JP2019210739A - Construction method of gently sloped roof using folded-plate roof members - Google Patents

Abstract

To provide a construction method of a gently sloped roof which is very excellent in constructing a gently sloped roof of, for example, a storehouse and a factory, and a relatively large convenience store and a pharmacy along a main road and the like.SOLUTION: A gently sloped roof with excellent water-proof property is constructed by: preparing many folded-plate roof members 10 comprising folded-plate roof plates with a fixed length that is different from a roof size and folded-plate water-proof resin sheets covering the whole face; attaching an end portion in a longer direction of each folded-plate roof member to each other so that an overlapped portion of folded-plate roof member end portions is formed; and stacking and depositing water-proof resin sheets 200 which are used for overlapped portions of folded-plate roof members, and each of which has a prescribed width for making all overlapped portions of folded-plate roof member end portions waterproof, onto the folded-plate water-proof resin sheet included on an upper side face of each folded-plate roof member.SELECTED DRAWING: Figure 12

Description

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

  For example, roofs of warehouses, factories, relatively large convenience stores, pharmacies, and the like along main roads often use so-called gently-graded roofs with a gentle inclination angle and the entire upper surface of the roof gently inclined in the same direction (for example, Patent Document 1). In order to prevent water leakage, such a gently-sloped roof is generally assembled by fitting the ends in the width direction side by side with a long folded plate roofing material.

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

JP 2010-37908 A JP 2017-193945 A

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

  When using such a long type folded plate roof material, even if you manufacture a large number of folded plate roof materials at the factory apart from the roof construction site and try to transport them to the roof construction site with a large truck, Since the length of the folded roof material is too long, it is practically impossible.

  Therefore, bring a roll-type molding machine to the roof construction site, mold a lot of long-type folded-plate roofing material at the construction site, and then follow the molding work or the long-type folded-plate roofing material according to the molding work It is necessary to lift up the roof on the roof of the building.

  As a problem at this stage, in order to produce long type folded sheet roofing material at the construction site, it is necessary to bring a large roll forming machine to the construction site of the roof and continue to use it for a certain period of time . Therefore, it is necessary to use a very large transporting large truck. Not only is the roll-type molding machine difficult to carry in, but the molding machine is exposed to rain depending on the weather, resulting in functional deterioration. Similarly, very large iron plate rolls molded as long folded sheet roofing materials by a roll-type molding machine must be brought into the construction site, and very large transport trucks are procured along with these carrying-in operations. There is a need.

  Moreover, since the roll forming machine must be placed at the construction site for a certain period of time, different types of folded roofing materials used at other construction sites cannot be manufactured at the same time. Since roll-type molding machines are very large and expensive production facilities, it is difficult to have several such molding machines, and once installed at the construction site, other types of folded-plate roofing materials can be produced. This may cause problems with other roof construction schedules.

  In addition, when a long type folded plate roofing material is manufactured by a roll-type molding machine and then transported to the roof of a building, the weight of one folded plate roofing material is considerably increased. Therefore, in order to carry this long type folded plate roof material to the roof of the building, a heavy machine such as a fairly large crane car is prepared and the folded plate roof material is lifted to the roof of the building. There must be.

  Moreover, since it is necessary to lift such a long type folded-plate roof material to a roof part while maintaining a balance, the work is extremely difficult. Specifically, it is said that after attaching the wires attached to several places in the longitudinal direction of the folded plate roof material using tenbin which is a hanging metal fitting and lifting it up to the construction part of the roof of the building with a crane car, all the tenbins are removed Troublesome work is required.

  In addition, when lifting the above-mentioned long type folded-plate roof material from the bottom of the building to the roof part, several workers are placed on the lower and upper sides of the building in order to lift it safely and securely above the building. Need to be placed.

  However, due to the shortage of personnel who are skilled in the installation work of roofs called so-called roofers (hereinafter referred to as “roofers” as appropriate) at the construction site of recent roofs, long-type folded plates When using roofing materials, it is very difficult to collect the number of roofers according to the construction site.

  Also, in each of the installation parts of the roof and the roof, there is a safety problem that it is dangerous to lift a long type folded plate roof material using a tenbin while placing a number of workers. Has also occurred.

  Moreover, after lifting up all the long type folded-plate roof materials to the installation place of a roof, while aligning and attaching on a main building, the operation | work which fits the edge part of the adjacent folded plates in the width direction is performed. However, since it is a long type, the length of one folded plate roof material is very long, and the operation | work which fits simultaneously in a longitudinal direction is needed. In the case of a long type folded-plate roof material, it is necessary to perform a fitting operation by arranging a number of roofers at appropriate intervals along the longitudinal direction of the roof material.

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

  Furthermore, there is also a problem that occurs after a long period of time has elapsed since the construction of the roof with the long-type folded plate roofing material was finished. Specifically, since the long type folded plate roofing material is made of one very thin 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 top of the building, and is directly affected by all harsh natural environments such as sunlight, wind and rain, and snow. For this reason, the extremely long and narrow folded-plate roofing materials are individually expanded and contracted due to the influence of seasonal weather changes (for example, severe winds and rains caused by the weather under the clear sky and sudden typhoons). To do. This is because the tight frame is broken and scattered by the influence of such thermal stress.

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

  In order to realize such a structure, a long folded plate roofing material is once spread over a part of the roof of the building, and the whole is covered with a heat insulating material, and further a new folded plate roofing material is covered with the heat insulating material. I need to crawl up. In order to realize such a structure, the lower folded plate roof material is attached as the first step, the heat insulating material is attached on the folded plate roof material as the second step, and further on the heat insulating material as the third step. Three steps to attach the folded roof material are required.

  And since the work of the 1st process and the 3rd process and the work of the 2nd process become completely different, the worker who is different from the roofer who attaches the long folded plate roof material on the building has the long side on the lower side. A heat insulating material is attached on the folded plate roof material.

  Therefore, according to the construction schedule, first secure a large number of roof craftsmen who install the folded roof material in charge of the first process, and after this process is completed, there are many roof craftsmen who install the insulation material in charge of the second process. It is necessary to make a very troublesome schedule adjustment to secure a large number of roofers who secure the number of people, and also to secure the number of roofers who are in charge of the third step after the process is completed.

  Furthermore, the number of long folded sheet roofing materials made with a roll molding machine is twice that of the case without a heat insulating material. It is necessary to keep it on the construction site and requires a lot of workers in the first to third steps at the top of the building. Lifting work must be done. For this reason, a considerably longer work schedule is required as compared with the roof installation in the case where the heat insulating material is not installed, and it is difficult to secure human resources for the roofer, and the construction cost is considerably increased.

  In addition, 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 art and a heat insulating material is further laminated and a waterproof resin sheet is stuck thereon, the following points are raised as problems. ing.

  First of all, the work of attaching an iron plate as a base material on the H-shaped steel, which is a supporting steel material, 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 fusing It will be done as a separate construction and will be done by different workers.

  As described above, in the current situation where skilled roofers are in short supply, it is difficult to fully secure personnel during the schedule period in order to form the shortest schedule for the workers in each process. For this reason, the method of attaching the roof inevitably increases the work period and causes a problem.

  Moreover, in order to put the deck material firmly on the base material, for example, the interval between the H-shaped steels must be narrowed according to the deck material, and a certain period of time is required to assemble the base material over the entire roof, The construction period will be extended and the roof installation schedule will be affected.

