JP4789440B2 - Ventilation method for walls, balcony railings, buildings, and wall spaces - Google Patents

Description

TECHNICAL FIELD The present invention relates to wall ventilation of a wall body having a cap attached to the upper end surface, and in particular, a wall body capable of exchanging air between the wall space and the outdoor space, and a balcony handrail wall provided with the wall body And a building provided with the wall.
The present invention also relates to a ventilation method for exchanging air between the wall space and the outdoor space.

Conventionally, an outer wall of a building such as a house is constructed by assembling an outer wall finishing material to a frame. And the baseboard etc. of an interior material are attached to the indoor side surface of this frame. In such an outer wall, between the wall space enclosed by the members and frames disposed on the back side of the outer wall finishing material and the outer wall finishing material, and the under floor space, the ceiling back space or the shed space, A configuration in which a ventilation path for ventilation is provided is known (for example, see Patent Document 1).
JP 2000-8506 A (page 2-4, FIGS. 1 and 5)

  The outer wall described in Patent Document 1 is formed with an air passage that passes from the lower end of the wall body to the upper end of the wall body in the wall body of the outer wall panel. The outer wall of the building composed of these outer wall panels has a gap as an air inlet between the member at the lower end of the outer wall panel installed on the first floor and the draining material fixed to the upper end surface of the building foundation. Yes. This gap communicates with the air passage in the wall. On the other hand, an air outlet is formed at the upper end of the air passage. The air outlet communicates with the underfloor space or the attic space on the upper floor through a vent hole formed in the beam member or the girder member. Alternatively, the air outlet communicates with an air passage in the wall of a balcony parapet provided on the outer wall panel on the upper floor or on the rooftop.

  In such a configuration, when the air introduced into the wall from the air inlet is raised through the ventilation path and enters the lower floor space or the attic space on the upper floor, the inflow air is, for example, It is discharged to the outside through a ventilation hole provided in the wife wall. In addition, if the air that has risen through the ventilation passage in the wall enters the ventilation passage in the wall of the balcony parapet, this inflow air passes through the ventilation louver attached to the siding material at the upper end of the parapet. After being discharged to the back side of the headboard, it is configured to be discharged outside through a gap between the headboard and the siding material.

In the configuration of Patent Document 1, as in the balcony parapet, the upper part is not connected to the back of the hut or the upper floor outer wall panel, so the air flowing into the wall of the configuration in which the upper end of the ventilation path becomes a dead end is The air is discharged to the outside through a vent of a vent provided at the lower end.
However, in the structure of patent document 1, the ventilation part provided in the lower end part of the headboard is not completely stopped. Therefore, when exposed to a storm, outside air mixed with rainwater blows into the wall. In addition, in the structure of patent document 1, although the blowing of the rain water from the clearance gap between a cap and a wall body is suppressed by the meandering path | route in the ventilation | gas_flowing part, it is not prevented completely. Accordingly, there is a problem that rain leakage occurs when the rainwater blown in enters the indoors through the wall.

  In addition, in the wall body such as the handrail part and the parapet part with the headboard attached to the upper end in this way, the gap between the upper end surface of the wall body or the wall body and the headboard is completely sealed so that rainwater does not blow. As a result, the ventilation path becomes a completely closed path. Therefore, with such a configuration, the air in the wall cannot be discharged to the outside. Therefore, moisture that has entered the wall from the lower end of the panel and other gaps cannot be discharged to the outside, and the wall space cannot be ventilated. For this reason, there is a problem that the corrosion of the wood in the wall body is accelerated and the durability of the wall body is lowered.

