JP2010029152A - Greening construction method for folded-plate roof, and greening facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening construction method for a folded-plate, capable of easily and quickly constructing without requiring mounting clamps, making a construction cost inexpensive, and excellent in drainage, water retainability and durability, and to provide greening facilities. <P>SOLUTION: This greening construction method for a folded-plate includes: sticking a reversed-trapezoid-shaped suction-preventing material 11 to an edge 8 of the eaves of each of valley parts 2 of a folded-plate roof 1 on a crossbeam material 7 of a building 6; regarding as a cultivation pot, a holding space S divided by the inside of the suction-preventing material 11 and each of the valley parts 2 of the folded-plate roof 1; evenly spreading each of materials of pumice 12, charcoal 14, drainage lightweight earth 16 in order on the holding space S; forming a pumice layer 13, a charcoal layer 15 and a drainage lightweight earth layer 17 in order; and planting plants 18 on the drainage lightweight earth layer 17 of a front layer. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a greening method capable of easily constructing a greening facility on a folded plate roof, and a greening facility constructed by the method.

  In recent years, greening facilities installed on the roofs of buildings, condominiums, etc., and roofs of houses have become widespread for the purpose of urban heat island phenomenon, countermeasures against global warming, improvement of thermal insulation of buildings, improvement of landscapes, and the like.

  As a conventional rooftop greening facility, a rooftop garden type using lightweight soil, a greening substrate type using a thin greening substrate, and the like are known. In both types, as a countermeasure against plant roots, a root-proof sheet is laid on a waterproofing layer on the roof, and light soil is spread on it, or a greening substrate is laid. The latter greening substrate type has been attracting attention in recent years because of its light weight, excellent drainage and water retention, excellent workability, and the like compared to the roof garden type.

  As the latter greening substrate type, one using a vegetation mat on which sedum or the like is vegetated (Patent Document 1), a greening light shirasu base combining a light shirasu base with turfgrass or moss (Patent Document 2), etc. It has been known. Further, in a folded plate roof structure, a plant is planted on a greening tray, and the greening tray is fixed to the folded plate roof with a fixed hardware (Patent Document 3) is known.

Japanese Patent Laid-Open No. 2003-225016 Japanese Patent Laid-Open No. 2003-245012 JP 2007-332766 A

  However, since the greening board type uses a flat vegetation mat and a greening light weight shirasu base, it can be mounted directly on a flat rooftop or roof, but it is a folded roof with a continuous valley and mountain. On the other hand, it cannot be installed directly. For folded plate roofs, as shown in Patent Document 3, planted in a shallow tray, the trays are arranged vertically and horizontally between the mountain portions of the folded plate roof, and each tray is attached to the folded plate roof with a mounting bracket. Although such a construction method is known, in this construction method, it is necessary to prepare a large number of trays and mounting brackets, and there is a problem that the construction cost is high and the maintenance cost is also high.

  The present invention has been made in view of the above problems, and aims to provide a greening method and a planting facility for a folded-plate roof that does not require a mounting bracket, can be easily and quickly constructed, and has low construction costs. To do. It is another object of the present invention to provide a method for greening a folded-plate roof and a greening facility that are excellent in drainage and water retention and excellent in durability.

  In order to solve the above-mentioned problem, the greening method of the folded-plate roof according to claim 1 according to the present invention is characterized in that an inverted trapezoidal suction prevention material is fixed to the eaves side of each valley portion of the folded-plate roof of the building. The accommodation space partitioned by the inner side of the prevention material and each valley portion of the folded plate roof is regarded as a cultivation pot, and each material of pumice, charcoal, drainable lightweight soil is sequentially spread in the accommodation space, A layer, a coal layer, and a drainable lightweight soil layer are formed in order, and a plant is planted on the drainable lightweight soil layer of the surface layer.

  According to the greening method of the folded-plate roof according to the first aspect of the present invention, by using the valley portion of the folded-plate roof as a cultivation pot, a greening facility can be constructed easily and quickly on the folded-plate roof. Because the valley part of the folded-plate roof is used as a cultivation pot and plants are planted on the drainage lightweight soil layer on the surface layer, there is no need for dedicated mounting brackets like the construction of planting mats and greening boards, and construction costs are reduced. Can be cheap.

  Because the trapezoidal suction prevention material is fixed to the eaves side of each valley of the folded-plate roof, the rainwater that falls on the folded-plate roof is not retained by the drainable lightweight soil layer, coal layer, and pumice layer. The extra rainwater is immediately discharged toward the eaves. On the other hand, the pumice, charcoal, and drainage soil materials spread on the valleys of the folded roof are prevented from flowing out. The lowermost pumice layer has many voids and is excellent in water retention, and improves the water retention of rainwater that falls on the folded roof. Therefore, it is possible to prevent rainwater that has fallen on the folded roof from flowing into the gutter and the river through the eaves. Since rainwater is retained for a long period of time, management and maintenance of planted plants can be facilitated.

