JP7214285B1 - Outer heat insulation, moisture permeable, and earthquake-resistant structure that prevents heat bridging in wooden buildings - Google Patents

Abstract

The object of the present invention is to provide an exterior wall structure for a wooden building that ensures heat insulation performance and prevents the occurrence of heat bridges while improving workability. SOLUTION: The heat insulating, moisture permeable, and earthquake resistant structure has an exterior wall structure, and the exterior wall structure includes an interior base material, an exterior wall frame, a structural face material, a heat insulating layer, and an exterior material, which are laminated in this order. The exterior wall frame is composed of a plurality of structural members that are spaced apart from each other in the vertical and horizontal directions. A layer is formed. [Selection diagram] Fig. 1

Description

The present invention relates to the structure of a wooden building, and more specifically, it is adopted for the outer thermal insulation, moisture-permeable, and earthquake-resistant structure of a wooden building. The present invention relates to an outer wall structure having a structure that improves heat insulating performance and prevents heat bridging.

In wooden buildings, there is a construction method in which an inner heat insulation layer is built into the frame composed of structural members such as pillars, studs, girders, sills, sills, and window sills, and an outer heat insulation layer is attached to the outside of the frame. Various proposals have been made. The applicant of the present application has also proposed an external heat-insulating, moisture-permeable, and earthquake-resistant structure disclosed in Patent Document 1. The structure disclosed in Patent Document 1 includes an outer wall structure in which an inner wall material, a moisture-proof sheet, an inner heat-insulating layer, a structural face material, a moisture-permeable waterproof sheet, an outer heat-insulating layer, and an exterior material are laminated in this order. . This structure is excellent in heat insulation, but further improvements are desirable in the following points.

The structure of Patent Document 1 has a thin outer heat insulating layer (typically, a beaded polystyrene foam board), and the inner heat insulating layer is a filling heat insulating layer (typically, rock wool heat insulating material) in the space of the frame. , The pillars and studs of the frame work as heat bridges, and the heat from the outside is transmitted to the inside in the summer, and the heat from the inside escapes to the outside in the winter. As a result, energy loss occurs in the heating and cooling of the room, and the comfort of the living room decreases.

In addition, in the structure of Patent Document 1, a moisture-tight sheet is placed around the inner heat insulating layer to prevent the heat insulating material (typically rock wool) of the inner heat insulating layer from absorbing water due to the entry of water vapor from the room. A moisture-permeable waterproof sheet is placed between the structural panel and the outer heat insulating layer. The precision with which these sheets are stretched largely depends on the skill of the craftsman, and depending on the skill, the airtightness performance may be greatly reduced.

Japanese Patent No. 6542740

In view of the above problems, it is an object of the present invention to provide an outer wall structure for a wooden building that ensures heat insulation performance and prevents the occurrence of heat bridges while improving workability.

The adiabatic, moisture-permeable, and earthquake-resistant structure according to the present invention has a heat insulating layer that covers the entire exterior of the building frame. It has a structure that exhibits the required heat insulation performance even without it. In this structure, it is preferable to further thicken the heat insulating layer, preferably to a thickness of 150 mm or more. By thickening the heat insulating layer, the heat insulating performance can be further improved.

When the outer heat insulating layer is thickened, the window part is bent, and the window becomes a characteristic design in which the window is greatly recessed from the outer wall surface. Therefore, a draining member for drainage is essential in the lower part of the window part, and the connecting part where the draining member is connected to the frame becomes a heat bridge. Therefore, the adiabatic, moisture-permeable, and earthquake-resistant structure according to the present invention adopts a structure in which a resin window frame is supported by a support portion formed of a high-density heat insulating material placed under the window frame, and the draining member is , preferably in contact with its support rather than the frame. Moreover, it is preferable that the draining member is arranged on the upper surface of the heat insulating layer, and an air layer is formed between the draining member and the upper surface of the heat insulating layer.

Furthermore, in the heat insulating, moisture permeable and earthquake resistant structure according to the present invention, it is preferable that the heat insulating layer of the outer wall structure and the heat insulating layer of the base structure are adjacent to each other. It is preferable that there is a space between the window sill and the cloth foundation on the indoor side of the portion where the two heat insulating layers are in contact, and the anti-termite sealing is arranged in the space. Further, it is more preferable that the heat insulating layer of the outer wall structure and the heat insulating layer of the base structure are adjacent to each other with an anti-termite sheet interposed therebetween.

