JP6823904B2 - Construction method of gentle slope roof using folded plate roof material - Google Patents

Description

The present invention relates to, for example, a method for constructing a gentle slope roof using a folded plate roofing material used for a gentle slope roof of a relatively large convenience store or a pharmacy along a main road such as a warehouse or a factory.

For example, for roofs of warehouses, factories, relatively large convenience stores and pharmacies along highways, so-called gentle slope roofs with a gentle slope angle and the entire upper surface of the roof gently sloped in the same direction are often used (for example). See Patent Document 1). In order to prevent water leakage, such a gentle slope roof is generally assembled by arranging long folded plate roofing materials side by side and fitting their widthwise ends to each other.

In addition to the roof structure using the folded plate roofing material, for example, a deck material as a base material is provided on H-shaped steel, a heat insulating material is layered on the deck material, and a waterproof sheet is attached to the upper surface of the heat insulating material to provide heat insulating properties. A roof structure with improved waterproofness is also known (see, for example, Patent Document 2).

JP-A-2010-37908 JP-A-2017-193945

In the case of a structure in which a large number of the above-mentioned long type folded plate roofing materials are arranged side by side and fitted together, the following points are mentioned as problems. First of all, it is necessary to prepare a large number of long type folded plates whose length of the folded plate roofing material is very long, about several tens of meters to 100 meters, depending on the scale of the building.

When such a long type folded plate roofing material is used, even if a large number of folded plate roofing materials are manufactured at a factory away from the roof construction site and these are transported to the roof construction site by a large truck or the like. It is practically impossible because the length of the folded plate roofing material is too long.

Therefore, we bring a roll-type molding machine to the roof construction site, mold a large number of long-type folded-plate roofing materials at the construction site, and after the molding work or according to the molding work, long-type folded-plate roofing material. It is necessary to lift the roof on the roof of the building.

The problem at this stage is that in order to manufacture a long type folded plate roofing material at the construction site, a large roll molding machine must be brought to the roof construction site and used at the construction site for a certain period of time. .. Therefore, it is necessary to use a very large large truck for transportation, and not only is it difficult to carry in the roll-type molding machine, but also the molding machine is exposed to rain due to the weather, which causes functional deterioration. Similarly, a very large iron plate roll, which is molded as a long folded plate roofing material by a roll molding machine, must be brought into the construction site, and a very large transport truck is procured for these carrying-in operations. There is a need.

Further, since the roll molding machine must be left at the construction site for a certain period of time, it is not possible to simultaneously manufacture different types of folded plate roofing materials used at the construction site of other roofs. Since roll molding machines are very large and expensive manufacturing equipment, it is difficult to have many such molding machines, and once installed at the construction site, other types of folded plate roofing materials can be manufactured. It may disappear and interfere with the construction schedule of other roofs.

Further, when a long type folded plate roofing material is manufactured by a roll type molding machine and then carried up to a roof portion of a building, the weight of one folded plate roofing material becomes considerably large. Therefore, in order to carry this long type folded plate roofing material to the roof part of the building, a heavy machine such as a fairly large crane car is prepared and the folded plate roofing material is lifted to the roof part of the building. There must be.

In addition, when lifting such a long type folded plate roofing material to the roof portion, it is necessary to lift it while maintaining a balance, which makes the work extremely difficult. Specifically, it is said that the tenbin, which is a hanging metal fitting, is used to attach wires attached to several places in the longitudinal direction of the folded plate roofing material, and the crane car is used to lift the tenbin to the construction part of the roof of the building, and then all the tenbins are removed. Troublesome work is required.

In addition, when lifting the above-mentioned long-type folded-plate roofing material from the bottom of the building to the roof, a number of workers are required on the lower and upper sides of the building to safely and reliably lift it to the top of the building. Need to be placed.

However, due to the shortage of workers and builders who are skilled in roof installation work, so-called roofers (hereinafter, appropriately referred to as "roofers") at roof construction sites these days, long type folded plates. When using roofing materials, it is currently very difficult to gather the number of roofers that match the construction site.

In addition, there is a safety problem that it is dangerous to lift a long type folded plate roofing material using a tenbin while arranging a number of workers under each of such a building and on the roof installation part. Has also occurred.

In addition, after all the long type folded plate roofing materials are lifted to the roof installation location, they are installed side by side on the main building, and the widthwise ends of the adjacent folded plates are fitted together. However, since it is a long type, the length of one folded plate roofing material is very long, and it is necessary to perform fitting work at the same time in the longitudinal direction. In the case of a long type folded plate roofing material, a number of roofers must be arranged at appropriate intervals along the longitudinal direction of the roofing material to perform the fitting work.

Therefore, it is necessary to secure a large number of roofers on a predetermined schedule according to the schedule of roofing work using a long type folded plate roofing material, and as described above, the roof Due to the shortage of human resources in the field of construction, it may be difficult to adjust the schedule, and the construction period may be delayed.

Further, there is a problem that occurs after a long period of time has passed since the construction of the roof with the long type folded plate roofing material was completed. Specifically, since the long type folded plate roofing material is made of one very elongated metal plate, there is a concern that the tight frame may be broken and scattered due to the influence of thermal stress.

The reason is that the roof is a structure that covers the entire upper part of the building, so it is directly affected by all the harsh natural environments such as sunlight, wind and rain, and snow. Therefore, due to the influence of each of the four seasons and, for example, changes in the weather in midsummer (severe wind and rain caused by the scorching sun and sudden typhoons), each extremely elongated folded-plate roofing material individually undergoes thermal expansion and contraction. To do. This is because the tight frame is broken and scattered due to the influence of such thermal stress.

In addition, a problem arises even when the structure is provided with a heat insulating material on the entire roof using the folded plate roofing material. Specifically, in order to provide such a heat insulating material, it is necessary to form a so-called sandwich structure in which the heat insulating material is sandwiched between two folded plate roofing materials by a construction method called a double pack method.

In order to realize such a structure, once a long folded plate roofing material is covered over the entire roof of the building, the entire roof is covered with a heat insulating material, and a new folded plate roofing material is applied to the heat insulating material. Must be roofed on top. In order to realize such a structure, the lower folded plate roofing material is attached as the first step, the heat insulating material is attached on the folded plate roofing material as the second step, and further on the heat insulating material as the third step. Three steps are required to attach the folded plate roofing material.

Since the work of the first step and the third step and the work of the second step are completely different, a worker different from the roofer who installs the long folded plate roofing material on the building is the lower long one. Insulation will be installed on the folded plate roofing material.

Therefore, according to the construction schedule, we first secure a large number of roofers with folded plate roofing materials who are in charge of the first process, and after this process, many roofers with heat insulating materials are in charge of the second process. It is necessary to secure a large number of people, and after this process is completed, it is necessary to make a very troublesome schedule adjustment to secure a large number of roofers who are in charge of the third process and install the folded plate roofing material.

Furthermore, the number of long folded plate roofing materials made by the roll molding machine is doubled compared to the case without heat insulating material, and the roll molding machine is available while making many of these folded plate roofing materials. A long folded plate roofing material made of tenbin, which must be kept on the construction site, requires many workers in each of the first to third steps performed at a high place in the upper part of the building, and is dangerous. Lifting work must be done. Therefore, a considerably longer work schedule is required as compared with the installation of the roof when the heat insulating material is not installed, it is difficult to secure human resources for the roofer, and the construction cost is considerably increased.

Further, in the case of a roof structure in which a deck material as a base material is provided on the H-shaped steel described in the background technology, a heat insulating material is further layered, and a waterproof resin sheet is pasted on the deck material, the following points are raised as problems. ing.

First of all, the work of attaching an iron plate as a base material on H-shaped steel, which is a supporting steel material, the work of stacking a heat insulating material on it, and the work of attaching a tarpaulin to the upper surface of the heat insulating material by fusion. It will be done as separate work and will be done by different workers.

As mentioned above, in the current situation where there is a shortage of skilled roofers, it is difficult to completely secure the number of workers in each process during the schedule period in order to make the shortest schedule for the construction period. Therefore, this roof mounting method inevitably lengthens the construction period and causes a problem.

