Ventilation ridge

Abstract

To provide a ventilation ridge capable of preventing the intrusion of wind and rain and the intrusion of insects or the like, obtaining high performance ventilation capacity and having excellent workability.SOLUTION: The roof structure includes a base ventilation member 2 fixed to a sheathing roof board 43 via a backing material 45 and having a lower end side provided above a roof material 42, a sealing strip ventilation member 3 locked to a lower end of the base ventilation member and provided in a gap between the roof material and the base ventilation member, and a ridge wrapping member 4 covering the base ventilation member and the sealing strip ventilation member from above. A lower end side vent hole 7 connected to a space below the base ventilation member from the ventilation passage is formed on the lower end side of the base ventilation member, and a sealing strip vent hole 8 connected to the outdoors from the space below the base ventilation member is formed in the sealing strip ventilation member. Accordingly, a high-performance ventilation ridge, in which the infiltration of wind and rain and the infiltration of insects or the like can be prevented, is obtained.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a ventilation ridge provided at a ventilation opening in the roof of a house or the like. [Background technology]

[0002] BACKGROUND ART Conventionally, a ridge structure is known in which a ventilation opening is provided at the ridge portion of the roof of a house or the like to enable ventilation with the outdoors. For example, Patent Document 1 discloses a ventilation structure that can be installed on the roof ridge of a general house or the like to ventilate the interior of the room. The ventilation structure disclosed in this document consists of a ridge substrate arranged at an opening provided on the roof ridge, a ventilation ridge frame fixed to the ridge substrate, and a ventilation ridge envelope supported from the back side by the ventilation ridge frame, with a drainage space provided between the ventilation ridge envelope and the roof surface, and multiple air vents provided in the ventilation ridge envelope.

[0003] For example, Patent Document 2 discloses that a ventilation device installed to cover a ventilation opening formed in the ridge portion of a roof comprises a main body member attached to the roof surface via a base member, and a cover member arranged above the main body member, and that the ventilation passage formed between the main body member and the cover member is provided with a ventilation member having a baffle portion that allows air to pass through but prevents water from passing through. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-167405 [Patent Document 2] Japanese Patent Publication No. 2022-159185 Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional ventilation towers have some areas that need improvement in order to provide excellent ventilation performance and prevent the intrusion of rainwater and insects. Specifically, in a configuration in which multiple air vents are provided in the ventilation ridge envelope that forms the upper surface of the ventilation passage through which ventilation air flows, such as the conventional technology disclosed in Patent Document 1, rainwater may seep into the interior of the ventilation passage through the air vents, and the rainwater that has seen the ventilation passage may seep into the attic through the open area.

[0006] Furthermore, in a configuration in which a ventilation member equipped with a baffle plate or the like that prevents rainwater from entering is provided inside the ventilation passage, as in the prior art disclosed in Patent Document 2, the structure of the ventilation member or the like becomes complicated, making it difficult to construct a ventilation ridge. Furthermore, because the baffle plate or the like is provided inside the ventilation passage, there is a risk that insects, birds, etc. may enter the inside of the ventilation passage on the outdoor side of the baffle plate or the like and obstruct the air flow.

[0007] The present invention has been made in consideration of the above circumstances, and its object is to provide a ventilation building that can prevent the intrusion of wind, rain, and insects, etc., has high-performance ventilation capacity, and is easy to install. [Means for solving the problem]

[0008] The ventilation ridge of the present invention is a ventilation ridge installed on the roof of a building, and comprises a base ventilation member fixed to the upper surface of the sheathing board via a base material extending in a direction along the ridge and with its lower end located above the roof material, a face door ventilation member engaged with the lower end of the base ventilation member, and a ridge wrap member located above the base ventilation member and the face door ventilation member and covering the base ventilation member and the face door ventilation member, and is characterized in that between the base ventilation member and the ridge wrap member, a ventilation passage is formed whose upper end connects to the interior through a ventilation opening formed in the roof, and through which ventilation air flows, and at the lower end side of the base ventilation member, a lower end vent is formed which connects the ventilation passage to the space formed between the base ventilation member and the roof material, and the face door ventilation member is formed with a face door vent which connects the space between the base ventilation member and the roof material to the outdoors. [Effects of the Invention]

[0009] The ventilated ridge of the present invention comprises a base ventilation element fixed to the upper surface of the sheathing boards via a base material and with its lower end above the roofing material, a ventilator element attached to the lower end of the base ventilation element, and a ridge wrap element attached above the base ventilation element and the ventilator element, covering the base ventilation element and the ventilator element. A ventilation passage is formed between the base ventilation element and the ridge wrap element, the upper end of which connects to the interior through a ventilation opening formed in the roof, and a lower end vent is formed at the lower end of the base ventilation element, connecting the ventilation passage to the space formed between the base ventilation element and the roofing material, and a vent is formed in the ventilator element, connecting the space between the base ventilation element and the roofing material to the outdoors. This configuration provides high-performance ventilation while preventing the intrusion of wind, rain, insects, birds, etc.

[0010] Specifically, the base ventilation member and the panel door ventilation member are covered from above by the ridge wrapping member, so rainwater cannot seep into the ventilation passage from above the base ventilation member and the panel door ventilation member, and insects, birds, etc. cannot enter. In addition, the panel door ventilation member is provided between the roof material and the vicinity of the lower end of the ridge wrapping member, which serves as the entrance and exit for air, so the panel door ventilation member prevents wind and rain from entering from outside and insects from entering.

[0011] The ventilation passage is designed to allow air to flow into the space above the base ventilation member, i.e., the space between the base ventilation member and the ridge wrapper, and the lower end of the ventilation passage is connected to the space below the base ventilation member, i.e., the space between the base ventilation member and the roofing material, via the lower end vent. Therefore, even if rainwater enters the space below the base ventilation member through the vent in the door panel due to strong winds during rainfall, the infiltrating rainwater is unlikely to pass through the lower end vent. In other words, rainwater is unlikely to enter the ventilation passage formed above the base ventilation member.

[0012] In addition, the ventilation passage is formed with a lower end ventilation hole and a face door ventilation hole, and by appropriately setting the sizes of the lower end ventilation hole and the face door ventilation hole, it is possible to prevent the entry of insects, birds, etc. while ensuring a ventilation passage.