The present invention provides an outer thermal insulation, moisture-permeable, and earthquake-resistant structure that prevents heat bridging in a wooden building. The heat-insulating, moisture-permeable, and earthquake-resistant structure includes an exterior wall structure, and the exterior wall structure is composed of an interior base material, an exterior wall frame, a structural face material, a heat insulating layer, and an exterior material, which are laminated in this order. The exterior wall frame is composed of a plurality of structural members that are spaced apart from each other in the vertical and horizontal directions. A layer is formed.

In one embodiment, the thickness of the heat insulating layer is preferably 150 mm or more. Moreover, it is preferable to have a moisture-permeable waterproof film between the structural face material and the heat insulating layer.

In one embodiment, the exterior wall structure further comprises a window having a window frame. In the window portion, the heat insulating layer preferably has a window supporting portion formed of a high-density heat insulating material having a greater compressive strength than the heat insulating layer so as to support at least a portion of the lower portion of the window frame. In one embodiment, the window support is located on a cutaway side provided on top of the insulating layer. In another embodiment, the insulation layer includes a window support insulation layer disposed thereon, and the window support is integrally formed with the window support insulation layer. The window support is preferably formed of high density beaded polystyrene foam insulation with high screw pull-out resistance.

In one embodiment, the upper end surface of the heat insulating layer is formed as an inclined surface that slopes forward toward the outside, and a draining member is arranged on the inclined surface. A static air layer is provided between the draining member and the upper end surface of the heat insulating layer. The draining member is attached to the window sill included in the exterior wall skeleton, which penetrates the window support and the structural panel at the rear end on the indoor side and supports the indoor side from at least a part of the lower part of the window frame. It is fixed by a fixing member that reaches.

In one embodiment, the thermal insulation, moisture-permeable, and earthquake-resistant structure further includes a foundation structure having a continuous foundation and a continuous foundation insulation layer disposed on the outdoor side thereof. It is preferable that the heat insulating layer of the outer wall structure and the fabric base heat insulating layer are arranged adjacent to each other. It is preferable that the exterior wall frame includes a base disposed on the upper end of the concrete foundation, and an anti-termite sealing is disposed in the space surrounded by the insulation layer, the concrete foundation insulation layer, the concrete foundation and the foundation. It is preferable that the heat insulating layer and the fabric base heat insulating layer are adjacent to each other with an anti-termite sheet interposed therebetween.

1 is a vertical cross-sectional view of a part of a wooden building using a heat-insulating, moisture-permeable, and earthquake-resistant structure according to an embodiment of the present invention; FIG. 1 shows an exterior wall structure according to an embodiment of the present invention, (A) is a perspective view of part of the exterior wall structure, and (B) is a cross-sectional view of part of the exterior wall structure. 1 is a vertical cross-sectional view of a window part and its peripheral part of an exterior wall structure according to an embodiment of the present invention; FIG. 1 is a cross-sectional view of a window and its periphery of an exterior wall structure according to an embodiment of the present invention; FIG. FIG. 10 shows a window lower frame support part of an exterior wall structure according to an embodiment of the present invention, (A) is a perspective view when a heat insulating layer and a window lower frame support part are formed separately, and (B) is a perspective view of the case. [FIG. 2] is a perspective view when a heat insulating layer and a window lower frame support portion are integrally formed; 1 is a partial perspective view of a draining member used in a window portion of an exterior wall structure according to an embodiment of the present invention; FIG. FIG. 4 is a vertical cross-sectional view of a connecting portion between an exterior wall structure and a foundation structure according to one embodiment of the present invention;

An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 7. FIG.

FIG. 1 is a longitudinal sectional view of a portion of a wooden building 1 using a heat insulating, moisture permeable and earthquake resistant structure according to one embodiment of the invention. Figure 2 shows an exterior wall structure 7 according to an embodiment of the present invention, (A) is a perspective view of a portion of the exterior wall structure 7, and (B) is a cross section of a portion of the exterior wall structure 7. It is a plan view. FIG. 3 is a vertical cross-sectional view of the window portion 8 and its peripheral portion of the exterior wall structure 7 according to one embodiment of the present invention. FIG. 4 is a cross-sectional view of the window portion 8 and its peripheral portion of the exterior wall structure 7 according to one embodiment of the present invention. FIG. 5 shows a part of the thermal insulation layer and the window support part under the window of the exterior wall structure 7 according to one embodiment of the present invention, and (A) shows the thermal insulation layer 611 and the window support part 611c as separate bodies. FIG. 13B is a perspective view of the case where the heat insulating layer 611 and the window lower frame support portion 611c are formed integrally; FIG. FIG. 6 is a perspective view of part of a draining member 83 used in the window portion 8 of the exterior wall structure 7 according to one embodiment of the present invention.

