JP2003158914A - Set for planting natural turf on roof, and planting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a natural turf planting set on the roof of a building, at a low cost and provide a planting method for the turf. <P>SOLUTION: The planting set is provided with plural space-forming members 12 placed on a roof, and composed of a substrate 13a having a number of protrusions 13b and a water-permeable sheet 14 bonded to the protrusions to form spaces for passing water and air around the protrusions 13b, a root- proofing sheet 16 placed on the space-forming member 12 and suppressing the intrusion of the root of the turf while allowing the permeation of water and a greening base 17 for turf planting use, placed on the root-proofing sheet 16, having air-permeability and water-retention and formed in the form of a plate resistant to treading pressure. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting set for planting natural grass on a rooftop or a balcony of a building, or on a rooftop or the like (hereinafter simply referred to as a rooftop) or the like. , And the method of planting natural grass on the rooftop, etc.

[0002]

2. Description of the Related Art It has been conventionally known to lay artificial grass on the roof of a building. However, artificial grass is far inferior to natural grass in terms of moisturizing and comforting people, so rooftop greening with natural grass on the veranda of the building or on the roof is desired, but against rainwater When planting natural grass on a rooftop that has been waterproofed, there is a problem that growing management including irrigation is required and irrigation equipment and the like are required, resulting in high cost. In order to prefer good soil, if the above irrigation equipment is not suitable for natural grass, or if drainage partially accumulates,
There was a problem that the growth of grass was hindered by root rot and it was necessary to replace the grass frequently.

[0003]

The technical problem of the present invention is that natural grass can be easily planted on the roof of a building at low cost, and the lawn planting can be managed easily and at low cost. (EN) Provided is a natural turf planting set and a method for planting natural turf on the roof or the like. Another technical object of the present invention is to provide a set for planting natural grass and a method for planting the same, which can enhance air permeability and drainage, which are the most important factors for growing grass.

[0004]

A natural turf planting set according to the present invention for solving the above-mentioned problems involves bonding a water-permeable sheet onto the projections of an uneven plate material having a large number of projections on a substrate. A gap forming member laid on a rooftop or the like, which is a gap for passing water and ventilation around the plurality of protrusions, and is placed on the gap forming member to allow passage of water. , A root-controlling sheet that suppresses the infiltration of grass roots, and a natural lawn that is placed on the root-controlling sheet, has breathability and water retention, and is formed into a plate shape that has pressure resistance to treading. It is characterized by having a greening base material for planting.

In a preferred embodiment of the natural grass planting set, the greening base material contains ultra-light aggregate, binder, horticultural soil and water retaining material as components, and the planting set described above is used. The frame is provided with an edge plate that is higher than the gap forming member and has a plurality of grooves for water passage and ventilation at the lower end to surround the periphery of the gap forming member.

Further, the method of planting natural grass on a roof or the like according to the present invention comprises a plurality of gap forming members formed by joining a water-permeable sheet onto the projections of an uneven plate material having a large number of projections on a substrate. Laying them side by side on a rooftop, etc., placing a root preventive sheet on the gap forming member that allows water to pass but suppresses penetration of grass roots, and has air permeability and water retention on the root preventive sheet. And, it is characterized by placing a greening base material for planting a natural grass that has been preformed in a plate shape having withstanding pressure strength, and laying cut grass on the greening base material. is there.
In the above-mentioned planting method, the greening base material is an ultralight aggregate, a binder, a raw material for horticultural soil and a water retaining material are mixed with water and then filled into a molding / protecting case to be molded,
The case can be transported to the site as it is, and the molded greening base material can be taken out from the case on the site and placed on the root protection sheet placed on the gap forming member.

In the natural turf planting set of the present invention having the above-mentioned structure, the plurality of gap forming members are laid side by side on a rooftop or the like, and the root preventive sheet is placed on the gap forming members to prevent the protection. The above-mentioned planting base material for planting the above-mentioned natural grass is placed on the root sheet, and cut grass is laid on the planting base material to grow the natural grass. Since cut grass can be procured separately from the natural grass planting set of the present invention, it is not always necessary to add it to the planting set, but it may be provided in addition to the planting set.

