JP3648662B2 - Covering structure of sloped roof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soil covering structure for planting on a sloped roof of a building.
[0002]
[Prior art]
When building in a green area, so as not to destroy the surrounding environment, planted on the roof of the building (bank), so that the building exists under the trees of a small hill Sometimes planning a unique building that looks like it. In particular, it is suitable for public buildings such as art museums and museums, has a unique and sleek appearance, and gives a good impression that it blends brilliantly with green spaces.
[0003]
[Problems to be solved by the invention]
In order to form the above-mentioned building, a sloped roof is suitable for minimizing the amount of covering by the embankment, waterproofing is applied to the surface of the sloped roof, and a embankment having a height of about 1 m is formed on the roof. It is necessary to plant trees. And the maintenance of semipermanent covering soil, the complete waterproofness of a gradient roof, and the moderate water retention for a tree to grow are requested | required. In particular, it is strongly required that the soil cover does not run out of sediment during heavy rains and does not collapse due to shaking of the building during an earthquake.
[0004]
The present invention has been made to meet such a demand, and in the case of planting a tree by covering with a soil on a sloped roof of a building, a sufficient cover retaining function, a waterproof function of the sloped roof, and tree growth The purpose is to provide a cover structure for sloped roofs with moderate water retention function.
[0005]
[Means for Solving the Problems]
As a means for achieving the above object, the present invention provides a method for placing stepped concrete on the sloped roof and planting the edge of the stepped concrete when planting the soil on the sloped roof. Cotter concrete is placed on the surface, a waterproof layer is provided on the surface of the sloped roof including these, and the concrete is placed on the waterproof layer, and a water permeable mat is laid thereon, The gist of the soil covering structure of the sloped roof is characterized in that an earth retaining member having a lower part fixed to the pressing concrete is erected.
In addition, the waterproof layer is composed of a waterproof coating, a polyethylene film or a nonwoven fabric, a sheet-based waterproofing material, and a heat insulating material such as a polystyrene foam with a double-sided polyethylene film in order from the bottom,
The heat insulating material was provided with a groove to discharge the water that entered the holding concrete,
The earth retaining member was composed of a lattice-shaped member, a reinforcing material, and a net,
Is the gist.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In FIG. 1, reference numeral 1 denotes a building body, and stepped concrete 3 is placed on an inclined concrete surface of a sloped roof 2 along a sloped surface, and cotter concrete is placed at a lower end of the horizontal surface portion 3 a. 4 are provided.
[0007]
A waterproof layer 5 is provided so as to cover the entire surface of the sloped roof 2 including the stepped concrete 3 and the cotter concrete 4. As shown in FIG. 3, the waterproof layer 5 has a waterproof coating 6 at the bottom, a polyethylene film or nonwoven fabric 7 is laid on the waterproof coating 6, and a sheet-based waterproof material 8 is stretched on the waterproof coating 6. It has a multilayer structure in which a heat insulating material 9 made of polystyrene foam with double-sided polyethylene film or the like is attached. A drainage groove 9 a is provided in the lower part of the heat insulating material 9 along the inclination direction of the sloped roof 2.
[0008]
Returning to FIG. 1, reference numeral 10 denotes pressing concrete, which is placed on the waterproof layer 5, and a water-permeable mat 11 is laid thereon as shown in FIG. 2. The presser concrete 10 is preferably lightweight concrete.
[0009]
When placing the presser concrete 10, the earth retaining members 12 are erected at a plurality of positions along the inclined surface of the sloped roof 2. For example, as shown in FIG. 2, the earth retaining member 12 includes a substantially L-shaped grid-like reinforcing bar 12 a erected with the lower part fixed to the pressing concrete 10 and the like, and the like, It is composed of a synthetic resin net 12b stretched on the rising portion and a reinforcing material 12c.
[0010]
Reference numeral 13 denotes a cover soil buried on the sloped roof 2. An appropriate tree 14 is planted in the cover soil 13, and the earth retaining member 12 is embedded in the cover soil 13.
[0011]
In the covering structure of the sloped roof according to the present invention configured as described above, the holding concrete 10 that also serves as a waterproof curing does not slide due to the weight of the covering 13 or the shaking of the building body 1 during an earthquake, Further, there is a concern that the covering soil 13 itself will not slip due to rain water or the like, but in the case of the present invention, sufficient countermeasures are taken against these slips.
