JP2019173459A - Garret ventilation structure, and ventilation member - Google Patents

Abstract

To provide a garret ventilation structure and a ventilation member whose construction procedure is easy, which can cope with a configuration without an eaves, and in which ventilation between a garret and outside air is possible.SOLUTION: A garret ventilation structure comprises a ventilation member 1 disposed between a decorative plate 102 and an outer wall 103 and capable of forming a ventilation path between a garret 2 and outside air. The ventilation member 1 includes: a ventilation main body member 20 including a metal front face opening portion 24 disposed so as to extend along an outer surface of the outer wall 103, an upper baffle plate portion 23 having an upper baffle plate 29 extending downwardly, and a lower baffle plate portion 33 having a lower baffle plate 31 extending upwardly; and a fireproof inorganic plate material 21 mounted on an upper part of the upper baffle plate portion of the ventilation main body member 20. The garret ventilation structure includes a waterproof thin plate 22 disposed along a surface of the decorative plate 102 and extending from a roof to a lower side of a boundary portion 37 between the ventilation member and the decorative plate.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an attic ventilation structure and a ventilation member provided with a ventilation path for performing ventilation between an attic and outside air.

  In the conventional eaves-end structure related to eaves ceiling mounting or the like, a structure having a ventilation structure between the attic and the outside air is required in order to prevent attic deterioration and legal requirements. As an example of an eaves-end structure having a ventilation structure, one disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2013-147818) is known.

  In Patent Document 1, an upper surface portion and a lower surface portion in which a vent is formed on the back surface side of a plate-shaped main body made of ceramic material, an intermediate portion that connects the upper surface portion and the lower surface portion, the plate-shaped main body And a decorative member with a ventilation fitting made of a substantially U-shaped thin plate material attached to the lower position on the back side of the outer wall of the ventilation fitting. A ventilation structure is described in which the parts are arranged to contact each other.

JP2013-147818A

  However, the ventilation structure described in Patent Document 1 is arranged so that the middle part of the ventilation fitting provided protruding from the back surface of the plate-shaped main body is in contact with the outer wall, so that the ventilation member itself is from the outer wall to the wife side. It is necessary to arrange so that it protrudes.

  Therefore, the ventilation structure described in Patent Document 1 is difficult to use when adopting a structure without eaves because a step is formed on the outer wall. Moreover, since the decorative board described in Patent Document 1 uses ceramic materials, the problem of design and luxury can be solved, but the amount of protrusion of the ventilation fitting protruding to the back side of the plate-like main body can be reduced. In addition, it is necessary to adjust the depth dimension width of the backing material and the outer wall on the side of the rafter to which the decorative board is fixed.

  Therefore, the technical problem to be solved by the present invention is to provide an attic ventilation structure and a ventilation member that allow easy construction procedures and allow ventilation between the attic and the outside air.

  In order to solve the above technical problem, the present invention provides an attic ventilation structure and a ventilation member having the following configurations.

According to the first aspect of the present invention, the ventilation member disposed between the decorative plate and the outer wall fixed to the end surface of the rafter and capable of forming a ventilation path between the attic and the outside air, and along the surface of the decorative plate A waterproof thin plate extending from the roof to the lower side of the boundary portion between the ventilation member and the decorative plate,
The ventilation member is
A metal front opening configured to extend along the outer surface of the outer wall and configured in a plate shape provided with a ventilation opening of the ventilation path;
An upper baffle plate portion connected to the depth side of the front opening and having an upper baffle plate extending downward;
Ventilation having a lower baffle plate portion connected to the depth side of the front opening and arranged to contact the upper end of the outer wall and having the lower baffle plate extending upward at a different depth from the upper baffle plate A body member;
There is provided an attic ventilation structure characterized by having a fireproof inorganic plate placed on an upper side of an upper baffle plate portion of the ventilation main body member.

  According to the second aspect of the present invention, the ventilation main body member further includes a plate material engaging portion that extends above the upper baffle plate portion along the front opening and engages with an upper surface of the fireproof inorganic plate material. The attic ventilation structure according to the first aspect is provided.

