JP3238604B2 - Covered roof structure and covered roof construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earth-covered roof structure and an earth-covered roof, in which lawns and the like can be planted on the roof or balcony of a building.
Related to the roof method .

[0002]

2. Description of the Related Art Conventionally, in a building having a roof or a balcony, such as a building or a house, the floor of the roof or a balcony is used in order to effectively use the space on the roof or the balcony and utilize natural wind and light. In addition, techniques for laying soil, planting trees, planting lawns, and greening are known.
In order to grow trees and lawns for greening the rooftop and the like, it is important to secure the water retention performance of the soil, and to ensure the durability of the rooftop and the like, waterproof performance is required. For example, as shown in FIG. 5, the planting portion on the roof (or balcony) has a roof slab (concrete floor) 20.
Waterproof layer 21, root prevention layer 22, drainage layer 23,
The water retention layer 24 is formed, and the soil (or artificial lightweight soil) 25 is laid thereon to plant the lawn S. In this way, the water permeating from the soil 25 is stored through the water retaining layer 24, water required for growth is retained, and excess water exceeding the water retaining capacity of the water retaining layer 24 is discharged to the drainage layer. Lead to the drain through 23 and drain,
The roots 22 prevent the roots of the lawn S from damaging the waterproof layer 21, prevent moisture from penetrating into the concrete portion, and allow the lawn S to grow.

[0003]

However, the configuration according to the above-mentioned prior art is based on the premise that a large-area roof such as a building is used, and it is costly to use the roof on a narrow house or a balcony. The problem of passing too much occurred. That is, the waterproof layers 2 are sequentially arranged from the upper surface of the roof slab 20.
1. Since it has a five-layer structure of the root prevention layer 22, the drainage layer 23, the water retention layer 24, and the soil 25, the configuration is complicated and takes a lot of time to construct, causing an increase in the construction period, and the number of components is reduced. Many were costly. In view of the above, the present invention provides an inexpensive earth-covered roof structure and a simple and inexpensive construction that ensures a sufficient water retention effect in a configuration in which trees and lawns can be grown to green the roof or balcony of a house.
The purpose is to provide a mud roof construction method .

[0004]

Means for Solving the Problems As means for solving the above problems, the present invention is constituted as follows. In claim 1, a soil-covered roof that is planted with lawns or trees on the roof or balcony of a building to be greened, and a waterproof layer having root resistance is laid in order from the bottom on the roof or balcony floor. Laying a water retention layer composed of a water retention mat on the waterproof layer, further laying a highly drainable soil on the upper surface of the water retention layer to form a soil-covered roof, and the surface of the water retention mat constituting the water retention layer Has a substantially mountain-like shape in a side view, forming a continuous projection in a lattice shape in a plan view, and forming a recess surrounded by a grid portion through the continuous projection, and forming the recess in the recess. Providing a covered roof structure characterized by being able to store moisture supplied to highly drainable soil
To offer. In claim 2, the roof of a building
Or a burial ground where greenery is planted by planting lawns and trees on the balcony
On the roof or on the top of the balcony floor,
In order, lay a waterproof layer with root resistance, and
A water retention layer composed of water retention mats is laid on
Highly drainable soil is spread over the upper surface of the water layer to form a covered roof
To the surface of the water retention mat that constitutes the water retention layer
Has a substantially chevron shape in a side view, and is continuous in a lattice shape in a plan view.
Forming a projection, via the continuous projection, a grid-like portion
To form a recess surrounded by
The supplied water can be stored, and rainfall differences and planting
Depending on the type of plant to be planted and other conditions,
Adjustment of water retention by using different water retention mats
The present invention provides an earth-covered roof construction method characterized by performing the following. In claim 3, the earth-covered roof construction according to claim 2
In law, a-holding water mat was cut into a desired shape, adjacent the grid-like projection portions located at the end of the mat, the dirt roof, characterized in that allowed to fix linked superimposed when laying It provides a construction method .

[0005]

According to this structure, for example, when a garden is constructed by planting lawns and trees on the roof and used for greening, a plurality of recesses formed through projections on the upper surface of the water retention mat. Since water can be retained, the highly drainable soil can always be maintained in an optimal state. Also, when constructing the water retention mat, cut to the desired size, overlap the protrusions located at the edge of the adjacent water retention mat,
All that is required is to simply bond them with an adhesive tape.

