External heat insulating structure, wall unit and fitting unit

Abstract

To provide an external heat insulating structure having high heat insulating effect in the periphery of a sash.SOLUTION: An external heat insulating structure of a building includes: an external wall 12 formed with an opening 19 penetrating from indoor to outdoor; an extended frame 21 which surrounds the opening 19 and is joined to an exterior surface of the exterior wall 12; a sash 27 which is mounted on the extended frame 21; and a heat insulating material 40 which is stuck to the exterior surface of the exterior wall 12 outside the extended frame 21, and is brought into contact with the extended frame 21. The external heat insulating structure further includes a reinforcement material 25. The opening 19 is opened on the lower end of the exterior wall 12, the extended frame 21 protrudes downward from the lower end of the exterior wall 12, the reinforcement material 25 is joined to the inner surface of the protruded part, the reinforcement material 25 extends in a lateral direction from both sides of the extended frame 21, and the extended part is abutted on the lower end of the exterior wall 12.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an external insulation structure, a wall unit and a fitting unit. [Background technology]

[0002] Patent Document 1 discloses an external insulation structure in which a heat insulating material is attached to the exterior wall of a building such as a house from the outside. According to the description of Patent Document 1, a double-glazed window sash is installed in an opening of the exterior wall so as to be fitted into the opening, and the double-glazed window sash protrudes from the exterior surface of the exterior wall toward the outside. An upper drip-line is attached to the exterior surface of the exterior wall above the upper end of the double-glazed window sash along the upper edge of the opening, and a lower drip-line is attached to the exterior surface of the exterior wall below the lower end of the double-glazed window sash along the lower edge of the opening. A horizontal upper drip-line is fixed to the exterior surface of the exterior wall above and away from the upper drip-line, and a space is formed between the upper drip-line and the upper drip-line. A horizontal lower drip-line is fixed to the exterior surface of the exterior wall below and away from the lower drip-line, and a space is formed between the lower drip-line and the lower drip-line. An upper insulation material is provided between the exterior wall and the exterior material above the upper drip-line, and the insulation material is in contact with the upper surface of the upper drip-line. The lower insulation material is provided between the exterior wall and the exterior material below the lower piling material, and the insulation material is in contact with the underside of the lower piling material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-072191 A Summary of the Invention [Problem to be solved by the invention]

[0004] The technology described in Patent Document 1 has a low insulating effect around the sash. Specifically, a space is formed between the sash and the drip edge, and heat moves between the indoors and outdoors through the space.

[0005] The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an external insulation structure that has a high insulating effect around the sash. [Means for solving the problem]

[0006] The following reference numerals in parentheses refer to FIGS. 1 to 10.

[0007] According to the invention of claim 1, the external insulation structure of a building comprises an exterior wall (12 or 112) having an opening (19 or 119) that penetrates from the inside to the outside, a frame (21 or 121) that surrounds the opening (19 or 119) and is joined to the outer surface of the exterior wall (12 or 112), a sash (27 or 127) attached to the frame (21 or 121), and an insulating material (40 or 140) that is affixed to the outer surface of the exterior wall (12 or 112) outside the frame (21 or 121) and in contact with the frame (21 or 121).

[0008] According to the invention of claim 1 as described above, the sash (27 or 127) is attached to the frame (21 or 121), the insulating material (40 or 140) is attached to the outer surface of the exterior wall (12 or 112) outside the frame (21 or 121), and the insulating material (40 or 140) is in contact with the frame (21 or 121), so that the insulating effect around the sash (27 or 127) is high.

[0009] According to the invention of claim 2, in the invention of claim 1, the external insulation structure further comprises a reinforcing material (25), the opening (19) opens at the lower end of the outer wall (12), the frame (21) protrudes downward from the lower end of the outer wall (12), the reinforcing material (25) is joined to the inner surface of the protruding portion, and the reinforcing material (25) extends laterally from both sides of the frame (21), and the protruding portions are abutted against the lower end of the outer wall (12).

[0010] According to the invention of claim 2 as described above, the reinforcing material (25) supports both sides of the opening (19) of the exterior wall (12) from below. Such a reinforcing material (25) resists a load that twists one side of the opening (19) of the exterior wall (12) in the vertical direction of the exterior wall (12) relative to the other side, and suppresses distortion of the exterior wall (12) and the frame (21). Therefore, the reinforcing material (25) maintains the state in which the insulating material (40) is in contact with the frame (21). Therefore, the reinforcing material (25) contributes to maintaining the insulating effect around the frame (21).

[0011] According to the invention of claim 3, in the invention of claim 2, a horizontal member (60) arranged horizontally along the outer periphery of the building has an accommodating recess (61) on its outer surface, the exterior wall (12) is installed on the horizontal member (60), and the reinforcing member (25) is fitted into the accommodating recess (61) from above.

