Ventilation components and wall construction

Abstract

To provide a ventilation member suitable for reassuring air permeability of a ventilation layer provided at a wall material rear side.SOLUTION: The ventilation member X is for mounting a wall material top end and comprises a stationary plate part 10, a top plate part 20, a partition plate part 30, a bottom plate part 40, a front plate part 50 and a first baffle plate part 61. The stationary plate part 10 has a first edge 13 situated at an upper side in a vertical direction D. The top plate part 20 extends from the first edge 13 and has a third edge 21 at an extention end. The partition plate part 30 extends downward from the third edge 21 and has a fourth edge 31 at the extention end. The bottom plate part 40 extends from the fourth edge 31 in a direction away from the stationary plate part 10 and has a fifth edge 41 at the extention end. The front plate part 50 extends upward from the fifth edge 41 and has a sixth edge 51 at the extention end. The first baffle plate part 61 extends from the sixth edge 51 to the partition plate part 30 side. The partition plate part 30 has a ventilation hole 34 and the bottom plate part 40 has a drain hole 42. The wall material construction structure Y1 according to the present invention comprises the ventilation member X of this type.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a ventilation member and a wall material installation structure. [Background technology]

[0002] Inorganic boards such as ceramic siding boards, metal siding boards, and ceramic boards are sometimes used as wall materials to construct the exterior walls of buildings. When constructing an exterior wall using these wall materials, multiple pieces of wall material are joined together in the vertical and horizontal directions.

[0003] Thin wall materials such as ceramic siding boards may have upper and lower solid parts formed at the ends of the wall material to join adjacent wall materials. However, the solid parts are thin, and good watertightness may not be ensured at the joints between wall materials. Also, in exterior wall structures, a ventilation layer is often provided on the back side (indoor side) of the wall material, and if the pressure in this ventilation layer is lower than the outdoor air pressure, water such as rainwater may seep in from the outdoor side to the indoor side at the joints between wall materials.

[0004] On the other hand, in some cases, vents are provided at the upper and lower ends of the wall structure to connect the ventilation layer to the outdoors and increase the breathability of the ventilation layer. Such vents suppress the occurrence of condensation in the ventilation layer. Technology related to vents is described, for example, in Patent Document 1 below. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-91002 A Summary of the Invention [Problem to be solved by the invention]

[0006] When the wall structure is provided with the above-mentioned vent holes, the difference between the pressure inside the ventilation layer and the outside air pressure tends to decrease. However, with conventional technology, the longer the distance between the upper and lower ends of the wall structure (e.g., the more wall materials are joined in the vertical direction), the more difficult it becomes to ensure ventilation throughout the entire ventilation layer, and pressure differences are likely to occur within the ventilation layer. For example, the vertical central region of the ventilation layer may experience lower pressure than other regions. The occurrence of such pressure differences is also undesirable from the viewpoint of watertightness mentioned above.

[0007] The present invention was conceived under these circumstances, and its object is to provide a ventilation member suitable for ensuring sufficient breathability in a ventilation layer provided on the back side of a wall material, and a wall material construction in which such a ventilation member is used. [Means for solving the problem]

[0008] According to a first aspect of the present invention, there is provided a ventilation member to be attached to an upper end portion of a wall material, the ventilation member comprising a fixing plate portion, a top plate portion, a partition plate portion, a bottom plate portion, a front plate portion, and a first baffle plate portion.

[0009] The fixing plate portion has a first surface that contacts the building structure and a second surface opposite to the first surface, and has a first edge located on the upper side and a second edge located on the lower side in the vertical direction when in the attached state (when the ventilation member is attached to the upper end of the wall material). The top plate portion extends from the first edge of the fixing plate portion on the second surface side and has a third edge at its extending end. The partition plate portion extends downward in the vertical direction from the third edge of the top plate portion and has a fourth edge at its extending end. do.

[0010] The bottom plate portion extends from the fourth edge of the partition plate portion in a direction away from the fixed plate portion and has a fifth edge at its extended end. The front plate portion extends upward in the up-down direction from the fifth edge of the bottom plate portion and has a sixth edge at its extended end. The first baffle plate portion extends from the sixth edge of the front plate portion towards the partition plate portion.

[0011] The fixed plate, the partition plate, and the top plate form a lower opening into which the upper end of the wall material can be inserted. The partition plate, the front plate, and the bottom plate form an upper opening. The partition plate has an air vent, and the bottom plate has a water drainage hole.

