JP2002262655A - Method for greening roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for greening roofs that can stably fix the vegetation base on the roofs with good workability. SOLUTION: Vegetation sheets are stretched on the vegetation base prepared on the impermeable structure of the roofs. The vegetation sheet comprises a large-meshed net covered with thin flocculent sheet on one face and a mixture of one or more kinds plant seeds, fertilizer, soil conditioner, moisture retention agent are applied to the vegetative sheet by adhesion or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a house, a factory roof,
The present invention relates to a greening method for greening a roof portion of a building or the like, and particularly to a greening of a steel plate roof such as a tin.

[0002]

2. Description of the Related Art There is a known technique for laying soil on a rooftop, a balcony floor, or the like in order to green a building, and vegetation of trees, flowers, and the like. Water retention is important, and most of the existing buildings are not planned to have an excessive load. To vegetate on the roof or roof of such a building, the lightest possible vegetation base is used. Was desired.

[0003]

However, when the roof has a slope, it is not easy to stably fix the vegetation base, and there is a concern that surplus water may flow away. Also, the creation of a vegetation base on a roof is not easy to work and may be dangerous, so construction requires a relatively large amount of time and labor, and there is also a problem that the cost is high.

[0004] The present invention has been made in view of such circumstances,
It is an object of the present invention to provide a roofing greening method with good workability in which a vegetation base can be stably fixed even on an inclined roof.

[0005]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, according to the first aspect of the present invention, after the artificial soil is sprayed or sprayed on the roof having the water-blocking structure to form a vegetation base, a vegetation sheet is stuck thereon. It is characterized by. Also, after spraying or spraying artificial soil on the roof with a water-blocking structure to form a vegetation base, attach an erosion prevention net on it, and before attaching this net or before attaching the net, It is characterized by spraying a greening base material containing plant seeds and seedlings (claim 2). In addition, artificial soil is sprayed or sprayed on the roof with a water-blocking structure to form a vegetation base, and then the turf attached to the net is stuck on this vegetation record board. (Claim 3).

[0006] Because of the above solution, the vegetation base placed on the roof is covered with a vegetation sheet, an erosion prevention net, and a turf with a net.
Prevents raindrop erosion after construction and migration due to rainwater flowing on the roof, and forms a stable vegetation base.Appropriate moisture and nutrients for plant seeds, seedlings such as sedum or fresh turf laid on this base To ensure that the roof is green.

[0007] Further, the artificial soil is composed of a combination of lightweight materials composed of porous minerals and organic substances, so that it is lightweight and does not apply an excessive load to the roof. There are methods to introduce artificial soil to the roof, such as by spraying lightweight artificial soil or using a blower, but by using the blower as a means of transporting and spraying the base material, the noise at the time of spraying is low, Even when the surface to be sprayed is sprayed on a smooth surface such as a roof, the sprayed base material has less rebound, and by using a blower, the water content of the sprayed base material can be suppressed to a relatively low level. Construction was made possible.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a greening base structure for a roof portion and a greening method for the same according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an outline of a roof greening method according to a first embodiment. In the drawing, reference numeral 1 denotes a roof of a building such as a house, and 2 denotes a water-impervious structure laid on a shingle ( A vegetation base formed by spraying the water-impervious sheet 2 on the water-impervious sheet 2 is mainly composed of porous minerals such as perlite and vermulite, organic substances such as bark compost and peat moss, and if necessary. Spraying artificial soil 4 mixed with soil improver to improve water retention and water retention of superabsorbent polymer and fertilizer containing various kinds of fast-acting fertilizer, slow-acting fertilizer and slow-acting fertilizer. , Formed by sowing.

[0009] From the viewpoint of fire prevention, it is preferable that the artificial soil 4 is mainly composed of a porous mineral as a main material. I do. The artificial soil 4 containing these various materials is suitable for a blower type spraying machine if its apparent specific gravity is 0.1 to 0.5 g / cc.

The vegetation base 3 is formed when the roof is flat, or when the slope is gentle (about 10 degrees or less), and the above-mentioned artificial soil 4 is formed by spouting. Is formed by spraying. The thickness of the vegetation base 3 made of the artificial soil 4 is about 5 to 15 cm, and about 10 cm in consideration of economy and water retention.

If the roof has a slope, a net 5 may be attached to the roof to stabilize the vegetation base 3 before the artificial soil 4 is scattered or sprayed. The movement and outflow of the formed vegetation base 3 is prevented.
As an example of the net 5 to be used, a coarse net 5 made of a natural material such as a coconut or a jute and woven with a thick thread having a diameter of 0.5 to 1.5 cm to a size of 2 to 5 cm can be used. . In addition, when durability is required, a plastic net such as polyethylene, a wire net, or the like can be used, and the mesh of these nets 5 is similar to the mesh described above. When a metal wire is used, it is preferable to apply a rust-proof coating or the like.

In this case, it is preferable to install spacers (not shown) at appropriate intervals on the water-impermeable sheet 2 so that the net 5 is present in the vicinity of the vegetation base 3 formed by spraying. is there. In addition, as net 5, φ2
It is possible to use a net or the like in which a coil having a circular or elliptical diameter of about 5 cm is woven in parallel, a rope-shaped or a rod-shaped body attached at an appropriate interval between the nets, and a dam member installed.

The artificial soil 4 may be a mixture of plant seeds, if necessary. As seeds to be mixed with the vegetation base material, for example, bermudagrass, creeping red fescue, bentgrass, and the like can be used.

As the above-described water-blocking structure 2, a water-blocking and durable material is preferable. For example, a plastic sheet such as polyethylene or vinyl chloride or a rubber sheet can be used. Thicknesses of about 1 to 2 mm having sufficient strength can be used.