[0013] The ventilation system is designed to be easy to install, with the base ventilation member fixed to the top surface of the sheathing board via the base material, and the door ventilation member is fastened to the bottom end of the base ventilation member, allowing workers to install the ventilation system efficiently.

[0014] In addition, in the ventilated ridge of the present invention, the base ventilation member has a bottom surface portion fixed to the sheathing board via the base material and extending parallel to the sheathing board, a lower end side rising surface portion bent upward from the lower end of the bottom surface portion, a lower end side top end portion bent from the tip of the lower end side rising surface portion toward the upper end side of the base ventilation member and supporting the ridge wrapping member, and a locking piece portion bent downward from the tip of the lower end side top end, and the face door ventilation member has a face door portion extending downward along the lower end side rising surface portion and a face door portion bent from the upper end of the face door portion to follow the lower end side top end and a locking portion bent downward from the tip of the support portion along the locking piece portion and folded back so that its tip is hooked onto the tip of the locking piece portion, the ridge wrapping member has a top plate portion extending parallel to the bottom surface portion and supported on the lower end top end portion via the support portion, and a hanging portion bent downward from the lower end of the top plate portion, the panel door ventilation member has an upper portion of the panel door sandwiched between the lower end side rising surface portion and the hanging portion, and the support portion is sandwiched between the lower end side top end portion and the panel portion and supported by the base ventilation member. With this configuration, workers can easily perform construction, and a ventilated ridge can be obtained that can prevent the intrusion of wind, rain, insects, etc., and can provide high-performance ventilation.

[0015] In addition, in the ventilation ridge of the present invention, the lower end side air vent may be formed in the bottom surface portion, and the face door air vent may be formed in the face door portion below the lower end side raised surface portion. With this configuration, a high-performance ventilation ridge can be obtained that can prevent rainwater from entering even during strong winds.

[0016] In addition, in the ventilated ridge of the present invention, the ridge wrapping member has a hanging inclined portion that is bent from the lower end of the hanging portion and inclined toward the eaves, and the face door portion of the face door ventilation member has an inclined surface portion that is inclined along the hanging inclined portion and a tip face door portion that is bent downward from the tip of the inclined surface portion and further bent toward the upper end of the base ventilation member, and the face door vent may be formed in the tip face door portion. This allows for high-performance ventilation with little intrusion of rainwater or insects, for example, on flat roofs.

[0017] In addition, in the ventilated ridge of the present invention, the upper end of the base ventilation member may be provided above the ventilation opening, and an upper end vent hole may be formed at the upper end of the base ventilation member that connects the ventilation opening to the ventilation passage. This prevents rainwater or insects from entering the ventilation opening and insects from entering, even if rainwater or insects pass through the door vent hole and the lower end vent hole, by providing an appropriate size for the upper end vent hole. Furthermore, by providing the upper end of the base ventilation member above the ventilation opening, the upper end of the base ventilation member can support the ridge wrap member provided above.

[0018] In addition, in the ventilated ridge of the present invention, the ventilation opening may be provided with an L-shaped throw-away member with one surface supported between the sheathing board and the base material, and the L-shaped throw-away member may be formed with a throw-away member vent hole through which ventilation air flowing through the ventilation opening can pass. This allows for high-performance ventilation with excellent water drainage, for example, in a shed roof.

[0019] Furthermore, according to the ventilated roof of the present invention, the roof may be a flat roof or a tiled roof. Workers can efficiently construct a high-performance ventilated roof that can prevent wind and rain from entering a flat roof or a tiled roof. This allows for high-performance ventilation with little intrusion of rainwater or insects on a flat roof or a tiled roof.

[0020] Furthermore, according to the ventilation ridge of the present invention, the roof may be a flat roof. Workers can efficiently construct a high-performance ventilation ridge that can prevent wind and rain from entering the flat roof. This allows for high-performance ventilation with less intrusion of rainwater and insects on the flat roof. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a cross-sectional view showing a schematic configuration of a ventilation tower according to an embodiment of the present invention. [Figure 2] 1A is a side cross-sectional view, FIG. 1B is a rear view, and FIG. 1C is a bottom view showing an outline of a base ventilation member according to an embodiment of the present invention. [Figure 3] 1A and 1B are a side cross-sectional view and a front view, respectively, showing an outline of a face door ventilation member according to an embodiment of the present invention. [Figure 4] 1 is a side cross-sectional view showing an outline of a ridge wrapping member according to an embodiment of the present invention. [Figure 5] 1 is a front view showing a schematic configuration of a ventilation tower according to an embodiment of the present invention. [Figure 6] FIG. 10 is a cross-sectional view showing the schematic configuration of a ventilation tower according to another embodiment of the present invention. [Figure 7] 10A and 10B are a side cross-sectional view and a front view, respectively, showing an outline of a face door ventilation member according to another embodiment of the present invention. [Figure 8] FIG. 10 is a cross-sectional view showing the schematic configuration of a ventilation tower according to another embodiment of the present invention. [Figure 9] FIG. 10 is a cross-sectional view showing the schematic configuration of a ventilation tower according to another embodiment of the present invention. [Figure 10] FIG. 10 is a cross-sectional view showing the schematic configuration of a ventilation tower according to another embodiment of the present invention. [Figure 11] FIG. 10 is a cross-sectional view showing the schematic configuration of a ventilation tower according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, a ventilation tower according to an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a cross-sectional view showing the schematic configuration of a ventilation ridge 1 according to an embodiment of the present invention. Referring to Fig. 1, the ventilation ridge 1 is provided on the ridge portion of the roof 40 of a building such as a house, and enables ventilation between the indoors and outdoors, such as in the attic, and prevents rainwater from entering the indoors.

[0023] First, we will explain in detail the roof 40 to which the ventilation ridge 1 is attached. The roof 40 is, for example, a flat-roofed roof or a tile-roofed roof. Specifically, roofing materials 42 for a flat-roofed roof or a tile-roofed roof are provided above sheathing boards 43 that are fixed to the top of rafters 44 and form the flat surface of the roof 40.

