JP4478433B2 - Ventilation structure of building - Google Patents

Description

  The present invention relates to a ventilation structure in a shed space of a building using a flat roof.

  Conventionally, a ventilation member that communicates between the attic space on the underside of the building roof and the outside of the building ventilates the attic space of the building, and the temperature of the building rises due to direct sunlight in summer, etc. The temperature in the attic space is adjusted so that it does not. When the roof is an inclined roof, a ventilation structure is known in which an air inlet built in the eaves of the roof is provided and an air outlet is provided at the top of the back of the hut (see, for example, Patent Document 1). In the ventilation structure of a building as shown in Patent Document 1, a ventilation opening is provided on the back of the eaves, which is a part that is hidden from the outside of the building and cannot be visually recognized. Since it can be installed over the entire area of the eaves, the amount of ventilation increases and the ventilation capacity increases.

  On the other hand, when the shape of the roof is a flat roof, no eaves are provided on the flat roof, and therefore a ventilation port cannot be provided below the eaves. Therefore, in order to ventilate the building, as shown in FIG. 5, ventilation hardware 72 communicating with a plurality of attic spaces is attached to the outer wall surface 71 of the building 7 to ventilate the attic space.

Japanese Patent Laid-Open No. 10-205847 (FIG. 3)

  However, in the ventilation structure of a flat roof building as shown in FIG. 5, if only a small number of ventilation hardware is attached, the ventilation amount is small, and the ventilation of the attic space is insufficient. Therefore, in order to sufficiently ventilate the entire cabin space, a large number of ventilation hardware 72 is required. However, providing such ventilated hardware 72 over the outer periphery of the building 7 makes the appearance worse, and it is necessary to provide many holes for attaching these ventilated hardware 72. Since it is necessary to perform waterproofing between all the holes and the ventilation hardware 72, much labor and cost are required. In addition, since a large number of ventilation hardware 72 is required, the number of parts is increased and the cost is further increased.

  The objective of this invention is providing the ventilation structure of the land roof which can reduce the effort and cost of installation, and can ventilate a hut space.

Ventilation structure of the flat roof of the present invention is a ventilation structure of a building 1 having a flat roof 10 erected the parapet 100 to the peripheral portion, said parapets 100 has an outer external wall materials provided outside the side of the flat roof 10 110 and an inner external wall member 120 provided on the inner side of the flat roof 10, and the upper part of the parapet 100 from the upper part of the inner outer wall member 120 of the parapet 100 through the upper end of the parapet 100. The caps 150 that continuously cover up to the upper part of the outer external wall member 110 of the parapet 100, and the caps 150 are formed between the inner outer wall member 120 of the parapet 100 and the cap members 150. space and the first communication unit 141C which communicates the upper space 160 and building the outside is between the parapet 100, the para In the upper end face of Tsu DOO 100 is formed in a position adjacent to the outer external wall member 120, and a second communicating portion 143 for communicating the interior space of the upper space 160 and the parapet 100, the building The small attic space 20 provided in the lower layer of the land roof 10 of the building and the building through the first continuous portion 141C, the upper space 160, the second communication portion 143, and the inner space of the parapet 100 from the outside. wherein the ventilation passage communicating the object 1 outside Ru is formed.

  According to the present invention, the ventilation passage includes a space between the parapet 100 and the caps 150 and an internal space of the parapet 100, and communicates the back space 20 and the outside of the building 1. Yes. Thereby, a ventilation structure can be provided in the parapet 100 installed in advance on the peripheral portion of the land roof 10, and members such as the ventilation hardware 72 that has been conventionally used are not necessary. Therefore, since these ventilation hardware 72 can be made unnecessary, the number of parts can be reduced, and the cost can be reduced. In addition, a hole for connecting the ventilating hardware 72 in communication with the shed space is not required, and the waterproofing of the hole is not required. In addition, the gap at the upper end of the parapet 100 provided on the normal land roof 10 is used. Therefore, the ventilation structure can be easily formed without requiring labor and cost.

In the present invention, the between the upper and the coping 150 inner external wall material 120 of the parapet 100, said ventilation connection member 140 having a passage is provided on the connecting member 140, the front Stories upper portion It is preferable that the first continuous portion 141C that communicates the space and the outside of the building is provided.

  According to the present invention, the headboard 150 is provided continuously from the upper part of one side surface of the parapet 100 through the upper end portion to the upper part of the other side surface, and the upper part of the side surface of at least one of the parapets 100 and the side surface. The connecting member 140 that connects the opposing headboard 150 is provided, and the connecting member 140 is provided with a communication portion 141 </ b> C that connects the upper space 160 and the outside of the building 1. Accordingly, since the connecting member 140 between the headboard 150 and the side surface of the parapet 100 is also covered with the headboard 150, rainwater hardly enters the upper space 160 from the connecting member 140 and is waterproof. Can be improved.