Further, in order to put the deck material firmly on the base material, for example, the distance between the H-shaped steels must be narrowed according to the deck material, and it has a long period of time to assemble the base material over the entire roof. The construction period will be extended and will affect the roof installation schedule.

Further, according to such a roof structure, there is a possibility that a deck material such as an iron plate, which is a base material, may fall when a large-scale earthquake, which has been a concern in recent years, occurs.

An object of the present invention can be suitably used for constructing a gentle slope roof such as a relatively large convenience store or a pharmacy along a warehouse, a factory, or a trunk road in a short construction period while keeping costs low and safe construction. The purpose of the present invention is to provide a method for constructing a gentle slope roof using a standard-sized folded plate roofing material.

In order to solve the above-mentioned problems, the method for constructing a gentle slope roof using the folded plate roofing material according to claim 1 of the present invention is
Construction of a gentle slope roof on a building In the construction method of a gentle slope roof using a folded plate roofing material,
A folded plate roofing material used for the gentle slope roof, which is a standard-sized folded plate roofing material having a predetermined length separately from the size of the roof of the building to be attached, and the folded plate roofing material. A large number of folded plate roofing materials composed of a resin sheet for waterproofing the folded plate that covers the entire surface of the folded plate roof plate, which is the upper side surface of the building when the roof is attached to the building, are prepared for the amount of the gentle slope roof. ,
Carry these folded plate roofing materials to the gentle slope roof installation part of the building and
In the gentle slope roof installation portion, the end portions of the folded plate roofing material on the upstream side in the water flow direction and the vicinity thereof are the end portions of the folded plate roofing material on the downstream side in the water flow direction. Each of the folded plate roofing materials is attached to the main building in order so that the folded plate roofing material end overlapping portion is formed on the upper side of the roofing material, and each folded plate constituting the gentle slope roof. A resin sheet for waterproofing the folded plate roof material overlapping portion having a predetermined width for waterproofing all the folded plate roof material end overlapping portions of the roofing materials, in the water flow direction of the folded plate roof material end overlapping portion Stack so as to cover the lower end of the folded plate roofing material on the upstream side,
Low-gradient roof Ru building installation folded plate roof of waterproof by welding to the folded plate waterproofing resin sheet provided on an upper surface of the folded plate roof material which overlaps the folded plate roof material overlapping portion waterproofing resin sheet It is a method of constructing a gentle slope roof using materials .
When a large number of the folded plate roofing materials are prepared for roofing the building and the roof is attached to the building by the method of constructing a gentle slope roof using the folded plate roofing material, the width direction of the adjacent folded plate roofing material A roofing material fitting cap that is elongated in the longitudinal direction as well as the longitudinal direction of the folded plate roofing material and whose upper surface is covered with a cap waterproof resin sheet is fitted and joined, and this cap and both sides on which the cap is fitted are fitted and joined. A resin sheet for waterproofing the cap fitting portion having a predetermined width is overlapped so as to cover all the gaps with the folded plate roofing material over the entire longitudinal direction thereof.
The cap is fused by fusing the cap fitting portion waterproof resin sheet to both the folded plate waterproof resin sheet provided on the upper side surface of the folded plate roofing material on which the cap fitting portion is fitted and the cap waterproof resin sheet provided on the upper side surface of the cap. It is characterized by attaching a waterproof gentle slope roofing material to the building to further waterproof the fitting portion .

Further, the method for constructing a gentle slope roof using the folded plate roof material according to claim 2 of the present invention is the method for constructing a gentle slope roof using the folded plate roof material according to claim 1 .
Instead of superimposing the lower end portion of the folded plate roofing material on the upstream side in the water flow direction and its vicinity on the upper end portion of the folded plate roofing material on the downstream side in the water flow direction and the upper side in the vicinity thereof to fix both, the water flow. The lower end of the folded plate roofing material on the upstream side in the direction is connected to each other in a state of being abutted against the upper end of the folded plate roofing material on the downstream side in the water flow direction.
A resin sheet for waterproofing between the abutting ends of the folded plate roofing material is covered on this connecting portion, and the upper side surface of the folded plate roofing material above and below the water flow direction on which the resin sheet for waterproofing between the abutting end portions of the folded plate roofing material overlaps. By fusing to both of the resin sheets for waterproofing the folded plate provided in the above, the feature is to provide waterproofing between the abutting ends of the roofing material of the folded plate.

Further, the method for constructing a gentle slope roof using the folded plate roof material according to claim 3 of the present invention is the method for constructing a gentle slope roof using the folded plate roof material according to claim 1 or 2 .
The lower portion of the folded plate roofing material is characterized by being provided with a heat insulating material.

According to the present invention, for example, when constructing a gentle slope roof such as a warehouse, a factory, a relatively large convenience store or a pharmacy along a main road, a specially devised standard-sized folded plate roofing material is used to provide excellent waterproofness. It is possible to construct a gentle slope roof in a short construction period at a low cost and safely.

It is a perspective view of the folded plate roofing material used in the construction method of the gentle slope roof which concerns on 1st Embodiment. An end view (FIG. 2 (a)) showing a folded plate roofing material used in the method for constructing a gentle slope roof according to the first embodiment, and water when the roof is attached to a main building shown by a combination of a two-dot chain line and a dotted line. An end view showing a state in which the lower end of the folded plate roofing material indicated by the solid line on the upstream side in the flow direction and its vicinity overlap the upper end portion of the folded plate roofing material indicated by the dotted line on the downstream side in the water flow direction and its vicinity (FIG. 2). (B)). The roofing materials adjacent to each other in the lateral direction at the folded plate roofing material end overlapping portion of the first embodiment shown in FIG. 2B are fitted to each other, and further, the folded plate roofing material overlapping portion waterproof resin sheet shown by the solid line. The first one provided with a heat insulating material on the folded plate roofing material of FIG. 3 (a) and the end surface view (FIG. 3 (a)) showing a state in which the folded plate roofing material is placed on the upper side of the overlapping portion and fused. The roofing materials adjacent to each other in the lateral direction of the folded plate roofing material according to the modified example of the embodiment are fitted to each other, and the folded plate roofing material overlapping portion waterproof resin sheet shown by the solid line is placed on the upper side of the folding plate roofing material end overlapping portion. It is an end view (FIG. 3 (b)) which shows the state which covered with and fused. In the first embodiment shown in FIGS. 1 and 2, the lower end of the folded plate roofing material on the upstream side in the water flow direction and its vicinity are defined as the upper end of the folded plate roofing material on the downstream side in the water flow direction and its vicinity. It is a top view which shows the state which was piled up and riveted with a screw. The folded plate roof material that connects the upstream side and the downstream side in the water flow direction shown in FIG. 4 is connected to each other on both sides in the direction orthogonal to the water flow direction, and also on the upstream side and the downstream side in the water flow direction. It is a top view which shows the state which the material was fitted. In the state shown in FIG. 5, the folded plate roofing material according to the first embodiment covers all the overlapping portions of the folded plate roofing materials formed by fitting each other in the direction orthogonal to the water flow direction. It is a top view which shows the state which covered and fused with the overlapping part waterproofing resin sheet. It is explanatory drawing which shows the construction method of the gentle slope roof using the folded plate roofing material which concerns on 1st Embodiment in an easy-to-understand manner. It is explanatory drawing which shows an example of the construction procedure following FIG. It is explanatory drawing which shows an example of the construction procedure following FIG. It is explanatory drawing which shows an example of the construction procedure following FIG. It is explanatory drawing which shows an example of the construction procedure following FIG. It is explanatory drawing which shows an example of the construction procedure following FIG. 11, and is the figure which shows the state which completed the construction of the gentle slope roof which concerns on 1st Embodiment. In the configuration shown in FIG. 6, in order to embody the second embodiment, a half-roofed roofing material fitting portion waterproof resin sheet is provided so as to cover the fitting portion between the folded plate roofing materials adjacent to each other in the width direction. It is a top view which shows the state which was laminated and fused. The main building (AA cross-sectional view in FIG. 13) shows a state in which the portion of the folded plate roof material fitting portion waterproof resin sheet fused to the folded plate roof material is cut along a direction orthogonal to the water flow direction. A cross-sectional view (FIG. 14 (a)) shown together with a combination of a dotted line and a two-point chain line, and a resin sheet for waterproofing the overlapping portion of the folded plate roof material are further melted on the resin sheet for waterproofing the overlapping portion of the folded plate roof material. A cross-sectional view (for example, a BB cross-sectional view in FIG. 13) obtained by cutting the worn portion along a direction orthogonal to the water flow direction is shown together with a main building (shown as a combination of a dotted line and a two-point chain line) (FIG. 14 (b). )). It is explanatory drawing which shows an example of the construction procedure following FIG. 12, and is the figure which shows the state which completed the construction of the gentle slope roof which concerns on 2nd Embodiment. It is an end view which shows the modification of the folded plate roofing material which concerns on this invention. It is an end view which shows the further modification of the folded plate roofing material which concerns on this invention which is different from FIG. The folded plate roofing material of the further modified example of the present invention shown in FIG. 17 is brought into contact with the end portion in the water flow direction while fitting the other outer haze to the inner haze in the direction orthogonal to the water flow direction. It is an end view which shows the state in which the resin sheet for waterproofing the end contact portion contact portion of the folded plate roof material is fused to the upper side of this end portion. After the folded plate roofing material shown in FIG. 18 is attached to the purlin, the resin sheet for waterproofing the folded plate roofing material fitting portion according to the second embodiment other than the overlapping portion of the folded plate roofing material end portion according to the first embodiment. It is an end view which shows the state which only fused. It is an end view which shows the state which used the folded plate roofing material which provided the heat insulating material on the lower surface in addition to the structure of the half-fold heat insulating material shown in FIG.

