JP7115922B2 - Insulated structures and buildings - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heat insulating structure for external corners composed of an outer wall and a roof of a building, and a building provided with the heat insulating structure.

Conventionally, in order to improve the heat insulating performance of a building, a heat insulating layer made of various heat insulating materials is formed on the indoor side of the outer wall (peripheral wall) that covers the frame from the outside.

For example, Patent Document 1 discloses a heat insulating layer that includes a heat insulating material arranged along the inner surface of an outer wall panel that covers a frame such as a beam from the outside, and a heat insulating material arranged in the space between the upper and lower flanges of the beam. Established buildings are disclosed. With such a configuration, it is possible to enhance the heat insulation of the outer wall of the building.

JP-A-5-98720

However, in Patent Document 1, no particular consideration is given to the heat insulating structure of the external corners formed by the outer wall and the roof, and there is room for improvement in terms of the heat insulating properties of the building.

Therefore, the present invention provides an external corner heat insulation structure and a building that can improve the thermal insulation of the building as a whole by increasing the thermal insulation of the external corner formed by the outer wall and the roof of the building. intended to provide

The present invention provides a thermal insulation structure for external corners composed of an outer wall and a roof of a building,
the roof comprises an insulating layer,
The outer wall has a heat insulating layer arranged on the indoor side,
The insulation layer of the outer wall is connected to the insulation layer of the roof by an insulation material that passes through the indoor side of the frame that supports the exterior wall and the roof and extends to the surface of the insulation material that is closest to the indoor side in the insulation layer of the roof. It is characterized by being physically connected.

In addition, in the heat insulating structure of the present invention, the roof includes a roof panel having a base and a plurality of plate-like members supported by the base,
At least part of the plurality of plate members preferably constitutes the heat insulating layer.

Moreover, 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 insulation structure of the present invention, the base portion is composed of a frame-like frame,
It is preferable that a reinforcing brace is attached to the frame.

Moreover, in the heat insulating structure of the present invention, it is preferable that the brace is made of a long flat plate material.

A building of the present invention is characterized by comprising any one of the heat insulating structures described above.

According to the present invention, an exterior corner heat insulation structure and a building are provided, which can improve the insulation performance of the building as a whole by increasing the insulation performance of the exterior corner composed of the outer wall and the roof of the building. can provide.

1 is a vertical cross-sectional view showing a heat insulating structure for an external corner as an embodiment of the present invention; FIG. FIG. 2 is a perspective view for explaining an upper connecting member and a lower connecting member of FIG. 1; FIG. 2 is a perspective view for explaining a frame and braces in the roof panel of FIG. 1; FIG. 4 is a partial cross-sectional view of a roof as a reference example shown for comparison; Figure 2 is a schematic cross-sectional view of part of the roof of Figure 1;

EMBODIMENT OF THE INVENTION Hereafter, embodiment of the building provided with the heat insulation structure which concerns on this invention, and the said heat insulation structure is described, referring drawings. The same reference numerals are given to the configurations that are common in each figure.

FIG. 1 shows a sectional view of a building 100 with an insulation structure 1 according to one embodiment of the invention. The heat insulation structure 1 of the present embodiment is provided at an external corner portion 10 composed of an outer wall 20 and a roof 30 of a building 100 .

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

The foundation structure is positioned below the upper structure and supports the framework thereof. The upper structure includes a framework (framework) composed of a plurality of pillars and a plurality of beams installed between the pillars, an outer wall 20 arranged on the outer peripheral side of the frame, and placed on the beams of the frame. and the 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 forming a heat insulating layer, and an interior material. In addition, in FIG. 1, the interior material is omitted for convenience of explanation.

As the outer wall panel 21, for example, a light cellular concrete (hereinafter referred to as "ALC", "ALC" is an abbreviation for "autoclaved light weight concrete") panel, metal-based or ceramic-based siding, extrusion Molded cement boards, wood-based panels, and the like can be used. The skin layer of the outer wall 20 can be formed by connecting the outer wall panel 21 around the outer periphery of the frame.

As the heat insulating material 22, for example, in addition to a panel-shaped heat insulating material made of a foamed resin material such as phenol foam, polystyrene foam, or urethane foam, a fiber heat insulating material such as rock wool can also be used. 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 an inner skin layer can be formed by connecting the interior material to the indoor side of the outer peripheral portion of the frame.