Moreover, the parapet 100, this and the outer external wall material 110 and the threading member 130 provided to face the coping 150 between the inner external wall material 120 is provided in an underside of the threading member 130 comprising a, an inner wall material 111 and 121 to form a cavity 162 as a ventilation passage between the threading member 130, the inner space is arranged between the said through member 130 outside the external wall material 11 0 It is preferable to include the gaps 161 and 163 and the cavity 162.

  According to the present invention, the gaps 161 and 163 are provided between the through member 130 and at least one of the outer outer wall member 110 and the inner outer wall member 120, and the inner space constituting the ventilation passage. Includes the gaps 161 and 163 and the cavity 162. At this time, the gaps 161 and 163 do not need to be newly formed by a drilling operation or the like, and the gaps 161 and 163 that can be formed in the assembly process of the building between the through member 130 and the external wall members 110 and 120 are used. can do. Therefore, since it is not necessary to newly create the gaps 161 and 163 for ventilation, labor and cost for providing a ventilation structure can be reduced.

In the present invention, it is preferable that a plurality of slit holes 143 are provided in the first communication portion 141 </ b> C of the connecting member 140 along the longitudinal direction of the connecting member 140.

  According to the present invention, since the plurality of slit holes 143 are provided in the communication portion 141 </ b> C, the connecting member 140 allows ventilation between the outside of the building 1 and the upper space 160. Intrusion of water droplets such as rainwater can be prevented, and furthermore, the slit hole 143 can also prevent insects and small animals from entering. One slit hole 143 may be provided, or a plurality of the slit holes 143 may be provided in a stacked manner. Further, the shape of the slit hole 143 may be an oval shape, a lattice shape, or a net shape. By providing the net-like slit hole 143, it is possible to prevent intrusion of finer dust or small insects.

In the present invention, the connecting member 140 is provided with a drain piece.
According to the present invention, since the draining piece is provided on the connecting member 140, it is possible to prevent rainwater from entering even when a large amount of rainwater is directly blown onto the connecting member 140 due to strong winds or the like. Accordingly, the waterproof capability can be further enhanced.

At this time, the draining piece includes a first draining piece 441E extending obliquely downward from the headboard 150 side toward the side surface of the parapet 400 , and an inclination from the side surface side of the parapet 400 toward the headboard 150 side. A second draining piece 442B extending in the downward direction, and the first draining piece 441E and the second draining piece 442B are arranged at a predetermined distance from each other and the second draining piece 442B. The distance from the front end of the parapet 400 to which the connecting member 440 is attached is greater than the distance from the front end of the first draining piece 441E to the side of the parapet 400 to which the connecting member 440 is attached. It is preferable that the length is also longer .

  According to the present invention, the first draining piece 441E and the second draining piece 442B are arranged at a predetermined interval from each other, and the connecting member 440 is attached from the tip of the second draining piece 441E. The distance to the side surface of the parapet 400 is longer than the distance from the tip of the first draining piece 441E to the side surface of the parapet 400 to which the connecting member 440 is attached. Thereby, for example, even if rainwater is blown up by strong wind or the like, most of the rainwater hits the first draining piece 441E, and the remaining rainwater hits the second draining piece 442B, and the second draining piece 442B is inclined as it is. And it drains along the inclination of the 1st drain piece 441E. Accordingly, it is possible to suppress the intrusion of rainwater while keeping a predetermined interval that allows ventilation, and the waterproofness can be further improved.

In the present invention, it is preferable to provide a waterproof sheet on the surface of the through member 130 and the inner wall materials 111 and 121.
In the present invention, the surface of the through member 130 and the inner wall members 111 and 121 that are in contact with the upper space 160 and the gaps 161 and 163 is waterproofed. As a result, even when rainwater enters the upper space 160 and the gaps 161 and 163, or when water droplets enter the upper space due to water vapor or the like, these water droplets enter through the gap between the members, and the building 1 There is no intrusion. In addition, these water droplets become steam and become ventilated when the weather is fine. Therefore, the waterproofness of the ventilation structure can be further increased.

In the present invention, it is preferable that a seal member 151 is provided between the headboard 150 and the side surface of the parapet 100 and the connecting member 140.
According to the present invention, the seal member 151 is provided between the headboard 150 and the side surface of the parapet 100 and the connecting member 140. As a result, the upper space 160 and the outside of the building 1 are communicated only by the connecting member 140. Accordingly, it is possible to prevent intrusion of rainwater or the like between the headboard 150 and the parapet 100 where the connecting member 140 is not disposed or between the headboard 150 and the connecting member 140.