Hereinafter, an embodiment of a method for constructing a gentle slope roof using a folded plate roofing material according to the present invention will be described with reference to the drawings. First, the folded plate roofing material 10 used in the method for constructing a gentle slope roof according to the first embodiment and the method for constructing a gentle slope roof using the same will be described.

FIG. 1 is a perspective view of a folded plate roofing material used in the method for constructing a gentle slope roof according to the first embodiment. Further, FIG. 2 shows an end view (FIG. 2 (a)) showing a folded plate roofing material used in the method for constructing a gentle slope roof according to the first embodiment, and a main building showing the roof as a combination of a two-dot chain line and a dotted line. The state where the lower end of the folded plate roofing material indicated by the solid line on the upstream side in the water flow direction and its vicinity overlap with the upper end portion of the folded plate roofing material indicated by the dotted line on the downstream side in the water flow direction and its vicinity. It is an end view (FIG. 2B) which shows. Further, FIG. 3 shows the folded plate roofing material of the first embodiment shown in FIG. 2B in which the roofing materials adjacent to each other in the lateral direction at the overlapping portion of the end portions are fitted together, and further shown by a solid line. A heat insulating material is applied to the folded plate roofing material shown in the end view (FIG. 3 (a)) and FIG. 3 (a) showing a state in which a resin sheet for waterproofing the overlapping portion is put on the upper side of the folded plate roofing material and fused. The roofing materials adjacent to each other in the lateral direction of the folded plate roofing material according to the modified example of the first embodiment provided with the above are fitted together, and the folded plate roofing material overlapped portion waterproof resin sheet shown by the solid line is used as the folded plate roofing material. It is an end view (FIG. 3 (b)) which shows the state which covered and fused to the upper side of the end overlap portion. Further, in FIG. 4, in the first embodiment shown in FIGS. 1 and 2, the lower end portion of the folded plate roofing material on the upstream side in the water flow direction and its vicinity are formed on the folded plate roofing material on the downstream side in the water flow direction. It is a top view which shows the state which overlapped and riveted with a screw on the upper end part and its vicinity. Further, FIG. 5 shows the folded plate roofing material connecting the upstream side and the downstream side in the water flow direction shown in FIG. 4 on both sides in the direction orthogonal to the water flow direction, and also on the upstream side and the downstream side in the water flow direction. It is a top view which shows the state in which the folded plate roofing material connected to each other is fitted. Further, FIG. 6 shows the first embodiment so as to cover all the overlapped portions of the edge portions of the folded plate roofing material formed by fitting each other in the direction orthogonal to the water flow direction in the state shown in FIG. FIG. 5 is a plan view showing a state in which a resin sheet for waterproofing the overlapping portion of the folded plate roof material according to the above is covered and fused.

It should be noted that FIGS. 1 to 6 show dimensions and shapes included in the present invention that differ from the actual dimensions and shapes of each component of the folded plate roofing material 10 in order to facilitate understanding of the description of the present invention. It is shown by. In particular, the thickness of the resin sheet for waterproofing the overlapping portion of the folded plate roofing material, which is the main part of the present invention, is drawn thicker.

The folded plate roofing material (hereinafter, appropriately simply referred to as “folded plate roofing material”) 10 used in the method for constructing a gentle slope roof according to the first embodiment is, for example, a warehouse, a factory, a relatively large convenience store or a pharmacy along a main road. It is a folded plate roofing material used for gentle slope roofs such as. Then, as the folded plate roofing material 10, a fixed-length folded plate roof plate 110 having a predetermined length separately from the size of the roof of the building to be attached and the folded plate roofing material 10 are attached to the building. A resin sheet 120 for waterproofing the folded plate is provided so as to cover the entire surface of the folded plate roof plate 110 which is the upper side surface in the folded state. The folded plate waterproof resin sheet 120 has a length and a width that just overlap the upper surface of the folded plate roof plate 110.

The folded plate waterproof resin sheet 120 is a resin having the same width as the material of the folded plate waterproof resin sheet 120 on the steel plate which is the material of the folded half roof plate 110 when the folded plate roof material 10 is manufactured by the roll molding machine. By molding the sheets in a stacked state using a roll molding machine, the folded plate roofing material 10 is formed by overlapping and integrating the lower side with the folded plate roofing material 10 and the upper side with the folded plate waterproofing resin sheet 120. (See FIGS. 1 and 2 (a)).

As shown in FIG. 4, the length of the folded-plate roofing material 10 is adjusted when the folded-plate roofing material is connected and attached to the main building, which is the installation portion of the gentle slope roof, along the water flow direction. The lower end 11 of the folded plate roofing material 10 on the upstream side in the water flow direction and its vicinity overlap with the upper end 12 of the folded plate roofing material 10 on the downstream side in the water flow direction and the upper side in the vicinity thereof. The length is such that the folded plate roofing material end overlapping portion 13 is formed in the portion. Then, as shown in the figure, the folded plate roofing materials are firmly connected to each other by riveting with a large number of screws 19 at the overlapping portion of the end portions of the folded plate roofing materials.

In the case of the present embodiment, a galvalume steel plate (registered trademark), which is an alloy-plated steel plate of aluminum or zinc, is used for the folded plate roof plate 110. Further, a vinyl chloride (polyvinyl chloride) sheet is used for the folded plate waterproof resin sheet 120. Then, a roll molding machine (not shown) is used with the folded plate waterproof resin sheet 120 stacked so as to cover the entire surface of the folded plate roof plate which is the upper side surface of the folded plate roof material 10 attached to the building. A predetermined mountain fold portion 111 and a valley fold portion 112 are formed in the longitudinal direction (see FIGS. 1 and 2).

One end of the folded plate roofing material 10 according to the first embodiment in the width direction is integrally formed with a cap as a cap portion 130 (see FIGS. 1 to 3 (a)). Then, when the folded plate roofing materials are arranged side by side in the direction orthogonal to the water flow direction, as shown in FIG. 3A, one of the width directions of the folded plate roofing material 10 on the right side in the drawing forming the cap portion 130 is formed. The end portion covers the upper side of the cap inner portion 140 forming the other end portion in the width direction of the folded plate roofing material arranged on the left side in the drawing (see FIG. 3A).