As described above, the vegetation sheet 6 is stretched on the vegetation base 3 formed on the waterproof structure 2 of the roof. The vegetation sheet 6 has a thin cotton-like sheet attached to one side of a coarse net, and a plant seed 7a and a fertilizer,
A material obtained by mixing at least one kind of a soil improving material, a water retaining material, and the like and attaching them by means such as adhesion can be used. As the other vegetation sheet 6, a sheet in which seeds, fertilizers and the like are sandwiched on a water-disintegrable sheet, a sheet in which a coarse net is attached thereto, and the like can be used. Nets used for the vegetation sheet 6
Those made of corrosive fibers such as coconut or jute are preferred in that they will not corrode and leave residue over time, but if the roof is steep and durability is desired, plastic fibers such as polyethylene can be used. Can also be used.

As the plant seed 7a to be attached to the vegetation sheet 6, it is possible to use native turf or wild turf such as bermudagrass, creeping red fescue, bentgrass and the like. Others that can be handled in the same manner as seeds include those obtained by cutting vegetative bodies of succulent plants such as sedum and those obtained by cutting vegetative bodies 7c of mosses.

As a second embodiment of the present invention, plant seeds 7b, cut pieces of moss and sedum vegetative bodies 7c are sprayed on the vegetation base 4, and a coarse erosion preventing net is placed thereon. In this case, the plant seeds 7b and the vegetation bodies 7c of moss and sedum can germinate and grow on the vegetation base 3 without moving or running off, and cover the roof with beautiful greenery. It can contribute to the improvement of the global environment and can alleviate the room temperature of buildings. As a concrete construction method, the seeds 7b and 7c may be sprayed on the vegetation base 3 as they are, but a method of mixing the seeds 7b and 7c with a soil improving material and the like and spraying with water can be adopted. .

As the erosion preventing net 8 which can be used in this embodiment, a corrosive palm fiber, jute or the like, a biodegradable plastic or a photo-decomposable plastic net is preferably used because it disappears after the growth of the plant. It is. The mesh of the net is about 2 to 10 cm. If the roof has a steep slope and the net needs to be present for a long period of time, a plastic net such as polyethylene may be used. Other examples of the erosion prevention net 8 include a coarse corrosive net and a net with thin cotton in which thin flocculent fiber is adhered to a corrosion-resistant net with a water-soluble adhesive. When used as described above, the effect of preventing the dispersal of the plant seeds 7b and the seedlings 7c from moving and spilling becomes more reliable.

As another example of this embodiment, the above-mentioned erosion preventing net 8 may be stretched on the vegetation base 3 and then the above-mentioned plant seeds 7b and moss / sedums 7c may be sprayed. These seeds and other organic fibers such as pulp and thickeners
When the sizing agent is mixed with water and sprayed, the seeds and the like settle on the vegetation base 3 through the net more reliably. According to this method, compared to the above-described method, it is preferable in that an operator does not enter the vegetation base 3 on which the seeds and the like are scattered, and the vegetation base 3 is not damaged.

As the plant seed 7b used in this embodiment, western turf such as vermuda grass, creeping red fescue, bentgrass and the like can be used, and a grass species having a relatively short height is selected and used. Other native species such as wild turf can also be used if the time of use is limited to high temperatures.

In the third embodiment of the present invention, a turf 9 with a net is laid on the vegetation base 3. The raw turf 9 with the net is formed by tying a rhizome such as a wild turf or a western turf to a coarse net having a mesh size of 2 to 10 cm in advance, or by laminating a net and a raw turf mat and sew coarsely. They are integrated by a method. The turf 9 with such a net is attached to the vegetation base 3 formed on the roof.
When laid on the top, a beautiful green roof appears immediately after the laying, and in comparison with the other examples, it withstands natural phenomena such as rainfall immediately after the construction, and the vegetation base 3 runs away or collapses. There is no stable roof greening.

The net used in this embodiment is suitable because a net made of corrosive fibers such as coconut fiber, jute fiber, cotton, rayon and the like is corroded and disappears after vegetation has sufficiently settled on the vegetation base. . However, when the roof is steep or the like, a net made of corrosion-resistant, long-lasting polyethylene or the like may be used.

[0023]

As described above, according to the roof greening method of the present invention, a water-blocking structure such as a water-blocking sheet is laid on the roof, and a vegetation base is formed thereon. The method of laying vegetation sheets, erosion prevention nets, or turf with nets on the top enables reliable and economical greening of the roof, improving the roof landscape and the indoor room temperature of the building. Can reduce the sudden rise and fall caused by the outside air, make it possible to set a comfortable indoor temperature and contribute to energy saving.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of a greening structure for a roof portion of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of a greening structure for a roof portion according to the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the roof greening structure of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roof part, 2 ... Water barrier structure, 3 ... Vegetation base, 6 ... Vegetation sheet, 8 ... Erosion prevention net, 9 ... Raw grass with net.

Claims (3)

[Claims] An artificial soil is sprayed or sprayed on a roof having a water-blocking structure to form a vegetation base, and a vegetation sheet is stuck on the vegetation base to perform construction. . 2. An artificial soil is sprayed or sprayed on a roof having a water-blocking structure to form a vegetation base, and then an erosion prevention net is stuck thereon, and this net or the net is stuck. A greening method for a roof, comprising spraying a greening base material containing plant seeds and seedlings before. 3. An artificial soil is sprayed or sprayed on a roof having a water-blocking structure to form a vegetation base, and then a turf attached to a net is stuck on the vegetation record board. A greening method for roofs.