JP6250347B2 - Parapet top end ventilation structure - Google Patents

Description

  The present invention relates to a parapet top end ventilation structure including an outer wall panel having a ventilation layer rising from an edge of an outdoor floor such as a flat roof or a balcony of a building, and a headboard covered along the top end surface of the outer wall panel.

  When the top end of the outer wall is a parapet, there is a space to cover the headboard made of aluminum or the like. It is common for the headboard of the top of the outer wall to have an open design that allows water and air to pass through the headboard, but there is a ventilation layer on the outer wall, and when the exit is provided near the headboard, In general, it is a closed design that does not allow water to enter the headboard, and consideration is given to preventing rainwater from entering the vents from the outside.

JP 2011-127340 A JP2012-193609A

When rainwater overflows from the top of a parapet on the rooftop or veranda, a waterproof sheet is included to prevent rainwater from entering, but the ventilation layer on the outer wall is also blocked, so there is a problem of how to remove air. With respect to this problem, Patent Document 1 vents a waterproof sheet by providing a hole. However, rainwater cannot be reliably waterproofed with this structure.
Moreover, when providing the ventilation | gas_flowing exit, there exists a possibility of becoming an entrance of rainwater, and it is necessary to ensure sufficient waterproof performance. For this reason, there is a problem that the designability is impaired, for example, the finding size of the headboard is increased in order to ensure the covering size on the outer wall of the headboard. When the headboard is closed, there is a problem that water leaks from the joint due to expansion and contraction because aluminum has a large linear expansion coefficient.

  It is an object of the present invention to provide a parapet top end ventilation structure that allows water and air to pass between both front and back surfaces of the outer wall panel without causing water leakage into the ventilation layer of the outer wall panel.

The ventilation structure of the top end of the parapet according to the present invention has an outer wall panel that rises from the edge of the outdoor floor and has a ventilation layer inside, and is covered along the top end surface of the outer wall panel between the front and rear surfaces of the outer wall. A parapet top end ventilation structure comprising water and air through which the headboard can pass, and a waterproof sheet that covers the outer wall panel from the side of the outdoor floor to the top end surface and communicates with the ventilation layer A base plate having a communication opening that communicates the vent layer and the vent opening on the top end surface of the outer wall panel below the waterproof sheet, and is provided on the base plate inside the headboard. A waterproof accessory is installed through the waterproof sheet. The waterproof accessory has a bottom plate portion formed with a ventilation opening communicating with the ventilation opening of the waterproof sheet and fixed on the waterproof sheet, and a rising portion rising from the bottom plate portion around the ventilation opening.
In addition, even if the part above an outdoor floor among the outer wall panels comprises the parapet, the whole outer wall panel may be a parapet. In this specification, “outer wall panel” is used to mean including a parapet.

According to this configuration, the air in the ventilation layer of the outer wall panel passes through the opening of the base plate, the ventilation opening of the waterproof sheet, the ventilation opening of the waterproofing agent, and reaches the ventilation path inside the headboard. To be discharged. In addition, even if rainwater overflows from the outdoor floor and enters the ventilation path inside the headboard, the waterproofing agent prevents the rainwater from entering the ventilation layer of the outer wall panel. In other words, since the waterproofing member has a rising portion around the bottom plate portion in which the ventilation opening communicating with the ventilation layer of the outer wall panel is formed, rainwater can enter the ventilation opening while allowing ventilation. Can be blocked. In addition, since the outer wall panel is covered with a waterproof sheet from the side of the outdoor floor side to the top end surface, even if rainwater enters the ventilation path inside the headboard from the outdoor floor side, The panel can be prevented from getting wet.
Thus, the parapet top end ventilation structure that allows water and air to pass between both surfaces of the outer wall panel without causing leakage of water into the ventilation layer of the outer wall panel.

  In the present invention, the waterproof accessory may have a ceiling surface portion provided on the rising portion and covering the ventilation opening. In this case, it is possible to more reliably prevent rainwater from entering the ventilation opening while allowing ventilation.

