Ventilation path forming member and building

Abstract

The present invention provides a ventilation path forming member and a building that can be positioned in a ventilation path in a manner that prevents ventilation members or filling members from falling off. [Solution] The ventilation path forming member 20 is attached to the building exterior element AE that constitutes the outer part of the building. The ventilation path forming member 20 comprises a main body member 30 and a support member 40 that supports the main body member 30 on the outer surface ES of the building exterior element AE. The main body member 30 has a path forming portion 31 that forms a ventilation path F and a first mounting portion 32 to which at least one of the ventilation member 50 and the filling member is attached. The path forming portion 31 is configured to form a ventilation path F between the path forming portion 31 and the outer surface ES of the building exterior element AE when it is attached. The first mounting portion 32 is provided on the path forming portion 31 so as to be located between the path forming portion 31 and the outer surface ES when it is attached.

Description

Technical Field

[0001] The present disclosure relates to a ventilation path forming member and a building.

Background Art

[0002] In a building, a ventilation path is provided to ensure ventilation inside a wall, under a floor, in an attic, etc. In Patent Document 1, a gap is provided between a fabric foundation and a drainage member. By making the gap between the fabric foundation and the drainage member communicate with the ventilation gap between the fabric foundation and the base, a ventilation path is formed.

[0003] A retrofitted gap deformable insect net is inserted into the gap between the fabric foundation and the drainage member of Patent Document 1. The retrofitted gap deformable insect net suppresses the intrusion of insects and the like into the ventilation gap.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The retrofitted gap deformable insect net of Patent Document 1 is attached to the gap between the fabric foundation and the drainage member by the restoring force of elastic deformation, but in this configuration, there is a risk that the retrofitted gap deformable insect net may fall off. When arranging a member such as the retrofitted gap deformable insect net in the ventilation path, there is room for improvement in the arrangement method in the ventilation path.

Means for Solving the Problems

[0006] (1) A ventilation path forming member that solves the above problem is a ventilation path forming member that is attached to an exterior building element that constitutes the outer part of a building, comprising a main body member and a support member that supports the main body member on the exterior building element, wherein the main body member has a path forming portion that forms a ventilation path and a mounting portion to which at least one of a ventilation member and a filling member is attached, wherein the path forming portion is configured to form the ventilation path between the path forming portion and the exterior surface when the ventilation path forming member is attached to the exterior surface of the exterior building element, and the mounting portion is provided on the path forming portion so as to be located between the path forming portion and the exterior surface of the exterior building element when the ventilation path forming member is attached to the exterior building element.

[0007] With this configuration, since the mounting portion is located between the path forming portion and the outer surface when mounted, at least one of the ventilation member and the filling member is located in the ventilation path when mounted. Since at least one of the ventilation member and the filling member is attached to the mounting portion, it is less likely to fall out of the ventilation path. Therefore, at least one of the ventilation member and the filling member can be positioned in the ventilation path in a way that prevents it from falling out.

[0008] (2) In the ventilation path forming member described in (1) above, the ventilation member includes a flexible ventilation sheet that covers the ventilation path in a breathable manner. With this configuration, since the flexible ventilation sheet deforms according to the shape of the ventilation path, the ventilation path can be covered by the flexible ventilation sheet regardless of the shape of the ventilation path.

[0009] (3) In the ventilation path forming member described in (2) above, the flexible ventilation sheet is fixed to the first surface of the mounting portion that faces the outer surface of the building exterior element, and the first ventilation surface of the flexible ventilation sheet is curved so as to contact both the first surface and the outer surface. With this configuration, since the first ventilation surface of the flexible ventilation sheet is curved so as to contact both the first surface of the mounting portion and the outer surface of the building exterior element, the flexible ventilation sheet can adhere tightly to the outer surface of the building exterior element by elastic deformation.

[0010] (4) In the ventilation path forming member described in any one of (1) to (3) above, the filling member includes a watertight material that blocks the ventilation path so that it cannot be permeated. With this configuration, since the ventilation path is blocked by the watertight material, the flow of air into the ventilation path can be suppressed.

[0011] (5) In the ventilation path forming member described in any one of (1) to (4) above, the support member has a first fixing part fixed to the outer surface of the building exterior element, a second fixing part to which the main body member is fixed, and a temporary placement part to which the main body member is temporarily placed. With this configuration, when attaching the main body member to the support member, the main body member can be fixed to the second fixing part while the main body member is temporarily placed in the temporary placement part. Since the fixing work can be performed while the main body member is temporarily placed in the temporary placement part, the workability of attaching the ventilation path forming member to the building exterior element is improved.

[0012] (6) In the ventilation path forming member described in (5) above, the main body member has a projection that protrudes in a first direction toward the outer surface of the building exterior element from the path forming portion when installed, and the temporary placement portion protrudes in a second direction opposite to the first direction, and the main body member is temporarily placed on the temporary placement portion by the projection portion resting on the temporary placement portion. With this configuration, the main body member can be temporarily placed on the support member by resting the projection portion on the temporary placement portion.

[0013] (7) The ventilation path forming member according to any one of (1) to (6) above, further comprising a connecting member that connects the respective ends of two main body members that are arranged along the longitudinal direction of the main body member in the installed state, wherein the connecting member covers the portion where the respective ends of the two main body members are adjacent. With this configuration, since the respective ends of the two main body members can be covered by the connecting member, the joint between the two main body members is less noticeable.

[0014] (8) A building that solves the above problems is a building having an interior space, comprising a foundation, a building body, and a ventilation path forming member described in any one of (1) to (7) above, wherein the building body has an exterior wall located on the foundation, and the ventilation path forming member is arranged at the lower end of the exterior wall as a flashing. With this configuration, a ventilation path can be formed between the flashing provided at the lower end of the exterior wall and the foundation by the ventilation path forming member.

