JPH104804A - Drain structure of greening equipment on roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain structure of a greening equipment on a roof capable of draining off rain water within a region with no plant on the roof surface regardless of the position of the greening equipment on the roof surface by forming a draining passage having a specific structure at the bottom part of the greening equipment on the roof. SOLUTION: A draining passage 3 having one opening on the exterior surface of a partition 2 of a greening equipment 1 on the upper side (u) of the slant and the other opening on the exterior surface of a partition 2 of the greening equipment 1 on the down side (d) of the slant is arranged at the bottom part of the greening equipment 1 equipped on the roof surface F. The draining passage 3 is preferably formed on a same surface as the roof surface and composed of draining members having a reversed gutter shape with no bottom and capable of providing a large flowing area at the lower part. Moreover, the draining member having the reversed gutter shape is preferably applied so far as the member can be set watertight though the watertight setting of the draining members having a reversed gutter shape is difficult when the roof has a mortar waterproof or an asphalt waterproof. The draining member is preferably formed by an extruding molding of a synthetic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for a rooftop greenery installed on a flat roof.

[0002]

2. Description of the Related Art In recent years, greening facilities for cultivating plants such as flowers, foliage plants and shrubs have been actively installed on the roof of a building having a flat roof structure or on the veranda of a general house. Has become.

Conventionally, in this type of equipment, as shown in FIG. 5 (a), a rooftop greening equipment (21) has a planting area (Ra) and a non-planting area (Rb), for example, a brick or concrete block. , Or GRC, blocks, etc., are divided by water-tight partitions (22), and the planting area (Ra) is soil (S)
And various plants (P) are cultivated.

[0006] As shown in FIG. 5 (b), the rooftop greening equipment (21) is rarely installed at the top (t) of the slope of the rooftop floor (F). In many cases, rainwater is installed on the sloped slope (r), so that the rainwater falling on the rooftop floor (F) is blocked by the rooftop greening equipment (21), and the pool is well formed (v). There was a problem that it could cause water leakage.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and irrespective of the position of the rooftop greening equipment installed on the rooftop floor, the non-planting area on the rooftop floor can be reduced. An object of the present invention is to provide a drainage structure of a rooftop greening facility that can easily drain rainwater.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method for manufacturing a rooftop greening facility in which one end is opened at the bottom of a greening facility installed on a rooftop floor. The gist of the present invention is a drainage structure of a rooftop greening facility, wherein a drainage channel having the other end opened on the outer side of the partition on the lower side of the slope.

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

In FIG. 1, (F) is a rooftop floor surface, the surface of which is usually subjected to waterproofing work such as mortar waterproofing, asphalt waterproofing or sheet waterproofing.

(1) is a rooftop greening facility installed on a rooftop floor (F), which is filled with soil (S) and cultivates a plant (P) such as flowers, ornamental plants or shrubs. (R
a) is formed by being separated from the non-planting area (Rb) by the partition (2), and the rooftop greening equipment (1)
Inside, along the bottom, that is, along the roof floor (Fa) in the planting area (Ra), the rooftop greening equipment (1)
One end is open on the outer side of the partition (2) of the gradient (u),
A drainage channel (3) having the other end open is provided on the outer surface of the partition (2) of the lower slope (d). (4) is a drain for rainwater provided at the lower end of the slope on the roof.

As shown in FIG. 2, the drainage channel (3) is a tubular water channel member (3a) (3a) having a circular cross section (FIG. 2A), a square cross section (FIG. 2B), or the like. 3b), or a member made of a semi-circular (FIG. 2 (c)), U-shaped (FIG. 2 (d)), or the like, an inverted groove-shaped channel member (3c) (3d) is preferable. The channel member (3) of the drainage channel (3) of these various shapes
For a) to (3d), those obtained by extrusion molding of a synthetic resin are preferably applied, but stainless steel or the like having excellent corrosion resistance is also applicable, and the material is not particularly limited.

Here, the shape of the drainage channel (3) is designed so that the bottom surface of the drainage channel (3) is as small as possible for the purpose of easily draining rainwater in the non-planting area (Rb) on the upper side of the slope. It is necessary to make it flush with the upper floor surface (F) and to increase the substantial flow passage area. Therefore, generally, it is generally desirable that the shape be a so-called tunnel type.

However, in practice, the waterway members forming the drainage channel (3) are selected according to the type of waterproofing work on the rooftop floor (F). For example, as shown in FIG. On the waterproof floor (F1),
The mainly tubular channel member (3a) or (3b)
Further, as shown in FIG. 3 (b), a water channel member (3c) or (3d) having a reverse groove shape is used on the roof floor (F2) by sheet waterproofing. The reason is that the drainage channel (3) needs to be an independent flow passage without leakage, and the rooftop floor (F1) is drained by using the channel member (3c) or (3d). Although it is possible to form a channel, it is somewhat difficult to join it to the roof floor (F1) in a water-tight manner, and it is better to use a tubular channel member (3a) or (3b). In addition, it is possible to form an independent drainage flow path without leakage by joining a reverse groove-shaped water channel member (3c) to one roof floor surface (F2) in a watertight manner. Because it is relatively easy. That is, on the roof floor (F2), for example, both end edges (b1) of the waterway member (3d) as shown in FIG.
This is because the drainage channel (3) can be formed by joining (b1) to the waterproof sheet (6) in a watertight manner via the joining member (S1) or the irregular sealing material (S2).

