JP2007231659A - Waterproof structure of parapet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof structure of a parapet which is not required to arrange a reinforcement to an overhung part of the parapet and to form a flashing groove and a groove for receiving a panel or the like by using compact slim flashing hardware with a small number of members and has good installation properties and is inexpensive and is remarkably excellent in appearance. <P>SOLUTION: The flashing hardware 4 comprises a rising part 4a which abuts on a side surface 1b of the parapet 1, a slanting part 4b which slants downward outwardly from the rising part 4a, and a receiving plate 4c which is hung from the slanting part 4b and has a downward C shaped cross section holding an upper end of an external facing plate 3. The rising part 4a is fixed to the side surface 1b of the parapet 1 by a fastening tool 5 such as a screw 5, and an upper end of the external facing plate 3 erected on a slab is fitted and held into the receiving plate 4c of the flashing hardware 4. A joint part between the overhung part 1a of the parapet 1 and the flashing hardware 4 is water proofed by a sealing material 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to the technical field of a waterproof structure for a parapet that stands on the roof of a building.

  Generally, a waterproof layer is formed on the roof of a building by asphalt or the like, and presser concrete is placed on the upper surface of the waterproof layer. And it is constructed so that the edge part of a waterproof layer may stand up along with a parapet in the exposed state.

  Therefore, various techniques have been disclosed and implemented in order to prevent the waterproof layer end from deteriorating and damaging to ensure the water stop quality (FIGS. 7 and 8). reference).

  FIG. 7 shows a technique for protecting the waterproof layer end portion d by forming an overhanging portion (jaw portion) b on the upper part of the concrete casing a of the parapet and attaching an upper end portion of a protective plate (exterior plate) c to the lower surface thereof. ing. FIG. 8 shows a technique for protecting the waterproof layer end d by placing protective concrete e along the waterproof layer end d and attaching a headboard f to the upper end surface of the parapet a.

  However, in the former, it is necessary to arrange not only the parapet housing but also the overhanging portion b, and the drainage groove g and the panel receiving groove h must be formed on the lower surface of the overhanging portion b. Construction work and concrete placement work may be very troublesome and require the hands of a skilled worker, leading to a problem that the construction period is prolonged and not economical. In the latter case, the protective layer of the waterproof layer end d is a wet construction method, and in addition to the concrete placing work, the reinforcement and the mortar finish i for preventing the fall are necessary. There was a problem that it was difficult to maintain and inspect part d.

  In recent years, in view of the above problem, a technique related to a waterproof structure of a parapet using drained metal has been disclosed (for example, see Patent Document 1).

  As shown in FIG. 1 of the document 1, the technique according to Patent Document 1 is attached to a parapet formwork, and has an opening on one end side to be embedded in the parapet 1 and the support means 2. A draining metal 5 connected by the connecting member 4 and a protective plate (exterior plate) 7 that is held at the lower end of the draining metal 5 and is erected on the slab.

  According to the technique according to Patent Document 1, by using a draining metal fitting 5 that fits and holds the upper end portion of the protective plate 7, the draining groove g and the panel receiving groove h as shown in FIG. Labor saving is saved. Further, it is not necessary to place the protective concrete e as shown in FIG. 8, and the mortar finish i is also unnecessary.

JP 2003-278339 A

  However, since the technique according to Patent Document 1 requires that the resin holder 2 used as the support means 2 is placed in advance by placing the resin holder 2 in advance on the inside of the parapet form, Installation work is very troublesome. In addition to the resin holder 2 having a complicated structure, the number of member points is large, such as the band-shaped elastic member 3, the connecting member 4, the drainage metal 5, and the waterstop member 6, which are troublesome to mount. It was not economical. Furthermore, since the rising part 5a and the inclined part 5b of the draining hardware 5, the handle 4c of the connecting member 4 and the like are exposed to the outside, a complicated impression is given to the viewer, and the scenery is impaired.

  By the way, it is customary to carry out the projecting amount of the projecting portion of the parapet at about 120 mm from the remnant in which the protective layer of the waterproof layer is conventionally formed of brick and mortar. However, according to the Architectural Institute of Japan and standard specifications, if the amount of overhang is less than 100 mm, it is not necessary to perform bar arrangement on the overhang portion, and if only the wall bar is arranged, construction can be performed.

  The object of the present invention is to use a drained metal piece having a compact and slim structure with a small number of members, so that there is no need to arrange bars in the overhanging portion of the parapet, and it is necessary to form a draining groove and a panel receiving groove. It is to provide a waterproof structure for parapets that is easy to construct, economical, and has excellent landscape characteristics.