In addition, on the lower side of FIG. 3A, there is a downstream side in the water flow direction of the folded plate roofing material end overlapping portion 13 which is a connected portion of the adjacent folded plate roofing materials in the water flow direction of the folded plate roofing material 10. The folded-plate roofing material placed in is shown. Further, on the upper side of FIG. 3A, there is an overlapping portion 13 at the end of the folded plate roofing material, which is a connected portion of the adjacent folded plate roofing materials 10 in the water flow direction of the folded plate roofing material described later (FIGS. 4 to 4). 6) is overlaid, and the folded plate roofing material overlapping portion waterproofing resin sheet 200 fused to the folded plate waterproofing resin sheet 120 of the lower folded plate roofing material is shown.

In the present embodiment, the folded plate roof plate 110 of the folded plate roof material 10 is created as, for example, a standard-sized folded plate roof material having a length of about 10 m and a width of about 30 cm to 50 cm. Further, the folded plate waterproof resin sheet 120 is roll-formed so as to cover not only the mountain fold portion 111 and the valley fold portion 112 of the folded plate roof plate 110 but also the upper side surface of the cap portion 130. The thickness of the galvalume steel plate (registered trademark) forming the folded plate roof plate 110 is about 0.5 mm to 1 mm as an example, and the thickness of the vinyl chloride sheet forming the folded plate waterproof resin sheet 120 is about 1.5 mm as an example. It has become. However, it goes without saying that the present invention is not limited to such a dimensional relationship as long as the action can be exhibited.

Further, a resin sheet 200 for waterproofing the overlapping portion of the folded plate roofing material is prepared separately from the folded plate roofing material 10 (hatching that rises to the left in FIG. 6 and the folded plate roofing material 10 shown by dots in FIGS. 11 and 12). Refer to the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material extending in the direction orthogonal to the water flow direction of the roof in a state of being fused to the roof.

The resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material is a characteristic component in the present invention, and when each folded plate roof material 10 is attached to the main building 90 in sequence, or after attaching, a gentle slope roof is attached. Each of the constituent folded-plate roofing materials has a predetermined width sufficient for waterproofing at all the folded-plate roofing material end overlapping portions 13. Then, as shown in FIGS. 5 and 6, the folded plate roofing material overlapping portion 13 is overlapped so as to cover the lower end portion 11 of the folded plate roofing material on the upstream side in the water flow direction, and the folded plate roofing material overlapping portion is overlapped. By welding the waterproof resin sheet 200 to the folded plate waterproof resin sheet 120 provided on the upper side surface of each folded plate roof material 10 on which the waterproof resin sheet 200 overlaps, a gentle slope roof having waterproof specifications can be attached to the building.

In the case of the present embodiment, the folded plate roof material overlapping portion waterproof resin sheet 200 has a width of about twice the length of the folded plate roof material end overlapping portion 13 in the water flow direction. Specifically, assuming that the length of the folded plate roof material overlapping portion 13 in the water flow direction is 10 cm, the width of the folded plate roof material overlapping portion waterproof resin sheet 200 is about 20 cm. However, this width is only an example, and may be shorter than this as long as the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material can sufficiently fulfill its waterproof function.

Subsequently, a method of constructing a gentle slope roof using the folded plate roofing material 10 used in the method of constructing a gentle slope roof according to the first embodiment will be described. FIG. 7 is an explanatory view showing in an easy-to-understand manner a method of constructing a gentle slope roof using the folded plate roofing material according to the first embodiment. Further, FIG. 8 is an explanatory view showing an example of the construction procedure following FIG. 7. Further, FIG. 9 is an explanatory view showing an example of the construction procedure following FIG. Further, FIG. 10 is an explanatory view showing an example of the construction procedure following FIG. Further, FIG. 11 is an explanatory view showing an example of the construction procedure following FIG. Further, FIG. 12 is an explanatory view showing an example of the construction procedure following FIG. 11, and is a diagram showing a state in which the implementation of the construction method for the gentle slope roof according to the first embodiment is completed.

In constructing a gentle slope roof using the folded plate roofing material according to the first embodiment, first, a large number of the above-mentioned standard-sized folded plate roofing materials 10 are manufactured in a factory away from the roof construction site. I will do it. When manufacturing this folded plate roofing material, it is manufactured using a roll molding machine in the factory and stored in the factory or in a warehouse separate from the factory.

That is, according to the present invention, an arbitrary number of folded plate roofing materials 10 of any kind can be manufactured and stored in advance. Therefore, by making a slightly larger number of folded-plate roofing materials 10 having the same dimensions or different specifications of folded-plate roofing materials 10 having different dimensions, it is possible to quickly receive an order for new roof construction. Can be accommodated.

Next, these folded plate roofing materials 10 are transported to the construction site of the building where the roof should be installed. Since the folded plate roofing material 10 used in the method for constructing a gentle slope roof according to the present embodiment is a standard-sized roofing material having an average length of about 5 m to 12 m at the longest and not so long, it is attached to a building. Even if the roof is large, it can be handled by transporting it in several batches with a small truck, and it is not necessary to outsource a special large truck to a transportation company for large-scale transportation work.

Next, an appropriate number of folded plate roofing materials 10 carried to the construction site are collected and moved to the roof installation location at the upper part of the building by using a crane car or the like. Even in this case, it is not necessary to lift a long folded plate roofing material using a hanging metal fitting (tenbin) while arranging a large number of workers at the upper and lower parts of the building as described in the conventional example. Therefore, it is easy to secure a worker and the lifting work can be performed safely. In addition, it is not necessary to use a large crane car (heavy machine) as for the crane car as when fishing a long folded plate roofing material.

Next, the folded plate roofing material 10 is attached to the purlin 90 of the building. This procedure will be described below. Assuming that the purlins 90 of the building are provided perpendicular to the water flow direction, for example, at intervals of 2 m, as shown in FIG. 7, the first folded plate roofing material 10 (1-) is first placed at one end under the eaves. Install 1). At this time, it is attached to the purlin 90 using an appropriate fixture. Next, the second folded plate roofing material 10 (1-2) is attached to the main building 90 adjacent to the lateral direction (extending direction under the eaves, hereinafter simply referred to as "lateral direction") of the attached folded plate roofing material. At the same time, the other side in the width direction of the second folded plate roofing material 10 (1-2) is attached to the cap inner portion 140 on one side (right side in the figure) in the width direction of the first folded plate roofing material 10 (1-1). The cap portion 130 on the side (left side in the drawing) is firmly covered (see the state shown in FIG. 3A).

The cap portion 130 of the folded plate roofing material 10 which is subsequently attached to the cap inner portion 140 of the folded plate roofing material 10 which has already been attached while attaching the folded plate roofing material 10 laterally to the purlin 90 in this procedure. Cover it and fit it firmly. In this way, one row of folded plate roofing materials 10 (1-1) to 10 (1-n) is attached to the main building 90 on the lowermost side of the eaves from one end to the other end of the eaves in the lateral direction (perpendicular to the water flow) ( (See FIG. 8).

Next, on the upper side of the folded plate roofing material 10 (1-1) to 10 (1-n) in the first row in the horizontal direction, the folded plate roofing material 10 in the second row from the bottom in the water flow direction is performed in the same procedure as the above procedure. (2-1) to 10 (2-n) are attached (see FIG. 9). At this time, as shown in the cross-sectional view of FIG. 2B and FIG. 9, the end portion of the folded plate roofing material on the upstream side in the water flow direction and its vicinity (the solid line portion in FIG. 2B) are downstream in the water flow direction. The folded plate roofing material end overlapping portion 13 overlaps the upper side of the edge of the folded plate roofing material on the side and its vicinity (the portion of the region sandwiched between the dotted line and the solid line above it). Connect the two so that they are formed. After forming the folded plate roof material end overlapping portion 13 by this work, a large number of screws 19 are driven into this portion to rivet the folded plate roof materials to each other (see FIGS. 4 and 5).

The upper dotted line connected in the lateral direction of the connecting portion of the folded plate roofing material connected in the water flow direction in FIG. 9 is the upper end of the folded plate roofing material on the lower side in the water flow direction and is folded on the upper side in the water flow direction. The upper end portion 12 where the vicinity of the lower end of the plate roof material covers the upper end is shown. On the other hand, the lower solid line connected in the lateral direction of each folded plate roofing material end overlapping portion in FIG. 9 is the lower end of the folded plate roofing material on the upper side in the water flow direction and the folded plate roofing material on the lower side in the water flow direction. The lower end portion 11 that covers the vicinity of the upper side is shown.