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

  The object of the present invention can be suitably used for, for example, a safe construction while keeping the cost low in a short construction period when constructing a gently sloped roof such as a warehouse, a factory, a relatively large convenience store or a pharmacy along a main road, etc. An object of the present invention is to provide a method of constructing a gentle slope roof using a fixed-size folded-plate roof material.

In order to solve the above-described problem, a method for constructing a gentle slope roof using the folded-plate roof material according to claim 1 of the present invention,
In the construction method of the gentle slope roof that constructs the gentle slope roof in the building,
Folded plate roof material used for the gentle slope roof, which is a fixed-size folded plate roof plate having a predetermined length separately from the size of the roof of the building to be attached, and the folded plate roof material A large number of folded-plate roof materials made of a resin sheet for folded-plate waterproofing covering the entire surface of the folded-plate roof plate, which is the upper side in a state where it is attached to the building, are provided to cover the gentle-gradient roof in the building. ,
Carry these folded plate roofing materials to the gently sloped roof installation part of the building,
In the gently-gradient roof installation part, the ends in the longitudinal direction of each folded-plate roof material are the ends of the folded-plate roof material on the upstream side in the water flow direction and the ends of the folded-plate roof material on the downstream side in the water flow direction The folded plate roof materials are sequentially attached to the main building so that the overlapping portion of the folded plate roof material is formed on this portion so as to overlap the upper side in the vicinity thereof, and the folded plates constituting the gentle gradient roof The folded sheet roof material overlapping portion waterproof resin sheet having a predetermined width for waterproofing in all the folded plate roof material end overlapping portions between the roof materials, the water flow direction of the folded plate roof material end overlapping portions Overlap so as to cover the lower end of the folded roof material on the upstream side,
By attaching the waterproof resin sheet for waterproofing of the folded plate roofing material to the folded sheet waterproofing resin sheet provided on the upper side surface of each folded plate roofing material, the waterproof gently sloping roof is attached to the building. Yes.

Moreover, in the construction method of the gentle slope roof using the folded-plate roof material of Claim 1, the construction method of the gentle-gradient roof using the folded-plate roof material which concerns on Claim 2 of this invention,
When preparing a large number of folded-plate roofing materials according to claim 1 for assembling the roof to the building, when attaching the roof to the building by the construction method of the gentle slope roof using the folded-plate roofing material,
Also in the fitting part in the width direction of the adjacent folded plate roof material, a predetermined width is provided so as to cover the entire width direction end of the folded plate roof material on the upper side constituting the fitting part. Folding the resin sheet for waterproofing the folding roof material fitting part,
The folded sheet waterproof resin sheet provided on the upper side surface of each folded plate roof material on which the folded half roof material fitted part waterproof resin sheet covered with the fitted part of the folded sheet roof materials adjacent to each other in the width direction is provided. By welding, a low-gradient roof material having a waterproof specification that further achieves waterproofing at the fitting portion in the width direction of the adjacent folded plate roof material is attached to the building.

Moreover, in the construction method of the gentle gradient roof using the folded-plate roof material of Claim 1, the construction method of the gentle-gradient roof using the folded-plate roof material which concerns on Claim 3 of this invention,
It replaces with the folded-plate roof material of Claim 2, The width direction edge parts of adjacent folded-plate roof material are long in the longitudinal direction like the longitudinal direction of the said folded-plate roof material, and an upper surface is a resin sheet for cap waterproofing. A covered roof material fitting cap is fitted and joined, and a predetermined width is provided so as to cover all gaps between the cap and the folded plate roof material on both sides on which the cap is fitted. Overlay the resin sheet for cap fitting waterproofing,
The cap fitting waterproof resin sheet is fused to both the folded waterproof resin sheet on the upper surface of the folded plate roofing material and the cap waterproof resin sheet on the upper surface of the cap. It is characterized in that a waterproof graded-gradient roofing material that further waterproofs the fitting portion is attached to the building.

Moreover, the construction method of the gentle slope roof using the folded-plate roof material which concerns on Claim 4 of this invention is construction of the gentle-gradient roof using the folded-plate roof material in any one of Claim 1 thru | or 3. In the method
Instead of overlapping the lower end of the folded plate roof material on the upstream side in the water flow direction and the vicinity thereof on the upper end portion of the folded plate roof material on the downstream side in the water flow direction and the upper side in the vicinity thereof, the water flow is fixed. In the state where the lower end in the longitudinal direction of the folded roof material on the upstream side in the direction is abutted against the upper end in the longitudinal direction of the folded roof material on the downstream side in the water flow direction,
The connecting portion is covered with a waterproof resin sheet between the folded-plate roof material abutting ends, and the upper side surface of the folded-plate roof material in the water flow direction above and below where the waterproof resin sheet between the folded-plate roof materials abutted ends overlaps. It is characterized in that waterproofing between the folded-plate roof material abutting ends is achieved by fusing to both folded-sheet waterproof resin sheets.

Moreover, the construction method of the gentle slope roof using the folded-plate roof material which concerns on Claim 5 of this invention is construction of the gentle-gradient roof using the folded-plate roof material in any one of Claim 1 thru | or 4. In the method
The lower part of the folded plate roof material is provided with a heat insulating material, respectively.

  According to the present invention, for example, when constructing a gently sloping roof such as a warehouse or a factory, a relatively large convenience store or a pharmacy along a main road, it is excellent in waterproofness by using a specially foldd folding plate roofing material. The construction of a gentle slope roof can be done safely in a short construction period with low cost.

