Greening system for folded-plate roofs

Abstract

To provide a greening system for a folded-plate roof, capable of smoothly draining rainwater in the valleys of the folded-plate roof and preventing the loss of culture soil even when the amount of rainfall increases. [Solution] A greening system 1 is installed on a folded-plate roof 51 with alternating trapezoidal peaks 53 and inverted trapezoidal valleys 52. The greening system 1 includes a bag 4 that stores culture soil 3 to serve as a seedbed for greening plants 2, and a mat material 5 that is laid on the top surface of the valleys 52, with the bag 4 installed on the mat material 5. The greening system 1 also includes a wire rope 6, eyelets 7 attached to the bag 4, and seam gripping hardware 8 attached to the top surface of the peaks 53, and the wire rope 6 is inserted into the eyelets 7 and fastened to the fasteners 8, thereby fixing the bag 4 to the folded-plate roof 51. The wire rope 6 passes through the interior of the mat material 5 together with the eyelets 7.

Description

[Technical Field]

[0001] This invention relates to a greening system for folded-plate roofs, which greens the roof by installing bags filled with potting soil for growing plants. [Background technology]

[0002] Various proposals have been made for greening systems that plant plants on rooftops, roofs, etc. One type of greening system is a construction method and device that is applied to folded-plate roofs, which are widely used on roofs of factories, warehouses, gymnasiums, sports facilities, commercial facilities such as shopping malls, garages, carports, bicycle parking areas, etc. (See Patent Documents 1 to 3).

[0003] For example, Patent Document 1 proposes a construction method in which a waterproof coating layer is formed on the inner surface of the valley of a folded-plate roof, a root-resistant sheet is laid on top of that, and soil is spread evenly on top of the root-resistant sheet.

[0004] Patent Document 2 discloses a structure in which the valleys of a folded-plate roof are used as cultivation containers, and a vegetation mat made of a material such as rock wool or ceramic wool is set therein.

[0005] Patent Document 3 discloses a device in which fasteners are provided at the peaks of a folded-plate roof, planter-shaped units or planters are placed in the gaps in the valleys of the folded-plate roof, and these are fixed to the peaks to form an integrated unit. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-89090 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-166375 [Patent Document 3] Japanese Patent Application Laid-Open No. 2004-137895 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the construction method described in Patent Document 1, the culture medium installed in the valleys of the folded-plate roof is exposed to the external environment, so the culture medium deteriorates due to exposure to direct sunlight, frost, wind, etc., and there is also the risk of weed seeds flying in and contaminating the culture medium. This raises concerns that plant management, such as sunshades, snow removal, and weed removal, will require a lot of effort.

[0008] The structure described in Patent Document 2 also has a configuration in which the culture medium is set in the valleys of the folded-plate roof, so rainwater does not drain smoothly, and there is a risk that the culture medium will be washed away with the rainwater if the amount of rainfall increases. In addition, because the moist culture medium is in constant contact with the folded-plate roof, there is a problem that the folded-plate roof is easily damaged.

[0009] The device described in Patent Document 3 requires time and effort to install, and there is a risk that the culture soil will be blown away by the wind after installation. This leads to problems such as an increase in the number of work steps, the time required to replenish the culture soil, and clogging of gutters with the blown culture soil.

[0010] Furthermore, in the greening systems of Patent Documents 1 to 3, there is a risk that the seedlings of the greening plants will fall over if they are exposed to wind and rain before they have time to take firm root and grow. When seedlings fall over, the resistance of the greening plant seedlings is significantly reduced, resulting in problems such as poor rooting and growth inhibition due to seedling damage. For this reason, conventional greening systems require planting management to prevent seedlings from falling over.

[0011] This invention was made in consideration of the above-mentioned problems, and its primary objective is to realize a greening system for a folded-plate roof that can smoothly drain rainwater in the valleys of the folded-plate roof and prevent the cultivation soil from being washed away even when the amount of rainfall is high.

