JP4384574B2 - Roof parapet ventilation structure - Google Patents

Description

  The present invention relates to a parapet ventilation structure provided at a peripheral edge of a roof.

  The building may be provided with a roof parapet in which the peripheral edge of the roof protrudes upward. In general, such a roof parapet has a ventilation path inside, and one side of the ventilation path communicates with the outside of the building and the other side communicates with the attic of the building. Then, outside air flows into the attic through the ventilation path in the roof parapet, and the air in the attic is exhausted to the outside of the building through the ventilation path in the roof parapet, so that the attic is efficiently ventilated. (For example, refer to Patent Document 1 and Patent Document 2).

In addition, as a ventilation structure of the attic, a gap that leads to the attic is formed between the roof tiles that are installed with a predetermined roof gradient between the top tiles, and ventilation of the attic is performed through this gap. In some cases (see, for example, Patent Document 3).
Japanese Utility Model Publication No. 6-44903 JP 2000-145044 JP-A-9-78781

  However, among the prior arts described above, Patent Document 1 has a structure in which outside air that has entered the roof parapet flows directly into the attic, so that rainwater tends to enter the attic.

  Further, in Patent Document 2, the shape of the top of the roof parapet is devised so that rainwater that has entered the roof parapet does not flow directly into the attic. However, in this configuration, the shape of the headboard is complicated. Therefore, there is a problem that it takes time to process the headboard.

  Furthermore, in patent document 3, it is a ventilation structure through the roof tile located in the uppermost part, ie, a big building, and does not ventilate an attic through a roof parapet.

  An object of the present invention is to provide a ventilation structure for a roof parapet that can prevent rainwater from entering the attic with a simple configuration.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a plurality of block-like spacers are arranged in two rows along the longitudinal direction of the parapet main body at the upper part of the parapet main body provided at the peripheral edge of the roof. Are arranged in a staggered manner, and a gap is provided between the spacers in one row and the spacers in the other row, and between adjacent spacers in each row, and above the parapet body including the upper surface of the spacer, By covering with a waterproof material continuously provided up to the roof surface, each gap is formed as a ventilation path communicating with the attic under the roof surface.

  According to the above configuration, since the plurality of spacers are arranged in a zigzag pattern in two rows, the outside air that has entered the ventilation path flows into the attic after the flow direction is forcibly bent, and directly into the attic. There is no flow. As a result, rainwater can be prevented from entering the attic.

  According to a second aspect of the present invention, in the first aspect, the parapet main body is provided with an outer wall on a surface opposite to the roof surface side, and the waterproof material is bent downward on the side close to the outer wall, The front end of the bent portion is located below the upper end edge of the outer wall. If comprised in this way, since the bent tip of the waterproof material is located below the upper edge of the outer wall, rainwater is less likely to enter the ventilation path, preventing rainwater from entering the attic more effectively. Can do.

  A third aspect of the present invention is characterized in that, in the first or second aspect, the waterproof material in the upper part of the parapet main body is covered with a headboard. If comprised in this way, since a waterproofing material will be covered with a coping, the appearance of a roof parapet can be made beautiful.

  According to a fourth aspect of the present invention, in the first aspect, the parapet body includes a plurality of plate-like vertical frames arranged at predetermined intervals along the longitudinal direction of the parapet main body, and an upper surface of each vertical frame. And a plate-like upper frame placed horizontally, wherein the plate width of the upper frame is smaller than the plate width of the vertical frame. If comprised in this way, since a space (gap) is formed laterally on the side surface of the upper frame, this space can be used as a part of the ventilation path.

  According to a fifth aspect of the present invention, in the first aspect, the gap between adjacent spacers in the one row and the gap between adjacent spacers in the other row overlap each other when viewed from the outer wall side. The position is relatively shifted along the longitudinal direction of the parapet main body so that there is no portion. If comprised in this way, it can prevent much more effectively that rainwater flows into an attic.

