JP7776149B2 - Ventilation structure - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act On November 11, 2020, Hauseco Co., Ltd. unveiled a ventilated vertical structure on page A-34 of the 2021 Hauseco Co., Ltd. catalog.

The present invention relates to a ventilation stand structure and a ventilation structure, and in particular to a ventilation stand structure and a ventilation structure used for roof ventilation.

Conventionally, metal sheets formed into various shapes have been used as roofing materials for houses and other structures. For example, Patent Document 1 uses a concave-convex roofing material, and also discloses a ventilation structure for that roof structure.

Tatehira-buki is also a well-known type of metal roof. With tatehira-buki, roofing is laid on top of sheathing boards, and then a tatehira roof made of metal sheet material is laid on top of that.

Tatehira-buki roof structures generally have advantages such as being light, requiring short construction times, and being inexpensive.

JP 2013-174111 A

However, until now, no specific configurations have been proposed for natural ventilation in vertical-roof roof structures.

The present invention was made to solve the above-mentioned problems, and aims to provide a ventilated vertical roof structure that enables natural ventilation without compromising the advantages of vertical roofing.

To achieve the above object, the invention described in claim 1 is a ventilation stand structure to be installed on the roof of a house, comprising a stand made of metal plate, with connecting portions formed at both ends in the short direction to connect adjacent stand, and a convex portion formed between the connecting portions at both ends that continues from the eaves end to the ridge end, a ventilation stand installed above the roof underlayment, and which forms a first ventilation passage that connects from the eaves to the ridge between the upper surface of the roof underlayment and the convex portion, and a ventilation ridge configured to cover the ridge end of the ventilation stand and which forms a second ventilation passage that connects from the first ventilation passage to the outside.

When configured in this way, a ventilation channel is formed on the tatehira-buki roof from the eaves to the ridge.

The invention described in claim 2, in the configuration of the invention described in claim 1, further comprises an eaves ventilation element attached to the eaves portion of the roof underlayment, the convex portion of the ventilation stand being formed a predetermined distance inward from the tip of the eaves, and the ventilation stand being installed so that it protrudes outward from the roof underlayment toward the eaves, forming an opening continuous with the first ventilation passage below the protruding convex portion, the eaves ventilation element being attached between the ventilation stand and the roof underlayment and having a mounting portion with a ventilation hole formed therein that communicates with the opening, a hanging portion extending downward from the mounting portion and formed outward from the ventilation hole, and a bottom portion extending diagonally upward and inward from the lower end of the hanging portion with a first ventilation portion consisting of multiple openings.

When configured in this way, the entrance to the ventilation channel is formed below the ventilation stand.

The invention described in claim 3, in the configuration of the invention described in claim 1, further comprises an eaves ventilation element attached to the eaves portion of the roof underlayment, the convex portion of the ventilation stand being formed a predetermined distance inward from the tip of the eaves, and the ventilation stand being installed so that it protrudes outward from the roof underlayment toward the eaves, forming an opening below the protruding convex portion that is continuous with the first ventilation passage, the eaves ventilation element being attached between the ventilation stand and the roof underlayment and comprising: an attachment portion having a ventilation hole that communicates with the opening; an eaves arabesque that extends downward from the attachment portion and is formed outward from the ventilation hole relative to the building; and an eaves water flashing material below the attachment portion of the eaves arabesque that has a second ventilation portion that communicates with the ventilation hole.

When configured in this way, the entrance to the ventilation channel is formed below the ventilation stand.

The invention described in claim 4 is the same as the invention described in claim 1, except that the convex portion of the ventilation stand extends continuously to the tip of the eaves-side end, forming an opening at the tip, and further includes a decorative cover that is fixed above the eaves-side end of the ventilation stand and is arranged to cover the opening while forming a gap between it and the opening.

This configuration makes it difficult to see the openings in the ventilation stand from the outside.

The invention of claim 5, in the configuration of the invention of claim 1, further comprises a standpipe that is adjacent to and connected to the ventilation standpipe on the eaves end side of the ventilation standpipe and installed above the roof underlayment at the eaves end of the house, and a eaves water flashing material that is installed to cover a climbing tree installed above the roof underlayment at the eaves end of the house. The eaves water flashing material has an outer covering portion that covers the outer surface of the climbing tree, an upper covering portion that continues from the outer covering portion and covers the top surface of the climbing tree, and an inner covering portion that continues from the upper covering portion and covers the inside of the climbing tree. The standpipe is bent upward along the climbing tree at the end on the eaves end side and has a bent portion that is inserted between the climbing tree and the inner covering portion.

When configured in this way, the ends of the ventilation stand are covered by the eaves flashing material.

The invention of claim 6, in the configuration of the invention of claim 1, further comprises a shed joint formed by the roof underlayment and exterior wall underlayment of a house, a shed joint ventilation stand connected adjacent to the ventilation stand on the exterior wall underlayment side of the ventilation stand and installed above the roof underlayment, and a water flashing material attached to cover the connection from the exterior wall underlayment to the connection between the ventilation stand and the shed joint, and the shed joint ventilation stand has a step formed continuously from the eaves end to the ridge end on the exterior wall underlayment side, and a third ventilation channel connecting from the eaves to the ridge is formed by the upper surface of the roof underlayment, the step, and the exterior wall underlayment, and in the ventilation ridge, the third ventilation channel is connected to the second ventilation channel.

By configuring it in this way, a ventilation path is formed from the eaves to the ridge, even where the eaves meet.

The invention of claim 7, in the configuration of the invention of claim 1, further comprises an eaves end ventilation stand that is adjacent to and connected to the ventilation stand and installed above the roof underlayment at the eaves end of the house, and an eaves arabesque that covers the outside of the eaves end of the house, and the eaves end ventilation stand has a step that is formed continuously from the eaves side end to the ridge side end at the eaves end, and a fourth ventilation channel that connects from the eaves to the ridge is formed by the eaves arabesque, the step, and the upper surface of the roof underlayment, and at the ventilation ridge, the third ventilation channel is connected to the second ventilation channel.

By configuring it in this way, an air passage is created from the eaves to the ridge, even at the edge of the eaves.

The invention described in claim 8, in the configuration of the invention described in claim 1, further comprises an eaves ventilation member attached to the eaves portion of the roof underlayment, the convex portion of the ventilation stand being formed a predetermined distance inward from the tip of the eaves, and the ventilation stand being installed so that it protrudes outward from the roof underlayment toward the eaves, forming an opening below the protruding convex portion that is continuous with the first ventilation passage, the eaves ventilation member being attached between the ventilation stand and the roof underlayment and having an attachment portion formed with a ventilation hole that communicates with the opening, and an eaves portion formed below the attachment portion and having a first ventilation portion consisting of an opening open to the outside.