[0015] (9) A building that solves the above problem is a building having an interior space, comprising a building body and a ventilation path forming member described in any one of (1) to (7) above, wherein the building body comprises an exterior wall and a roof, and the ventilation path forming member is arranged between the exterior wall and the eaves material of the roof. With this configuration, a ventilation path leading to the attic space can be formed by the ventilation path forming member. [Effects of the Invention]

[0016] According to the ventilation path forming member and building of this disclosure, the ventilation member or filling member can be placed in the ventilation path in a manner that prevents it from easily falling off. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic diagram of a building according to the first embodiment. [Figure 2] Figure 1 is an enlarged view of the area between the exterior wall and the foundation of the building shown in Figure 1. [Figure 3] This is a cross-sectional view of a ventilation path forming member with a ventilation member attached to the first mounting portion along the line D3-D3 in Figure 2. [Figure 4] Figure 3 is an exploded view of the ventilation path forming member. [Figure 5] This is a cross-sectional view of a ventilation path forming member with a ventilation member attached to the first mounting portion along the line D5-D5 in Figure 2. [Figure 6] This is a first cross-sectional view of a ventilation path forming member with a filling member attached to the first mounting portion in the area between the outer wall and the foundation shown in Figure 2. [Figure 7]It is a second cross-sectional view of a ventilation path forming member in which a filling member is attached to a first attachment portion in a portion between the outer wall and the foundation in FIG. 2. [Figure 8] It is a cross-sectional view of a ventilation path forming member in which a ventilation member is attached to a first attachment portion in a portion between the outer wall and the eaves member of the roof in the building according to the second embodiment.

Mode for Carrying Out the Invention

[0018] [[ID=(11)]]<First Embodiment> Referring to FIGS. 1 to 7, the building 10 and the ventilation path forming member 20 according to the first embodiment will be described. Examples of the building 10 include a detached house, an apartment house, a public facility, a commercial facility, etc.

[0019] <Building> The building 10 shown in FIG. 1 is a house. The building 10 has an indoor space configured as a room. The building 10 includes a building main body 11 and a foundation 12. The building main body 11 includes an outer wall 13 and a roof 14. The outer wall 13 is located on the foundation 12. The outer wall 13 has an outer wall main body and an outer wall material 13A. The outer wall material 13A is, for example, an outer wall panel. The outer wall main body is disposed inside the outer wall material 13A. The outer wall main body is composed of outer wall members such as horizontal girders and columns. An interior material such as a heat insulating material and a gypsum board is provided on the indoor space side of the outer wall 13.

[0020] The roof 14 has an eaves member 14A. The eaves member 14A is exposed under the roof 14. The eaves member 14A is, for example, an eaves board. In a side view, the eaves member 14A extends in a direction intersecting the direction in which the outer wall material 13A extends. Specifically, the outer wall material 13A extends in the vertical direction. The eaves member 14A extends in the horizontal direction.

[0021] The configuration example of the exterior wall 13 shown in Figure 3 will now be described. A leveler 12A is fixed to the upper surface of the foundation 12. Furthermore, a plate 12B is fixed to the upper surface of the leveler 12A. A C-shaped horizontal member 12C is attached to the plate 12B. The inside of the exterior wall material 13A is hollow. A nut 13B is fixed to the inside of the exterior wall material 13A. A bolt 13C engages with the nut 13B. The bolt 13C fixes the fixing bracket 13D to the inner surface 13E of the exterior wall material 13A. The lower end of the exterior wall material 13A is fixed to the foundation 12 by the fixing bracket 13D engaging with the C-shaped horizontal member 12C. The upper end of the exterior wall material 13A is fixed to the horizontal member near the ceiling of the first floor by a structure similar to the fixing structure of the lower end. The outer surface 13F of the exterior wall material 13A is provided with the pattern of an exterior wall panel. Note that in Figure 3, the hatching indicating the cross-section of some components has been omitted.

[0022] As shown in Figure 3, a ventilation space V is formed between the lower end of the exterior wall 13 and the upper surface of the foundation 12. The ventilation space V connects to the underfloor space above the foundation 12 and to the wall cavity space inside the exterior wall material 13A. In the example in Figure 3, multiple plates 12B are arranged at predetermined intervals along the longitudinal direction of the C-shaped horizontal member 12C. The ventilation space V connects to the underfloor space and the wall cavity space through the gaps between the plates 12B along the longitudinal direction of the C-shaped horizontal member 12C.

[0023] The building 10 is equipped with a ventilation path forming member 20. As shown in Figure 2, in this embodiment, the ventilation path forming member 20 is positioned at the lower end of the exterior wall 13. The ventilation path forming member 20 in this embodiment has the function of a flashing 15. The ventilation path forming member 20, acting as a flashing 15, is provided at the lower end of the exterior wall 13. The lower end of the ventilation path forming member 20 overlaps with the foundation side 16 of the foundation 12 in a front view. Note that the exterior wall on which the ventilation path forming member 20 is positioned is not limited to the example of the exterior wall 13. The exterior wall 13 may be the exterior wall of a building 10 made of heavy steel frame, or it may be the exterior wall of a building 10 made of light steel frame.

[0024] <Ventilation path forming member> As shown in Figure 3, the ventilation path forming member 20 is attached to the building exterior element AE. The building exterior element AE is an element that constitutes the outer part of the building 10. The building exterior element AE has an outer surface ES. The outer surface ES faces the space outside the building body 11. In this embodiment, the building exterior element AE is the foundation 12. In this embodiment, the outer surface ES is the foundation side surface 16 of the foundation 12. The ventilation path forming member 20 is attached to the foundation 12. In the horizontal direction, the ventilation path forming member 20 is located between the foundation side surface 16 of the foundation 12 and the outer wall side surface 17 of the exterior wall 13. The outer wall side surface 17 of the exterior wall 13 is the outer surface 13F of the exterior wall material 13A.