[0012] The ventilation member having the above-mentioned configuration is attached to the upper end of the wall material when constructing the wall structure. Specifically, in a state where the upper end of the wall material is inserted into the above-mentioned lower opening of the ventilation member, the fixing plate part is fixed to the building frame together with the wall material abutting the second surface of the fixing plate part of the ventilation member. When the fixing plate part of the ventilation member is fixed to the building frame together with the wall material in a state where an air layer extending in the vertical direction along the wall material on the indoor side of the wall material is formed, the air layer communicates with the above-mentioned upper opening through a path along the first surface side of the fixing plate part and the back side of the wall material-opposing surface of the top plate part. At the same time, when the upper end of the wall material is inserted into the lower opening while being separated from the partition plate part, the air hole of the partition plate part that separates the upper opening and the lower opening is substantially in a state of being open to the outdoor side, and therefore the air layer further communicates with the outdoor through such an air hole. In addition, the ventilation layer also communicates with the outdoors through the drainage holes in the bottom plate, which are responsible for draining the water from the upper opening.

[0013] The ventilation member that can be used in this manner is suitable for ensuring sufficient ventilation in the ventilation layer provided on the back side of the wall material. When the ventilation member is attached to the upper end of the lower wall material in two wall materials that are arranged adjacent to each other, for example, near the center in the vertical direction of a wall structure, and used in the manner described above, the ventilation layer on the back side of the wall materials in the wall structure is prevented from being lower in pressure than other areas, for example, in the vertical direction in the central area, and ventilation throughout the entire ventilation layer is easily ensured. Ensuring ventilation throughout the entire ventilation layer is suitable for reducing the pressure difference between the ventilation layer and the outdoors, and is therefore suitable for preventing and suppressing the infiltration of water, such as rainwater, into the back side (indoor side) of the wall material.

[0014] Preferably, the top plate portion is inclined downward from the fixed plate portion to the partition plate portion in the vertical direction in the attached state. Such a configuration is suitable for preventing water droplets such as condensed water from flowing over the top plate portion toward the fixed plate portion in the present ventilation member, and is therefore suitable for preventing and suppressing water from infiltrating behind the wall material.

[0015] Preferably, the bottom plate portion is inclined downward in the up-down direction from the partition plate portion to the front plate portion. Such a configuration is preferable from the viewpoint of drainage to the outdoors at the upper opening.

[0016] Preferably, the first baffle portion is located above the top plate portion in the up-down direction. Such a configuration is suitable for ensuring an air passage above the top plate portion that communicates with the above-mentioned ventilation layer.

[0017] Preferably, the first baffle portion is inclined downward from the front plate portion toward the partition plate portion in the up-down direction. Such a configuration is suitable for suppressing the seepage of water such as rainwater from the upper opening toward the top plate portion, and is also suitable for preventing and suppressing the intrusion of water to the rear side of the wall material.

[0018] Preferably, the ventilation member is a first end The ventilation member further includes a second baffle portion extending upward in the up-down direction from the edge of the wall material. More preferably, the second baffle portion is inclined toward the top plate portion with respect to the extension plane of the fixed plate portion. These configurations are suitable for preventing water droplets such as condensation water from flowing over the top plate portion toward the fixed plate portion in the ventilation member, and are therefore suitable for preventing and suppressing water from infiltrating behind the wall material.

[0019] Preferably, the ventilation member further includes a third baffle plate extending from a third edge of the top plate toward the upper opening. This configuration is suitable for preventing water such as rainwater from seeping out from inside the upper opening to the top plate, and is also suitable for preventing and suppressing water from seeping behind the wall material.

[0020] Preferably, the ventilation member further includes a water-stopping member in contact with the top plate portion within the lower opening. Such a configuration is suitable for preventing and suppressing water from entering the back side of the wall material.

[0021] According to a second aspect of the present invention, there is provided a wall material installation structure. This wall material installation structure comprises a building skeleton, a first wall material, and the above-mentioned ventilation member relating to the first aspect. The fixing plate part of the ventilation member has a first surface that is in contact with the building skeleton. Between To Through the spacer The first wall material is fixed to the building structure in a state of abutment with the partition plate portion. The upper end of the first wall material is inserted into the lower opening of the ventilation member in a state of being spaced apart from the partition plate portion. A first ventilation layer is formed on the building structure side of the first wall material, extending in the vertical direction along the first wall material, and the ventilation hole of the ventilation member is connected to the first ventilation layer. 。

[0022] In such a wall material construction structure, the first ventilation layer is formed on the indoor side of the first wall material, extending vertically along the first wall material, and the fixing plate part of the ventilation member is fixed to the building frame together with the first wall material, so that the first ventilation layer communicates with the upper opening of the ventilation member through a path along the first surface side of the fixing plate part and the back side of the first wall material facing surface of the top plate part. At the same time, since the upper end part of the first wall material is inserted into the lower opening while being separated from the partition plate part, the ventilation hole of the partition plate part that separates the upper opening and the lower opening is substantially open to the outdoor side, and therefore the first ventilation layer further communicates with the outdoor through such ventilation hole. In addition, the first ventilation layer also communicates with the outdoor through the drainage hole of the bottom plate part that is responsible for draining the upper opening.