[0012]
That is, for the slip of the presser concrete 10, the horizontal position is held by the stepped concrete 3, and the cotter concrete 4 provided at the lower end of the horizontal plane part 3a functions as a stopper. The concrete 10 is reliably prevented from sliding down and is stably held on the sloped roof 2.
[0013]
On the other hand, against the slip of the covering soil 13, the covering member 13 is sufficiently prevented from slipping by the retaining member 12. Accordingly, the cover soil 13 can be stably held even during a heavy rain, and rainwater and the like that has penetrated into the cover soil 13 is quickly collected by the water-permeable mat 11, and excess rainwater flows down the upper part of the sloped roof 2. And discharged to the outside.
[0014]
Even if rainwater or the like infiltrates into the pressing concrete 10, the waterproof layer 5 is below it, and is quickly drained by the groove 9 a of the heat insulating material 9 positioned at the uppermost layer of the waterproof layer 5. Under the sheet-based waterproofing material 8, the polyethylene film 7 or the nonwoven fabric, and the waterproof coating film 6 as described above, rainwater does not penetrate to the surface of the sloped roof 2. Therefore, it does not leak into the building body 1 and the waterproof function is perfect.
[0015]
Regarding water retention for the growth of the tree 14, rainwater or the like that has permeated the cover soil 13 is collected in the water permeable mat 11, and excess rainwater is drained as described above, but an appropriate amount of rainwater is retained and the cover soil 13 is retained. There is no need to worry about drought because it also exhibits adequate water retention.
Moreover, as shown in FIG. 2, since the water-permeable mat 11 has a shallow recess 11a in the horizontal plane portion due to the protrusion of the cotter concrete 4, the recess 11a also contributes to the water retention function.
[0016]
【The invention's effect】
As described above, according to the present invention, the stepped concrete and the cotter concrete are placed on the sloped roof, the earth retaining member is provided, and the double structure is formed by the grid member and the net. It is possible to sufficiently exhibit the holding function, and to sufficiently hold the cover soil even during torrential rains or earthquakes, and to prevent sliding and collapse.
In addition, a waterproof layer consisting of multiple layers is provided on the surface of the sloped roof, and the pressing concrete is placed on it, so that it can exhibit a semipermanent superior waterproof function, thereby completely preventing the rain leak of the sloped roof. There is an effect to prevent.
In addition, since a permeable mat is laid on the presser concrete, excess rainwater that has infiltrated the cover soil can be quickly drained during concentrated rainfall, and moderate rainwater can be retained to demonstrate water retention functions for tree growth. Excellent effects such as being able to
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing one embodiment of a soil covering structure for a sloped roof according to the present invention.
FIG. 2 is an enlarged cross-sectional view of a part of FIG.
FIG. 3 is an explanatory view showing a structure of a waterproof layer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Building body 2 ... Gradient roof 3 ... Stepped concrete 4 ... Cotter concrete 5 ... Waterproof layer 6 ... Waterproof coating 7 ... Polyethylene film or nonwoven fabric 8 ... Sheet-based waterproofing material 9 ... Thermal insulation material 10 ... Pressing concrete 11 ... Water permeability Mat 12 ... Earth retaining member 13 ... Covering soil 14 ... Tree

Claims (4)

In the case of planting by covering over a sloped roof, stepped concrete is placed on the sloped roof, and cotter concrete is placed at the end of the stepped concrete, and these are included in the sloped roof. A waterproof layer is provided on the surface of the waterproof cover, pressing concrete is placed on the waterproof layer, a water-permeable mat is laid thereon, and a retaining member having a lower part fixed to the pressing concrete is erected. Covering structure of sloped roof characterized by 2. The soil covering structure for a sloped roof according to claim 1, wherein the waterproof layer is composed of a waterproof coating, a polyethylene film or a nonwoven fabric, a sheet waterproof material, and a heat insulating material such as polystyrene foam with a double-sided polyethylene film in order from the bottom. The covering structure for a sloped roof according to claim 2, wherein the heat insulating material is provided with a groove for discharging water that has entered the holding concrete. The earth covering member according to claim 1, wherein the earth retaining member comprises a lattice member, a reinforcing material, and a net.

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