[0024] The rafters 44, sheathing boards 43, and roofing materials 42 are arranged so that their upper ends are near the ridge in the center of the roof 40 and slope downward on both sides, i.e., toward the eaves (not shown) on both sides. The sheathing boards 43 and roofing materials 42 that make up the sloped surfaces on both sides of the roof 40 are arranged so that the upper ends of the sloped surfaces on both sides do not abut at the central ridge, and ventilation openings 41 are formed at the ridge that allow air to circulate between the indoor and outdoor sides.

[0025] It should be noted that an underlayment 47 such as an asphalt waterproof sheet or other roofing material (not shown) may be provided on the top surface of the sheathing board 43, i.e., between the sheathing board 43 and the roofing material 42, or between the sheathing board 43 and an L-shaped throw-away member 46 (described later). This makes it possible to more reliably prevent rainwater from entering the building.

[0026] In addition, base materials 45 for attaching a ventilation ridge 1 are provided on the upper surface near the upper end of the sheathing boards 43. The base materials 45 are provided on both sloped surfaces of the roof 40 so as to extend along the extension direction of the ridge, and the base materials 45 on both sloped surfaces are provided at a distance so as to form ventilation openings 41 in the ridge portion.

[0027] Furthermore, an L-shaped throw-out member 46 may be provided at the ventilation opening 41 to prevent rainwater from entering the interior. The L-shaped throw-out member 46 is formed from a metal plate material such as a galvanized steel plate, and has a generally L-shaped cross section that extends along the extension direction of the ridge, with one surface sandwiched and supported between the sheathing board 43 and the base material 45, and the other surface extending upward.

[0028] A pair of L-shaped throw-out members 46 are provided on both inclined surfaces of the ventilation opening 41 so that their upwardly extending surfaces face each other. That is, the ventilation opening 41 is formed between the pair of L-shaped throw-out members 46. By providing such L-shaped throw-out members 46, the effect of preventing rainwater from entering the interior of the building can be further improved in a configuration in which ventilation is possible through the ventilation opening 41.

[0029] Next, we will explain in detail the configuration of the ventilation ridge 1. The ventilation ridge 1 is arranged above the ventilation opening 41 formed in the ridge of the roof 40 so as to cover the ventilation opening 41, and has a base ventilation member 2, a face door ventilation member 3, and a ridge wrapping member 4, each of which is made of a metal plate material such as a galvanized steel plate.

[0030] The base ventilation members 2 are provided in pairs on both sloping surfaces of the roof 40 and are fixed to the upper surface of the sheathing boards 43 via base materials 45. The upper end side of the base ventilation members 2, i.e., the top side of the roof 40, is provided above the ventilation openings 41 of the roof 40, and the lower end side, i.e., the eaves side (not shown), is provided above the roof material 42.

[0031] Although not shown in the drawings, the upper end side of the base ventilation member 2 does not have to be located directly above the ventilation opening 41. In other words, the upper end side of the base ventilation member 2 may be located directly above the base material 45 without protruding from the top surface of the base material 45 toward the top side.

[0032] The face door ventilation members 3 are provided in pairs on both sloping surfaces of the roof 40, and are respectively fastened to the lower ends of the base ventilation members 2 on both sloping surfaces. In other words, the face door ventilation members 3 are supported by the lower ends of the base ventilation members 2, and are provided above the roof material 42 on the eaves side of the base material 45.

[0033] The ridge wrapping member 4 is provided above the base ventilation member 2 and the panel door ventilation member 3 so as to cover the entire base ventilation member 2 and panel door ventilation member 3 on both sloping surfaces from above. Between the base ventilation member 2 and the ridge wrapping member 4, a ventilation passage 5 is formed through which ventilation air flows.

[0034] At the upper end side of the base ventilation member 2, a vent hole 6 is formed as an upper end side vent hole that connects from the ventilation opening 41 to the ventilation passage 5. At the lower end side of the base ventilation member 2, a vent hole 7 is formed as a lower end side vent hole that connects from the ventilation passage 5 to the space formed between the base ventilation member 2 and the roof material 42. The panel door ventilation member 3 has a vent hole 8 formed therein as a panel door vent that connects the space between the lower end side of the base ventilation member 2 and the roof material 42 to the outdoors.

[0035] With this configuration, an air passage is formed that connects the indoors to the outdoors via the ventilation opening 41, the ventilation hole 6, the ventilation passage 5, the ventilation hole 7, and the ventilation hole 8 in that order, and the ventilation ridge 1 can achieve high-performance ventilation capabilities while also preventing the intrusion of wind and rain and the intrusion of insects, birds, etc.

[0036] Figures 2(A) to (C) are diagrams showing an outline of the base ventilation member 2, where Figure 2(A) is a side cross-sectional view, Figure 2(B) is a rear view, i.e., a view from the top end side, and Figure 2(C) is a bottom view, i.e., a view from below.

[0037] 1 and 2(A), the base ventilation member 2 has a bottom surface 10 that is fixed to a sheathing board 43 via a base material 45 and extends parallel to the sheathing board 43. Specifically, the bottom surface 10 of the base ventilation member 2 is fixed to the base material 45 by, for example, a fixing screw 60. The fixing screw 60 may pass through the base material 45 and be fixed to the base material 45 and the sheathing board 43. Alternatively, for example, the fixing screw 60 may pass through the base material 45 and the sheathing board 43 and be fixed to the base material 45, the sheathing board 43, and the rafters 44.

[0038] The fixing screws 60 may be screws with waterproof packing. This prevents the rainwater from leaking into the base material 45 or the sheathing board 43 through the screw holes of the fixing screws 60, even if rainwater seeps into the ventilation passage 5 due to strong winds or the like.

[0039] The upper end side of the base ventilation member 2 is formed with an upper end side raised surface portion 11 bent upward from the upper end of the bottom surface portion 10, an upper end side top end portion 12 bent from the tip of the upper end side raised surface portion 11 toward the lower end side of the base ventilation member 2 and supporting the base ventilation member 2, and a reinforcing piece portion 13 bent downward from the tip of the upper end side top end portion 12.

[0040] Although not shown in the drawings, the base ventilation member 2 may have a configuration in which the upper end side does not have the upper end side rising surface portion 11, the upper end side top edge portion 12, and the reinforcing piece portion 13. In such a case, the ventilation passage 5 formed between the base ventilation member 2 and the ridge wrapping member 4 opens at the upper end side and connects to the ventilation opening 41.