[0012] A second objective of this invention is to realize a greening system for folded-plate roofs that can reduce the labor required for planting management and prevents the potting soil from deteriorating or scattering due to exposure to direct sunlight, frost, wind and rain, etc. [Means for solving the problem]

[0013] This invention is a greening system to be installed on a folded-plate roof that has alternating trapezoidal peaks formed by inclined walls and top walls and inverted trapezoidal valleys formed by inclined walls and bottom walls.The system includes a bag body that stores potting soil to serve as a seedbed for greening plants, and a mat material that is laid on the top surface of the valleys of the folded-plate roof, with the bag body installed on top of the mat material.

[0014] The greening system of the present invention may comprise a wire rope, a ring-shaped member attached to the bag body, and a fastener attached to the upper surface of the peak of the corrugated roof, and may be configured so that the bag body is fixed to the corrugated roof by fastening the wire rope inserted into the ring-shaped member to the fastener.

[0015] In the case of the above configuration, the wire rope may be configured to be fastened to the fixture and also to the edge portion of the folded-plate roof.

[0016] In the above configuration, the wire rope may be configured to pass through the annular member attached to the bag body and also pass through the inside of the mat material.

[0017] In addition, in the case of the above configuration, the fixing device may be configured to be attached to a portion of the upper surface of the folded plate roof below which the tight frame is located.

[0018] In the present invention, the mat material may be a three-dimensional reticulated porous body formed by heating and melting a thermoplastic resin, extruding it from a nozzle, forming filaments, stacking them in a curled state, and welding the points of contact between the filaments.

[0019] In the above case, the mat material may be a three-dimensional reticulated porous body made of polypropylene.

[0020] In this invention, the bag body is configured to include a bag for storing potting soil that will serve as a seedbed for greening plants, an opening for placing seedlings that is provided on the upper surface of the bag when in use, a support portion that has a pair of support surfaces that rise upward from the opening edge of the opening when in use and that support the greening plant seedlings by sandwiching them between the support surfaces, and hook-and-loop fasteners attached to each of the support surfaces, and the annular member may be configured to be attached to the peripheral edge of the bag body. [Effects of the Invention]

[0021] The present invention's greening system for folded-plate roofs is a greening system to be installed on folded-plate roofs with a corrugated cross section, in which peaks and valleys are formed alternately in the direction of the wave shape. It comprises a bag body for storing potting soil that will serve as a seedbed for greening plants, and a mat material that is laid on the top surface of the valleys of the folded-plate roof, with the bag body installed on top of the mat material.

[0022] According to the above-mentioned structure, a mat with internal voids is first laid on the upper surface of the valley of the folded-plate roof, and then a bag containing compost for the greening plants is placed on top of the mat. This allows rainwater to drain smoothly below the bag, and prevents the compost from being washed away even in heavy rainfall. Furthermore, since the moist compost is not constantly in contact with the folded-plate roof, the roof is not prone to damage.

[0023] Furthermore, since the potting soil is stored in the bag, it will not deteriorate due to exposure to direct sunlight, frost, wind, rain, etc. Furthermore, weed seeds will not be blown into the potting soil, and there is no risk of the potting soil being blown away by the wind. This reduces the effort required for planting management, such as providing protection from rain and wind.

[0024] The greening system of the present invention includes a wire rope, a ring-shaped member attached to a bag body, and a fixing device attached to the upper surface of the peak of the corrugated roof, and includes a configuration in which the bag body is fixed to the corrugated roof by fastening the wire rope inserted into the ring-shaped member to the fixing device.

[0025] According to the present invention, the bag containing the compost used as a seedbed for green plants is firmly secured to the roof with wire ropes. This increases the strength of the bag, further reducing the risk of the bag being displaced by wind or the compost being blown away by wind. It also prevents problems such as the gutters being clogged with blown-away compost.

[0026] In the greening system of the present invention, the mat material may be a three-dimensional reticulated porous material formed by heating and melting a thermoplastic resin, extruding it from a nozzle to form filaments, stacking them in a curled state, and welding the points of contact between the filaments.The greening system of the present invention also includes a form in which the mat material is a three-dimensional reticulated porous material made of polypropylene.

[0027] According to the present invention having the above-mentioned configuration, the drainage properties of the mat material laid on the upper surface of the valley portion of the folded-plate roof are extremely excellent, further enhancing the effect of smoothly draining rainwater at the bottom of the bag body.

