JP2006002525A - Greened roof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greened roof, which does not need to manufacture a special member for laying a cultivating section, is easy to construct, is excellent in ventilation as well as drainage and can form an environment suitable for a growth of plants while the cultivating section can be laid successively so as not to produce any unplanted section for a good appearance. <P>SOLUTION: The greened roof is composed of a folded-plate roof 1, mesh material 2 covering the upper part of the folded-plate roof 1, a shock-absorbing mat 3 to be laid on the mesh material 2 and a greening plate 4 covered with a natural turf to be fixed on the shock-absorbing mat 3. The mesh material 2 and the shock-absorbing mat 3 are secured on a top part 1c of the crest section 1a of the folded-plate roof 1 with a bolt 5 inserted from above while the greening plate 4 is secured to the mesh member 2 and the shock-absorbing mat 3 with a hook 7 pierced from above. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to greening of roofs, in particular, folded roofs of factories.

  Since conditions suitable for cultivation of plants, such as sunlight and ventilation, are available on the roof, conventionally, the roof is greened (see, for example, Patent Document 1).

The technique described in Patent Document 1 includes a folded plate roof in which chevron portions are continuously formed at predetermined intervals, and mounting leg portions are formed on both sides in the width direction of the groove plate support portion. A support member to be mounted at a location; a groove plate formed with rising side portions on both sides in the width direction of the bottom surface portion; and a fixing member for fixing the groove plate on the groove plate support portion. A groove plate is arranged between the plurality of support members fixed to the cross section so as to be orthogonal to the longitudinal direction of the chevron, and is fixed by the fixing member, and a cultivation part is laid on each groove plate. It will be.
JP 2003-321906 A

  In the prior art, the cultivation part is laid on the groove plate, but the groove plate is not only formed with rising side parts on both sides, but also has a resin coating state with a covering sheet attached thereto. For this reason, it is not only necessary to produce a groove plate with a special shape, but it is difficult to ensure sufficient air permeability and drainage with such a groove plate, which is a good environment for plant cultivation. There is something difficult.

  Moreover, in order to attach the groove plate to the roof, a special support tool and a fixing member are separately required, which increases the number of parts and increases the cost. First, the support is fixed to the groove, and the groove plate is placed between the support members. The workability is not good because it takes time and effort.

  Furthermore, since a fixing member protrudes upward in the connection part between groove plates, a cultivation part cannot be laid in this location, and the part which is not planted will be formed on a roof. Moreover, the shape of a cultivation part will also be controlled by the shape of a groove plate.

  The object of the present invention is to eliminate the inconveniences of the conventional examples, and it is not necessary to prepare a special member for laying the cultivation part, and it is easy to construct and excellent in breathability and drainage and suitable for growing plants. The object of the present invention is to provide a green roof that can form an environment, can be continuously cultivated, and has no appearance on the roof.

  In order to achieve the above object, the present invention provides a folded plate roofing material, a mesh material covering an upper portion of the folded plate roofing material, and a buffer mat laid on the mesh material. The gist of the present invention is that it is composed of a greening plate fixed on the buffer mat and covered with natural turf and having water retention and legs.

  According to the first aspect of the present invention, a green roof can be formed with a structure in which a mesh material, a buffer mat, and a greening plate are sequentially laminated on a folded plate roof material without using any special fixture. In addition to providing the water retention capacity to the greening plate, the mesh material is used for the material laid under the plate, so that air permeability and drainage can be secured, and an environment suitable for plant growth can be formed. This can be cooled against the roofing material by the greening plate with the property. Further, the mesh material, the buffer mat, and the greening plate are not particularly limited in shape and size.

  The gist of the invention described in claim 2 is that the mesh material and the buffer mat are integrally fixed to the top of the mountain-shaped portion of the folded roof material by bolts inserted from above.

  According to the second aspect of the present invention, the mesh material and the cushioning mat can be fixed simultaneously to the top of the mountain-shaped portion of the folded roof material simply by inserting bolts from above, and the mounting is simple. A commercially available bolt can be used as the member, and a dedicated fixing member is not required, so the cost can be reduced.

  Further, since the mesh material and the cushion mat are laid on the entire surface of the folded roof material, the shape and size are not already provided, the mounting position is not limited, and the workability is good.

  The gist of the invention described in claim 3 is that the greening plate is fixed to the mesh material and the buffer mat with a hook that is pierced from above.

  According to the third aspect of the present invention, since the greening plate can be fixed to the mesh material and the buffer mat simply by piercing the hook from above, the greening plate can be easily mounted. Since it is laid, the shape and size are not already installed, the mounting position is not limited, the workability is not only good, and the entire roof can be greened without gaps, making it attractive.

  The gist of the invention described in claim 4 is to secure a valley-shaped gap between the mesh material and the bottom of the folded roof material.