[0025] The ventilation path forming member 20 comprises a main body member 30 and a support member 40. The ventilation path F is formed when the main body member 30 is attached to the outer surface ES of the building exterior element AE by the support member 40. In this embodiment, the main body member 30 is attached to the foundation side surface 16 of the foundation 12 by the support member 40. The ventilation path F is formed between the main body member 30 of the ventilation path forming member 20 and the foundation side surface 16 of the foundation 12. The ventilation path F connects to a ventilation space V. The ventilation path F connects to the space outside the building body 11. The main body member 30 is a member that forms the ventilation path F and is also a flashing 15 that suppresses the intrusion of water into the ventilation space V.

[0026] <Main body components> As shown in Figure 2, the main body member 30 extends downward from the lower end of the outer wall 13 in a front view. The main body member 30 is arranged such that, for example, its longitudinal direction LD aligns with the horizontal direction. For example, multiple main body members 30 are provided at the lower end of the outer wall 13 so as to align with the horizontal direction. Figure 2 shows the joint between two main body members 30. Note that the side views from Figure 3 onward are views taken from a direction along the longitudinal direction LD of the main body member 30.

[0027] As shown in Figure 4, the main body member 30 has a path forming portion 31 and a first mounting portion 32. The first mounting portion 32 corresponds to the mounting portion of the means for solving the problem. Note that in Figure 4, hatching to show the cross-section of some members has been omitted.

[0028] As shown in Figure 3, the path forming section 31 forms a ventilation path F. The path forming section 31 is configured to form a ventilation path F between the path forming section 31 and the outer surface ES when the ventilation path forming member 20 is attached to the outer surface ES of the building exterior element AE. The path forming section 31 is positioned so that a space is provided between it and the outer surface ES. The space between the path forming section 31 and the outer surface ES connects to a ventilation space V and also to the space outside the building body 11, thereby forming the ventilation path F.

[0029] The path-forming section 31 extends along the foundation side surface 16 of the foundation 12. The upper end of the path-forming section 31 is located above the top surface of the foundation 12. The lower end of the path-forming section 31 overlaps with the foundation side surface 16 of the foundation 12 in a front view.

[0030] As shown in Figure 4, a first projection 33 is provided near the lower end of the path-forming portion 31, projecting in a first direction A1. The first direction A1 is the direction from the path-forming portion 31 toward the outer surface ES when installed. The first projection 33 improves the strength of the main body member 30 in the longitudinal direction LD.

[0031] As shown in Figure 3, at least one of the ventilation member 50 and the filling member 60 is attached to the first mounting portion 32. In the example in Figure 3, the ventilation member 50 is attached to the first mounting portion 32.

[0032] As shown in Figure 3, the first mounting portion 32 is provided on the path forming portion 31 so as to be located between the path forming portion 31 and the outer surface ES of the building exterior element AE when mounted. The first mounting portion 32 has a first surface 32X and a second surface 32Y. The first surface 32X faces the outer surface ES of the building exterior element AE when mounted. The second surface 32Y faces the path forming portion 31.

[0033] As shown in Figure 4, the first mounting portion 32 extends along the path forming portion 31. The first mounting portion 32 is connected to the upper end of the path forming portion 31. The upper end of the first mounting portion 32 is connected to the upper end of the path forming portion 31 by, for example, an arm portion 32A. The arm portion 32A extends so as to intersect in the first direction A1. In the mounted state, the arm portion 32A extends so as to intersect horizontally.

[0034] As shown in Figure 3, the main body member 30 has a second mounting portion 34. The second mounting portion 34 is attached to the support member 40. By attaching the second mounting portion 34 to the support member 40, the main body member 30 is supported by the support member 40.

[0035] As shown in Figure 4, the main body member 30 has a second projection 35. The outer end of the second projection 35 in the first direction A1 is connected to the upper end of the path forming portion 31. The inner end of the second projection 35 in the first direction A1 extends inward from the first mounting portion 32 in the first direction A1. The upper end of the arm portion 32A is connected to the second projection 35. The second projection 35 protrudes from the path forming portion 31 in the first direction A1. The inner end of the second projection 35 in the first direction A1 is connected to the lower end of the second mounting portion 34. The second projection 35 corresponds to the projection of the means for solving the problem.

[0036] <Support member> As shown in Figure 3, the support member 40 supports the main body member 30 on the outer surface ES of the building exterior element AE. The support member 40 has a first fixing part 41, a second fixing part 42, and a temporary placement part 43. The first fixing part 41 is fixed to the outer surface ES of the building exterior element AE. In the installed state, the first fixing part 41 is aligned with the outer surface ES. The first fixing member 81 engages with the first fixing part 41. The first fixing member 81 is, for example, a screw, bolt, or the like. The first fixing member 81 fixes the first fixing part 41 to the outer surface ES of the building exterior element AE.

[0037] As shown in Figure 4, the temporary placement portion 43 is connected to the upper end of the first fixing portion 41. The temporary placement portion 43 protrudes in the second direction A2. The second direction A2 is opposite to the first direction A1. The main body member 30 is temporarily placed on the temporary placement portion 43. Specifically, the main body member 30 is temporarily placed on the temporary placement portion 43 by the second protruding portion 35 of the main body member 30 resting on the temporary placement portion 43 of the support member 40.