  As a means for solving the above-mentioned problem, the waterproof structure of the parapet according to the invention described in claim 1 is provided with a draining metal piece 4 on the lower jaw portion of the overhanging portion 1a of the parapet 1, as shown in FIG. The waterproof structure of the parapet 1 is formed by holding the upper end portion of the exterior plate 3 that protects the waterproof layer 2 with the drainage piece 4, and the drainage piece 4 includes a rising portion 4 a that abuts against the side surface 1 b of the parapet 1, The rising portion 4a is composed of an inclined portion 4b that is inclined downwardly outwardly, and a cross-section that is suspended from the inclined portion 4b and holds the upper end portion of the exterior plate 3 and has a U-shaped receiving plate portion 4c. Is fixed to the side surface 1b of the parapet 1 by a fastener 5 such as a screw 5, and the upper end portion of the exterior plate 3 standing on the slab is fitted and held in the receiving plate portion 4c of the draining metal piece 4. Being, joints between the projecting portion 1a and the draining fittings 4 of the parapet 1 is characterized in that it is waterproofed by the sealing material 6.

  The invention described in claim 2 is the waterproof structure of the parapet according to the invention described in claim 1, and as shown in FIG. 1, each of the overhanging portion 1 a of the parapet 1, the draining hardware 4, and the sealing material 6 is provided. The outer surface is characterized by being substantially flush.

  The invention described in claim 3 is the waterproof structure of the parapet according to the invention described in claim 1 or 2, wherein the overhang amount H of the parapet 1 and the width H of the drainage metal 4 and the sealing material 6 are about 60 mm, respectively. It is characterized by being.

  The invention described in claim 4 is the waterproof structure of the parapet according to any one of claims 1 to 3, and as shown in FIG. 1, the overhanging portion 1 b of the parapet 1 and the draining metal piece 4 In the joint portion in the middle, a waterproof seal 6a and a finish seal 6c are applied in order from the back side to the outside, and a backup material 6b such as a foam material 6b is provided between the waterproof seal 6a and the finish seal 6c. It is characterized by being interposed.

  According to a fifth aspect of the present invention, in the waterproof structure of the parapet according to any one of the first to fourth aspects, as shown in FIG. 2 and FIG. The parts are connected to each other by a backing material 12 slidably fitted on the back surfaces of the draining hardware 4, 4.

According to the waterproof structure of the parapet according to the invention described in claim 1, the waterproof structure can be realized mainly by the drainage metal 4 having a simple configuration and the sealing material 6, so that the number of members is small, and the parapet 1. This eliminates the need to form a draining groove and a panel receiving groove on the lower surface of the overhanging portion 1a.
According to the waterproof structure of the parapet according to the invention described in claim 2, in addition to the above-described effects, the appearance can be finished flat, giving the viewer a light feeling and excellent landscape.
According to the waterproof structure of the parapet according to the invention described in claim 3, in addition to the effects described above,
The overall space can be reduced and the rooftop space can be used effectively. In addition, since the overhang amount H is less than 100 mm, it is not necessary to arrange the overhanging portion 1a according to the Architectural Institute of Japan and standard specifications, and it is possible to construct it by arranging only the wall bars. The cost required for the installation work can be greatly reduced. Accordingly, industrial waste can be reduced, and a waterproof structure that is friendly to the earth can be realized.
According to the waterproof structure of the parapet according to the invention described in claim 4, in addition to the above-described effects, the so-called double seal structure can prevent deterioration of the water-stop seal 6 a over time. It is possible to permanently prevent water from entering the inside of the waterproof layer (end portion) 2.
According to the waterproof structure of the parapet according to the invention described in claim 5, in addition to the above-described effect, even if rainwater intrudes from the gap between the ends of the adjacent draining metal pieces 4, 4, It can guard with this material 12, and can prevent the water immersion to the inner side of the waterproof layer (end part) 2 permanently. Therefore, in recent years, the required useful life (31 to 50 years) of a residential building can be sufficiently fulfilled.

  The waterproof structure for a parapet according to the present invention is implemented as follows in order to achieve the effects of the above-described invention.

FIG. 1 shows an embodiment of a waterproof structure for a parapet according to the invention described in claim 1.
This waterproof structure is a waterproof structure of a parapet 1 in which a draining metal piece 4 is installed on the lower jaw part of the overhanging portion 1 a of the parapet 1, and the upper end portion of the exterior plate 3 protecting the waterproof layer 2 is held by the draining metal piece 4. The draining metal piece 4 has a rising portion 4a that contacts the side surface 1b of the parapet 1, an inclined portion 4b that is inclined downward from the rising portion 4a, and an upper end portion of the exterior plate 3 that hangs down from the inclined portion 4b. The holding section is composed of a U-shaped receiving plate portion 4c facing downward, and the rising portion 4a is fixed to the side surface 1b of the parapet 1 by a fastener 5 such as a screw 5. The upper end portion of the exterior plate 3 standing on the slab is fitted and held in the receiving plate portion 4 c of the draining metal piece 4. The joint between the overhanging portion 1b of the parapet 1 and the drained metal piece 4 is waterproofed with a sealing material 6 (the invention according to claim 1).