Here, in the present invention, it is preferable that the seal member 151 is provided at an end portion of the headboard 150 and extends toward the upper end portion of the parapet 100 along the side surface of the parapet 100 or along the connecting member 140. .
In the present invention, since the seal member 151 extends in the upper end direction of the parapet 100 along the side surface of the parapet 100 or along the connecting member 140, it is possible to reliably seal between the headboard 150 and the parapet 100. , It will also prevent Kasagi 150 from coming off. Therefore, the adhesion of the seal member 151 is improved, so that the waterproof property is improved, and the headboard 150 can be easily fixed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
1 to 3 show a ventilation structure of a building having a flat roof according to the first embodiment.
FIG. 1 is a perspective view of a cross section of a part of the building of the first embodiment. FIG. 2 is an enlarged cross-sectional view from the parapet of FIG. 1 to the cabin space. FIG. 3 is an enlarged cross-sectional view of the parapet portion of FIG.

  In FIG. 1, reference numeral 1 denotes a building having a flat roof 10. This building 1 is provided with a building main body on a base (not shown), and a land roof 10 is provided on the building main body. The building main body is provided with an indoor space 30 composed of a plurality of floors, and a cabin space 20 is formed between the indoor space 30 and the flat roof 10. In addition, this building 1 may be a unit type building or a panel type building in which each building unit or panel is manufactured and transported to the site at the factory, and assembly work is performed on the site, and materials are transported to the site. It may be a building constructed by conventional construction.

  The flat roof 10 includes a parapet 100 formed along an outer peripheral edge thereof and a rooftop 101 formed in a portion surrounded by the parapet 100. The rooftop 101 has a flat shape with a very small inclination. There is a waterproof layer (not shown) on the surface. As this waterproof layer, for example, asphalt waterproofing, sheet waterproofing, mortar waterproofing, and waterproofing of coating films are used. Further, the waterproof layer is not particularly provided, and it may depend on the waterproof property of the slab itself.

  A drainage groove 102 (see FIG. 2) is provided along the periphery of the rooftop 101. In FIG. 2, the drainage groove 102 is provided adjacent to the parapet 100, but may be formed at a predetermined distance. As for this drainage groove 102, the drain outlet etc. which are not illustrated are provided in the corner of the rooftop 101, for example. This drain outlet is connected to a fence (not shown) attached to the outer wall 11 of the building 1, thereby draining rainwater and the like on the rooftop 101 of the land roof 10. Moreover, although the rooftop 101 in 1st Embodiment is all formed flat, for example, the penthouse etc. which enable the entrance / exit of the back space 20 and the indoor space 30 and the rooftop 101 are provided. May be.

  As shown in FIGS. 2 and 3, the parapet 100 includes an inner outer wall member 120 formed by rising from the rooftop 101, an outer outer wall member 110 provided above the outer wall 11, and the outer outer wall member 110. And a through member 130 disposed between the inner external wall member 120, an auxiliary through member 131 that supports the through member 130, and abuts on the auxiliary through member 131 and is parallel to the outer outer wall member 110 and the inner outer wall member 120. The inner wall material 111 and the inner wall material 121 are provided. Further, a cap 150 is provided so as to cover the upper end of the parapet 100 and the upper ends of both side surfaces.

  The inner outer wall member 120 and the outer outer wall member 110 form both side surfaces of the parapet 100. The outer wall 11 and the outer outer wall material 110 are made of, for example, ALC (autoclave light concrete). The outer wall 11 and the outer outer wall material 110 are painted to form a waterproof layer on the surface. The inner outer wall member 120 is formed continuously with the flat roof 10, and the inner outer wall member 120 and the flat roof 10 are formed of ALC or the like. The inner outer wall member 120 may have a waterproof layer formed on the surface in the same manner as the rooftop 101.

  The through member 130 is disposed along the upper end portion of the parapet 100 with gaps 161 </ b> A and 163 </ b> A having a predetermined interval between the outer outer wall member 110 and the inner outer wall member 120. The through member 130 is usually made of wood, but is not limited thereto, and may be made of metal such as concrete or steel.

  The auxiliary threading member 131 is formed to be smaller in width than the threading member 130, and on both sides thereof, an outer inner wall material 111 is fixed on the outer outer wall material 110 side, and on the inner outer wall material 120 side. The inner wall material 121 is fixed. The threading member 130 is supported by the outer inner wall material 111, the inner inner wall material 121 and the auxiliary threading member 131.

  A gap 161 </ b> B is formed at a predetermined interval above an upper portion between the outer outer wall member 110 and the outer inner wall member 111. The gap 161 </ b> B communicates with a gap 161 </ b> A formed between the through member 130 and the outer outer wall material 110 to form a gap 161. Similarly, a gap 163B communicating with the gap 163A is provided between the inner inner wall member 121 and the inner outer wall member 120 to form the gap 163.