The flow of air in the wall space in the conventional example will be described with reference to FIGS. FIG. 2 is a cross-sectional view of a building provided with a handrail wall 100 of a balcony portion of a conventional example. In this figure, as indicated by the solid line arrow (A), outside air passes through the air inlet 27 provided between the lower end portion of the first floor outer wall 20 and the base member 41 fixed on the foundation portion 40. Taken into the body. Then, the air that has risen through the first-floor outer wall ventilation path 26, which is a wall ventilation path, flows into the space behind the ceiling from a ventilation gap (not shown) provided in the trunk difference portion 30, as indicated by a dotted arrow (B). Then, as shown by the dotted arrow (C), it is raised into the wall of the second floor outer wall. In this case, as indicated by the dotted arrow (D), the air is discharged to the outside from the vents on the back of the eaves via the cabin space.
However, as shown in the solid line arrow (E), when the air rises into the air passage 116 in the wall of the handrail wall 100 of the balcony portion whose upper end is closed, in this case, the wall of the handrail wall 100 Since no air outlet is provided on the side surface of the, and the upper part of the air passage 116 is sealed, the rising air is not discharged to the back side of the headboard 115. Therefore, even if there is a gap that allows ventilation between the headboard 115 and the outer wall finishing material 114, the air in the wall is not discharged outdoors. That is, the handrail wall 100 cannot ventilate the wall.

  FIG. 3 is a conventional example in which the configuration of the conventional handrail wall similar to the balcony parapet of Patent Document 1 is applied to the handrail wall 200 of the balcony portion shown in FIG. In this figure, a gap X between the lower end portion of the headboard 215 and the outer wall finishing material 214 is communicated with the ventilation path 216 via a gap Y between the headboard fixing member 217 and the outer wall finishing material 214. Therefore, as shown by the solid line arrow (F), when air rises in the air passage 216 inside the handrail wall, the air in the air passage 216 can be discharged through the gap X and the gap Y. it can. However, as described above, such a configuration cannot prevent rainwater from entering the wall from the gap X and the gap Y.

In view of the above problems, the present invention provides a wall body in which rain water can be prevented from entering the wall body through a gap between the headboard attached to the upper end surface and the wall body and can be ventilated in the wall body. The purpose is to do. Moreover, it aims at providing the balcony handrail wall provided with this wall body, and the building provided with this wall body.
It is another object of the present invention to provide a method for ventilating a wall space in a wall body with a headboard attached to the upper end surface, in which air in the wall body is replaced without intrusion of rainwater.

According to the wall of claim 1, the subject is a wall having a front surface and a back surface facing an outdoor space and having a head member attached to an upper end surface, and the wall body A finishing member that divides the interior space of the wall, and a base member that is disposed on the back side of the finishing member and forms a wall ventilation path between a part of the finishing member , and represents the base member. A ventilation space that penetrates in the rear surface direction and communicates with the wall ventilation path, and a ventilation hole that communicates the wall ventilation path and the outdoor space, and the ventilation hole of the wall body Of the front surface or the back surface, the surface facing the inside of the building is the end side opposite to the upper end surface to which the cap member is attached, and is covered with the cap member that covers the upper end surface of the wall body. The finishing member on the surface side where the vent is provided A lower finishing member that covers the lower side of the wall and an upper finishing member that covers the upper side of the wall, and the lower end of the upper finishing member is connected to the upper end of the lower finishing member The in- wall ventilation path formed on the surface side provided with the vent is formed between the upper finishing material and the base member, and the vent is The problem is solved by the opening provided in the gap between the upper end of the lower finishing member and the lower end of the upper finishing member.

Thus, the wall according to claim 1 is made of a wall having a front surface and a back surface facing an outdoor space and having a head member attached to the upper end surface, for example, a balcony part of a house, Used as a wall constituting the handrail wall of the parapet part. In this wall body, a wall body air passage is formed between the frame and the finishing member. In addition, a ventilation port that communicates with the ventilation path connected to the wall ventilation path from the base member side and communicates with the ventilation path in the wall and the outdoor space is attached to the headboard member on the front or back surface of the wall. Open to the end side opposite to the upper end surface.

With this configuration, the gap between the headboard and the wall is filled with a caulking material, for example, to prevent water from being vented, or the upper end of the wall vent is sealed with a member that cannot be vented. Thus, even when rain water is prevented from entering the wall space, the wall air passage and the outdoor space can be communicated with each other through a vent provided in a portion other than the gap between the headboard and the wall. . Therefore, ventilation in the wall is possible even in a state in which rainwater intrusion from the gap between the headboard and the wall is prevented, and moisture that has entered the wall can be reliably discharged to the external space.
In addition, a vent hole communicated with the external space is provided on the wall surface on the opposite side to the side on which the wall ventilation path is provided. Therefore, for example, when the rising air from the lower floor flows into the ventilation path formed on one wall surface side of the wall body, the air is moved in the thickness direction of the wall body through the ventilation space. , It can be caused to flow into a space provided on the side of the wall opposite to the side where the rising air is introduced. And it can discharge | emit from the vent provided in the wall surface on the opposite side to the side into which the rising air was flowed.