In the present invention, the rising portion of the waterproof accessory has four standing plate portions around the ventilation opening, and only one standing plate portion located on the anti-outdoor floor side is the other three. It is good also as what ventilates in the clearance gap between the upper end of this low standing board part, and the said ceiling surface part, which is lower than a standing board part.
Anti-outdoor floor side standing plate part is made lower and air is vented from above, the other three standing plate parts are high, and the ceiling surface part covers the space above the waterproofing part Therefore, when rainwater overflows from the outdoor floor and flows through the ventilation path in the headboard, the rainwater is prevented from entering the ventilation layer of the outer wall panel through the ventilation gap.

In the present invention, the rising portion of the waterproof accessory is provided with standing plate portions in three directions except for one on the anti-outdoor floor side among the four directions around the ventilation opening, It is good also as what ventilates by the clearance gap between a baseplate part and the said ceiling surface part.
Also in this configuration, three sides except the one on the anti-outdoor floor side are high in the standing plate part, and the upper part of the space in the waterproofing feature is covered with the ceiling surface part. When overflowing and flowing through the ventilation path in the headboard, the rainwater is prevented from entering the ventilation layer of the outer wall panel through the ventilation gap.

In the present invention, as one of the rising portions of the waterproofing member, it is assumed that at both ends in the width direction of the outer wall panel, there are slanted fin portions that are laterally separated from the outdoor floor side to the anti-outdoor floor side. Also good.
As described above, when the slanted fin portion is added as the rising portion of the waterproofing material, even if rainwater flows into the waterproofing material by intruding into the ventilation path inside the headboard from the outdoor floor side, Since rainwater separates from the waterproofing member in the width direction of the outer wall panel by the guide action, it is possible to more reliably prevent rainwater from entering the ventilation layer of the outer wall panel.

In this invention, both the standing plate part and the ceiling surface part located at both ends in the width direction of the outer wall panel in the rising part of the waterproofing member are extended to the side opposite to the outdoor floor from the ventilation opening. Also good.
In the case of this configuration, since the standing plate portion and the like extend to the outdoor floor side more than the ventilation opening, rainwater that has entered the ventilation path inside the headboard from the outdoor floor side is directed to the ventilation opening of the waterproof accessory. It is difficult to flow around and the rainwater can be more reliably prevented from entering the ventilation layer of the outer wall panel.

  In the present invention, the rising portion of the waterproof accessory may include one or more partition plate portions between the standing plate portions at both ends in the outer wall panel width direction. The presence of this partition plate makes it more difficult for rainwater that has entered the ventilation path inside the headboard from the outdoor floor side to flow in the reverse direction to the ventilation opening of the waterproofing material, and to prevent the outer wall panel from flowing. It is possible to more reliably prevent rainwater from entering the ventilation layer.

  The ventilation structure of the top end of the parapet according to the present invention has an outer wall panel that rises from the edge of the outdoor floor and has a ventilation layer inside, and is covered along the top end surface of the outer wall panel between the front and rear surfaces of the outer wall. A parapet top end ventilation structure comprising water and air through which the headboard can pass, and a waterproof sheet that covers the outer wall panel from the side of the outdoor floor to the top end surface and communicates with the ventilation layer A base plate having a communication opening that communicates the vent layer and the vent opening on the top end surface of the outer wall panel below the waterproof sheet, and is provided on the base plate inside the headboard. A waterproofing member is installed through the waterproof sheet, and the waterproofing member includes a bottom plate portion that is formed with a ventilation opening communicating with the ventilation opening of the waterproof sheet and is fixed on the waterproof sheet, and a periphery of the ventilation opening. so Because it has a rising part that rises from the bottom plate part, there is no water leakage into the ventilation layer of the outer wall panel, and a parapet top ventilation structure that allows water and air to pass between both sides of the outer wall panel. be able to.

It is a longitudinal cross-sectional view which shows the ventilation structure of the parapet top end concerning 1st Embodiment of this invention. It is a top view of the waterproofing thing in the ventilation structure of the parapet top end. It is a partial exploded perspective view of the ventilation structure of the parapet top end. It is a fragmentary perspective view of the ventilation structure of the parapet top end. It is a front view which shows the outline | summary of the outer wall to which the ventilation structure of the parapet top end is applied. It is a perspective view which shows the outer wall panel top end part of the ventilation structure of the same parapet top end. It is the perspective view which looked at the other structural example of the waterproofing accessory from the front side. (A) is the perspective view which looked at the waterproofing accessory from the side, (B) is the perspective view which fractures | ruptures and shows a part of the waterproofing accessory. It is a top view of the waterproofing accessory. It is the perspective view which looked at the other structural example of the waterproofing accessory from the front side. It is the perspective view which looked at the waterproofing accessory from the side. It is the perspective view which looked at the other structural example of the waterproofing accessory from the front side. (A) is a top view which shows the further another structural example of a waterproof accessory, (B) is the longitudinal cross-sectional view.