[0023] This type of wall material construction structure is suitable for ensuring sufficient ventilation in the ventilation layer (including the first ventilation layer) formed on the back side of the wall material. In a wall material construction structure, when two wall materials are arranged adjacent to each other, for example near the center in the vertical direction, and a ventilation member is attached to the upper end of the first wall material, which is the lower wall material, the ventilation layer on the back side of the wall material of the structure is prevented from being lower in pressure than other areas in the vertical direction, for example in the central area, and ventilation throughout the entire ventilation layer is easily ensured. Ensuring ventilation throughout the entire ventilation layer is suitable for reducing the pressure difference between the ventilation layer and the outdoors, and is therefore suitable for preventing and suppressing the infiltration of water, such as rainwater, into the back side of the wall material.

[0024] This wall material construction preferably further comprises a second wall material located above the first wall material and attached to the building frame, and a water drainage member.

[0025] The drainage member includes a drainage fixing plate portion, a drainage inclined plate portion, and a drainage plate portion. The drainage fixing plate portion is fixed to the building structure above the fixing plate portion of the ventilation member. The drainage inclined plate portion extends downward from the drainage fixing plate portion beyond the gap between the first wall material and the second wall material. The drainage plate portion extends downward from the lower end of the drainage inclined plate portion and abuts against the surface of the front plate portion of the ventilation member opposite the first baffle plate portion. A ventilation space is formed between the second wall material and the drainage inclined plate portion of the drainage member. In addition, a second ventilation layer is formed on the indoor side of the second wall material, extending vertically along the second wall material and communicating with the ventilation space.

[0026] The wall construction further includes such a drainage member, and prevents rainwater and other water from entering the back of the wall material. This is suitable for preventing and suppressing the infiltration of water into the ventilation layer (including both the first and second ventilation layers) formed on the back side of the wall material while ensuring sufficient ventilation. In a wall material construction structure, when two wall materials are arranged adjacent to each other, for example, near the center in the vertical direction, a ventilation member is attached to the upper end of the lower wall material (first wall material) and the above-mentioned water drainage member is arranged between the upper wall material (second wall material) and the first wall material, the ventilation layer on the back side of the wall material of the structure is prevented from being lower in pressure than other areas, for example, in the vertical direction in the central area, and ventilation is easily ensured throughout the entire ventilation layer. Ensuring ventilation throughout the entire ventilation layer is suitable for suppressing the pressure difference between the ventilation layer and the outdoors, and is therefore suitable for preventing and suppressing the infiltration of water, such as rainwater, into the back side of the wall material.

[0027] Preferably, the drainage plate portion extends from the lower end of the inclined drainage plate portion to a position below the front plate portion of the ventilation member. This configuration is suitable for preventing or suppressing the infiltration of water such as rainwater to the back side of the wall material. [Brief description of the drawings]

[0028] [Figure 1] 1 is a perspective view (partially cutaway perspective view) of a ventilation member according to one embodiment of the present invention. [Diagram 2] 2 is a partially enlarged perspective view (partially cutaway perspective view) of the ventilation member shown in FIG. 1. [Diagram 3] 3 is a cross-sectional view taken along line III-III of the ventilation member shown in FIG. 2. [Figure 4] 1 is a perspective view of a wall material construction structure according to one embodiment of the present invention; [Diagram 5] FIG. 5 is a vertical cross-sectional view of the wall material construction structure shown in FIG. [Figure 6] FIG. 1 is a cross-sectional view of a wall material construction according to one embodiment of the present invention. [Figure 7] FIG. 11 is a cross-sectional view of a modified example of the ventilation member. [Figure 8] FIG. 11 is a cross-sectional view of a modified example of the ventilation member. [Figure 9] FIG. 11 is a cross-sectional view of a modified example of the ventilation member. [Figure 10]FIG. 11 is a cross-sectional view of a modified example of the ventilation member. [Figure 11] FIG. 11 is a cross-sectional view of a modified example of the ventilation member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] 1 to 3 show a ventilation member X according to one embodiment of the present invention. Fig. 1 is a perspective view (partially cutaway perspective view) of the ventilation member X. Fig. 2 is a partially enlarged perspective view (partially cutaway perspective view) of the ventilation member X. Fig. 3 is a cross-sectional view taken along III-III of the ventilation member X shown in Fig. 2.

[0030] The ventilation member X is a ventilation member attached to the upper end of a wall material, and includes a fixed plate portion 10, a top plate portion 20, a partition plate portion 30, a bottom plate portion 40, a front plate portion 50, a first baffle plate portion 61, a second baffle plate portion 62, and a water-stopping member R. The fixed plate portion 10, the top plate portion 20, and the partition plate portion 30 form a lower opening U1 into which the upper end of the wall material can be inserted. The partition plate portion 30, the bottom plate portion 40, and the front plate portion 50 form an upper opening U2.