Next, in the present embodiment, the third row folded plate roofing material 10 is in the same manner as the procedure for attaching the second row folded plate roofing material to the main building of the building with respect to the first row folded plate roofing material described above. (3-1) to 10 (3-n) are attached (see FIG. 10). By repeating such work, the standard-sized folded plate roofing material 10 is attached to the entire main building 90 at the upper part of the building.

Next, a resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material is prepared. Regarding the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material, the state after welding to the folded plate roof material is shown by the upper solid line in FIG. 3A and the hatching in the upper left in FIG. It is shown as a dot region extending in a direction orthogonal to the water flow direction of the folded plate roofing material in FIGS. 11 and 12.

As described above, the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material is for waterproofing all the overlapping portions 13 of the end portions of the folded plate roof materials of each folded plate roof material constituting the gentle slope roof. It has a predetermined width sufficient for waterproofing the overlapping portion. Further, in the case of the present embodiment, the folded plate roofing material overlapping portion waterproof resin sheet 200 covers all of the folded plate roofing material end overlapping portions 13 formed in each row so as to be orthogonal to the water flow direction at once. It has a covering length (see FIGS. 11 and 12).

In the case of the present embodiment, the length of the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material reaches from one end portion orthogonal to the water flow direction of the folded plate roof material 10 to the other end portion. However, in reality, a resin sheet 200 for waterproofing the overlapping portion of the folded plate roofing material having an appropriate length may be connected and used according to the scale of the roof to be constructed.

Then, the resin sheet 200 for waterproofing the overlapping portion of the folded plate roof material is overlapped so as to cover the lower end portion 11 of the folded plate roofing material 10 on the upstream side in the water flow direction of the folded plate roofing material overlapping portion 13, and the folded plate roofing material. A gentle slope roof with waterproof specifications is created by fusing the overlapping resin sheet 200 for waterproofing to the folded plate roofing resin sheet 120 provided on the upper side surface of each folded plate roofing material on which it overlaps with a heat welding device (not shown). Attach to the building.

In this way, the fusion waterproof portion 220 on the downstream side in the water flow direction is formed at all the connecting portions of the folded plate roofing materials adjacent to each other in the longitudinal direction (see FIGS. 6 and 12). As a result, despite the fact that the standard-sized folded plate roofing material 10 is used, it is completely in the water flow direction in the same way as the long roofing material made by using a roll molding machine at the roof construction site. The work of roofing the building can be completed as a waterproof structure.

It should be noted that the work of roofing the above-mentioned standard-length folded plate roofing material 10 on the main building 90 of the building and the folding plate provided on the upper side surface of each folded plate roofing material 10 on which the folded plate roofing material overlapping portion waterproof resin sheet 200 is overlapped. The same roofer may perform the work of fusing to the waterproof resin sheet 120 to form the fused waterproof portion 220 on the downstream side in the water flow direction, or the roofer's schedule adjustment and fatigue, which is important for safety. Another roofer may do it depending on the degree.

Further, after all the standard-sized folded plate roofing materials 10 are attached to the main building 90 over one row in the horizontal direction at a position on the downstream side with respect to the water flow direction, the position on the upstream side adjacent to the main building 90 is set. All the standard-sized folded plate roofing materials 10 are attached to the main building 90 over one row in the horizontal direction, and then the resin sheet 200 for waterproofing the overlapping portion of the folded plate roofing material is attached upstream in the water flow direction of the overlapping portion of the folded plate roofing material ends. The folded plate roofing material overlapping portion waterproofing resin sheet 200 is overlapped so as to cover the lower end portion 11 of the folded plate roofing material on the side, and the folded plate waterproofing resin sheet 120 provided on the upper side surface of each folded plate roofing material 10 on which this overlaps. By welding to, the work of sequentially forming the welded waterproof portion 220 on the downstream side in the water flow direction at the connecting portion between the folded plate roofing materials may be repeated.

Subsequently, the operation of the first embodiment described above will be described. By constructing the roof using the specially devised standard-length folded-plate roofing material 10 according to the first embodiment, the long-length folded-plate roofing material solves the problems described in the column of problems to be solved. Similarly, a gently sloping roof that ensures waterproofness can be roofed on the building.

More specifically, instead of installing a roll molding machine at the roof construction site to make a long folded plate roofing material as in the past, a standard-sized folded plate is used with a roll molding machine in a factory away from the site. A large number of roofing materials 10 can be made in advance and stored. Therefore, unlike the long type, the fixed length type folded plate roofing material 10 has a short length, so the folded plate roofing material 10 is manufactured at the factory and transported to the construction site without using a large-scale truck. be able to.

In addition, since a standard-sized folded plate roofing material 10 can be made in advance with a roll molding machine in the factory, a roll type molding machine or a very large iron plate roll formed by the roll type molding machine can be installed on the roof construction site. There is no need to leave it during the construction period. Furthermore, it is not necessary to carry out large-scale work that poses a safety problem by lifting a long type folded plate roofing material to the roof installation location by a large number of people using hanging metal fittings (tenbins).

Also, unlike the case of using a long type folded plate roofing material, it is not necessary to gather many roofers at once when constructing the roof, so a small number of skilled roofers are gathered according to the construction schedule. easy. In addition, since the length of one folded plate roofing material is a standard size, the physical burden on the roofer is lightened and the work progresses, and the safety of the roofer during the roof construction work performed at a high place. Can be secured.

In addition, it is possible to prevent a problem that the tight frame or the like is broken and scattered after a long period of time after the roof is constructed, unlike a long type folded plate roofing material.

In addition, since a specially devised standard-length folded-plate roofing material 10 is used, when attaching the folded-plate roofing material 10 to the main building 90, each long folded-plate roofing material is attached to the main building with a large-scale work. Unlike the conventional method of mounting, it is possible to give time freedom and allowance to the construction work.

Subsequently, the folded plate roof material 10 used in the construction method of the gentle slope roof according to the modified example of the first embodiment and the construction method of the gentle slope roof using the folded plate roof material 10 will be described. FIG. 3B is an end view showing a state in which two folded plate roofing materials according to a modified example of the first embodiment are fitted in the lateral direction (direction orthogonal to the water flow direction of the folded plate roofing material). Is.

The folded plate roof material 10 used in the method for constructing a gentle slope roof according to this embodiment includes a folded plate roof material in addition to the folded plate roof material 10 used in the method for constructing a gentle slope roof according to the first embodiment. It is characterized in that the heat insulating material 150 is provided on the folded plate roof plate which is the lower side surface when attached to.

In the case of the present embodiment, the material of the heat insulating material 150 is a foaming material generally used as a heat insulating material for the roof. In this case, as an example of the dimensions of the foaming material, assuming that the height (mountain height) of the mountain fold portion 111 with respect to the valley fold portion 112 of the folded plate roof material 10 is about 100 mm, the thickness of the heat insulating material 150 is 30 mm or more. Select an appropriate thickness in consideration of the heat insulating effect.

The heat insulating material 150 is made of a thick plate-like body having a predetermined uneven shape in view of the end face, and is one of the folded plate roofing materials (folded plate roof on the left side of FIG. 3B) as in the first embodiment. The cap portion 130 of the other folded plate roofing material (folded plate roofing material on the right side of FIG. 3B) adjacent to the width direction of the folded plate roofing material is covered with the cap inner portion 140 of the material). By fitting a fixing bracket, which is not described in detail here, into the uneven portion formed by the mountain fold portion 111 and the valley fold portion 112 on the back side of the folded plate roof plate 110, the fixing bracket is firmly attached to the back side of the folded plate roof plate 10. It is fixed. The heat insulating material 150 may be fixed to the folded plate roofing material 10 immediately before the folded plate roofing material 10 is attached to the main building 90, and the folded plate roofing material 10 may be fixed before the folded plate roofing material 10 is lifted or at a factory. May be attached when the roll molding machine is used.