  A cavity 162 is formed between the outer inner wall member 111 and the inner inner wall member 121 below the auxiliary through member 131. A ventilation hole 113 is formed in the outer inner wall material 111, and the gap 161 and the cavity 162 communicate with each other through the ventilation hole 113. Note that the gaps 161 and 163 may be gaps generated in the assembling process of the parapet 100 and do not need to be formed by a drilling operation or the like.

  In addition, a waterproof sheet 133 is provided on the surface of the through member 130 and the outer inner wall member 111 so as not to enter the building 1 from the inside of the parapet 100 such as water droplets. In addition, the waterproof sheet 133 may be provided on the surface of the other inner wall member 121 or the like.

  The cap 150 is a member that continuously covers the upper portion of the inner outer wall member 120 of the parapet 100, the through member 130 at the upper end portion, and the upper portion of the outer outer wall member 110 of the parapet 100. The parapet 100 is formed, for example, by extruding a sheet metal such as aluminum, press molding, or extruding plastic. The outer surface of the headboard 150 is waterproofed by painting or the like. The headboard 150 is a connection provided between the headboard installation protrusion 153 provided on the surface opposite to the upper end surface of the threading member 130 and the end of the side surface of the inner outer wall member 120 of the headboard 150 and the inner outer wall member 120 of the parapet 100. A member 140 and a seal member 151 provided between the end portion of the headboard 150 and the outer external wall member 110 of the parapet 100 are provided.

  The headboard installation protrusions 153 are provided on the inner outer wall member 120 side and the outer outer wall member 110 side of the surface facing the upper end surface of the threading member 130. A claw-like protrusion is formed on the tip of the headboard installation protrusion 153 toward the outside. An engagement protrusion member 132 whose tip is a claw-shaped protrusion is provided on the upper end surface of the threading member 130, and the protrusion at the distal end of the engagement protrusion member 132 and the distal end of the headboard installation protrusion 153 are provided. The caps 150 are fixed to the parapet 100 by engaging with the protruding portions of the portions. By fixing the headboard 150 in this manner, an upper space 160 is formed between the headboard 150 and the parapet 100.

The connecting member 140 connects the inner surface side of the end portion on the inner outer wall member 120 side of the headboard 150 and the upper end portion of the inner outer wall member 120 of the parapet 100. The connecting member 140 is formed by extruding or press-molding a metal such as aluminum or stainless steel. The connecting member 140 is provided on the entire periphery of the land roof 10 along the parapet 100 and the headboard 150. The connection member 140 includes a first connection member 141 having a communication part 141C that is a first communication part of the present invention that allows communication between the outside of the building and the upper space 160, and the first external connection member 141 and the inner external wall member 120. And a second connecting member 142 fixed to the head.

  The first connecting member 141 includes a fixing portion 141A that is fixed to the threading member 130 by screwing or the like at the base end portion, and a horizontal portion that is formed substantially perpendicular to the fixing portion 141A and extends substantially horizontally toward the end portion of the headboard 150. 141B, a communication portion 141C that is refracted at a predetermined angle with respect to the horizontal portion 141B, a plurality of slit holes 143 are provided, a passage formation portion 141D that extends downward from the communication portion 141C, and a predetermined distance from the passage formation portion 141D. And a first draining piece 141E extending at an angle.

  The fixing portion 141A is fixed to the side surface of the through member 130 on the inner external wall material 120 side by, for example, screwing or an adhesive. For this fixing, various other fixing methods may be used, and the fixing position is not limited to the side surface of the through member 130 on the inner external wall member 120 side, but is, for example, the upper end surface of the through member 130. May be.

The horizontal portion 141B is formed by being bent substantially vertically from the fixed portion 141A and extending horizontally, and this horizontal portion 141B forms a space between the headboard 150 and becomes a part of the ventilation passage. The communication part 141C is provided with a plurality of slit holes 143 in the longitudinal direction. The slit hole 143 may have a substantially elliptical shape, and a net-like member may be provided in addition to the slit hole 143. The slit hole 143 allows communication between the upper space 160 and the outside of the building. Further, a face material 170 is provided on the upper end surface of the outer external wall material 110, and a slit hole 143 that is a second communication portion is formed in the face material 170.

  The passage forming portion 141D extends downward from the communication portion 141C, and a first draining piece 141E is formed at the end thereof.

  The second connecting member 142 is provided at one end and abuts a contact portion 142B that contacts the horizontal portion 141B of the first connecting member 141, a second draining piece 142D provided at the other end, and an intermediate portion thereof. A fixing portion 142A that is bent substantially perpendicularly from the contact portion 142B and fixed to the outer surface of the inner outer wall member 120, and a folded portion 142C that is folded back from the fixing portion 142A and extends upward.