(Outer wall structure)
A wooden building 1 having an outer thermal insulation, moisture-permeable, and earthquake-resistant structure according to the present invention is a wooden building having a framework and a roof truss, and the thermal insulation, moisture-permeable, and earthquake-resistant structure has an exterior wall structure. The outer wall structure according to one embodiment of the present invention includes an interior base material 77, an outer wall frame 2, a structural face material 27, a heat insulating layer 61, and a wall coating (exterior material) 71 in this order from the indoor side to the outdoor side. Laminated.

For the interior base material 77, for example, a general-purpose gypsum board can be used. On the interior base material 77, wallpaper, paint, painted walls, etc. (not shown) are placed to finish the interior walls.

The outer wall skeleton 2 is arranged on the outdoor side of the interior base material 77 . The exterior wall frame 2 has a general structure adopted in a wooden frame construction method, and is composed of a plurality of structural members arranged at intervals in the vertical and horizontal directions. The plurality of structural members can be, for example, bases 21 , posts 22 , studs 23 , girder 24 , girders 25 and sills 26 .

The structural face material 27 is a plate-like material that can resist horizontal force to the building so as to exhibit the earthquake resistance of the wooden building 1, and any material that can permeate the heat insulation layer 61 from the inside of the room. good. As the structural surface material 27, a thin rigid plate such as structural plywood or structural panel can be used. Dylite MS) can be used.

A still air layer 78 is formed in the space inside the outer wall frame 2 by covering the indoor side of the outer wall frame 2 with the interior base material 77 and covering the outdoor side with the structural surface material 27 . More specifically, the still air layer 78 is formed in a space defined by a plurality of structural members forming the outer wall frame 2 , the interior base material 77 , and the structural surface material 27 . Since the still air layer 78 is a layer of air with low heat conductivity (thermal conductivity of 0.024 W/(m·K)), it has high heat insulation performance. Further, since the interior base material 77 for forming the static air layer 78 and the structural surface material 27 are separated by a distance corresponding to the thickness of the outer wall frame 2, heat conduction does not occur between them. Furthermore, there is no convective heat transfer due to the stationary air layer. Only radiant heat transfer occurs between the interior furring 77 and the structural facing 27 due to temperature differences. Since the interior base material 77 and the structural surface material 27 are in contact with the structural members of the outer wall frame 2, heat conduction occurs between them, but the heat insulation layer 61, which will be described later, makes it difficult to be affected by outdoor heat. Heat bridging can be prevented.

The heat insulating layer 61 is attached to the structural panel 27 using, for example, a general-purpose acrylic resin-based adhesive 712 . The heat insulating layer 61 is preferably capable of transmitting moisture from the structural surface material 27 to the coated wall (exterior material) 71 side and has low thermal conductivity. The heat insulating layer 61 is thicker than the outer heat insulating layer in a conventional wooden building (for example, the outer heat insulating layer in Patent Document 1 is 40 mm), and preferably has a thickness of 150 mm or more. The heat insulating layer 61 is not limited, but a bead method polystyrene foam having a thermal conductivity of 0.033 W/m·K or less can be used.

The outer wall structure according to the present invention increases the thermal resistance value of the heat insulating layer 61, eliminates the inner heat insulating layer and uses a static air layer, and improves workability by saving labor, while not using the outer wall frame 5 as a heat bridge. It is. For example, Patent Document 1 discloses a heat insulating structure in which an outer heat insulating layer and an inner heat insulating layer are combined. The outer heat insulating layer typically has a thickness of 40 mm and a thermal conductivity of 0.037 W/m K The polystyrene foam board and the inner heat insulating layer are typically made of rock wool heat insulating material with a thickness of 100 mm and a thermal conductivity of 0.038 W/m·K. In this case, the thermal resistance value is approximately 3.71 W/m ² ·K. On the other hand, the thermal insulation layer 61 has a thermal resistance value of about 4.54 W/m ² ·K when a bead method polystyrene foam with a thickness of 150 mm and a thermal conductivity of 0.033 W/m · K is used. The heat insulation performance is equivalent to that of the heat insulation structure combining the outer heat insulation layer and the inner heat insulation layer, or higher if the effect of the static air layer is taken into account. As a matter of course, if a material with a higher heat insulating effect such as carbon-filled bead polystyrene foam (which has a maximum heat insulating property of 20% higher than the bead polystyrene foam described above) is used as the outer heat insulating layer, the present invention can be used. The outer wall structure related to exhibits even higher heat insulation performance