  According to the third aspect of the present invention, the upper baffle plate portion has a horizontal portion that supports the inorganic plate material for fire prevention and has a back end connected to the upper baffle plate. An attic ventilation structure according to the first or second aspect is provided.

  According to the fourth aspect of the present invention, the fireproof inorganic plate material is fixed to the ventilation main body member in a state of being sandwiched between the horizontal portion of the upper baffle plate portion and the plate material engaging portion. The attic ventilation structure according to the third aspect is provided.

  According to the fifth aspect of the present invention, the lower baffle plate portion has a plate material mounting surface configured in a flat plate shape on the upper side of the lower baffle plate so as to be able to support the inorganic plate material for fire protection, An attic ventilation structure according to any one of the first to fourth aspects is provided, wherein a ventilation hole is provided in a lower baffle plate.

  According to a sixth aspect of the present invention, any one of the first to fifth aspects is characterized in that the ventilation opening provided in the front opening extends downward from the lower baffle plate member. Provides two attic ventilation structures.

  According to a seventh aspect of the present invention, the front opening portion, the lower baffle plate portion, and the upper baffle plate portion are integrally formed by bending one metal thin plate. An attic ventilation structure according to any one of the first to sixth aspects is provided.

According to the eighth aspect of the present invention, the decorative board fixed to the end face of the rafter, the waterproof thin board extending downward from the roof on the surface of the decorative board, and the outer wall configured substantially flush with the waterproof thin board are provided. In the attic ventilation structure without an eave provided, a ventilation member that is disposed between the decorative plate and the outer wall and can form a ventilation path between the attic and the outside air,
The ventilation member is
A metal front opening configured to extend along an outer surface of the outer wall and configured in a plate shape provided with a ventilation opening of the ventilation path;
An upper baffle plate portion connected to the depth side of the front opening and having an upper baffle plate extending downward;
Ventilation having a lower baffle plate portion connected to the depth side of the front opening and arranged to contact the upper end of the outer wall and having the lower baffle plate extending upward at a different depth from the upper baffle plate A body member;
An inorganic board for fire protection placed on the upper side of the upper baffle plate part of the ventilation body member,
Provided is a ventilation member characterized in that a boundary with the decorative plate is concealed by a waterproof thin plate.

  ADVANTAGE OF THE INVENTION According to this invention, an attic and external air can be ventilated through the said clearance gap by the ventilation member arrange | positioned so that the clearance gap between a decorative board and an outer wall may be plugged from the outer side. Moreover, since the ventilation main body member is comprised with the metal, the ventilation member is excellent in a weather resistance. In addition, an inorganic board material for fire prevention is provided on the upper side of the ventilation main body member, that is, between the ventilation main body member and the decorative board, and the fire prevention performance can be improved, and is arranged along the surface of the decorative board. Due to the characteristics of the fireproof inorganic plate material, the boundary portion with the decorative plate is concealed by a waterproof thin plate without applying a seal, so that the appearance problem can be solved.

  Moreover, since the fireproof inorganic board | plate material is comprised with the inorganic material and cannot transmit heat | fever, it can suppress the temperature rise of a decorative board.

  Furthermore, a lower baffle plate member and an upper baffle plate member are provided, thereby preventing rainwater or the like blown from the vent opening from entering the outer wall.

  Moreover, since the lower baffle plate member and the upper baffle plate member may be fitted and fixed in the gap between the decorative plate and the outer wall, the installation of the ventilation fitting is easy and the installation is easy. .

  Thereby, the construction procedure is easy, for example, there is no eaves in which the outer surface of the decorative plate fixed to the end surface of the rafter and the outer surface of the decorative plate and the outer wall arranged at intervals in the vertical direction are substantially flush. It is possible to provide an attic ventilation structure that allows ventilation between the attic and the outside air that can be applied even in the configuration.

