Ventilation structure and its construction method

Abstract

To provide a ventilation structure and a method for constructing the ventilation structure, which can reduce the work on the roof of the worker and improve the workability.SOLUTION: There is provided a ventilation structure of the circumference of a roof (roof panel 5) for taking in outside air to inside. The ventilation structure of the circumference of the roof (roof panel 5) includes a path forming member 20 that forms a ventilation path W and a support member 11 that supports the path forming member 20. The path forming member 20 is formed below an attachment position P of the support member attached to the circumference of the roof.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a roof periphery ventilation structure for taking outside air inside and a method for constructing the same. [Background technology]

[0002] BACKGROUND ART It is known in the past to provide a ventilation structure around the periphery of a roof (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses a configuration in which a winding drain ventilation path extending from the entrance of a ventilation opening toward the interior of a building is provided on the periphery of the roof. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-99220 Summary of the Invention [Problem to be solved by the invention]

[0005] In order to prevent rainwater from entering the ventilation path, it is common to lengthen the ventilation path. To lengthen the ventilation path, the ventilation path is formed so as to cross the mounting position of the support member that supports the ventilation path on the roof. In this case, the support member is mounted on the roof, and then the path-forming member that forms the ventilation path is attached to the support member. This has led to the problem of workers having to do more work on the roof.

[0006] Therefore, an object of the present invention is to provide a ventilation structure and a method for constructing the same that can reduce the amount of work that workers have to do on the roof and improve workability. [Means for solving the problem]

[0007] In order to achieve the above object, the ventilation structure of the present invention comprises: A ventilation structure around the roof edge to bring outside air inside, an integral path forming member having a ventilation path formed therein in advance; a support member attached to a mounting bracket provided on the periphery of the roof panel and supporting the path forming member; The support member has a side parapet attached to its side, The path forming member is integrated by attaching a second path forming member, a third path forming member, and a fourth path forming member, which divide the inner space and form the ventilation path meandering up and down, to the inside of a first path forming member which forms the outer shape of the ventilation path, The path forming member is attached to the lower part of the side parapet, and is disposed below the support member, The path forming member is characterized in that it is positioned below the mounting position of the support member by the mounting bracket.

[0008] Here, in the ventilation structure of the present invention, the path forming member includes: From the side of the side parapet to the side of the roof panel With respect to the direction of intrusion of the outside air , in a direction along the outer edge of the roof panel A side slit is provided that opens to 、 The side slit is formed by a through hole and a bridge having the side slit and covering the through hole. That's fine.

[0009] In the ventilation structure of the present invention, the support member Top for, The aforementioned Side parapet so as to slope obliquely upward from the vicinity of the upper end of the roof panel. Upper parapet but It may be attached.

[0010] Furthermore, the method for constructing a ventilation structure of the present invention is a method for constructing a ventilation structure for a periphery of a roof that takes in outside air, comprising: A second path forming member, a third path forming member, and a fourth path forming member that partition the inner space are attached to the inside of a first path forming member that forms the outer shape of the ventilation path, and the winding vertically Ventilation route By establishing preforming an integral channel-forming member; a ventilation path installation step of attaching a side parapet to a side of a support member and attaching the path forming member to a lower part of the side parapet, thereby disposing the path forming member under the support member; a support member mounting step of mounting the support member, to which the path forming member and the side parapet are attached, to a mounting fixture provided on the periphery of the roof panel at a mounting position above the path forming member; The method may further include a parapet attachment step of attaching an upper parapet from above to the support member attached to the peripheral edge of the roof panel. [Effects of the Invention]

[0011] The ventilation structure of the present invention configured as described above comprises an integral path forming member in which a ventilation path is formed in advance, and a support member attached to a mounting bracket provided on the periphery of the roof panel to support the path forming member, and a side parapet is attached to the side of the support member, The path forming member is integrated by attaching a second path forming member, a third path forming member, and a fourth path forming member, which divide the inner space and form the ventilation path meandering up and down, to the inside of a first path forming member which forms the outer shape of the ventilation path, The path-forming member is attached to the lower part of the side parapet, so that it is positioned below the support member and is located below the mounting position of the support member using the mounting bracket. Therefore, a ventilation structure can be created around the roof periphery, with the integrated path-forming member having a ventilation path pre-formed inside it, without crossing the mounting position of the support member to the roof. As a result, the support member to which the ventilation path-forming member and side parapet are attached can be attached to the periphery of the roof panel. This reduces the amount of work that workers need to do on the roof, improving workability.