  According to the present invention, since the ventilation path in the roof parapet is bent, it is possible to prevent rainwater from entering the attic with a simple configuration.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 2 is a sectional view showing a part of a building 1 provided with a roof parapet according to the present invention. The building 1 has an outer wall 2 on the side surface and a roof 3 on the upper surface, and a roof parapet 4 is installed on the peripheral edge of the roof 3. The building 1 is provided with a room 5 inside thereof, and a space between the ceiling 6 and the roof 3 of the room 5 is a ceiling 7.

  A plurality of roof bases 8 are provided on the ceiling 7, and gaps G <b> 1 are formed in the roof base 8 along the horizontal direction. A plate-like member 9 is provided in the horizontal direction below the roof parapet 4.

  FIG. 1 is an enlarged view of a portion A in FIG. As shown in FIG. 1, the roof parapet 4 includes a vertical frame 10 fixed on the plate-like member 9 (see FIG. 2) and an upper frame 11 placed on the vertical frame 10. Yes. As shown in FIG. 3, the vertical frame 10 is formed of a flat plate-like member, and a plurality of vertical frames 10 are arranged at predetermined intervals along the longitudinal direction of the roof parapet (only two vertical frames 10 are shown in the figure). Although not done, in reality, three or more are arranged along the longitudinal direction of the roof parapet). The upper frame 11 is formed of one flat plate member, is horizontally placed on the upper surfaces of the plurality of vertical frames 10, and is fixed to the vertical frame 10. Here, each vertical frame 10 and the upper frame 11 constitute a parapet main body.

  The plate width w 1 of the upper frame 11 is smaller than the plate width w 2 of the vertical frame 10. When the upper frame 11 is placed on the upper surface of the vertical frame 10, it is between the both sides of the upper frame 11 and the both sides of the vertical frame 10. A space is formed. In particular, a space S is formed between the both sides of the upper frame 11 and the right side 10 </ b> A of the vertical frame 10 on the side closer to the roof base 8 (the right side of the upper frame 11 in FIG. 3). A space is formed near the outer wall 2 (on the left side of the upper frame 11 in FIG. 3) with the left side 10B of the vertical frame 10 (see FIG. 1). The space cannot be seen from above. The length of the square member 12 is set to be the same as the length of the upper frame 11 (length in the longitudinal direction).

  Waterproof paper 13 is affixed to the upper surface and the left side surface of the upper frame 11, and the tip of the waterproof paper 13 passes through the lower side of the square member 12 and extends to the right side 10B side of the vertical frame 10 (see FIG. 1). On the waterproof paper 13 on the upper frame 11, a plurality of block-like spacers 14 are provided on one side (side closer to the outer wall 2), and a plurality of block-like spacers 15 are provided on the other side (side closer to the roof surface 3A). As shown in FIG. 4, these spacers 14 and 15 are arranged in two rows in a staggered manner when viewed from above. The spacers 14 and 15 have a rectangular cross-sectional shape (a cross-sectional shape perpendicular to the central axis).

  There is a gap S1 between the adjacent spacers 14 and 14 in the row closer to the outer wall 2 (one row), and a gap between the adjacent spacers 15 and 15 in the row closer to the roof surface 3A (the other row). S2 is formed. When the spacers 14 and 15 are viewed from the direction of arrow B in FIG. 4, the lengths of the spacers 14 and 15 are adjusted so that the gaps S1 and S2 do not overlap each other. The heights of the spacers 14 and 15 are the same.

  Further, a gap S3 is formed between the spacers 14 and the spacers 15 arranged in a staggered pattern, and the gap S3 communicates with the gaps S1 and S2.

  The upper frame 11 is provided with a block-like spacer 16 at one end (left side in FIG. 4). The spacer 16 is also fixed on the waterproof paper 13, and the height of the spacer 16 is set to be the same as that of the spacers 14 and 15. The spacer 16 is in close contact with the end face of the spacer 14, but a gap S <b> 2 is formed between the end face of the spacer 15. This gap S2 also communicates with the gap S3.

  As shown in FIG. 1, the outer wall 2 includes an outer wall material fixing body edge 17 attached to the side surface of the vertical frame 10 via a waterproof paper 13, and an outer wall material 18 provided outside the outer wall material fixing body edge 17. It consists of and. Here, the upper end edge of the outer wall material fixing body edge 17 coincides with the upper surface of the square member 12, but the upper end edge of the outer wall member 18 is higher than the upper surface of the upper frame 11 at a position higher than the upper surface of the square member 12. Is even higher.