  Incidentally, the exterior plate 3 is erected by laying a rail (not shown) for fitting the exterior plate on the upper surface of the slab. The waterproof layer (end portion) 2 is raised along the parapet 1, and its upper end portion is attached and fixed by a fastener 10 such as a screw 10 using a presser metal 9 such as an angle member. And the coating material 11 is applied to such a degree that the waterproof layer 2 and the top end surface of the presser foot 9 are slightly raised so that rainwater can be prevented from entering from the top end of the presser foot 9.

  The draining metal 4 is disposed in the horizontal direction along the lower surface with the top end surface of the rising portion 4a abutting against the lower surface of the overhanging portion 1a of the parapet 1. The draining metal piece 4 according to this embodiment is made of aluminum, and is formed by integrally forming the rising portion 4a, the inclined portion 4b, and the receiving plate portion 4c by extrusion molding. Moreover, although this draining metal piece 4 is implemented by connecting a plurality of standard objects of about 2000 to 3000 mm in the horizontal direction, the length is not particularly limited, and when used for a corner portion, it is short. Appropriately increased or decreased depending on the installation site, such as using an object.

  The rising portion 4a of the drained metal piece 4 according to the illustrated example is formed in a flat plate shape having a slightly thicker top end portion, and a through hole (through a fastener 5 such as a screw is passed at a required interval in the horizontal direction ( (Not shown) is perforated. The inclined portion 4b is provided to be inclined downward from the lower end of the rising portion 4a outward at an angle suitable for draining (about 15 degrees in the illustrated example) with respect to a horizontal plane. The receiving plate portion 4c includes two plates, a receiving plate 4c that is inclined downward from the middle portion of the inclined portion 4b, bent from the middle and hangs down vertically, and a receiving plate 4c that hangs down vertically from the tip portion. The lower parts thereof are formed substantially in parallel so as to face each other so as to hold the upper end portion of the exterior board 3. Further, the lower ends of the two receiving plates 4c and 4c are respectively formed with latching portions 7 and 8 for holding the exterior plate 3. Incidentally, the latching portion 8 is formed with an L-shaped folded portion so as to hold a backing plate 12 described later.

  The shape of the draining metal piece 4 is not limited to the illustrated example, and the rising portion 4a that comes into contact with the side surface 1b of the parapet 1, the inclined portion 4b inclined downward to an angle suitable for draining, and the exterior plate 3 is not particularly limited on the condition that it has a receiving plate portion 4c capable of holding the upper end portion of 3.

  Therefore, according to the waterproof structure of the parapet 1 having the above-described structure, the waterproof structure can be realized mainly by the drainage metal 4 having the simple structure and the sealing material 6. Since it is not necessary to form a draining groove and a panel receiving groove on the lower surface of 1a, the workability is good and economical.

  Although there are various methods for waterproofing with the sealing material 6, in this embodiment, a water-stop seal 6 a is first provided on the surface side of the fastener 5, and a backup material such as a foam material 6 b is provided on the water-stop seal 6 a. By applying a finishing seal 6c after backing 6b, the joint between the overhanging portion 1a of the parapet 1 and the drainage metal 4 is waterproofed (invention according to claim 4).

  The significance of performing the waterproofing treatment in two stages, that is, the waterproof seal 6a and the finishing seal 6c, is that the surface of the sealing material is exposed to the atmosphere simply by filling the sealing material. Deteriorated over time due to the effects of ultraviolet rays and ozone when exposed to sunlight, volume shrinkage and cracking of the seal material will eventually occur, water tightness will be lost in about 10 years, rainwater will permeate, and the waterproof function will be remarkable This is to prevent disappearance. According to the present embodiment, when the finish seal 6c deteriorates over time and rainwater has entered, it can be drained downward by the backup material 6b, and the waterproof seal 6a and eventually the waterproof layer (end portion) 2 can be drained. Inundation to the inside can be permanently prevented. Incidentally, the lower surface of the backup material 6b according to the present embodiment is filled with a joining seal material 6d for joining the water-stop seal 6a and the finish seal 6c. Incidentally, the backup material 6 can be made of any material as long as it has water permeability.

  In addition, the outer side surfaces of the overhanging portion 1a of the parapet 1 according to the present embodiment, the drainage piece 4, and the sealing material 6 (finishing seal 6c) are substantially flush with each other (the invention according to claim 2). Thereby, the external appearance of the waterproof structure of the parapet 1 can be finished flat, it gives a light feeling to the viewer and is excellent in landscape.