[0028] The greening system of the present invention includes a configuration in which the bag body is provided with a support portion that supports the greening plant seedlings by sandwiching them between a pair of support surfaces that rise upward from the opening edge of the opening.

[0029] According to the present invention, by closing the hook-and-loop fasteners on the support surfaces, the seedlings of the greening plants can be supported by being sandwiched between the support surfaces, which prevents the seedlings of the greening plants placed in the openings from falling over. [Brief explanation of the drawings]

[0030] [Figure 1] FIG. 1 is a partial plan view of a greening system according to this embodiment, seen from above. [Figure 2] FIG. 2 is a side view of the greening system of FIG. 1. FIG. [Figure 3] FIG. 3 is a partially enlarged view of FIG. [Figure 4]FIG. 4 is a diagram showing a bag body used in the greening system of this embodiment, where (a) is a plan view seen from above, (b) is a front view seen from the front, and (c) is a cross-sectional view taken along line AA. [Figure 5] FIG. 5 is a diagram showing the nonwoven fabric sheet constituting the bag of FIG. 4 laid flat and spread out. [Figure 6] FIG. 6 is a diagram showing the cross-sectional shape of a folded-plate member that constitutes a folded-plate roof. [Figure 7] FIG. 7 is a perspective view showing a partially cutaway folded-plate roof on which the greening system according to this embodiment is installed. [Figure 8] FIG. 8 is a diagram showing a configuration in which the fastener is attached to a portion of the peak of the folded-plate roof below which a tight frame is present. DETAILED DESCRIPTION OF THE INVENTION

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the following embodiments are merely examples of the present invention and are not intended to limit the scope of the present invention, its applications, or its uses.

[0032] [Present embodiment] This embodiment is a greening system for a folded-plate roof (hereinafter simply referred to as "greening system 1") intended for a folded-plate roof 51, which is widely used as the roof of a factory, warehouse, gymnasium, sports facility, commercial facility such as a shopping mall, garage, carport, bicycle parking area, etc.

[0033] The folded-plate roof 51 has a corrugated cross section, with peaks 53 formed in a trapezoidal shape by left and right inclined walls 55, 55 and a top wall 56, and valleys 52 formed in an inverted trapezoidal shape by left and right inclined walls 55, 55 and a bottom wall 57, alternating in the direction of the corrugation (see Figure 7). The greening system 1 is installed over the entire upper area of ​​the folded-plate roof 51, or in the area requiring greening, partitioned by the border 54 shown in Figure 1.

[0034] [Overall configuration] 1 and 2, the greening system 1 is installed in a valley portion 52 of a folded-plate roof 51 and includes a bag 4 that stores culture soil 3 that serves as a seedbed for greening plants 2, and a mat material 5 that is laid on the upper surface of the valley portion 52 of the folded-plate roof 51. In the greening system 1, the bag 4 is installed on top of the mat material 5.

[0035] The greening system 1 comprises a metal wire rope 6, a metal eyelet 7 attached to the peripheral edge 4c of the bag body 4, and a seam gripping hardware 8 attached to the peaks 53 of the folded-plate roof 51. The wire rope 6 is preferably made of, for example, stainless steel and has a diameter of about 3 mm. The metal eyelet 7 is a metal ring-shaped member with an opening in the center that is large enough to allow the wire rope 6 to pass through. The metal eyelet 7 corresponds to the ring-shaped member.

[0036] In the greening system 1, the bag body 4 is fixed to the peak portion 53 of the folded-plate roof 51 by fastening the wire rope 6 passed through the eyelet fitting 7 to the seam gripping hardware 8. The seam gripping hardware 8 is a component for fastening only the bag body 4, or both the bag body 4 and the mat material 5, to the folded-plate roof 51, and has a ring portion 8b attached to the top of the base portion 8a. The wire rope 6 is fastened to the ring portion 8b of the seam gripping hardware 8. The seam gripping hardware 8 corresponds to a fixing device.