When configured in this way, the entrance to the ventilation channel is formed below the ventilation stand.

The invention described in claim 9, in addition to the configuration of the invention described in claim 1, further comprises a shed joint ventilation stand that is adjacent to and connected to the ventilation stand on the exterior wall substrate side of the ventilation stand at the shed joint formed by the roof substrate and exterior wall substrate of the house, and is installed above the roof substrate, and a flashing that is installed to cover the area from the exterior wall substrate to above the shed joint ventilation stand.

This configuration simplifies construction at locations where the eaves meet.

The invention described in claim 10 is a ventilation stand structure to be installed on the roof of a house, which is made of metal plates and has connecting portions formed at both ends of its short side to connect adjacent stand members, and a convex portion formed between the connecting portions at both ends that continues from the eaves end to the above-water end. The ventilation stand is installed above the roof underlayment and forms a first ventilation passage that connects from the eaves to the above-water end between the upper surface of the roof underlayment and the convex portion; and a ventilation device installed at the above-water end of the ventilation stand and forms a second ventilation passage that connects the first ventilation passage to the outside.

This configuration creates an air passage from the eaves to the ventilation device.

The invention described in claim 11 is the configuration of the invention described in claim 10, in which the overwater end is located at the girder-direction joint between the wall and roof of the house, and the ventilation device is a ventilation flashing configured to cover the girder-direction joint side end of the ventilation stand.

This configuration allows ventilation at the girder joint.

The invention described in claim 12 is the configuration of the invention described in claim 10, in which a parapet section provided at the top of the roof of the house is located at the end on the water side, and the ventilation device is a parapet ventilation system provided at the parapet section end of the ventilation stand.

This configuration results in a structure that provides ventilation at the parapet section at the top of the house's roof.

The invention described in claim 13 is a ventilation structure for a parapet installed at the top of a house roof, comprising: rafters extending from the eaves to the roof top, supporting the roof underlayment and forming an attic space together with the roof underlayment; rafter supports installed near the roof top, extending perpendicular to the rafters and supporting the rafters; and a parapet ventilation system installed at the top of the roof. The structure includes a skeleton having an internal space connected to the attic space through the spaces between the rafters; a waist wall ventilation member installed on the side of the skeleton and communicating with the outside; exterior wall materials installed outside the skeleton via furring strips; a capping cover installed at the top of the skeleton; and a ventilation member installed in the space formed by the upper part of the exterior wall materials, below the capping cover, and the upper part of the skeleton, which ventilates air from the ventilation layer formed through the furring strips to the outside.

This configuration allows ventilation from the attic space to the outside via a parapet ventilation system installed at the top of the roof.

As explained above, the invention described in claim 1 creates an air passage from the eaves to the ridge of a tatehira-gaki roof, allowing ventilation throughout the entire tatehira-gaki roof.

In addition to the effects of the invention described in claim 1, the invention described in claim 2 has an air duct entrance formed below the ventilation stand, so there are no openings due to the air duct at the eaves, and rainwater and other elements cannot get in.

In addition to the effects of the invention described in claim 1, the invention described in claim 3 has an air passage entrance formed below the ventilation stand, so there are no openings due to the air passage at the eaves, and rainwater and other elements cannot get in.

In addition to the effects of the invention described in claim 1, the invention described in claim 4 is preferable in terms of appearance, as the opening of the ventilation stand is difficult to see from the outside.

In addition to the effects of the invention described in claim 1, the invention described in claim 5 enhances waterproofing by covering the ends of the ventilation stand with the eaves water-repellent material.

In addition to the effects of the invention described in claim 1, the invention described in claim 6 also creates an air passage from the eaves to the ridge where the eaves meet, improving ventilation performance at the eaves.

In addition to the effects of the invention described in claim 1, the invention described in claim 7 also creates an air passage from the eaves to the ridge at the edge of the eaves, improving ventilation performance at the edge of the eaves.

In addition to the effects of the invention described in claim 1, the invention described in claim 8 has an air duct entrance formed below the ventilation stand, so there are no openings due to the air duct at the eaves, and rainwater and other elements cannot get in.

The invention described in claim 9 not only achieves the effects of the invention described in claim 1, but also simplifies construction at eaves joint locations, allowing for efficient waterproofing.

The invention described in claim 10 creates an air passage from the eaves to the ventilation device, allowing ventilation throughout the entire vertical roof.

In addition to the effects of the invention described in claim 10, the invention described in claim 11 provides a structure that provides ventilation at the girder-direction joint, thereby improving ventilation performance at the girder-direction joint.

The invention described in claim 12 achieves the same effect as the invention described in claim 10, but also provides a structure for ventilation in the parapet section provided at the top of the roof of the house, thereby improving ventilation performance at the top of the roof of the house.

The invention described in claim 13 provides a structure that allows ventilation from the attic space to the outside via a parapet ventilation system installed at the top of the roof, thereby improving the ventilation performance of a single-slope roof with a parapet portion.

1 is a schematic perspective view of a house equipped with a ventilation vertical structure according to a first embodiment of the present invention. 2 is a schematic enlarged cross-sectional view taken along the line II-II shown in FIG. 1. This is a short-side end view of the ventilation stand. FIG. 2 is a schematic perspective view showing the configuration of the eaves ventilation member. 2 is a schematic enlarged cross-sectional view taken along the line VV shown in FIG. 1. FIG. 2 is a schematic enlarged end view of the VI-VI line shown in FIG. 1. 2 is a schematic enlarged end view of line VII-VII shown in FIG. 1. 10 is a schematic enlarged cross-sectional view showing a ventilation vertical-flat structure according to a second embodiment of the present invention, and corresponds to FIG. 2. [0023]FIG. FIG. 5 is an exploded schematic perspective view of the eaves ventilation member, corresponding to FIG. 4 . 10 is a schematic enlarged cross-sectional view showing a ventilation vertical-flat structure according to a third embodiment of the present invention, and corresponds to FIG. 8. [0033]FIG. FIG. 10 is a schematic enlarged end view showing a ventilation vertical structure according to a fourth embodiment of the present invention, and corresponds to FIG. 6 . FIG. 10 is a schematic enlarged end view showing a ventilation vertical structure according to a fifth embodiment of the present invention. FIG. 10 is a schematic enlarged end view showing a ventilation vertical structure according to a sixth embodiment of the present invention, and corresponds to FIG. 7. FIG. 13 is a schematic enlarged end view showing a ventilation vertical structure according to a seventh embodiment of the present invention. FIG. 13 is a schematic enlarged end view showing a ventilation vertical structure according to an eighth embodiment of the present invention.