[0012] In addition, the path forming member includes: From the side parapet to the roof panel Against the direction of outside air intrusion , along the outer edge of the roof panel A side slit is provided that opens to The side slit is formed by a through hole and a bridge having the side slit and covering the through hole. When the ventilation passage is provided, it is possible to prevent water from entering in the direction of the outside air intrusion and to secure a ventilation passage, so that the ventilation passage can be shortened while maintaining its waterproofness.

[0013] Also, the support member At the top of Side parapet so as to slope obliquely upward from the vicinity of the upper end of the roof panel. Upper parapet butIf a parapet is installed, the upper parapet can be installed after the support members with the side parapets attached are attached to the roof periphery, thereby reducing the amount of work required by workers on the roof and improving workability.

[0014] Furthermore, in the method for constructing a ventilation structure of the present invention, A second path forming member, a third path forming member, and a fourth path forming member that partition the inner space are attached to the inside of a first path forming member that forms the outer shape of the ventilation path, and the winding vertically Ventilation route By establishing preforming an integral channel-forming member; a ventilation path installation step of attaching a side parapet to a side of a support member and attaching the path forming member to a lower part of the side parapet, thereby disposing the path forming member under the support member; a support member mounting step of mounting the support member, to which the path forming member and the side parapet are attached, to a mounting bracket provided on the periphery of the roof panel at a mounting position above the path forming member; If the method includes a parapet installation process in which an upper parapet is installed from above to the support member attached to the periphery of the roof panel, the amount of work that workers have to do on the roof can be reduced, improving workability. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing the configuration of a unit building of a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing the gable decorative material of Example 1. [Figure 3] FIG. 2 is a cross-sectional view showing the gable decorative material of Example 1. [Figure 4] FIG. 2 is a perspective view showing a support member according to the first embodiment. [Figure 5] 5A and 5B are diagrams showing side slits of a path forming member of Example 1, in which FIG. 5A is a plan view and FIG. 5B is a cross-sectional view. [Figure 6] FIG. 10 is an exploded cross-sectional view illustrating a ventilation path attaching step according to the first embodiment. [Figure 7] FIG. 10 is an exploded cross-sectional view illustrating a support member mounting step according to the first embodiment. [Figure 8] FIG. 10 is an exploded perspective view illustrating a support member mounting step according to the first embodiment. [Figure 9] FIG. 1 is an exploded cross-sectional view illustrating the parapet installation process of the first embodiment. [Figure 10] FIG. 10 is an exploded cross-sectional view illustrating a method for constructing a conventional ventilation structure. [Figure 11] FIG. 10 is an exploded cross-sectional view illustrating a method for constructing a conventional ventilation structure. [Figure 12] FIG. 10 is an exploded cross-sectional view illustrating a method for constructing a conventional ventilation structure. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment for realizing a ventilation structure and a method for constructing the same according to the present invention will be described based on Example 1 shown in the drawings. [Example]

[0017] The ventilation structure and the method for constructing the same in the first embodiment are applied to a unit building constructed by transporting building units manufactured in advance in a factory to a construction site and assembling a plurality of building units side by side at the construction site.

[0018] [Unit building configuration] 1 is a perspective view showing the configuration of the unit building of Example 1. The configuration of the unit building of Example 1 will be described below.

[0019] As shown in FIG. 1, a unit building 1 is constructed by assembling a first-floor building unit 3, a second-floor building unit 3, and roof panels 5 and 6 on a foundation 2.