[0037] Specifically, the wire rope 6 is preferably passed through the inside of the mat material 5 together with the eyelet fittings 7 attached to the peripheral edge 4c of the bag body 4. In this case, as shown in FIG. 1 , the wire rope 6 may be provided with at least one penetration point 6a that penetrates the inside of the mat material 5. Alternatively, if necessary, a penetration section 6b that penetrates the inside of the mat material 5 for a certain length may be provided. By passing the wire rope 6 through the eyelet fittings 7 attached to the bag body 4 and passing the wire rope 6 through the inside of the mat material 5 either at the penetration point 6a or the penetration section 6b, not only is the bag body 4 fixed to the peaks 53, but the mat material 5 is also fixed to the peaks 53, so that the entire greening system 1 is more firmly fixed to the folded-plate roof 51.

[0038] 1, one end of the wire rope 6 may be fastened to a seam gripping hardware 8 attached to the peak portion 53 of the folded-plate roof 51, and the other end may be fastened to a ridge portion 54 of the folded-plate roof 51. At an installation site where a ridge portion 54 exists, this method can also improve the fixing strength to the folded-plate roof 51. Fastening to the ridge portion 54 may be performed as needed; for example, at an installation site where a ridge portion 54 does not exist near the greening system 1, it is sufficient to fasten both one end and the other end of the wire rope 6 to the seam gripping hardware 8.

[0039] [Mat material 5] In the greening system 1, to ensure good drainage in the valleys 52 of the folded-plate roof 51, mat materials 5 are laid on the upper surfaces of the valleys 52. The size of the mat material 5 is, for example, 20 mm thick, 150 mm wide, and 1000 mm long. The mat material 5 may be matched to the length of the folded-plate roof 51 in the crease direction, or may be formed to a size shorter than the length of the folded-plate roof 51 in the crease direction and laid by splicing the required number of mat materials 5 in the crease direction. The width of the mat material 5 is preferably matched to the width of the valleys 52 of the folded-plate roof 51.

[0040] In the greening system 1 of this embodiment, the mat material 5 is a three-dimensional reticulated porous body 5a made by heating and melting thermoplastic resin, extruding it from a nozzle to form fibers, stacking the curled fibers, and welding the points of contact between the fibers. Specifically, the mat material 5 is made of a three-dimensional reticulated porous body 5a made of polypropylene, and the three-dimensional reticulated porous body 5a is wrapped around the periphery of the three-dimensional reticulated porous body 5a with nonwoven fabric 5b (see FIG. 3).

[0041] A mat member 5 made of such a material has a surface porosity and internal porosity of the porous body of 80% or more, forming sufficient voids inside the mat member 5. This results in good drainage and maintains drainage performance for a long period of time without clogging. The three-dimensional reticulated porous body 5a has a structure in which lightweight, hard, and thick fibers are entangled and welded, so it also has good shape retention. Because the three-dimensional reticulated porous body 5a is not made using an adhesive or the like, there is no risk of problems due to adhesive degradation or the like, and it is safe. As an example of a product that can be suitably used for the three-dimensional reticulated porous body 5a of the mat member 5, Hechimaron (registered trademark: manufactured by Shinko Nylon Co., Ltd.) can be used.

[0042] [Haze grip hardware 8] As shown in Figure 3, the seam gripping hardware 8 is a hardware having a base portion 8a and an annular portion 8b. The base portion 8a of the seam gripping hardware 8 has an upper plate 8c to which an annular portion 8b is attached by fixing bolts 8h, left and right leg pieces 8d, 8d extending downward from both ends of the upper plate 8c, and inward portions 8e, 8e bent inward from the lower ends of the leg pieces 8d, 8d so as to face each other. The base portion 8a has a structure that fastens the left and right leg pieces 8d, 8d and brings the inward portions 8e, 8e close to each other and clamps them in the seam tightening portion 58. Specifically, the leg pieces 8d, 8d are fastened by threading a fastening bolt 8f, which passes through a shaft hole opened in the opposing leg pieces 8d, 8d, into a fastening nut 8g.

[0043] In the greening system 1, the wire rope 6 is fastened to the annular portion 8b of the seam gripping hardware 8, which is clamped in the seam fastening portion 58 of the peak portion 53 as described above. As a result, the bag body 4 and the mat material 5, through which the wire rope 6 is inserted, are firmly fixed to the peak portion 52 of the folded-plate roof 51.