A moisture-permeable waterproof coating 711 is preferably arranged between the structural panel 27 and the heat insulating layer 61 . The moisture-permeable waterproof coating 711 is preferably formed of a moisture-permeable waterproof paint (for example, Sto Guard, product name: Sto Guard, manufactured by Sto Japan Co., Ltd.) applied to the surface of the structural surface material 27 .

An exterior material 71 is arranged on the outdoor side of the heat insulating layer 61 . Exterior material 71 may include, but is not limited to, base coats 713 and 714, reinforcing mesh 715, and top coat 716, for example. In one embodiment, the insulating layer 61 is coated with a base coat 713 (for example, Sto Armat Classic Plus, trade name: Sto Armat Classic Plus) and a reinforcing mesh 715 (for example, Sto Japan Co., trade name: Sto fiberglass mesh). A base coat 714 is further applied to the outside thereof, and a top coat 716 (trade name: Stolit and Lotusn) is applied thereon to finish the exterior material.

(window)
Next, the window part 8 provided in the outer wall structure will be described. FIG. 3 is a longitudinal sectional view showing the window portion 8 and its surroundings, and FIG. 4 is a horizontal sectional view showing the window portion 8 and its surroundings. In FIG. 3, part of the intermediate portion (opening portion of the window) is omitted, and in FIG. 4, only one side of the window portion 8 having a bilaterally symmetrical structure is shown.

The window part 8 has a window frame 81 . A window frame made of resin or a window frame made of aluminum can be used as the window frame 81, but it is more preferable to use a window frame made of resin, which is less likely to conduct heat than aluminum. However, since the resin window frame is inferior in strength to the aluminum window frame, its cross-sectional shape is large.

The window frame 81 has projecting pieces 811 and 812 . The protruding piece 811 is placed on the outer wall frame 2 on the long sides of the window sills 821, window lintels 822, and mullions 823, which are window reinforcing materials (that is, the sides extending in the thickness direction of the outer wall frame 2), It is fixed using fasteners 813 such as screws. The protruding pieces 812 are fixed to the short sides of the window sill 821, the window lintel 822, and the mullion 823 (that is, the sides extending in the height direction of the outer wall frame 2) using fasteners 814 such as screws. be. In this way, the window frame 81 can be fixed to the exterior wall frame 2 .

Between the outside of the upper part of the window frame 81 (upper window frame 81a) and the heat insulating layer 61 (window upper heat insulating layer 612), and between both side frames of the window frame 81 and the heat insulating layer 61 (window side heat insulating layer 613) , the sealant 843 prevents rainwater from entering. As the sealing material 843, for example, a sealing tape that expands over time and follows expansion and contraction of walls and windows can be used. In this exterior wall structure, a thick window top heat insulation layer 612, for example, a window top heat insulation layer 612 having a thickness of 150 mm or more is used. and creates a characteristic appearance as a wooden building. An exterior material 71 is arranged on the lower end surface of the covering portion, that is, the upper window heat insulating layer 612 . Similarly, an interior base material 77 is arranged on the indoor-side covering portion of the upper window frame 81 a , that is, on the lower surface of the window lintel 822 .

The heat insulating layer 61 (lower window heat insulating layer 611) positioned below the lower portion of the window frame 81 (lower window frame 81b) has an upper end face that extends from the indoor side to the outdoor side, as shown in FIGS. It is formed as an inclined surface 611a that slopes forward downward toward the outside, and has a missing side 611b that is formed as a step extending downward from the indoor-side end of the inclined surface 611a on the upper indoor side. A window support portion 611c having a width and length corresponding to the missing side 611b and having a height higher than the indoor-side end of the inclined surface 611a is arranged on the missing side 611b.

The window support portion 611c can support at least a portion of the lower window frame 81b, more specifically, a portion on the outdoor side from the projecting piece 812, as shown in FIG. A portion of the lower window frame 81b on the indoor side from the projecting piece 812 can be supported by a window sill 821 whose upper surface is flush with the window support portion 611c. The window support part 611c preferably has a low thermal conductivity and a high compressive strength so as to support the window frame 81. It is more preferable to be composed of a high-density heat insulating material that has a high pull-out resistance, such as, but not limited to, a heat insulating material using high-density bead-method polystyrene foam.