[0031] The fixing plate portion 10 has a first surface 11 that abuts against the building structure, and a second surface 12 opposite the first surface 11. The fixing plate portion 10 also has a first edge 13 located on the upper side in the vertical direction (vertical direction D) when the ventilation member X is attached to the upper end of the wall material, and a second edge 14 located on the lower side.

[0032] The top plate portion 20 extends from the first edge 13 of the fixed plate portion 10 toward the second surface 12, and has a third edge 21 at its extending end. The top plate portion 20 also has a third surface 22 on the lower opening U1 side, and a fourth surface 23 on the opposite side to the third surface 22. The third surface 22 faces the wall material when the wall material is inserted into the lower opening U1 of the ventilation member X. In this embodiment, the top plate portion 20 is inclined downward in the vertical direction D from the fixed plate portion 10 to the partition plate portion 30.

[0033] The partition plate portion 30 extends downward in the up-down direction D from the third edge 21 of the top plate portion 20, and has a fourth edge 31 at its extending end.

[0034] The bottom plate portion 40 extends from the fourth edge 31 of the partition plate portion 30 in a direction away from the fixed plate portion 10, and has a fifth edge 41 at its extending end. The bottom plate portion 40 also has a plurality of drainage holes 42. In this embodiment, the bottom plate portion 40 is inclined downward in the vertical direction D from the partition plate portion 30 to the front plate portion 50.

[0035] The front plate portion 50 extends upward in the vertical direction D from the fifth edge 41 of the bottom plate portion 40, and has a sixth edge 51 at its extending end (in Figs. 1 and 2, a first baffle plate portion 61, which will be described later, is shown partially cut away together with the front plate portion 50). The front plate portion 50 also has a fifth surface 52 on the partition plate portion 30 side, and a sixth surface 53 opposite to the fifth surface 52.

[0036] The first baffle portion 61 extends from the sixth edge 51 of the front plate portion 50 toward the partition plate portion 30. In this embodiment, the first baffle portion 61 is located above the top plate portion 20 in the vertical direction D. Additionally, in this embodiment, the first baffle portion 61 is inclined downward from the front plate portion 50 toward the partition plate portion 30 in the vertical direction D.

[0037] The second baffle plate portion 62 is disposed at the first end of the fixed plate portion 10. edge 13 toward the upper side in the vertical direction D. The second baffle plate portion 62 has a plurality of notches 62a.

[0038] The water-stopping member R is attached to the third surface 22 of the top plate portion 20 inside the lower opening U1. The water-stopping member R is made of, for example, a foamed resin material. Examples of such materials include foamed EPDM (ethylene propylene diene rubber).

[0039] The fixing plate portion 10, top plate portion 20, partition plate portion 30, bottom plate portion 40, front plate portion 50, first baffle plate portion 61, and second baffle plate portion 62 in the ventilation member X can be formed, for example, by forming necessary holes such as the ventilation holes 34 and the drainage holes 42 by punching a single steel plate cut to a predetermined size and shape, and then bending the same. In addition, the water-stopping member R is joined to the third surface 22 of the top plate portion 20 by using, for example, an adhesive, before or after the bending process.

[0040] 4 and 5 show a wall material construction structure Y1 constructed using a ventilation member X. FIG. 4 is a perspective view of the wall material construction structure Y1, and FIG. 5 is a vertical cross-sectional view of the wall material construction structure Y1. In FIG. 4, the vertical upward direction is indicated as "up" and the vertical downward direction is indicated as "down." In addition, in the direction from outdoors to indoors in FIG. 4, the horizontal left direction is indicated as "left" and the horizontal right direction is indicated as "right." The up and down directions and the indoor / outdoor directions in FIG. 5 are indicated in correspondence with FIG. 4.

[0041] In this embodiment, the wall material construction Y1 includes a building skeleton 100, a plurality of wall materials W, a ventilation member X, a spacer 70, a support 80, and a water drainage member 90. The wall material construction Y1 is constructed by attaching a plurality of wall materials W to the top, bottom, left and right of the building skeleton 100 constituting a building such as a house, a facility, or a warehouse. The building skeleton 100 may constitute a newly built building, or may constitute an existing building on which exterior renovation work is to be carried out.

[0042] In this embodiment, the building skeleton 100 is a steel-framed (S-framed) skeleton structure, with multiple steel materials 1 arranged as horizontal furring strips extending in the left-right direction. Examples of the steel materials 1 include C-shaped steel and square steel pipes. In this embodiment, a case in which the steel materials 1 are C-shaped steel is illustrated as an example. In this embodiment, a moisture-permeable waterproof sheet 2 is stretched across the multiple steel materials 1 on the indoor side of the steel materials 1.