  A first embodiment of the present invention will be described with reference to FIGS. As shown in the longitudinal sectional view of FIG. 1, the parapet top end ventilation structure includes an outer wall panel 2 having a ventilation layer 2 a rising from an edge of an outdoor floor 1 such as a flat roof or a balcony of a building, and the outer wall panel 2. And a headboard 3 that constitutes a ventilation path 11 that is covered along the top end surface of the outer wall and allows passage of water and air between the front and back surfaces of the outer wall. The building may be a house such as a detached house or another building. The outer wall panel 2 includes a panel frame 4 made of lightweight channel steel, etc., base materials 5 and 6 made of plywood and the like disposed on both sides of the panel frame 4, and the side opposite to the outdoor floor 1 side of the panel frame 4 An exterior surface material 7 stretched through the base material 5 (on the side opposite to the outdoor floor) and a back side surface material 7A stretched through the base material 6 on the outdoor floor 1 side of the panel frame 4 are provided. The base materials 5 and 6 are in the shape of a long and narrow plate extending along each frame material of the panel frame 4. The space on the inner peripheral side of the panel frame 4 is filled with a heat insulating material (not shown). The ventilation layer 2 a is interposed between the exterior surface material 7 and the panel frame 4, and the ventilation device 2 a is open to the top end surface of the outer wall panel 2. The headboard 3 is made of an aluminum molded product or the like.

  As shown in an exploded perspective view in FIG. 3, a base plate 8 made of a PVC steel plate having a communication opening 8a that opens along the ventilation layer 2a is provided on the top end surface of the outer wall panel 2 in the longitudinal direction of the top end surface. Provided in part. A plurality of communication openings 8 a are formed side by side in the longitudinal direction of the base plate 8. A flange portion 8 b that extends downward is formed at the end of the base plate 8 on the side opposite to the outdoor floor, and this flange portion 8 b is pressed against the exterior surface material 7 of the outer wall panel 2. The outer wall panel 2 is covered with a waterproof sheet 9 from the side surface on the outdoor floor 1 side to the upper surface of the base plate 8 on the top end surface. In this example, the waterproof sheet 9 extends integrally from a portion covering the upper surface of the outdoor floor. The waterproof sheet 9 is provided with a ventilation opening 9 a that communicates with the communication opening 8 a of the base plate 8 in alignment with the ventilation layer 2 a of the outer wall panel 2. That is, the communication opening 8 a of the base plate 8 allows the ventilation layer 2 a of the outer wall panel 2 and the ventilation opening 9 a of the waterproof sheet 9 to communicate with each other.

  Inside the headboard 3 in FIG. 1, a waterproof accessory 10 is installed on the base plate 8 via the waterproof sheet 9. FIG. 4 is a perspective view showing the installation state of the waterproof accessory 10. As shown in a plan view in FIG. 2, the waterproof accessory 10 includes a horizontal plate-like bottom plate portion 10 b fixed on the waterproof sheet 9 by adhesion or the like, and the bottom plate around the ventilation opening 9 a of the waterproof sheet 9. A rising portion 10c rising from the portion 10b, and a horizontal plate-like ceiling surface portion 10d provided on the rising portion 10c and covering the ventilation opening 9a of the waterproof sheet 9, and the bottom plate portion 10b includes the waterproof sheet 9 A ventilation opening 10a that overlaps with the ventilation opening 9a is formed.

  The rising portion 10c of the waterproof accessory 10 has four plate-like standing plate portions 10ca, 10cb, 10cc around the ventilation opening 10a, and only one standing plate portion 10ca located on the anti-outdoor floor side is provided. It is lower than the other three standing plate portions 10cb and 10cc, and ventilation is performed in the gap between the lower end of the standing plate portion 10ca and the ceiling surface portion 10d. The rising portion 10c of the waterproof accessory 10 has one or a plurality of (two in this case) partition plate portions 10cd between the standing plate portions 10cb at both ends in the width direction of the outer wall panel 2.