In this example, the heat insulating layer of the outer wall 20 and the heat insulating layer of the roof 30 are continuously connected by the heat insulating materials 23 and 24 arranged so as to pass through the indoor side of the beam 40 . Specifically, the heat insulating material 23 positioned below the beam 40 and the heat insulating material 24 positioned 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 34a forming the heat insulating layer of the roof 30 are continuously connected by heat insulating materials 23 and 24. As shown in FIG. As the heat insulating materials 23 and 24, for example, in addition to panel-shaped heat insulating materials made of foamed resin materials such as phenol foam, polystyrene foam, and urethane foam, fiber-based heat insulating materials such as rock wool can also be used.

The heat insulating material 24 extends to the surface of the heat insulating material closest to the interior of the heat insulating layer of the roof panel 31 (the lower surface S of the first plate member 34a). The lower surface S of the first plate member 34a is exposed to the heat insulating materials 23 and 24 located on the indoor side through an opening 32c formed in the base composed of the frame 32. As shown in FIG. By connecting the heat insulating material 24 to the surface of the heat insulating material closest to the interior of the heat insulating layer of the roof panel 31 (the lower surface S of the first plate member 34a), an external corner portion composed of the outer wall 20 of the building 100 and the roof 30 The heat insulation structure 1 of 10 can be constructed from the indoor side, and airtight processing 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 . In addition, the upper end of the outer wall panel 21 of this 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 is covered with a coping 25. It is

The beams 40 shown in FIG. 1 are located on the outer peripheral side of the building 100 and support the outer wall 20 and the roof 30 . The beams 40 are arranged along the outer wall 20 of the building 100, extend horizontally, and are supported by a plurality of columns. In the illustrated example, the beam 40 is made of H-shaped steel having a web 41 and upper and lower flanges 42a and 42b, but the shape is not limited to this shape, and the shape can be changed as appropriate. Moreover, it is not restricted to iron. As shown in FIG. 2, the upper and lower flanges 42a and 42b are formed with a plurality of through holes 42c so that an upper connecting member 50 and a lower connecting member 60, which will be described later, can be fastened and fixed with fastening members such as bolts. is configured as

As shown in FIG. 2, the upper connecting member 50 is fixed to the upper flange 42a of the beam 40 using a fastening member such as a bolt, and is fixed to the upper side of the outer wall panel 21 by using a bolt, for example. It is fixed using a fastening member such as. The upper connecting member 50 of this example includes a vertical portion 51 arranged so as to cover the inner surface of the upper end portion of the outer wall panel 21, and the upper end of the vertical portion 51 bent toward the outside of the building 100 to cover the upper end surface of the outer wall panel 21. and an upper end covering portion 52 . The vertical portion 51 is applied along the inner surface of the outer wall panel 21 and fastened and fixed to the outer wall panel 21 using fastening members such as bolts.

Further, the upper connecting member 50 has a projecting connecting portion 53 that protrudes from the lower side of the vertical portion 51 and connects the vertical portion 51 to the beam 40 in a projecting state. The extending connecting portion 53 connects the vertical portion 51 to the beam 40 in a extending state. That is, the vertical portion 51 is supported by the extension connecting portion 53 at a position spaced apart from the beam 40 to the outside. In addition, 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 material 22 and the heat insulating material 23, the heat insulating material 23 and the heat insulating material 24, and the heat insulating material 24 and the first heat insulating material) The plate members 34a) do not necessarily have to be in contact with each other, and another member that does not form a thermal bridge may intervene.

The carry-out connecting portion 53 has a vertical plate portion 53a welded to the rear surface (indoor 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. .

Similar to the upper connecting member 50 , the lower connecting member 60 supports the outer wall panel 21 in a protruded state separated from the beam 40 .

The lower connecting member 60 of this example has a panel connecting portion 61 made of an angle member having an L-shaped cross section, and a projecting connecting portion 62 that connects the panel connecting portion 61 to the beam 40 in a projecting state. The panel connecting portion 61 has a horizontal portion 61a and a vertical portion 61b extending downward from an end portion of the horizontal portion 61a. The horizontal portion 61a extends from the upper end of the vertical portion 61b to the indoor side (beam 40 side), 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 is fastened and fixed to the outer wall panel 21 using fastening members such as bolts.