[0012] According to the invention of claim 3 as described above, the reinforcing material (25) is fitted into the receiving recess (61) from above, so that the reinforcing material (25) fits snugly. This stabilizes the reinforcing material (25) and prevents deformation and warping of the reinforcing material (25). Warping of the exterior wall (12) and the frame (21) is also suppressed, and the state in which the insulating material (40) is in contact with the frame (21) is maintained. Therefore, the insulating effect around the frame (21) is maintained.

[0013] According to the invention as set forth in claim 4, in the invention as set forth in claim 3, screws are driven into the reinforcing material (25) and the horizontal material (60) from the outside.

[0014] According to the invention of claim 4 as described above, the reinforcing material (25) is stably fixed to the horizontal member (60), and deformation and warping of the reinforcing material (25) are prevented. Warping of the exterior wall (12) and the frame (21) is also suppressed, and the state in which the insulating material (40) is in contact with the frame (21) is maintained. Therefore, the insulating effect around the frame (21) is maintained.

[0015] According to the invention of claim 5, in the invention of claim 2 or 3, the sash (27) is a bay window sash or a back door sash.

[0016] According to the invention of claim 6, in the invention of any one of claims 1 to 4, the raised frame (21 or 121) has a pair of upper and lower horizontal frames (23 or 123) and a pair of horizontal vertical frames (22 or 122) assembled in a rectangular frame shape, and the end faces of the horizontal frames (23 or 123) in the longitudinal direction of the horizontal frames (23 or 123) are abutted against the vertical frames (22 or 122), and the horizontal frames (23 or 123) are joined to the vertical frames (22 or 122).

[0017] According to the invention of claim 6 as described above, even if a load due to gravity or the like acts on the horizontal frame (23 or 123), the horizontal frame (23 or 123) is unlikely to come off the vertical frame (22 or 122).

[0018] According to the invention of claim 7, a transportable wall unit to be erected as the exterior wall (12 or 112) of a building comprises an exterior wall (12 or 112) having an opening (19 or 119) extending from the inside to the outside, a frame (21 or 121) surrounding the opening (19 or 119) and joined to the outer surface of the exterior wall (12 or 112), and a sash (27 or 127) attached to the frame (21 or 121), and an insulating material (40 or 140) is attached to the outer surface of the exterior wall (12 or 112) outside the frame (21 or 121), so that the insulating material (40 or 140) is in contact with the frame (21 or 121).

[0019] According to the invention of claim 8, a transportable building material unit (20 or 120) to be attached to an exterior wall (12 or 112) having an opening (19 or 119) extending from the inside to the outside comprises a frame (21 or 121) which surrounds the opening (19 or 119) and is joined to the outer surface of the exterior wall (12 or 112), and a sash (27 or 127) which is attached to the frame (21 or 121), and an insulating material (40 or 140) is attached to the outer surface of the exterior wall (12 or 112) outside the frame (21 or 121), and the insulating material (40 or 140) is in contact with the frame (21 or 121). Effect of the Invention

[0020] According to the present invention, the insulating effect around the sash attached to the frame is high. [Brief description of the drawings]

[0021] [Figure 1] FIG. 2 is an exploded perspective view of the external insulation structure of the first embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the external insulation structure of the first embodiment. [Diagram 3] FIG. 2 is an exploded perspective view of the external insulation structure of the first embodiment. [Figure 4] 4 is a cross-sectional view of the lower part of the external insulation structure of the first embodiment. FIG. [Diagram 5] FIG. 2 is an exploded perspective view of the wall unit according to the first embodiment. [Figure 6] FIG. 2 is an exploded perspective view of the fitting unit of the first embodiment. [Figure 7] FIG. 11 is a perspective view of an external insulation structure according to a second embodiment. [Figure 8] FIG. 11 is a perspective view of an external insulation structure according to a second embodiment. [Figure 9] FIG. 11 is an exploded perspective view of a wall unit according to a second embodiment. [Figure 10] FIG. 11 is an exploded perspective view of the fitting unit of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, the embodiments will be described with reference to the drawings. The features and technical effects of the embodiments will be understood from the following detailed description and drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. The drawings are provided for illustrative purposes only, and therefore the scope of the present invention is not limited to the illustrations in the drawings.

[0023] ===First embodiment=== <1. External insulation structure> Figures 1 to 3 are exploded perspective views showing the external insulation structure of a wall-type building. Figure 4 is a cross-sectional view of the lower part of the external insulation structure. The cross section of Figure 4 is along a vertical plane perpendicular to the horizontal direction. The wall structure refers to a structure in which a building is supported by planar structural members such as walls and floors. The external heat insulation structure includes a wall unit 10, a heat insulating material 40, a waterproof / moisture permeable sheet 50, and an exterior material (not shown). In order to show the components of the external heat insulation structure, the waterproof / moisture permeable sheet 50 is omitted in Fig. 2, and the heat insulating material 40 and the waterproof / moisture permeable sheet 50 are omitted in Fig. 3.