Figure 1 is a schematic perspective view of a house equipped with a ventilation stand structure according to a first embodiment of the present invention. Referring to the figure, the ventilation stand structure 1 installed on the roof of a house 10 includes a ventilation stand 2 made of a metal plate, a ventilation ridge 3 installed to cover the ridge end of the ventilation stand 2, an eaves ventilation member 4 attached to the eaves end of the ventilation stand 2 (the eaves of the house 10), a eaves flashing member 6 attached to the eaves of the house 10, and a gable wall flashing member 7 used for the eaves joint.

First, we will explain the installation of the ventilation stand structure 1 at the eaves. Figure 2 is a schematic enlarged cross-sectional view of the II-II line shown in Figure 1, Figure 3 is a short-side end view of the ventilation stand, and Figure 4 is a schematic perspective view showing the configuration of the eaves ventilation member.

Referring to these figures, the eaves end of the ventilation stand structure 1 is structured to include a ventilation stand 2 installed above the roof underlayment 100 and an eaves ventilation member 4 attached to the eaves portion of the roof underlayment 100.

The roof underlayment 100 is composed of sheathing boards 102 installed on rafters 103 and roofing 104 attached to the top surface of the sheathing boards 102. Note that in this document, when we say that a component is attached above the roof underlayment 100, this also includes the case where the component is attached between the roofing 104 and the sheathing boards 102.

The ventilation stand 2 has connecting portions 21a and 21b formed at both ends in the short direction, which connect to adjacent ventilation stand 2s on the left and right. Connecting portions 21a and 21b are formed in a vertical shape, with a narrow portion at the bottom. In other words, connecting portion 21a is an upper seam, and connecting portion 21b is a lower seam. When connecting portion 21a is fitted from above into connecting portion 21b of an adjacent ventilation stand 2, the narrow portions of the connecting portions fit together, connecting the ventilation stand 2s.

Furthermore, convex portions 22a and 22b are formed between connecting portions 21a and 21b. Convex portions 22a and 22b are formed as continuous convex portions from the eaves side end to the ridge side end (details will be described later). When ventilation stand 2 is installed above roof underlayment 100, the space surrounded by convex portions 22a and 22b and roof underlayment 100 becomes first ventilation passage 110. Furthermore, the width of intermediate portion 28 between convex portions 22a and 22b is set narrower than the width of convex portions 22a and 22b.

Furthermore, by installing the ventilation stand 2 so that it protrudes outward from the tip of the eaves (sheathing board 102), an opening 23 is formed below the protrusions 22a and 22b. The tip of the ventilation stand 2, located outward from the opening 23, is bent toward the house (inward) so as to wrap around the eaves ventilation member 4. Furthermore, sun vanes 26 are attached to the tip of the connecting parts 21a and 21b.

Next, we will explain the eaves ventilation member 4. The eaves ventilation member 4 is made by bending a long metal sheet. The eaves ventilation member 4 is attached between the roofing 104 and the sheathing board 102 and has a mounting portion 41 folded back at the tip of the eaves edge, a hanging portion 43 extending downward from the folded position of the mounting portion 41, and a bottom portion 44 extending from the lower end of the hanging portion 43 toward the exterior wall 101 of the house 10. The mounting portion 41 has ventilation holes 42 consisting of multiple openings between the hanging portion 43 and the tip of the sheathing board 102. The bottom portion 44 has an outer portion 46 extending diagonally upward from the lower end of the hanging portion 43, an inner portion 47 extending horizontally further inward from there, and an intermediate portion 48 formed between the outer portion 46 and the inner portion 47 and extending upward parallel to the hanging portion 43. The outer portion 46 has a first ventilation section 45 consisting of multiple openings. Above the first ventilation section 45, a ventilation material 121 that allows ventilation in the vertical direction is attached between the hanging section 43 and the middle section 48. A cushioning material 122 is attached between the middle section 48 and the outer wall 101 so as to rest on the top surface of the inner section 47, and the gap between the inner end of the inner section 47 and the outer wall 101 is sealed with a sealant 123.

When the eaves ventilation element 4 is attached to the house 10, the ventilation holes 42 are located directly below the opening 23, so they are in communication with the opening 23. Outside air flows from the first ventilation section 45 formed at the bottom 44 of the eaves ventilation element 4 through the ventilation material 121 and the ventilation holes 42, through the opening 23, and into the first ventilation path 110. Furthermore, the first ventilation path 110 is not visible from the outside, which is aesthetically pleasing.

Next, we will explain the ridge installation of the ventilation vertical structure 1. Figure 5 is a schematic enlarged cross-sectional view of the V-V line shown in Figure 1. Note that the ridge installation configuration of the ventilation vertical structure 1 shown in Figure 5 is symmetrical with respect to the center line C, so we will mainly refer to the left side of the center line C in the explanation, but the right side has the same configuration.

Referring to the same figure, the ventilation stand 2 is installed above the roof underlayment 100 so that the ridge-side tip of the ventilation stand 2 is located closer to the eaves than the ridge-side tip of the roof underlayment 100. The convex portion 22 is formed continuously to the eaves-side end. As a result, the first ventilation passage 110 is formed connecting the eaves-side end of the ventilation stand 2 to the ridge-side end of the ventilation stand 2. The ridge-side tip of the ventilation stand 2 is raised. A ventilation ridge 3 is attached to cover the ridge-side end of the ventilation stand 2. At the ridge-side end of the ventilation stand 2, a panel 38 is attached between adjacent connecting portions 21.

The configuration of the ventilation tower 3 is explained below.

A water return 35 is attached above the ridge end of the roof underlayment 100, and ventilation material 32 is attached on top of that. The ventilation material 32 consists of an arrangement of multiple truncated cone-shaped resin cones. Furthermore, a wooden underlayment 36 is attached on top of the ventilation material 32. A wooden underlayment 37 is attached on top of the wooden underlayment 36, spanning from the wooden underlayment 36 to the ridge end of the ventilation stand 2, and a ridge body 34 is attached on top of that to cover the wooden underlayment 37. The ridge body 34 has a ventilation opening 33 that leads to the outside. The ridge body 34 is installed spanning the ridge end of the ventilation stand 2, which are located to the left and right of the center line C in Figure 5.

The ventilation ridge 3 forms a second air passage 111 that runs from the ridge-side end of the first air passage 110 through the ventilation material 32 to the ventilation opening 33 in the ridge body 34 and connects to the outside. As a result, outside air entering from the eaves passes through the first air passage 110, then through the second air passage 111 and out through the ventilation opening 33 to the outside. The cones included in the ventilation material 32 support the structure, including the ridge body 34, which is installed above them, and because there is space between the cones, this is ideal for maintaining ventilation in the first air passage 110.