As the high-density heat insulating material forming the window support portion 611c, for example, high-density bead polystyrene foam (blaugelb Insulation Panel MultiPro EPS) manufactured by blaugelb can be used. It has a thermal conductivity of 0.040 W/m·k, a compressive strength of 1,260 kg/dm ² , and a screw pull-out value of 1200 N (for a screw with a diameter of 7.5 mm and a length of 42 mm). If so, at least part of the lower portion of the window frame 81 can be directly supported, and the window support portion 611c will not form a heat bridge.

In another embodiment, as shown in FIG. 5B, a window support insulation layer 611d formed of high density beaded polystyrene foam is placed on top of the insulation layer 611' under the window, and the insulation layer 611' And the entire window-supporting heat-insulating layer 611 d can be used as the under-window heat-insulating layer 611 . A window support insulation layer 611d is disposed on the top surface 611'a of the insulation layer 611'. The upper surface of the window supporting heat insulating layer 611d is formed as an inclined surface 611d1 that is inclined downward from the indoor side to the outdoor side. It has a window support 611d2 formed as a . The window supporting heat insulating layer 611d shown in FIG. 5B can be produced by cutting the upper surface of a heat insulating material formed of high-density bead method polystyrene foam. By forming the window support portion 611d2 in this manner, the window frame 81 (lower window frame 81b) can be supported more firmly, and airtightness can be ensured more reliably.

Here, as described above, in the outer wall structure according to the present invention, the inner heat insulating layer is eliminated to form a still air layer, which is arranged on the outdoor side of the outer wall frame 2 in order to ensure high heat insulating performance. The heat insulating layer 61 is thick. If the heat insulating layer 61 is made thicker, as already explained, the window frame 81 is pushed inwardly beyond the outermost surface of the outer wall structure. Therefore, it is preferable that the draining member 83 is arranged on the inclined surface 611a in order to protect the inclined surface 611a of the under-window heat insulating layer 611 and guide the rainwater to the outside.

The draining member 83 has an inclined side 831 arranged parallel to the inclined surface 611a of the under-window heat insulating layer 611, as shown in FIGS. An upwardly extending rising side 832 is provided on the indoor side edge (rear end) of the inclined side 831 , and a downwardly extending falling side is provided on the outdoor side edge (front end) of the inclined side 831 . 833 is erected. A plurality of leg portions 834 having an L-shaped cross section are formed on the lower surface of the inclined side 831 and extend in the width direction of the draining member 83 (that is, the direction perpendicular to the paper surface of FIG. 3).

The draining member 83 has a plurality of legs 834 having an L-shaped cross section. The indoor side surface of the side 832 is arranged so as to be in contact with the window support portion 611c. The draining member 83 arranged in this manner is fixed by fasteners 835 and 836 such as screws. A fixture (fixing member) 835 is inserted from the outdoor side of the rising edge 832 through the window support portion 611c, the projecting piece 812 of the lower window frame 81b, and the structural panel 27 so as to reach the window sill 821. be. Fixture 835 does not form a large heat bridge because it does not involve any material with high thermal conductivity. The fixture 836 is inserted through the inclined side 831 so as to reach the under-window heat insulating layer 611 .

Between the upper surface of the inclined side 831 of the draining member 83 and the lower surface of the lower window frame 81b, a sealing material 841 is arranged so as to be in contact with the rising edge 832, and between the lower surface of the inclined side 831 and the exterior material 71 A sealing material 842 is placed. Due to the arrangement of the sealing material 842, a sealed static air layer is formed between the draining member 83 and the under-window heat insulating layer 611, so that the heat insulating effect of the air is exhibited.

A wooden window sill 85 is arranged on the indoor side of the lower window frame 81b so that one end is in contact with the indoor side of the lower window frame 81b and the other end protrudes from the interior side surface of the interior base material 77. be.

(foundation structure)
The adiabatic, moisture-permeable, and earthquake-resistant structure according to the present invention further has a foundation structure. A foundation structure according to one embodiment of the present invention, as shown in FIG. A base coating wall 79 is further arranged on the outdoor side of the fabric base heat insulation layer 63 .