[0043] The wall material W is an inorganic board such as a ceramic siding board, a metal siding board, or a ceramic board. The first wall material W1, which is located at the lower position of the two wall materials W shown in Figs. 4 and 5, is attached to the ventilation member X. Specifically, the first wall material W1 is inserted into the lower opening U1 of the ventilation member X with the upper end of the first wall material W1 separated from the partition plate portion 30 and in contact with the water-stopping member R. The second wall material W2, which is located at the upper position of the two wall materials W shown in Figs. 4 and 5, has an upper solid portion Wa on the lower end side. The plate thickness of the first wall material W1 and the second wall material W2 is, for example, 15 to 25 mm.

[0044] The ventilation member X is attached to the upper end of the first wall material W1, and is attached to the steel material 1 (steel material 1A) on the lower side in the figure via a spacer 70. Specifically, the ventilation member X and the first wall material W1 are attached to the steel material 1, which is part of the building skeleton 100, by, for example, drill screws that penetrate the first wall material W1, the spacer 70, the moisture-permeable waterproof sheet 2, and part of the steel material 1A from the outdoor side. The spacer 70 extends in the left-right direction and has a large number of through holes 71 that penetrate in the up-down direction.

[0045] A first air permeable layer P1 is formed between the first wall material W1, which is attached to the building structure 100 with the ventilation member X attached, and the building structure 100. Specifically, the first air permeable layer P1 is an air passage extending in the vertical direction along the first wall material W1 on the back side (indoor side) of the first wall material W1. In addition, the first air permeable layer P1 communicates with the ventilation hole 34 of the ventilation member X, as described later. With such a first air permeable layer P1 formed, the ventilation member X is fixed to the building structure 100 together with the first wall material W1.

[0046] The support 80 and the water drainage member 90 are attached to the steel material 1 (steel material 1B) at the top in the figure. Specifically, the support 80 and the water drainage member 90 are attached to the steel material 1B, which is part of the building skeleton 100, by, for example, a drill screw that penetrates the support 80, the water drainage member 90, the moisture-permeable waterproof sheet 2, and part of the steel material 1B from the outdoor side.

[0047] The support 80 has a support plate 81 including an engagement edge 81a that is bent or curved upward. The support 80 or the support plate 81 supports the lower end side of the second wall material W2 in such a manner that the engagement edge 81a engages with a step-shaped portion of the upper solid portion Wa of the second wall material W2. The support plate 81 has a plurality of ventilation holes 81b formed therein. The upper end side of the second wall material W2 is attached, for example, via a predetermined fixture to a steel material 1 (not shown) that is arranged higher than the steel material 1B. A second ventilation layer P2 is formed between the second wall material W2 and the building structure 100. The second ventilation layer P2 extends in the vertical direction along the second wall material W2 on the back side (indoor side) of the second wall material W2.

[0048] The drainage member 90 includes a drainage fixing plate portion 91, a drainage inclined plate portion 92, and a drainage plate portion 93. The drainage fixing plate portion 91 is fixed to a steel material 1B, which is a part of the building structure 100, above the fixing plate portion 10 of the ventilation member X. As shown in FIG. 5, a waterproof tape 3 may be attached to the upper end side of the drainage fixing plate portion 91 and the moisture-permeable waterproof sheet 2. The drainage inclined plate portion 92 is inclined downward from the drainage fixing plate portion 91 and extends beyond the gap between the first wall material W1 and the second wall material W2 to the outdoor side. The drainage plate portion 93 extends downward from the lower end 92a of the drainage inclined plate portion 92 and abuts against the sixth surface 53 of the front plate portion 50 of the ventilation member X (i.e., the surface of the front plate portion 50 opposite to the first baffle plate portion 61). In this embodiment, the drain plate portion 93 extends downward from the lower end 92a of the inclined drain plate portion 92 beyond the front plate portion 50 of the ventilation member X.

[0049] Between the drainage inclined plate portion 92 of the drainage member 90 and the second wall material W2, a ventilation space G is formed. The above-mentioned second ventilation layer P2 extending in the vertical direction along the second wall material W2 on the back side of the second wall material W2 communicates with the ventilation space G.

[0050] In the wall material construction Y1 as described above, the first air layer P1 extending in the vertical direction along the first wall material W1 is formed on the indoor side of the first wall material W1, and the fixing plate portion 10 of the ventilation member X is fixed to the building skeleton 100 together with the first wall material W1. The first air layer P1 communicates with the upper opening U2 in the ventilation member X through a path along the first surface 11 side of the fixing plate portion 10, the second baffle plate portion 62, and the fourth surface 23 side of the top plate portion 20 (the back side of the surface of the top plate portion 20 facing the first wall material W1). At the same time, since the upper end of the first wall material W1 is inserted into the lower opening U1 while being spaced apart from the partition plate portion 30, the ventilation holes 34 of the partition plate portion 30 that separates the upper opening U2 from the lower opening U1 are substantially open to the outdoors, and therefore the first ventilation layer P1 also communicates with the outdoors through the ventilation holes 34. In addition, the first ventilation layer P1 also communicates with the outdoors through the drainage holes 42 of the bottom plate portion 40 that is responsible for draining the upper opening U2.