[0044] [Bag body 4] As shown in FIG. 4, the bag body 4 includes a bag 4a that stores culture soil 8 that serves as a seedbed for the greening plants 2. The bag 4a can be made of a breathable, water-permeable material such as a nonwoven or woven fabric. Specifically, a weed-proof sheet, which has excellent weather resistance, is preferably used as the material for the bag 4a of the bag body 4. After the greening system 1 is installed on the folded-plate roof 51, the bag body 4 will continue to be exposed to the outdoor environment for a considerable number of years, and the bag 4a made of a weed-proof sheet is suitable because it has sufficient weather resistance and can prevent the growth of weeds. An opening 4d that extends linearly in the left-right direction is provided on the top surface 4b of the bag 4a when in use.

[0045] The opening 4d is an opening used for planting seedlings of greening plants 2, and the seedlings of the greening plants 2 are planted in the culture soil 8 near the opening 4d. The size of the bag body 4 in a plan view is 1010 mm in length x 260 mm in width, and it has a rectangular shape. The thickness of the bag body 4 in the vertical direction in a front view is approximately 50 mm. The length of the bag body 4 is preferably the same as or slightly longer than the mat material 5. The width of the bag body 4 is preferably larger than the width of the mat material 5 laid below the bag body 4 so as to follow the shape of the valley portion 52 of the folded-plate roof 51.

[0046] The bag body 4 has an opening 4d for planting greening plants 2 on the upper surface 4b side of the bag 4a, but the underside is flat and is placed on the upper surface of a mat material 5 laid in the valley portion 52 of the folded plate roof 51.

[0047] When in use, the bag 4 has a support portion 4f that rises upward from the opening edge 4e of the opening 4d. The support portion 4f has a pair of opposing support surfaces 4g1, 4g2, and can support the seedlings of the greening plants 2 by sandwiching them between the support surfaces 4g1, 4g2. The height of the support portion 4f is 20 mm. As a result, the seedlings of the greening plants 2 are supported by the support surfaces 4g1, 4g2 of the support portion 4f, and will not fall over even immediately after germination.

[0048] The bag body 4 is produced by sewing together required positions of a single nonwoven fabric sheet 21 shown in Figure 5. The nonwoven fabric sheet 21 is folded along valley fold lines 22, 22, and first side portions 23, 23 and second side portions 24, 24 located at both left and right ends of the nonwoven fabric sheet 21 are sewn together. Openings are made in the four corners of the nonwoven fabric sheet 21, and eyelets 7 shown in Figure 1 are attached thereto.

[0049] The bag body 4 is filled with culture soil 8 with the required positions sewn as described above, and then the opening 4d and the support part 4f are left open and the greening plants 2 are planted therein. After the seedlings are planted, the bag body 4 is used with the opening 4d and the support part 4f closed.

[0050] The support portion 4f is formed with a width of 20 mm on each of the vertical ends of the nonwoven fabric sheet 21. When in use, the support portion 4f is bent at a right angle and stands vertically upward. As shown in Fig. 5, hook-and-loop fasteners 4h1 and 4h2 are attached to the support surfaces 4g1 and 4g2 of the support portion 4f, respectively.

[0051] The hook-and-loop fasteners 4h1 and 4h2 are made of resin and are an engaging pair of male and female surfaces that can be attached and detached freely. The male and female surfaces of the engaging member are resistant to shear stress, but are easy to peel off. Specifically, the hook-and-loop fastener 4h1 is the male surface, and the hook-and-loop fastener 4h2 is the female surface. The support portion 4f can maintain a tightly closed state by adhering the hook-and-loop fasteners 4h1 and 4h2. However, it is easy to intentionally peel off the adhered hook-and-loop fasteners 4h1 and 4h2 when performing maintenance, etc.

[0052] The hook-and-loop fasteners 4h1 and 4h2 used in the bag body 4 are high-hardness and high-modulus resin hook-and-loop fasteners. Specifically, the material of the resin hook-and-loop fasteners can be suitably made of a thermoplastic resin such as polyethylene, polypropylene, or polyester (PET) resin. The hook-and-loop fasteners 4h1 and 4h2 are preferably of an engagement type having a high density of hook-shaped protrusions on the male surface and a high density of coil- or loop-shaped protrusions on the female surface, with the hooks hooking onto the coils or loops.