In conventional wooden buildings, floor insulation is generally adopted, but in the wooden building 1 having the heat insulating, moisture-permeable, and earthquake-resistant structure according to the present invention, the continuous foundation insulation layer 63 is adopted. , the temperature of the base space is higher than that of the floor insulation, so the humidity is low and dry throughout the year, and the heat is taken away under the floor in the summer, so it is cooler than the floor insulation. Furthermore, the foundation space is naturally ventilated by drafts, so there is no need to worry about condensation. As the fabric base heat insulating layer 63, for example, a bead method polystyrene foam heat insulating material having a thickness of 100 mm and a thermal conductivity of 0.034 W/m·K for termite prevention can be used, although it is not limited thereto.

The foundation structure further has an earth floor 52 and an under-earth insulation layer 64 disposed thereunder. An anti-termite and moisture-proof sheet 67 is preferably placed under the under-floor heat insulating layer 64 . By arranging the under-floor heat insulating layer 64 and the termite-proof and moisture-proof sheet 67 under the earth floor 52, it is possible to block the heat from the ground and prevent the rise of moisture and the entry of ants. As the anti-termite moisture-proof sheet 67, for example, Termidan sheet manufactured by Nitto L-Material Co., Ltd. can be used, although not limited thereto. As the under-floor heat insulation layer 64, although not limited, for example, an extruded polystyrene foam heat insulation material having a low water absorption thickness of 50 mm and a thermal conductivity of 0.028 W/m·K can be used.

FIG. 7 is an enlarged vertical cross-sectional view of a connecting portion between the outer wall structure and the base structure. In conventional wooden buildings, generally, a gap is provided between the lower end of the outer wall structure and the upper end of the foundation structure, and the upper end of the foundation structure is provided with a metal wall extending to the outer wall frame for the purpose of drainage. A drain is provided. Therefore, outdoor heat enters through the gap, and the metal drainer acts as a heat bridge. On the other hand, in the heat insulating, moisture permeable and earthquake resistant structure according to the present invention, the heat insulating layer 61 of the outer wall structure and the foundation heat insulating layer 63 of the foundation structure are arranged so as to be adjacent to each other. Therefore, outdoor heat can be effectively blocked between the outer wall structure and the base structure, and heat bridges do not occur.

The continuous foundation 51 has a thickness of approximately 150 mm, although not limited thereto, and the base 21 constituting the exterior wall frame 5 is placed on the upper end thereof. The base 21 supports the floor structural plywood 43 included in the floor frame. An anti-termite sealing 631 is preferably disposed between the base 21 and the heat insulation layer 61 of the outer wall structure to prevent entry of ants. Also, it is preferable that the anti-termite sealing 631 is similarly arranged in the space between the upper end of the foundation 51 and the lower end of the heat insulating layer 61 . Furthermore, between the heat insulating layer 61 and the fabric base heat insulating layer 63, similarly to under the earth floor heat insulating layer 64, an anti-termite sheet or an anti-termite moisture-proof sheet 68 is preferably arranged.

A drain 75 is preferably arranged at the lower end of the outer wall structure in order to prevent water from flowing from the outer surface of the outer wall structure to the lower surface of the heat insulating layer 63 . The drainer 75 is preferably one that has a drainer function and affinity with the exterior material, and is not limited, but for example, a plastic drainer manufactured by Sto for Passive House can be used. .

The drainer 75 has a horizontal side 751 arranged so as to be sandwiched between the heat insulating layer 61 and the fabric base heat insulating layer 63, a rising side 753 located at the outdoor end of the horizontal side 751, and an obliquely downward direction from the lower end of the rising side 753. and a hypotenuse 755 extending to the A mesh 754 extending upward from the upper end of the rising edge 753 is attached to the outer surface of the rising edge 753 . The mesh 754 is arranged inside the exterior material 71 .