[0020] The roof panel 5 is installed in a flat position with no inclination so as to cover the center of the unit building 1. The roof panel 5 forms a flat roof with no inclination.

[0021] The roof panels 6 are installed in an inclined position around the periphery of the roof panel 5. The roof panels 6 form a sloped roof.

[0022] On the periphery of the roof panel 5, a gable decorative material 10 is installed to prevent rain from blowing into the unit building 1. The gable decorative material 10 is arranged so as to follow the outer edge of the roof panel 5.

[0023] [Composition of gable decorative material] Fig. 2 is an exploded perspective view showing the gable decorative material 10 of Example 1. Fig. 3 is a cross-sectional view showing the gable decorative material 10 of Example 1. Fig. 4 is a perspective view showing the support member of Example 1. Fig. 5 is a diagram showing the side slits of the path forming member of Example 1, with Fig. 5(a) showing a plan view and Fig. 5(b) showing a cross-sectional view. The configuration of the gable decorative material 10 of Example 1 will be described below.

[0024] As shown in FIG. 2, the gable decorative material 10 is attached to the periphery of the roof panel 5 to prevent rain from blowing into the unit building 1 and to take in outside air to ventilate the attic of the unit building 1, etc.

[0025] As shown in FIG. 3, the gable decorative material 10 includes a support member 11, a path forming member 20 that forms a ventilation path, and a parapet 30 that includes a side parapet 31 and an upper parapet 32.

[0026] (support member) 2, a plurality of support members 11 are arranged at predetermined intervals around the periphery of the roof panel 5. The support members 11 are installed perpendicular to the tip end surface of the roof panel 5.

[0027] As shown in Figures 3 and 4, the support member 11 is formed by bending sheet metal, and includes a main body portion 12, a first support portion 13 and a second support portion 14 formed in the front portion of the main body portion 12, a third support portion 15 formed in the upper portion of the main body portion 12, and a fourth support portion 16 formed in the rear portion of the main body portion 12.

[0028] A water return passing member 8 having a generally U-shaped cross section that extends along the periphery of the roof panel 5 is attached with rivets to the first support portion 13. The first support portion 13 is formed with a through hole 13a for a bolt 41 and a through hole 13b for a screw S that is formed above the through hole 13a. Like the first support portion 13, the water return passing member 8 is formed with a through hole for a bolt 41 and a through hole for a screw S.

[0029] The bolt 41 is installed in the mounting bracket 7 with its tip facing outward from the unit building 1. The bolt 41 may be fixed to the mounting bracket 7 by, for example, welding.

[0030] In the ventilation structure configured in this manner, the first support part 13 and the water return passage member 8 are attached to the mounting fixture 7 with bolts 41, nuts 42, and screws S. Mounting position P1 (P) where the first support part 13 and the water return passage member 8 are attached to the mounting fixture 7 with bolts 41 and nuts 42, and mounting position P2 (P) where they are attached to the mounting fixture 7 with screws S, are formed above the path forming member 20.

[0031] The third support part 15 has a plurality of through holes 15a (two in Example 1) formed therein for screws S. The upper parapet 32 ​​is attached to the third support part 15 by bringing the upper parapet 32 ​​into contact with the third support part 15 and driving the screws S in from above. In other words, the upper parapet 32 ​​is attached to the top of the support member 11.

[0032] The fourth support portion 16 is formed with a through hole 16a (one in Example 1) for a screw S and a through hole 16b (one in Example 1) for a rivet D. The side parapet 31 is attached to the fourth support portion 16 by bringing the side parapet 31 into contact with the fourth support portion 16, driving the screw S from above, and driving the rivet D from the side. In other words, the side parapet 31 is attached to the side of the support member 11.

[0033] (Parapet) As shown in FIG. 3, the parapet 30 is formed by a side parapet 31 and an upper parapet 32 ​​so as to have a substantially L-shaped cross section.