According to a second aspect of the present invention, the ventilation space includes a tubular ventilation sleeve. The ventilation sleeve has an opening on one end side communicated with the ventilation passage on the surface side and the other end side. Can be configured to communicate with the passage in the wall on the back surface side .
If comprised in this way, the ventilation path which moves air to the thickness direction of a wall will be formed of the ventilation sleeve. Therefore, the air that has risen in the ventilation path formed on one wall surface side of the wall body passes through the ventilation sleeve and flows into the ventilation path on the opposite wall surface side, and the ventilation hole on the opposite wall surface side. Can be discharged from.

Further, as described in claim 1 , the surface-side finishing member provided with the vents includes a lower finishing member that covers the lower side of the wall body, and an upper finishing member that covers the upper side of the wall body. And the lower end of the upper finishing member is provided so as to cover the upper end of the lower finishing member from the outside of the wall body, and the vent is formed between the upper end of the lower finishing member and the upper finishing member. It can be configured to be an opening provided in a gap with the lower end.
With this configuration, the vent is provided in a gap-like space formed by overlapping the ends of the two plate-like finishing members disposed above and below, and this gap opens downward. Has been. Therefore, for example, a water draining piece that can prevent rainwater from entering is attached to the gap, and a draining member having a ventilation gap is attached, thereby allowing ventilation while preventing rainwater from entering.

According to a third aspect of the present invention, the wall body may be provided on the outer periphery of the building, and the vent hole may be provided on the surface of the wall body on the building inner side. As described above, in the wall body arranged on the outer periphery of the building, if the vent is provided on the surface inside the building rather than the outside of the building, the vent becomes invisible from the outside of the building. Therefore, the appearance of the building is not impaired by providing the vent hole, which is preferable.

According to a fourth aspect of the present invention, the ventilation space can be configured to be located above the ventilation port and closer to the upper end of the wall ventilation path.
In this way, when the outlet of the ventilation sleeve constituting the ventilation space is located above the ventilation hole, the gap between the ends of the finishing member divided into two parts in the vertical direction is overlapped as described in claim 1. In the case where a downward vent is provided, the opening of the vent sleeve is located on the back side of the upper finishing member located on the outside of the wall. Therefore, a space is secured between the opening of the ventilation sleeve and the finishing member, and this space serves as a ventilation path between the ventilation sleeve and the ventilation port, and the air flowing out from the ventilation sleeve is surely discharged. .
In addition, when the ventilation sleeve constituting the ventilation space is provided near the upper end of the wall body in this way, air near the upper end of the in-wall ventilation path serving as a bag path is likely to flow into the ventilation sleeve. Therefore, air is not retained even near the upper end of the wall ventilation path. Thereby, the moisture in a wall body is discharged | emitted more reliably.

And as described in Claim 5 , the balcony handrail wall provided with the wall body as described in the said claim can be comprised. Further, as described in claim 6 , a building including the wall body described in the above claim can be configured.

The method for ventilating the wall space according to claim 7 is the method for ventilating the wall space in the wall according to claim 2, wherein the air flowing into the wall air passage is passed through the wall air vent. It is characterized in that it is once raised to the upper end side of the road, then passed through the ventilation sleeve, moved to the ventilation port side, lowered, and discharged from the ventilation port to the external space. By ventilating the wall in this way, the rising air from the lower floor flows into the wall vent, and once rises to the vicinity of the upper end of the wall vent, this air passes through the vent sleeve. Then, by moving it in the thickness direction of the wall body and lowering it to the vent hole, it can be discharged from the vent hole provided on the wall surface on the opposite side to the side where the rising air is introduced. Further, since the air is once circulated to the vicinity of the upper end of the wall body and then moved to the vent hole side, the air in the vicinity of the upper end of the in-wall ventilation path that is a bag path is not retained. Thereby, the moisture in a wall body is discharged | emitted more reliably.