[0038] As shown in Figure 3, the second fixing portion 42 extends upward from the temporary placement portion 43. The main body member 30 is fixed to the second fixing portion 42. The second fixing member 82 engages with the second fixing portion 42. The second fixing member 82 fixes the connecting member 70, which will be described later, to the support member 40. The second fixing member 82 is, for example, a screw, a bolt, or the like. In this embodiment, the second fixing member 82 engages with the second fixing portion 42 of the support member 40 while engaged with the connecting member 70, which will be described later, so that the second fixing portion 42 of the support member 40 and the connecting member 70 clamp the second mounting portion 34 of the main body member 30. As a result, the main body member 30 is fixed to the second fixing portion 42 of the support member 40.

[0039] As shown in Figure 2, a notch 30Y is provided at the end 30X of the main body member 30. The second fixing member 82 is positioned between the notches 30Y provided at each end 30X of the two main body members 30 in a front view. By positioning the second fixing member 82 in the notch 30Y, the second fixing member 82 does not engage with the main body member 30, thereby suppressing the effects of thermal expansion and contraction of the main body member 30. Alternatively, the notches 30Y may not be provided at each end 30X of the two main body members 30, and a gap may be provided between the ends 30X of the two main body members 30, with the second fixing member 82 positioned in that gap. Alternatively, the main body member 30 may be fixed to the second fixing part 42 of the support member 40 by engaging the second fixing member 82 with the second mounting part 34 of the main body member 30 and then engaging with the second fixing part 42 of the support member 40. In Figure 2, the portion of the main body member 30 that is hidden by the first watertight material 36 (described later) is shown with a dashed line, the portion of the connecting member 70 that is hidden by the first watertight material 36 is shown with a dashed line, and the second fixing member 82 is shown with a dashed line.

[0040] <Connecting component> As shown in Figure 2, the ventilation path forming member 20 further comprises a connecting member 70. The connecting member 70 connects the respective ends 30X of two main body members 30 that are aligned along the longitudinal direction LD of the main body member 30 in the installed state. Specifically, the connecting member 70 connects the respective ends 30X of the two main body members 30 by covering the adjacent portions of the respective ends 30X of the two main body members 30. The connecting member 70 has a third mounting portion 71 and a cover portion 72.

[0041] As shown in Figure 3, the third mounting portion 71 is attached to the second fixing portion 42 of the support member 40. Specifically, the third mounting portion 71 is attached to the second fixing portion 42 by the second fixing member 82. The screw head of the second fixing member 82 is embedded in the first watertight material 36.

[0042] As shown in Figure 2, the cover portion 72 is connected to the lower end of the third mounting portion 71. The cover portion 72 covers the adjacent portions of the respective ends 30X of the two main body members 30. The cover portion 72 covers the main body member 30 from the front to the lower end of the path forming portion 31.

[0043] As shown in Figure 5, a first watertight material 36 is provided between the lower end of the outer wall 13 and the ventilation path forming member 20. Figure 5 shows a cross-sectional view along the line D5-D5 in Figure 2. In the longitudinal direction LD of the main body member 30, in the portion away from the support member 40 and the connecting member 70, the first watertight material 36 is provided between the lower end of the outer wall 13 and the second protrusion 35 of the main body member 30. Figure 3 shows a cross-sectional view along the line D3-D3 in Figure 2. As shown in Figure 3, in the longitudinal direction LD of the main body member 30, in the portion overlapping with the support member 40 and the connecting member 70, the first watertight material 36 is provided between the lower end of the outer wall 13 and the connecting member 70.

[0044] The first watertight material 36 is, for example, a sealant. A bond breaker is placed between the sealant, which serves as the first watertight material 36, and the second mounting portion 34 of the main body member 30. Note that in Figure 5, hatching to show the cross-section of some members has been omitted.

[0045] <Configuration of ventilation paths> Whether the ventilation path F in this embodiment is actually ventilable depends on whether the ventilation member 50 or the filling member 60 is attached to the first mounting portion 32 of the main body member 30. A first example in which the ventilation member 50 is arranged in the ventilation path F and a second example in which the filling member 60 is arranged in the ventilation path F will be described.

[0046] [Example 1] As shown in Figure 5, when the ventilation path F is configured to allow ventilation, the ventilation member 50 is attached to the first mounting portion 32. The ventilation member 50 allows air to pass through the ventilation path F and prevents rodents and insects from entering through the ventilation path F.

[0047] The ventilation member 50 includes a flexible ventilation sheet 51. The flexible ventilation sheet 51 covers the ventilation path F in a breathable manner. The flexible ventilation sheet 51 is provided with, for example, a plurality of ventilation holes. The ventilation holes of the flexible ventilation sheet 51 are set to a size that prevents rodents and insects from passing through. The flexible ventilation sheet 51 is, for example, a mesh of a metal or resin material. The flexible ventilation sheet 51 may also be a porous filter as long as ventilation is ensured.

[0048] The flexible ventilated sheet 51 is attached to the first surface 32X of the first mounting portion 32. The flexible ventilated sheet 51 is curved so that its first ventilation surface 52 contacts both the first surface 32X of the first mounting portion 32 and the outer surface ES of the building exterior element AE. The flexible ventilated sheet 51 is curved so as to protrude upward. The flexible ventilated sheet 51 may also be curved near the apex of the curved portion so as to contact the second projection 35. The other second ventilation surface 53 of the flexible ventilated sheet 51 does not contact either the first surface 32X of the first mounting portion 32 or the outer surface ES of the building exterior element AE.

[0049] As shown in Figure 4, the third fixing member 83 engages with the first mounting portion 32. The third fixing member 83 fixes the flexible breathable sheet 51 to the first mounting portion 32. The third fixing member 83 is, for example, a screw, a bolt, or the like. A washer 84 is placed between the head of the screw, which is the third fixing member 83, and the first surface 32X of the first mounting portion 32.