[0006]

Next, an embodiment of the present invention will be described with reference to the accompanying drawings. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a plan view of a water retention mat, and FIG. 4 is an enlarged plan view of a corner of the water retention mat shown in FIG. And a side view.

In FIG. 1 and FIG. 2, a garden having a covered roof structure is formed on a rooftop A of a building, and the garden is composed of trees T.
And a lawn S is planted. On the upper surface of the concrete floor 10 (roof slab) on the roof A, a waterproof layer 1 having root resistance is formed.
A water retention mat 2 is provided on the waterproof layer 1 to form a water retention layer. A lightweight artificial soil 3 (or soil) having a high drainage property is spread over the water retention mat 2, and a tree T and a lawn S are planted on the lightweight artificial soil 3. Water is supplied to the lightweight artificial soil 3 by rainwater or irrigation, and the moisture spreads over the entire lightweight artificial soil 3 and is supplied to the trees T and the lawn S.

As shown in FIGS. 3 and 4, the water retention mat 2 is formed of a rectangular sheet-like member such as hard vinyl chloride, and has a surface protruding upward from a lower surface side in a side view. The projections 2a, 2a,
・ ・ Is formed. The projection 2a has a mountain shape in a side view, and its skirts 2b and 2b are curved surfaces. The recesses 2c, 2c,.
Are formed in the recesses 2c, 2c,..., And the water supplied by rainwater or irrigation and permeated from the lightweight artificial soil 3 is stored to enhance the water retention effect.

The recesses 2c and 2 of the water retention mat 2
The excess water that could not be completely stored in c... flows through the lightweight artificial soil 3, and the drainage portion 6 provided on the rooftop A quickly,
It can be discharged to the outside via a drain pipe or the like connected to it. The drainage section 6 includes a lightweight artificial soil 3.
A drain filter (hetimalone) 9 set to an eye smaller than the particle size is disposed as a drainage layer to prevent the lightweight artificial soil 3 from flowing into the drainage part 6 and the drainage pipe.

When the sheet-like water retention mat 2 is constructed, a predetermined number of sheets corresponding to the area of the garden formed on the roof A are prepared, cut into a predetermined shape, and laid one upon another. As an example, if the size of one sheet is shown, as shown in FIGS.
20 mm, the horizontal Y is 1520 mm, and the height h of the projection 2a is 20 mm.
And the width z of the hem is 6 mm, respectively,
The length of y (the length from the top to the top of the projection 2a) is set to 100 mm.

By changing the height h of the projection 2a, the water retention can be adjusted in accordance with the conditions such as the difference in rainfall between regions and the type of plant to be planted. I have. On the four sides of the water retention mat 2, edges 2d having a width of 10 mm are provided.
The part (when cut and used, the edge part) is overlapped when laying the water retention mats 2, 2..., And the main part is bonded with adhesive tape, etc., and it is lightweight when laying or after laying When the work of laying the artificial soil 3 is performed, it does not shift.

As described above, since the water is retained by the plurality of recesses 2c formed on the upper surface of the water retention mat 2 in the covered roof structure via the projections 2a, the lightweight artificial soil 3 is always kept in an optimum state. The structure can be maintained so that the lawn S and the tree T do not die due to insufficient water. In addition, by using the lightweight artificial soil 3, the weight can be reduced, and an excessive load is not applied to the structure.

A net 13 for supporting the tree T (for example, at a portion having a width of 1000 mm from the handrail) is provided at a position on the upper surface of the water retention mat 2 where the tree T is planted. Note that the configuration of this embodiment can also be used in a case where a lawn is planted on a balcony and is used after being greened. In addition, water supply hoses 4 are buried in the lightweight artificial soil 3 on the water retention mat 2 and the water supply hoses 4.
By automatically supplying moisture to the lightweight artificial soil 3 via the elements 4..., The grass S can be grown.