The extension connecting portion 62 connects the panel connection portion 61 to the outdoor side of the beam 40 in a retracted state. That is, the panel connecting portion 61 is supported by the carry-out connecting portion 62 at a position spaced apart from the beam 40 to the outside. The take-out connecting portion 62 has a vertical plate portion 62a welded to the lower surface of the horizontal portion 61a and the rear 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 connection portions 62 are arranged at intervals in the longitudinal direction of the panel connection portion 61, and in this example, the three take-out connection portions 62 are evenly arranged along the longitudinal direction of the panel connection portion 61. ing. 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 protruding 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 improve the heat insulation.

The roof 30 of this example is a horizontally extending flat roof, and includes a plurality of roof panels 31 horizontally arranged side by side. Roof panel 31 is supported by a frame including beams 40 . The roof panel 31 of this example is placed on the upper surface of the upper flange 42a of the beam 40 and fastened and fixed to the upper flange 42a using fastening members such as bolts. Specifically, in this example, the roof panel 31 is fastened to the beams 40 by fastening members so as to pass through the frames 32 and the braces 33 at four corners of the roof panel 31 which is rectangular in plan view. It is fixed on beam 40 .

The roof panel 31 includes a frame-like frame 32 forming a base, braces 33 attached to the frame 32, and a plurality of plate-like members 34a to 34e. The roof panel 31 is a panel unit formed by integrally assembling members such as a frame 32, a brace 33, and a plurality of plate members 34a to 34e in a factory or the like. By using such a roof panel 31, construction efficiency at the construction site and transportation efficiency of the members can be improved compared to the case where each member is brought to the construction site and assembled. The roof 30 of the present invention is not limited to the roof panel 31 of this embodiment in which each member is made into a panel unit. It may be assembled on site. In either case, the roof 30 has a heat insulating layer (first plate material 34a) exposed to the heat insulating materials 23, 24 located on the indoor side, and the heat insulating materials 23, 24 placed on the indoor side of the beam 40 are exposed. extends to the heat insulating material surface S of the heat insulating material (the first plate material 34a) positioned closest to the indoor side in the heat insulating layer of the roof 30. As shown in FIG. In this manner, the heat insulating layer of the outer wall 20 and the heat insulating layer of the roof 30 are continuously connected by the heat insulating materials 23 and 24 arranged so as to pass through the indoor side of the beam 40 .

The frame 32 constitutes a base for supporting a 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 form a square when viewed from above. . The material and cross-sectional shape of the members forming the frame 32 are not particularly limited, and can be changed as appropriate. In this example, the plurality of plate-like members 34a to 34e are arranged above the frame 32, but some or all of the plurality of plate-like members 34a to 34e may be arranged inside or below the frame 32. is also possible. In this case, for example, a plurality of plate-like members 34a to 34e may be fastened and fixed between the upper and lower flanges of the frame 32 or on the lower surface of the lower flange.

As shown in FIG. 3, the frame 32 of this example includes an outer frame 32a formed by joining straight steel materials having a C-shaped cross section in a rectangular shape, and a middle crosspiece 32b joined to the inside of the outer frame 32a. can be assumed. In this example, two center crosspieces 32b extending parallel to the short sides of the rectangular outer frame 32a are spaced apart in the long side direction of the outer frame 32a. Note that the number and positions of the middle crosspieces 32b can be changed as appropriate, and the middle crosspieces 32b are not necessary if sufficient strength can be ensured only by the outer frame 32a. Also, 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 of the first plate member 34a constituting the heat insulating layer (the surface of the heat insulating material located closest to the indoor side) passes through the opening 32c to the heat insulating materials 23, 24 on the indoor side. It is exposed against The opening 32c is configured so that the heat insulating material 24 passing through the indoor side of the beam 40 can pass therethrough. The opening 32c of this example is a region inside the outer frame 32a, and the heat insulating material 24 is arranged so as to come into contact with 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 this example is composed of flat elongated plates (flat bars) 33a and 33b. In other words, 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. By forming the brace 33 from a member having a simple shape in this way, the manufacturing cost and material cost of the brace 33 can be suppressed. In addition, since the brace 33 can be made relatively thin by forming the brace 33 as a flat plate, it is possible to secure a space for arranging other members such as a heat insulating material within the roof panel 31 . Further, in this example, the two elongated plate members 33a and 33b are members having the same shape so as to share the members.