It is a figure which shows the example of the house where the attic ventilation structure concerning embodiment of this invention was used. It is sectional drawing which shows the example of the attic ventilation structure where the ventilation member concerning 1st Embodiment of this invention was used. It is a fragmentary sectional perspective view which shows the structure of the wife side outer wall of FIG. It is a perspective view which shows the structure of the ventilation member concerning 1st Embodiment of this invention. It is sectional drawing which shows the structure of the ventilation member of FIG. It is an enlarged view of VI part of the attic ventilation structure of FIG. It is an expanded sectional view which shows the example of the attic ventilation structure where the ventilation member concerning 2nd Embodiment of this invention was used.

  Hereinafter, a ventilation member according to an embodiment of the present invention and an attic ventilation structure using the ventilation member will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an example of a house in which a ventilation member according to an embodiment of the present invention is used. The ventilation member 1 according to the present embodiment is used in an attic ventilation structure 50 that allows ventilation between the attic and the outside air. The ventilation member 1 is formed between the wife-side decorative plate 102 and the wife-side outer wall 103 of the roof 101 of the house 100 or between the flat decorative plate 104 of the roof 101 of the house 100 and the flat wall 105 that is a flat-side outer wall. It attaches to the clearance gap 17 (refer FIG. 3) formed in between. Hereinafter, although the case where the ventilation member 1 of this invention is attached to the wife side is demonstrated, a basic structure is common also when attaching to the flat side.

(First embodiment)
FIG. 2 is a cross-sectional view showing an example of an attic ventilation structure using the ventilation member according to the first embodiment of the present invention. FIG. 3 is a partial cross-sectional perspective view showing the configuration of the wife side outer wall of FIG. 2. FIG. 2 illustrates an attic ventilation structure using a ventilation member on the wife side as an example, and corresponds to a cross-sectional view taken along the line II-II in FIG. 1.

  In the attic ventilation structure 50 according to this embodiment, the ventilation member according to the present invention is used on the wife side as described above. In the attic ventilation structure 50 according to the present embodiment, the base plate 4 is laid on the rafter 3 and the roof decorative material 5 such as a tile is placed thereon. A draining plate 6 is provided at the tip of the field plate 4.

  A wife side decorative plate 102 is provided on the leading end side of the rafter 3. The wife-side decorative plate 102 is provided in a direction intersecting along the extending direction of the rafters 3 so as to straddle the plurality of rafters 3. The wife side decorative board 102 is fixed to the rafter 3 with a screw or the like (not shown). Fixing is not limited to screws, and fixing members such as nails, screws, and metal fittings can be used.

  The wife-side decorative plate 102 includes a base material 7 provided at the tip of the rafter and a decorative material 8 disposed on the surface side of the base material 7. Wood or the like is used for the base material 7, and ceramic materials or the like can be suitably used for the decorative material 8. As the ceramic material, for example, a cement-based extrusion molded body made of an inorganic material and having a specific gravity of about 0.75 to 2.0 can be used. The wife-side decorative board 102 can be directly attached to the rafter 3 without the base material 7.

  A waterproof thin plate 22 is disposed on the surface of the decorative material 8 of the wife side decorative plate 102. Details of the waterproof thin plate 22 will be described later.

  The wife-side outer wall 103 is fixed to a pillar 9 that is arranged at a predetermined interval and a wife beam 10 that is horizontally arranged at the upper end of the pillar 9. A ceiling 11 is provided between the pillar 9 and the end beam 10. The space between the ceiling 11 and the field board 4 becomes the attic 2. Further, an inner wall 12 is disposed inside the pillar 9, that is, on the indoor side. The inside of the inner wall 12 becomes a living space 12a.

  The wife side outer wall 103 is configured by laminating a base plywood 13, a ventilation trunk edge 14, and a siding material 15. The base plywood 13 is made of thin wood fixed to the pillar 9, and a moisture-proof sheet 13a is stuck on the surface. The thickness dimension of the base plywood 13 can be about 9 mm, for example.

  As shown in FIG. 3, the ventilator edge 14 is arranged on the outer surface of the base plywood 13 with a predetermined interval. The space between the ventilator rims 14 becomes an in-wall ventilation path 16 of the wife side outer wall 103. The thickness dimension of the ventilation trunk edge 14 can be set to, for example, about 15 mm.