Next, we will explain how the ventilation vertical structure 1 is fitted to the eaves. Figure 6 is a schematic enlarged end view of the VI-VI line shown in Figure 1. Referring to this figure, at the eaves end of a house 10 equipped with the ventilation vertical structure 1, a climbing beam 106 is provided above the roof substrate 100, and a gable board 107 is provided below the roof substrate 100.

When installed at the eaves, the ventilation vertical board structure 1 is constructed with a vertical board 9 installed at the eaves end of the house 10, and vertical board water-repellent materials 6 and 67 attached to cover the eaves end of the house 10 from the climbing beam 106 to the gable board 107.

The stand 9, which is installed at the end of the eaves, comprises a groove plate 91, a connecting section 92 formed at one end (the connecting side) of the groove plate 91 in the short direction for connecting to an adjacent ventilation stand 2, and a bent section 94 formed at the other end (the eaves end) in the short direction and bent upward along the climbing bar 106. The connecting section 92 is a bottom seam similar to the connecting section 21b of the ventilation stand 2 described above. Waterproof tape 66 is stretched from the bent section 94 to cover the top surface of the climbing bar 106.

The following explains the eaves water-repellent material 6 and water-repellent material 67.

The eaves flashing material 6 comprises an outer covering portion 61 that covers the outer surface of the climbing beam 106 and extends below the underside of the roof underlayment 100 with its lower end folded inward; an upper covering portion 62 that continues from the upper end of the outer covering portion 61, covers the upper surface of the climbing beam 106, and further protrudes inward and folds back; and an inner covering portion 63 that continues from the upper covering portion 62 and covers the inside of the climbing beam 106. The protruding portion of the upper covering portion 62 serves as a flashing. The inner covering portion 63 consists of a hanging piece 64 that hangs down from the upper covering portion 62 along the climbing beam 106, and an inclined piece 65 that is connected to the lower end of the hanging piece 64 and bent away from the climbing beam 106. The inclined piece 65 serves as a flashing or dust cover.

The flashing material 67 is configured to contact the outer surface of the gable board 107, the underside of the roof underlayment 100, and the inner surface of the outer covering portion 61 of the eaves flashing material 6.

In this way, inserting the bent portion 94 of the vertical beam 9 between the climbing tree 106 and the waterproof tape 66 and inner covering portion 63 improves waterproofing performance.

Next, we will explain the fitting of the shed joint of the ventilation stand structure 1. Figure 7 is a schematic enlarged end view of the VII-VII line shown in Figure 1. Referring to this figure, in fitting the shed joint, the ventilation stand structure 1 is structured to include a ventilation stand (shed joint ventilation stand) 95 installed above the roof substrate at the shed joint, and a gable wall flashing material 7 installed from the exterior wall substrate 108 to cover the ventilation stand 95.

The ventilation stand 95 comprises a connecting portion 96 for connecting to an adjacent ventilation stand 2, a step portion 97 provided adjacent to the connecting portion 96, and a bent portion 98 extending upward along the exterior wall base 108 from the end of the step portion 97 facing the exterior wall base 108. The connecting portion 96 is a bottom seam similar to the connecting portion 21b of the ventilation stand 2 described above. The step portion 97 is formed continuously from the eaves end to the ridge end, similar to the convex portion 22 of the ventilation stand 2 described above. Waterproof tape 77 is stretched from the upper end of the bent portion 98 to the exterior wall base 108.

The space enclosed by the step 97 of the ventilation stand 95, the roof underlayment 100 (roofing 104), and the exterior wall underlayment 108 forms a third ventilation passage 113, similar to the first ventilation passage 110 described with reference to Figures 2 and 5. Furthermore, ventilation material 76 is attached between the step 97 of the ventilation stand 95 and the roof underlayment 100 (roofing 104). Similar to the ventilation material 32 described above, ventilation material 76 is an array of multiple truncated cone-shaped resin cones, attached continuously from the eaves end to the ridge end. The cones included in ventilation material 76 support the step 97, and since there is space between the cones, this is ideal for maintaining ventilation in the third ventilation passage 113.

The gable wall flashing material 7 is attached so as to cover the waterproof tape 77 of the exterior wall base 108 and the bent portion 98 of the ventilation stand 95.

The gable wall flashing material 7 is formed by bending a metal sheet and has a mounting portion 71 that is attached to the exterior wall base 108 with screws so as to cover the upper end of the waterproof tape 77 and the exterior wall base 108; a fixed portion 72 that extends from the lower end of the mounting portion 71 parallel to the sheathing board 102 so as to cover the upper part of the ventilation stand 95 and is fixed to the connecting portion 96 of the ventilation stand 95 using fixing brackets 80; and a hanging portion 73 that extends from the fixed portion 72 toward the roof base 100. The hanging portion 73 consists of a hanging piece 74 that hangs from the fixed portion 72 and an inclined piece 75 that is connected to the lower end of the hanging piece 74 and is bent in the opposite direction to the exterior wall base 108. The inclined piece 75 serves as a flashing or dust guard. Because exterior wall material 109 is attached to the outside of the exterior wall base 108, the screws that attach the mounting part 71 are covered by the exterior wall material 109, and the fixing bracket 80 is covered by the hanging part 73, so it is not visible from the outside and looks good.

The fixing bracket 80 that secures the fixing portion 72 will now be described. The fixing bracket 80 is composed of a bracket body 81 configured to surround the connecting portion 96, a bolt 82 for attaching the bracket body 81 to the ventilation stand 95, and a screw 83 for attaching the bracket body 81 to the gable wall flashing 7. The right end of the bracket body 81 in Figure 7 is inserted into the recess on the right side of the connecting portion 21, and the bolt 82 is attached to the inclined surface located on the left side of the connecting portion 96, and the bolt 82 is inserted into the recess on the left side of the connecting portion 96, thereby securing the bracket to the ventilation stand 95. The gable wall flashing 7 is placed on the bracket body 81 and the fixing portion 72 is attached to the bracket body 81 with the screw 83, thereby securing the gable wall flashing 7 to the ventilation stand 95. Multiple fixing brackets 80 are used, and the fixing portion 72 is secured at multiple locations along the length of the connecting portion 96.

As explained above, the ventilation vertical structure 1 can ventilate from the eaves to the ridge at the eaves joint by forming a third ventilation passage 113 from the eaves to the ridge. If a ventilation ridge 3 as described above is installed on the ridge side, the third ventilation passage 113 connects to the second ventilation passage 111, allowing ventilation from the ridge to the outside. This improves ventilation performance at the eaves joint.