  According to the fourth aspect of the present invention, since the gap is formed by the valley portion of the folded roof material, the rainwater permeates the greening plate, the buffer mat, and the mesh material and flows down into the gap. Therefore, not only the drainage function is ensured with air permeability, but also a gap is formed below the greening plate with water retention, so the air in this gap is also cooled to efficiently cool the folded plate roofing material And a heat insulating effect can be obtained.

  As described above, the green roof of the present invention does not require any special member for laying the cultivation part, it is a commercially available material, and it is only necessary to stack the materials and fix them from above with bolts or the like. Therefore, construction is also easy, it is excellent in breathability and drainage, it can form an environment suitable for plant growth, it can be laid continuously in the cultivation part and it does not appear on the roof and it looks good .

  In addition, the valley of the folded plate roof material becomes an air permeable gap, and the air in the gap is cooled by the cold air from the rainwater retained by the greening plate having the upper water retention capacity to cool the folded plate roof material. In the summer, the indoor temperature can be lowered efficiently.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal front view showing an embodiment of a green roof according to the present invention. The green roof according to the present invention includes a folded plate roof material 1, a mesh material 2 covering the upper portion of the folded plate roof material 1, and the mesh material. 2, and a greening plate 4 laid with natural turf fixed on the buffer mat 3.

  As shown in FIG. 3, the folded plate roofing material 1 is formed by a continuous portion of a mountain-shaped portion 1a having a horizontal and flat top portion 1c and a bottom portion 1b between the mountain-shaped portions 1a. In order to greenen the folded-plate roof material 1, for example, a galvanized mesh steel plate is laid as the mesh material 2 on the top portion 1c of the mountain-shaped portion 1a of the folded-plate roof material 1 as shown in FIG. The diameter of the wire material of the mesh material 2 is about 4 mm, for example, and the plane size is 50 × 50 cm, for example.

  Next, the buffer mat 3 is laid on the mesh material 2 as shown in FIG. The buffer mat 3 has a thickness of 10 mm, for example. Then, the bolt 5 is inserted from above the buffer mat 3 so as to penetrate the buffer mat 3 and the mesh material 2, and fixed to the top portion 1 c of the folded roof material 1. In the figure, 6 indicates a washer.

  Further, as shown in FIG. 6, a greening plate 4 is laid on this. The greening plate 4 is, for example, a square plane, and a plurality of the greening plates 4 are continuously laid in the vertical and horizontal directions without gaps, and the stainless steel hooks 7 are moved upward at the points where the corners of the four greening plates 4 meet. Then, the tip is made to reach the mesh material 2 below, and the greening plate 4 is fixed to the mesh material 2 and the buffer mat 3 with this hook 7. In the figure, 8 indicates a galvanized round washer.

  Commercially available bolts 5, hooks 7, washers 6 and round washers 8 can be used.

  Further, the greening plate 4 can plant natural turf 9 on the plate plate surface as shown in FIG. 7, for example, and can root the natural turf 9 from the plate plate surface to the inside. The planted natural turf 9 does not easily peel off from the plate surface due to wind or rain.

  Further, the greening plate 4 is composed of natural zeolite as a main component of nutrients for the natural turf 9 and also has a water retention function. Therefore, it is not necessary to spray fertilizer for growing the natural turf 9, and when the water is sprayed, the water is appropriately absorbed and retained to be used for hydration of the natural turf 9. It has features.

  The greening plate 4 having such characteristics is composed of natural zeolite as a main component, gypsum, cement and water added thereto, and pressed with a press into a plate having legs protruding slightly on the lower surface side. Solidified and formed for about 3 days.

  Natural zeolite, which is the main component of the greening plate 4, is known as a generic term for crystalline porous aluminosilicates. Zeolite is roughly classified into natural zeolite and synthetic zeolite, and these natural zeolites are naturally produced but cannot be synthesized. Since natural zeolite is porous, it has the feature of retaining moisture in the pores. Moreover, since it is natural, it functions also as a nutrient of natural turf 9.

  On the other hand, mordenite is an orthorhombic high-silica natural zeolite and is contained in natural zeolite. The properties of mordenite are prismatic crystals, vertical streaks, fine, ordinary needles to fine fibers, often cotton-like aggregates, and dense, porcelain. Mordenite is produced in veins and cavities in igneous rocks as a hydrated product of glass and a spontaneous deposit in the sediment.