As described above, according to the present invention, the following effects can be obtained.
(A) The wall body of the present invention can connect the in-wall ventilation path and the outdoor space via a vent provided in a portion other than the gap between the headboard and the wall body. Therefore, ventilation in the wall can be performed in a state where rainwater intrusion is prevented. Accordingly, moisture that has entered the wall can be discharged to the external space while preventing rain leakage. As a result, the member in the wall is not corroded by moisture, and the durability of the member is improved.

(B) Further, in the wall body of the present invention, the vent hole communicated with the external space is provided on the wall surface on the opposite side to the side on which the in-wall air passage is provided. In addition, a ventilation path capable of moving air in the thickness direction of the wall is provided. More specifically, this ventilation path is constituted by a ventilation sleeve.
Therefore, even if the ventilation path into which the rising air from the lower floor flows is located on either the exterior or interior side of the building, this air is moved through the ventilation space in the thickness direction of the wall. And can be caused to flow into a space provided on the wall surface side opposite to the side where the ascending air is introduced. Therefore, the air can always be discharged from the vent on the inside of the building. Thereby, a vent can be provided in the position which is not visually recognized from the exterior of a building, and even if it provides a vent, the external appearance of a building is not impaired.

(C) In the method for ventilating the wall space of the present invention, the air that has flowed into the wall vent passage is once raised to the upper end side of the wall vent passage and then passed through the vent sleeve. It can be moved down to the vent side of the wall on the opposite side and discharged to the external space. Therefore, since air is once circulated to the vicinity of the upper end of the wall body and then moved to the vent side, the air in the vicinity of the upper end of the intra-wall air passage that is a bag path is not retained. Thereby, the moisture in a wall body is discharged | emitted more reliably.

Embodiments of the present invention will be described with reference to the drawings. Further, the arrangement, shape, and the like described below do not limit the present invention, and various modifications can be made in accordance with the spirit of the present invention.
FIG. 1 is an explanatory view showing a cross-sectional configuration of a balcony handrail wall and an air flow in the wall space of the balcony handrail wall according to an embodiment of the present invention. The balcony handrail wall of FIG. 1 is configured to be replaced with the handrail wall 100 of the balcony portion in the building having the conventional ventilation outer wall shown in FIG.

  The balcony handrail wall S of the present embodiment constitutes the handrail wall of the balcony portion of the wooden house, and as shown in FIG. 1, the top of the trunk difference portion 30 connected to the upper end of the first floor outer wall panel 20. Is attached. The balcony handrail wall S is configured to surround a balcony space by connecting a plurality of handrail wall panels 10 having a predetermined height and width in the horizontal direction.

  A handrail wall panel 10 constituting the balcony handrail wall S is fixed to a frame member 11 as a frame, a plate-like base board 12 fixed to both surfaces of the frame member 11, and a predetermined pitch on the outside of the base board 12. And the outer wall finishing material 14 (14 a, 14 b, 14 c) as a finishing member attached to the outside of the horizontal rail 13. The handrail wall panel 10 includes a headboard 15 attached to the upper end.

The frame member 11 is configured by assembling an upper frame member and a lower frame member having a predetermined cross section and left and right vertical frame members into a square shape. An intermediate rail may be provided between the upper frame member and the lower frame member or between the left and right vertical frame members. The upper frame material, the lower frame material, and the vertical frame material are made of laminated material, for example. In addition, it can also comprise by steel materials, such as a channel steel.
The base board 12 has a function as a load bearing surface material, and is a plate-like body having predetermined bending strength and shear strength, and can be, for example, plywood.
The outer wall finishing material 14 is attached to the outer peripheral surface of the handrail wall panel 10 and partitions the wall space of the handrail wall panel 10 and the outdoor space. For example, a cement plate, a slate plate, a calcium plate, etc. Is used. Moreover, the structure which attached the surface tile to the siding board or the tile base board may be sufficient.