Figure 8 is a schematic enlarged cross-sectional view showing a ventilation vertical structure according to a second embodiment of the present invention, corresponding to Figure 2, and Figure 9 is a schematic exploded perspective view of the eaves ventilation member, corresponding to Figure 4.

Note that this explanation is basically the same as the first embodiment, so we will focus on the differences.

Referring to these figures, the eaves end of the ventilated vertical flat structure according to this embodiment is provided with an eaves ventilation member 204 instead of an eaves ventilation member 4. The house to which the eaves ventilation member 204 is attached is formed so that the eaves end tips of the sheathing boards 102 and the eaves end tips of the rafters 103 are aligned.

The eaves ventilation member 204 includes an eaves arabesque 249 attached to the eaves and an eaves water-repellent material 244 attached directly below the eaves arabesque 249.

The eaves arabesque 249 has an attachment portion 241 and a hanging portion 243, but does not have a bottom portion 44. The attachment portion 241 has the same overall shape as the attachment portion 41, and has a rectangular ventilation hole 242 formed in the same area as the ventilation hole 42, with its long side corresponding in the longitudinal direction. The hanging portion 243 extends downward from the folded-back position of the attachment portion 241, and its lower end is bent inward.

The eaves flashing material 244 comprises a short piece 245 parallel to the hanging portion 243 of the eaves arabesque 249, a connecting piece 246 parallel to the mounting portion 241 and extending from the upper end of the short piece 245, and a long piece 247 extending downward from the inner end of the connecting piece 246. The connecting piece 246 comprises a second ventilation section 248 consisting of multiple openings formed continuously in the longitudinal direction. The long piece 247 is parallel to the short piece 245 and extends to the lower end of the rafter 103. The eaves flashing material 244 is attached so that the short piece 245 contacts the hanging portion 243 and the connecting piece 246 contacts the mounting portion 241. At this time, the ventilation holes 242 of the eaves arabesque 249 and the areas where the second ventilation sections 248 of the eaves flashing material 244 are formed overlap vertically.

When the eaves arabesque 249 and eaves water-repellent material 244 are attached to the house 10, the ventilation holes 242 of the eaves arabesque 249 are positioned directly below the opening 23, with the area where the second ventilation section 248 is formed located below. When the eaves arabesque 249 and eaves water-repellent material 244 are installed, the rectangular ventilation holes 242 of the eaves arabesque 249 include multiple openings of the second ventilation section 248 of the eaves water-repellent material 244, so one does not block the other even if precise alignment is not achieved. This ensures a path for outside air to enter the first air passage 110 from the opening 23 via the second ventilation section 248 and ventilation holes 242.

Figure 10 is a schematic enlarged end view showing a ventilation vertical structure according to a third embodiment of the present invention, and corresponds to Figure 8.

Note that this explanation is basically the same as the second embodiment, so we will focus on the differences.

Referring to this diagram, the ventilation stand structure 1 according to this embodiment does not include a component, such as the eaves ventilation member 204, that connects to the opening in the convex part of the ventilation stand and guides ventilation. Furthermore, in the house, the sheathing boards 102 are arranged to protrude outward from the rafters 103.

In the ventilation vertical structure 1, the convex portion 322 of the ventilation vertical member 302 extends continuously to the tip of the eaves-side end, forming an open portion 323 at this tip. The ventilation vertical structure 1 further includes a decorative cover 5 that is provided to cover this open portion 323.

The ventilation vertical structure 1 is described in more detail below.

An eaves arabesque 349 and an eaves water-repellent material 344 are attached to the lower part of the ventilation stand 302. The eaves arabesque 349 has an attachment part 341 that is parallel to the lower part of the ventilation stand 302, and a hanging part 343 that is connected to the inner end of the attachment part 341 and extends downward. The eaves water-repellent material 344 has an overall shape similar to the eaves water-repellent material 244 described above, and is equipped with a short piece 345, a connecting piece 346, and a long piece 347, but does not have the second ventilation part described above.

The eaves arabesque 349 is attached below the eaves end of the ventilation stand 302 so that the mounting portion 341 covers the underside of the protrusion 322 and the hanging portion 343 contacts the tip of the sheathing board 102.

In addition, ventilation material 326 is attached to the open portion 323. That is, ventilation material 326 is attached between the mounting portion 341 and the roofing 104 and the protruding portion 322. Ventilation material 326 consists of multiple cones made of resin, similar to ventilation material 76 described above.

The eaves flashing material 344 is attached so that the short piece 345 contacts the inner surface of the hanging part 343 and the connecting piece 346 contacts the underside of the sheathing board 102.

The decorative cover 5 is made by bending a long metal plate and is attached along the eaves across multiple adjacent ventilation stand 302. The decorative cover 5 comprises a flat portion 51, a cover portion 52 connected to the eaves-side tip of the flat portion 51 and extending diagonally downward outward to shield the open portion 323 while forming a gap between it and the cover portion 52, and an inclined portion 53 connected to the ridge-side tip of the flat portion 51. The inclined portion 53 is inclined from the flat portion 51 toward the upper surface of the convex portion 322 of the ventilation stand 302, and has a notch so that it does not come into contact with the connecting portion 321 of the ventilation stand 302.

The decorative cover 5 is attached to the ventilation stand 302 as follows: The fixing bracket 80 described above is attached to the connecting portion 321 of the ventilation stand 302, the flat portion 51 of the decorative cover 5 is placed above this fixing bracket 80, and the flat portion 51 is fixed to the fixing bracket 80 with screws or the like.

When configured as described above, outside air enters the first air passage 110 through the opening 323 formed at the tip of the eaves-side end and via the ventilation material 326.

By providing a decorative cover 5 at the eaves, the open area 323 is less visible, which not only looks good but also blocks wind and rain from outside.

Figure 11 is a schematic enlarged end view showing a ventilation vertical structure according to a fourth embodiment of the present invention, and corresponds to Figure 6.

Note that this explanation is basically the same as the first embodiment, so we will focus on the differences.

Referring to this diagram, the ventilation vertical structure 1 according to this embodiment is equipped with a ridge arabesque 406 rather than a ridge water-repellent material 6. Furthermore, in houses equipped with a ridge arabesque 406, climbing trees 106 are not provided at the ridge end.

The ventilation stand structure 1 is a structure comprising a ventilation stand (eaves end ventilation stand) 400 installed at the eaves end of the house 10, and an eaves arabesque 406 that covers the outside of the eaves end.