[0024] (1) Wall unit The wall unit 10 comprises an exterior wall 12 and a fitting unit 20 .

[0025] The exterior wall 12 is a structure that resists the vertical load of the building. The exterior wall 12 has an opening 19 that penetrates from the interior to the exterior. The exterior wall 12 is formed in a gate shape so as to surround both sides and the top of the opening 19. A fitting unit 20 is attached to the outer surface of the exterior wall 12. The outer surface of the exterior wall 12 refers to the surface that faces the outdoors. The lower part of the fitting unit 20 protrudes below the bottom end of the exterior wall 12.

[0026] The fitting unit 20 is attached to the exterior wall 12 at a factory or a construction site. If the attachment is performed at a factory, the wall unit 10 in an assembled state is transported from the factory to the construction site. If the attachment is performed at a construction site, the fitting unit 20 in an assembled state is transported from the factory to the construction site, and then the fitting unit 20 is attached to the exterior wall 12. Whether the attachment is performed at a factory or a construction site, the insulation material 40, the waterproof / breathable sheet 50, and the exterior material are attached to the wall unit 10 at the construction site.

[0027] (1-1) Exterior wall The exterior wall 12 has sleeve wall panels 13 and 14, a hanging wall panel 15 and a frame body 16. The sleeve wall panel 13 is a structure that resists external loads. The sleeve wall panel 13 is a wooden panel with a hollow structure. The sleeve wall panel 13 has a rectangular frame with a pair of vertical frames and a pair of horizontal frames, two sheets of facing material that are attached to the front and back surfaces of the rectangular frame, respectively, to cover the inside of the rectangular frame, and one or more auxiliary crosspiece materials that are assembled vertically, horizontally, or vertically and horizontally inside the rectangular frame. The sleeve wall panel 13 may have a heat insulating material filled inside the rectangular frame. The sleeve wall panel 14 and the hanging wall panel 15 are wooden panels with a hollow structure, similar to the sleeve wall panel 13.

[0028] The sleeve wall panels 13, 14 are disposed with a gap therebetween. The upper end of the hanging wall panel 15 is aligned with the upper ends of the sleeve wall panels 13, 14, and the hanging wall panel 15 is disposed between the upper portions of the sleeve wall panels 13, 14. Both sides of the hanging wall panel 15 are joined to the sleeve wall panels 13, 14, respectively.

[0029] The frame body 16 is joined along the inner edges of the sleeve wall panel 13, the hanging wall panel 15 and the sleeve wall panel 14. The frame body 16 is formed in a gate shape so as to surround both sides and the top of the opening 19.

[0030] (1-2) Door and window unit The fitting unit 20 is a door unit such as a back door unit or a bay window unit.

[0031] The building and construction unit 20 has a frame 21 , a reinforcing material 25 , a sash 27 , a waterproof and moisture-permeable sheet 29 , a water-stopping material 31 and a sealing material 33 .

[0032] · Exposed frame The frame 21 surrounds the opening 19 of the exterior wall 12 and is joined to the outer surface of the exterior wall 12 with screws or the like. In particular, the frame 21 is overlapped in the projection direction of the frame body 16 of the exterior wall 12 and joined to the frame body 16 with screws or the like. For example, screws or the like are driven into the frame body 16 and the frame 21 at an angle to the projection direction from the inside of the frame body 16. The lower part of the frame 21 protrudes below the lower ends of the frame body 16 and the sleeve wall panels 13, 14. Projection refers to depth. The projection direction refers to the direction in which the frame body 16 and the frame 21 are viewed from the front, that is, the direction perpendicular to the outer surface of the exterior wall 12.

[0033] The sill 21 has a pair of vertical frames 22 and a pair of horizontal frames 23. The vertical frames 22 and the horizontal frames 23 are assembled into a rectangular frame to construct the sill 21. The vertical frames 22 are spaced apart from each other in the horizontal direction and extend parallel to each other in the up-down direction. The horizontal frames 23 are spaced apart from each other in the vertical direction and extend parallel to each other in the horizontal direction. The lower horizontal frame 23 is joined to the vertical frames 22 while being recessed from the vertical frames 22. Here, the fact that the lower horizontal frame 23 is recessed from the vertical frames 22 means that the end face of the horizontal frame 23 in the longitudinal direction of the lower horizontal frame 23 is abutted against the vertical frame 22. In this case, the lower horizontal frame 23 does not need to protrude downward from the lower end of the vertical frame 22, and the lower face of the lower horizontal frame 23 may be aligned with the lower end of the vertical frame 22. In this way, the lower horizontal frame 23 is joined to the vertical frames 22 while being biased against the vertical frames 22, which contributes to the lower horizontal frame 23 being less likely to come off the vertical frames 22 due to a downward load such as gravity. Similarly, the upper horizontal frame 23 is joined to the vertical frames 22 while being biased against the vertical frames 22. The lower cross frame 23 is positioned below the lower ends of the frame body 16 and the sleeve wall panels 13, 14.