It is a perspective view of the folded-plate roof material used for the construction method of the gentle slope roof which concerns on 1st Embodiment. An end view (FIG. 2 (a)) showing a folded-plate roof material used in the method of constructing a gently-sloped roof according to the first embodiment, and water when the roof is attached to a purlin 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 portion of the folded plate roof material indicated by the solid line on the upstream side in the flow direction and the vicinity thereof overlap the upper end portion of the folded plate roof material indicated by the dotted line on the downstream side in the water flow direction and the vicinity thereof (FIG. 2). (B)). Resin sheet for waterproofing folded-plate roof material overlapping portion shown by a solid line by fitting the roof materials adjacent to each other in the lateral direction in the folded-plate roof material end overlapping portion of the first embodiment shown in FIG. The end view (FIG. 3 (a)) which shows the state fuse | fused and covered the upper part of the folded part roof material edge part overlap part, and 1st provided with the heat insulating material in the folded board roof material of FIG. 3 (a) The roof materials adjacent to each other in the lateral direction of the folded roof material according to the modification of the embodiment are fitted to each other, and the folded roof resin overlapping sheet waterproof resin sheet indicated by the solid line is above the folded roof material edge overlapping portion. It is an end view (Drawing 3 (b)) showing the state where it covered and fused. 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 the vicinity thereof are the upper end portion of the folded plate roofing material on the downstream side in the water flow direction and the vicinity thereof. It is a top view which shows the state which piled up and riveted with the screw. On the both sides of the folded plate roof material in which the upstream side and the downstream side in the water flow direction shown in FIG. 4 are connected to each other in the direction orthogonal to the water flow direction, the folded plate roof is also connected to each other on the upstream side and the downstream side in the water flow direction. It is a top view which shows the state which made the material fit. In the state shown in FIG. 5, the folded-plate roof material according to the first embodiment is so covered as to cover all the overlapping portions of the folded-plate roof material end portions formed by fitting each other in the direction orthogonal to the water flow direction. It is a top view which shows the state fuse | fused and covered the overlapping part waterproofing resin sheet. It is explanatory drawing which shows clearly the construction method of the gentle gradient roof using the folded-plate roof material which concerns on 1st Embodiment. 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, the folded half-roof material fitting portion waterproof resin sheet is covered so as to cover the fitting portion between the folded-plate roof materials adjacent in the width direction. It is a top view which shows the state fuse | bonded by overlapping. The state where the folded sheet roof material fitting portion waterproof resin sheet in FIG. 13 is fused to the folded sheet roof material along the direction orthogonal to the water flow direction (AA cross-sectional view in FIG. 13) is the main house ( A sectional view (FIG. 14 (a)) shown together with a dotted line and a two-dot chain line) and a folded sheet roofing material overlapping part waterproofing resin sheet are further fused on the folded sheet roofing material overlapping part waterproofing resin sheet. FIG. 14B is a cross-sectional view (FIG. 14B) showing a cross-sectional view (for example, a BB cross-sectional view in FIG. 13) cut along the direction perpendicular to the water flow direction along with the purlin (shown by a combination of a dotted line and a two-dot chain line). )). 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 roof material which concerns on this invention. It is an end elevation which shows the further modification of the folded-plate roof material which concerns on this invention different from FIG. The folded plate roofing material according to a further modification of the present invention shown in FIG. 17 is brought into contact with the end in the water flow direction while fitting the other outer goby to one inner goby in the direction orthogonal to the water flow direction. FIG. 5 is an end view showing a state in which a resin sheet for waterproofing a folded-plate roof material end contact portion is fused to the upper side of the end. After the folded-plate roof material shown in FIG. 18 is attached to the main building, the folded-sheet roof material fitting portion waterproof resin sheet according to the second embodiment except for the overlapping portion of the folded-plate roof material according to the first embodiment. It is an end elevation which shows the state which melt | fused only. It is an end elevation which shows the state which used the folded-plate roof material provided with the heat insulating material in this lower surface in addition to the structure of the folding half heat insulating material shown in FIG.

  Hereinafter, an embodiment of a method for constructing a gentle slope roof using a folded plate roof material according to the present invention will be described based on the drawings. The folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on 1st Embodiment first, and the construction method of the gentle gradient roof using this are demonstrated.

  FIG. 1 is a perspective view of a folded plate roofing material used in the method of constructing a gentle slope roof according to the first embodiment. FIG. 2 is an end view (FIG. 2A) showing a folded-plate roof material used in the method of constructing the gentle slope roof according to the first embodiment, and a purlin showing the roof by a combination of a two-dot chain line and a dotted line. 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 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 the vicinity thereof. FIG. 2 is an end view (FIG. 2B). Moreover, FIG. 3 fits the roof material adjacent in the horizontal direction in the folded-plate roof material edge part overlap part of 1st Embodiment shown in FIG.2 (b), Furthermore, the folded-plate roof material shown as a continuous line An end view (FIG. 3 (a)) showing a state where a resin sheet for waterproofing of the overlapping portion is placed on the upper side of the end overlapping portion of the folded plate roof material, and a heat insulating material on the folded plate roof material of FIG. 3 (a) The roof material adjacent to the transverse direction of the folded plate roof material according to the modified example of the first embodiment provided with the above is fitted, and the folded sheet roof material overlapping portion waterproof resin sheet indicated by a solid line is folded into the folded plate roof material. It is an end elevation (Drawing 3 (b)) which shows the state where it covered and fused on the upper part of an end overlap part. Moreover, FIG. 4 is the first embodiment shown in FIGS. 1 and 2, and shows the lower end of the folded plate roof material on the upstream side in the water flow direction and the vicinity thereof on the folded plate roof material on the downstream side in the water flow direction. It is a top view which shows the state which overlapped on the upper end part and its vicinity, and was riveted with the screw. FIG. 5 shows the folded roof material connecting the upstream and downstream sides in the water flow direction shown in FIG. 4 on both sides in the direction perpendicular to the water flow direction, and also on the upstream and downstream sides in the water flow direction. It is a top view which shows the state which made the mutually connected folded-plate roof material fit. Moreover, FIG. 6 is the first embodiment so as to cover all the overlapping portions of the folded-plate roof material end portions formed by fitting each other in the direction orthogonal to the water flow direction in the state shown in FIG. It is a top view which shows the state which covered and covered the folded sheet roof material overlap part waterproofing resin sheet which concerns on this.

  1 to 6 show dimensions and shapes included in the present invention, which are different from the actual dimensions and shapes of each component of the folded roof material 10, in order to facilitate understanding of the description of the present invention. Is shown. In particular, the thickness of the folded sheet roofing material waterproof resin sheet, which is the main part of the present invention, is drawn thicker.

  A folded plate roof material (hereinafter simply referred to as “folded plate roof material”) 10 used in the method of constructing a gentle slope roof according to the first embodiment is, for example, a warehouse, a factory, a relatively large convenience store or pharmacy along a main road. Folded plate roofing material used for low-gradient roofs. And the folded-plate roofing material 10 attaches the folded-plate roofing material 10 and the folded-plate roofing material 10 which have the predetermined length predetermined apart from the magnitude | size of the roof of the building which is attachment object, and the folded-plate roofing material 10 to a building. The folded sheet waterproofing resin sheet 120 is provided to cover the entire surface of the folded sheet roof board 110 that is the upper side surface in the above state. The folded sheet waterproofing resin sheet 120 has a length and a width that exactly overlaps the upper surface of the folded sheet roof board 110.

  The folded sheet waterproofing resin sheet 120 is a resin having the same width as the material of the folded sheet waterproofing resin sheet 120 on the steel sheet serving as the material of the folded half roofing board 110 when the folded sheet roofing material 10 is manufactured by a roll forming machine. Forming the folded sheet roofing material 10 in which the two layers, which are the folded sheet roofing material 10 on the lower side and the resin sheet 120 for folded sheet waterproofing, overlap with each other, are formed by using a roll forming machine with the sheets stacked. (See FIG. 1 and FIG. 2 (a)).

  In addition, as shown in FIG. 4, the length of the folded-plate roof material 10 is each folded-plate roof material when connecting and attaching the folded-plate roof material along the water flow direction to the main building which is a gently-gradient roof installation part. The lower end portion 11 and the vicinity thereof of the folded plate roofing material 10 on the upstream side in the water flow direction at the longitudinal end portion thereof overlap the upper end portion 12 of the folded plate roofing material 10 on the downstream side in the water flow direction and the upper side thereof. It is the length by which the folded-plate roof material edge part overlap part 13 is formed in a part. And as shown in the figure, the folded plate roofing material is firmly connected to each other by riveting using a large number of screws 19 at the overlapping portion of the folded roofing material.