  In the present embodiment, a gap is formed between the horizontal rail 13 and the base board 12 of the handrail wall panel 10 and the outer wall finishing material 14 (14a, 14c). The gap communicates from the upper end to the lower end of the handrail wall panel 10. This gap can be configured to be surely communicated, for example, by providing spacer hardware attached at predetermined intervals on the outer wall finishing material side of the cross rail 13. Further, instead of the horizontal beam 13, a vertical beam 13 ′ may be provided, and a spacer hardware may be attached to the vertical beam 13 ′. Alternatively, the vertical beam 13 ′ may be fixed to the outside of the horizontal beam 13 at a predetermined pitch, and the outer wall finishing material 14 (14a, 14c) may be fixed to the vertical beam 13 ′. In this way, the gap between the horizontal rail 13 and the vertical rail 13 ′ can be configured to communicate from the upper end portion to the lower end portion of the handrail wall panel 10.

  As described above, in the wall space of the handrail wall panel 10, the air passage 16 (16 a, 16 b) is formed on the back side of the outer wall finishing material 14 (14 a, 14 c). ing. Further, a layer made of another base material is provided on the back side of the outer wall finishing material 14 (14a, 14c), and between this base material and the base board 12, or this base material and the outer wall finishing material 14 (14a, 14c) A configuration may be adopted in which the space between them is the ventilation path 16 (16a, 16b). Moreover, the structure which provides multiple layers of base materials and makes the space between any one of the layers the ventilation path 16 (16a, 16b) may be sufficient.

  The headboard 15 is made of, for example, an aluminum material, but may be a steel material or a resin material, or may be made of a wood material. The headboard 15 has a surface that is wider than the wall thickness of the handrail wall panel 10 and is substantially horizontal, and extending pieces 15a each having a predetermined length are extended downward from both side ends of the horizontal surface. The extending piece 15a is provided so as to cover the upper end of the outer wall finishing material 14 (14a, 14c) from the outdoor side. Further, the headboard 15 is fixed to a headboard fixing member 17 attached to the upper end surface of the upper frame member constituting the frame member 11.

  The cap fixing member 17 is made of a water-resistant material, and can be the same material as the outer wall finishing material 14, for example. Further, the headboard fixing member 17 is in close contact with the end face of the base board 12 and the outer wall finishing material 14 (14a, 14c) on the upper end side of the panel. Here, the water stop process is performed to the clearance gap between the headboard fixing member 17 and the end surface of the outer wall finishing material 14 (14a, 14c). The water stop treatment can be performed, for example, by filling a caulking material. Moreover, the structure which stuck the water stop material, such as EPT and butyl rubber, on the lower surface of the cap fixing member 17 may be sufficient. In addition, it is good also as a structure which interposes a water stop material also between the headboard fixing member 17, the base board 12, and an upper frame material.

  If comprised in this way, the ventilation path 16 (16a, 16b) between the outer wall finishing material 14 (14a, 14c) and the base | substrate board 12 will become the structure by which the upper end was sealed by the headboard fixing member 17. FIG. Therefore, even if rainwater is blown in by strong wind from the gap between the outer wall finishing material 14 (14a, 14c) and the extending piece 15a, the rainwater does not enter the sealed ventilation path 16 (16a, 16b).

When replacing the handrail wall panel 10 of this embodiment with the handrail wall of the balcony part of the conventional example shown in FIG. 2, the handrail wall is placed on the trunk difference part 30 connected to the upper end of the first floor outer wall panel 20 of the building. Install the panel 10.
When attached in this way, the lower end of the ventilation path 16 (16a) is connected to the outer side of the torso member 31 having a predetermined cross section constituting the torso portion 30 and the torso portion base board 32 and the torso portion base board. 32 is communicated with a trunk difference portion air passage 36 which is a ventable space formed between the outer portion 32 and a trunk difference portion outer wall finishing material 34 fixed to the outer side of the bridge 32 or a fitting.

  The trunk difference portion ventilation path 36 is formed by a ventilation gap (not shown) provided between the trunk difference member 31 and the upper frame material of the first floor outer wall panel 20 below the first difference ceiling 37 and the balcony floor base member 38. It communicates with the ceiling space 39 between the two. Further, the lower end of the trunk difference air passage 36 communicates with a first floor outer wall air passage 26 provided between the base board 22 and the first floor outer wall finishing material 24 constituting the first floor outer wall panel 20.