  The contact portion 142B is in contact with the horizontal portion 141B and is fixed by, for example, welding. This prevents rainwater and the like from entering between the horizontal portion 141B and the contact portion 142B. The fixed portion 142A is in contact with the folded portion 142C on the cap 150 side. And these folding | returning part 142C and the fixing | fixed part 142A are being fixed to the inner side outer wall material 120 with the screw which penetrates the fixing | fixed part 142A from the coping 150 side of this folding | turning part 142C.

The second draining piece 142D is formed to extend obliquely downward from the end of the folded portion 142C toward the headboard 150 side. The first drain piece 141E and the second drain piece 142D described above prevent rainwater and the like from entering the connecting member 140. The second draining piece 142D and the first draining piece 141E are arranged with an interval of a predetermined dimension, and this interval becomes a part of the ventilation passage.
Further, in the case of typhoon or the like, when rain accompanied by strong wind is blown up from below the connecting member 140, the first draining piece 141E can prevent rainwater entering from the headboard 150 side, This draining piece 142D can prevent the intrusion of rainwater entering from the inner external wall material side. Even in this case, since the ventilation passage is secured, ventilation can be performed while preventing the intrusion of rainwater. Further, since the second draining piece 142D and the first draining piece 141E extend obliquely downward, the rainwater is drained along this slope.

  The seal member 151 is formed of an elastic member such as rubber or synthetic resin, for example. One end of the seal member 151 is fixed to the seal support portion 152 at the end of the headboard 150.

  The seal member 151 has a base end portion formed in a substantially circular cross section, and this circular portion is sandwiched and fixed by a seal support portion 152. The seal member 151 once extends downward from the seal support portion 152, extends upward so as to draw an arc, and is in contact with the outer external wall member 110. The seal member 151 is urged toward the outer outer wall member 110 by an elastic force and is in close contact with the outer outer wall member 110. Further, the seal member 151 extends upward by a predetermined dimension along the outer external wall member 110 (or the connecting member 140), thereby increasing the contact area and improving the waterproof property, and further preventing the headboard 150 from coming off. It is functioning as well.

  The ventilation structure of such a building 1 will be described. 1 to 3, the ventilation passage of the building 1 is indicated by an arrow. That is, the building 1 communicates from the outside air to the shed space 20 through the slit hole 143, the upper space 160, the gap 161, the ventilation hole 113, and the cavity 162 of the connecting member 140, and this is connected to the ventilation passage. It is said. The cabin space 20 and the indoor spaces 30 can be ventilated through gaps (not shown). This gap may utilize a gap generated in the building process of the building 1. By forming the attic space 20 that can be ventilated from the parapet 100 in this way, even if the attic space 20 is heated by direct sunlight, it can be ventilated easily from this ventilation passage, so the temperature of the attic space 20 is remarkably high. Will not go up.

  In addition, because of the draining pieces 141E and 142D and the slit hole 143, rainwater or the like is difficult to enter. Even if rainwater enters through the slit hole 143, the waterproof sheet 133 is provided on the surface of the through member 130 and the outer inner wall material 111, so that water droplets such as rainwater do not permeate. Since a portion provided with a waterproof sheet such as the upper end surface of the threading member 130 serves as a ventilation passage, even if water drops enter and water accumulates there, it will be evaporated and ventilated in fine weather. So moisture does not accumulate.

According to the first embodiment, the following effects can be obtained.
(1) The ventilation passage of the building 1 includes an upper space 160 between the parapet 100 and the caps 150, a gap 161 and a cavity 162 that are the internal space of the parapet 100, and the exterior space 20 and the outside of the building. And communicate with. As a result, the parapet 100 can be provided with a ventilation structure, and a member such as a conventionally used ventilation hardware is not required, and a hole provided for attaching these ventilation hardware is also unnecessary. Therefore, since these ventilated hardware can be made unnecessary, the number of parts can be reduced, the cost can be reduced, and the labor during operation can be saved. Further, since the ventilation structure is easily provided using the gap at the upper end portion of the parapet 100 provided on the ordinary flat roof 10, it is possible to easily form the ventilation structure without taking time and cost.

(2) The headboard 150 is provided continuously from the upper part of the inner outer wall member 120 of the parapet 100 to the upper part of the outer outer wall member 110 through the upper end, and the upper part and inner outer wall of the inner outer wall member 120 of the parapet 100. A connecting member 140 is provided to connect the material 120 and the end of the headboard 150 facing the material 120, and a connecting portion 141C is provided on the connecting member 140 to connect the upper space 160 and the outside of the building. As a result, the connecting member 140 is also covered with the cap 150, so that rainwater is less likely to enter from the communication portion 141C, and waterproofing can be improved.