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

  One end in the width direction of the folded roof material 10 according to the first embodiment is formed as a cap portion 130 by integrating a cap (see FIGS. 1 to 3A). Then, when the folded plate roofing material is arranged in a direction orthogonal to the water flow direction, as shown in FIG. 3A, one side in the width direction of the folded plate roofing material 10 on the right side in the drawing forming the cap portion 130. The end portion covers the upper side of the cap inner side 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, the water flow direction downstream of the folded-plate roof material edge part overlap part 13 which is the part which the adjacent folded-plate roof material in the water flow direction of the folded-plate roof material 10 connected to the lower side of Fig.3 (a). The folded roof material is shown in FIG. Further, on the upper side of FIG. 3 (a), a folded plate roof material end overlapping portion 13 (FIG. 4 to FIG. 4) is a connected portion of adjacent folded plate roof materials 10 in the water flow direction of the folded plate roof material described later. 6), the folded sheet roofing material overlapping portion waterproofing resin sheet 200 fused to the folded sheet waterproofing resin sheet 120 of the lower folded sheet roofing material is shown.

  In this embodiment, the folded-plate roof board | substrate 110 of the folded-plate roof material 10 is created as a regular folded-plate roof material about 10 m in length and about 30 cm to 50 cm in width, for example. Further, the folded sheet waterproofing resin sheet 120 is roll-formed so as to cover not only the mountain folded portion 111 and the valley folded portion 112 of the folded plate roof board 110 but also the upper side surface of the cap portion 130. In addition, the thickness of the Galvalume steel plate (registered trademark) forming the folded roof plate 110 is about 0.5 mm to 1 mm as an example, and the vinyl chloride sheet forming the folded 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 function can be exhibited.

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

  The folded sheet roofing material overlapping portion waterproofing resin sheet 200 is a characteristic component in the present invention. When each folded sheet roofing material 10 is attached to the main building 90 in order or after being attached, a gentle slope roof is attached. It has a predetermined width sufficient for waterproofing in all the folded-plate roof material edge part overlapping parts 13 of each folded-plate roof material to comprise. And as shown in FIG.5 and FIG.6, it piles up so that the lower end part 11 of the folded-plate roof material used as the water flow direction upstream of the folded-plate roof material edge part overlap part 13 may be covered, and a folded-plate roof material overlap part 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 is overlapped, a waterproof gentle slope roof can be attached to the building.

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

  Then, the construction method of the gentle gradient roof using the folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on 1st Embodiment is demonstrated. FIG. 7 is an explanatory view showing the method of constructing a gentle slope roof using the folded plate roof material according to the first embodiment in an easy-to-understand manner. Moreover, FIG. 8 is explanatory drawing which shows an example of the construction procedure following FIG. Moreover, FIG. 9 is explanatory drawing which shows an example of the construction procedure following FIG. Moreover, FIG. 10 is explanatory drawing which shows an example of the construction procedure following FIG. Moreover, FIG. 11 is explanatory drawing which shows an example of the construction procedure following FIG. Moreover, FIG. 12 is explanatory drawing which shows an example of the construction procedure following FIG. 11, and is a figure which shows the state which completed implementation of the construction method of the gentle slope roof which concerns on 1st Embodiment.

  In constructing a gently-sloped roof using the folded-plate roof material according to the first embodiment, first, a large number of the above-described fixed-size folded-plate roof material 10 are manufactured in a factory apart from the roof construction site. Keep 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 a warehouse separate from the factory.

  In other words, according to the present invention, an arbitrary number of folded plate roofing materials 10 can be manufactured and stored in advance. Therefore, by making slightly more folded plate roofing materials 10 having the same dimensions or different specifications of folded plate roofing materials 10 having different dimensions, when a new roof construction order is suddenly entered, this can be quickly achieved. Can respond.

  Then, these folded-plate roof materials 10 are conveyed to the construction site of the building which should install a roof. The folded plate roof material 10 used in the construction method of the gently-sloped roof according to the present embodiment is a fixed-length roof material having a length of about 12 m even if it is long from 5 m on average, so it is attached to the building. Even if the roof size is large, it can be handled by transporting it in small trucks several times, and it is not necessary to entrust a special large truck to a transport company and perform large-scale transport work.

  Next, an appropriate number of folded-plate roof materials 10 carried to the construction site are collected and moved to the roof installation location at the top of the building using a crane truck or the like. Even in this case, as described in the conventional example, it is not necessary to perform a lifting work using a hanging metal object (tenbin) while arranging a large number of workers on the upper and lower parts of the building. Therefore, it is easy to secure workers and the lifting work can be performed safely. Moreover, it is not necessary to use a large crane vehicle (heavy machine) as in the case of fishing a long folded plate roof material.

  Next, the folded roof material 10 is attached to the main building 90 of the building. This procedure will be described below. If the main building 90 of the building is provided at intervals of 2 m perpendicular to the water flow direction, for example, as shown in FIG. 7, the first folded roof material 10 (1- 1) Install. At this time, the purlin 90 is attached using an appropriate fixing tool. Next, the second folded plate roofing material 10 (1-2) is attached to the main building 90 adjacent to the attached folded plate roofing material in the lateral direction (extending direction under the eaves, hereinafter simply referred to as “lateral direction”). Along with the other side in the width direction of the second folded-plate roof material 10 (1-2), the cap inner side 140 on one side (right side in the figure) of the first folded-plate roof material 10 (1-1). The cap part 130 on the side (left side in the figure) is firmly covered (see the state shown in FIG. 3A).

  The cap part 130 of the folded-plate roof material 10 attached after that to the cap inner part 140 of the folded-plate roof material 10 already attached while attaching the folded-plate roof material 10 to the main building 90 in the horizontal direction sequentially in such a procedure. Put on and fit firmly. In this way, one row of folded roofing materials 10 (1-1) to 10 (1-n) is attached in the lateral direction (perpendicular to the water flow) from one end of the eaves to the other end of the main building 90 on the lowermost eaves ( (See FIG. 8).

  Next, the folded roof material 10 in the second row from the bottom in the water flow direction is disposed above the folded roof material 10 (1-1) to 10 (1-n) in the first row in the horizontal direction in the same manner 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 the vicinity thereof (the solid line portion in FIG. 2B) are downstream in the water flow direction. The folded plate roof material end overlapping portion 13 overlaps the upper side of the end of the folded plate roof material on the side and the vicinity thereof (the portion of the region sandwiched between the dotted line in FIG. 2B and the solid line on the upper side). Connect both to form. After the folded plate roof material end overlapping portion 13 is formed by this work, a large number of screws 19 are driven into this portion, and the folded plate roof materials are riveted together (see FIGS. 4 and 5).

  In addition, the upper dotted line connected in the lateral direction of the connecting portion of the folded plate roof material connected in the water flow direction in FIG. 9 is the upper end of the folded plate roof material on the lower side in the water flow direction, and is the folding on the upper side in the water flow direction. The upper end part 12 which the lower end vicinity of the board | plate roof material covered on the upper side is shown. On the other hand, the lower solid line connected to the lateral direction of each folded-plate roof material end overlapping portion in FIG. 9 is the lower end of the folded-plate roof material on the upper side of the water flow direction and the lower side of the folded-plate roof material on the lower side of the water flow direction. The lower end part 11 which covered the upper side vicinity is shown.

  Next, in the present embodiment, the third row of folded-plate roof materials 10 in the same manner as the procedure for attaching the second row of folded-plate roof materials to the main building of the building with respect to the above-described first row of folded-plate roof materials. (3-1) to 10 (3-n) are attached (see FIG. 10). Such a work is repeated and the fixed-size folded-plate roofing material 10 is attached to the whole part of the main building 90 at the top of the building.