The above-mentioned greening base material is such that the roots of the cut grass laid on the greening base material can infiltrate into the greening base material to absorb moisture and nutrients, and have air permeability and water retention. And, since it is formed into a plate shape having withstand pressure strength, it is suitable for the growth of natural grass, and even if a person walks on the greened base material laid with natural grass, the greened base material is It does not break, and can be easily placed on the root-preventing sheet that has been produced in the factory in advance and placed on the gap forming member, and the construction period can be shortened. In the gap forming member, the space around the large number of protrusions on the substrate serves as a gap for water passage and ventilation,
Excess rainwater and excess irrigation water are drained and discharged through a drainage facility such as a waterproof rooftop, and as a result, the most important drainage property for turf growth can be enhanced. On the other hand, since air circulates through the gaps for water passage and ventilation of the gap forming member, it is possible to enhance the air permeability for preventing root rot.

As described above, according to the planting set and the planting method of the present invention, natural grass can be easily planted on the roof of a building at a low cost, and the management of grass planting can be performed. ,
It can be performed easily and at low cost, and since sufficient consideration is given to drainage and air permeability, root rot can be effectively suppressed. In addition, the above-mentioned greening base material can be formed by mixing the raw material components of the ultralight aggregate, the binder, the horticultural soil and the water retaining material with water, and then filling the case for molding and protection and molding the case as it is. The molded greening base material is taken out of the case at the site and placed on the root-protecting sheet placed on the gap forming member. It is economical because it is protected from damage during transportation and the molding / protection case can be reused any number of times.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION FIGS. 1 to 3 show a planting set for natural grass and a mode of use thereof according to the present invention. The planting set is installed on a roof 2 or the like of a building. A plurality of gap forming members 12 arranged closely side by side on top of each other, a root-preventing sheet 14 placed on the gap-forming member 12, and a natural grass placed on the root-preventing sheet 14 are planted. A greening base material 17 for this purpose, an edge plate 20 for surrounding the plurality of gap forming members 12, and a cut grass 18 laid on the greening base material 17. Since the cut grass 18 can be purchased separately and the edging plate 20 may not be necessary depending on the installation location, the cut turf 18 and the edging plate 20 can be omitted from the planting set.

More specifically, the gap forming member 12 described above.
Is a synthetic resin-made concavo-convex plate material having a large number of protrusions 13b on a substrate 13a. Is formed so as to form a space around the large number of projections 13b which serves as a gap for water passage and ventilation. The root-preventing sheet 16 is a known one that allows the passage of water through the fine gaps between the fibers but prevents the roots of the grass from entering. Further, the greening base material 17 for planting the above-mentioned natural turf is a plate-shaped material having air permeability and water retention, and also has a resistance to trampling, and has foam with strong surface. The resin particles or ultra-lightweight aggregates equivalent thereto (for example, hard pearlite), binders (for example, ordinary cement), horticultural soil and water retaining materials (for example, peat moss) are used as components.

The greening base material 17 is the ultra-lightweight aggregate,
The binder (ordinary cement), horticultural soil, and water retention materials are mixed with water at a mixing ratio that provides appropriate breathability, water retention, and resistance to pressure when used, and then the mixture is molded. It is filled in the case for protection and protection 25 and formed into a plate shape. The molding / protection case 25 is made of synthetic resin and has a rectangular parallelepiped shape with an open upper surface, as shown in FIG. Since the greening base material 17 is filled in the molding / protecting case 25 and is molded and transported to the site, it is not damaged during transportation, and the greening base material 17 is taken out at the site. Case 2 for molding and protection after molding
5 is economical because it can be reused.