In this example, as shown in FIG. 3, two long plate members 33a and 33b are attached on the diagonal line of the outer frame 32a of the frame 32, and the two long plate members 33a and 33b intersect with each other. A through hole 33c is formed in the portion. The through-hole 33c constitutes a cross-sectional defect, and when each of the elongated plate members 33a and 33b is deformed by a force in the pulling direction, the through-hole 33c becomes a starting point of deformation. In other words, when the long plate members 33a and 33b are deformed by a force in the tensile direction, the joints with the frame 32 are prevented from becoming deformation starting points. In addition, the position of the through hole 33c formed as the cross-section missing portion is not limited to the center of the long plate members 33a and 33b, and can be changed as appropriate. Further, the cross-sectional loss portion is not limited to the through hole 33c, and may be a notch or a recess as long as it has a shape that serves as a starting point of deformation.

Since the through hole 33c of this example is provided at a position where the two long plate members 33a and 33b intersect, a fastening member such as a bolt is passed through the through hole 33c to fasten the long plate members 33a and 33b. be able to. As a result, it is possible to prevent the long plate members 33a and 33b from flexing due to their own weight, and also to prevent noise due to contact when they vibrate. Further, noise may be prevented by inserting an elastic member or the like between the pair of long plate members 33a and 33b. Further, when the middle beam 32b of the frame 32 is provided at the position where two long plate members 33a and 33b intersect, the two long plate members 33a and 33b can be fastened to the middle beam 32b. In this example, two long plate members 33a and 33b are respectively fastened to the lower surface side of the middle crosspiece 32b with fastening members such as bolts. Prevents noise when vibrating. That is, the elongated plate members 33a and 33b forming the brace 33 are fastened and fixed to the frame 32 at portions (central regions) other than the longitudinal ends of the elongated plate members 33a and 33b. Both ends of the long plate members 33 a and 33 b are fastened to the beam 40 together with the frame 32 when the roof panel 31 is fixed to the beam 40 .

Here, for example, as shown in FIG. 4 as a reference example, when fixing the braces 233 between the beams 240 on both sides that support the frame 232 of the roof panel, the braces 233 are attached to the beams 240 at the construction site. , the attachment of the frame 232 to the beam 240 must be done separately.

In contrast, by attaching the braces 33 to the frame 32 in advance as in this example, it is only necessary to attach the frame 32 to the beams 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 pulling up members to a high place and the work of mounting them at a construction site.

In addition, by fastening and fixing the frame 32 of the roof panel 31 to the beams 40, the position of the roof panel 31 with respect to the beams 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 becomes possible to dispose a heat insulating material in the space on the outer peripheral side of the roof panel 31 (the space above the beam 40), so that the heat insulating property of the external corner portion 10 can be further improved.

The plate-shaped members 34a to 34e in this example are composed of a first plate member 34a made of phenol foam, a second plate member 34b made of polystyrene foam, and a wooden plywood in this order from the side near the frame 32 (lower side in FIG. 1). A third plate member 34c, a fourth plate member 34d made of polystyrene foam, and a fifth plate member 34e made of phenol foam are provided. In addition, an incombustible plate 35 is laid on the upper surface of the fifth plate member 34e.

The first plate member 34a, the second plate member 34b, the fourth plate member 34d, and the fifth plate member 34e are heat insulating materials and form a heat insulating layer. Further, the third plate member 34c is a material that firmly holds fastening members such as screws (lower screws 37a and upper screws 37b in this example) and makes it difficult for the fastening members to come off. That is, the third plate member 34c may be any member as long as the fastening member can exhibit fastening force.

In this example, the fourth plate member 34d is a gradient panel having a water gradient, and the thickness gradually changes. It can also be used as a panel. The number of plate members 34a to 34e is not particularly limited, and may be one or two or more. Moreover, the vertical positional relationship of the plurality of plate-like members 34a to 34e arranged in layers 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-like members 34a, 34b and 34c are fastened and fixed to the frame 32 with lower screws 37a (first fastening members), and the remaining plate-like members 34d and 34e are not directly fastened to the frame 32, and are not fastened directly to the frame 32. Some of the plate-shaped members 34a, 34b, and 34c are fastened to the third plate member 34c with an upper screw 37b (second fastening member). The lower screw 37a penetrates the third plate member 34c, the second plate member 34b, and the first plate member 34a and is fastened to the upper flange of the frame 32. As shown in FIG. The upper screw 37b passes through the incombustible plate 35, the fifth plate member 34e, and the fourth plate member 34d and is fastened to the third plate member 34c. The upper screw 37b is not in contact with the frame 32 and is not exposed to the lower surface S side of the first plate member 34a. Further, the lower screw 37a is located below the fourth plate member 34d so as not to be exposed above the roof panel 31. As shown in FIG. In this way, 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, but terminate in the middle. It becomes difficult to produce bridging action. As a result, it is possible to suppress deterioration in heat insulating properties due to the thermal bridging action of the fastening members used in the roof panel 31 . Also, it is possible to suppress the occurrence of dew condensation on the upper surface side or the lower surface side of the roof panel 31 . It should be noted that the upper screw 37b and the lower screw 37a are preferably members of the same shape, so that the manufacturing cost can be reduced by using common fastening members.