Then, when constructing a gentle slope roof using the folded plate roofing material 10 provided with the heat insulating material 150 according to the modified example of the first embodiment, basically, the first shown in FIGS. 7 to 12 It is carried out in the same manner as the roof construction method in the first embodiment. In the present embodiment, when the upper end surface and the lower end surface of the heat insulating material 150 in the longitudinal direction are flush with the upper end portion and the lower end portion of the folded plate roof material 10 in the water flow direction, the folded plate roof material is placed in the water flow direction. When connecting to, unlike the first embodiment, the lower end of the folded plate roofing material on the upper side in the water flow direction is brought into contact with the upper end portion of the folded plate roofing material on the lower side in the water flow direction.

On the other hand, when the lower end portion 11 of the folded plate roofing material 10 in the water flow direction is longer than the lower end surface of the heat insulating material 150 in the longitudinal direction by a certain amount, it is on the lower side in the water flow direction as in the first embodiment. As shown in FIGS. 4 and 5, a large number of screws 19 are used by covering the upper end portion 12 of the folded plate roofing material 10 and its vicinity with the lower end portion 11 of the folded plate roofing material on the upper side in the water flow direction and its vicinity. Rivet and fix both. In this case, the upper end 12 of the folded plate roofing material 10 on the lower side in the water flow direction and its vicinity are specified by the alternate long and short dash line on the lower side of FIG. 3A in which the heat insulating material is not shown in the drawing. To.

The operation of the folded plate roofing material 10 provided with the heat insulating material according to the modified example of the first embodiment will be described below. Basically, it exerts the same action as the folded plate roofing material 10 used in the method for constructing a gentle slope roof according to the first embodiment, but in addition to this, this modified example has the following special actions. It will be possible to demonstrate.

Specifically, when roofing a roof provided with a heat insulating material 150 as in the modified example of this first embodiment, if a conventional long type folded plate roofing material is used, a double pack structure must be formed. However, the construction period was extremely long, but by using the standard-sized type folded-plate roofing material 10 equipped with the resin sheet 120 for waterproofing the folded-plate according to this modification, the folded-plate roofing material 10 was added to the main building 90. The roof construction can be completed with just one roof.

That is, unlike the conventional double-pack roof structure, it is not necessary to complete the roof through a three-step process of roofing once, placing a heat insulating material on it, and then roofing it. Eliminating the large-scale and dangerous lifting work of lifting a long roof with a tenbin, such as adjusting the schedule of skilled roofers, delaying the construction period, and increasing costs explained in the conventional example issues, and the accompanying large number of people It can solve all problems such as difficult schedule adjustment of workers and ensuring the safety of roofers and other related workers related to roof construction.

Subsequently, the folded plate roof material 10 used in the construction method of the gentle slope roof according to the second embodiment and the construction method of the gentle slope roof using the folded plate roof material 10 will be described. In the configuration shown in FIG. 6, in order to embody the second embodiment, FIG. 13 shows waterproofing of the folded plate roofing material fitting portion so as to cover the fitting portion between the folded plate roofing materials adjacent to each other in the width direction. It is a top view which shows the state which the resin sheets for use were piled up and fused. Further, FIG. 14A is a cross-sectional view of a portion of the folded plate roofing material fitting portion waterproof resin sheet fused to the folded plate roofing material cut along a direction orthogonal to the water flow direction. It is a cross-sectional view of AA in FIG. Further, FIG. 14B shows a portion in which the waterproof resin sheet for the overlapping portion of the folded plate roof material is further fused on the resin sheet for waterproofing the overlapping portion of the folded plate roof material along the direction orthogonal to the water flow direction. It is a cross-sectional view (for example, BB cross-sectional view in FIG. 13) cut out. Further, FIG. 15 is an explanatory view showing an example of the construction procedure following FIG. 12, and is a diagram showing a state in which the implementation of the construction method for the gentle slope roof according to the second embodiment is completed.

The folded plate roofing material 10 used in the gentle slope roof construction method according to this embodiment also has the same basic structure as the folded plate roofing material 10 used in the gentle slope roof construction method according to the first embodiment. is there.

However, as a peculiar configuration of the second embodiment, in addition to preparing the resin sheet 200 for waterproofing the overlapping portion of the folded plate roofing material as in the case of the first embodiment, the adjacent folded plate roofing material Even in the fitting portion in the width direction of 10, the folded-half roofing material fitting of a predetermined width so as to cover the widthwise end portion of the folded plate roofing material 10 to be covered on the upper side constituting the fitting portion over the entire longitudinal direction. It is characterized in that a resin sheet 300 for partial waterproofing is separately prepared.

Then, as described above, the folded and half roof material fitting portion waterproof resin sheet 300 is provided on the upper side surface of each folded plate roof material 10 which covers the fitting portions of the folded plate roof materials adjacent to each other in the width direction and overlaps the fitting portions. By fusing to the resin sheet 120 for plate waterproofing, it serves to make it possible to attach a waterproof gentle slope roofing material to the building, which is further waterproofed at the fitting portion in the width direction of the adjacent folded plate roofing material 10. There is.

Next, a roof construction method using the folded plate roofing material 10 of the second embodiment will be described. The roof construction method according to this embodiment is basically the same as the roof construction method according to the first embodiment, but the following steps are added. As described above, with respect to FIGS. 13 to 15, in order to facilitate understanding of the description of the present invention, the drawing method is slightly changed with respect to the actual form of each component of the folded plate roofing material 10. (Modified) and shown. In particular, the thickness of the resin sheet for waterproofing the overlapping portion of the folded plate roof material and the resin sheet for waterproofing the fitting portion of the folded plate roof material, which is the main part of this modification, is drawn thicker.

That is, the other folded plate roofing material (right side of FIG. 3A) adjacent to the cap inner portion 140 of one folded plate roofing material (folded plate roofing material on the left side of FIG. 13A) 10 in the width direction. After covering and fitting the cap portion 130 of the folded plate roof material) 10 and fusing the folded plate roof material overlapping portion waterproof resin sheet 200 according to the first embodiment to the folded plate roof material overlapping portion 13. , The half-roofing material fitting portion waterproof resin sheet 300 is put on the fitting portion between the folded plate roofing materials adjacent to each other in the width direction (see the solid line on the upper left side of FIG. 14A).

Then, the half-roof material fitting portion waterproof resin sheet 300 is fused to the folded plate waterproof resin sheet 120 provided on the upper side surface of each folded plate roof material 10 on which the half-roof material fitting portion waterproof resin sheet 300 overlaps. Then, the side fusion waterproof portion 260 is formed (see FIG. 13). As a result, a waterproof gentle slope roofing material that is further waterproofed at the fitting portion in the width direction of the adjacent folded plate roofing material is attached to the building.

In addition, in FIG. 13B, the half-roof material fitting portion waterproof resin sheet 300 is fused to the portion where the folded-half roof material fitting portion waterproof resin sheet 300 is fused to the folded plate waterproof resin sheet 120. Shows the state.

This mounting method will be described in a more understandable manner with reference to FIG. 12, which shows the entire roof. In the figure, one of the buildings has the folded plate roofing material end overlapping portion 13 (see FIG. 13) connected in the water flow direction of the adjacent folded plate roofing materials 10 in the direction orthogonal to the water flow direction. It runs from the eaves to the other eaves.

That is, in this state, the folded plate roof material overlapped portion waterproof resin sheet 200 is covered from above by the length of the folded plate roof material, and the folded plate roof above and below the water flow direction overlaps the upper surface of the covered lower folded plate roof material. It is fused to the folded plate roofing material waterproof sheet 120 of the material 10 by using a welding device (not shown). The steps up to this point are the same as the procedure for attaching the gentle slope roof according to the first embodiment described above.

In the second embodiment, as shown in FIGS. 13 to 15, in addition to this, the roof is already fixed to the main roof 90, and in the first embodiment, they are riveted to each other by screws 19 in the longitudinal direction and connected to each other for a long length. The length extending from the eaves to the bottom of the gently sloping roof so as to cover the fitting part of the folded plate roofing materials formed at the widthwise connecting part of the adjacent folded plate roofing materials of the folded plate roofing materials. Cover the half-roofed roofing material fitting portion with a waterproof resin sheet 300. Then, the side welded waterproof portion 260 is formed by welding the folded plate waterproof resin sheet 300 provided on the upper side surface of each folded plate roof material 10 on which the folded and half roof material fitting portion waterproof resin sheet 300 overlaps. (See FIG. 13).