  As shown in FIG. 2, the first-floor outer wall ventilation path 26 provided in the wall space of the first-floor outer wall panel 20 is configured to be able to vent air in the vertical direction, like the ventilation path 16 (16a). That is, the first-floor outer wall ventilation path 26 communicated from the upper end portion to the lower end portion of the first-floor outer wall panel 20 through a gap between the horizontal rail 23 and the base board 22 and the first-floor outer wall finishing material 24. It is a space. And the lower end of the 1st floor outer wall ventilation path 26 has a clearance gap between the base member 41 fixed with the anchor bolt on the foundation part 40 which consists of concrete foundations, for example, and the air inlet 27 is in this clearance gap. It is provided and the first floor outer wall ventilation path 26 and the outdoor space communicate with each other. The air inlet 27 is provided, for example, in a gap between a draining member (not shown) screwed to the base member 41 and the outer wall finishing material 24 of the first floor outer wall panel 20.

  With this configuration, the outside air taken into the wall space of the first-floor outer wall panel 20 from the air inlet 27 is raised through the first-floor outer wall air passage 26 and flows into the trunk difference air passage 36. The Then, the air flows into the ceiling space 39 through the air gap, or is further raised and flows into the air passage 16 (16a) of the handrail wall panel 10 of the present embodiment.

Here, the ventilation sleeve 50 and the vent 51 which are characteristic configurations in the handrail wall panel 10 of the present embodiment, and the ventilation method of the interior space of the balcony handrail wall S using the vent sleeve 50 and the vent 51 are described. explain.
First, the ventilation sleeve 50 will be described. As shown in FIG. 1, a base board 12 is attached to the frame member 11 from both sides so as to sandwich the frame member 11. And, between the outer wall finishing material 14 and the base board 12 on the inside side of the handrail wall panel 10 (arrow I side in FIGS. 1 and 2) and the outside of the building (arrow O side in FIGS. 1 and 2) Are respectively formed with ventilation paths 16 (16a, 16b). In other words, in the wall space of the handrail wall panel 10, the ventilation paths 16 are provided on the inside of the building and the outside of the building, respectively, with the frame member 11 interposed therebetween. And the ventilation sleeve 50 is provided so that it may become a ventilation path which connects the ventilation path 16 (16a) inside a building, and the ventilation path 16 (16b) outside the building.

The ventilation sleeve 50 is a member made of, for example, a resin tube, and is provided so as to penetrate the construction surface of the frame member 11 as a frame. That is, both ends are provided so as to face the thickness direction of the handrail wall panel 10. The openings at both ends are connected to openings formed in the base board 12 provided with the frame member 11 in between, and are fixed to the base board 12 by nailing. Thereby, the interior space of the ventilation sleeve 50 and the ventilation path 16 (16a, 16b) on the building interior side and the building exterior side of the handrail wall panel 10 are communicated with each other.
The ventilation sleeve 50 has a circular cross section, but the cross sectional shape is not limited to a circle, and may be a rectangular shape or an elliptical shape. Moreover, the middle part of the ventilation sleeve 50 may be configured in a bellows shape. If it does in this way, since it can expand-contract in the thickness direction, it can respond to the change of wall thickness, and is suitable. Further, the ventilation sleeve 50 is not limited to resin, but may be made of metal.

Next, the vent 51 will be described. In this embodiment, the outer wall finishing material 14 on the surface facing the building interior side of the handrail wall panel 10 is divided into two vertically. As described above, the outer wall finishing material 14 (14a) disposed on the upper side of the wall surface of the handrail wall panel 10 has a gap to be a ventilation path 16 (16a) between the lower board 12 and the base board 12. It is attached to the board 12 so as to keep a predetermined distance. On the other hand, the outer wall finishing material 14 (14 b) disposed on the lower side of the wall surface is attached so as to be in close contact with the base board 12. The upper end of the lower-side outer wall finishing material 14 (14b) is dimensioned so as to overlap the lower end of the upper-side outer wall finishing material 14 (14a) by a predetermined dimension.
Further, at this time, the ventilation sleeve 50 is provided on the upper side of the upper end portion of the lower-side outer wall finishing material 14 (14b). If it does in this way, the edge part of ventilation sleeve 50 will be connected to ventilation way 16 (16a).