The edging plate 20 has a height higher than that of the gap forming member and has a plurality of grooves 21 for water passage and ventilation at the lower end, and the height thereof is the same as the height of the gap forming member 12 and the above. The total height of the greening base material 17 or the height of the cut grass 18 added thereto,
The height of the groove is preferably substantially equal to the height of the gap forming member, but is not necessarily limited to these. When the planting set is installed on a rooftop or the like, the plurality of gap forming members 12 are laid side by side on the rooftop, and the gap forming members 12 are surrounded by the edging plate 20. On the above-mentioned root protection sheet 16
On the root-preventing sheet 16 and the above-mentioned greening base material 17
Place the cut grass 18 on the greening base material 17,
Then, the cut grass 18 is watered. The cut grass 18 grows when the roots of the grass penetrate the greening base material 17 to absorb moisture and nutrients.

Since the above-mentioned greening base material 17 is formed into a plate shape having air permeability and water retention and also has a resistance against trampling pressure, it is suitable for growing natural grass, and at the same time, it is suitable for growing natural grass. Even if a person walks on the laid green base material 17, the green base material 17 is not broken, and can be easily placed on the root-control sheet 16 placed on the gap forming member 12. it can. The gap forming member 12 is a substrate 13a.
Since the space around the large number of protrusions 13b above serves as a gap for water passage and ventilation, excess rainwater and excess irrigation water are drained,
These are discharged through a drainage facility such as a waterproof rooftop, and as a result, the drainage property, which is most important for growing grass, can be enhanced. On the other hand, since air circulates through the gaps for water passage and ventilation of the gap forming member 12, it is possible to enhance the air permeability for preventing root rot.

[0015]

As described in detail above, according to the present invention,
Natural turf can be easily planted on the roof of a building at low cost, and turf planting can be managed easily and at low cost. Moreover, ventilation and drainage are the most important for turf cultivation. It is possible to provide a set for planting natural turf and a method for planting the same, which can improve the property.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of a set for planting natural grass according to the present invention.

FIG. 2 is a partially cutaway perspective view of the same construction state.

FIG. 3 is a vertical cross-sectional view showing a greening base material used for construction and a case for forming and protecting the same.

[Explanation of symbols]

2 Installation surface 12 Gap forming member 13a substrate 13b protrusion 14 Water-permeable sheet 16 Root sheet 17 Greening base materials 18 cut grass 20 edging board

Continued front page    (72) Inventor Ryoji Okawara             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Koichi Nagase             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Hirofumi Toda             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Yahashita ▲ Ryo ▼             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. F-term (reference) 2B022 AA03 AB04 BA04 BA16 BA22                       BB01

Claims (5)

[Claims] 1. A rooftop formed by joining a water-permeable sheet to the projections of a concavo-convex plate material having a large number of projections on a substrate to form a space around the plurality of projections for water passage and ventilation. A gap forming member laid on the above, the root forming sheet placed on the gap forming member, which allows the passage of water but suppresses the penetration of grass roots, and is placed on the root forming sheet, A natural grass to be laid on a rooftop or the like, which is provided with a greening base material for planting a plate-shaped natural grass that is breathable and water-retaining and has a pressure resistance against trampling. Planting set. 2. The greening base material is an ultralight aggregate, a binder,
The natural turf planting set according to claim 1, which comprises garden soil and a water retention material as components. 3. The planting set is provided with an edging plate which is higher than the gap forming member and has a plurality of grooves for water passage and ventilation at the lower end to surround the periphery of the gap forming member. The plant set for planting natural grass according to claim 1 or 2, characterized in that. 4. A plurality of gap forming members formed by joining a water-permeable sheet onto the protrusions of an uneven plate material having a large number of protrusions on a substrate are laid side by side on a rooftop or the like, and water is placed on the gap forming members. A root preventive sheet is placed which allows passage but suppresses penetration of grass roots, and has air permeability and water retention on the root preventive sheet, and
A natural grass on a roof, etc., characterized in that a greening base material for planting a natural grass preformed in a plate shape having withstanding pressure resistance is placed, and cut grass is laid on the greening base material. Planting method. 5. The greening base material is prepared by mixing raw material components of foamed resin particles or super light weight aggregates equivalent thereto, binders, horticultural soil and water retaining materials with water and then filling the molding / protective case. And then transporting the case to the site as it is, taking out the molded greening base material from the case at the site and mounting it on the root-proof sheet mounted on the gap forming member. The method for planting natural grass on a roof or the like according to claim 4.