1 building 2 outer wall frame 21 base 22 pillar 23 stud 24 girder 25 eaves girder 26 bed base 27 structural facing material 3 roof frame 31 roof beam 32 hut bundle 33 nose purlin 34 purlin 35 hut rafter 36 sheathing board 37 heat insulating material receiver 38 Gradient eaves 4 Floor frame 41 Beam 42 Large wall 43 Structural plywood 5 Foundation frame 51 Lay foundation 52 Dirt floor 6 Heat insulation/airtight layer 61 Exterior wall heat insulation layer 611 Window lower heat insulation layer 611a Inclined surface 611b Missing side 611c Window support 611d Window support Insulation layer 611d1 Slanted surface 611d2 Window support 612 Insulation layer above window 613 Insulation layer on side of window 62 Insulation layer on beam 63 Fabric foundation insulation layer 631 Anti-termite sealing 64 Insulation layer under earth floor 67 Moisture-proof anti-termite sheet 68 Anti-termite sheet or anti-termite Moisture-proof sheet 7 Interior and exterior 71 Exterior material 711 Moisture permeable waterproof film 712 Adhesive 713, 714 Base coat 715 Reinforcement mesh 716 Top coat 72 Roof material 73 Floor material 74 Ceiling surface 75 Drain 751 Horizontal side 753 Rising side 754 Mesh
755 hypotenuse 77 interior base material 78 still air layer 79 base painted wall 8 window portion 81 window frame 81a upper window frame 81b lower window frame 81c side window frame 811, 812 protruding piece 813, 814 screw 82 window reinforcing member 821 window sill 822 window Lint 823 Mulch 83 Draining member 831 Inclined side 832 Rising piece 833 Falling piece 834 Leg 835, 836 Screw 84 Sealing 841, 842 Sealing 843 Sealing tape 85 Wooden window sill

Claims (11)

An outer thermal insulation, moisture-permeable, and earthquake-resistant structure that prevents heat bridging in a wooden building,
An exterior wall structure comprising an interior base material, an exterior wall frame, a structural surface material, a heat insulating layer, and an exterior material laminated in this order, and having a window portion having a window frame ,
The exterior wall frame is composed of a plurality of structural members spaced apart from each other in the vertical and horizontal directions,
A static air layer is formed in the space between the plurality of structural members in the outer wall frame by covering the outer wall frame with the interior base material and the structural surface material ,
Having a moisture-permeable waterproof coating between the structural face material and the heat insulating layer,
The heat insulating layer has a window supporting portion formed of a high-density heat insulating material having a compressive strength greater than that of the heat insulating layer so as to support at least a portion of the lower portion of the window frame.
Adiabatic, moisture-permeable, and earthquake-resistant structure. The thermal insulation, moisture-permeable, and earthquake-resistant structure according to claim 1, wherein the thickness of the thermal insulation layer is 150 mm or more. 2. The thermal insulation, moisture-permeable, and earthquake-resistant structure according to claim 1 , wherein said window supporting portion is arranged on a missing side provided on an upper portion of said thermal insulation layer. 2. The thermal insulation, moisture-permeable, and earthquake-resistant structure according to claim 1 , wherein said heat insulating layer includes a window supporting heat insulating layer disposed thereon, and said window support portion is integrally formed with said window supporting heat insulating layer. 5. The thermal insulation, moisture-permeable, and earthquake - resistant structure according to claim 3 , wherein the window support is formed of a high-density beaded polystyrene foam insulation material. 2. The thermal insulation, moisture-permeable, and earthquake-resistant structure according to claim 1 , wherein the upper end surface of said heat insulating layer is formed as an inclined surface that slopes downward toward the outdoor side, and a draining member is arranged on said inclined surface. 7. The heat insulating, moisture permeable and earthquake resistant structure according to claim 6 , having a still air layer between said draining member and said upper end surface of said heat insulating layer. further comprising a window sill included in the outer wall frame that supports a portion of the lower portion of the window frame that is closer to the indoor side than the at least one portion;
The draining member is fixed at the rear end portion on the indoor side by a fixing member that penetrates the window support portion and the structural panel and reaches the window sill,
The adiabatic, moisture-permeable, and earthquake-resistant structure according to claim 6 . Further comprising a foundation structure having a cloth foundation and a cloth foundation insulation layer disposed on the outdoor side thereof,
The heat insulation layer and the foundation heat insulation layer of the outer wall structure are arranged so as to be adjacent to each other,
The adiabatic, moisture-permeable, and earthquake-resistant structure according to claim 1. The outer wall frame includes a foundation arranged at the upper end of the continuous foundation,
An anti-termite sealing is placed in a space surrounded by the thermal insulation layer, the thermal insulation layer of the concrete foundation, the concrete foundation and the base,
The heat insulating, moisture permeable and earthquake resistant structure according to claim 9 . The heat insulation layer and the fabric base heat insulation layer are adjacent to each other via an anti-termite sheet,
The heat insulating, moisture permeable and earthquake resistant structure according to claim 9 or 10 .

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