[0034] The side parapets 31 are formed in a plate shape and are installed in an upright position. The upper parapet 32 ​​is formed in a plate shape and is formed in an position that slopes diagonally upward from near the upper end of the side parapet 31. The upper parapet 32 ​​is attached to the support member 11 with screws S. The side parapets 31 are attached to the support member 11 with screws S and rivets D.

[0035] A path forming member 20 is attached to the lower part of the side parapet 31 with a rivet D. An EPTSEAL 51 is provided as a waterproofing material between the upper parapet 32 ​​and the side parapet 31. An EPTSEAL 53 is provided as a waterproofing material between the upper parapet 32 ​​and the roof panel 5.

[0036] (path forming member) 3, the path forming member 20 is formed below the attachment positions P1 and P2. The path forming member 20 is composed of a first path forming member 21, a second path forming member 22, a third path forming member 23, and a fourth path forming member 24, and forms a ventilation path W. The ventilation path W is formed to meander up and down.

[0037] The first path forming member 21 is provided below the path forming member 20. A side slit 21a, which will be described later, is formed in the first path forming member 21. The side slit 21a constitutes a ventilation opening for the ventilation path W.

[0038] The second path forming member 22 is provided at the rear of the path forming member 20 and above the first path forming member 21 so as to block the ventilation path W. The second path forming member 22 is formed with side slits 22a, which will be described later.

[0039] The third path forming member 23 is provided at the rear of the path forming member 20 and above the second path forming member 22. The fourth path forming member 24 is provided in front of the third path forming member 23 and above the first path forming member 21.

[0040] The second path-forming member 22, the third path-forming member 23, and the fourth path-forming member 24 are attached to and integrated with the first path-forming member 21 by rivets D. The integrated path-forming member 20 is attached to the side parapet 31 by rivets D.

[0041] An EPTSEALER 52 as a waterproofing material is provided between the path forming member 20 and the roof panel 6. A spacer member 9 is provided between the first path forming member 21 and the water return passing member 8.

[0042] (side slit) 5(a) and 5(b), the side slits 21a, 22a are formed by a bridge-shaped bridge portion B extending in the front-rear direction and a through-hole A formed below the bridge portion B. As a result, the side slits 21a, 22a have openings C on the sides relative to the direction in which outside air enters.

[0043] A plurality of side slits 21a, 22a can be formed at predetermined intervals (for example, 3 mm) in the vertical direction perpendicular to the longitudinal direction.

[0044] [How to build a ventilation structure] Fig. 6 is an exploded cross-sectional view for explaining the ventilation path installation step of Example 1. Fig. 7 is an exploded cross-sectional view for explaining the support member installation step of Example 1. Fig. 8 is an exploded perspective view for explaining the support member installation step of Example 1. Fig. 9 is an exploded cross-sectional view for explaining the parapet installation step of Example 1. A method for constructing the ventilation structure of Example 1 will be described below.

[0045] (Ventilation path installation process) As shown in Figure 6, in the ventilation path installation process, the side parapet 31 is attached to the support member 11 with screws S and rivets D. Also, the path forming member 20 is attached to the side parapet 31 with rivets D. Also, the water return passing member 8 is attached to the support member 11 with rivets D. In this way, the side parapet 31, path forming member 20, and water return passing member 8 are attached to the support member 11.

[0046] (Support member installation process) As shown in Figure 7, in the support member installation process, the support member 11 is moved from the outside to the inside of the roof panel 5, and the bolts 41 attached to the mounting brackets 7 provided on the periphery of the roof panel 5 are inserted into the through holes of the first support portion 13 and the water return passage member 8.

[0047] Then, with the water return passage member 8 in contact with the mounting bracket 7, as shown in Figure 8, a worker M standing on the roof panel 5 tightens the nuts 42 and drives the screws S to attach the support member 11 to the periphery of the roof panel 5. In other words, the support member 11 with the path forming member 20 attached is attached to the mounting bracket 7 attached to the periphery of the roof panel 5 at attachment positions P1, P2 above the path forming member 20.