  Next, a resin sheet 200 for waterproofing the folded plate roof material overlapping portion is prepared. In addition, about the resin sheet 200 for folded-plate roof material overlap part waterproofing, while showing this as the state after welding to a folded-plate roof material, it is shown by the upper continuous line in FIG. 3 (a), and the left-upward hatching in FIG. It has shown as a dot area | region extended in the direction orthogonal to the water flow direction of the folded-plate roof material in FIG. 11 and FIG.

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

  In addition, about the length of the resin sheet 200 for folded-plate roof material overlap part waterproofing in the case of this embodiment, it has reached from the one edge part orthogonal to the water flow direction of the folded-plate roof material 10 to the other edge part. However, in practice, the folded sheet roof material overlapping portion waterproofing resin sheet 200 having an appropriate length may be used in accordance with the scale of the roof on which the building is to be constructed.

  Then, the folded sheet roofing material overlapping portion waterproof resin sheet 200 is stacked so as to cover the lower end portion 11 of the folded sheet roofing material 10 on the upstream side in the water flow direction of the folded sheet roofing material overlapping part 13. By fusing the overlapping portion waterproofing resin sheet 200 to the folded plate waterproofing resin sheet 120 provided on the upper side surface of each folded plate roofing material with which it overlaps with a thermal welding device (not shown), a waterproof gently sloping roof is obtained. Install in the building.

  In this way, the water-flow-direction downstream-side fusion waterproof part 220 is formed in all the connection parts between the folded-plate roof materials adjacent in the longitudinal direction (see FIGS. 6 and 12). As a result, despite the use of the standard folded-plate roofing material 10, the water flow direction is completely the same as the long roofing material made with a roll molding machine at the roof construction site. As a structure that achieves waterproofing, it is possible to complete the work of spreading the roof of the building.

  In addition, the operation | work which spreads the folding plate roof material 10 of the fixed scale mentioned above to the main building 90 of a building, and the folding plate with which the folded sheet roof material overlapping part waterproof resin sheet 200 is equipped on the upper surface of each folded plate roof material 10 with which this overlaps. The work of forming the fusion waterproof part 220 on the downstream side in the water flow direction by fusing to the waterproof resin sheet 120 may be performed by the same roofer, or fatigue that is important for the schedule adjustment and safety of the roofer. Another roofer may take care of the degree.

  Moreover, after attaching all the fixed-size folded-plate roofing materials 10 to the main building 90 over the horizontal direction 1 row in the position which becomes a downstream with respect to a water flow direction, in the position which becomes the upstream which adjoins this A fixed-size folded-plate roofing material 10 is attached to the main building 90 over one row in the transverse direction, and then the folded-sheet roofing material overlapping portion waterproof resin sheet 200 is upstream of the folded-plate roofing material edge overlapping portion in the water flow direction. The folded sheet roofing resin material 120 is provided so as to cover the lower end portion 11 of the folded sheet roofing material on the side, and the folded sheet roofing material overlapping portion waterproofing resin sheet 200 is provided on the upper side surface of each folded sheet roofing material 10 on which it is overlapped. As a result of the welding, the operation of sequentially forming the fusion-bonded waterproof portion 220 on the downstream side in the water flow direction may be repeated at the connection portion between the folded-plate roof materials.

  Subsequently, the operation of the above-described first embodiment will be described. By constructing a roof using a specially sized fixed-size folded-plate roofing material 10 according to the first embodiment, the long folded-plate roofing material while solving the problems described in the column of problems to be solved As with the case, it is possible to spread a gently sloping roof that ensures waterproofness on the building.

  More specifically, instead of installing a roll forming machine at the roof construction site to make a long folded plate roof material as in the past, a regular folded plate with a roll forming machine in the factory away from the site. Many roofing materials 10 can be made and stored in advance. For this reason, the folded roof material 10 is manufactured in a factory and transported to a construction site without using a large truck because the folded roof material 10 has a short length unlike the long type. be able to.

  In addition, since it is possible to make a fixed-size folded plate roofing material 10 in advance with a roll forming machine in the factory, a roll-type forming machine or a very large iron plate roll formed thereby is 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 a work that is problematic in terms of safety due to a large-scale lifting of a long type folded plate roof material to a place where the roof is installed by a suspension metal fitting (tenbin).

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

  In addition, it is possible to prevent a problem such as a long frame folded roof material, which causes a long-term change after construction of the roof and breaks and scatters the tight frame and the like.

  In addition, since a specially-designed folded-plate roofing material 10 is used, when attaching the folded-plate roofing material 10 to the main building 90, a long folded-plate roofing material is used as a main building with large-scale work for each one. Unlike the conventional method of mounting, the construction work can be given a degree of freedom in time and allowance.

  Then, the folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on the modification of 1st Embodiment, and the construction method of the gentle gradient roof using this are demonstrated. FIG.3 (b) is an end elevation which shows the state which made the folded-plate roof material which concerns on the modification of 1st Embodiment fit in 2 sheets horizontal direction (direction orthogonal to the water flow direction of a folded-plate roof material). It is.

  The folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on this embodiment is a building plate roof material 10 in addition to the folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on 1st Embodiment. The heat insulating material 150 is provided in the folded-plate roof board used as a lower surface in the state attached to.

  In the case of this embodiment, the material of the heat insulating material 150 is a foam material generally used as a heat insulating material for a roof. In this case, as an example of the dimensions of the foam material, if 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, An appropriate thickness is selected in consideration of the heat insulation effect.

  The heat insulating material 150 is formed of a thick plate-like body having a predetermined uneven shape as viewed from the end surface, and is one folded plate roof material (the folded plate roof on the left side of FIG. 3B) as in the first embodiment. In a state where the cap portion 130 of the other folded plate roof material (the right folded plate roof material in FIG. 3B) adjacent to the width direction of the folded plate roof material is covered on the cap inner side portion 140 of the material), Here, a fixing metal fitting not described in detail is fitted into the concavo-convex 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, so that it 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 roof material 10 immediately before the folded-plate roof material 10 is attached to the main building 90, and the folded-plate roof material 10 may be used before the folded-plate roof material 10 is lifted or at a factory. May be attached when made with a roll forming machine.

  And in performing construction of a gentle slope roof using the folded-plate roof material 10 provided with the heat insulating material 150 which concerns on the modification of this 1st Embodiment, fundamentally shown in FIG. 7 thru | or FIG. This is performed in the same manner as the roof construction method in the first embodiment. In this embodiment, when the upper end surface and the lower end surface in the longitudinal direction of the heat insulating material 150 are flush with the upper end portion and the lower end portion in the water flow direction of the folded plate roof material 10, the folded plate roof material is moved in the water flow direction. Unlike the first embodiment, the lower end portion of the folded plate roof material on the upper side in the water flow direction is brought into contact with the upper end portion of the folded plate roof 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 in the longitudinal direction of the heat insulating material 150 by a certain amount, the lower side 11 in the water flow direction is the same as in the first embodiment. As shown in FIG. 4 and FIG. 5, the upper end portion 12 of the folded plate roof material 10 and the vicinity thereof are covered with the lower end portion 11 of the folded plate roof material on the upper side of the water flow direction and the vicinity thereof, and a number of screws 19 are used. Fix them by riveting. In this case, the upper end portion 12 of the folded plate roof material 10 on the lower side in the water flow direction and the vicinity thereof are specified by a two-dot chain line on the lower side of FIG. The

  Below, the effect | action of the folded-plate roof material 10 provided with the heat insulating material which concerns on the modification of 1st Embodiment is demonstrated. Basically, the same function as the folded plate roofing material 10 used in the method of constructing the gentle gradient roof according to the first embodiment is exhibited, but in addition to this, the modified example has the following special effects. It becomes possible to demonstrate.