[0050] [Example 2] As shown in Figure 6, when the ventilation path F is configured to be non-ventilating, the filling member 60 is attached to the first mounting portion 32. An example of a case where the ventilation path F is configured to be non-ventilating is when the exterior wall 13 constitutes the wall of a built-in garage. If the exterior wall 13 of the built-in garage is ventilated, there is a risk that vehicle exhaust gases may flow into the interior. For this reason, it is preferable that the ventilation path of the exterior wall 13 of the built-in garage be shielded.

[0051] The filling member 60 is filled between the first surface 32X of the first mounting portion 32 and the outer surface ES of the building exterior element AE. The filling member 60 includes a second watertight material 61. The second watertight material 61 blocks the ventilation path F so that it cannot be permeated. The second watertight material 61 is, for example, a sealant. The filling member 60 is attached to the first mounting portion 32 by filling the space between the first surface 32X of the first mounting portion 32 and the outer surface ES of the building exterior element AE with the second watertight material 61 as a sealant. The second watertight material 61 corresponds to the watertight material that is the means for solving the problem.

[0052] As shown in Figure 7, in the longitudinal direction LD of the main body member 30, in the portion that overlaps with the support member 40 and the connecting member 70, the filling member 60 is filled between the first surface 32X of the first mounting portion 32 and the first fixing portion 41 of the support member 40. Note that in Figures 6 and 7, hatching to show the cross-section of some members has been omitted.

[0053] <Method for attaching ventilation path forming member> Referring to Figure 4, a method for attaching the ventilation path forming member 20 to the foundation 12 as an exterior building element AE will be described in the first example in which the ventilation member 50 is arranged in the ventilation path F. The flexible ventilation sheet 51 as the ventilation member 50 is attached to the first mounting part 32 of the main body member 30 before the first step. The following steps 1 to 3 are performed after the exterior wall 13 is constructed on the foundation 12.

[0054] In the first step, the support member 40 is fixed to the outer surface ES of the building exterior element AE by the first fixing member 81. Multiple support members 40 are arranged so as to be spaced apart at predetermined intervals.

[0055] In the second step, the second protrusion 35 of the main body member 30 is placed on the temporary placement portion 43 of the support member 40. This temporarily places the main body member 30 on the support member 40. At this time, the flexible breathable sheet 51, which serves as the breathable member 50, contacts the temporary placement portion 43 of the support member 40 from below, causing the temporary placement portion 43 to be sandwiched between the second protrusion 35 and the breathable member 50. This sandwiching of the temporary placement portion 43 makes it difficult for the main body member 30 to move relative to the support member 40 while it is temporarily placed.

[0056] In the third step, the second fixing member 82 is used to attach the third mounting portion 71 of the connecting member 70 to the second fixing portion 42 of the support member 40 so as to sandwich the second mounting portion 34 of the main body member 30. In the second example, where the filling member 60 is placed in the ventilation path F, the filling member 60 is filled into the ventilation path F after the third step.

[0057] <Operation of this embodiment> The first operation of this embodiment will now be described. In the ventilation path forming member 20, a ventilation path F is formed in which at least one of the ventilation member 50 and the filling member 60 is placed by fixing the main body member 30 to the building exterior element AE. Since at least one of the ventilation member 50 and the filling member 60 is attached to the first mounting portion 32 of the main body member 30, it is unlikely to fall out of the ventilation path F.

[0058] The second operation of this embodiment will now be described. In order to prevent rodents and insects from entering the ventilation path F, the ventilation path F may be blocked by a plate-like member with ventilation through-holes. Such a plate-like member is placed, for example, between the flashing at the lower end of the exterior wall 13 and the foundation side 16 of the foundation 12. On the other hand, in order to improve the strength of the foundation 12, it may be desirable to bring the foundation side 16 of the foundation 12 closer to the exterior wall side 17 of the exterior wall 13 in the horizontal direction. In order to place the flashing inside the exterior wall side 17 of the exterior wall 13, the area of ​​the plate-like member becomes smaller as the distance from the exterior wall side 17 of the exterior wall 13 to the foundation side 16 of the foundation 12 decreases. In a plate-like member, it is necessary to ensure a distance between the through-holes, so there is a limit to how large the area of ​​the through-holes can be relative to the area of ​​the plate-like member. For this reason, as the distance from the exterior wall side 17 of the exterior wall 13 to the foundation side 16 of the foundation 12 decreases, the area of ​​the plate-like member decreases, the through-holes become smaller, and the amount of ventilation in the ventilation path F decreases. In this embodiment, a flexible breathable sheet 51 is used as the breathable member 50. Compared to the plate-shaped member described above, the flexible breathable sheet 51 is less likely to suppress the amount of airflow through the breathable path F, thus ensuring sufficient airflow through the breathable path F.

[0059] The third function of this embodiment will now be described. Either the ventilation member 50 or the filling member 60 can be attached to the first mounting portion 32. In the building 10, a common ventilation path forming member 20 can be used in parts where ventilation of the ventilation path F is to be made possible and in parts where ventilation of the ventilation path F is to be made impossible.

[0060] <Effects of this embodiment> The effects of this embodiment will now be explained. (1-1) The ventilation path forming member 20 is attached to the building exterior element AE which constitutes the outer part of the building 10. The ventilation path forming member 20 comprises a main body member 30 and a support member 40 which fixes the main body member 30 to the outer surface ES of the building exterior element AE. The main body member 30 has a path forming portion 31 which forms a ventilation path F and a first mounting portion 32 to which at least one of the ventilation member 50 and the filling member 60 is attached. The path forming portion 31 is configured to form a ventilation path F between the path forming portion 31 and the outer surface ES when the ventilation path forming member 20 is attached to the outer surface ES of the building exterior element AE. The first mounting portion 32 is provided on the path forming portion 31 so as to be located between the path forming portion 31 and the outer surface ES when it is attached.