[0041] The lower end side of the base ventilation member 2 is formed with a lower end side raised surface portion 14 bent upward from the lower end of the bottom surface portion 10, a lower end side top end portion 15 bent from the tip of the lower end side raised surface portion 14 toward the upper end side of the base ventilation member 2 and supporting the base ventilation member 2, and a locking piece portion 16 bent downward from the tip of the lower end side top end portion 15.

[0042] The width dimension of the base ventilation member 2, i.e., the width L1 of the bottom surface portion 10, is, for example, 60 to 130 mm, or preferably 70 to 100 mm. The height dimension of the base ventilation member 2, i.e., the height L2 of the upper end side raised surface portion 11 and the lower end side raised surface portion 14, is, for example, 10 to 50 mm, or preferably 15 to 30 mm.

[0043] By forming the base ventilation member 2 in this form, it is lightweight and has suitable strength, and the panel door ventilation member 3 and ridge wrapping member 4 can be easily attached, forming a suitable passage for ventilation.

[0044] As shown in Fig. 2(B), a ventilation hole 6 is formed in the upper end side rising surface portion 11 of the base ventilation member 2. Referring to Figs. 1 and 2(B), the ventilation hole 6 is an upper end side ventilation hole, and is an opening that connects the ventilation opening 41 and the ventilation passage 5.

[0045] The ventilation holes 6 are, for example, generally oval in shape extending in the vertical direction, and are arranged in a horizontal line. The dimensions of the ventilation holes 6 are, for example, a length L3 of 1 to 50 mm, preferably 2 to 30 mm, a width L4 of 1 to 15 mm, preferably 2 to 10 mm, and a distance L5 between the ventilation holes 6 of, for example, 1 to 15 mm, preferably 2 to 10 mm.

[0046] By forming the ventilation hole 6 in this form, a suitable passage is obtained that allows air to flow for ventilation, and also a suitable passage that can prevent the intrusion of wind and rain, and the intrusion of insects, birds, etc.

[0047] As shown in Fig. 2(C), a ventilation hole 7 is formed on the lower end side of the bottom surface portion 10. Referring to Figs. 1 and 2(C), the ventilation hole 7 is a lower end side ventilation hole, and is an opening that connects the ventilation passage 5 with the space formed between the base ventilation member 2 and the roof material 42.

[0048] The ventilation holes 7 are, for example, generally oval in shape extending from the upper end to the lower end, and are formed in a plurality so as to be aligned in the extension direction of the base ventilation member 2, i.e., the extension direction of the ridge. The dimensions of the ventilation holes 7 may be, for example, approximately the same as those of the ventilation holes 6. That is, for example, the length L6 is 1 to 50 mm, preferably 2 to 30 mm, the width L7 is 1 to 15 mm, preferably 2 to 10 mm, and the distance L8 between the ventilation holes 7 is, for example, 1 to 15 mm, and more preferably 2 to 10 mm.

[0049] Forming the ventilation hole 7 in this form provides a suitable passageway through which ventilation air can flow, and also provides a suitable passageway that can prevent the intrusion of wind and rain, and the intrusion of insects, birds, etc. Furthermore, since the ventilation hole 7 is formed on the lower end side of the inclined bottom surface portion 10 of the base ventilation member 2, even if rainwater enters the ventilation passageway 5, the intruding rainwater can be returned to the outdoors.

[0050] Although not shown in the drawings, the ventilation holes 6 and 7 may be substantially rectangular, elliptical, circular, square, or the like. The ventilation holes 6 and 7 may be formed as louver- or grill-shaped air holes by, for example, cutting the base ventilation member 2 in a straight line and press-molding it. The ventilation holes 6 and 7 may also be formed in multiple rows, such as two or three rows.

[0051] Although not shown, the end edges 17 at both longitudinal ends of the base ventilation member 2 may have bent portions, for example, bent upward from the end edges 17 or folded back approximately horizontally. This increases the strength of the base ventilation member 2.

[0052] 3(A) and (B) are diagrams showing an outline of the panel door ventilation member 3, with Fig. 3(A) being a side cross-sectional view and Fig. 3(B) being a front view, i.e., a view seen from the eaves side. Referring to Figs. 1, 2(A) and 3(A), the panel door ventilation member 3 has a panel door portion 18 that is supported by the lower end side rising surface portion 14 of the base ventilation member 2 and extends downward along the lower end side rising surface portion 14.

[0053] The vicinity of the upper end of the face door portion 18 forms an attachment surface portion 19 that is supported by the base ventilation member 2 by being sandwiched between the lower end side raised surface portion 14 of the base ventilation member 2 and the hanging portion 27 of the ridge wrapping member 4 described later. A bent folded piece 24 may be formed at the lower end of the face door portion 18 to ensure the strength of the face door ventilation member 3.

[0054] At the upper end of the face door portion 18, i.e., at the upper end of the mounting surface portion 19, a support portion 20 is formed that is bent from the face door portion 18 to fit along the lower end top edge portion 15 of the base ventilation member 2. At the tip of the support portion 20, a locking portion 21 is formed that is bent downward from the support portion 20 to fit along the locking piece portion 16 of the base ventilation member 2 and is folded back so that its tip can be hooked onto the tip of the locking piece portion 16.

[0055] With this configuration, workers can easily attach the face door ventilation member 3 to the lower end side of the base ventilation member 2. That is, the face door ventilation member 3 can be attached to the base ventilation member 2 by hooking the tip of the locking portion 21 of the face door ventilation member 3 onto the tip of the locking piece portion 16 of the base ventilation member 2, and abutting the locking portion 21 against the locking piece portion 16, the support portion 20 against the lower end top edge portion 15, and the mounting surface portion 19 against the lower end rising surface portion 14.

[0056] The face door ventilation member 3 may be in contact with the roof material 42, but it is preferable that it not be in contact with the roof material 42. In other words, it is preferable to provide a gap of, for example, 1 to 10 mm between the lower end of the face door portion 18 of the face door ventilation member 3 and the flat portion 59 of the roof material 42. In this way, by providing a gap between the face door ventilation member 3 and the roof material 42 without bringing the face door ventilation member 3 and the roof material 42 into contact with each other, deterioration of the ventilation ridge 1 and the roof material 42 due to electrolytic corrosion, etc. can be prevented.