  In addition, the lowest pumice layer effectively prevents the tip of the root of the plant planted in the drainable lightweight soil layer from extending downward and penetrating the folded plate roof to enter the lower side. Plants planted in a drainable lightweight soil layer have roots that grow downward, but the tip of the root hits the surface of the bottom pumice layer or bends sideways, or enters the void on the surface of the pumice, and from there It bends along the internal gap and grows sideways.

  Since the coal layer is formed in the intermediate layer, the rainwater that has fallen on the surface drainable lightweight soil layer is cleaned by the action of the coal in the intermediate layer, and the situation where the rainwater becomes muddy water and flows out of the valley is prevented. Examples of charcoal include charcoal and bamboo charcoal. In addition, the coal layer in the middle layer has the effect of neutralizing the acidity of the charcoal, so it suppresses and prevents the occurrence of rust and corrosion of the metal folded plate roof due to acid rain damage. Improve the durability of the roof. Furthermore, it can suppress that the root of a plant progresses to the bottom face of the valley part of the folded-plate roof 1 by two layers of a coal layer and a pumice layer.

  The surface drainable lightweight soil layer retains rainwater that has fallen on the folded roof, and quickly drains other rainwater through the coal layer, pumice layer, and suction prevention material. In addition, it is lighter than ordinary soil and can be applied to existing building roofs with low strength. Moreover, since the pumice layer and the coal layer are also relatively light, the greening facility can be lightened as a whole. Examples of drainable lightweight soil include inorganic, organic, and organic-inorganic mixed artificial lightweight soil. Examples of organic artificial lightweight soil include trade name roof soil.

  As a plant planted in the drainable lightweight soil layer, a sedum system that is relatively resistant to drying is used. For example, Mexican mannen grass, giraffe grass, Benkei grass and the like are used.

  The greening method of the folded-plate roof according to claim 2 according to the present invention is such that the average particle size of the pumice forming the pumice layer is 20 mm to 50 mm, and the average square dimension or outer diameter of the coal forming the coal bed is 20 mm to It is characterized by being 50 mm. The valley portion of the folded plate roof usually has a height of about 150 mm. Pumice layers with an average particle size of 20 mm to 50 mm are mixed to form a pumice layer, and by mixing charcoal layers with an average square dimension or outer diameter of 20 mm to 50 mm to form a coal layer, the water retention of rainwater mainly by the pumice layer The effect of preventing the muddy water from flowing out due to the coal bed can be exhibited in a well-balanced manner.

  The greening method for folded plate roof according to claim 3 according to the present invention is characterized in that the drainable lightweight soil forming the drainable lightweight soil layer has a specific gravity of 0.3 to 0.8 kg / l and a porosity of 30 to 50%. It is characterized by comprising a aggregate structure. Both drainage and water retention effects of rainwater falling on the folded plate roof can be exhibited.

Greening method foldable plate roof according to claim 4, wherein according to the present invention, the suction preventing material, a natural fiber as a primary material, characterized in that it is a basis weight ^{300g / m 2 ~600g / m 2} . It is easy to mold into an inverted trapezoidal shape, is lightweight, and easily adheres to the valley of the folded plate roof in a sealed state.

  According to the fifth aspect of the present invention, there is provided a greening facility for folded plate roofs, wherein an inverted trapezoidal sucking prevention material is fixed to the eaves side of each valley of the folded plate roof of the building, and the inside of the sucking prevention material and the folded plate The storage space partitioned by each valley of the roof is regarded as a cultivation pot, and each material of pumice, charcoal, drainable lightweight soil is laid in order in the storage space, pumice layer, coal layer, drainable lightweight soil layer Are formed in order, and the plant is planted in the surface drainable lightweight soil layer.

As described above, according to the greening method of the folded-plate roof according to the present invention, by using the valley portion of the folded-plate roof as a cultivation pot, it is possible to construct a greening facility on the folded-plate roof easily and quickly. Unlike conventional planting mats and greening board construction, no special mounting brackets are required, and construction costs and maintenance costs can be reduced. Because it is lightweight, it can be easily installed on the roof of existing buildings. Moreover, it is excellent in water retention, keeps rainwater for a long time, prevents rainwater from flowing into a ditch or a river at a stretch, and facilitates management and maintenance of planted plants. Further, the outflow of muddy water due to rainfall can be prevented by purifying the muddy water by the coal layer of the intermediate layer. In addition, the intermediate coal layer has the effect of suppressing and preventing rust and corrosion generated on the metal folded plate roof due to acid rain damage due to the neutralizing action of the charcoal, thereby improving the durability of the folded plate roof. There is an effect of improving. In addition, according to the present invention, the heat insulation effect of the folded plate roof and the transpiration effect of moisture are obtained, the temperature rise in the building is suppressed, and the effect of absorbing CO ₂ is also obtained.