[0053] As shown in Figure 4, the hook-and-loop fasteners 4h1, 4h2 are provided only on the support surfaces 4g1, 4g2 where no seedlings of greening plants 2 are present when in use. As a result, the seedlings of greening plants 2 are supported by the support surfaces 4g1, 4g2 of the support part 4f, but the seedlings themselves are not compressed by the hook-and-loop fasteners 4h1, 4h2. This allows the seedlings of greening plants 2 to grow in an extremely favorable environment.

[0054] Thus, the bag 4 is configured to include a bag 4a that stores culture soil 3 that will serve as a seedbed for greening plants 2, an opening 4d for placing seedlings that is provided on the upper surface 4b of the bag 4a when in use, a support portion 4f that has a pair of support surfaces 4g1, 4g2 that rise upward from the opening edge 4e of the opening 4d when in use and that supports the seedlings of greening plants 2 by sandwiching them between the support surfaces 4g1, 4g2, and hook-and-loop fasteners 4h1, 4h2 attached to the support surfaces 4g1, 4g2, respectively. As shown in Fig. 4, eyelets 7 are attached to the peripheral edge 4c of the bag 4. Specifically, the eyelets 7 are attached to the four corners of the bag 4.

[0055] [Greening plants 2] The greening plant used for plant number 2 is Takeshima kirinsou. Takeshima kirinsou is an evergreen plant whose existence was confirmed in 1919 by Professor Nakai of the University of Tokyo. It remains evergreen all year round and does not lose its leaves, allowing the rooftop to remain lush and green even in winter. Furthermore, Takeshima kirinsou is extremely resistant to heat and cold, and is also highly tolerant of dryness and high humidity, making it an ideal plant for rooftop greening.

[0056] Furthermore, for example, white-flowered sedge may be used as the greening plant 2. White-flowered sedge is a succulent plant classified as a Crassulaceae family. White-flowered sedge is a plant that can grow naturally even in barren land, and is resistant to dryness, high and low temperatures, salt damage, and alkalinity, making it suitable for rooftop greening.

[0057] If necessary, two types of plants may be used as the greening plants 2. In this case, it is preferable to arrange the two types of plants alternately so that the characteristics of each plant are uniformly and effectively brought out.

[0058] The culture soil 8 to be used may be one that is suitable for growing the greening plants 2. For example, vermiculite, perlite, peat moss, decomposed granite, organic compost, charcoal, etc. can be used as the culture soil 8 to be filled into the bag 4, and the necessary materials can be selected and mixed in the optimum ratio.

[0059] [Folded Plate Roof 51] 6, the folded plate members 51a constituting the folded plate roof 51 have a valley portion 52 formed in the center in an inverted trapezoid shape by left and right inclined walls 55, 55 and a bottom wall 57, and also have a peak portion 53 with a top wall 56 and a seam fastening portion 58 bent into a roughly U-shape at both left and right ends. The material of the folded plate members 51a is, for example, Galvalume steel sheet (registered trademark, Nippon Steel Corporation).

[0060] As shown in Figure 7, the folded-plate roof 51 is formed by fixing a continuous trapezoidal tight frame 63 to a support beam 62 placed on a sloping purlin 61, and then connecting multiple folded-plate members 51a via this tight frame 63. The multiple folded-plate members 51a are connected together so that their seam fastening portions 58 overlap, and then the seam fastening portions 58 are fastened over their entire length using a fastening tool, and the members are fixed to the support beam 62 via the tight frame 63.

[0061] [Effects of the embodiment]

[0062] The greening system 1 described above comprises a bag body 4 for storing culture soil 3 which serves as a seedbed for greening plants 2, and a mat material 5 which is laid on the upper surface of the valley portion 52 of the corrugated roof 51, and the bag body 4 is placed on top of the mat material 5.