  The siding material 15 is disposed on the outermost exterior of the wife side outer wall. As the siding material 15, for example, a material similar to the decorative material 8 of the wife side decorative plate 102 can be used. The thickness dimension of the siding material 15 can be about 16 mm, for example.

  In the present embodiment, the siding material 15 is configured to have a slight level difference on the upper end side compared to the base plywood 13 and the ventilator edge 14, and to form a seal filling space 15a at the upper end. The seal filling space 15a is used for fixing a ventilation member 1 described later. Further, the seal filling space 15a is filled with a seal material 15b so as to conceal a fixing portion 39 of the ventilation member 1 described later.

  In the present embodiment, the outer surfaces of the wife-side outer wall 103 and the wife-side decorative plate 102 are substantially the same plane. That is, the house 100 according to the present embodiment is a house having no eaves. In order to make the outer surfaces of the wife side outer wall 103 and the wife side decorative plate 102 the same plane, for example, the thickness dimension of the base material 7 of the wife side decorative plate 102 and the base plywood 13 of the wife side outer wall 103 may be adjusted. .

  A gap 17 is provided between the wife-side outer wall 103 and the wife-side decorative plate 102, and the ventilation member 1 is disposed in the gap 17. As will be described later, the ventilation member 1 is a member having a length dimension L of about 2 to 3 m, and the gap 17 may be formed only in a portion where the ventilation member 1 is disposed.

  FIG. 4 is a perspective view showing the configuration of the ventilation member 1 according to the first embodiment of the present invention. The ventilation member 1 according to the present embodiment includes a ventilation main body member 20 made of metal, and a fireproof inorganic plate 21 attached above the ventilation main body member 20. In the present embodiment, the length L of the ventilation member 1 is 2 to 3 m. Further, the overall height dimension H <b> 1 including the ventilation main body member 20 and the fireproof inorganic plate 21 of the ventilation member 1 corresponds to the height dimension of the gap 17. In addition, the magnitude | size of the ventilation member 1 is not necessarily limited to the said size, It can change suitably according to the magnitude | size of an eaves structure.

  The ventilation main body member 20 is configured by bending a metal plate having a certain thickness dimension. Examples of the material suitably used for the ventilation main body member 20 include stainless steel, steel, and aluminum material. The front surface 20a of the ventilation main body member 20 is a front opening 24 in which a large number of ventilation openings 25 are formed. The front surface 20a may be subjected to a rust prevention treatment such as coating or a decoration treatment for improving the design surface.

  When the ventilation main body member 20 is made of metal, the weather resistance of the ventilation main body member 20 exposed outdoors can be improved.

  The ventilation openings 25 are designed in size and number so that a predetermined opening area can be secured per unit length. In the present embodiment, the vent opening 25 is formed in a long hole shape that is long in the vertical direction, but is not limited to the long hole shape.

  In the present embodiment, the upper end of the front surface 20 a of the ventilation main body member 20 is a plate material engaging portion 26 for fixing the fireproof inorganic plate material 21. The plate material engaging portion 26 is a sandwiching plate piece 27 whose upper end is folded back in the horizontal direction, and sandwiches the horizontal portion 28 of the upper baffle plate portion 23 described later and the upper and lower surfaces of the fireproof inorganic plate material 21. Then, the fireproof inorganic plate 21 and the ventilation main body member 20 are engaged.

  The fireproof inorganic plate 21 is made of an inorganic material formed into a plate shape. As a material suitably used for the inorganic plate material 21 for fire prevention, a cement-based extruded product having a specific gravity of about 0.8 to 1.5 is preferably used. Ceramic materials such as fiber-mixed calcium silicate board, fiber-mixed cement calcium silicate board, fiber-reinforced cement board, lime / calcium silicate board, hard wood chip cement board, etc. as specific materials used for inorganic board 21 for fire prevention Can be used. Since these materials have high fireproof performance and are difficult to transmit heat, it is possible to make it difficult for heat from the ventilation body member 20 to be transmitted to the inside of the wife side outer wall 103, and to suppress the temperature rise of the living space 12a and to prevent cold. Performance can be improved.