[0034] Reinforcement The reinforcing material 25 is made of a square timber. The reinforcing material 25 is fixed to the inner surface of the horizontal frame 23 below the frame 21 with screws or the like. The inner surface of the horizontal frame 23 refers to the surface facing the interior of the building. The size of the reinforcing material 25 in the horizontal direction is longer than the size of the frame 21 in the horizontal direction. The reinforcing material 25 extends laterally from both sides of the frame 21. The lower ends of the portions extending in this way are abutted against the exterior wall 12. The portions extending in this way may be fixed to the lower end of the exterior wall 12 with screws or the like.

[0035] The reinforcement member 25 is disposed at the height of a horizontal member 60 that is horizontally installed along the periphery of the building. The horizontal member 60 is a foundation or a girth. In other words, when the exterior wall 12 is installed on the first floor, the horizontal member 60 is a foundation installed on the foundation, and when the exterior wall 12 is installed on the second floor or higher, the horizontal member 60 is a girth installed on the exterior wall of the lower floor. The horizontal member 60 has a storage recess 61 on its outer periphery. The length of the storage recess 61 in the horizontal direction is equal to the length of the reinforcement member 25 in the horizontal direction. The reinforcement member 25 is fitted into the storage recess 61 and placed on the foundation or the exterior wall of the lower floor. The horizontal frame 23, the reinforcement member 25, and the horizontal member 60 are fixed by driving long screws 80 or the like into the lower horizontal frame 23, the reinforcement member 25, and the horizontal member 60 from the outside. The reinforcement member 25 may be joined to the horizontal member 60 by an adhesive. The reinforcement member 25 may be joined to the horizontal member 60 by using a combination of screws and adhesive. The horizontal member 60 may be joined to the lower end of the exterior wall 12 by adhesive or screws, or both. The horizontal member 60 may be joined to the floor panel 90 by adhesive or screws, or both. In addition, when the horizontal member 60 and the reinforcing member 25 are installed on a foundation, a ventilation base may be provided between the horizontal member 60 and the reinforcing member 25 and the foundation.

[0036] Waterproof and breathable sheet The waterproof / breathable sheet 29 is attached to the outer surfaces of the vertical frames 22 of the frame 21 by fasteners such as staples. The outer surfaces of the vertical frames 22 refer to the surfaces facing the outdoors. The waterproof / breathable sheet 29 protrudes outward from the side, top, and bottom edges of the vertical frames 22.

[0037] Water-stopping material The waterproof material 31 is attached to the lower horizontal frame 23. More specifically, the waterproof material 31 is attached to the outer surface and upper end of the lower horizontal frame 23 by fasteners such as staples. The outer surface of the lower horizontal frame 23 refers to the surface that faces outdoors.

[0038] Sash The sash 27 is a sliding bay window sash or a back door sash. The sash 27 has a sash frame and a shoji screen provided inside the sash frame. The shoji screen is, for example, a sliding bay window or a hinged door. The sash frame of the sash 27 is partially fitted inside the frame 21 and is overlapped on the outer surface of the frame 21 and fixed to the frame 21. The waterproof / breathable sheet 29 and the water-stopping material 31 are sandwiched between the sash frame of the sash 27 and the frame 21. Note that the shoji screen is omitted from the drawing so that components other than the shoji screen can be shown in the drawing.

[0039] · Sealing materials The sealing material 33 is attached to the outer peripheral flange of the sash 27. The sealing material 33 protrudes outward from the outer peripheral flange of the sash 27 and is attached to the waterproof / moisture-permeable sheet 29 and the frame 21. The sealing material 33 is made of, for example, a butyl adhesive tape.

[0040] (2) Insulation materials The heat insulating material 40 is made of, for example, rock wool, glass wool, urethane foam, or cellulose fiber. The heat insulating material 40 may be formed in a panel shape.

[0041] The insulating material 40 is attached to the outer surface of the exterior wall 12 outside the frame 21. The insulating material 40 may be attached to the exterior wall 12 in any manner. For example, the insulating material 40 is supported, attached, fixed, or bonded to the exterior wall 12. The insulating material 40 is in contact with, supported, attached, fixed, or bonded to the frame 21.

[0042] (3) Waterproof and breathable sheet The waterproof / breathable sheet 50 is attached to the heat insulating material 40 so as to cover the heat insulating material 40 from the outdoors.

[0043] (4) Exterior materials The exterior material covers the waterproof / breathable sheet 50 from the outdoors and is fixed to the heat insulating material 40 or the exterior wall 12 via furring strips or the like.

[0044] <2. Manufacturing method of external insulation structure (when fitting units are installed at a factory)> (1) Factory process As shown in Fig. 5, the following steps (1-1) to (1-8) are carried out in a factory. The steps (1-1) to (1-8) may be carried out in any order. Some of the steps (1-1) to (1-8) may be carried out in parallel.