  Here, both end portions of the lower standing plate portion 10ca are bent in an L shape along the ventilation opening 10a, and the inner standing plate portion parallel to the standing plate portion 10cb at both ends in the width direction of the outer wall panel 2 However, both ends of the lower standing plate portion 10ca may be formed to extend to the standing plate portions 10cb at both ends in the width direction of the outer wall panel 2. As shown in a plan view in FIG. 2, the standing plate portion 10 cb and the ceiling surface portion 10 d located at both ends in the width direction of the outer wall panel 2 in the rising portion 10 c of the waterproof accessory 10 are both more than the ventilation opening 10 a. It extends to the anti-outdoor floor side. In addition, a flange portion 10da extending upward as shown in FIG. 1 is formed at the end of the ceiling surface portion 10d on the side opposite to the outdoor floor so that rainwater adhering to the upper surface of the ceiling surface portion 10d reaches the lower surface of the ceiling surface portion 10d. The flange portion 10da is used for blocking.

  On the base plate 8 at the top end of the outer wall panel 2, the waterproofing member 10 is installed via the waterproof sheet 9, and as shown in FIG. 13 is installed. The top 3 is supported by the top 12 to cover the top end of the outer wall panel 2. Further, the design outer wall column 14 is supported on the base plate 8 at the top end of the outer wall panel 2 by the waterproofing member 13 for the design outer wall column. One or a plurality of waterproofing objects 10 are installed for each outer wall panel 2. FIG. 5 is a schematic front view showing a state in which one waterproof accessory 10 is installed on each of the outer wall panels 2 arranged in a plurality. FIG. 6 is a perspective view showing a state in which the waterproof accessory 10 and the headboard holder 12 are alternately arranged at the top end of the plurality of outer wall panels 2 arranged in a row.

  As shown in FIG. 1, the headboard 3 has portions 3 a and 3 b that project from both front and rear sides of the outer wall panel 2. The overhanging portion 3a on the front side of the headboard 3, that is, the anti-outdoor floor side, is formed in an L-shaped cross section that is bent downward, and extends to the top end side of the outer wall panel 2 at its lower end. A blow-up preventing material 15 that is pressed against is attached. The blow-up prevention member 15 closes the anti-outdoor floor side of the ventilation path 11 formed between the top end surface of the outer wall panel 2 and the headboard 3 so that the blown-up air enters the ventilation path 11. It is a flap-shaped member to block. The overhanging portion 3b on the rear side of the headboard 3, that is, on the outdoor floor 1 side, is formed in an L-shaped cross section that is bent downward, and the air passage 11 is open to the outdoor floor 1 side.

  According to the ventilation structure of the top end of the parapet of this configuration, the air in the ventilation layer 2a of the outer wall panel 2 passes through the communication opening 8a of the base plate 8, the ventilation opening 9a of the waterproof sheet 9, and the ventilation opening 10a of the waterproof accessory 10 and the headboard 3 reaches the inside air passage 11 and is discharged to the outdoor floor 1 side. Further, even if rainwater overflows from the outdoor floor 1 side and enters the ventilation path 11 inside the headboard 3, the waterproofing member 10 prevents the rainwater from entering the ventilation layer 2a of the outer wall panel 2. That is, in the waterproof accessory 10, a rising portion 10c is provided around a bottom plate portion 10b in which a ventilation opening 10a communicating with the ventilation layer 2a is formed, and the rising portion 10c has a ceiling covering the upper side of the ventilation opening 10a. Since the surface portion 10d is provided, it is possible to prevent rainwater from entering the ventilation opening 10a. Further, since the outer wall panel 2 is covered with the waterproof sheet 9 from the side surface on the outdoor floor 1 side to the top end surface, even if rainwater enters from the outdoor floor 1 side into the air passage 11 inside the headboard 3, It is possible to prevent the outer wall panel 2 from getting wet by rainwater that has entered.