  Specifically, when the roof provided with the heat insulating material 150 as in the modified example of the first embodiment is used, if a conventional long-type folded plate roof material is used, a double pack structure must be used. Although the construction period was extremely long, the folded-plate roof material 10 was attached to the main building 90 by using the fixed-size folded-plate roof material 10 provided with the folded sheet waterproofing resin sheet 120 according to this modification. The roof construction can be completed with only one row.

  In other words, there is no need to complete the roof through a three-step process of rolling the roof once, placing a heat insulating material on it, and then rolling the roof on it, as in the conventional double pack roof structure. There is no need for lifting work with danger due to a large scale that lifts a long roof with a tenbin, such as schedule adjustment of a skilled roofer explained in the problem of the conventional example, delay of construction period, cost increase, etc. It is possible to solve all the problems such as ensuring the safety of the roofer and other related workers regarding the difficult schedule adjustment of the worker and the construction of the roof.

  Then, the folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on 2nd Embodiment, and the construction method of the gentle gradient roof using this are demonstrated. In the configuration shown in FIG. 6, in order to embody the second embodiment, the folded half-roof material fitting portion waterproofs so as to cover the fitting portion between the folded-plate roof materials adjacent in the width direction. It is a top view which shows the state which laminated | stacked and fused the resin sheet for operation. 14A is a cross-sectional view of the folded sheet roofing material fitting portion waterproofing resin sheet in FIG. 13 cut along a direction perpendicular to the water flow direction, where the waterproof resin sheet is fused to the folded sheet roofing material. It is AA sectional drawing in FIG. Moreover, FIG.14 (b) shows along the direction orthogonal to a water flow direction the part by which the folded sheet roof material fitting part waterproof resin sheet was further fuse | fused on the folded sheet roof material overlapping part waterproof resin sheet. It is sectional drawing cut | disconnected by (For example, BB sectional drawing in FIG. 13). Moreover, FIG. 15 is explanatory drawing which shows an example of the construction procedure following FIG. 12, and is a figure which shows the state which completed implementation of the construction method of the gentle slope roof which concerns on 2nd Embodiment.

  The basic structure of the folded-plate roof material 10 used in the method of constructing the gentle gradient roof according to this embodiment is the same as that of the folded-plate roof material 10 used in the method of constructing the gentle gradient roof according to the first embodiment. is there.

  However, as a unique configuration of the second embodiment, in addition to preparing the folded sheet roof material waterproof resin sheet 200 as in the case of the first embodiment, the adjacent folded sheet roof material Also in the fitting portion in the width direction of 10, the folded half roof material fitting with a predetermined width is applied so as to cover the entire widthwise end of the folded plate roof material 10 covering the upper side constituting the fitting portion. This is characterized in that a waterproof resin sheet 300 is prepared separately.

  The folded half-roof roof material fitting portion waterproofing resin sheet 300 is provided on the upper side surface of each folded-plate roof material 10 that covers and overlaps the fitting portions of the folded-plate roof materials adjacent in the width direction as described above. By fusing to the sheet waterproof resin sheet 120, it plays the role of enabling the installation of waterproof graded-gradient roofing material that is further waterproofed at the fitting part in the width direction of the adjacent folded-plate roofing material 10 to the building. Yes.

  Subsequently, the construction method of the roof using the folded-plate roof material 10 of 2nd Embodiment is demonstrated. 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. 13 to 15, as described above, 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 roof material 10. (Modify). In particular, the thickness of the resin sheet for waterproofing the folded-plate roof material overlapping portion and the resin sheet for waterproofing the folded-plate roof material fitting portion, which is a main part of the present modification, is drawn thick.

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

  Then, the folded 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 folded half-roof material fitting portion waterproof resin sheet 300 overlaps. Thus, the lateral fusion waterproof portion 260 is formed (see FIG. 13). As a result, a waterproof gently-graded roofing material that is further waterproofed at the fitting part in the width direction of the adjacent folded-plate roofing material is attached to the building.

  In FIG. 13B, the folded 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 an easy-to-understand manner using FIG. 12 showing the entire roof. In the same figure, the folded-plate roof material edge part overlapping part 13 (refer FIG. 13) connected in the water flow direction of each adjacent folded-plate roof material 10 is one direction of a building in the direction orthogonal to this water flow direction. It runs from the eaves to the other eaves.

  That is, in this state, the folded sheet roof material overlapping portion waterproof resin sheet 200 is covered from the top by the length, and the folded sheet roof in the water flow direction is overlapped on the upper surface of the covered folded sheet roof material. The folded roof material waterproof sheet 120 of the material 10 is fused using a welding device (not shown). In addition, the process so far is the same as the attachment procedure of the gentle slope roof which concerns on 1st Embodiment mentioned above.

  In the second embodiment, as shown in FIG. 13 to FIG. 15, in addition to this, it is already fixed to the purlin 90, and in the first embodiment, it is riveted to each other by screws 19 in the longitudinal direction and connected to each other. The length that extends from the eaves of the gently-sloped roof to the bottom of the eaves so as to cover the fitting part of the folded plate roofs formed at the width direction connecting part of the adjacent folded plate roofs at the same time. The foldable half roof material fitting part waterproofing resin sheet 300 is covered. Then, the side-welded waterproof portion 260 is formed by welding the folded half-roof material fitting portion waterproofing resin sheet 300 to the folded plate waterproofing resin sheet 120 provided on the upper side surface of each folded-plate roof material 10 on which it is overlapped. (See FIG. 13).

  This operation is performed on the fitting portions of all the folded-plate roof materials formed between the adjacent elongated folded-plate roof materials (a predetermined distance from each other in the width direction from the eaves to the eaves of the building in FIG. 15). (Refer to the resin sheet 300 for waterproofing a plurality of dotted half-roof roof material fitting portions extending apart.) As a result, a completely waterproof structure can be provided for this part, and a further waterproof function can be enhanced, and a roof that is remarkably superior in waterproofness can be constructed.

  It should be noted that the folded sheet roof material fitting resin waterproof resin sheet 300 of the folded plate roof material of the second embodiment is welded to the folded sheet waterproof resin sheet 120 provided on the upper side surface of each folded plate roof material 10 that overlaps the folded sheet roof material 10. About the operation | work to fuse | fuse by (not shown), the folded sheet | seat roof material overlap part waterproofing resin sheet 200 used for the construction method of the gentle slope roof which concerns on 1st Embodiment mentioned above is used for the folded sheet | seat roof material edge part overlap part. 13 are provided so as to cover the lower end portion 11 of the folded-sheet roofing material 10 on the upstream side in the water flow direction, and the folded-sheet roofing material overlapping portion waterproof resin sheet 200 is provided on the upper side surface of each folded-plate roofing material 10 on which it overlaps. It is efficient in terms of construction to be performed in accordance with the operation of fusing the folded sheet waterproofing resin sheet 120 with a welding device (not shown).