  A sheet-shaped waterproof material 19 is provided on the top of the roof parapet 4 including the upper surfaces of the spacers 14 and 15. The waterproof material 19 covers the gaps S <b> 1 to S <b> 3 from above, and forms a ventilation path described later.

  A flat fixture 20 is provided on the waterproof material 19, and the waterproof material 19 is fixed to the upper surfaces of the spacers 14, 15 by attaching the mounting fixture 20 to the spacers 14, 15 with screws 21.

One side (right side in the figure) of the waterproof material 19 is bent downward to form a vertical portion 19A, and the tip of the vertical portion 19A is horizontally bent and provided continuously to the roof surface 3A of the roof 3. ing. Further, the other side of the waterproof material 19 (the left side in the figure) is also bent downward, and the lower end of the bent portion 19B is set at a position lower than the upper end edge of the outer wall material 18. A gap G5 is formed between the lower end of the bent portion 19B of the waterproof material 19 and the upper surface of the square member 12.

  Further, a gap G4 is formed between the bent portion 19B and the side surface of the spacer 15 (side surface close to the outer wall 2), and a gap G6 is formed between the bent portion 19B and the inner surface of the outer wall material 18. Further, there is a gap G2 between the side surface of the upper frame 11 (side surface close to the roof surface 3A) and the vertical portion 19A of the waterproof material 19, and a gap G3 between the upper surface of the upper frame 11 and the waterproof material 19. (This gap G3 is equal to the height of the spacers 14 and 15).

  A cap 22 is fixed to the mounting bracket 20. That is, the mounting bracket 20 is formed with bent portions 20A and 20B which are bent obliquely downward on both sides, and the bent portions 22A and 22B formed on both sides of the headboard 22 are engaged with the bent portions 20A and 20B. The headboard 22 is firmly fixed to the mounting bracket 20. A gap G7 is formed between the upper edge of the outer wall member 18 and the bottom surface of the mounting bracket 20, and a gap G8 is formed between the hanging part 22B of the headboard 22 and the outer surface of the outer wall member 18.

  In this embodiment, in order to effectively ventilate the attic 7 and reliably prevent rainwater from entering the attic 7, the gap G1 is 7 mm or more, the gap G2 is 7 mm or more, the gap G3 is 17 to 44 mm, and the gap G4. Is 7 to 26 mm, the gap G5 is 7 to 26 mm, the gap G6 is 17 mm or more, the gap G7 is 7 to 26 mm, and the gap G8 is 7 to 17 mm. Furthermore, the overlap margin L between the hanging portion 22B of the headboard 22 and the outer wall material 18 was set to 55 mm or more.

  Also, as shown in FIG. 4, the gap S3 between the spacers 14 and 15 is set to 17 to 60 mm, the rows of the spacers 14 are 30 to 200 mm every 900 mm, and the spacers 15 are 30 to every 30 mm. A gap S2 of ˜200 mm can be secured. Furthermore, the length of the hanging portion of the bent portion 19B of the waterproof material 19 is set to be equal to or greater than the thickness of the spacers 14 and 15 (17 to 44 mm).

  Next, the effect | action of the ventilation structure of the roof parapet by a present Example is demonstrated.

  The outside air passes through a gap G8 between the hanging portion 22B of the headboard 22 and the outer surface of the outer wall member 18, and further, a gap G7 between the upper edge of the outer wall member 18 and the mounting bracket 20, the bent portion 19B and the inner surface of the outer wall member 18 In the ventilation path above the upper frame 11 through the gap G6 between the upper frame 11 and the gap G5 between the lower end of the bent portion 19B and the top surface of the square member 12 and the gap G4 between the bent portion 19B and the side surface of the spacer 15. Flow into.