The tubular waterway members (3a) and (3)
In b), the bottom surface is located at least by the thickness above the floor surface. In particular, in the waterway member (3a), since the flow passage area at a lower position is small, drainage on the floor surface cannot be completely performed. The drainage channel (3) is flush with the roof floor surface (F), and can increase the substantial flow passage area at a low position.
It is clear that d) is more advantageous. Therefore, according to the present invention, the drainage channel (3) is formed with water channel members (3c) and (3d) on the roof floor (F1) with mortar waterproofing and asphalt waterproofing.
This shall be applied as long as it can be installed watertight with the rooftop floor (F1).

The drainage channel (3) may be provided at a plurality of locations as required.

According to the present invention, as described above, one end is opened at the bottom of the rooftop greening facility installed on the rooftop floor, and one end is opened at the upper partition outer surface of the rooftop greening facility. Since drainage channels with open ends are installed, rainwater falling on the rooftop floor is not blocked by the greening equipment,
Since the water flows from the top of the slope to the bottom through the drainage channel, water cannot be collected well on the rooftop greening equipment.

Further, the drainage structure of the present invention can be applied to a drainage channel of a conventional greening facility which is formed by a partition in which bricks, concrete blocks, GRC blocks and the like are arranged in a watertight manner. Roofing floor (F2) formed by a partition made up of an extended partition member having a hat-shaped cross section and a corner partition member in Japanese Patent Application No. 8-153763 previously proposed by the user (F2).
It can be applied very effectively to drainage of rooftop greening equipment installed in

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing embodiments.

First, as a greening facility to which the drainage structure of the rooftop greening facility of the present invention is applied, as shown in FIG. 4, a heat insulating material (5a) and a walking board (5b) are provided on the entire surface of a frame (5) of a flat roof structure. A 1.7 mm thick PVC steel sheet is formed on a 1 / 100-slope rooftop floor (F) that has been waterproofed by laying a waterproof sheet (6) through Has an edge (2e) projecting left and right with the vinyl chloride resin surface outside, a top width of 5 cm and a height of 10 cm
And a partition member (2a) having a hat shape and a corner partition member (2b) are connected to each other and arranged in a frame shape, and this is joined to a waterproof sheet (6) using a joining belt (6a). A greening facility (1) formed by joining in a water-tight manner by an adhesion method or a fusion method so as to cover the portion (2e) was adopted.

Next, the drainage structure of the rooftop greening equipment (1) has a U-shaped cross section similar to FIG. 2 (d), a thickness (s) of 0.5 cm, and a height (h) of 4 cm. A water channel member (3d) made of a synthetic resin extruded member having a width (w) of 4 cm is formed by cutting a lower edge notch portion of a partition (2a) having both ends on the upper side of the slope and a partition (2a) on the lower side of the slope (2a). n), the gap between the waterway member (3d) and the partition member (2a) and the gap between the waterway member (3d) and the waterproof sheet (6) are filled with silicon-based non-woven fabric. A fixed-shaped sealing material (S2) was filled and joined in a watertight manner.

The above-mentioned greening equipment (1) in which the drainage channel (3) was installed was filled with soil, and the flow of rainwater in the non-planting area (Rb) during rainfall was observed. The water smoothly flowed down the slope through the drainage channel (3) and did not accumulate in the non-planting area (Rb). Also,
In the planting area (Ra), not only rainwater but also irrigated water did not leak unnecessarily there.

[0021]

As described above, according to the present invention, the drainage structure of the rooftop greening facility is provided with one end opening at the bottom of the greening facility installed on the rooftop floor, at one end of the sloped upper side of the greening facility. And a drainage channel with the other end opened on the outer side of the partition on the lower side of the slope, so that regardless of the position of the rooftop greening equipment installed on the rooftop floor, rainwater in the non-planting area on the rooftop floor is removed. There is an effect that the water can be easily drained, and further, in the planting area (Ra), there is an advantage that not only rainwater but also irrigated water does not leak unnecessarily there.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a drainage structure of a rooftop greening facility of the present invention.

FIG. 2 is a transverse sectional view showing an embodiment of a drainage channel used for a drainage structure of a rooftop greening facility according to the present invention, and FIG.
(D) show examples of such embodiments.

FIG. 3 is a longitudinal sectional view conceptually showing a form of a rooftop surface subjected to waterproofing work to which the drainage structure of the rooftop greening equipment of the present invention can be applied, and FIGS. An embodiment example will be described.

FIG. 4 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 5 is a plan view showing a conventional rooftop greening facility, and FIG.
5A is a plan view, and FIG. 5B is a cross-sectional view taken along line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rooftop greening equipment 2 ... Partition 2a ... Extension partition member 2b ... Corner partition member 2e ... Edge 3 ... Drainage channel 3a-3d ... Water channel member 4 ... Drain for rainwater 5 ... Body of a roof structure 5a ... Insulation material 5b ... Walking Board 6 ... Waterproof sheet 6a ... Joining belt Ra ... Planting area Rb ... Non-planting area F, F1, F2 ... Roof floor S ... Soil

Claims (2)

[Claims] 1. A drainage channel is provided at the bottom of a greening facility installed on a rooftop floor, one end of which is open on the outer side of the upper partition of the rooftop greening facility, and the other end is open on the outer side of the lower partition of the slope. The drainage structure of the rooftop greening facility, 2. The drainage structure according to claim 1, wherein the cross section of the drainage channel has an inverted groove shape.