JP2022153669A - Insulation structure and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide insulation structures at protruded corner parts and a building therewith allowing insulation of the whole building to be improved by enhancing insulation at protruded corner parts configured with outer walls and roofs of the building.

SOLUTION: Insulation structures 1 at protruded corner parts 10 configured with outer walls 20 and roofs 30 of a building 100 are continuously formed in a way that insulation layers 22, 23, 24 arranged in the outer wall 20 and insulation layers 34a, 34b, 34d, 34e arranged in the roof 30 are placed on an outer peripheral side of the building 100 to be installed through an exterior side of a skeleton 40 supporting the outer wall 20 and the roof 30.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

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, Patent Document 1 does not particularly consider the heat insulation structure of the external corners composed of the outer wall and the roof, and there is room for improvement in terms of the heat insulation 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 heat insulating layer provided on the outer wall and the heat insulating layer provided on the roof are formed so as to be continuous through the outdoor side of a frame that is located on the outer peripheral side of the building and supports the outer wall and the roof. It is characterized by

In addition, in the heat insulation structure of the present invention, the heat insulation layer provided on the outer wall and the heat insulation layer provided on the roof are panel-shaped,
The heat insulating material provided between the heat insulating layer provided on the outer wall and the heat insulating layer provided on the roof is a fiber-based heat insulating material.

Further, in the heat insulation structure of the present invention, the outer wall includes an outer wall panel supported at a position spaced apart from the building frame by a connection member fixed to the building frame,
It is preferable that the heat insulating layer provided on the outer wall is formed so as to pass between the frame and the outer wall panel and straddle the upper and lower sides of the connecting member.

Moreover, in the heat insulating structure of the present invention, it is preferable that the roof is a flat roof extending in the horizontal direction.

Moreover, in the heat insulating structure of the present invention, it is preferable that the roof includes a roof panel having a base and a plurality of plate members supported by the base.

Further, in the heat insulation structure of the present invention, it is preferable that the plate member of the roof panel on the outer peripheral side of the building has a size up to the core of the beam on the outer peripheral side of the building.

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

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

Further, in the heat insulating structure of the present invention, some of the plurality of plate-like members are fixed to the base by the first fastening member, and the remaining plate-like members are not fixed to the base. It is preferable that the part of the plate member is fixed by a second fastening member.

Moreover, in the heat insulating structure of the present invention, it is preferable that the first fastening member and the second fastening member have the same shape.

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, heat insulating materials 22, 23, and 24 forming heat insulating layers, 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 outer skin layer of the outer wall 20 can be formed by connecting the outer wall panel 21 to the periphery of the building frame.

The heat insulating materials 22, 23, and 24 are made of, for example, foamed resin materials such as phenol foam, polystyrene foam, and urethane foam, and are formed in a panel shape, or fiber-based heat insulating materials such as glass wool and rock wool. A member can also be used. By arranging the heat insulating materials 22 , 23 , 24 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, a panel-shaped heat insulating material 22 is arranged on the outdoor side of the beam 40 , that is, between the beam 40 and the outer wall panel 21 , and a fiber-based heat insulating material 23 is arranged above the beam 40 . By using the flexibly deformable fiber-based heat insulating material 23, it is possible to easily arrange the heat insulating material even in a space with irregularities due to the carry-out connecting portion 53 of the upper connecting member 50, which will be described later, or fastening members. A panel-shaped heat insulating material 24 similar to the heat insulating material 22 is arranged below the beam 40 . The heat insulating material 22 and the heat insulating material 23 are arranged continuously through the space S1 between the outer wall panel 21 and the upper flange 42a of the beam 40, and the heat insulating material 22 and the heat insulating material 24 are also arranged between the outer wall panel 21 and the beam. 40 are arranged continuously through the space S2 between the lower flange 42b. Also, the heat insulating material 23 is arranged continuously adjacent to the heat insulating layer of the roof 30 (the first plate member 34a, the second plate member 34b, the fourth plate member 34d, and the fifth plate member 34e of the roof panel 31). It should be noted that the heat insulating material 23 can also be a foamed heat insulating material such as a hard urethane foam that is sprayed on site. In this case, airtightness can be ensured at the same time because even a small gap is filled.

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. 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 Note that, for example, when the building 100 is a fire-resistant building stipulated by law, the beams 40 can be provided with a coating made of a material having a predetermined fire-resistant performance.

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. By supporting the outer wall panel 21 in a protruding state away from the beam 40 in this manner, a space S1 in which a heat insulating layer can be arranged is formed between the outer wall panel 21 and the upper flange 42a of the beam 40. By inserting the upper end of the heat insulating material 22 into the space S1, the upper end of the heat insulating material 22 is exposed upward in the space S1. The heat insulating material 23 can be easily arranged adjacent to the heat insulating material 22 so as to contact the heat insulating material 22 . Thereby, a heat insulating layer can be formed so as to pass between the beam 40 and the outer wall panel 21 and straddle the top and bottom of the upper connecting member 50 . In this example, the heat insulating material 22 and the heat insulating material 23 are arranged adjacently so that the upper surface of the heat insulating material 22 and the lower surface of the heat insulating material 23 are in contact with each other through the space S1. The heat insulating material 22 or the heat insulating material 23 may be arranged as one member. If the heat insulating layer is continuously formed, the adjacent heat insulating materials (heat insulating material 22 and heat insulating material 23, and heat insulating material 23 and heat insulating material 34a, 34b, 34d, 34e) do not necessarily contact each other. Alternatively, another member that does not form a thermal bridge may be interposed.