[0045] (1-1) Creating the exterior walls The sleeve wall panels 13, 14 are arranged with a gap between them. The upper end of the hanging wall panel is aligned with the upper ends of the sleeve wall panels 13, 14, and the hanging wall panel 15 is arranged between the upper parts of the sleeve wall panels 13, 14. Both sides of the hanging wall panel 15 are joined to the sleeve wall panels 13, 14, respectively, by screws, adhesive, or both. The frame body 16 is assembled by aligning the frame body 16 along the inner edges of the sleeve wall panels 13, 15, and 14, and the frame body 16 is joined to the sleeve wall panel 13, the hanging wall panel 15, and the sleeve wall panel 14 by screws, adhesive, or both.

[0046] (1-2) Creating a frame The pair of vertical frames 22 and the pair of horizontal frames 23 are framed in a rectangular shape using jigs, fixtures, etc. At this time, the upper and lower horizontal frames 23 are recessed relative to the left and right vertical frames 22, and the upper and lower horizontal frames 23 are joined to the left and right vertical frames 22.

[0047] (1-3) Applying waterproof and moisture-proof sheets The waterproof / breathable sheets 29 are attached to the outer surfaces of the vertical frames 22 of the frame 21 by fasteners such as staples.

[0048] (1-4) Applying waterproofing material The waterproof material 31 is attached to the outer surface and upper end of the horizontal frame 23 below the frame 21 by fasteners such as staples.

[0049] (1-5) Sash installation The sash 27 is partially fitted inside the frame 21, and the sash 27 is overlapped on the outer surface of the frame 21, thereby sandwiching the waterproof / moisture-permeable sheet 29 and the water-stopping material 31 between the sash 27 and the frame 21. Thereafter, the sash 27 is fixed to the frame 21 with screws or the like.

[0050] (1-6) Installation of the frame The frame 21 is placed against the outer surface of the exterior wall 12 so as to surround the opening 19 of the exterior wall 12, and the lower horizontal frame 23 is positioned below the lower ends of the frame body 16 and the sleeve wall panels 13, 14. Screws are driven into the frame body 16 and the frame 21 from the inside of the frame body 16 of the exterior wall 12 at an angle to the projection direction, and the frame 21 is fixed to the frame body 16 of the exterior wall 12.

[0051] (1-7) Installation of reinforcement The reinforcing material 25 is applied to the inner surface of the horizontal frame 23 below the frame 21. At this time, the reinforcing material 25 is extended laterally from both sides of the frame 21, and the extended parts are applied to the lower end of the exterior wall 12. Then, the reinforcing material 25 is fixed to the horizontal frame 23 below with screws or the like.

[0052] (1-8) Attaching the support material Small pieces of plywood are prepared as support materials 35, 36. The support material 35 is placed against the outer surface of the reinforcing material 25 and the outer surface of the sleeve wall panel 13. The support material 35 is temporarily fastened to the reinforcing material 25 with screws or the like. If necessary, the support material 35 is temporarily fastened to the sleeve wall panel 13 with screws or the like. Similarly, the support material 35 is temporarily fastened to the reinforcing material 25, and if necessary, the support material 35 is temporarily fastened to the sleeve wall panel 14.

[0053] The support materials 35, 36 reinforce the lower portions of the sleeve wall panels 13, 14, and contribute to preventing twisting of the exterior wall 12. In other words, the support materials 35, 36 resist a load that would cause the lower portion of the sleeve wall panel 13 to twist in the vertical direction of the sleeve wall panels 13, 14 relative to the lower portion of the sleeve wall panel 14.

[0054] (2) Transportation The wall units 10 are loaded onto a transport aircraft and transported from the factory to the construction site.

[0055] (3) Construction site process The following steps (3-1) to (3-5) are carried out at the construction site. The steps (3-1) to (3-5) may be carried out in any order. Some of the steps (3-1) to (3-5) may be carried out in parallel.

[0056] (3-1) Installation of horizontal members and floor panels A horizontal member 60 is installed on the exterior wall or foundation of the lower floor, and a storage recess 61 is formed in the horizontal member 60. A plurality of floor panels 90 are laid out at the same height as the horizontal member 60, and these floor panels 90 are joined together and joined to the horizontal member 60 with screws 81 or the like.

[0057] (3-2) Installation of the wall unit Adhesive is applied to the inner surface of the reinforcing material 25, and also to the lower ends of the sleeve wall panels 13, 14. The wall unit 10 is hoisted using a wall crane or the like. Then, the reinforcing material 25 of the wall unit 10 is fitted into the accommodation recess 61, the reinforcing material 25 is placed on the outer wall or foundation of the lower floor, and the reinforcing material 25 is adhered to the horizontal material 60. Additionally, the sleeve wall panels 13, 14 are placed on the ends of the horizontal material 60 and floor panel 90, and the sleeve wall panels 13, 14 are adhered to the ends of the horizontal material 60 and floor panel 90. The horizontal frame 23 and reinforcing material 25 below the sill 21 are fixed to the horizontal material 60 with long screws 80 or the like.

