: vertical plate portion 53b: horizontal plate portion 60: lower connection member (connection member)
61: Panel connecting part 61a: Horizontal part 61b: Vertical part 62: Take-out connecting part 62a: Vertical plate part 62b: Horizontal plate part 100: Building

Claims (6)

It is a heat insulation structure at the corner of the outside composed of the outer wall of the building and the roof,
The roof comprises an insulating layer,
The outer wall includes a heat insulating layer disposed on the indoor side,
The heat insulating layer of the outer wall is continuous with the heat insulating layer of the roof by a heat insulating material that passes through the indoor side of the building supporting the outer wall and the roof and extends to the surface of the heat insulating material closest to the indoor side of the heat insulating layer of the roof. A heat insulating structure characterized by being electrically connected. The roof includes a roof panel having a base and a plurality of plate-like members supported by the base,
The heat insulation structure according to claim 1, wherein at least a part of the plurality of plate members constitutes the heat insulation layer.   The heat insulating structure according to claim 2, wherein the base has an opening through which a heat insulating material that passes through the indoor side of the skeleton can pass. The base is configured by a frame-shaped frame,
The heat insulation structure according to claim 2, wherein a reinforcing brace is attached to the frame.   The heat insulation structure according to claim 4, wherein the brace is made of a flat long plate.   A building comprising the heat insulating structure according to claim 1.

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