  Then, the construction method of the gentle gradient roof using the cap attachment type folded-plate roof material 50 which is the further modification of the above-mentioned embodiment is demonstrated. FIG. 16 is an end view showing a modified example of the folded plate roof material according to the present invention.

  The folded-plate roof material 50 used for the construction method of the gentle slope roof which concerns on this cap attachment type embodiment is the folded-plate roof material 10 used for the construction method of the gentle gradient roof which concerns on the modification of 1st and 1st Embodiment. The basic configuration is the same. As a difference, in the case of the folded roof material 10 according to the first embodiment and the modification thereof, the cap portion 130 is fitted with the one end side in the width direction covering the cap inner portion 140 and the other end side thereof covering this. However, in the case of this cap mounting type, cap fitting halves 510 and 520 that are symmetrical to each other with respect to the center in the width direction of the folded plate roof material 50 are provided.

  Further, in this cap-mounted type embodiment, the waterproof resin sheet 530 made of a vinyl chloride sheet matches the end of the folded half roof plate 500 of the folded plate roofing material 50 in the longitudinal direction, as in the above-described embodiment. In addition, with respect to the width direction, as shown in FIG. 16, as an example, the end portions 531 and 532 extend to the inner end portions of the cap fitting gores 510 and 520. And the cap 550 which fits the cap fitting gouge 510,520 over the whole longitudinal direction of the folded-plate roof material 50 is used.

  The cap 550 is provided with two goby engaging portions 551 and 552 so as to face each other, and the two goze engaging portions 551 and 552 are fitted in the downward bent portions of the cap fitting gores 510 and 520, respectively. As a result, the cap 550 firmly covers the cap-fitting gobs 510 and 520 of the adjacent folded-plate roof material 50 facing each other, and the waterproofing of this portion is reliably achieved.

  Moreover, in this embodiment, the cap insertion part waterproofing resin sheet 600 is prepared specially. The cap fitting waterproof resin sheet 600 is for covering all the gaps between the cap 550 and the folded roof material on both sides into which the cap 550 is fitted.

  Then, all gaps between the cap portion 130 and the folded-plate roof material 50 on both sides into 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 overlapped. In the same manner as in each of the above-described embodiments, the folded sheet waterproofing resin sheet 530 provided on the upper side surface 50 and the cap waterproofing resin sheet (not shown) provided on the upper side surface of the cap 550 are fused to each other by a welding device (not shown). By doing so, it plays the role of enabling the installation of a waterproof graded slope roof material that further waterproofs the cap fitting part.

  Next, a procedure for attaching the folded-plate roof material 50 to a building in the case of this cap-attached embodiment will be described. First, two folded-plate roof materials 50 are arranged in the horizontal direction and fixed to the main building 90, and the width of one of the folded-plate roof materials 50 in the width direction at one end and the width of the other folded-plate roof material 50 is fixed. The cap fitting gouge 520 on the other end side in the direction is separated by a slight gap, and both the inverted U-shaped caps 550 having the same length as that of the regular folded plate roof material are provided from above. The cap fitting gouges 510 and 520 are tightly fitted. Thus, waterproofing between the folded-plate roof material 50 and the cap 550 is ensured by the same work procedure as the folded-plate roof material used for the construction method of the gentle slope roof which concerns on 2nd Embodiment mentioned above. Can do.

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

  Along with this, a problem that has always occurred when using long folded plate roofing materials as in the past, that is, installing a roll molding machine at the construction site, or roofing long folded plate roofing materials made on the spot It is possible to solve the problem of having to continue to use heavy machinery such as a large crane truck that is suspended on the roof during construction of the roof.

  In addition, since there is no need to lift using a hanging metal fitting (tenbin), it is not necessary to collect a large number of workers according to the schedule. Further, since it is not necessary to carry out the lifting work of the long folded plate roof material accompanied by such danger, it is preferable in terms of safety. In addition, since it is not necessary for a large number of roofers to gather at once to construct a roof like a long folded roof material on a building, it is very easy to secure a roofer.

  In addition, in the case of a double pack structure folded plate roof structure provided with a heat insulating material, it is not necessary to use a conventional long folded plate roof material. You can run the roof at 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 using a long folded roof material. As a result, the construction cost can be greatly reduced.

  Also, H-shaped steel, which is a supporting steel material, like a roof structure in which a deck material made of an iron plate or the like as a base material is provided on an H-shaped steel, and further a heat-insulating material is laminated and a waterproof resin sheet is pasted thereon. There is no need for different roofers to perform the work of attaching an iron plate as a base material on top of the sheet, the work of stacking a heat insulating material thereon, and the work of attaching a waterproof sheet to the upper surface of the heat insulating material by fusing. A skilled roofer can work on the roof of a building in a short period of time.

  In particular, when folded plate roofing material is used, it has sufficient strength and rigidity, so the span of the main building can be taken large, and the H-section steel can be separated at small intervals as in the structure described above. Therefore, it is possible to reduce costs and shorten the construction period.

  Moreover, since this invention is applicable also to a cap-type folded-plate roof material, the gentle gradient roof excellent in waterproofness can be constructed, using a fixed-size folded-plate roof material.

  In addition, there is no concern that deck materials such as iron plates will fall when a large-scale earthquake that is of 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 drawings corresponding thereto, and may be various as long as the effects of the present invention can be exhibited. It goes without saying that other modified examples also belong to the present invention.

  Therefore, when connecting the folded-plate roof materials to each other in the water flow direction, the water flow is not necessarily in the lower end in the longitudinal direction of the folded-plate roof material on the upper side of the water flow direction and in the vicinity thereof as in the first embodiment or the second embodiment. It is not necessary to overlap so as to cover the upper end in the longitudinal direction of the folded plate roof material on the lower side in the direction and the vicinity thereof.

  That is, the lower end of the folded roof material on the upstream side in the water flow direction and the vicinity thereof are overlapped with the upper end of the folded roof material on the downstream side in the water flow direction and the upper side in the vicinity thereof, and the both are fixed. In the configuration in which the lower end in the longitudinal direction of the folded-plate roof material on the upstream side is connected to the upper end in the longitudinal direction of the folded-plate roof material on the downstream side in the water flow direction, the folded folded roof roof material is waterproofed. Instead of the resin sheet for use, the folded plate roofing material butting portion waterproof resin sheet is overlapped on this butting portion and fused with the resin portion of the lower folded plate roofing material so that this butting portion is waterproofed Anyway.

  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-butt-type folded-plate roof material 70. In addition, the folded-plate roof material 70 has the structure provided with the resin sheet 702 for folded-plate waterproofing on the whole upper surface of the folded-plate roof board 701 in the attachment state to the main building 90 of a roof similarly to the above-mentioned embodiment. Yes. A folded sheet roof material end contact portion waterproof resin sheet 740 (see FIG. 18) is fused to the end portion of the folded roof material 70 in the water flow direction in the same manner as in the above embodiment. FIG. 18 shows the flow direction of the folded plate roofing material 70 according to a further modification of the present invention shown in FIG. 17 while fitting one outer goby 720 to one inner goby 710 in a direction perpendicular to the water flow direction. It is an end view which shows the state which made the edge part contact | abut to, and the resin sheet 740 for folding-plate roof material edge part contact part waterproofing was fuse | bonded to the upper side of this edge part. Further, FIG. 19 shows a folded plate roofing material fitting portion waterproofing other than the folded plate roofing material end overlapping portion according to the first embodiment after the folded plate roofing material 70 shown in FIG. It is an end view which shows the state which melt | fused only the resin sheet 750. FIG. FIG. 20 is an end view showing a state in which a folded plate roofing material 70 having a heat insulating material 760 on its lower surface is used instead of the folded half heat insulating material shown in FIG.