[0048] In this case, the mounting position P1 where the nut 42 is attached to the bolt 41 and the mounting position P2 where the screw S is used for attachment are located above the path forming member 20, so that the path forming member 20 does not interfere with the work of the worker M standing on the roof panel 5.

[0049] (Parapet installation process) As shown in FIG. 9, in the parapet attachment step, the upper parapet 32 ​​is placed from above on the support member 11 attached to the periphery of the roof panel 5, and the upper parapet 32 ​​is attached to the support member 11 with screws S.

[0050] At this time, an Eptsealer 51 is interposed between the upper parapet 32 ​​and the support member 11. An Eptsealer 53 is interposed between the upper parapet 32 ​​and the roof panel 5. Through the above steps, a ventilation structure for the periphery of the roof panel 5 is constructed.

[0051] [Effects of ventilation structure and its construction method] The following describes the operation of the ventilation structure and its construction method of Example 1. The ventilation structure of Example 1 is a ventilation structure for the periphery of a roof (roof panel 5) for taking outside air inside. This ventilation structure includes a path forming member 20 that forms a ventilation path W and a support member 11 that supports the path forming member 20, and the path forming member 20 is formed below the mounting position P of the support member 11 that is attached to the periphery of the roof (FIG. 3).

[0052] This allows for a ventilation structure around the periphery of the roof (roof panel 5) where the ventilation path W does not cross the mounting position P of the support member 11 to the roof (roof panel 5). Therefore, the support member 11 to which the ventilation path W is attached can be attached to the periphery of the roof (roof panel 5). This reduces the amount of work that the worker M has to do on the roof (roof panel 5), improving workability.

[0053] Furthermore, the worker M can use tools or the like to attach the support member 11, to which the path forming member 20 is attached, to the periphery of the roof (roof panel 5) from inside the periphery of the roof (roof panel 5) at an attachment position P above the path forming member 20. In other words, the worker M does not need to work outside the periphery of the roof (roof panel 5). This ensures work safety and improves workability.

[0054] In the ventilation structure of the first embodiment, the path forming member 20 is provided with side slits 21a and 22a that open laterally relative to the direction in which outside air enters (FIG. 5).

[0055] By providing the side slits 21a, 22a, it is possible to prevent water from entering in the direction in which outside air enters and to secure the ventilation path W. Therefore, it is possible to shorten the ventilation path W while maintaining the waterproofness of the ventilation path W.

[0056] In the ventilation structure of Example 1, a side parapet 31 attached to the side of the support member 11 and an upper parapet 32 ​​attached to the upper part of the support member 11 are attached to the support member 11 (Figure 3).

[0057] This allows the upper parapet 32 ​​to be attached after the support members 11 with the side parapets 31 attached are attached to the periphery of the roof (roof panel 5). This reduces the amount of work that the worker M has to do on the roof (roof panel 5), improving work efficiency.

[0058] Furthermore, the worker M, who is located inside the periphery of the roof (roof panel 5), can install the upper parapet 32. In other words, the worker M does not need to work outside the periphery of the roof (roof panel 5). As a result, the ventilation structure can be easily assembled by the worker M.

[0059] The method for constructing a ventilation structure in Example 1 is a method for constructing a ventilation structure for the periphery of a roof (roof panel 5) that takes outside air inside. This construction method includes a path forming member attaching step of attaching path forming members 20 that form a ventilation path W to support members 11, a support member attaching step of attaching the support members 11, with the path forming members 20 attached, to the periphery of the roof (roof panel 5) at attachment positions P above the path forming members 20, and a parapet attaching step of attaching a parapet (upper parapet 32) from above to the support members 11 attached to the periphery of the roof (roof panel 5) (FIGS. 6 to 9).