[0061] With this configuration, since the first mounting portion 32 is located between the path forming portion 31 and the outer surface ES when mounted, at least one of the ventilation member 50 and the filling member 60 is located in the ventilation path F when mounted. Since at least one of the ventilation member 50 and the filling member 60 is attached to the first mounting portion 32, it is less likely to fall out of the ventilation path F. Therefore, at least one of the ventilation member 50 and the filling member 60 can be positioned in the ventilation path F in a way that prevents it from falling out.

[0062] (1-2) The ventilation member 50 includes a flexible ventilation sheet 51 that covers the ventilation path F in a breathable manner. With this configuration, the flexible ventilation sheet 51 deforms according to the shape of the ventilation path F, so that the ventilation path F can be covered by the flexible ventilation sheet 51 regardless of the shape of the ventilation path F.

[0063] (1-3) The flexible ventilated sheet 51 is fixed to the first surface 32X of the first mounting portion 32, which faces the outer surface ES. The flexible ventilated sheet 51 is curved so that the first ventilation surface 52 of the flexible ventilated sheet 51 contacts both the first surface 32X and the outer surface ES. With this configuration, the first ventilation surface 52 of the flexible ventilated sheet 51 is curved so that it contacts both the first surface 32X of the first mounting portion 32 and the outer surface ES of the building exterior element AE, so that the flexible ventilated sheet 51 can adhere closely to the outer surface ES of the building exterior element AE by elastic deformation.

[0064] (1-4) The filling member 60 includes a second watertight material 61 that blocks the ventilation path F to prevent air from passing through. With this configuration, the ventilation path F is blocked by the second watertight material 61, so that air does not flow into the ventilation path F.

[0065] (1-5) The support member 40 has a first fixing part 41 which is fixed to the outer surface ES of the building exterior element AE, a second fixing part 42 to which the main body member 30 is fixed, and a temporary placement part 43 to which the main body member 30 is temporarily placed. With this configuration, when attaching the main body member 30 to the support member 40, the main body member 30 can be fixed to the second fixing part 42 while the main body member 30 is temporarily placed in the temporary placement part 43. Since the fixing work can be performed while the main body member 30 is temporarily placed in the temporary placement part 43, the workability of attaching the ventilation path forming member 20 to the building exterior element AE is improved.

[0066] (1-6) The main body member 30 has a second projection 35 that protrudes from the path forming portion 31 in a first direction A1. The temporary placement portion 43 protrudes from the first fixing portion 41 in a second direction A2, which is opposite to the first direction A1. The main body member 30 is temporarily placed on the temporary placement portion 43 by placing the second projection 35 on the temporary placement portion 43. With this configuration, the main body member 30 can be temporarily placed on the support member 40 by placing the second projection 35 on the temporary placement portion 43.

[0067] (1-7) The ventilation path forming member 20 further includes a connecting member 70 that connects the respective ends 30X of two main body members 30 that are aligned along the longitudinal direction LD of the main body member 30 when installed. The connecting member 70 covers the adjacent portions of the respective ends 30X of the two main body members 30. With this configuration, since the respective ends 30X of the two main body members 30 can be covered by the connecting member 70, the joint between the two main body members 30 is less noticeable.

[0068] (1-8) The building 10 comprises a foundation 12, a building body 11, and a ventilation path forming member 20. The building body 11 includes an exterior wall 13 located on the foundation 12. The ventilation path forming member 20 is positioned at the lower end of the exterior wall 13 as a flashing 15. With this configuration, the ventilation path forming member 20 can form a ventilation path F between the flashing 15 provided at the lower end of the exterior wall 13 and the foundation 12.

[0069] <Second Embodiment> Referring to Figure 8, the building 10 and ventilation path forming member 20 according to the second embodiment will be described. In this embodiment, components that are substantially unchanged from those of the first embodiment are given the same reference numerals as those of the first embodiment, and their descriptions are omitted. The ventilation path forming member 20 of this embodiment is arranged on the roof 14 of the building 10.

[0070] In the example shown in Figure 8, the column 19A is positioned inside the exterior wall material 13A of the exterior wall 13. The exterior wall material 13A is fixed to the column 19A, for example. The upper end of the column 19A is connected to the horizontal member 19B. The horizontal member 19B is, for example, a ceiling beam. The horizontal member 19B is made of, for example, an H-shaped steel. Note that in Figure 8, hatching indicating the cross-section of some members has been omitted.

[0071] An attic space R is provided above the eaves material 14A. In the roof 14, a base material 14B is placed above the eaves material 14A. The eaves material 14A is fixed to the base material 14B, for example.

[0072] The ventilation path forming member 20 of this embodiment is positioned between the exterior wall 13 and the eaves material 14A of the roof 14. The ventilation path forming member 20 of this embodiment is, for example, a trim material 18. The roof 14 is provided with the ventilation path forming member 20 as a trim material 18. The main body member 30 of this embodiment covers the end of the eaves material 14A. The main body member 30 covers from the lower surface of the eaves material 14A to the side surface of the base material 14B.

[0073] The ventilation path forming member 20 of this embodiment is attached to the exterior wall 13. The building exterior element AE of this embodiment is the exterior wall material 13A that constitutes the exterior wall 13. The exterior surface ES of the building exterior element AE is the exterior wall side surface 17 of the exterior wall 13. The support member 40 is attached to the exterior wall side surface 17 of the exterior wall 13. In the ventilation path forming member 20 of this embodiment, the connecting member 70 may be omitted.