(3) The gap 161 provided between the threading member 130 and the outer inner wall material 111 and the outer outer wall material 110 does not need to be newly formed by drilling or the like, and in the process of assembling the parapet, A gap formed between the external wall material 110 and the external wall material 110 can be used. Therefore, since it is not necessary to create a new gap for ventilation, it is possible to reduce labor and cost for providing a ventilation structure.

(4) Since the plurality of slit holes 143 are provided in the communication portion 141C, the connecting member 140 allows ventilation between the outside of the building and the upper space 160 and allows water droplets such as rainwater to enter. Furthermore, the slit hole 143 can also prevent insects and small animals from entering.

(5) The draining pieces 141E and 142D are provided on the connecting member 140 in addition to the slit hole 143. Accordingly, even when a large amount of rainwater is directly blown onto the communication part due to strong winds or the like, intrusion of rainwater can be prevented. Accordingly, the waterproof capability can be further enhanced.

(6) A waterproof sheet 133 is provided on the surface of the through member 130 and the outer inner wall member 111 that are in contact with the upper space 160 and the gap 161. As a result, even when rainwater enters through the draining pieces 141E and 142D and the slit hole 143, or when water droplets enter the upper space 160 due to water vapor or the like, these water droplets enter from the gap between the members. There is no intrusion into the building. In addition, these water droplets become steam and become ventilated when the weather is fine. Therefore, the waterproofness of the ventilation structure can be further increased.

(7) Since the seal member 151 extends in the upper end direction of the parapet 100 along the outer external wall material 110 of the parapet 100, the seal 150 can be reliably sealed between the parapet 100 and the parapet 100, and the cap 150 can be prevented from coming off. It also becomes. Therefore, the adhesion of the seal member 151 is improved, so that the waterproof property is improved, and the headboard 150 can be easily fixed.

(8) The connecting member 140 connects the inner outer wall member 120 of the parapet 100 and the headboard 150, and the upper space 160 and the outside of the building are connected by the communication portion 141C of the connecting member 140. Accordingly, the connecting member 140 including the communication portion 141C is provided on the inner side of the flat roof 10, and the rooftop 101 of the flat roof 10 is present even when rain with strong wind blows. Compared to when attached to the rainwater, it is difficult for rainwater to enter the connecting member 140.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view of the second embodiment. Note that the same or similar components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified.
In FIG. 4, the parapet 400 includes an outer external wall member 110 provided at the upper end of the outer wall 11, a through member 130 of the parapet 400, and an auxiliary through member 131 and an outer inner wall member 411 below the through member 130. is doing. The parapet 400 does not have an inner external wall material, and instead a vinyl chloride sheet is stretched on the surface. A cap 150 is provided so as to cover the upper end of the parapet 400 and the upper portion of the side surface.

  A waterproof layer 423 such as a vinyl chloride sheet is provided on the inner top wall 121 of the parapet 400 and the rooftop 101 side of the through member 130 to prevent permeation of rainwater or the like. A connecting member 440 is attached to the top of the parapet 400 from above the waterproof layer 423 via a waterproof sheet (not shown) such as butyl tape. The cap member 150 and the parapet 400 are connected by the connecting member 440.

  The connection member 440 includes a first connection member 441 having a communication portion 441C that communicates the upper space 160 with the outside of the building, and a second connection piece 441 that contacts the first connection member 441 to form a second drain piece. And a connecting member 442. These connecting members 440 are formed by extruding or press-molding a metallic member such as aluminum or stainless steel in the same manner as the connecting member 140 of the first embodiment. It is provided in the whole periphery.

  The first connecting member 441 includes a fixing portion 441A formed at the base end portion, a communication portion 441C formed from the end portion of the fixing portion 441A, a passage forming portion 441D extending upward from the communication portion 441C, and a passage forming portion. And a first draining piece 441E provided at the tip of 441D. The fixing portion 441A is provided with a screw hole (not shown) for fixing to the threading member 130, and is screwed to the threading member 130 through the screw hole. Further, since the sheet member such as butyl rubber is provided between the connecting member 440 and the through member as described above, water does not enter from the screw hole.

  The communication portion 441C is formed to be substantially vertical and substantially horizontal with respect to the fixed portion 441A. The communication portion 441C includes a plurality of slit holes 443, and the upper space 160 communicates with the outside of the building through the slit holes 443. The shape and size of the slit hole 443 are not particularly limited. For example, the slit hole 443 may be a large substantially oval shape or a very fine mesh shape. Further, a fine mesh or the like may be disposed on the surface of the communication portion 441C where the slit hole 443 is provided.

  The passage forming portion 441D is formed substantially vertically upward from the communication portion 441C and facing the side surface of the parapet 400. The space between the passage forming portion 441D parapet 400 communicates with the upper space 160 and becomes a part of the ventilation passage.

  A first draining piece 441E extends obliquely downward from the end of the passage forming portion 441D toward the side surface of the parapet 400.