  As shown in FIG. 4, the fireproof inorganic plate 21 is attached to the upper side of the ventilation main body member 20, and thus has substantially the same length as the ventilation main body member 20. The thickness dimension is preferably about 2 to 8 cm, particularly about 3 to 5 cm.

  The ventilation main body member 20 has an upper baffle plate portion 23 and a lower baffle plate portion 33 in order to fix the fireproof inorganic plate material 21.

  The upper baffle plate portion 23 is welded to the rear surface side of the front opening 24 and the position above the opening 25, and horizontally extends so as to face the sandwiching plate piece 27 of the plate material engaging portion 26. This is an L-shaped member having an upper baffle plate 29 in which the depth side of the portion 28 is folded downward. As described above, the horizontal portion 28 and the sandwiching plate piece 27 sandwich and support the fireproof inorganic plate 21 from above and below, and therefore the separation distance H3 between them is equal to the thickness dimension of the fireproof inorganic plate 21. Has been.

  In the present embodiment, the upper baffle plate portion 23 is welded to the back surface side of the front opening portion 24. However, for example, a single metal plate continuing from the plate material engaging portion 26 can be folded back.

  The lower baffle plate portion 33 is configured by folding back the back end portion of the bottom surface portion 30 extending from the lower end of the front opening 24. As shown in FIG. 4, the lower baffle plate portion 33 includes a lower baffle plate 31 that is continuous with the bottom surface portion 30 and extends upward in the vertical direction, and a horizontal portion that is continuous with the lower baffle plate 31 and folded back in the horizontal direction. 32 and a back plate portion 34 folded downward on the back side of the horizontal portion 32 are integrally formed.

  The lower baffle plate 31 is disposed at a different depth position from the upper baffle plate 29. With respect to the height dimension H <b> 2 of the lower baffle plate 31, the horizontal portion 32 has the same height as the horizontal portion 28 of the plate material engaging portion 26. That is, the fireproof inorganic plate material 21 is placed and supported on the horizontal portion 28 of the plate material engaging portion 26 and the horizontal portion 32 of the lower baffle plate 31.

  In the upper position of the lower baffle plate 31, a plurality of vent holes 35 are provided in a line in the length direction. The size and the number of the vent holes 35 are designed so that a predetermined opening area can be secured per unit length. In the present embodiment, a rectangular opening having a side of about 2 to 3 cm is formed.

  The horizontal portion 32 includes a support region 32 a that supports the vicinity of the rear end portion of the fireproof inorganic plate 21 on the front side, and a ventilation region 32 b that extends to the rear of the fireproof inorganic plate 21. The support region 32a corresponds to an example of the plate material placement surface of the present invention. A rectangular ventilation hole 36 is provided in the ventilation region 32b. The size and the number of the vent holes 36 are designed so that a predetermined opening area can be secured per unit length. In the present embodiment, a rectangular opening having a side of about 2 to 3 cm is formed.

  The back plate portion 34 abuts on the surface of the end beam 10 and determines the attachment position of the ventilation member 1 in the depth direction. In the present embodiment, the back plate portion 34 is configured to extend downward, but may be configured to extend upward. The back surface of the back plate portion 34 may be fixed by being adhered to the surface of the end beam 10 with an adhesive or the like.

  A fixed portion 39 is disposed below the bottom surface portion 30. The fixing portion 39 abuts on the ventilation trunk edge 14 located on the back side of the seal filling space 15a. That is, the distance D from the back surface portion 34 to the fixing portion 39 is configured to be approximately equal to the thickness dimension of the base plywood 13 and the ventilator edge 14. As shown in FIGS. 2 and 6, the fixing portion 39 is fixed to the ventilation trunk edge 14 by a fixing nail 106.

  FIG. 6 is a partially enlarged view of the attic ventilation structure including the ventilation member 1 according to the present embodiment. As shown in FIG. 6, the ventilation member 1 is arranged in a gap formed between the wife-side decorative plate 102 and the wife-side outer wall 103 with respect to the ventilation main body member 20. At this time, it arrange | positions so that the whole surface opening part 24 of the ventilation main body member 20 may become substantially the same surface as the wife side decorative board 102 and the wife side outer wall 103 surface.