[0051] In the wall material construction Y1, as described above, the ventilation space G is formed between the second wall material W2 and the drainage inclined plate portion 92 of the drainage member 90, and the second ventilation layer P2 extending in the vertical direction along the second wall material W2 on the indoor side of the second wall material W2 communicates with the ventilation space G. The second ventilation layer P2 communicates with the outside via the ventilation hole 81b and the ventilation space G.

[0052] Such a wall material construction structure Y1 is suitable for ensuring sufficient ventilation in the ventilation layer (including the first ventilation layer P1 and the second ventilation layer P2) formed on the back side of the wall material. When the two wall materials arranged adjacent to each other, for example near the center in the vertical direction in the wall material construction structure Y1 are the above-mentioned first wall material W1 and second wall material W2, the ventilation layer on the back side of the wall material of the structure is prevented from being lower in pressure than other areas, for example in the vertical center area, and ventilation throughout the entire ventilation layer is easily ensured. Ensuring ventilation throughout the entire ventilation layer is suitable for reducing the pressure difference between the ventilation layer and the outdoors, and is therefore suitable for preventing and suppressing the intrusion of water, such as rainwater, into the back side of the wall material.

[0053] In the wall material installation structure Y1, as described above, the top plate portion 20 of the ventilation member X is inclined downward in the vertical direction from the fixed plate portion 10 to the partition plate portion 30. Such a configuration is suitable for preventing water droplets such as condensed water from flowing over the top plate portion 20 toward the fixed plate portion 10 in the ventilation member X, and is therefore suitable for preventing and suppressing water from penetrating behind the wall material.

[0054] As described above, the bottom plate portion 40 of the ventilation member X is inclined downward in the vertical direction from the partition plate portion 30 to the front plate portion 50. Such a configuration is preferable from the viewpoint of drainage to the outdoors at the upper opening U2.

[0055] As described above, the first baffle portion 61 of the ventilation member X is located above the top plate portion 20 in the vertical direction. This configuration is suitable for ensuring an air passage above the top plate portion 20 that communicates with the above-mentioned first ventilation layer P1. Also, as described above, the first baffle portion 61 is inclined downward in the vertical direction from the front plate portion 50 toward the partition plate portion 30. This configuration is suitable for suppressing the seepage of water, such as rainwater, from within the upper opening U2 to the top plate portion 20 side, and is therefore suitable for preventing and suppressing the intrusion of water to the rear side of the wall material.

[0056] As described above, the ventilation member X is formed on the first side of the fixing plate portion 10. end The ventilation member X further includes a second baffle plate portion 62 extending upward from the edge 13 in the up-down direction. Such a configuration is suitable for suppressing water droplets such as condensation water from flowing over the top plate portion 20 toward the fixed plate portion 10 in the ventilation member X, and is therefore suitable for preventing and suppressing water from penetrating to the rear side of the wall material. In addition, the second baffle plate portion 62 has a plurality of notches 62a as described above. Such a configuration is suitable for ensuring the ease of air flow between the first surface 11 side of the fixed plate portion 10 and the fourth surface 23 side of the top plate portion 20, and therefore helps to ensure the above-mentioned breathability of the first ventilation layer P1.

[0057] As described above, the ventilation member X includes the water-stopping member R on the third surface 22 of the top panel portion 20 within the lower opening U1. This configuration is suitable for preventing or suppressing the intrusion of water from the outdoor side of the wall material to the indoor side of the wall material.

[0058] As shown in Fig. 6, the ventilation member X can also be used in a wall material construction structure (wall material construction structure Y2) in the eaves portion of the building skeleton 100. In Fig. 6, the vertically upward direction is indicated as "up," the vertically downward direction is indicated as "down," the indoor side direction is indicated as "indoors," and the outdoor side direction is indicated as "outdoors."

[0059] In the wall material construction Y2, the first wall material W1 is inserted into the lower opening U1 of the ventilation member X with the upper end of the first wall material W1 spaced apart from the partition plate portion 30. The ventilation member X is attached to the steel material 1 (steel material 1A) via a spacer 70 with the upper end of the first wall material W1 inserted into the lower opening U1. Specifically, the ventilation member X and the first wall material W1 are attached to the steel material 1, which is part of the building skeleton 100, by, for example, drill screws that penetrate the first wall material W1, the spacer 70, the moisture-permeable waterproof sheet 2, and part of the steel material 1 from the outdoor side. The spacer 70 has a large number of through holes 71 that extend in the left-right direction and penetrate in the up-down direction.