This work is performed on the fitting portions of all the folded plate roofing materials formed between the adjacent elongated folded plate roofing materials (from the eaves to the bottom of the building in FIG. 15 at predetermined intervals in the width direction). (Refer to the resin sheet 300 for waterproofing a plurality of dot-shaped half-folded roofing material fitting portions extending apart from each other). As a result, this part can also be made to have a completely waterproof structure, the waterproof function can be further enhanced, and a roof having remarkably excellent waterproofness can be constructed.

In addition, a welding device (welding device) to the folded plate waterproof resin sheet 120 provided on the upper side surface of each folded plate roof material 10 on which the folded half roof material fitting portion waterproof resin sheet 300 of the folded plate roof material of the second embodiment is overlapped. Regarding the work of fusing by (not shown), the folded plate roof material overlapping portion waterproof resin sheet 200 used in the method for constructing a gentle slope roof according to the first embodiment described above is used for the folded plate roof material end overlapping portion. The folded plate roofing material 10 on the upstream side in the water flow direction of 13 is stacked so as to cover the lower end portion 11, and the folded plate roofing material overlapping portion waterproof resin sheet 200 is provided on the upper side surface of each overlapping folded plate roofing material 10. It is efficient in terms of construction to perform the work of welding to the folded plate waterproof resin sheet 120 by a welding device (not shown).

Subsequently, a method of constructing a gentle slope roof using a cap-mounted folded plate roofing material 50, which is a further modification of the above-described embodiment, will be described. FIG. 16 is an end view showing a modified example of the folded plate roofing material according to the present invention.

The folded plate roofing material 50 used in the method of constructing a gentle slope roof according to the cap-mounted embodiment is the folded plate roofing material 10 used in the method of constructing a gentle slope roof according to the first and first modifications of the first embodiment. And the basic configuration is common. The difference is that in the case of the folded plate roofing material 10 according to the first embodiment and its modification, one end side in the width direction forms the cap inner portion 140, and the other end side covers and fits the cap portion 130. However, in the case of this cap mounting type, each end of the folded plate roofing material 50 has cap fitting ridges 510 and 520 that are symmetrical with respect to the center in the width direction.

Further, in this cap-mounted embodiment, the waterproof resin sheet 530 made of a vinyl chloride sheet coincides with the end portion of the folded half roof plate 500 of the folded plate roof material 50 in the longitudinal direction, as in the above-described embodiment. In addition, in the width direction, as shown in FIG. 16, as an example, the ends 531, 532 extend to the inner ends of the cap fitting goby 510,520. Then, a cap 550 that fits into the cap fitting goby 510 and 520 is used over the entire length direction of the folded plate roofing material 50.

The cap 550 is provided with two goby engaging portions 551 and 552 facing each other, and the two goby engaging portions 551 and 552 are fitted into the downwardly bent portions of the cap fitting gobies 510 and 520, respectively. By doing so, the cap 550 firmly covers the cap fitting gobies 510 and 520 facing each other of the adjacent folded plate roofing materials 50, and the waterproofing of this portion is ensured.

Further, in the present embodiment, a resin sheet 600 for waterproofing the cap fitting portion is specially prepared. The cap fitting portion waterproof resin sheet 600 is for covering all the gaps between the cap 550 and the folded plate roofing material on both sides to which the cap 550 is fitted.

Then, all the gaps between the cap portion 130 and the folded plate roofing material 50 on both sides to which the cap portion 130 is fitted are covered with the cap fitting portion waterproof resin sheet 600, and the cap fitting portion waterproof resin sheet 600 is covered with the folded plate roofing material on which this overlaps. A welding device (not shown) provided on both the folded plate waterproof resin sheet 530 provided on the upper side surface of the 50 and the cap waterproof resin sheet (not shown) provided on the upper side surface of the cap 550 is fused in the same manner as in each of the above-described embodiments. As a result, it plays a role of making it possible to attach a waterproof gentle slope roofing material to the building to further waterproof the cap fitting portion.

Subsequently, the procedure for attaching the folded plate roofing material 50 to the building in the case of this cap attachment type embodiment will be described. First, two folded plate roofing materials 50 are arranged side by side and fixed to the main building 90, and the width of the cap fitting haze 510 on one end side in the width direction of one folded plate roofing material 50 and the width of the other folded plate roofing material 50. The cap fitting haze 520 on the other end side in the direction is separated by a small distance, and from above, both end-view inverted angle U-shaped caps 550 having the same length as the standard-sized folded plate roofing material are placed. It covers the cap fitting roofs 510 and 520 of the above and fits tightly. In this way, waterproofing between the folded plate roofing material 50 and the cap 550 is ensured by the same work procedure as the folded plate roofing material used in the construction method of the gentle slope roof according to the second embodiment described above. Can be done.

As explained above, according to the present invention, for example, when constructing a gentle slope roof such as a warehouse, a factory, a relatively large convenience store or a pharmacy along a main road, a very long so-called length that can be constructed only at a construction site. Instead of using a long folded plate roofing material, a gently sloping roof with excellent waterproofness that does not cause water leakage like when using a long folded plate roofing material while using a specially devised folded plate roofing material Can be constructed.

Along with this, the problem that always occurred when using a long folded plate roofing material as in the past, that is, installing a roll molding machine at the construction site or roofing a long folded plate roofing material made on the spot. It can solve the problem of having to keep using heavy machinery such as a fairly large crane car to be lifted on the roof during the construction of the roof.

Moreover, since it is not necessary to lift it by using a hanging metal fitting (tenbin), it is not necessary to gather a large number of workers according to the schedule. Further, it is preferable in terms of safety because it is not necessary to lift the long folded plate roofing material which involves such a danger. In addition, unlike a long folded plate roofing material, it is not necessary for a large number of roofers to gather at one time to construct the roof on the building, which makes it very easy to secure roofers.

Further, in the case of a double-pack structure with a heat insulating material, it is not necessary to use a long folded-plate roof material as in the conventional case, so that there is no need to use such a double-pack structure. You can roof the roof with a degree. As a result, it is not necessary to gather a large number of roofers, it is easy to adjust the schedule, and the construction period is much shorter than that of using a long folded plate roofing material. As a result, the construction cost can be significantly reduced.

In addition, H-shaped steel, which is a supporting steel material, such as a roof structure in which a deck material made of an iron plate as a base material is provided on the H-shaped steel, a heat insulating material is further layered, and a waterproof resin sheet is pasted on the deck material. There is no need for different roofers to perform the work of attaching an iron plate as a base material on top of it, the work of overlaying the heat insulating material on it, and the work of attaching a waterproof sheet to the upper surface of the heat insulating material by fusion, and a small number of people. Skilled roofers can roof the building in a short period of time.

Especially when a folded plate roofing material is used, it has sufficient strength and rigidity by itself, so that the span of the purlin can be increased, and H-shaped steel is placed at small intervals on the roof part as in the above structure. It is not necessary to stretch the roof, and the cost can be reduced and the construction period can be shortened.

Further, since the present invention can be applied to a cap-type folded plate roofing material, a gentle slope roof having excellent waterproofness can be constructed while using a standard-sized folded plate roofing material.

In addition, there is no concern that deck materials such as iron plates, which are the base materials, will fall when a large-scale earthquake, which has been a concern in recent years, occurs.

The present invention is not limited to the shapes, dimensions, materials, and construction methods described in the above-described embodiments and the corresponding drawings, and may vary as long as the effects of the present invention can be exhibited. Needless to say, other modifications also belong to the present invention.

Therefore, when connecting the folded plate roofing materials in the water flow direction, the water flow always flows at the lower end portion in the longitudinal direction of the folded plate roofing material on the upper side in the water flow direction and its vicinity as in the first embodiment and the second embodiment. It is not necessary to overlap the folded plate roofing material on the lower side in the direction so as to cover the upper end portion in the longitudinal direction and its vicinity.