  Further, the overhang amount H of the parapet 1 and the width H of the draining metal piece 4 and the sealing material 6 (finishing seal 6c) are each about 60 mm (invention according to claim 3). Thereby, the overhang | projection part 1b which protruded about 120 mm conventionally can be slimmed, and the effective utilization of rooftop space can be aimed at. Moreover, since it can implement with the overhang | projection amount H less than 100 mm, it is not necessary to arrange a bar in the said overhang | projection part 1a based on the Architectural Institute and a standard specification, and it can construct if only a wall bar is arranged. Therefore, the cost required for the formwork and the concrete placing work can be greatly reduced.

  Moreover, as shown in FIG. 2 and FIG. 3, the edge parts of the adjacent draining metal pieces 4 and 4 are connected by the backing material 12 fitted in the back surface of the draining metal piece 4 so that sliding was possible. 5). The backing material 12 according to the illustrated example is implemented with a length of about 120 mm, and is arranged so as to extend almost evenly between the ends of the adjacent draining metal pieces 4 and 4. With this backing material 12, even if rainwater invades from the gap between the ends of the adjacent drain metal pieces 4, 4, it can be guarded by the backing material 12, and the waterproof layer (end) It is possible to permanently prevent water from entering the inside of 2.

  Although the embodiments have been described with reference to the drawings, the present invention is not limited to the embodiments shown in the drawings, and design modifications and application variations that are usually performed by those skilled in the art are within the scope not departing from the technical idea thereof. Note that it includes the range. For example, the corner portion of the parapet 1 is connected with no gap using a draining metal 4 ′ and a backing material 12 ′ having a shape as shown in FIG. 4. Moreover, between the adjacent exterior board 3 and the exterior board 3, in order to ensure water-stopping, as shown in FIG. 5, the H-shaped steel material 13 of the perpendicular direction is interposed, and the edge parts are H-shaped. It is carried out in contact with the web portion of the steel material 13. Further, this waterproof structure is applied to the parapet 1 and, as shown in FIG. 6, the same reference numerals are given and the description thereof is omitted, but the waterproof structure is also applied to a rising portion around a balcony or a veranda window. Can be applied.

It is the sectional elevation which showed the principal part of the waterproof structure of the parapet concerning the present invention. It is the elevation sectional view showing the edge part structure of the waterproof structure of the parapet concerning the present invention. It is the perspective view which showed the edge part structure of the waterproof structure of the parapet which concerns on this invention. It is the perspective view which showed the Example of the corner part of the waterproof structure of the parapet based on this invention. It is the top view which showed the edge part structure of the exterior board used for the waterproof structure of the parapet based on this invention. It is the perspective view which showed the variation of the waterproof structure which concerns on this invention. It is the sectional elevation which showed the principal part of the waterproof structure of the parapet concerning a prior art. It is the sectional elevation which showed the principal part of the waterproof structure of the parapet concerning a prior art.

Explanation of symbols

1 Parapet 1a Overhang (jaw)
2 Waterproof layer 3 Exterior plate 4 Drainage metal 4a Standing part 4b Inclined part 4c Receiving plate part 5 Screw (fastener)
6 Sealing material 6a Water-stop seal 6b Foam material (backup material)
6c Finishing seal 7, 8 Lower end of backing plate part 9 Pressed metal 10 Screw (fastener)
11 Coaching material 12 Backing material 13 H-section steel material

Claims (5)

A waterproof structure for a parapet, in which a drainage fitting is installed on the lower jaw of the overhanging portion of the parapet, and the upper end portion of the exterior plate protecting the waterproof layer is held by the drainage fixture,
The drainer has a rising portion that contacts the side surface of the parapet, an inclined portion that is inclined downward from the rising portion, and a cross-section that is suspended from the inclined portion and holds the upper end portion of the exterior plate. A plate portion, and the rising portion is fixed to the side surface of the parapet by a fastener such as a screw,
The upper end portion of the exterior plate standing on the slab is fitted and held in the drain plate receiving plate portion,
A waterproof structure for a parapet, wherein a joint between the projecting portion of the parapet and the drained metal is waterproofed with a sealing material.   The waterproof structure for a parapet according to claim 1, wherein an outer surface of each of the overhanging portion of the parapet, the drainage metal, and the sealing material is substantially flush.   The waterproof structure for a parapet according to claim 1 or 2, wherein the amount of overhang of the parapet and the width of the draining metal and the sealing material are each about 60 mm.   The joint between the overhanging part of the parapet and the draining hardware is provided with a water-stop seal and a finish seal in order from the back side to the outside. The waterproof structure for a parapet according to any one of claims 1 to 3, wherein a backup material is interposed.   The waterproof end of the parapet according to any one of claims 1 to 4, wherein the ends of the adjacent drain metal fittings are connected to each other by a backing material slidably fitted on the back surface of the drain metal fitting. Construction.

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