[0074] The exterior wall to which the ventilation path forming member 20 of this embodiment is attached is not limited to the example of the exterior wall 13 in Figure 8. The exterior wall 13 may be the exterior wall of a building 10 made of heavy steel frame, or it may be the exterior wall of a building 10 made of light steel frame. The ventilation path forming member 20 of this embodiment may be attached to the exterior wall 13 of the first embodiment.

[0075] The path-forming section 31 has a third surface 31X and a fourth surface 31Y. The third surface 31X faces the outer surface ES of the building exterior element AE. The fourth surface 31Y faces the eaves material 14A. The fourth surface 31Y is in contact with both the end of the eaves material 14A and the base material 14B.

[0076] In this embodiment, the space between the path forming section 31 and the outer wall 13 connects to the attic space R and also to the space outside the building body 11, thereby forming a ventilation path F. In the example shown in Figure 8, a ventilation member 50 is attached to the first mounting section 32, but a filling member 60 may also be attached to the first mounting section 32.

[0077] The main body member 30 of this embodiment is provided with a third projection 37. The third projection 37 protrudes in the second direction A2. The third projection 37 follows the lower surface of the eaves material 14A. The third projection 37 is in contact with the lower surface of the eaves material 14A. In the main body member 30 of this embodiment, the first projection 33 may be omitted.

[0078] <Effects of this embodiment> The effects of this embodiment will now be explained. (1) The building 10 comprises a building body 11 and a ventilation path forming member 20. The building body 11 comprises an exterior wall 13 and a roof 14. The ventilation path forming member 20 is positioned between the exterior wall 13 and the eaves material 14A of the roof 14. With this configuration, the ventilation path forming member 20 can form a ventilation path F that connects to the attic space R.

[0079] <Variation> The embodiments described above are illustrative of possible configurations for the building 10 and the ventilation path forming member 20, and are not intended to limit their configurations. The building 10 and the ventilation path forming member 20 may take configurations different from those exemplified in the embodiments described above. Examples include configurations in which parts of the configuration of each embodiment are replaced, modified, or omitted, or configurations in which new configurations are added to each embodiment. Modifications of each embodiment are shown below.

[0080] Both the ventilation member 50 and the filling member 60 may be attached to the first mounting portion 32 of the main body member 30. In this modified example, the ventilation member 50 and the filling member 60 are aligned in the longitudinal direction LD of the main body member 30.

[0081] The ventilation member 50 may include, in place of or in addition to, the flexible ventilation sheet 51, a porous plate-like member, a cylindrical brush, a breathable sponge, or a fibrous filter. The method of attaching these ventilation members 50 to the first mounting portion 32 is not limited to the third fixing member 83.

[0082] The method of attaching the flexible breathable sheet 51 to the first mounting portion 32 is not limited to the method using the third fixing member 83. For example, the flexible breathable sheet 51 may be clamped to the first mounting portion 32 with a clip. The flexible breathable sheet 51 may also be bonded to the first mounting portion 32 with an adhesive.

[0083] The filling member 60 may include an elastically deformable resin member or waterproof tape in place of or in addition to the second watertight material 61. The resin member or waterproof tape is attached to the first surface 32X of the first mounting portion 32. The filling member 60 may also include an airtight flexible sheet. The airtight flexible sheet is, for example, a waterproof sheet. The airtight flexible sheet may be attached to the first mounting portion 32 by an attachment method similar to that for the flexible breathable sheet 51.

[0084] The second protrusion 35 may be omitted from the main body member 30, and the temporary placement portion 43 may be omitted from the support member 40.

[0085] Although an example was shown in which the connecting member 70 covers each end 30X of the two main body members 30, the connecting member 70 may also be positioned to cover the middle portion of one main body member 30 in the longitudinal direction LD.

[0086] The cover portion 72 may be omitted from the connecting member 70, and the connecting member 70 may consist only of the third mounting portion 71.

[0087] In the first embodiment, an example is shown in which the ventilation path forming member 20 constitutes a flashing 15, and in the second embodiment, an example is shown in which the ventilation path forming member 20 constitutes a trim 18. However, the ventilation path forming member 20 may constitute other building elements. The ventilation path forming member 20 may be placed on the building body 11 solely for the purpose of forming a ventilation path F.

[0088] This specification discloses the following technologies: [Note 1] A ventilation path forming member to be attached to an exterior building element constituting the outer part of a building, comprising a main body member and a support member for supporting the main body member on the exterior building element, wherein the main body member has a path forming portion for forming a ventilation path and a mounting portion to which at least one of a ventilation member and a filling member is attached, the path forming portion is configured to form the ventilation path between the path forming portion and the exterior surface when the ventilation path forming member is attached to the exterior surface of the exterior building element, and the mounting portion is provided on the path forming portion so as to be located between the path forming portion and the exterior surface of the exterior building element when the ventilation path forming member is attached.

[0089] [Note 2] The ventilation member is the ventilation path forming member according to Appendix 1, which includes a flexible ventilation sheet that covers the ventilation path in a breathable manner.

[0090] [Note 3] The ventilation path forming member according to Appendix 2, wherein the flexible ventilation sheet is fixed to the first surface of the mounting portion that faces the outer surface of the building exterior element, and the first ventilation surface of the flexible ventilation sheet is curved so as to contact both the first surface and the outer surface.

[0091] [Note 4] The ventilation path forming member according to Appendix 1, wherein the filling member includes a watertight material that obstructs the ventilation path to prevent airflow.

[0092] [Note 5] The ventilation path forming member according to Appendix 1, wherein the support member has a first fixing portion fixed to the outer surface of the building exterior element, a second fixing portion to which the main body member is fixed, and a temporary positioning portion to which the main body member is temporarily placed.

[0093] [Note 6] The ventilation path forming member according to Appendix 5, wherein the main body member has a projection that, in the installed state, protrudes in a first direction toward the outer surface of the building exterior element from the path forming portion, and the temporary placement portion protrudes in a second direction opposite to the first direction, and the main body member is temporarily placed on the temporary placement portion by the projection portion resting on the temporary placement portion.