  As shown in FIG. 3, the air flows into the ventilation path through the gap S1, and then the flow direction is changed by the spacers 14 and 15 and the like through the gap S3. As shown in FIG. Furthermore, it flows toward the gap G <b> 2 between the side surface of the upper frame 11 and the vertical portion 19 </ b> A of the waterproof material 19. Note that when the gaps S1 to S3 are viewed in the height direction, a gap G3 is obtained.

  The outside air flowing toward the gap G2 passes through the gap G2, passes through the space S (see FIG. 3), and further flows into the attic 7 of the building 1 through the gap G1 formed in the roof base 8.

  When the air in the attic 7 is exhausted outside the building 1, the air in the attic 7 is exhausted through a path opposite to the arrows shown in FIGS. 1 and 3.

  According to the present embodiment, since the spacers 14 and 15 are arranged in two rows in a staggered manner, the flow direction of the outside air that has entered the ventilation path is forcibly bent by the spacers 14 and 15 and enters the attic 7. There is no direct flow. As a result, it is possible to easily prevent rainwater from entering the attic 7.

  Moreover, since the front-end | tip of the bending part 19B of the waterproof material 19 is located below the upper end edge part of the outer wall material 18, it is difficult for rain water to enter into a ventilation path via the clearance gap G5, and as a result, to the attic 7 Infiltration of rainwater can be prevented more reliably.

  Further, since the waterproof material 19 is covered with the headboard 22, the appearance of the roof parapet 4 can be made to look good.

  Furthermore, since the space S is formed on the lateral side of the upper frame 11, this space S can be used as a part of the ventilation path.

  As mentioned above, although the Example of this invention has been explained in full detail according to drawing, the concrete structure is not restricted to this Example, The design change of the grade which does not deviate from the summary of this invention is included in this invention.

  That is, in the above embodiment, the cross sections of the spacers 14 and 15 are rectangular. However, the present invention is not limited to this, and the cross sections of the spacers 14 and 15 may be trapezoidal. Further, another row of spacers is provided on the side of the spacers 14 or 15 (that is, the spacers are arranged in three rows), and the newly provided spacers and the spacers 14 or 15 are arranged in a staggered manner, respectively. Good.

It is sectional drawing of the roof parapet based on this invention. It is sectional drawing which shows a part of building in which the roof parapet of FIG. 1 was provided. It is a perspective view which shows the principal part of the roof parapet concerning this invention. FIG. 4 is a top view of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 2 Exterior wall 3 Roof 4 Roof parapet 7 Attic 8 Roof base 10 Vertical frame 11 Upper frame 14,15 Spacer 18 Outer wall material 19 Waterproof material 19B Bending part 22 Kasagi 22B Hanging part S1-S3 Crevice

Claims (5)

A plurality of block-shaped spacers are arranged in two rows in a staggered manner along the longitudinal direction of the parapet body on the upper portion of the parapet body provided at the peripheral edge of the roof, and the spacers in one row and the other row A gap between each of the spacers and between adjacent spacers in each row,
The upper portion of the parapet main body including the upper surface of the spacer is covered with a waterproof material continuously provided up to the roof surface, whereby each gap is formed as a ventilation path communicating with the attic under the roof surface. The roof parapet ventilation structure. The parapet body is provided with an outer wall on the surface opposite to the roof surface side,
2. The roof parapet ventilation structure according to claim 1, wherein the waterproof material is bent downward on a side close to the outer wall, and a tip of the bent portion is positioned below an upper edge of the outer wall. .   The ventilation structure of the roof parapet according to claim 1 or 2, wherein the waterproof material in the upper part of the parapet main body is covered with a headboard.   The parapet main body includes a plurality of plate-like vertical frames arranged at predetermined intervals along the longitudinal direction of the parapet main body, and one plate-like upper frame placed horizontally on the upper surface of each vertical frame. The roof parapet ventilation structure according to claim 1, wherein a plate width of the upper frame is smaller than a plate width of the vertical frame.   The gap between adjacent spacers in the one row and the gap between adjacent spacers in the other row are along the longitudinal direction of the parapet body so that there is no overlapping portion when viewed from the outer wall side. The ventilation structure of the roof parapet according to claim 1, wherein the position is relatively shifted.

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