Among the four standing plate portions 10ca, 10cb, 10cc constituting the rising portion 10c, the standing plate portion 10ca facing the anti-outdoor floor is lower than the other standing plate portions 10cb, 10cc. The air in the ventilation layer 2a of the outer wall panel 2 can be discharged to the ventilation path 11 of the headboard 3 from the gap between the standing plate portion 10ca and the ceiling surface portion 10d.
Further, in this embodiment, the standing plate portion 10cb and the ceiling surface portion 10d located at both ends in the width direction of the outer wall panel 2 in the rising portion 10c of the waterproof accessory 10 are more anti-outdoor floor than the ventilation opening 10a of the bottom plate portion 10b. The rainwater that has entered the ventilation path 11 inside the headboard 3 from the outdoor floor 1 side is blocked by the standing plate portion 10cb and the ceiling surface portion 10d and approaches the ventilation opening 10a of the bottom plate portion 10b. It is difficult to prevent rainwater from entering the ventilation layer 2a of the outer wall panel 2 more reliably.

Even if rainwater enters the ventilation path 11 beyond the blowing-up preventing material 15 together with the blowing-up air, the function of the waterproofing member 10 causes the rainwater to enter the ventilation layer 2a of the outer wall panel 2. It is also possible to prevent the intrusion of rainwater due to the blowing up.
Therefore, according to the ventilation structure of the top end of the parapet, there is no leakage into the ventilation layer 2a of the outer wall panel 2, and the ventilation structure allows the passage of water and air between both surfaces of the outer wall panel 2. be able to.

  7 to 9 show another configuration example of the waterproof accessory 10. In this configuration example, in addition to the above-described standing plate portions 10ca, 10cb, 10cc, and the partition plate portion 10cd, the rising portion 10c extends from the outdoor floor 1 side to the anti-outdoor floor side at both ends in the width direction of the outer wall panel 2. The slanted fin part 10ce which leaves | separates to the side as it reaches. The height of the fin portion 10ce is the same height as the upright plate portions 10cb located at both ends of the outer wall panel 2 in the width direction. Other configurations are the same as those of the waterproof accessory 10 shown in FIGS. FIG. 8B shows a perspective view in which a part of the waterproof accessory 10 shown in FIG.

  As described above, when the oblique fin portion 10ce is added as the rising portion 10c of the waterproof accessory 10, rainwater enters the air passage 11 inside the headboard 3 from the outdoor floor 1 side and approaches the waterproof accessory 10. Even when the fin portion 10ce is guided, rainwater separates from the waterproofing member 10 in the width direction of the outer wall panel 2 as shown by arrows in FIGS. 8A and 9, and the fin portion By shielding with 10ce, it is possible to reduce the intrusion of air and rainwater from the anti-outdoor floor side into the inside of the waterproofing material 10 itself, so that the intrusion of rainwater into the ventilation layer 2a of the outer wall panel 2 can be further reduced. It can be reliably prevented.

  10 and 11 show still another configuration example of the waterproof accessory 10. This configuration example is the configuration example shown in FIGS. 7 to 9 in which the height of the fin portion 10ce is lower than that of the upright plate portion 10cb, and other configurations are the same as those shown in FIGS. It is the same. In this case, although the guide action for guiding rainwater to the extent that the fin portion 10ce is low is somewhat inferior, it is the same that rainwater moves away from the waterproofing object 10 in the width direction of the outer wall panel 2, and the waterproofing object 10 It is possible to increase the action of discharging air that has entered the inside to the outdoor floor 1 side, and to more reliably prevent rainwater from entering the ventilation layer 2a of the outer wall panel 2.

FIG. 12 shows still another configuration example of the waterproof accessory 10. This configuration example is the configuration example shown in FIGS. 10 to 11 in which the height of the fin portion 10ce is gradually lowered to the anti-outdoor floor side, and other configurations are shown in FIGS. It is the same as that. In this case, both the guide action for guiding the rainwater and the action of discharging the air that has entered the waterproofing agent 10 to the anti-outdoor floor 1 side are made more effective, and rainwater enters the ventilation layer 2a of the outer wall panel 2 Can be prevented more reliably.