[0058] After the wall unit 10 is installed, the supports 35,36 are removed from the stiffener 25 and the sleeve wall panels 13,14.

[0059] (3-3) Outer insulation The insulation material 40 is applied to the outer surface of the exterior wall 12 outside the frame 21, and the insulation material 40 is supported, attached, fixed or adhered to the exterior wall 12.

[0060] (3-4) Applying waterproof and breathable sheets The heat insulating material 40 is covered with the waterproof / moisture permeable sheet 50 from the outdoors, and the waterproof / moisture permeable sheet 50 is fixed to the heat insulating material 40 by staples or the like. At this time, the waterproof / moisture permeable sheet 50 is overlapped on the waterproof / moisture permeable sheet 29 protruding from the building frame 21.

[0061] (3-5) Installation of exterior materials A furring strip or the like is installed, and the waterproof / breathable sheet 50 is covered with an exterior material from the outdoors.

[0062] <3. Manufacturing method for external insulation structure (when fitting units are installed at the construction site)> (1) Factory process As shown in Fig. 6, the following steps (1-1) to (1-5) are carried out in a factory. The steps (1-1) to (1-5) may be carried out in any order. Some of the steps (1-1) to (1-5) may be carried out in parallel.

[0063] (1-1) Creating a frame The pair of vertical frames 22 and the pair of horizontal frames 23 are framed in a rectangular shape using jigs, fixtures, etc. At this time, the upper and lower horizontal frames 23 are recessed relative to the left and right vertical frames 22, and the upper and lower horizontal frames 23 are joined to the left and right vertical frames 22.

[0064] (1-2) Applying waterproof and moisture-proof sheets The waterproof and moisture-permeable sheets 29 are attached to the outer surfaces of the vertical frames 22 of the frame 21 by fasteners such as staples.

[0065] (1-3) Applying waterproofing material The waterproof material 31 is attached to the outer surface and upper end of the horizontal frame 23 below the frame 21 by fasteners such as staples.

[0066] (1-4) Installation of sash The sash 27 is partially fitted inside the frame 21, and the sash 27 is overlapped on the outer surface of the frame 21, thereby sandwiching the waterproof / moisture-permeable sheet 29 and the water-stopping material 31 between the sash 27 and the frame 21. Thereafter, the sash 27 is fixed to the frame 21 with screws or the like.

[0067] (1-5) Installation of reinforcement The reinforcing material 25 is applied to the inner surface of the lower horizontal frame 23 of the frame 21. At this time, the reinforcing material 25 is extended laterally from both sides of the frame 21. Then, the reinforcing material 25 is fixed to the lower horizontal frame 23 with screws, adhesive, or the like.

[0068] (2) Transportation The fitting unit 20 is loaded onto a transport aircraft and transported from the factory to the construction site.

[0069] (3) Construction site process The following steps (3-1) to (3-6) are carried out at the construction site. The steps (3-1) to (3-6) may be carried out in any order. Some of the steps (3-1) to (3-6) may be carried out in parallel.

[0070] (3-1) Installation of horizontal members and floor panels A horizontal member 60 is installed on the exterior wall or foundation of the lower floor, and a storage recess 61 is formed in the horizontal member 60. A plurality of floor panels 90 are laid out at the same height as the horizontal member 60, and these floor panels 90 are joined together and the floor panels 90 are joined to the horizontal member 60.

[0071] (3-2) Creating the exterior walls Adhesive is applied to the lower end of the sleeve wall panel 13. The sleeve wall panel 13 is hoisted with a crane or the like, and placed on the ends of the horizontal members 60 and the floor panel 90, and the sleeve wall panel 13 is adhered to the ends of the horizontal members 60 and the floor panel 90. The sleeve wall panel 14 is installed in a similar manner. Adhesive is applied to the side edges of the hanging wall panel 15. The hanging wall panel 15 is hoisted by a crane or the like, and placed between the upper parts of the sleeve wall panels 13, 14, and the hanging wall panel 15 is adhered to the sleeve wall panels 13, 14. The frame body 16 is assembled by fitting the frame body 16 along the inner edges of the sleeve wall panel 13, the hanging wall panel 15 and the sleeve wall panel 14, and the frame body 16 is joined to the sleeve wall panel 13, the hanging wall panel 15 and the sleeve wall panel 14 by screws or adhesive or both.

[0072] In the above description, the exterior wall 12 is erected while being assembled. However, the exterior wall 12 may be assembled first and then erected.