[0094] [Note 7] The ventilation path forming member according to Appendix 1 further comprises a connecting member that connects the respective ends of two main body members that are arranged along the longitudinal direction of the main body member in the aforementioned mounting state, wherein the connecting member covers the adjacent portions of the respective ends of the two main body members.

[0095] [Note 8] A building having an interior space, comprising a foundation, a building body, and a ventilation path forming member described in any one of appendices 1 to 7, wherein the building body has an exterior wall located on the foundation, and the ventilation path forming member is arranged at the lower end of the exterior wall as a drip edge.

[0096] [Note 9] A building having an interior space, comprising a building body and a ventilation path forming member described in any one of appendices 1 to 7, wherein the building body comprises an exterior wall and a roof, and the ventilation path forming member is disposed between the exterior wall and the eaves material of the roof. [Explanation of Symbols]

[0097] AE...Exterior building element, ES...Exterior, 10...Building, 11...Building body, 12...Foundation, 13...Exterior wall, 14...Roof, 14A...Eaves material, 15...Drip edge, 20...Ventilation path forming member, 30...Main body member, 31...Path forming part, 32...First mounting part, 32X...First surface, 35...Second protrusion, 40...Support member, 41...First fixing part, 42...Second fixing part, 43...Temporary placement part, 50...Ventilation member, 51...Flexible ventilation sheet, 52...First ventilation surface, 60...Filling member, 61...Second watertight material, 70...Connecting member.

Claims

1. A ventilation path forming member that is attached to the exterior elements of a building that constitute the outer part of a building, Main body components, The main body member is supported by a support member that supports the outer surface of the building exterior element, The main body member has a path forming portion that forms a ventilation path, and a mounting portion to which at least the ventilation member among the ventilation member and filling member is attached. The path forming portion is configured to form the ventilation path between the path forming portion and the outer surface when the ventilation path forming member is attached to the outer surface of the building exterior element. The mounting portion is provided on the path forming portion so as to be positioned between the path forming portion and the outer surface of the building exterior element in the mounted state. The ventilation member includes a flexible ventilation sheet that covers the ventilation path in a breathable manner. Ventilation path forming member.

2. The flexible ventilated sheet is fixed to the first surface of the mounting portion that faces the outer surface of the building's exterior element, and is curved so that the first ventilated surface of the flexible ventilated sheet contacts both the first surface and the outer surface. The ventilation path forming member according to claim 1.

3. The filling member includes a watertight material that blocks the ventilation path to prevent air from passing through. The ventilation path forming member according to claim 1.

4. The support member has a first fixing portion fixed to the outer surface of the building exterior element, a second fixing portion to which the main body member is fixed, and a temporary placement portion to which the main body member is temporarily placed. The ventilation path forming member according to claim 1.

5. The main body member has a projection that, in the mounted state, protrudes from the path forming portion in a first direction toward the outer surface of the building exterior element, The temporary placement portion protrudes in a second direction opposite to the first direction, The main body member is temporarily placed on the temporary placement portion by the projection portion resting on the temporary placement portion. The ventilation path forming member according to claim 4.

6. The mounting state further includes connecting members that connect the respective ends of the two main body members, which are arranged along the longitudinal direction of the main body member, The connecting member covers the portion where the ends of the two main body members are adjacent to each other. The ventilation path forming member according to claim 1.

7. A building having an interior space, The building comprises a foundation, a building body, and a ventilation path forming member according to any one of claims 1 to 6, The building body comprises an outer wall located on the foundation, The ventilation path forming member is positioned at the lower end of the outer wall as a water drain. architecture.

8. A building having an interior space, It comprises a building body and a ventilation path forming member, The building body comprises an exterior wall and a roof, which are building exterior elements constituting the outer part of the building. The ventilation path forming member is positioned between the outer wall and the eaves material of the roof. The aforementioned ventilation path forming member is A ventilation path forming member attached to the aforementioned building exterior element, Main body components, The main body member is supported by a support member that supports the outer surface of the building exterior element, The main body member has a path forming portion that forms a ventilation path, and a mounting portion to which at least one of the ventilation member and the filling member is attached. The path forming portion is configured to form the ventilation path between the path forming portion and the outer surface when the ventilation path forming member is attached to the outer surface of the building exterior element. The mounting portion is provided on the path forming portion so as to be positioned between the path forming portion and the outer surface of the building exterior element in the mounted state. architecture.

9. The ventilation member includes a flexible ventilation sheet that covers the ventilation path in a breathable manner. The building according to claim 8.

10. The flexible ventilated sheet is fixed to the first surface of the mounting portion that faces the outer surface of the building's exterior element, and is curved so that the first ventilated surface of the flexible ventilated sheet contacts both the first surface and the outer surface. The building described in claim 9.

11. The filling member includes a watertight material that blocks the ventilation path to prevent air from passing through. The building according to claim 8.

12. The support member has a first fixing portion fixed to the outer surface of the building exterior element, a second fixing portion to which the main body member is fixed, and a temporary placement portion to which the main body member is temporarily placed. The building according to claim 8.

13. The main body member has a projection that, in the mounted state, protrudes from the path forming portion in a first direction toward the outer surface of the building exterior element, The temporary placement portion protrudes in a second direction opposite to the first direction, The main body member is temporarily placed on the temporary placement portion by the projection portion resting on the temporary placement portion. The building according to claim 12.

14. The mounting state further includes connecting members that connect the respective ends of the two main body members, which are arranged along the longitudinal direction of the main body member, The connecting member covers the portion where the ends of the two main body members are adjacent to each other. The building according to claim 8.

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