[0057] As shown in Figure 3(B), ventilation holes 8, which are panel door ventilation holes, are formed in the panel door portion 18 of the panel door ventilation member 3. For more details, referring to Figures 1, 2(A), 3(A) and 3(B), a plurality of ventilation holes 8 are formed in the panel door portion 18 that is below the lower end raised surface portion 14 of the base ventilation member 2, i.e., in the panel door portion 18 that is below the mounting surface portion 19 that abuts against the lower end raised surface portion 14.

[0058] The ventilation hole 8 is a face door ventilation hole, and is an opening that connects the space between the lower end side of the base ventilation member 2 and the roof material 42 with the outdoors, allowing ventilation air to circulate. The ventilation holes 8 are, for example, generally oval in shape extending from top to bottom, and are arranged in a row in the horizontal direction in which the panel door ventilation member 3 extends, i.e., in the direction in which the ridge extends. The dimensions of the ventilation holes 8 are, for example, a length L9 of 1 to 35 mm, preferably 2 to 20 mm, and a width L10 of 1 to 15 mm, preferably 2 to 10 mm. The distance L11 between the ventilation holes 8 is, for example, 1 to 15 mm, and preferably 2 to 10 mm. The distance L12 from the lower end of the panel door portion 18 to the ventilation holes 8 is 0 to 20 mm, preferably 2 to 15 mm.

[0059] By forming the ventilation hole 8 in this form, a suitable passage is obtained that allows air to flow for ventilation, and also a suitable passage that can prevent the intrusion of wind and rain, and the intrusion of insects, birds, etc.

[0060] Although not shown in the drawings, the ventilation holes 8 may be formed in a substantially rectangular, elliptical, circular, square, or other shape, and may also be formed in multiple rows, such as two or three rows. The ventilation holes 8 may also be formed as louver- or grill-shaped air holes by, for example, cutting the panel door portion 18 of the panel door ventilation member 3 in a straight line and press-molding it.

[0061] 4 is a side cross-sectional view showing an outline of the ridge wrapping member 4. Referring to FIGS. 1 to 4, the ridge wrapping member 4 has a top plate portion 26 that extends parallel to the bottom surface portion 10 of the base ventilation member 2 and is supported by the upper top end portion 12 and the lower top end portion 15.

[0062] Specifically, the top plate portion 26 is formed to have a generally inverted V-shape in side view, so as to cover from above a pair of base ventilation members 2 provided on both sloping surfaces of the roof 40. The top plate portion 26 of the ridge wrapping member 4 is supported on the top end 12 of the upper end of the base ventilation member 2, i.e., near the top of the roof 40, via, for example, a moisture-proofing material 57. The top plate portion 26 of the ridge wrapping member 4 is also supported on the bottom end 15 of the base ventilation member 2, i.e., on the eaves side (not shown), via the support portion 20 of the panel door ventilation member 3.

[0063] A hanging portion 27 is formed at the lower end of the top plate portion 26, bending downward from the top plate portion 26. The hanging portion 27 is formed so as to be approximately parallel to the lower end side raised surface portion 14 of the base ventilation member 2, and is fixed to the lower end side raised surface portion 14 with fixing screws 61 so as to sandwich the mounting surface portion 19 of the panel door ventilation member 3 therebetween.

[0064] The fixing screws 61 may be screws with waterproof packing, which can prevent rainwater from entering the ventilation passage 5 through the screw holes of the fixing screws 61, etc.

[0065] At the lower end of the hanging portion 27, a hanging inclined portion 28 is formed, which is bent and inclined from the hanging portion 27 toward the eaves, and at the tip of the hanging inclined portion 28, a folded piece portion 29 is formed which is folded downward.

[0066] The ridge wrapping member 4 formed in this manner is easy to install and covers the entire area of ​​the base ventilation member 2 and the panel door ventilation member 3 from above. The fixing screws 61 are tightened only from the hanging portion 27, fastening the ridge wrapping member 4 to the rising surface portion 14 on the lower end side of the base ventilation member 2. With this configuration, a ventilated ridge 1 with excellent waterproofing and insect resistance can be obtained, as the ridge wrapping member 4 can completely prevent the intrusion of rainwater and insects from above the base ventilation member 2 and ridge wrapping member 4.

[0067] Fig. 5 is a front view showing the schematic configuration of the ventilation ridge 1. As shown in Fig. 5, in a vertical or tiled roof, convex portions 58 are formed at the joints of multiple roofing materials 42. A gap is formed between the ridge wrapping member 4 and the roofing material 42 at the flat portions 59 between the convex portions 58. The face door ventilation member 3 is provided so as to substantially fill the gap between the ridge wrapping member 4 and the roofing material 42. Specifically, multiple face door ventilation members 3 are provided so as to correspond to the flat portions 59 of the roofing material 42, except for the convex portions 58 where the roofing materials 42 of the vertical or tiled roof are overlapped or joined by separate members.

[0068] Here, the fixing screws 61 may be installed to fix the base ventilation member 2 (see Figure 1) and the ridge wrapping member 4 at a position where no face door ventilation member 3 is installed when viewed from the front, i.e., between adjacent face door ventilation members 3 of multiple face door ventilation members 3. This configuration makes the installation and fixing work easier and improves work efficiency.

[0069] In addition, the fixing screw 61 may be tightened at the position where the face door ventilation member 3 is installed, by sandwiching the face door ventilation member 3 between the base ventilation member 2 and the ridge wrapping member 4, and fixing the base ventilation member 2, face door ventilation member 3, and ridge wrapping member 4.

[0070] The ventilation ridge 1 of this embodiment described above with reference to Figures 1 to 5 allows for easy installation work, and can prevent the intrusion of wind and rain and insects, etc., in roofs with flat roofing or tiled roofing, for example, while providing high-performance ventilation.

[0071] Specifically, the entire upper area of ​​the base ventilation member 2 and the panel door ventilation member 3 is covered by the ridge wrapping member 4, so rainwater cannot seep into the ventilation passage 5 from above the base ventilation member 2 and the ridge wrapping member 4, and insects, birds, etc. cannot enter.