[0060] A first air permeable layer P1 is formed between the first wall material W1 attached to the building structure 100 and the building structure 100. Specifically, the first air permeable layer P1 is an air passage extending in the vertical direction along the first wall material W1 on the back side (indoor side) of the first wall material W1. The first air permeable layer P1 also communicates with the ventilation hole 34 of the ventilation member X. With such a first air permeable layer P1 formed, the ventilation member X is fixed to the building structure 100 together with the first wall material W1.

[0061] In the wall material construction Y2, the ventilation member X is disposed in contact with the eaves soffit material 4. The sixth edge 51 of the front plate portion 50 and the upper end of the second baffle plate portion 62 of the ventilation member X are in contact with the eaves soffit material 4. As described above, the second baffle plate portion 62 has a plurality of notches 62a. The notches 62a form an air passage between the first surface 11 side of the fixing plate portion 10 and the fourth surface 23 side of the top plate portion 20. Also, the eaves soffit material 4 is fixed to the steel material 1 (steel material 1C) by, for example, drill screws, as shown in FIG. 6.

[0062] In the wall material construction Y2 as described above, the first air layer P1 extending in the vertical direction along the first wall material W1 is formed on the indoor side of the first wall material W1, and the fixing plate portion 10 of the ventilation member X is fixed to the building skeleton 100 together with the first wall material W1. The first air layer P1 communicates with the upper opening U2 in the ventilation member X through a path along the first surface 11 side of the fixing plate portion 10, the notch 62a of the second baffle plate portion 62, and the fourth surface 23 side of the top plate portion 20 (the back side of the surface of the top plate portion 20 facing the first wall material W1). At the same time, since the upper end of the first wall material W1 is inserted into the lower opening U1 while being spaced apart from the partition plate portion 30, the ventilation holes 34 of the partition plate portion 30 that separates the upper opening U2 from the lower opening U1 are substantially open to the outdoors, and therefore the first ventilation layer P1 also communicates with the outdoors through the ventilation holes 34. In addition, the first ventilation layer P1 also communicates with the outdoors through the drainage holes 42 of the bottom plate portion 40 that is responsible for draining the upper opening U2.

[0063] Such a wall material construction structure Y2 is suitable for ensuring sufficient ventilation in the ventilation layer (including the first ventilation layer P1) formed on the back side of the wall material.

[0064] 7 to 11 show modified examples of the ventilation member X that can be used, for example, as described above in the construction of a wall material.

[0065] The ventilation member X may not include the second baffle plate portion 62, as shown in Fig. 7, for example. Moreover, the ventilation member X may not include the water blocking member R, as shown in Fig. 7, for example.

[0066] The ventilation member X may include a water-stopping member Ra as shown in Fig. 8, for example, instead of the above-mentioned water-stopping member R. The water-stopping member Ra is provided over the entire surface of the third surface 22 of the top plate portion 20. Such a water-stopping member Ra makes it easier to ensure water-stopping within the lower opening U1 when the upper end of the wall material is inserted into the lower opening U1 of the ventilation member X.

[0067] The ventilation member X may include, for example, a water-stopping member Rb as shown in Fig. 9, instead of the above-mentioned water-stopping member R. The water-stopping member Rb is provided on the third surface 22 of the top plate portion 20, midway from the fixing plate portion 10 to the partition plate portion 30. With such a water-stopping member Rb, it is possible to ensure water-stopping within the lower opening U1 when the upper end portion of the wall material is inserted into the lower opening U1 of the ventilation member X.

[0068] 10, the second baffle plate portion 62 of the ventilation member X may be inclined toward the top plate portion 20 with respect to the extension plane of the fixed plate portion 10. Such a configuration is suitable for preventing water droplets such as condensed water from flowing over the top plate portion 20 toward the fixed plate portion 10 in the ventilation member X, and is therefore suitable for preventing and suppressing water from infiltrating behind the wall material.

[0069] 10, the ventilation member X may further include a third baffle plate portion 63 extending from the third edge 21 of the top plate portion 20 toward the upper opening U2. This configuration is suitable for suppressing the seepage of water such as rainwater from within the upper opening U2 to the top plate portion 20 side, and is also suitable for preventing and suppressing the intrusion of water to the rear side of the wall material.

[0070] As shown in FIG. 11, for example, the second baffle plate portion 62 is inclined toward the top plate portion 20 with respect to the extension plane of the fixed plate portion 10, and the ventilation member X may be equipped with the above-mentioned water-stopping member Rb instead of the above-mentioned water-stopping member R, and may further be equipped with the above-mentioned third baffle plate portion 63.