The eaves arabesque 406 comprises an upper covering portion 462 that covers the upper surface of the ventilation material 468 and protrudes outward from the eaves end and is folded back, and an outer covering portion 461 that is connected to the upper covering portion 462 and extends downward along the side of the sheathing board 102, extending below the underside of the sheathing board 102.

The ventilation stand 400 comprises, in order from one end (connecting side) in the short direction, a connecting portion 401 for connecting to an adjacent ventilation stand, a convex portion 402 provided adjacent to the connecting portion 401, an intermediate portion 403 provided adjacent to the convex portion 402, and a step portion 404 provided adjacent to the intermediate portion 403.

The connecting portion 401 is similar to the connecting portion 92 described above. The convex portion 402 and the middle portion 403 are similar to the convex portion and the middle portion of the ventilation stand 2 described above.

The step 404 is basically the same as the convex portion of the ventilation stand 2 described above, but below it, above the roof underlayment 100, a ventilation material 468 similar to the ventilation material 76 is installed from the eaves end to the ridge end. The eaves-side end of the step 404 also extends outward, forming a curve to wrap around the protruding portion of the upper covering portion 462 of the eaves arabesque 406.

With the above configuration, the space surrounded by the eaves arabesque 406, the roof underlayment 100, and the step 404 of the ventilation stand 400 forms a fourth ventilation path 114 that runs from the eaves end to the ridge end.

In addition, ventilation material 468 is installed from the eaves end to the ridge end, providing a structure that supports the step portion 404 without blocking the fourth ventilation passage 114.

As explained above, the ventilation vertical structure 1 can ventilate from the eaves to the ridge by forming the fourth ventilation passage 114 from the eaves to the ridge at the ridge end. If a ventilation ridge 3 as described above is installed on the ridge side, the fourth ventilation passage 114 connects to the second ventilation passage 111, allowing ventilation from the ridge to the outside. This improves ventilation performance at the eaves end.

In the first embodiment, the ventilation stand structure 1 is described as including a ventilation stand 2, a ventilation ridge 3, an eaves ventilation member 4, a gable wall flashing member 6, and a gable wall flashing member 7, but it is sufficient if it includes at least the ventilation stand 2 and the ventilation ridge 3.

Furthermore, in each of the above embodiments, the ventilation material 32 is provided between the water return 35 and the wooden base 36, but it may also be provided between the wooden base 36 and the wooden base 37.

Furthermore, in each of the above embodiments, the ventilation vertical structure 1 has been described as being installed on both shelved roofs, but this is not limited to this; it can also be installed on a single-shed roof. When installing on a single-shed roof, the ventilation ridge of the ventilation vertical structure 1 described using Figure 5 can be changed to one for a single-shed roof, and the structure on either side of the center line C can be adopted.

Furthermore, in each of the above embodiments, the ventilation stand has been described as having two convex portions formed, but the convex portions may be formed in one place or in three or more places. It is sufficient that a ventilation path is formed that runs from the eaves end to the ridge end.

Furthermore, in the first embodiment described above, the ventilation stand 2 does not have a protrusion, but it may be configured with a protrusion.

Furthermore, in the second embodiment described above, the ventilation hole 242 is rectangular and parallel to the eaves, and the second ventilation section 248 consists of multiple openings. However, the opposite configuration may be used, with a ventilation section consisting of multiple openings provided in the eaves arabesque 249, and a rectangular ventilation hole parallel to the eaves provided in the eaves water-repellent material 244. The ventilation hole and the opening of the ventilation section may also be of other shapes, as long as they are different shapes so that the ventilation hole is not blocked when the eaves arabesque 249 and the eaves water-repellent material 244 are attached to the house.

Furthermore, while the mounting portion 241 of the eaves arabesque 249 in the second embodiment described above is flat, it may also have a step. If the step is formed by bending it downward and upward in two locations parallel to the longitudinal direction, protruding from the sheathing board 102, the folded-back portion of the mounting portion 241 will be positioned below the top surface of the sheathing board 102. This creates a space between the mounting portion 241 at the stepped position and the ventilation stand 2, making it more difficult for rainwater to enter.

Figure 12 is a schematic enlarged end view showing a ventilation vertical structure according to a fifth embodiment of the present invention.

The following explanation focuses on the differences between the first and second embodiments, as they are essentially the same. While the first embodiment was related to a ventilation ridge installed on the ridge of the ventilation vertical structure 1, the fifth embodiment is related to a ventilation flashing installed in the girder direction at the eaves joint of the ventilation vertical structure 1.

Referring to the same figure, the ventilation flashing 140 in this ventilation stand structure 1 is installed at the juncture between the exterior wall substrate 108 and the roof substrate 100 in the girder direction (hereinafter referred to as the "girder direction juncture"), and is configured to cover the end of the ventilation stand 2 at the juncture side.

The installation of the ventilation flashing 140 is explained below. At the end of the girder-direction joint of the ventilation stand 2, a panel 138 is attached between adjacent connecting parts 21.

A gutter 141 is attached above the end of the girder-direction joint on the roof underlayment 100, and ventilation material 132 is attached on top of it so that it partially overlaps it. The ventilation material 132 consists of an array of multiple truncated cone-shaped resin cones. Furthermore, a wooden underlayment 136 is attached on top of the ventilation material 132. A wooden underlayment 137 is attached on top of the wooden underlayment 136, extending both above and below the waterline. An apron panel 139 is fixed with screws 134 to the belowwater end of the wooden underlayment 137, and a ventilation flashing 140 is attached on top of the wooden underlayment 137 to cover the girder-direction joint.

The structure of the ventilation flashing 140 is explained below.

More specifically, the ventilation flashing 140 comprises a fixing portion 142 that is sandwiched between the furring strip 135 and the exterior wall base 108 and secured to the exterior wall base 108 with screws or the like; an upper cover portion 143 that extends diagonally downward and outward from the lower end of the fixing portion 142 and has ventilation holes 144 formed therein; a front cover portion 147 that extends downward from the lower end of the upper cover portion 143 to cover the apron panel 139; a lower base portion 145 that is located below the upper cover portion 143 and rests on the wooden base 137; ventilation material 146 that is sandwiched between the underside of the upper cover portion 143 and the upper surface of the lower base portion 145 and is configured to allow ventilation between the ventilation holes 144 and the interior of the building; and a bushing pin 148 that secures the ventilation flashing 140 to the wooden base 137.