  That is, the fireproof inorganic plate 21 of the ventilation member 1 contacts the lower surface of the wife side decorative plate 102, and the bottom surface portion 30 of the ventilation member 1 contacts the upper surfaces of the base plywood 13 and the ventilation trunk edge 14 of the wife side outer wall 103. To do. Since the siding material 15 is configured to be lower than the base plywood 13 and the ventilator edge 14 as described above, a gap is formed between the bottom surface portion 30 and the gap functions as the seal filling space 15a.

  The ventilation member 1 may be fixed by bonding the back surface of the bottom surface portion 30 to the wife side outer wall 103 with an adhesive or the like. A sealing material 15 b is filled in a sealing filling space 15 a between the ventilation member 1 and the siding material 15 of the wife side outer wall 103. Thereby, between the ventilation member and the wife side outer wall 103 is comprised watertight.

  On the other hand, since it is difficult to fix the upper surface of the fireproof inorganic plate 21 and the wife-side decorative plate 102 by adhesion or the like, it is difficult to ensure watertightness. For this reason, in this embodiment, in order to ensure waterproofing of the ventilation member 1 and the wife side decorative plate 102, the waterproof thin plate 22 is provided.

  The waterproof thin plate 22 ensures the waterproof property of the boundary portion 37 by concealing the boundary portion 37 between the ventilation member 1 and the wife side decorative plate 102.

  The waterproof thin plate 22 is made of, for example, metal, and is located between the roof base plate 4 and the draining plate 6 along the surface of the base plate 4 and from the lower surface of the base plate 4 to the surface of the wife side decorative plate 102. It is a plate-shaped member extended along. The lower end 22 a of the waterproof thin plate 22 reaches the lower side of the boundary portion 37 between the ventilation member 1 and the wife-side decorative plate 102.

  As shown in FIG. 6, in the attic ventilation structure 50, as shown by an arrow 80, a ventilation path 80 that connects the attic and the outside air is formed by the ventilation member, and ventilation between the attic and the outside air can be performed. .

  That is, the ventilation path 80 extends from the ventilation opening 25 of the ventilation main body member 20 to the back side of the front opening 24, passes through the gap between the upper baffle plate 29 and the lower baffle plate 31, and vents of the lower baffle plate 31. 35. It communicates with the attic through the vent 36 of the horizontal part 32.

  The gap dimension A between the front opening 24 and the upper baffle plate 29, the gap dimension B between the upper baffle plate 29 and the lower baffle plate 31, and the gap dimension C between the lower baffle plate 31 and the back plate part 34 are both: It is designed so that a predetermined opening area can be ensured, and may be determined from the viewpoint of the thickness dimension of the wife side outer wall 103, the opening area, and the like. In the present embodiment, the gap dimension A, the gap dimension B, and the gap dimension C are all the same.

  In addition, the upper baffle plate 29 and the lower baffle plate 31 meander the ventilation path 80 and prevent rainwater or the like entering from the ventilation opening 25 from entering the attic side.

  Further, since the space between the lower baffle plate 31 and the back plate portion 34 is opened without blocking the in-wall ventilation path 16, as shown by an arrow 81, the in-wall ventilation path 16 and the attic Aeration can be ensured. Further, since the vent hole 35 of the lower baffle plate 31 is provided in the vicinity of the upper end of the lower baffle plate 31, the inflow of water into the in-wall ventilation path 16 can be suppressed.

  Further, the ventilation opening 25 of the front opening 24 has a lower end position 25 a that is substantially the same height as the bottom surface 30, that is, from the lower baffle plate 31 provided on the surface of the bottom surface 30. Is also configured to be located on the lower side. As a result, the water that has entered the ventilation path 80 is discharged from the ventilation opening 25 to the outside. In addition, in order to discharge | emit the water which entered the ventilation path 80 more easily, you may comprise the bottom part 30 inclining slightly so that the front side may become low.

  In the attic ventilation structure according to the present embodiment, as described above, the ventilation path 80 provided in the ventilation member 1 is provided by arranging the ventilation member 1 in the gap 17 between the wife-side decorative plate 102 and the wife-side outer wall 103. Thus, the attic and the outside air can be ventilated. On the other hand, the ventilation path meanders by a plurality of baffle plates provided in the ventilation member 1, preventing sudden inflow of air and preventing intrusion of rainwater or the like into the attic.