[0060] Incidentally, the conventional method of constructing a ventilation path involves attaching a support member 110 to a roof panel 5 at attachment positions P3 and P4 with screws S, as shown in Fig. 10, attaching a path-forming member 120 across attachment positions P3 and P4 as shown in Fig. 11, and then attaching a parapet 130 as shown in Fig. 12. This lengthens the ventilation path W and prevents water from entering the ventilation path W. This poses a problem in that worker M has to do a lot of work on the roof.

[0061] In the first embodiment, the support member 11 to which the ventilation path W is attached can be attached to the periphery of the roof (roof panel 5) at attachment positions P1 and P2 above the ventilation path W. This reduces the amount of work that the worker M has to do on the roof (roof panel 5), improving workability.

[0062] Furthermore, the worker M can use tools or the like to attach the support member 11, to which the path forming member 20 is attached, to the periphery of the roof (roof panel 5) from inside the periphery of the roof (roof panel 5) at an attachment position P above the path forming member 20. In other words, the worker M does not need to work outside the periphery of the roof (roof panel 5). This ensures work safety and improves workability.

[0063] The ventilation structure and the method for constructing the same of the present disclosure have been described above based on Example 1. However, the specific configuration is not limited to this Example, and design changes and the like are permitted as long as they do not deviate from the gist of the invention according to each claim in the scope of the claims.

[0064] In the first embodiment, the side slits 21a, 22a are formed in a bridge shape. However, the side slits may be formed in any shape as long as they open laterally relative to the direction in which outside air enters, such as a lance shape or a louver shape.

[0065] In Example 1, an example was shown in which the gable decorative material 10 was installed on the periphery of a flat, flat roof panel 5. However, the gable decorative material of the present invention can also be installed on the periphery of a sloped roof.

[0066] In Example 1, an example in which the present invention is applied to a unit building is shown. However, the present invention can also be applied to buildings constructed by other construction methods such as the conventional construction method or the two-by-four construction method. [Explanation of symbols]

[0067] 1 unit building 5 Roof panel (example of roof) 11 Support member 20 Path forming member 21a Side slit 22a Side slit 31 Side Parapet 32 Upper Parapet P1 Mounting position P2 installation position W ventilation route

Claims

1. A ventilation structure around the edge of a roof to bring outside air inside, An integral path forming member having a ventilation path formed therein in advance; a support member attached to a mounting bracket provided on a periphery of the roof panel and supporting the path forming member; The support member has a side parapet attached to a side thereof, The path forming member is integrated by attaching a second path forming member, a third path forming member, and a fourth path forming member, which divide the inner space and form the ventilation path meandering up and down, to the inside of a first path forming member that forms the outer shape of the ventilation path, The path forming member is attached to the lower part of the side parapet, and is disposed under the support member, The path forming member is located below the mounting position of the support member by the mounting bracket. A ventilation structure characterized by:

2. The path forming member is provided with a side slit that opens in a direction along the outer edge of the roof panel with respect to the intrusion direction of the outside air from the side of the side parapet toward the side of the roof panel, The side slit is formed by a through hole and a bridge having the side slit and covering the through hole. The ventilation structure according to claim 1 .

3. An upper parapet is attached to the upper portion of the support member so as to slope obliquely upward from the upper end of the side parapet toward the roof panel. The ventilation structure according to claim 1 or 2.

4. A method for constructing a roof perimeter ventilation structure that takes in outside air, comprising the steps of: A second path forming member, a third path forming member, and a fourth path forming member which divide the inner space are attached to the inside of a first path forming member which defines the outer shape of the ventilation path, and the ventilation path which meanders up and down is formed in advance as an integrated path forming member; a ventilation path installation step of attaching a side parapet to a side of a support member and attaching the path forming member to a lower portion of the side parapet, thereby disposing the path forming member under the lower portion of the support member; a support member mounting step of mounting the support member to which the path forming member and the side parapet are attached to a mounting fixture provided on a periphery of a roof panel at a mounting position above the path forming member; and a parapet installation step of installing an upper parapet from above to the support member attached to the peripheral edge of the roof panel. A method for constructing a ventilation structure.

Images