  Moreover, according to the greening equipment of the present invention, the various effects described above can be achieved.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a greening facility for a folded-plate roof constructed by the greening method of the present invention. In FIG. 1, reference numeral 1 denotes a folded-plate roof, and reference numeral 10 denotes a greening facility.

  First, the folded plate roof 1 will be described. As shown in FIG. 1, the folded plate roof 1 is in a sealed state in which the metal adjacent folded plate components 3 and 3 having the valley portions 2 are in the mountain portion 4. Joined by the bolt 5, the valley portion 2 and the mountain portion 4 are continuously formed. As shown in FIG. 2, the folded plate roof 1 is provided with a downward slope for drainage toward the eaves 8 in a state where the folded roof 1 is laid on the beam 7 of the building 6. The height of the valley 2 is usually about 150 mm.

Next, the greening facility 10 for the folded-plate roof 1 (hereinafter referred to as “greening facility”) will be described. The material 11 is fixed in a sealed state with an adhesive. The anti-suction material 11 removes extra rainwater other than the water retained by the drainable lightweight soil layer 17, the charcoal layer 15, and the pumice layer 13 shown in FIG. While discharging quickly, the function of preventing the outflow of each material of pumice 12, charcoal 14 and drainable lightweight soil 16 spread on the valley 2 of the folded roof 1 is achieved. Such suction preventing member 11, natural fibers such as coconut fiber as the main material, the weight per unit area is selected from between ^{300g / m 2 ~600g / m 2} .

  In each valley portion 2 of the folded plate roof 1, the accommodation space S partitioned by the inside of the suction preventing material 11 and each valley portion 2 of the folded plate roof 1 is regarded as a cultivation pot, and the pumice 12 is placed in the accommodation space S. Each material of the charcoal 14 and the drainable lightweight soil 16 is spread in order, and the pumice layer 13 is formed in the lowermost layer, the charcoal layer 15 is formed in the intermediate layer, and the drainable lightweight soil layer 17 is formed in the surface layer.

  The lowest pumice layer 13 is formed by mixing pumice 12 having an average particle diameter of 20 mm to 50 mm to a height of about 20 mm to 50 mm. The pumice 12 has many voids and is excellent in water retention. The pumice layer 13 as a whole improves the water retention of rainwater that has fallen on the folded-plate roof 1, and rainwater that has fallen on the folded-plate roof 1 due to high water retention. Is prevented from flowing into a ditch outside the building or a river through the eaves 8 at once. Since rainwater is retained in the pumice layer 13 for a long period of time, management maintenance of the plant planted in the drainable lightweight soil layer 17 is facilitated. Furthermore, the pumice layer 13 prevents the tip of the root 19 of the plant 18 planted in the drainable lightweight soil layer 17 from extending downward and penetrating the folded plate roof 1 to enter the lower side.

  The intermediate charcoal layer 15 is formed to have a height of about 20 mm to 50 mm by mixing charcoal 14 having an average square dimension or outer diameter of 20 mm to 50 mm. The total height of the lowermost pumice layer 13 and the intermediate charcoal layer 15 is adjusted to about 70 mm. The charcoal 14 has an action of purifying rainwater, purifies muddy water generated from the drainable lightweight soil layer 17 by rain with the charcoal layer 15, and prevents outflow of muddy water throughout the charcoal layer 15. Moreover, since the charcoal layer 15 retains rainwater in the same manner as the pumice layer 13, the charcoal layer 15 and the pumice layer 13 can exert a well-balanced function of retaining rainwater and preventing muddy water from flowing out.

  The surface drainable lightweight soil layer 17 is formed by laying drainable lightweight soil 16 having a specific gravity of 0.3 to 0.8 kg / l and a porosity of 30 to 50% on a height of about 80 mm. Combines both water and water retention. Examples of the drainable lightweight soil 16 include inorganic, organic, and organic-inorganic mixed lightweight soil. As the organic lightweight soil, for example, a trade name roof soil is used.

  Plants 18 are planted along the valleys 2 in the surface drainable lightweight soil layer 17. As the plant 18, a sedum system that is relatively resistant to drying is used. For example, Mexican mannen grass, giraffe grass, Benkei grass and the like are used.