  The second connecting member 442 includes a fixing portion 442A that is fixed to the threading member 130 and a second draining piece 442B that is formed from an end portion of the fixing portion 442A. The fixing portion 442A is provided with a screw hole (not shown) in the through member 130 as in the fixing portion 441A of the first connection member 441. And it fixes to the side surface of the threading member 130 by screwing etc. from this screw hole.

  The second draining piece 442B is formed to extend obliquely downward at a predetermined angle from the fixed portion 442A toward the headboard 150. The second draining piece 442B prevents water from entering the upper space from the connecting member 440 together with the first draining piece 441E described above. These draining pieces 441E and 442B are provided above the communication portion 441C, and rain water and the like that have passed through the slit holes of the communication portion 441C hit the draining pieces 441E and 442B and are discharged. Further, if the distance from the tip of the first draining piece 441E to the side surface of the parapet 400 is a distance L1, and the distance from the tip of the second draining piece 442B to the side of the parapet 400 is a distance L2, the distance L1. The draining pieces 441E and 442B are formed so as to be shorter than the distance L2. Therefore, the ventilation passage in the connecting member 440 is refracted as shown by the arrow in FIG. 4 and has a structure in which rainwater or the like is difficult to enter.

  Such a ventilation passage in the ventilation structure of the parapet 400 is also performed in the same manner as in the first embodiment. That is, the cabin space 20 and the outside of the building are communicated and ventilated through a ventilation passage that passes through the slit hole 443 of the communication portion 441C of the connecting member 440, the upper space 160, the gap 161, and the cavity 162.

In the ventilation passage of the building 1 of the second embodiment, the following effects are obtained in addition to the replacement of (1) to (8) obtained in the first embodiment.
(9) The distance from the tip of the second draining piece 442B to the side surface of the parapet 400 to which the connecting member 440 is attached while the first draining piece 441E and the second draining piece 442B are arranged at predetermined intervals. L2 becomes longer than the distance from the front-end | tip part of the 1st drain piece 441E to the side surface of the parapet 400 to which the connection member 440 is attached. Thereby, for example, even if rainwater is blown up by strong wind or the like, most of the rainwater hits the first draining piece 441E, and the remaining rainwater hits the second draining piece 442B, and the second draining piece 442B is inclined as it is. And it drains along the inclination of the 1st drain piece 441E. Accordingly, it is possible to suppress the intrusion of rainwater while keeping a predetermined interval that allows ventilation, and the waterproofness can be further improved.
(10) Since both the first connecting member 441 and the second connecting member 442 are fixed to the side surface portion of the member by screwing, the ventilation structure can be easily formed even in the parapet 400 having a structure without the inner external wall member 120. It can be attached and the assemblability can be improved.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the first and second embodiments, the connection members 140 and 440 are provided on the inner outer wall member 120 side or the inner inner wall member 121 side, but the present invention is not limited to this. For example, the connecting members 140 and 440 may be provided between the outer outer wall member 110 and the headboard 150, and are provided on both the outer outer wall member 110 side and the inner outer wall member 120 side. May be. Thus, when it is set as the structure which provided the connection member 140 in both the outer side outer wall material 110 side and the inner side outer wall material 120 side, the ventilation capacity of the cabin back space 20 can be improved further. However, when the connecting member is provided on the outer wall side, rainwater may be directly blown into the upper space 160 when raining with a strong wind. On the other hand, when the connecting members 140 and 440 are provided only on the inner outer wall member 120 side, wind and rain momentum can be suppressed to some extent on the rooftop 101 of the flat roof 10, so that the influence of strong winds and the like can be reduced. And the intrusion of rainwater or the like into the upper space 160 can be suppressed.

  In the first embodiment, the gap 161 between the outer inner wall member 111 and the outer outer wall member 110 is used as a ventilation passage. However, the present invention is not limited to this. For example, the passage member 130 and the gap 163 between the inner inner wall member 121 and the inner outer wall member 120 may be used as a ventilation passage, and both of the gaps 161 and 163 may be used as a ventilation passage. Thus, when both the clearances 161 and 163 are used as a ventilation passage, a wide ventilation passage can be secured, so that the ventilation capacity can be improved. However, since the gap 163 between the inner outer wall member 120 and the through member 130 and the inner inner wall member 121 is closer to the connecting member 140 provided on the inner outer wall member 120 side, water droplets or the like can also enter there. There is a possibility of increasing. On the other hand, when the gap 161 is provided on the outer external wall member 110 side, the distance from the connecting member 140 is increased, and even if water droplets or the like enter through the connecting member 140, they fall on the waterproof sheet on the through member 130. As a result, water drops do not enter the parapet.