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. In addition to welding, they may be joined by bolts. 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. . The horizontal plate portion 53b is provided at a predetermined distance from the vertical portion 51, and a gap is formed between the horizontal plate portion 53b and the vertical portion 51. As shown in FIG. By continuously forming the heat insulating layer through the gap, it is possible to suppress deterioration of the heat insulating property at the position where the horizontal plate portion 53b is provided.

Similar to the upper connecting member 50, the lower connecting member 60 supports the outer wall panel 21 in a protruding state separated from the beam 40, thereby providing a space between the outer wall panel 21 and the lower flange 42b of the beam 40. A space S2 is formed in which a heat insulating layer can be arranged. By forming the heat insulating layer through this space S2, the heat insulating layer can be continuously formed between the beam 40 and the outer wall panel 21 so as to straddle the upper and lower sides of the lower connecting member 60. - 特許庁

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.

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 fastening members are fastened to the beams 40 so as to pass through the frames 32 and the braces 33 at the four corners of the roof panel 31, which is rectangular in plan view, so that the roof panel 31 is 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 present invention is not limited to a panel unit such as the roof panel 31. For example, the frame 32, the brace 33, and the plurality of plate members 34a to 34e may be assembled on site. . In either case, at least one of the plate-like members (34a, 34b, 34d, 34e) constituting the heat insulating layer is arranged so as to be continuous with the heat insulating material 23 on the outer wall 20 side.

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.

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.

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. In addition, the 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 (flat bars) 33a are attached. , 33b is formed with a through hole 33c. 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-sectional defect is not limited to the center of the long plate members 33a and 33b, and can be changed as appropriate. Moreover, not only a through hole but also a notch or a concave portion may be used as long as the shape is 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 .

By constructing the brace 33 with a member having a simple shape, such as the flat linear elongated plates 33a and 33b of this example, 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 .

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, since the heat insulating material 23 can be arranged in the space on the outer peripheral side of the roof panel 31, the heat insulating layer can be formed in the outside corner 10 so as to continue from the outer wall 20 to the roof 30, and the outside corner 10 can increase the thermal insulation of

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 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 members 34a, 34b, and 34c are fastened to the third plate member 34c with upper screws 37b (second fastening members). 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 on the lower surface 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 enhanced. 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 insulation structure 1 of the present embodiment, the heat insulation layers (22 to 24) provided on the outer wall 20 and the heat insulation layers (34a, 34b, 34d, 34e) provided on the roof 30 are It is formed so as to continue through the outdoor side of the beam 40 which is positioned on the outer peripheral side of the building 100 and supports the outer wall 20 and the roof 30 . 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 frame 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.

In addition, in the heat insulating structure 1 of the present embodiment, the roof heat insulating materials (34a, 34b, 34d, 34e) 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 and the beam 40 are supported by using the upper connecting member 50 and the lower connecting member 60 in a protruded state separated from the beam 40 . A heat insulating layer can be continuously formed between 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.

Further, in the heat insulation structure 1 of the present embodiment, the panel-shaped heat insulation layers (22, 24) provided on the outer wall 20 and the panel-shaped heat insulation layers (34a, 34b, 34d, 34a, 34b, 34d, 34e), the heat insulating layer can be easily formed in a continuous state by arranging the fiber-based heat insulating material 23 between them.

Furthermore, in the heat insulation structure 1 of the present embodiment, the plate materials (34a, 34b, 34d, 34e) 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 building 100 is It extends to the core (module core) of the beam 40 on the outer peripheral side. 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 with various configurations without departing from the scope of the claims. be. For example, in the present embodiment, the plurality of plate-like members 34a-34e are all arranged above the frame 32, but some of the plurality of plate-like members 34a-34e are 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. Also, in the present embodiment, the roof 30 is a flat roof, but it 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 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 S1, S2: Space between beam and outer wall panel

Claims (9)

A heat insulation structure for an external corner portion composed of an outer wall and a roof of a building,
The heat insulating layer provided on the outer wall and the heat insulating layer provided on the roof are formed so as to be continuous through the outdoor side of the frame that is located on the outer peripheral side of the building and supports the outer wall and the roof. ,
The roof comprises a roof panel having a base and a plurality of plate members supported by the base,
The plate member of the roof panel on the outer peripheral side of the building has a size up to the core of the beam on the outer peripheral side of the building,
The plurality of plate-shaped members include a plurality of types of plate-shaped heat insulating layers laminated adjacently,
A heat insulating structure, wherein a sloped heat insulating material is included as the plate-shaped heat insulating layer. The heat insulating layer provided on the outer wall is panel-shaped,
2. The heat insulating structure according to claim 1, wherein the heat insulating material provided between the heat insulating layer provided on the outer wall and the heat insulating layer provided on the roof is a fiber heat insulating material. The outer wall comprises an outer wall panel supported at a position spaced apart from the building frame by a connecting member fixed to the building frame,
3. The heat insulating structure according to claim 1, wherein the heat insulating layer provided on the outer wall is formed so as to pass between the frame and the outer wall panel and straddle the upper and lower sides of the connecting member. The heat insulating structure according to any one of claims 1 to 3, wherein the roof is a horizontally extending flat roof. The base comprises a frame-shaped frame,
5. The heat insulating structure according to any one of claims 1 to 4, wherein a reinforcing brace is attached to the frame. 6. The thermal insulation structure according to claim 5, wherein the brace is made of a flat elongated plate material. A part of the plurality of plate-like members is fixed to the base by a first fastening member, and the remaining plate-like members are not fixed to the base but are attached to the part of the plate-like members by a second fastening member. The insulation structure according to any one of claims 1 to 6, which is fixed with The heat insulation structure according to claim 7, wherein the first fastening member and the second fastening member have the same shape. A building comprising the heat insulation structure according to any one of claims 1 to 8.

Images