[0014]

As described above, the present invention has the following advantages. Claim 1 is an earth-covered roof that is planted with lawns and trees on the roof or balcony of a building and is greened, wherein a waterproof layer having root resistance is laid in order from the bottom on the roof or balcony floor. Laying a water retention layer composed of a water retention mat on the waterproof layer, further laying a highly drainable soil on the upper surface of the water retention layer to form a soil-covered roof, and the surface of the water retention mat constituting the water retention layer Has a substantially mountain-like shape in a side view, forming a continuous projection in a lattice shape in a plan view, and forming a recess surrounded by a grid portion through the continuous projection, and forming the recess in the recess. Since the water supplied to the highly drainable soil can be stored, only the three layers of the waterproof layer 1 having the root resistance, the water retaining mat 2 and the lightweight artificial soil 3 are formed on the concrete floor 10 to cover the soil. It was a roof structure. In addition, since the water retention mat is formed in a sheet shape and provided with a lattice-shaped protrusion to have a shape capable of retaining water, the shape becomes simple and the manufacturing cost can be reduced. In addition, when the water retention mat is constructed, its shape is simple, so it can be cut easily with scissors or the like according to the laying position, and the grid-like projection serves as a measure, so the cutting position is easily determined. be able to.

According to a second aspect of the present invention, the earth-covered house according to the first aspect is provided.
Difference of rainfall by area in water retention mat in root structure
And the height of the protrusion according to the conditions such as the type of plant to be planted, etc.
By using water retention mats of different sizes,
Because it was a soil covered roof method characterized by making adjustments ,
The water retention is adjusted according to the conditions such as the difference in rainfall depending on the area and the type of plant to be planted, so that the highly drainable soil can always be maintained in an optimal state, which is necessary for the growth of trees and lawns. Moisture can be obtained, the trees planted on the lightweight artificial soil and the planted lawn can be prevented from withering due to insufficient water, and adverse effects on the growth of trees and lawn can be eliminated.

According to a third aspect of the present invention, there is provided the earth-covered house according to the second aspect.
In the root method, the water retention mat is cut into a desired shape,
The grid-like projections located at the ends of adjacent mats
Because the roofing method is characterized by overlapping, fixing and connecting when laying, at the time of construction, the water retention mat can be easily cut to the desired size as described above, and the adjacent water retention mat Overlap the protrusions located on the edge,
Since it is only necessary to bond with adhesive tape, it is possible to prevent the occurrence of displacement during and after laying, and it is easy to handle, it can be easily constructed, and the workability can be improved. The reduction can be achieved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

FIG. 3 is a plan view of a water retention mat.

FIG. 4 is an enlarged plan view and a side view of a corner of the water retention mat shown in FIG. 3;

FIG. 5 is a side sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof layer 2 Water retention mat 2a Projection part 2c Depression 3 Lightweight artificial soil A Rooftop S Lawn T Tree

Continuation of the front page (72) Inventor Kazuya Kusabe 4-2-1-14 Kawaramachi, Chuo-ku, Osaka City, Osaka Prefecture Inside of Tsutsunaka Sheet Waterproofing Co., Ltd. (56) References JP-A-4-99411 (JP, A) ( 58) Fields surveyed (Int. Cl. ⁷ , DB name) A01G 7/00

Claims (3)

(57) [Claims] Claims: 1. An earth-covered roof that is planted with lawns and trees on the roof or balcony of a building to be greened, and that a waterproof layer having root resistance is laid in order from the bottom on the roof or balcony floor, A water retention layer composed of a water retention mat is laid on the waterproof layer, and a highly drainable soil is laid on the upper surface of the water retention layer to form an earth-covered roof, and on the surface of the water retention mat constituting the water retention layer. Has a substantially mountain-like shape in a side view, forms a continuous protrusion in a lattice shape in a plan view, forms a recess surrounded by a grid-like portion through the continuous protrusion, and forms a high portion in the recess. An earth-covered roof structure capable of storing water supplied to drainage soil. 2. A lawn or a rooftop of a building or a balcony.
An earth-covered roof that is planted and greened by trees.
On the top of the Luconey floor, in order from the bottom,
A water layer is laid, and a water retention mat is formed on the waterproof layer.
Laying a water retaining layer with high drainage soil on the upper surface of the water retaining layer
To form a covered roof,
The surface of the constituent water retention mat has a substantially mountain shape in side view
To form a continuous projection in a lattice shape in plan view,
A recess surrounded by a grid-like portion is formed through the projected protrusion
The recess can store the water supplied to the highly drainable soil.
Noh, such as the difference in rainfall depending on the area and the type of plant to be planted
Use water retention mats with different projection heights
Is characterized by adjusting the water retention
Covered roof method . 3. The method according to claim 2, wherein
Te, a-holding water mat was cut into a desired shape, adjacent the grid-like projection portions located at the end of the mat, the Tsuchiya, characterized in that allowed to fix linked superimposed when laying
Root construction method .