[0072] Furthermore, a surface door ventilation member 3 is provided between the lower end of the ridge wrapping member 4, which serves as the entrance and exit for air, and the roof material 42, and the surface door ventilation member 3 prevents the intrusion of wind and rain from the outside, as well as the intrusion of insects, etc.

[0073] Furthermore, the ventilation passage 5 is formed so that air flows into the space above the base ventilation member 2, i.e., the space between the base ventilation member 2 and the ridge wrapping member 4. The lower end of the ventilation passage 5 is connected to the space below the base ventilation member 2, i.e., the space between the base ventilation member 2 and the roof material 42, via the lower end vent hole 7. Therefore, even if rainwater enters the space below the base ventilation member 2 through the vent holes 8 of the panel door ventilation member 3 due to strong winds during rainfall, the entered rainwater is unlikely to pass through the vent hole 7. In other words, rainwater is unlikely to enter the ventilation passage 5 formed above the base ventilation member 2.

[0074] In addition, ventilation passage 5 is formed with ventilation hole 6, which is an upper end ventilation hole, ventilation hole 7, which is a lower end ventilation hole, and ventilation hole 8, which is a face door ventilation hole.By appropriately setting the sizes of ventilation hole 6, ventilation hole 7, and ventilation hole 8, it is possible to prevent the entry of insects, birds, etc. while ensuring a ventilation passage.

[0075] The above-described configuration also provides a ventilation ridge 1 with excellent workability. Specifically, the base ventilation member 2 is fixed to the upper surface of the sheathing board 43 via the base material 45, and the panel ventilation member 3 is engaged with the lower end of the base ventilation member 2, allowing workers to efficiently construct the ventilation ridge 1.

[0076] Next, ventilation towers 101, 201, 301, 401, and 501 will be described in detail as modified examples of the embodiment with reference to Figures 6 to 11. Note that components that have the same or similar functions and effects as those of the already described embodiment will be assigned the same reference numerals, and their description will be omitted.

[0077] Fig. 6 is a cross-sectional view showing a schematic configuration of a ventilation ridge 101 according to another embodiment of the present invention. Referring to Fig. 6, the ventilation ridge 101 may be installed on, for example, a flat roof. Specifically, the roof 140 to which the ventilation ridge 101 is attached is a flat roof, i.e., a horizontal roof such as a stepped roof, a linear roof, a diamond roof, etc., and the roofing material 48 used for the roof 140 is for a flat roof, i.e., a horizontal roof such as a stepped roof, a linear roof, a diamond roof, etc.

[0078] 7(A) and (B) are diagrams showing an outline of the face door ventilation member 103 that constitutes the ventilation ridge 101, with FIG. 7(A) being a side cross-sectional view and FIG. 7(B) being a front view. Referring to FIG. 6, FIG. 7(A) and FIG. 7(B), the face door portion 18 of the face door ventilation member 103 is formed with an inclined surface portion 22 that slopes along the hanging inclined portion 28 of the ridge wrapping member 4, and a tip face door portion 23 that is bent downward from the tip of the inclined surface portion 22 and further bent toward the upper end side of the base ventilation member 2.

[0079] The vent hole 8, which is a face door vent hole, is formed in the front face door portion 23. Specifically, the vent hole 8 may be formed in a bent portion of the front face door portion 23 that is bent in a roughly V-shape in side view. Although the face door ventilation member 103 may be in contact with the roof material 48, it is preferable that it not be in contact with the roof material 48. That is, a gap of, for example, 1 to 10 mm, preferably 5 to 8 mm, is provided between the lower end of the tip face door portion 23 of the face door ventilation member 103 and the roof material 48. By providing a gap between the face door ventilation member 103 and the roof material 48 without bringing the face door ventilation member 103 and the roof material 48 into contact with each other in this way, deterioration of the ventilation ridge 101 and the roof material 48 due to electrolytic corrosion, etc. can be prevented.

[0080] The length of the face door ventilation member 103 in the longitudinal direction, i.e., the extension direction of the ridge, may be approximately equal to the length of the base ventilation member 2. In other words, a configuration in which one face door ventilation member 103 is attached to one base ventilation member 2 may be used.

[0081] With this configuration, it is possible to efficiently construct a high-performance ventilation ridge 101 that can prevent wind and rain from entering a flat roof. This allows for high-performance ventilation with less intrusion of rainwater and insects on flat roofs, tile roofs, etc.

[0082] Fig. 8 is a cross-sectional view showing a schematic configuration of a ventilation ridge 201 according to yet another embodiment of the present invention. As shown in Fig. 8, the ventilation ridge 201 may be installed on a roof 240 that is, for example, a single-slope standing flat roof or a single-slope tiled roof.

[0083] The roof 240 is a single-gable shingle roof. One side of the top forms a roof surface that slopes diagonally downward, and the other side of the top forms an exterior wall surface formed by a substantially vertical exterior wall 49. The exterior wall 49 is fixed to a single-gable ridge beam 52 via exterior wall base furring strips 50, exterior wall underlayment 53, bearing surface materials 51, and other wall components not shown.

[0084] Although not shown in the drawings, the roof 240 may have an eaves portion formed on the top side, in which case the exterior wall 49 may be a gable board or a gable cover, etc. In other words, the exterior wall 49 as a gable board or the like may form a gable outer surface on the other side of the top.

[0085] The base ventilation member 202 may have the ventilation holes 6 formed in the bottom surface 10. That is, the ventilation holes 6 as upper end side ventilation holes may be formed in the bottom surface 10 of the base ventilation member 202 on the upper end side than the base material 45. This forms an air passage for ventilation that is suitable for a shed roof.

[0086] The ridge wrapping member 204 is also designed for a gable roof. Specifically, the ridge wrapping member 204 is formed in a shape that covers the base ventilation member 202 and the panel door ventilation member 3 from above on the sloped roof surface side of the roof 240, similar to the ridge wrapping member 4 (see Figure 1), and a gable hanging surface portion 30 is formed on the exterior wall 49 side below the top of the roof.

[0087] That is, at the top of the roof 240, the top plate portion 26 of the ridge wrapping member 204 is bent downward to form a substantially vertical sloped hanging surface portion 30 that fits along the exterior wall 49. Note that the lower end of the sloped hanging surface portion 30 may be formed with a folded piece portion 31 that is folded back near the edge to obtain suitable strength.