In the ventilation vertical-flat structure 1, a second ventilation path 152 is formed, which flows from the girder-direction joint side end of the first ventilation path 110, passes through the ventilation material 32, passes through the ventilation material 146, and connects to the outside via the ventilation hole 144. As a result, outside air entering from the eaves passes through the first ventilation path 110, then passes through the ventilation material 132 and the second ventilation path 152, and then further passes through the ventilation material 146 before exiting to the outside via the ventilation hole 144.

In addition, because an opening is provided between the exterior wall substrate 108 and the roof substrate 100, air from the attic also passes through the third air passage 153 formed in this opening, and then passes through the ventilation material 146 and exits to the outside through the ventilation hole 144.

With this configuration, an air passage is formed in the tatehira-gable roof up to the girder-direction joint, allowing ventilation throughout the entire tatehira-gable roof. It is also possible to achieve ventilation from the attic.

Figure 13 is a schematic enlarged end view showing a ventilation vertical structure according to a sixth embodiment of the present invention, and corresponds to Figure 7.

Note that the explanation below is essentially the same as the first embodiment, so the differences will be focused on. In the first embodiment, the eaves joint was configured so that the bent portion 98 of the ventilation stand 95 extended upward along the exterior wall base 108, but in the ventilation stand structure 1 of the sixth embodiment, the bent portion is attached to the wooden base.

Referring to the same figure, the ventilation stand (siding connection ventilation stand) 155 is provided at one end on the adjacent ventilation stand 2 side and includes a connecting portion 156 for connecting to the adjacent ventilation stand 2, and a bent portion 98 extending upward from the other end on the exterior wall base 108 side. The connecting portion 156 is a bottom seam similar to the connecting portion 21b of the ventilation stand 2 described above.

The flashing 170 is attached so as to cover the area from the exterior wall base 108 to the upper part of the connecting part 156. Specifically, the flashing 170 comprises a fixing part 171 that is fixed to the exterior wall base 108 with screws 165, a cover part 172 that extends diagonally downward from the lower end of the fixing part 171 toward the connecting part 156, and a hem part 173 that extends downward from the lower end of the cover part 172 to cover the upper part of the connecting part 156.

During construction, first, the base board 159 is attached to the roof underlayment 100 in a predetermined position. Next, the other end of the ventilation stand 155, which is on the exterior wall underlayment 108 side, is raised along the base board 159 to form a bent section 98, which is then fixed to the base board 159 with a screw 160. Next, a base board 161, which extends further toward the connecting section 156 in the width direction (left-right direction in the drawing) than the base board 159, is attached on top of the base board 159, and an apron panel door 162 is fixed to the end of the base board 161 on the connecting section 156 side with a screw 163. Next, a base board 164 of the same width as the base board 161 is attached on top of the base board 161. The flashing 170 is then attached to the exterior wall base 108 so as to cover the upper part of the connecting part 156, the fixing part 171 is fixed to the exterior wall base 108 with screws 165, and the bottom part 173 is fixed to the base wood 164 with screws 166.

This configuration allows for installation without the use of metal fittings, reducing the number of parts. Furthermore, the screws 163 that secure the apron panel 162 to the base wood 161 and the screws 166 that secure the flashing 170 to the base wood 164 are fastened horizontally, reducing the risk of water intrusion.

Figure 14 is a schematic enlarged end view showing a ventilation vertical structure according to the seventh embodiment of the present invention.

The following explanation focuses on the differences between the first and second embodiments, as they are essentially the same. While the first embodiment was related to a ventilation ridge installed on the ridge of the ventilation vertical structure 1, the seventh embodiment is related to a parapet installed on the top of a house roof.

Referring to the same figure, the parapet section 180 installed at the top of the roof of the house comprises a roof underlayment 100 extending from the eaves to the roof top, a ventilation stand 2 installed above the roof underlayment 100, rafters 181 extending from the eaves to the roof top and supporting the roof underlayment 100, rafter supports 182 extending perpendicular to the rafters 181 and supporting the rafters 181, and a parapet ventilation system 190 installed at the top of the roof, at the parapet section 180 side end of the ventilation stand 2.

The following explains the interface between the parapet section 180 and the roof.

A wooden subfloor 183 is attached to the wooden subfloor 136, extending downward from the water surface of the wooden subfloor 36. An apron panel 184 is fixed to the downward end of the wooden subfloor 183 with screws or the like. A flashing gutter 185 is also installed, basically the same as that described using Figure 14, covering the area from the parapet ventilation system 190 to the roof top of the ventilation stand 2.

Next, we will explain the parapet ventilation system 190 as follows. The parapet ventilation system 190 is designed to efficiently ventilate the air inside the parapet to the outside.

Specifically, the parapet ventilation system 190 comprises a body 192 composed of a pair of exterior wall base materials 191a, 191b which are ceramic siding and which has a space S formed inside; waist wall ventilation members 193a, 193b which are provided in the middle of the pair of exterior wall base materials 191a, 191b in the vertical direction, i.e., on the sides of the body 192, and which communicate with the outside of the body 192; exterior wall materials 195a, 195b which are installed on the outside of the body 192 via furring strips 194a, 194b, respectively; a fascia cover 198 which is installed on the top edge 192a of the body 192 via a seat sheet 196 and a cushioning material 197; and ventilation members 199a, 199b which are installed in the space formed by the upper parts of the exterior wall materials 195a, 195b, the lower part of the fascia cover 198, and the upper part of the body 192.

Technology such as the "Coping Structure and Ventilation Member" disclosed in Japanese Patent Application Publication No. 2018-127883 can be used for the under-coping ventilation structure of this parapet ventilation system 190. Furthermore, technology such as the "Exterior Wall Ventilation Structure, Under-Coping Ventilation Structure, and Construction Method for Exterior Wall Ventilation Structure" disclosed in Japanese Patent Application Publication No. 2016-89487 can be used for the waist wall ventilation members 193a, 193b, and 200.

Furthermore, the exterior wall base material 191a, furring strips 194a, and exterior wall material 195a extend continuously from the bottom of the house.

On the other hand, since a roof is formed on the side of the exterior wall base material 191b, furring strips 194b, and exterior wall material 195b, the sizes of the exterior wall base material 191b, furring strips 194b, and exterior wall material 195b are set based on the assumption that they will fit into the roof.

In addition, in the parapet ventilation system 190, a waist wall ventilation member 200 is installed at the lower end of the exterior wall base material 191b, thereby forming a second ventilation path 201 that connects the space S with the first ventilation path 110 on the ventilation stand 2 side.