  Further, by forming the ventilation main body member 20 from a metal, the weather resistance of the ventilation main body member 20 exposed to the outdoors can be improved. On the other hand, the fireproof inorganic plate 21 is made of a cement-based material, thereby allowing ventilation. It is possible to make it difficult for heat from the main body member 20 to be transmitted to the inside of the wife side outer wall 103. Thereby, suppression of the temperature rise of the living space 12a and cold protection performance can be improved.

  Further, by providing the waterproof thin plate 22 extending from the roof along the wife side decorative plate 102 to the lower side of the boundary portion 37, the boundary portion 37 between the ventilation member 1 and the wife side decorative plate 102 due to material and structural factors. The waterproofness can be ensured.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. FIG. 7 is an enlarged cross-sectional view showing an example of the attic ventilation structure 51 in which the ventilation member 41 according to the second embodiment of the present invention is used. The ventilation member 41 according to the present embodiment is disposed in the gap 17 between the wife-side outer wall 103 and the wife-side decorative plate 102, similarly to the ventilation member 1 according to the first embodiment. Further, the ventilation main body member 20 made of metal and the fireproof inorganic plate 21 provided on the upper side of the ventilation main body member 20 are configured. Hereinafter, it demonstrates centering around difference with the ventilation member 1 concerning 1st Embodiment, and abbreviate | omits description about a common part.

  The ventilation main body member 20 is configured by bending a metal plate having a constant thickness dimension, and is different from the first embodiment in that the bottom plate portion 30 includes a second lower baffle plate 38.

  The second lower baffle plate 38 is a plate-like member that is welded to a depth position between the front opening 24 and the upper baffle 29 and is provided substantially parallel to the front opening 24. The second lower baffle plate 38 extends upward in the vertical direction, and the height thereof is configured such that the upper end portion 38 a is higher than the lower end portion 29 a of the upper baffle plate 29.

  The ventilation member 41 has a ventilation path that communicates the attic and the outside air. By using this ventilation member 41 in the attic ventilation structure, the ventilation between the attic and the outside air can be performed.

  Further, since the upper baffle plate 29 and the second lower baffle plate 38 are configured to have a length that overlaps with each other in the height direction, the ventilation path 80 meanders, and rainwater or the like that has entered from the ventilation opening 24 is generated. It is difficult to enter the attic.

  On the other hand, a plurality of drain holes 40 are provided at a lower end position of the second lower baffle plate 38 at predetermined intervals in the length direction of the ventilation member 41. The drain hole 40 can discharge the water in the ventilation path to the outside.

  As described above, according to the attic ventilation structure of the present embodiment, the ventilation member 1 is provided in the ventilation member 1 by arranging the ventilation member 1 in the gap 17 between the wife-side decorative plate 102 and the wife-side outer wall 103. The ventilation path 80 is configured to allow ventilation between the attic and the outside air. On the other hand, the ventilation path meanders by a plurality of baffle plates provided in the ventilation member 1, preventing sudden inflow of air and preventing intrusion of rainwater or the like into the attic.

  In addition, this invention is not limited to the said embodiment, It can implement in another various aspect.

  For example, the ventilation member of the present invention is not limited to the wife side of the above embodiment, and can be used on the flat side.

  Moreover, in each said embodiment, although there is only one upper baffle plate, there may be a plurality. Further, the lower baffle plate may be three or more. The number of these baffle plates can be determined based on the opening area of the ventilation path.