  FIG. 13 shows still another configuration example of the waterproof accessory 10. In this configuration example, as the rising portion 10c, the standing plate portions 10cb and 10cc are provided in three directions except for one on the anti-outdoor floor side among the four directions around the vent opening 10a of the bottom plate portion 10b. Ventilation is performed in the gap between the bottom plate portion 10b and the ceiling surface portion 10d. That is, this structural example is the structure which abbreviate | omitted standing board part 10ca in the waterproofing accessory 10 shown in FIGS. Other configurations are the same as those of the waterproof accessory 10 shown in FIGS. FIG. 13A shows a plan view of the waterproof accessory 10 of this configuration example, and FIG. 13B shows a longitudinal sectional view thereof.

  In this configuration example, one of the four standing plates on the side opposite to the outdoor floor of the four sides around the vent opening 10a of the bottom plate 10b is omitted, so that rainwater to the vent layer 2a of the outer wall panel 2 is omitted. Although the degree of infiltration is somewhat higher, the other standing plate portions 10cb, 10cc and the ceiling surface portion 10d can sufficiently prevent the intrusion of rainwater. Further, since one of the standing plate portions is omitted, there is an effect that the air permeability between the ventilation layer 2a of the outer wall panel 2 and the ventilation path 11 inside the headboard 3 can be enhanced accordingly.

DESCRIPTION OF SYMBOLS 1 ... Outdoor floor 2 ... Outer wall panel 2a ... Ventilation layer 3 ... Headwood 8 ... Base plate 8a ... Communication opening 9 ... Waterproof sheet 9a ... Ventilation opening 10 ... Waterproofing thing 10a ... Ventilation opening 10b ... Bottom plate part 10c ... Rising part 10ca, 10cb, 10cc ... Standing plate portion 10cd ... Partition plate portion 10ce ... Fin portion 10d ... Ceiling surface portion

Claims (7)

An outer wall panel having a ventilation layer rising from the edge of the outdoor floor, and a headboard that is covered along the top end face of the outer wall panel and allows passage of water and air between the front and back surfaces of the outer wall. A parapet top end ventilation structure comprising:
In the waterproof sheet that is covered from the side of the outdoor floor side of the outer wall panel to the top end surface, a ventilation opening that communicates with the ventilation layer is provided,
Under the waterproof sheet, on the top end surface of the outer wall panel, a base plate having a communication opening for communicating the ventilation layer and the ventilation opening is provided,
A waterproofing object is installed on the base plate through the waterproof sheet inside the headboard,
The waterproof accessory has a bottom plate portion that is formed with a ventilation opening communicating with the ventilation opening of the waterproof sheet and is fixed on the waterproof sheet, and a rising portion that rises from the bottom plate portion around the ventilation opening. Characteristic parapet top ventilation structure.   The ventilation structure of the parapet top end according to claim 1, further comprising a ceiling surface portion provided on the rising portion of the waterproof accessory and covering above the ventilation opening. In the ventilation structure of the parapet Tentan according to 請 Motomeko 2, the rising portion of the waterproof won game has a vertical plate portion positioned at four sides of the periphery of the vent opening, located in the counter-outdoor floor side A parapet top end ventilation structure in which only one standing plate portion is lower than the other three standing plate portions and vents through a gap between the upper end of the lower standing plate portion and the ceiling surface portion. In the ventilation structure of the parapet Tentan according to 請 Motomeko 2, wherein the rising portion of the waterproof won game, among the four sides of the periphery of the vent opening, standing on three sides except one way to become anti outdoor floor side A ventilation structure of a parapet top end that is provided with a plate portion and performs ventilation in a gap between the bottom plate portion and the ceiling surface portion on the one side.   In the ventilation structure of the parapet top end according to claim 3 or 4, as one of the rising portions of the waterproofing member, from the outdoor floor side to the anti-outdoor floor side at both ends of the outer wall panel width direction. Ventilation structure of the parapet top end with a slanted fin that goes to the side as it goes.   The ventilation structure of the parapet top end according to any one of claims 3 to 4, wherein the upright plate portion positioned at both ends in the width direction of the outer wall panel in the rising portion of the waterproof accessory, and the ceiling Each of the surface portions has a parapet top end ventilation structure that extends toward the outdoor floor side of the vent opening. The ventilation structure of the parapet top end according to any one of claims 3 to 6, wherein the rising portion of the waterproof accessory is one sheet between the standing plate portions at both ends in the width direction of the outer wall panel. Or a parapet top end ventilation structure having a plurality of partition plates.

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