[0073] (3-3) Installation of fitting units Adhesive is applied to the inner surface of the reinforcing material 25 of the fitting unit 20. The fitting unit 20 is lifted by hand or by a crane or the like. Then, the reinforcing material 21 of the fitting unit 20 is placed against the outer surface of the outer wall 12 so as to surround the opening 19 of the outer wall 12 with the reinforcing material 21. At this time, the lower horizontal frame 23 is placed below the lower end of the frame body 16 of the outer wall 12 and the sleeve wall panels 13, 14, the reinforcing material 25 is fitted into the receiving recess 61, the reinforcing material 25 is placed on the outer wall or foundation of the lower floor, and the reinforcing material 25 is bonded to the horizontal material 60. The lower horizontal frame 23 and the reinforcing material 25 are fixed to the horizontal material 60 by long screws 80 or the like. Screws are driven obliquely from the inside of the frame body 16 of the outer wall 12 and the reinforcing material 21 to fix the reinforcing material 21 to the frame body 16 of the outer wall 12.

[0074] (3-4) Outer insulation The insulation material 40 is applied to the outer surface of the exterior wall 12 outside the frame 21, and the insulation material 40 is supported, attached, fixed or adhered to the exterior wall 12.

[0075] (3-5) Applying waterproof and breathable sheets The heat insulating material 40 is covered with the waterproof / moisture permeable sheet 50 from the outdoors, and the waterproof / moisture permeable sheet 50 is fixed to the heat insulating material 40 by staples or the like. At this time, the waterproof / moisture permeable sheet 50 is overlapped on the waterproof / moisture permeable sheet 29 protruding from the building frame 21.

[0076] (3-6) Installation of exterior materials A furring strip or the like is installed, and the waterproof / breathable sheet 50 is covered with an exterior material from the outdoors.

[0077] <4. Summary> As described above, the exterior wall 12 has the opening 19 that penetrates from the inside to the outside. The frame 21 surrounds the opening 19 and is joined to the outer surface of the exterior wall 12, and the sash 27 is attached to the frame 21. The insulation material 40 is attached to the outer surface of the exterior wall 12 outside the frame 21. The insulation material 40 contacts the frame 21, and there is no gap between the insulation material 40 and the frame 21. Therefore, the insulation effect around the sash 27 is high.

[0078] The frame 21 projects downward from the lower end of the exterior wall 12, and the reinforcing material 25 is joined to the inner surface of the projecting portion, and the reinforcing material 25 extends laterally from both sides of the frame 21, and the extended portions are abutted against the lower end of the exterior wall 12. The sleeve wall panels 13, 14 of the exterior wall 12 are supported by the reinforcing material 25. Such a reinforcing material 25 resists a load that would twist the sleeve wall panel 13 relative to the sleeve wall panel 14 in the vertical direction of the exterior wall 12, and suppresses distortion of the exterior wall 12 and the frame 21. Therefore, the reinforcing material 25 maintains the state in which the insulation material 40 is in contact with the frame 21, contributing to maintaining the insulation effect around the frame 21.

[0079] The horizontal member 60 has an accommodation recess 61 on its outer surface, the exterior wall 12 is installed on the horizontal member 60, and the reinforcing member 25 is fitted into the accommodation recess 61 from above. This allows the reinforcing member 25 to fit snugly. This stabilizes the reinforcing member 25 and prevents deformation and warping of the reinforcing member 25. Warping of the exterior wall 12 and the frame 21 is also suppressed, and the insulating material 40 is maintained in contact with the frame 21. Therefore, the insulating effect around the frame 21 is maintained.

[0080] Long screws 80 are driven from the outside into the horizontal frame 23, the reinforcing material 25, and the horizontal member 60. The reinforcing material 25 and the horizontal frame 23 are stably fixed to the horizontal member 60, and the reinforcing material 25 prevents deformation and distortion of the exterior wall 12 and the frame 21. This keeps the insulation material 40 in contact with the frame 21, and maintains the insulation effect around the frame 21.

[0081] The horizontal frame 23 of the frame 21 is joined to the vertical frame 22 while being biased against the vertical frame 22 of the frame 21. Therefore, even if a load due to gravity or the like acts on the horizontal frame 23, the horizontal frame 23 is unlikely to come off the vertical frame 22.

[0082] In recent years, there has been a demand for a carbon-neutral society that reduces carbon dioxide emissions to virtually zero, and for the Sustainable Development Goals (SDGs), and the construction industry is also working to build buildings out of wood, which produces less carbon dioxide. Since buildings to which external insulation structures are applied are made of wood, the exterior structures and buildings can contribute to the promotion of carbon neutrality, the realization of a carbon-neutral society, and the achievement of the Sustainable Development Goals. Because the external insulation structure prevents the cold air from air conditioning or the warm air from heating from being released outdoors, the external insulation structure contributes to reducing carbon dioxide emissions and energy consumption.

[0083] ===Second embodiment=== Fig. 7 is a perspective view of the external thermal insulation structure of the second embodiment. Fig. 8 is a perspective view of the external thermal insulation structure of the second embodiment. Fig. 9 is an exploded perspective view of the wall unit of the second embodiment. Fig. 10 is an exploded perspective view of the fitting unit of the second embodiment. In Fig. 8, the waterproof moisture permeable sheet 150 is omitted. The reference symbols of corresponding components in the external thermal insulation structure of the second embodiment and the external thermal insulation structure of the first embodiment have the same last two digits.