DESCRIPTION OF SYMBOLS 1,41 Ventilation member 2 Attic 3 Rafter 4 Field plate 5 Roof decoration material 6 Drainage board 7 Base material 8 Cosmetic material 9 Pillar 10 Tail beam 11 Ceiling 12 Inner wall 12a Living space 13 Base plywood 13a Moisture-proof sheet 14 Venting trunk edge 15 Siding material 15a Seal filling space 16 In-wall ventilation path 17 Clearance 20 Ventilation body member 20a Front surface 21 of ventilation body member Fireproof inorganic plate 22 Waterproof thin plate 22a Waterproof thin plate lower end 23 Upper baffle plate portion 24 Front opening portion 25 Ventilation opening 26 Plate material engagement portion 27 Nipping plate piece 28 Horizontal portion 29 Upper baffle plate 29a Upper baffle plate lower end portion 30 Bottom surface portion 31 Lower baffle plate 32 Horizontal portion 32a Support region 32b Ventilation region 33 Lower baffle plate portion 34 Back plate portion 35 Vent port 36 Vent port 37 Boundary portion 38 Second lower baffle plate 39 Fixing portion 40 Drain holes 50, 51 Attic ventilation structure 80, 81 100 houses 101 roof 104 flat side decorative plate 105 Hirakabe 102 gable veneer 103 gable outer wall 106 locking nail

Claims (8)

A ventilation member disposed between a decorative plate and an outer wall fixed to an end face of the rafter, and capable of forming a ventilation path between the attic and the outside air; and disposed along a surface of the decorative plate, and extending from the roof to the ventilation member. A waterproof thin plate extending to the lower side of the boundary portion of the decorative plate,
The ventilation member is
A metal front opening configured to extend along the outer surface of the outer wall and configured in a plate shape provided with a ventilation opening of the ventilation path;
An upper baffle plate portion connected to the depth side of the front opening and having an upper baffle plate extending downward;
Ventilation having a lower baffle plate portion connected to the depth side of the front opening and arranged to contact the upper end of the outer wall and having the lower baffle plate extending upward at a different depth from the upper baffle plate A body member;
An attic ventilation structure comprising a fireproof inorganic plate placed on an upper side of an upper baffle plate portion of the ventilation main body member.   The said ventilation main body member further has a board | plate material engaging part extended above the upper baffle board part along the said front surface opening part, and engaging with the upper surface of the said inorganic board | plate for fire prevention, The said 1st aspect is characterized by the above-mentioned. Attic ventilation structure as described.   3. The attic ventilation according to claim 1, wherein the upper baffle plate portion has a horizontal portion that supports the inorganic plate material for fire prevention and has a back end connected to the upper baffle plate. Construction.   The said fireproof inorganic board | plate material is fixed to the said ventilation | gas_flowing main body member in the state clamped between the horizontal part of the said upper baffle board part, and the said board | plate material engaging part, It is characterized by the above-mentioned. Attic ventilation structure.   The lower baffle plate portion has a plate material mounting surface configured in a flat plate shape on the upper side of the lower baffle plate so as to be capable of supporting the inorganic plate material for fire protection, and the lower baffle plate is provided with a vent hole. The attic ventilation structure according to any one of claims 1 to 4, wherein the attic ventilation structure is provided.   The attic ventilation structure according to any one of claims 1 to 5, wherein the ventilation opening provided in the front opening extends downward from the lower baffle plate member.   The said front opening part, a lower baffle board part, and an upper baffle board part are integrally comprised by bend | folding one metal thin plate, It is any one of Claim 1 to 6 characterized by the above-mentioned. Attic ventilation structure as described. Attic ventilation structure having no eaves provided with a decorative board fixed to an end face of a rafter, a waterproof thin board extending downward from the roof on the surface of the decorative board, and an outer wall configured substantially flush with the waterproof thin board A ventilation member that is disposed between the decorative panel and the outer wall and is capable of forming a ventilation path between the attic and the outside air,
The ventilation member is
A metal front opening configured to extend along an outer surface of the outer wall and configured in a plate shape provided with a ventilation opening of the ventilation path;
An upper baffle plate portion connected to the depth side of the front opening and having an upper baffle plate extending downward;
Ventilation having a lower baffle plate portion connected to the depth side of the front opening and arranged to contact the upper end of the outer wall and having the lower baffle plate extending upward at a different depth from the upper baffle plate A body member;
An inorganic board for fire protection placed on the upper side of the upper baffle plate part of the ventilation body member,
The ventilation member, wherein a boundary with the decorative plate is concealed by a waterproof thin plate.

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