[0063] According to the greening system 1 configured as described above, the bag 4 storing the culture soil 3 that serves as a seedbed for the greening plants 2 is placed on the mat material 5 having many voids inside, so that rainwater can be smoothly drained below the bag 4, and there is no risk of the culture soil 3 being washed away even if the amount of rainfall increases. In addition, because it is possible to avoid a state in which the moist culture soil 3 is in constant contact with the folded-plate roof 51, the folded-plate roof 51 is not easily damaged.

[0064] Furthermore, according to the greening system 1 configured as described above, the culture soil 3 is stored in the bag 4, so the culture soil 3 is not exposed to direct sunlight, frost, wind and rain, etc. Furthermore, weed seeds will not fly in and get mixed into the culture soil, and there is no risk of the culture soil being blown away by the wind.

[0065] The greening system 1 includes a grommet fitting 7 attached to the bag body 4 and a seam gripping fitting 8 attached to the upper surface of the peak portion 53 of the folded-plate roof 51, and includes a configuration in which the bag body 4 is fixed to the folded-plate roof 51 by fastening a wire rope 6 inserted into the grommet fitting 7 to the seam gripping fitting 8.

[0066] According to the greening system 1 configured as described above, the bag 4 containing the culture soil 3 that will serve as a seedbed for the greening plants 2 is firmly fixed to the folded-plate roof 51 via the wire rope 6. This reduces the risk that the bag 4 containing the culture soil 3 will be displaced by the wind or that the culture soil 3 inside the bag 4 will be blown away by the wind. In addition, because the culture soil 3 does not blow away, problems such as gutters being clogged with scattered culture soil do not occur.

[0067] The greening system 1 includes a configuration in which a wire rope 6 penetrates through the inside of a mat material 5 together with a metal eyelet 7 attached to a bag body 4.

[0068] According to the greening system 1 configured as above, not only the bag body 4 but also the mat material 5 is firmly fixed to the folded-plate roof 51.

[0069] The greening system 1 includes a configuration in which the seam gripping hardware 8 is attached to a portion of the upper surface of the peak portion 53 of the folded-plate roof 51 below which the tight frame 63 is present.

[0070] According to the greening system 1 configured as above, the tight frame 63 is present below the seam gripping hardware 8, so the mounting strength of the seam gripping hardware 8 is improved.

[0071] The greening system 1 includes a configuration in which the mat material 5 is made of a three-dimensional reticulated porous body 5a that is formed by heating and melting a thermoplastic resin, extruding it from a nozzle to form fibers, stacking the fibers while they are curled, and welding the points of contact between the fibers.The greening system 1 also includes a configuration in which the mat material 5 is a three-dimensional reticulated porous body 5a made of polypropylene.

[0072] According to the greening system 1 configured as above, the mat material 5 has extremely excellent drainage properties, and the effect of smoothly draining rainwater at the bottom of the bag body 4 is further enhanced.

[0073] The greening system 1 includes a configuration in which the bag 4 has a support portion 4f that supports the seedling of the greening plant 2 by sandwiching it between a pair of support surfaces 4g1, 4g2 that rise upward from the opening edge 4e of the opening 4d.

[0074] According to the greening system 1 configured as described above, the seedlings of the greening plants 2 can be supported from both sides by the support surfaces 4g1 and 4g2 of the support portion 4f. This prevents the seedlings of the greening plants 2 planted in the opening 4d from falling over. Furthermore, by firmly supporting the seedlings, the effect of encouraging the growth of the seedlings of the greening plants 2 can be obtained.

[0075] According to the greening system 1 of this embodiment, plant management such as sunshade, rain protection, wind protection, and weeding becomes unnecessary, or it becomes possible to reduce the man-hours required for plant management.

[0076] Furthermore, the greening system 1 of this embodiment grows plants on the top of the folded-plate roof 51, and the plants and soil block sunlight, thereby suppressing the rise in the roof surface temperature, preventing heat from entering the building in the summer, and reducing the air conditioning load. Secondary effects of the greening system 1 of this embodiment include suppressing the rise in temperature around the building through transpiration, which takes heat from the surrounding area as water evaporates from plant leaves; purifying the air by plants absorbing carbon dioxide through photosynthesis and supplying oxygen; improving the appearance of the building and providing people with a sense of peace and relaxation through the green color of the plants.