  If it does in this way, the upper end part of the outer wall finishing material 14 (14b) of the lower part side is covered from the outer side by the lower end part of the outer wall finishing material 14 (14a) of the upper part side. A gap-like space opened downward is formed in the overlapping portion of the outer wall finishing material. And, in this gap-like space, a drain metal fitting 52 as a drain member having a water return piece 52a at the lower end is attached. Further, a vent opening (not shown) is formed in the drainage piece 52. Furthermore, a dedicated spacer member 53 is attached inside the gap-like space. By the spacer member 53, the interval between the outer wall finishing materials 14a and 14b is maintained at a predetermined size.

As described above, in this embodiment, the gap is maintained at a predetermined size by the spacer member 53, and a ventilation path from the space in the gap to the outdoor space is secured by the ventilation opening provided in the drainage piece 52. The gap-like space communicates with the ventilation path 16 (16a) located at the upper part. That is, the gap-shaped space functions as a vent 51 that reliably communicates the outdoor space with the vent path 16 (16 a) connected to the vent sleeve 50.
Thus, in this embodiment, since the vent hole 51 is provided at a position that is not covered by the headboard 15, the upper end of the wall body is sealed, and rainwater intrusion from the gap between the headboard 15 and the wall body is prevented. Even in this state, ventilation in the wall can be performed. Thereby, moisture in the wall can be discharged to the outside, so that the member in the wall is not corroded by moisture, and the durability of the member is improved.

Next, the ventilation method of the wall space of the balcony handrail wall S using the ventilation sleeve 50 and the ventilation hole 51 as the ventilation path will be described.
As described above, the outside air taken in from the air inlet 27 to become wall air is raised and circulated in the wall space of the first-floor outer wall panel 20 and the trunk difference portion 30, and the solid line arrow (G in FIG. As shown in FIG. 5, the air flows into the ventilation path 16 (16 b) located outside the building with respect to the frame member 11 in the wall space of the handrail wall panel 10. The air that has flowed in cannot be discharged from the upper end portion to the external space because the upper end portion of the air passage 16 (16b) is closed by the headboard fixing member 17.

  However, in this embodiment, the air in the ventilation path 16 (16b) located on the exterior side of the building relative to the frame member 11 passes through the ventilation sleeve 50 to the ventilation path 16 (16a) on the building interior side relative to the frame member 11. Inflow is possible. That is, as shown by a solid line arrow (H) in FIG. 1, the air in the wall is moved in the thickness direction of the wall through the ventilation sleeve 50, and the back side space of the exterior wall finishing material 14 (14c) on the outside of the building From, it can be moved to the back side space of the outer wall finishing material 14 (14a) inside the building. And the moved air is discharged | emitted from the vent 51 formed in the surface by the side of a building to outdoor space, as shown by the solid line arrow (J).

In this way, in the present embodiment, the rising air from the first-floor outer wall panel 20 is once raised to the upper end side of the ventilation path 16 (16b), and then the ventilation path 16 on the inner side of the building through the ventilation sleeve 50. It can move to (16a), can be lowered | hung from the exit of the ventilation sleeve 50, and can discharge | emit from the ventilation hole 51 of the building inside side.
Therefore, even when the ventilation path 16 (16b) into which the rising air from the lower floor flows is located on the building exterior side (arrow O side) as in this embodiment, this air is passed through the ventilation space. It can be moved in the thickness direction of the wall body and can flow into the space provided on the wall surface side opposite to the side where the ascending air is introduced. Therefore, air can always be discharged from the vent 51 provided on the inside of the building (arrow I side). Thereby, the vent 51 can be provided at a position where it cannot be seen from the outside of the building, and the appearance of the building is not impaired.

At this time, the ventilation sleeve 50 is provided on the upper end side of the panel with respect to the ventilation hole 51. If it is below the vent 51, the vent sleeve 50 is not connected to the vent path 16 (16a) on the inside of the building as described above. In addition, the air staying in the space above the ventilation sleeve 50 in the ventilation path 16 (16b) on the exterior side of the building that becomes a bag path is difficult to circulate. By providing in, it becomes difficult to retain air. In the present embodiment, the ventilation sleeve 50 is attached at a height of 910 mm from the balcony floor.
Thus, in this embodiment, since air is once circulated to the vicinity of the upper end of the ventilation path 16 (16b), it is moved to the vent 51 side, and is lowered and discharged. Air near the upper end of the road is not retained. Thereby, the moisture in a wall body is discharged | emitted more reliably. As a result, the member in the wall is not corroded by moisture, and the durability of the member is improved.