That is, instead of superimposing the lower end portion of the folded plate roofing material on the upstream side in the water flow direction and its vicinity on the upper end portion of the folded plate roofing material on the downstream side in the water flow direction and the upper side in the vicinity thereof to fix both, the water flow direction. In a configuration in which the lower end of the folded plate roofing material on the upstream side is abutted against the upper end of the folded plate roofing material on the downstream side in the water flow direction and connected to each other, the overlapping portion of the folded plate roofing material is waterproofed. Instead of the resin sheet for folding plate, a resin sheet for waterproofing the folded plate roofing material abutting part is overlapped on this abutting part and fused with the resin part of the folded plate roofing material on the lower side to waterproof the abutting part. You can do it.

Hereinafter, the above configuration will be described in an easy-to-understand manner based on the drawings. FIG. 17 is an end view of the end-butting type folded plate roofing material 70. The folded plate roof material 70 has a configuration in which the folded plate waterproof resin sheet 702 is provided on the entire upper side surface of the folded plate roof plate 701 in the state of being attached to the main building 90 of the roof as in the above-described embodiment. There is. A resin sheet 740 (see FIG. 18) for waterproofing the end contact portion of the folded plate roof material is fused to the end contact portion in the water flow direction of the folded plate roof material 70 in the same manner as in the above-described embodiment. FIG. 18 shows the water flow direction of the folded plate roofing material 70 of the further modified example of the present invention shown in FIG. 17 while fitting the inner haze 710 and the other outer haze 720 in the direction orthogonal to the water flow direction. It is an end view which shows the state which brought the end part into contact with each other, and fused the folded plate roofing material end part contact part waterproof resin sheet 740 to the upper side of this end part. Further, FIG. 19 shows waterproofing of the folded plate roof material fitting portion other than the overlapped portion of the folded plate roof material end according to the first embodiment after the folded plate roof material 70 shown in FIG. 18 is attached to the purlin 90. It is an end view which shows the state which only the resin sheet 750 is fused. Further, FIG. 20 is an end view showing a state in which a folded plate roofing material 70 having a heat insulating material 760 on the lower surface thereof is used instead of the half-folded heat insulating material shown in FIG.

As is clear from the configurations shown in these drawings, the lower end of the folded plate roofing material on the upper side in the water flow direction and the folded plate on the lower side have an outer haze on one side in the width direction and an inner haze on the other side. The present invention may be applied to a method of constructing a gentle slope roof using a folded-plate roofing material of a type in which the upper end of the roofing material is abutted. Even in this case, the merits peculiar to the present invention when the above-mentioned heat insulating material is used can be shared.

Further, in the above-described embodiment, in the form of roofing the building shown in FIGS. 7 to 15, three folded plate roofing materials are connected in series in the water flow direction to form a long folded plate roofing material. However, in view of the gist of the present invention, for example, an extremely long folded plate roof made by connecting 10 or 20 such folded plate roofing materials in series and using a roll molding machine having a length of about 50 mm to 100 mm. It goes without saying that it can be roofed on the roof of a building instead of wood. That is, it should be added that according to the present invention, it is possible to deal with the case where a gentle slope roof is laid on an extremely large building while solving the conventional problems.

10 Folded roofing material 10 (1-1) -10 (1-n) First row from the downstream of the water flow Folded roofing material 10 (2-1) -10 (2-n) Second row from the downstream of the water flow Folded roofing material 10 (3-1) to 10 (3-n) Folded roofing material in the third row from the downstream of the water flow 12 Upper end 11 Lower end 13 Folded roofing material End overlapping part 19 Screws 50, 70 Folded roof material 90 Main building 110 Folded plate roof plate 111 Mountain fold part 112 Valley fold part 120 Folded plate waterproof resin sheet 130 Cap part 140 Cap inner part 150 Insulation material 200 Folded plate roof material Overlapping part Waterproof resin sheet 220 Water flow Direction Downstream side fused waterproof part 260 Side fused waterproof part 300 Folded half roof material Fitting part Waterproof resin sheet 500 Folded plate roof material 531,532 End part 510,520 Cap fitting Haze 530 Waterproof resin sheet 550 Cap 551 , 552 Haze engagement part 600 Cap fitting part Waterproof resin sheet 701 Folded plate roof plate 702 Folded plate waterproof resin sheet 710 Inner haze 720 Outer haze 740 Folded plate roofing material End contact part Waterproof resin sheet 750 Folded plate roof Resin sheet for waterproofing of material fitting part 760 Insulation material

Claims (3)

Construction of a gentle slope roof on a building In the construction method of a gentle slope roof using a folded plate roofing material,
A folded plate roofing material used for the gentle slope roof, which is a standard-sized folded plate roofing material having a predetermined length separately from the size of the roof of the building to be attached, and the folded plate roofing material. A large number of folded plate roofing materials composed of a resin sheet for waterproofing the folded plate that covers the entire surface of the folded plate roof plate, which is the upper side surface of the building when the roof is attached to the building, are prepared for the amount of the gentle slope roof. ,
Carry these folded plate roofing materials to the gentle slope roof installation part of the building and
In the gentle slope roof installation portion, the end portions of the folded plate roofing material on the upstream side in the water flow direction and the vicinity thereof are the end portions of the folded plate roofing material on the downstream side in the water flow direction. Each of the folded plate roofing materials is attached to the main building in order so that the folded plate roofing material end overlapping portion is formed on the upper side of the roofing material, and each folded plate constituting the gentle slope roof. A resin sheet for waterproofing the folded plate roof material overlapping portion having a predetermined width for waterproofing all the folded plate roof material end overlapping portions of the roofing materials, in the water flow direction of the folded plate roof material end overlapping portion Stack so as to cover the lower end of the folded plate roofing material on the upstream side,
Low-gradient roof Ru building installation folded plate roof of waterproof by welding to the folded plate waterproofing resin sheet provided on an upper surface of the folded plate roof material which overlaps the folded plate roof material overlapping portion waterproofing resin sheet It is a method of constructing a gentle slope roof using materials .
When a large number of the folded plate roofing materials are prepared for roofing the building and the roof is attached to the building by the method of constructing a gentle slope roof using the folded plate roofing material, the width direction of the adjacent folded plate roofing material A roofing material fitting cap that is elongated in the longitudinal direction as well as the longitudinal direction of the folded plate roofing material and whose upper surface is covered with a cap waterproof resin sheet is fitted and joined, and this cap and both sides on which the cap is fitted are fitted and joined. A resin sheet for waterproofing the cap fitting portion having a predetermined width is overlapped so as to cover all the gaps with the folded plate roofing material over the entire longitudinal direction thereof.
The cap is fused by fusing the cap fitting portion waterproof resin sheet to both the folded plate waterproof resin sheet provided on the upper side surface of the folded plate roofing material on which the cap fitting portion is fitted and the cap waterproof resin sheet provided on the upper side surface of the cap. A method for constructing a gentle slope roof using a folded plate roof material, which comprises attaching a waterproof gentle slope roof material to the building to further waterproof the fitting portion . Instead of superimposing the lower end portion of the folded plate roofing material on the upstream side in the water flow direction and its vicinity on the upper end portion of the folded plate roofing material on the downstream side in the water flow direction and the upper side in the vicinity thereof to fix both, the water flow. The lower end of the folded plate roofing material on the upstream side in the direction is connected to each other in a state of being abutted against the upper end of the folded plate roofing material on the downstream side in the water flow direction.
A resin sheet for waterproofing between the abutting ends of the folded plate roofing material is covered on this connecting portion, and the upper side surface of the folded plate roofing material above and below the water flow direction on which the resin sheet for waterproofing between the abutting end portions of the folded plate roofing material overlaps. The loosening using the folded plate roofing material according to claim 1, wherein the folded plate roofing material abutting ends are waterproofed by fusing to both of the folded plate waterproofing resin sheets provided in the above. Construction method of sloped roof. The method for constructing a gentle slope roof using the folded plate roofing material according to claim 1 or 2, wherein each lower portion of the folded plate roofing material is provided with a heat insulating material.

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