[0088] The ridge wrapping member 204 is attached so as to cover the base ventilation member 202 and the panel door ventilation member 3 from above. The hanging portion 27 of the ridge wrapping member 204 is fixed to the base ventilation member 202 with fixing screws 61, and the vicinity of the lower end of the downspout hanging surface portion 30 is fixed to the exterior wall base furring strip 50 or sheathing board 43 or the like via the exterior wall 49 or the like with fixing screws 62.

[0089] The fixing screw 62 may be a screw with a waterproof packing, similar to the fixing screw 61. This makes it possible to prevent rainwater from entering the interior of the exterior wall 49, the exterior wall base furring strip 50, etc. through the screw hole of the fixing screw 62, etc.

[0090] Furthermore, a waterproof member 65 may be provided between the downdraft hanging surface portion 30 and the exterior wall 49, i.e., on the contact surface between the downdraft hanging surface portion 30 and the exterior wall 49. The waterproof member 65 is formed, for example, by waterproof caulking. With this configuration, it is possible to prevent rainwater and the like from seeping in from the outdoors below the downdraft hanging surface portion 30 to the indoors.

[0091] In the ventilated ridge 201, an L-shaped throw-out member 56 may be provided at the ventilation opening 41, with one surface portion sandwiched and supported between the sheathing board 43 and the base material 45, and the other surface portion bent upward and extending to be covered by the sloped hanging surface portion 30 of the ridge wrapping member 204. The other surface portion covered by the sloped hanging surface portion 30 of the L-shaped throw-out member 56 may be supported by abutting against the sloped hanging surface portion 30 via a moisture-proofing material 57. The sloped hanging surface portion 30 of the ridge wrapping member 204 may be screwed to the L-shaped throw-out member 56 with fixing screws or the like (not shown).

[0092] The L-shaped throw-out member 56 may be formed with ventilation holes 9 as throw-out member ventilation holes through which ventilation air can flow through the ventilation openings 41. This allows for high-performance ventilation with excellent drainage, for example, on a shed roof such as the roof 240.

[0093] A gap through which ventilation air can flow may be provided between the upper end of the exterior wall 49 and the sheathing board 43. The distance between the upper end of the exterior wall 49 and the sheathing board 43 is, for example, 5 to 20 mm, and preferably 10 to 15 mm.

[0094] A gap through which ventilation air can pass may be provided between the upper end of the load-bearing face material 51 and the sheathing subfloor 43. The distance between the upper end of the load-bearing face material 51 and the sheathing subfloor 43 is, for example, 5 to 20 mm, and preferably 10 to 15 mm. In a configuration in which the upper end of the load-bearing face material 51 contacts the sheathing subfloor 43, openings such as holes through which ventilation air can pass may be formed near the upper end of the load-bearing face material 51.

[0095] In this way, by providing gaps or the like that serve as ventilation passages in the upper part of the exterior wall 49 and the upper part of the bearing surface material 51, it is possible to ventilate both the intra-wall space between the exterior wall 49 and the exterior wall underlayment 53, and the indoor space inside the bearing surface material 51, with the outdoors. Therefore, the ventilated ridge 201 can exhibit excellent ventilation performance.

[0096] Fig. 9 is a cross-sectional view showing the schematic configuration of a ventilation ridge 301 according to yet another embodiment of the present invention. Referring to Fig. 9, the ventilation ridge 301 may be installed on, for example, a single-slope flat roof. The roof 340 is a single-slope flat roof using roofing material 48 for flat roofs. The ventilation ridge 301 may utilize the already-described side door ventilation member 103 for a side door flat roof.

[0097] Fig. 10 is a cross-sectional view showing the schematic configuration of a ventilation ridge 401 according to yet another embodiment of the present invention. As shown in Fig. 10, the ventilation ridge 401 may be provided, for example, as a rainproofing for a roof shed. The roof 440 is a roof shed using roofing materials 42 for a flat roof or a tile roof, and the upper ends of the rafters 44 are supported by rafter hangers 55.

[0098] The ridge wrapping member 404 is formed for use as a roof shed. Specifically, the ridge wrapping member 404 is configured to cover the base ventilation member 2 and the panel door ventilation member 3 from above on the sloped roof surface side of the roof 440, similar to the ridge wrapping member 4 (see Figure 1), and has an exterior wall flashing 32 formed on the exterior wall 49 side.

[0099] The exterior wall flashing portion 32 is bent so as to extend vertically upward from the upper edge of the top plate portion 26 along the load-bearing surface material 54. A folded piece 33 may be formed at the upper end of the exterior wall flashing portion 32 to obtain suitable strength.

[0100] The exterior wall flashing 32 of the ridge wrapping member 404 is fixed to a pillar or the like (not shown) via a load-bearing surface material 54 using fixing screws 63, and an exterior wall 49 is provided on the outdoor side of the exterior wall flashing 32 via an exterior wall underlayment 53, an exterior wall base furring strip 50 and other exterior wall components (not shown).

[0101] Here, tape 64 to prevent air leakage is provided near the upper end of exterior wall flashing 32, i.e., near folded piece 33. Specifically, tape 64 is attached to exterior wall flashing 32 and load-bearing surface material 54 from the exterior side so as to close the gap between the upper end of exterior wall flashing 32 and load-bearing surface material 54. Although not shown in the figures, tape 64 may also be attached so as to be sandwiched between exterior wall flashing 32 and load-bearing surface material 54.

[0102] Furthermore, although not shown, the L-shaped throw-out member 46 may have a configuration in which an air vent 9 is formed as a throw-out member air hole, like the L-shaped throw-out member 56 shown in Fig. 8. The air vent 9 may be formed in the surface portion extending upward of the L-shaped throw-out member 46. The air vent 9 may be formed in both the surface portion sandwiched between the sheathing board 43 and the base material 45 and the surface portion extending upward. The vicinity of the upper end of the surface portion extending upward of the L-shaped throw-out member 46 may be configured to be sandwiched between the exterior wall flashing 32 and the load-bearing surface material 54, more specifically, between the dew-proofing material 57 and the load-bearing surface material 54.