As described above, a plurality of handrail wall panels 10 are connected in the horizontal direction to form the balcony handrail wall S. At this time, the ventilation paths 16 (16b) of the adjacent handrail wall panels 10 communicate with each other. A horizontal ventilation path may be provided. In this case, since ventilation is performed between the handrail wall panels 10, it is not necessary to provide the ventilation sleeve 50 and the vent 51 in all the handrail wall panels 10.
Moreover, although the example applied as the handrail wall panel which comprises the balcony handrail wall of a house was described in this embodiment, the structure similar to this embodiment can be applied as a handrail wall of a parapet or an outdoor staircase. Of course. It can also be applied to buildings other than houses. In addition, it can be used for the wall of an outdoor passage.

It is explanatory drawing which shows the cross-sectional structure and ventilation path | route of the handrail wall panel of this embodiment. It is explanatory drawing which shows the ventilation method of the wall space of a prior art example. It is explanatory drawing which shows the cross-sectional structure and ventilation path | route of the handrail wall panel of a prior art example.

Explanation of symbols

10, 100, 200 Handrail wall panel 11 Frame member 12, 22 Base board 13, 23 Horizontal beam 13 'Vertical beam 14, 14a, 14b, 24, 114, 214 Outer wall finishing material 15, 115, 215 Head 15a Extension piece 16 , 16a, 16b, 116, 216 Ventilation path 17, 217 Kasaki fixing member 20 First floor outer wall panel 26 First floor outer wall ventilation path 27 Air inlet 30 Body difference part 31 Body difference part 32 Body difference part base board 34 Body difference part outer wall finish Material 36 Body difference part ventilation path 37 First floor ceiling 38 Balcony floor base member 39 Ceiling back space 40 Foundation part 41 Base member 50 Vent sleeve 51 Vent 52 Water drainage piece 52a Water return piece 53 Spacer members A, B, C, D, E, F, G, H, I, J, O Arrow S Balcony handrail wall X, Y Gap

Claims (7)

The front and back faces an outdoor space, and a wall with a head member attached to the upper end surface,
The wall includes a finishing member that partitions an outdoor space and a wall space, and a base member that is disposed on the back side of the finishing member and forms a wall ventilation path between a part of the finishing member. As well as
It comprises a ventilation space that penetrates the base member in the front and back direction and communicates with the wall ventilation path, and a vent that communicates the wall ventilation path and the outdoor space.
The vent is an end of the surface facing the inside of the building on the front or back surface of the wall, opposite to the upper end to which the head member is attached, and the upper end of the wall Opening to the part not covered with the headboard member covering
The surface side finishing member provided with the vent includes a lower finishing member that covers the lower side of the wall body, and an upper finishing member that covers the upper side of the wall body,
The lower end portion of the upper finishing member is provided so as to cover the upper end portion of the lower finishing member from the outside of the wall body,
The wall ventilation path formed on the surface side provided with the vent is formed between the upper finishing material and the base member,
The wall body, wherein the vent is an opening provided in a gap between an upper end portion of the lower finishing member and a lower end portion of the upper finishing member. The ventilation space includes a tubular ventilation sleeve,
2. The vent sleeve according to claim 1, wherein an opening on one end side communicates with the vent passage on the front side and an opening on the other end communicates with the passage on the back side. Wall body. The wall is provided on the outer periphery of the building,
The wall according to claim 1, wherein the ventilation hole is provided on a surface of the wall on the interior side of the building.   The wall according to claim 1, wherein the ventilation space is located above the ventilation hole and is provided near the upper end of the ventilation passage in the wall.   The balcony handrail wall provided with the wall body as described in any one of Claims 1 thru | or 4.   A building comprising the wall according to any one of claims 1 to 4. A ventilation method for a wall space in a wall according to claim 2,
The air that has flowed into the wall ventilation path is once raised to the upper end side of the wall ventilation path, then passed through the ventilation sleeve, moved to the ventilation hole side, and then lowered. A method for ventilating a wall space characterized by being discharged into the wall.

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