[0077] The present invention is not limited to the above-described embodiment, and it goes without saying that the embodiment may be modified as appropriate within the scope of the technical ideas set forth in the claims.

[0078] In other words, the above-described embodiment is a preferred example of the present invention, and other embodiments can be adopted in various ways. Unless otherwise specified in the present specification, the present invention is not limited to the shape, size, and configuration of the parts shown in the accompanying drawings.

[0079] For example, the eyelets 7 provided on the bag body 4 are not limited to being provided at the four corners of the bag body 4, but may also be provided near the center of the four sides of the bag body 4. If necessary, adjacent bags 4 may be fastened together using a connecting device such as a carabiner.

[0080] Furthermore, the material of the mat material 5 is not limited to the three-dimensional reticulated porous body 5a made of polypropylene, but wires made of other synthetic fibers or nonwoven fabric fibers may also be used. [Industrial Applicability]

[0081] This invention is not limited to folded-plate roofs made of Galvalume steel sheets (registered trademark), but can also be used for folded-plate roofs made of any material, such as galvanized steel sheets, fluororesin-coated steel sheets, aluminum sheets, and stainless steel sheets. [Explanation of symbols]

[0082] 1 Greening System 2 green plants 3 Cultivating soil 4 Bag body 4a bag 4b Top side 4c Periphery 4d opening 4e Opening edge 4f Support part 4g1 Support surface 4g2 Support surface 4h1 hook and loop fastener 4h2 hook and loop fastener 5 Mat material 5a Three-dimensional reticular porous body 5b Non-woven fabric 6 Wire Rope 6a Penetration point 6b Through section 7 Eyelet (ring-shaped part) 8 Seam grip hardware (fixing device) 8a Base 8b Annular part 8c Upper board 8d leg piece 8e Introvert 8f Fastening bolt 8g tightening nut 8h fixing bolt 21 Nonwoven fabric sheet 22 Valley fold line 23 First side 24 Second side 51 Folded plate roof 51a Folded plate member 52 Valley 53 Yamabe 54 Parting section 55 Slanted wall 56 Top Wall 57 Bottom wall 58 Seam fastening part 61 Purlin 62 Beam support 63 Tight Frame

Claims

1. A greening system to be installed on a folded-plate roof in which peaks formed in a trapezoidal shape by inclined walls and top walls and valleys formed in an inverted trapezoidal shape by inclined walls and bottom walls are alternately formed, a bag for storing culture soil that will serve as a seedbed for greening plants; a mat material laid on an upper surface of the valley portion, The bag body is installed on the mat material, and the greening system for a folded-plate roof is provided.

2. an annular member attached to the bag body; a fixing device attached to the top surface of the mountain portion, 2. The greening system for a folded-plate roof according to claim 1, wherein the bag body is fixed to the folded-plate roof by fastening a wire rope passed through the annular member to the fastener.

3. The greening system for a folded-plate roof according to claim 2, wherein the wire rope is fastened to the fixing device and also to an edge portion of the folded-plate roof.

4. The greening system for a folded-plate roof according to claim 2 or 3, wherein the wire rope penetrates through the inside of the mat material together with the annular member attached to the bag body.

5. The greening system for a folded plate roof according to claim 2 or 3, wherein the fixing device is attached to a portion of the upper surface of the mountain portion below which a tight frame is present.

6. The mat material is The greening system for a folded-plate roof according to claim 1 or 2, which is made of a three-dimensional reticulated porous body formed by heating and melting a thermoplastic resin, extruding it from a nozzle, forming fibers, stacking the fibers while they are curled, and welding the mutual contact points of the fibers.

7. The greening system for a folded-plate roof according to claim 6, wherein the mat material is a three-dimensional reticulated porous body made of polypropylene.

8. The bag body is A bag for storing potting soil that will serve as a seedbed for greening plants, An opening for placing seedlings on the upper surface of the bag when in use; a support part having a pair of support surfaces that rise upward from the edge of the opening when in use, and that supports the seedling of the greening plant by sandwiching it between the support surfaces; hook-and-loop fasteners attached to the support surfaces; The device is provided with: The greening system for a folded-plate roof according to claim 2 or 3, wherein the annular member is attached to a peripheral edge of the bag body.

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