[0084] The external insulation structure of the second embodiment differs from the external insulation structure of the first embodiment in the following respects: In other respects, the external insulation structure of the second embodiment is provided in the same manner as the external insulation structure of the first embodiment, and is identical to the external insulation structure of the first embodiment.

[0085] In the first embodiment, the fitting unit 20 is a sweep-out window unit or a door unit, and the sash 27 is a sliding sweep-out window sash or a back door sash. In contrast, in the second embodiment, the fitting unit 120 is a waist-high window unit, and the sash 127 is a waist-high window sash.

[0086] In the first embodiment, the exterior wall 12 surrounds both sides and the top of the opening 19, and the opening 19 is open at the lower end of the exterior wall 12. In contrast, in the second embodiment, the exterior wall 112 surrounds both sides, the top and bottom of the opening 119, and the bottom of the opening 119 is closed. In the second embodiment, the exterior wall 112 has a waist wall panel 117 in addition to the sleeve wall panels 113, 114, the hanging wall panel 115 and the frame body 116. The waist wall panel 117 is separated below the hanging wall panel 115 by the opening 119, and the lower end of the waist wall panel 117 is aligned with the lower ends of the sleeve wall panels 113, 114, and the waist wall panel 117 is disposed between the lower parts of the sleeve wall panels 113, 114. Both sides of the waist wall panel 117 are joined to the sleeve wall panels 113, 114, respectively. The frame body 116 is joined along the inner edges of the sleeve wall panel 113, the hanging wall panel 115, the sleeve wall panel 114 and the waist wall panel 117. The frame body 116 is formed into a rectangular frame shape so as to surround both sides, the top and bottom of the opening 119. The raised frame 121 is overlapped in the projection direction of the frame body 116 of the exterior wall 112 and joined to the frame body 116 with screws or the like. The raised frame 121 does not protrude from the lower end of the exterior wall 112.

[0087] In the second embodiment, there is no equivalent to the reinforcing member 25 in the first embodiment. In the first embodiment, the horizontal member 60 has an accommodating recess 61, but in the second embodiment, no accommodating recess is formed in the horizontal member. [Explanation of symbols]

[0088] 10,110 Wall unit 12,112 Exterior wall 19,119 Openings 21,121 Folding frame 22,122 Vertical frame 23,123 horizontal stile 25 Reinforcement 27,127 Sash 40,140 Insulation 60 Horizontal material 61 Recessed part 80 Long Screw

Claims

1. In the external insulation structure of buildings, An exterior wall having an opening extending from the inside to the outside; A frame that surrounds the opening and is joined to the outer surface of the outer wall; A sash attached to the frame; A heat insulating material is attached to the outer surface of the exterior wall outside the frame and in contact with the frame; An external insulation structure comprising:

2. The external insulation structure according to claim 1, Further comprising a reinforcing material, The opening is opened at the lower end of the outer wall, the frame protrudes downward from the lower end of the outer wall, the reinforcing material is joined to the inner surface of the protruding portion, the reinforcing material extends laterally from both sides of the frame, and the protruding portions are abutted against the lower end of the outer wall. An external insulation structure.

3. The external insulation structure according to claim 2, A horizontal member provided horizontally along the periphery of the building has a storage recess on its outer surface, the exterior wall is installed on the horizontal member, and the reinforcing member is fitted into the storage recess from above. An external insulation structure.

4. The external insulation structure according to claim 3, Screws are driven into the reinforcing material and the horizontal material from outside. An external insulation structure.

5. The external insulation structure according to claim 2 or 3, The sash is a bay window sash or a back door sash. An external insulation structure.

6. The external insulation structure according to any one of claims 1 to 4, The frame has a pair of upper and lower horizontal frames and a pair of horizontal vertical frames assembled into a rectangular frame shape, The end face of the horizontal frame in the longitudinal direction of the horizontal frame is abutted against the vertical frame, and the horizontal frame is joined to the vertical frame. An external insulation structure.

7. In a transportable wall unit to be erected as the exterior wall of a building, An exterior wall having an opening extending from the inside to the outside; A frame that surrounds the opening and is joined to the outer surface of the outer wall; A sash attached to the frame; Equipped with A heat insulating material is attached to the outer surface of the outer wall outside the frame, and the heat insulating material is in contact with the frame. A wall unit characterized by:

8. A transportable building material unit to be attached to an exterior wall having an opening penetrating from the inside to the outside, A frame that surrounds the opening and is joined to the outer surface of the outer wall; A sash attached to the frame; Equipped with A heat insulating material is attached to the outer surface of the outer wall outside the frame, and the heat insulating material is in contact with the frame. A fitting unit characterized by:

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