The incombustible plate 35 is laid on the upper surface of the heat insulating layer, that is, on the upper surface of the fifth plate member 34e in this example. The incombustible plate 35 has a function of preventing the roof panel 31 from burning. The incombustible board 35 may be, for example, a calcium silicate board, but is not limited to this, and may be, for example, an insulation board, a hard wood piece cement board, a sheathing board, or the like.

The upper surface of the incombustible plate 35 is covered with a waterproof sheet 36 forming a waterproof layer. The waterproof sheet 36 is preferably a moisture-permeable waterproof sheet made of a polymeric material such as polyethylene. According to this, it is possible to achieve both the effect of preventing rainwater from entering from the outside and the effect of preventing dew condensation on the inner surface of the waterproof sheet 36 . The waterproof sheet 36 may be configured to cover the entire roof panel 31 excluding the lower surface, that is, the area extending from the upper surface to the side surface (peripheral surface). The waterproof sheet 36 is not limited to the above example, and may be a vinyl chloride sheet, for example. Moreover, the waterproof sheet 36 may be stretched over at least the top surface of the roof panel 31 .

Here, it is preferable to provide an airtight material such as a sheet on the outer peripheral surface of the roof panel 31 (particularly on the outer peripheral side of the frame 32). , the liquid-tightness can be increased. Further, the waterproof sheet 36 may be arranged up to the outer peripheral surface of the roof panel 31 and used as an airtight material. In addition, in order to prevent rainwater from entering during the construction process, it is preferable to attach a waterproof tape so as to straddle the upper surfaces of the two adjacent roof panels 31 .

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

The drainage groove portion 38 is formed on the outer peripheral side of the roof panel 31 . The drain groove portion 38 is formed by covering the upper portion of the upper end cover portion 52 from the outer peripheral edge of the roof panel 31 with the 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 beams 40 that support the outer wall 20 and the roof 30, is connected to the heat insulating layer of the roof 30 by the heat insulating materials 23, 24 extending to the surface of the heat insulating material (lower surface S of the first plate member 34a). Thus, according to the heat insulating structure 1 of the present embodiment, it is possible to improve the heat insulating properties of the outside corner portion 10 constituted by the outer wall 20 and the roof 30 . As a result, the heat insulation of the building 100 as a whole is also improved.

Moreover, in the heat insulation structure 1 of this embodiment, all dry members are used. According to this, the weight of the roof 30 is lightened, and the dead weight of the building 100 can be lightened. In addition, since the roof 30 is lighter, the load on structural members can be reduced. Furthermore, in this embodiment, the fastening method is also dry by using fastening members such as screws (lower screws 37a and upper screws 37b in this example). As a result, compared to a wet fixing method such as adhesion of molten asphalt, the work is simple and the fixing can be performed with high precision regardless of the skill of the operator. Therefore, the quality can be ensured with respect to the degree of fixation of the plate material that constitutes the heat insulating layer of the roof 30 .

In addition, in the heat insulating structure 1 of the present embodiment, by using the roof panel 31 made into a panel unit, roof heat insulating construction is completed when the frame is attached. In other words, the roof insulation work is completed when the framework work is completed. In general, the roof frame and the roof insulation work are separate works, but in this embodiment, the roof panel 31 is installed once, and the frame work and the roof insulation work are completed. In this way, since it is not necessary to perform insulation work separately, the construction 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.

Moreover, in the heat insulating structure 1 of the present embodiment, the roof heat insulating materials (34a, 34b, 34c, 34d) are not of one type, but of a plurality of types. Therefore, it is easy to adjust both cost and 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 give priority to cost compared to the required performance. The performance can be improved by using the same high-performance heat insulating material for the 34a and the second plate member 34b. In addition, by using sloped insulation as one type of insulation layer, it is necessary to secure the slope with the roof frame, such as securing the slope with concrete (mortar) or inserting beams for slope on the beam. do not have. As a result, stable quality (inclination angle) can be ensured while reducing the number of parts.