  In the first and second embodiments, the ventilation structure for ventilating from the upper end of the parapet is shown, but in addition to this, the conventional ventilation hardware (see FIG. 5) is added to the outer periphery of the building. There may be. Such a structure eliminates the need for many ventilated hardware as in the prior art, and further allows ventilation from the upper end of the parapet and the ventilated hardware, thereby improving the ventilation capacity.

  In the first and second embodiments, the face material 170 having the slit hole 143 is provided on the upper surface of the through member 130, but the present invention is not limited to this. For example, the structure which provided the net | network member etc. in the clearance gap 161 may be sufficient. By doing in this way, if a mesh finer than the slit hole 143 is used, invasion of a small animal from the gap can be further prevented.

  The present invention can be used for the above-described building having a flat roof, and in addition to a building having a flat roof structure or a building having a gently sloping roof, a building having a parapet at the periphery or inside of the roof. Is available.

It is the perspective view which sectioned a part of building concerning a first embodiment of the present invention. It is an enlarged view when the parapet of the building of a 1st embodiment is sectioned. It is an expanded sectional view of the upper part of the parapet of the building of a first embodiment. It is an expanded sectional view of the upper part of the parapet of the building of a second embodiment of the present invention. It is a whole perspective view which shows the ventilation structure of the conventional building.

Explanation of symbols

1 ... A building.
10 ... a flat roof.
11 ... Outer wall.
20 ... Shut space.
100 ... Parapet.
110 ... Outer external wall material.
111 ... Outside inner wall material.
113 ... Ventilation hole.
120 ... Inner external wall material.
121 ... Inner inner wall material.
130... Through member.
133 ... Waterproof sheet.
140,440 ... connecting members.
141C, 441C ... Communication part.
141E, 441E ... First draining piece.
142D, 442B ... Second draining piece.
160: Upper space.
161: A gap.
162 ... Cavity

Claims (9)

In a building with a flat roof with a parapet on the periphery,
The parapet has an outer outer wall material provided on the outer side of the flat roof, and an inner outer wall material provided in the inner direction of the flat roof,
A headboard that continuously covers the upper part of the parapet from the upper part of the inner outer wall member of the parapet through the upper end of the parapet to the upper part of the outer outer wall member of the parapet.
A first communication part that is formed between the inner external wall material of the parapet and the headboard and communicates with the upper space that is a space between the headboard and the parapet and the outside of the building;
The upper end surface of the parapet is formed at a position adjacent to the outer external wall material, and includes a second communication portion that communicates the upper space and the internal space of the parapet,
A small attic space provided in the lower layer of the land roof of the building, and the exterior of the building through the first series of communication sections, the upper space, the second communication section and the internal space of the parapet from the outside of the building A ventilation structure for buildings, characterized by the formation of a ventilation passage that communicates with each other. In the ventilation structure of the building of Claim 1,
A connection member having the ventilation passage is provided between the upper part of the inner outer wall material of the parapet and the headboard,
Ventilation structure of this the coupling member, Buildings and wherein the first communicating portion for communicating the outside of the front SL upper portion space and the building is provided. In the building ventilation structure according to claim 1 or 2,
The parapet is
A through member provided to face the coping between said inner external wall material and the outer external wall material,
An internal wall member provided below the through member and forming a cavity serving as a ventilation passage with the through member;
With
The internal space includes a gap provided between the through member and the outer external wall material and the cavity. A ventilation structure for a building according to the present invention. In the ventilation structure of the building of Claim 2 or Claim 3,
A ventilation structure for a building, wherein a plurality of slit holes are provided along the longitudinal direction of the connecting member in the first continuous portion of the connecting member. In the ventilation structure of the building in any one of Claims 2-4,
A ventilation structure for a building, wherein the connecting member is provided with a draining piece. In the building ventilation structure according to claim 5,
The draining piece includes a first draining piece extending obliquely downward from the headboard side toward the side surface of the parapet, and a second draining piece extending obliquely downward from the side surface side of the parapet toward the headboard side. And having a piece,
The first drainer and the second drainer are arranged at a predetermined distance from each other, and the distance from the tip of the second drainer piece to the side surface of the parapet where the connecting member is attached, The building ventilation structure characterized by being longer than the distance from the tip of the first draining piece to the side surface of the parapet to which the connecting member is attached. In the ventilation structure of the building in any one of Claims 3-6,
A ventilation structure for a building, wherein a waterproof sheet is provided on the surface of the through member and the inner wall material. In the ventilation structure of the parapet according to claim 2 to claim 7,
A building ventilation structure, wherein a seal member is provided between the headboard, a side surface of the parapet, and the connecting member. The building ventilation structure according to claim 8,
The said ventilation member is provided in the edge part of the said headboard, and is extended toward the upper end part of a parapet along the side surface or the said connection member of the said parapet. The ventilation structure of a building characterized by the above-mentioned.

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