  As is apparent from the configurations shown in these drawings, the lower end portion and the lower folded plate of the folded roof material having the outer goby on one side in the width direction and the inner goze on the other side in the water flow direction. You may apply this invention to the construction method of the gentle slope roof using the folded-plate roof material of the type which abuts the upper end part of a roof material. Also in this case, the merit peculiar to this invention at the time of using the heat insulating material mentioned above can be shared.

  Moreover, in embodiment mentioned above, about the form which winds a roof to the building shown in FIG. 7 thru | or FIG. 15, three folded-plate roof materials are connected in series with a water flow direction, respectively, and a long folded-plate roof material and However, in view of the gist of the present invention, for example, an extremely long folded plate roof made of a roll molding machine having a length of about 50 mm to 100 mm by connecting 10 or 20 such folded plate roof materials in series. Needless to say, it can be used for the roof of a building instead of wood. In other words, according to the present invention, it can be noted that even when a gentle slope roof is spread over a very large building, it is possible to cope with solving the conventional problems.

10 Folded plate roofing material 10 (1-1) -10 (1-n) Folded plate roofing material 10 (2-1) -10 (2-n) 2nd row from downstream of water flow Folded plate roof material 10 (3-1) to 10 (3-n) Folded plate roof material in the third row from the downstream of the water flow 12 Upper end portion 11 Lower end portion 13 Folded plate roof material end overlap portion 19 Screw 50, 70 Folded plate roof material 90 Purlin 110 Folded plate roof plate 111 Mountain folded portion 112 Valley folded portion 120 Folded plate waterproof resin sheet 130 Cap portion 140 Cap inner portion 150 Heat insulating material 200 Folded plate roof material overlapping portion waterproof resin sheet 220 Water flow Downward direction fusion-bonded waterproof portion 260 Lateral-bonded waterproof portion 300 Folded roof material fitting portion waterproof resin sheet 500 Folded plate roof material 531, 532 End portion 510,520 Cap fitting goby 530 Waterproof resin sheet 550 Cap 51,552 Seam engaging portion 600 Cap fitting waterproofing resin sheet 701 Folded roof sheet 702 Folded waterproof resin sheet 710 Inner seam 720 Outer seam 740 Folded roof material edge contact part waterproofing resin sheet 750 Folded board Resin sheet for waterproofing roof material mating part 760 Insulation

Claims (5)

In the construction method of the gentle slope roof using the folded plate roof material to construct the gentle slope roof in the building,
Folded plate roof material used for the gentle slope roof, which is a fixed-size folded plate roof plate having a predetermined length separately from the size of the roof of the building to be attached, and the folded plate roof material A large number of folded-plate roof materials made of a resin sheet for folded-plate waterproofing covering the entire surface of the folded-plate roof plate, which is the upper side in a state where it is attached to the building, are provided to cover the gentle-gradient roof in the building. ,
Carry these folded plate roofing materials to the gently sloped roof installation part of the building,
In the gently-gradient roof installation part, the ends in the longitudinal direction of each folded-plate roof material are the ends of the folded-plate roof material on the upstream side in the water flow direction and the ends of the folded-plate roof material on the downstream side in the water flow direction The folded plate roof materials are sequentially attached to the main building so that the overlapping portion of the folded plate roof material is formed on this portion so as to overlap the upper side in the vicinity thereof, and the folded plates constituting the gentle gradient roof The folded sheet roof material overlapping portion waterproof resin sheet having a predetermined width for waterproofing in all the folded plate roof material end overlapping portions between the roof materials, the water flow direction of the folded plate roof material end overlapping portions Overlap so as to cover the lower end of the folded roof material on the upstream side,
By attaching the waterproof resin sheet for waterproofing on the folded plate roofing material to the folded sheet waterproofing resin sheet provided on the upper side surface of each folded plate roofing material on which the folded plate roofing material overlaps, the waterproof gently sloped roof is attached to the building. A method of constructing a gentle slope roof using folded plate roofing material. When preparing a large number of folded-plate roofing materials according to claim 1 for assembling the roof to the building, when attaching the roof to the building by the construction method of the gentle slope roof using the folded-plate roofing material,
Also in the fitting part in the width direction of the adjacent folded plate roof material, a predetermined width is provided so as to cover the entire width direction end of the folded plate roof material on the upper side constituting the fitting part. Folding the resin sheet for waterproofing the folding roof material fitting part,
The folded sheet waterproof resin sheet provided on the upper side surface of each folded plate roof material on which the folded half roof material fitted part waterproof resin sheet covered with the fitted part of the folded sheet roof materials adjacent to each other in the width direction is provided. 2. The folded plate according to claim 1, wherein a waterproof graded-gradient roofing material is further attached to the building by welding to further waterproof the fitting portion in the width direction of the adjacent folded plate roofing material. A method of constructing a gentle slope roof using roofing materials. It replaces with the folded-plate roof material of Claim 2, The width direction edge parts of adjacent folded-plate roof material are long in the longitudinal direction like the longitudinal direction of the said folded-plate roof material, and an upper surface is a resin sheet for cap waterproofing. A covered roof material fitting cap is fitted and joined, and a predetermined width is provided so as to cover all gaps between the cap and the folded plate roof material on both sides on which the cap is fitted. Overlay the resin sheet for cap fitting waterproofing,
The cap fitting waterproof resin sheet is fused to both the folded waterproof resin sheet on the upper surface of the folded plate roofing material and the cap waterproof resin sheet on the upper surface of the cap. The construction method of the gentle slope roof using the folded-plate roof material of Claim 1 which attaches the waterproof grade gentle slope roof material which further aimed at waterproofing of the fitting part to the said building. Instead of overlapping the lower end of the folded plate roof material on the upstream side in the water flow direction and the vicinity thereof on the upper end portion of the folded plate roof material on the downstream side in the water flow direction and the upper side in the vicinity thereof, the water flow is fixed. In the state where the lower end in the longitudinal direction of the folded roof material on the upstream side in the direction is abutted against the upper end in the longitudinal direction of the folded roof material on the downstream side in the water flow direction,
The connecting portion is covered with a waterproof resin sheet between the folded-plate roof material abutting ends, and the upper side surface of the folded-plate roof material in the water flow direction above and below where the waterproof resin sheet between the folded-plate roof materials abutted ends overlaps. The folded sheet according to any one of claims 1 to 3, wherein the folded sheet roofing material contact end portion is waterproofed by being fused to both of the folded sheet waterproofing resin sheets. A method of constructing a gentle slope roof using flat roof material. The method for constructing a gentle slope roof using the folded plate roof material according to any one of claims 1 to 4, wherein a heat insulating material is provided in each lower part of the folded plate roof material.

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