[0071] Moreover, in the ventilation member X, the top plate portion 20 and the bottom plate portion 40 may each have a curved shape, such as an arc shape, instead of having a flat plate shape as described above. [Explanation of symbols]

[0072] X Ventilation material 10 Fixed plate part 11 Page 1 12 Side 2 13 First edge 14 Second edge 20 Top plate 21 Third edge 30 Partition plate 31 Fourth edge 34 Ventilation holes 40 Bottom plate part 41 5th edge 42 Drain hole 50 Front plate part 51 6th edge 61 First baffle plate 62 Second baffle plate section 63 Third baffle plate section R Water-stopping material U1 lower opening U2 upper opening Y1, Y2 wall construction structure W wall material W1 First wall material W2 Second wall material Wa upper part P1 First ventilation layer P2 Second ventilation layer 70 Spacer 80 Supports 90 Water drainage parts 91 Water drainage fixing plate 92 Water drainage inclined plate section 93 Water drainage plate G Ventilation passage

Claims

1. A ventilation member attached to an upper end of a wall material, a fixing plate portion having a first surface that contacts a building structure and a second surface opposite to the first surface, and having a first end edge located on the upper side and a second end edge located on the lower side in the vertical direction in the attached state; a top plate portion extending from the first end edge of the fixing plate portion toward the second surface side and having a third end edge at an extended end of the top plate portion; a partition plate portion extending downward in the up-down direction from the third edge of the top plate portion and having a fourth edge at an extended end of the partition plate portion; a bottom plate portion extending from the fourth edge of the partition plate portion in a direction away from the fixed plate portion and having a fifth edge at an extended end thereof; a front plate portion extending upward in the up-down direction from the fifth edge of the bottom plate portion and having a sixth edge at an extended end of the front plate portion; a first baffle plate portion extending from the sixth edge of the front plate portion toward the partition plate portion, the fixing plate portion, the partition plate portion, and the top plate portion form a lower opening into which an upper end portion of the wall material can be inserted, the partition plate portion, the front plate portion, and the bottom plate portion form an upper opening, The partition plate portion has an air hole, The bottom plate portion has a drain hole.

2. The ventilation member according to claim 1 , wherein the top plate portion is inclined downward in the vertical direction from the fixing plate portion to the partition plate portion.

3. The ventilation member according to claim 1 , wherein the bottom plate portion is inclined downward in the up-down direction from the partition plate portion to the front plate portion.

4. The ventilation member according to claim 1 , wherein the first baffle plate portion is located higher than the top plate portion in the up-down direction.

5. The ventilation member according to claim 1 , wherein the first baffle plate portion is inclined downward in the up-down direction from the front plate portion toward the partition plate portion.

6. The ventilation member according to claim 1 , further comprising a second baffle plate portion extending upward in the up-down direction from the first end edge of the fixing plate portion.

7. The ventilation member according to claim 6 , wherein the second baffle plate portion is inclined toward the top plate portion with respect to an extension plane of the fixed plate portion.

8. The ventilation member according to claim 1 , further comprising a third baffle plate portion extending from the third edge of the top plate portion toward the upper opening side.

9. The ventilation member according to claim 1 , further comprising a water-stopping member disposed within the lower opening and in contact with the top plate portion.

10. The building structure and A first wall material; A wall construction comprising the ventilation member according to any one of claims 1 to 9, the fixing plate portion of the ventilation member is fixed to the building structure with the first surface in contact with the building structure via a spacer, an upper end portion of the first wall material is inserted into the lower opening of the ventilation member in a state spaced apart from the partition plate portion; A first ventilation layer is formed on the building structure side of the first wall material, the first ventilation layer extending in a vertical direction along the first wall material, A wall material construction, wherein the ventilation hole of the ventilation member is in communication with the first ventilation layer.

11. a second wall material located above the first wall material and attached to the building frame; A water draining member, The water draining member is A drainage fixing plate portion fixed to the building structure above the fixing plate portion of the ventilation member; A drainage inclined plate portion that is inclined downward from the drainage fixed plate portion and extends beyond the gap between the first wall material and the second wall material; A drainage plate portion extending downward from a lower end of the drainage inclined plate portion and abutting against a surface of the front plate portion of the ventilation member opposite to the first baffle plate portion, A ventilation space is formed between the second wall material and the drainage inclined plate portion of the drainage member, 11. The wall material construction according to claim 10, wherein a second ventilation layer is formed on the building structure side of the second wall material, extending vertically along the second wall material and communicating with the ventilation space.

12. The wall material construction according to claim 11, wherein the drainage plate portion extends from a lower end of the inclined drainage plate portion to a position below the front plate portion of the ventilation member.

13. 13. The wall material construction according to claim 10, wherein the first surface of the ventilation member is attached to the building structure via a spacer and a moisture-permeable waterproof sheet.

Images