  Next, the construction procedure of the greening facility 10 will be described. First, the sucking prevention material 11 formed in a reverse trapezoidal shape in advance on the eaves 8 side of each valley portion 2 of the folded plate roof 1 is fixed in a sealed state with an adhesive. Next, as shown in FIG. 3 (A), the pumice 12 having an average particle diameter of 20 mm to 50 mm is mixed and spread in the accommodation space S defined by the inside of the suction preventing material 11 and each valley 2. The lowermost pumice layer 13 is formed. Next, as shown in FIG. 3 (B), an average square size or outer diameter of 20 to 50 mm of charcoal 14 is mixed and spread on the lowermost pumice layer 13, and an intermediate charcoal layer 15 is formed. The height of the pumice layer 13 and the charcoal layer 15 formed is about 70 mm. And as shown in FIG.3 (C), the drainage lightweight soil 16 is spread | laid and leveled on the charcoal layer 15 of an intermediate | middle layer, the drainage lightweight soil layer 17 of a surface layer is formed, and the drainage of a surface layer is finally carried out. A plant 18 such as a sedum that is relatively resistant to drying is planted along the valley portion 2 on the lightweight soil layer 17. FIG. 3D shows a state after the plant 19 has been planted and the root 19 has grown. The pavement 12, the charcoal 14, and the drainage lightweight soil 16 are sequentially spread on the valley 2 of the folded plate roof 1, and finally the plant 18 is planted. According to the greening method of the present invention, the greening facility Ten installations are very simple and quick.

  As a building to which the tree planting method of the present invention is applied, a care house, a convenience store, a gas station, a warehouse, a factory, and the like are suitable, but the building to which the method is applied is not limited thereto.

  Since two layers of the charcoal layer 15 and the pumice layer 13 are formed under the drainable lightweight soil layer 17, the roots 19 of the plant 18 develop to the bottom surface of the valley portion 2 of the folded-plate roof 1 by these two layers. Moreover, the action of the pumice 12 of the lowermost pumice layer 13 can prevent the root 19 of the plant 18 from penetrating the folded plate roof 1 and entering the lower side thereof. In addition, a root-proof sheet may be laid under the pumice layer 13 to prevent the root 19 from entering in a triple and triple manner.

  Thus, according to the present invention, it is possible to easily and quickly construct a greening facility on a folded plate roof, and to realize a greening method that does not require a mounting bracket and is inexpensive to construct. In addition, the constructed greening facilities are excellent in drainage and water retention, and management and maintenance of planted plants is easy. In addition, the bottom pumice layer can prevent the roots of planted plants from penetrating through the folded plate roof and invading under it, without using a root-proof sheet. It is possible to prevent muddy water from flowing out and to prevent rust / corrosion generated on the metal folded plate roof due to acid rain damage due to the neutralizing action of charcoal.

  The present invention is a greening method capable of easily and quickly constructing a greening facility on a folded plate roof regardless of the mounting bracket, and the constructed greening facility has excellent drainage, water retention, and durability. As a thing, it is widely available.

The perspective view which shows one Embodiment of this invention, and shows the greening equipment formed on the folded-plate roof by construction of this invention, A cross-sectional view of the greening facility shown in FIG. (A) thru | or (D) is a figure which shows the construction procedure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folded plate roof 2 Valley part 3 Folded plate component 4 Mountain part 5 Bolt 6 Building 7 Girder material 8 Eaves 10 Greening equipment 11 Suction prevention material 12 Pumice 13 Pumice layer 14 Charcoal 15 Charcoal layer 16 Drainable lightweight soil 17 Drainable lightweight Soil layer 18 plant 19 root S accommodation space

Claims (5)

  An inverted trapezoidal suction prevention material is fixed to the eaves side of each valley of the folded-plate roof of the building, and the accommodation space defined by the inside of the suction-preventing material and each valley of the folded-plate roof is regarded as a cultivation pot. In this space, pumice, charcoal, and drainable lightweight soil are spread in order to form a pumice layer, charcoal layer, and drainable lightweight soil layer in order, and plants are planted on the surface drainable lightweight soil layer. A greening method for folded-plate roofs, characterized by being planted.   2. The folding according to claim 1, wherein an average particle diameter of the pumice forming the pumice layer is 20 mm to 50 mm, and an average square dimension or an outer diameter of the charcoal forming the coal layer is 20 mm to 50 mm. A greening method for flat roofs.   The drainable lightweight soil forming the drainable lightweight soil layer has a aggregate structure having a specific gravity of 0.3 to 0.8 kg / l and a porosity of 30 to 50%. The greening method of the folded-plate roof according to 2. The suction inhibitory material, a natural fiber as a primary material, characterized in that it is a basis weight ^{300g / m 2 ~600g / m 2} , folded plate roof according to any one of claims 1 to 3 Greening method.   An inverted trapezoidal suction prevention material is fixed to the eaves side of each valley of the folded roof of the building, and the accommodation space defined by the inside of the suction prevention and each valley of the folded roof is regarded as a cultivation pot. Pumice, charcoal, and drainable lightweight soil are laid in order in the accommodation space to form a pumice layer, charcoal layer, and drainable lightweight soil layer in order, and plants are planted on the surface drainable lightweight soil layer. The planted green facility for folded-plate roofs.

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