[0103] This configuration of the L-shaped throw-out member 46 makes it possible to prevent indoor warm air that flows in from below the ventilation opening 41 from flowing from the top of the ventilation opening 41 into the indoor space on the bearing surface member 54 side, i.e., inside the wall, into the rooms above and below, in the attic, under the floor of the upper floor, etc., even in roof structures where there is no bearing surface member 54 near the ventilation opening 41. Therefore, it is possible to form an air passage suitable for ventilation according to the building structure, enabling high-performance ventilation.

[0104] In this way, even when the ventilation ridge 401 is used as a rainproofing for the roof, it can form a high-performance ventilation passage that can prevent the intrusion of wind, rain, insects, etc.

[0105] Fig. 11 is a cross-sectional view showing the schematic configuration of a ventilation ridge 501 according to yet another embodiment of the present invention. As shown in Fig. 11, the ventilation ridge 501 may be used, for example, for a roof 540, which is a shed for a flat roof, using roofing material 48 for a flat roof. Furthermore, the L-shaped temporary member 46 may have a form similar to that of the L-shaped temporary member 56 shown in Fig. 9.

[0106] As explained above, according to the present invention, ventilation towers 1, 101, 201, 301, 401, 501, etc. can be obtained which are easy to install, have high-performance ventilation capacity, and can prevent the intrusion of wind and rain and insects, birds, etc.

[0107] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. [Explanation of symbols]

[0108] 1, 101, 201, 301, 401, 501: Ventilation building 2, 202: Base ventilation member 3, 103: Ventilation member 4, 204, 404: Ridge wrapping material 5: Ventilation passage 6: Ventilation hole 7: Ventilation hole 8: Ventilation hole 9: Ventilation hole 10: Bottom part 11: Upper end raised surface 12: Top edge 13: Reinforcement piece 14: Lower end raised surface 15: Top edge of bottom side 16: Locking piece 17: Edge 18: Mentobe 19: Mounting surface 20: Support part 21: Locking part 22: Inclined surface part 23: Tip surface door 24: Folded piece 26: Top plate 27: Drooping part 28: Drooping slope part 29: Folded piece 30: Drooping surface part 31: Folded piece 32: Exterior wall rainproof section 33: Folded piece 40, 140, 240, 340, 440, 540: Roof 41: Ventilation opening 42: Roofing materials 43: Noji board 44: Rafter 45: Base material 46: L-shaped throw-away piece 47: Underlayment 48: Roofing materials 49: Exterior wall 50: Exterior wall base lining 51: Load-bearing surface material 52: Single-ply ridgepole 53: Exterior wall underlayment 54: Load-bearing surface material 55: Rafter hanging member 56: L-shaped throw-away piece 57: Anti-dew material 58: Convex part 59: Flat part 60: Fixing screw 61: Fixing screw 62: Fixing screw 63: Fixing screw 64: Tape material 65: Waterproofing materials

Claims

1. A ventilation tower installed on the roof of a building, A base ventilation member is fixed to the upper surface of the sheathing board via a base material extending in a direction along the ridge, and its lower end side is provided above the roof material; A face door ventilation member that is engaged with the lower end of the base ventilation member and is provided in the gap between the roof material and the base ventilation member; a ridge wrapping member that is provided above the base ventilation member and the face door ventilation member and covers the base ventilation member and the face door ventilation member; A ventilation passage is formed between the base ventilation member and the ridge wrapping member, the upper end of which is connected to the indoors through a ventilation opening formed in the roof, and through which ventilation air flows, A lower end vent hole is formed on the lower end side of the base ventilation member, the lower end vent hole being connected to the ventilation passage and the space formed between the base ventilation member and the roof material, A ventilation ridge characterized in that the face door ventilation member has a face door vent hole formed in it that leads from the space between the base ventilation member and the roof material to the outdoors.

2. The base ventilation member is A bottom surface portion fixed to the sheathing board via the base material and extending parallel to the sheathing board; a lower end side rising surface portion bent upward from the lower end of the bottom surface portion; a lower end top end portion bent from the tip of the lower end side rising surface portion toward the upper end side of the base ventilation member and supporting the ridge wrapping member; a locking piece bent downward from the tip of the top end portion on the lower end side, The face door ventilation member is a face portion extending downward along the lower end side raised face portion; A support portion bent from the upper end of the face door portion to the lower end side top end portion; a locking portion that is bent downward from a tip of the support portion along the locking piece portion and folded back so that its tip is hooked onto the tip of the locking piece portion, The ridge wrapping member is a top plate portion extending parallel to the bottom surface portion and supported on the lower end top end portion via the support portion; a hanging portion bent downward from the lower end of the top plate portion, The ventilation ridge described in claim 1, characterized in that the upper part of the face door ventilation member is sandwiched between the lower end side raised surface portion and the hanging portion, and the support portion is sandwiched between the lower end side top end portion and the top plate portion and supported by the base ventilation member.

3. the lower end vent hole is formed in the bottom surface portion, The ventilation tower according to claim 2, characterized in that the face door vent is formed in the face door portion below the lower end side raised surface portion.

4. The ridge wrapping member is A hanging inclined portion bent from the lower end of the hanging portion and inclined toward the eaves, The face door portion of the face door ventilation member is formed with an inclined surface portion that slopes along the hanging inclined portion, and a tip face door portion that is bent downward from the tip of the inclined surface portion and further bent toward the upper end side of the base ventilation member, The ventilation tower according to claim 3, characterized in that the face door vent is formed in the tip face door portion.

5. The base ventilation member has an upper end side provided above the ventilation opening, A ventilation tower as described in any one of claims 1 to 4, characterized in that an upper end ventilation hole connecting the ventilation opening to the ventilation passage is formed on the upper end side of the base ventilation member.

6. The ventilation opening is provided with an L-shaped throw-out member having one surface supported between the sheathing board and the base material, A ventilation tower described in any one of claims 1 to 4, characterized in that the L-shaped throw-out member has a throw-out member ventilation hole formed therein through which ventilation air flowing through the ventilation opening can pass.

7. The ventilation building according to any one of claims 1 to 3, characterized in that the roof is a flat roof or a tile roof.

8. The ventilation building according to any one of claims 1 to 4, characterized in that the roof is a flat roof.

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