In addition, 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 protruded state separated from the beam 40 . As a result, formation of a thermal bridge extending from the exterior 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, the rising portion (parapet) of the outer wall panel 21 is provided, and the drainage groove portion 38 is provided. This eliminates the need for an outer gutter on the roof 30, thereby enhancing the design of the exterior.

In addition, since dry members are used in the heat insulating structure 1 of the present embodiment, there is no need to worry about moisture unlike the case of using concrete, for example. That is, when concrete is used, there is a possibility that dew condensation occurs between the layers of the concrete and the heat insulating material, and there is concern about the occurrence of "blistering of the waterproof sheet" in which moisture in the concrete adversely affects the waterproof sheet. In order to prevent such swelling, for example, de-cylinders are installed. In the heat insulation structure 1 of the present embodiment, it is possible to construct it by a dry construction method without using wet concrete, and it is not affected by rain until the waterproofing work is completed. No installation required.

Furthermore, in the heat insulation structure 1 of the present embodiment, the plate materials (34a, 34b, 34c, 34d) constituting the heat insulation layer of the roof 30 are not extended to the end of the roof 30 that contacts the outer wall panel 21, and the beams 40 are It is up to the core (module core). As a result, the modules involved in the manufacture of the roof panel 31 can be aligned, the manufacturing efficiency can be improved, and the cost can be reduced. Specifically, by unifying the heat insulating material size of the roof panel 31 on the outer peripheral side of the building 100 that is in contact with the outer wall panel 21 and the roof panel 31 on the central side of the building 100 that is not in contact with the outer wall panel 21, the size of the heat insulating material It is possible to avoid manufacturing different types of roof panels 31 due to the above. Thereby, the roof panel 31 can be manufactured by the same production method regardless of whether it is in contact with the outer wall panel 21 or not, and the production efficiency can be improved, so that the cost of the roof panel 31 can be reduced.

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

1: Insulation structure 10: Outer corner 20: Outer wall 21: Outer wall panel 22, 23, 24: Insulation material (insulation layer)
25: Coping 30: Roof 30a: Roof surface 31: Roof panel 32: Frame (base)
32a: Outer frame 32b: Middle crosspiece 32c: Opening 33: Brace 33a, 33b: Elongated plate material 33c: Through hole 34a: First plate material (plate member, heat insulating layer)
34b: Second plate (plate-like member, heat insulating layer)
34c: Third plate (plate-like member)
34d: Fourth plate (plate-like member, heat insulating layer)
34e: Fifth plate (plate-like member, heat insulating layer)
35: noncombustible plate 36: waterproof sheet 37a: lower screw (first fastening member)
37b: upper screw (second fastening member)
38: drainage groove part 39: drainage groove bottom plate 40: beam (framework)
41: Web 42a: Upper flange 42b: Lower flange 42c: Through hole 50: Upper connecting member (connecting member)
51: Vertical portion 52: Upper end covering portion 53: Carry-out connecting portion 53a: Vertical plate portion 53b: Horizontal plate portion 60: Lower connecting member (connecting member)
61: Panel connecting portion 61a: Horizontal portion 61b: Vertical portion 62: Carry-out connecting portion 62a: Vertical plate portion 62b: Horizontal plate portion 100: Building

Claims (4)

A heat insulation structure for an external corner portion composed of an outer wall and a roof of a building,
the roof comprises an insulating layer,
The outer wall has a heat insulating layer arranged on the indoor side,
The insulation layer of the outer wall is connected to the insulation layer of the roof by an insulation material that passes through the indoor side of the frame that supports the exterior wall and the roof and extends to the surface of the insulation material that is closest to the indoor side in the insulation layer of the roof. connected and
The roof comprises a roof panel having a base and a plurality of plate members supported by the base,
At least a portion of the plurality of plate-shaped members constitute the heat insulating layer,
The base is composed of a frame-shaped frame,
A heat insulating structure in which a reinforcing brace is attached to the frame . The heat insulating structure according to claim 1 , wherein the base has an opening through which a heat insulating material passing through the indoor side of the skeleton can pass. 3. The heat insulating structure according to claim 1, wherein said brace is made of a flat elongated plate material. A building comprising the heat insulating structure according to any one of claims 1 to 3 .

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