The benefits of this configuration are as follows:

First, as described above, the parapet ventilation system 190 is connected to the first air passage 110, allowing air from the first air passage 110 to be ventilated to the outside. Specifically, the first air passage 110 is connected to the parapet ventilation system 190 via the ventilation material 132. Furthermore, the second air passage 201 is formed by the waist wall ventilation member 200, thereby connecting the first air passage 110 to the space S inside the main body 192. Furthermore, in the space S, air can flow upward, as indicated by the solid arrow 202. Ventilation layers 205a and 205b are formed between exterior wall base materials 191a and 191b and exterior wall materials 195a and 195b via furring strips 194a and 194b, respectively. This creates third ventilation paths 203a and 203b, through which air flows from space S through waist wall ventilation members 193a and 193b to ventilation layers 205a and 205b. Fourth ventilation paths 206a and 206b are formed from ventilation layers 205a and 205b, respectively, and connect to the outside via ventilation members 199a and 199b. In this way, first ventilation path 110, second ventilation path 201, third ventilation paths 203a and 203b, and fourth ventilation paths 206a and 206b are connected in series, allowing air from the eaves to be efficiently ventilated to the outside through parapet ventilation system 190 installed at the top of the roof.

The top end 181a of the rafter 181 extends beyond the position of the rafter support 182 located below one exterior wall (the side where the exterior wall base material 191b is installed) and onto the other exterior wall on the opposite side (the side where the exterior wall base material 191a is installed). The effects of this configuration are as follows:

Previously, there were models that were sized to reach the rafter support 182, and the exterior wall on the roof side extended downward to the rafter support 182. With this type of configuration, there was a risk that the attic K would not be adequately ventilated.

With the above configuration, the rafters 181 extend to the other exterior wall, allowing air from the attic K to move through the spaces between the rafters 181 in the direction of arrow 206 to below the parapet. Furthermore, the air that has moved below the parapet can be ventilated to the outside through the parapet ventilation system 190 above.

Figure 15 is a schematic enlarged end view showing a ventilation vertical structure according to the eighth embodiment of the present invention.

Note that this explanation is essentially the same as the seventh embodiment, so we will focus on the differences. In the seventh embodiment, the first air vent is connected to the interior space of the building structure, but in the eighth embodiment, the first air vent is connected to the ventilation layer on the roof side.

Referring to the same figure, first, at the lower end of the exterior wall base material 191b, instead of a waist wall ventilation member 200 being installed, it extends to the level of the roof base material 100, and the lower end of the exterior wall base material 191b abuts against the roof base material 100.

Furthermore, the flashing 186 has a spacer portion 187 formed at the fixing portion where it is fixed to the exterior wall base material 191b. That is, the spacer portion 187 is formed by providing a step of a size that allows it to be inserted between the exterior wall base material 191b and the exterior wall material 195b, and this step also has a through-hole formed in it. With this configuration, the first ventilation passage 110 on the ventilation stand 2 side is connected to the ventilation layer 205b. This allows air from the eaves to be efficiently ventilated to the outside through the parapet ventilation system 190 installed at the top of the roof.

In the above embodiments, a ventilation vertical structure having a specific shape has been described, but this is not limited to this. For example, the eaves ventilation member has a hanging portion and a bottom portion, and the bottom portion has the first ventilation portion, but this is not limited to this. The first ventilation portion may be provided in the hanging portion rather than the bottom portion. Furthermore, the portion of the eaves ventilation member that has the first ventilation portion may have a different shape. The eaves ventilation member may have an eaves portion that has a first ventilation portion formed below the mounting portion and consisting of an opening that is open to the outside.

Furthermore, in the seventh and eighth embodiments, a ventilated roof was used as the roofing material, but other types of roofing materials, such as a slate roof, may also be used.

Furthermore, in the above-mentioned embodiments, specific ventilation devices such as ventilation ridges, ventilation flashings, and parapet ventilation systems have been described for the top of the roof above water or the junction between the top of the roof above water and the wall, but this is not limited to these. Any ventilation device can be used as long as it is installed at the above-water end of the ventilation stand and forms a second ventilation path that connects the first ventilation path to the outside.

Furthermore, in the seventh and eighth embodiments above, the parapet ventilation system was described as being connected to the first air passage in a specific manner, but this is not limited to this.

Furthermore, in the seventh and eighth embodiments, ventilation layers were provided on both sides of the body, but this is not limited to this, and the ventilation layer may be provided on only one side.

Furthermore, in the seventh and eighth embodiments, the rafters extend beyond the rafter holders to the other exterior wall, but this is not limited to this and the rafters may be sized to extend all the way to the rafter holders. The rafter holders may also be located closer to the other exterior wall or on the downstream side.

1...Ventilation stand structure 2...Ventilation stand 3...Ventilation ridge 4...Eaves ventilation member 6...Eaves water-repellent material 7...Gable wall water-repellent material 21...Connecting portion 22a, 22b...Convex portion 23...Open portion 32...Ventilation material 42...Ventilation hole 110...First ventilation path 111...Second ventilation path 140...Ventilation flashing 170...Flashing 190...Parapet ventilation system Note that the same symbols in each figure indicate the same or equivalent parts.

Claims (4)

A ventilation structure in a parapet section provided at the top of a roof of a house,
Rafters extending from the eaves to the roof peak, supporting the roof underlayment, and forming an attic space together with the roof underlayment;
a rafter support provided near the roof apex, extending in a direction perpendicular to the rafters and supporting the rafters;
a parapet ventilation system provided in the parapet section ,
The parapet ventilation system includes:
A structure with an internal space ,
a waist wall ventilation member provided on a side of the skeleton and communicating the space inside the skeleton with the outside of the skeleton ;
An exterior wall material installed outside the body via a furring strip;
A ventilation layer formed between the skeleton and the exterior wall material via the furring strip;
A capping cover installed at the top end of the body;
a ventilation member that is installed in a space formed by an upper portion of the exterior wall material, a lower portion of the coping cover, and an upper portion of the skeleton, and that ventilates air from the ventilation layer to the outside;
The rafters extend from one side of the frame to the other side below the parapet,
The attic space is connected to the space inside the parapet through the rafters.
Ventilation structure. The roof structure further includes a ventilation stand installed on the roof substrate, and a rainwater flashing installed to cover the space between the roof top side of the ventilation stand and the parapet portion.
The air in the first ventilation passage formed between the ventilation stand and the roof substrate is ventilated to the outside through the rain flashing.
The ventilated structure of claim 1. Further provided is a second waist wall ventilation member installed at the lower end of the body,
The ventilation structure according to claim 2 , wherein the space inside the body communicates with the first ventilation passage through the second waist wall ventilation member. 3. The ventilation structure according to claim 2, wherein the rain flashing has a portion inserted into the ventilation layer, and a through hole is formed in this portion to allow communication between the ventilation layer and the first ventilation passage.