The composition of the mordenite used is as follows.
Total amount of silicic acid (SiO ₂ ) (silica): 66.57%
Aluminum oxide (Al ₂ O ₃ ): 12.62%
Iron oxide (Fe ₂ O ₃ ): 1.03%
Total amount of bitter earth (MgO): 0.54%
Total lime (CaO): 2.55%
Total amount of soda (Na ₂ O): 1.52%
Total amount of potassium (K ₂ O): 2.17%
Total amount of phosphoric acid (P ₂ O ₅ ): 0.02%

The quality and physical properties of the mordenite used are as follows.
pH (pH) 6.0-6.5
Base substitution capacity (CEC) 120-180meq / 100g
Water absorption 25%
Bulk specific gravity 1.0
Specific gravity 2.0

  The component composition of the greening plate 4 is that mordenite is used as the main component natural zeolite, blast furnace cement is used as the cement, and the weight is 4.8 kg on the base of 300 × 300 × 40 (mm) described later. However, mordenite with a diameter of 3 to 5 mm is 3.8 kg, gypsum is 200 g, blast furnace cement is 1 kg, and water is 1.2 kg. The proportion of water varies slightly depending on pressure and the time of manufacture, with a little more in the hot season and a little in the cold season.

Further, the greening plate 4 having the above-described component structure is manufactured as follows.
Gypsum is added to mordenite having a diameter of 3 to 5 mm, mixed in a stirrer, further mixed with blast furnace cement, and finally mixed with water. Next, the mixture thus mixed is poured into a mold and pressed, for example, at a pressure of 7 tons. Keep it in the mold for 3 days. Then, it takes out from a type | mold and the plate board 1 for greening is obtained.

  As shown in FIGS. 8 to 10, the greening plate 4 is formed into a thick square plate. The size of the greening plate 1 is, for example, 300 × 300 × 30 (mm), 300 × 300 × 40 (mm), 450 × 450 × 30 (mm), 450 × 450 × 40 (mm).

  For example, a circular leg 4a that protrudes slightly is formed on the lower surface side of the greening plate 4 so as to protrude. In this embodiment, the leg portions 4a are formed at a total of five locations, that is, four locations on the central and peripheral corner sides. The diameter of each circular leg 4a is, for example, 85 mm, and the protruding amount of each leg 4a is, for example, 10 mm.

  Then, natural grass 9 is spread over the greening plate 4 and planted. In this state, the natural turf 9 is planted without any gaps, and planted over the entire upper surface of the folded plate roofing material 1.

  FIG. 2 shows the processing structure of the eaves part, and a Z-shaped angle member 10 made of a galvanized steel plate is attached to the end surface of the greening plate 4, and the lower part of the angle member 10 penetrates the buffer mat 3 and the mesh member 2. It is fixed to the folded roof material 1 with bolts.

  The green roof formed as described above has a space secured in the valley 1d of the folded roof material 1, and air permeability and drainage are secured with respect to the upper greening plate 4. An environment suitable for growth is provided.

  Moreover, since the trough part 1d of the folded-plate roof material 1 becomes a space | gap, the cold air by the rain water retained by the greening plate 4 cools the air in this space | gap, As a result, the folded-plate roof material 1 is cooled. . In this case, since the air permeability is ensured by the upper mesh material 2 in the gap, the cooling action is good. Therefore, for example, when the folded-plate roof material 1 is used for a factory roof or the like, the roof can be cooled and heated particularly in summer, and the indoor temperature can be lowered.

It is a vertical front view which shows embodiment of the greening roof of this invention. It is a vertical front view of the eaves part which shows embodiment of the greening roof of this invention. It is a perspective view of the folded-plate roof material which shows embodiment of the greening roof of this invention. It is a perspective view of the construction state which laid the mesh material which shows the embodiment of the greening roof of the present invention. It is a perspective view of the construction state which laid the buffer mat and the greening plate which show the embodiment of the greening roof of the present invention. It is a perspective view which shows the fixed state of the plate for greening which shows embodiment of the greening roof of this invention. It is a front view in the state where natural grass was planted on the plate for greening. It is a front view of the plate for greening. It is a top view of the plate for greening. It is a bottom view of the greening plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folded plate roof material 1a Yamagata part 1b Bottom part 1c Top part 1d Valley part 2 Mesh material 3 Buffer mat 4 Greening plate 4a Leg part 5 Bolt 6 Washer 7 Hook 8 Round washer 9 Natural turf 10 Angle material

Claims (4)

  Folded plate roofing material, mesh material covering the upper part of the folded plate roofing material, a cushioning mat laid on the mesh material, and a natural turf fixed on the cushioning mat and having water retention A green roof characterized in that it is composed of a greening plate with a leg.   2. The green roof according to claim 1, wherein the mesh material and the cushion mat are integrally fixed to the top of the mountain-shaped portion of the folded plate roof material by bolts inserted from above.   The greening roof according to claim 1 or 2, wherein the greening plate is fixed to the mesh material and the buffer mat with a hook that is inserted from above.   The green roof according to any one of claims 1 to 3, wherein a valley-like gap is secured between the mesh material and the bottom of the folded-plate roof material.

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