JP2018145696A - Folded-plate roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folded-plate roof structure which can restrict a thermal expansion of a folded-plate member even when a length of a roof surface in an eaves ridge direction is long.SOLUTION: A folded-plate roof structure is provided with: an eaves side folded-plate member 4 supported by a plurality of first supports 3 fixed on a base; and a ridge side folded-plate member 5, which is partially overlapped from an upper on an end part at a ridge side of the eaves side folded-plate member 4, supported by a plurality of second supports 6 fixed on the base. The eaves side folded-plate member 4 and the ridge side folded-plate member 5 are unconstrained from each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a folded plate roof structure.

  Patent Document 1 discloses a conventional folded plate roof structure to which a so-called longitudinal joining method is applied. In the folded-plate roof structure described in Patent Document 1, a first vertical fence material arranged on the eaves side and a second vertical fence material arranged on the ridge side are cascaded in the eaves direction. The eaves side end of the second vertical wood is overlapped from above on the ridge side end of the first vertical wood.

  The first vertical material and the second vertical material are fastened together in an overlapped state, and are integrally connected in a mutually restrained state.

  In this way, according to the conventional folded plate roof structure, in order to apply the longitudinal joining method, since the vertical transport material with good portability is used, the transportability from the manufacturing factory to the construction site is good, and the construction is performed. Workability on site is also good.

JP 2013-213395 A

  By the way, this type of vertical wood is heated by being irradiated with sunlight in the daytime, and is cooled by a decrease in the temperature at night, so that heating and cooling are repeated. For this reason, if the length of the roof surface in the direction of the eaves is more than a certain length, excessive thermal expansion and contraction of the vertical struts will repeatedly occur, and an excessive burden will be placed on the support that supports the vertical struts. Arise.

  In this regard, in the folded plate roof structure to which the conventional longitudinal joint method is applied, although the multiple vertical members are used, the vertical members on the eaves side and the vertical members on the ridge side are constrained to each other. Connected together in a state. For this reason, even in the folded-plate roof structure to which the conventional longitudinal joint method is applied, the thermal expansion and contraction of each vertical roofing material is accumulated over the entire length of the roof surface in the eaves direction, and excessive thermal expansion and contraction occurs repeatedly. There was a problem.

  The present invention has been made in view of the above circumstances, and the purpose thereof is a folded plate roof structure capable of suppressing the amount of heat expansion and contraction of the folded plate material even when the length of the roof surface in the eaves-ridge direction is long. It is to provide.

  The folded plate roof structure according to one aspect of the present invention is stacked from above on the eaves side folded plate material supported by the first support fixed to the base, and the end of the eaves side folded plate material on the ridge side, A ridge-side folded plate material supported by a second support fixed to the base, wherein the eaves-side folded plate material and the ridge-side folded plate material are not restrained from each other.

  Further, in this folded plate roof structure, the first support member is provided with an eave side folded plate material support surface that supports the eaves side folded plate member, and the second support member has the ridge side folding. A ridge-side folded plate material support surface that supports the plate material is provided, and the second support has a height from the foundation to the ridge-side folded plate material support surface from the foundation to the eaves-side folded plate material support surface. It is preferable to be configured to be higher than the height.

  In the folded plate roof structure, the second support member is configured by attaching a spacer member to the eaves side folded plate material support surface of the first support member, and the upper surface of the spacer member. Is preferably the ridge side folded plate material support surface.

  Moreover, in this folded-plate roof structure, it is preferable that the water stop material is arrange | positioned between the edge part of the ridge side of the said eaves side folded board material, and the edge part of the eaves side of the said ridge side folded board material.

  Further, in this folded plate roof structure, the eaves side folded plate material is raised from a bottom surface portion whose longitudinal direction is parallel to the eave building direction and whose width direction is parallel to the ridge direction, and both end portions of the bottom surface portion in the width direction. The water stop material is provided over the bottom surface portion and the pair of upright portions, and the water stop material communicates with the portion corresponding to the bottom surface portion in the eaves-ridge direction. It is preferable that a water passage portion is provided.

  Moreover, in this folded-plate roof structure, it is preferable that the said eaves-side folded board material and the said ridge-side folded board material are comprised by the goby type folded board material.

  According to the folded-plate roof structure of this invention, even if the length of the eaves-ridge direction of a roof surface is long, the amount of thermal expansion / contraction of a folded-plate material can be suppressed.

FIG. 1 is a perspective view of a roof structure according to an embodiment of the present invention. FIG. 2 is a perspective view of the same lower roof. FIG. 3 is a perspective view of the upper roof of the above. FIG. 4A is a front view of the first support tool according to the embodiment. FIG. 4B is a side view of the first support tool according to the embodiment. FIG. 5 is a cross-sectional view of a principal part of the roof structure same as above. FIG. 6 is a cross-sectional view orthogonal to the ridge direction of the above. FIG. 7 is a plan view of the above eaves side folded plate material. FIG. 8A is a front view of the second support tool of the same. FIG. 8B is a side view of the second support tool of the same. FIG. 9A is a front view of the spacer member same as above. FIG. 9B is a side view of the spacer member. FIG. 9C is a plan view of the same spacer member. FIG. 10 is a cross-sectional view of a principal part of the roof structure same as above. FIG. 11 is a perspective view of an end portion on the eaves side of the ridge-side folded plate material same as above. FIG. 12 is an exploded perspective view of a modification of the above embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the folded plate roof structure of the present embodiment is a double folded plate roof structure in which an existing folded plate roof is used as a base and a repair method is applied to spread a newly installed folded plate roof. The folded plate roof structure includes a lower roof 1 as an existing folded plate roof and an upper roof 2 as a newly installed folded plate roof.

  In the following, the roof gradient direction is defined as the eave building direction, and the direction orthogonal to the eave building direction and along the horizontal plane is defined as the building direction.

  As shown in FIG. 2, the lower roof 1 is a roof configured by attaching a lower folded plate material 13 to a tight frame 11. The lower roof 1 includes a tight frame 11 and a plurality of lower folded plate materials 13.

  The tight frame 11 is a frame for fixing the lower folded plate material 13 constituting the roof surface of the lower roof 1 via a hanging member 12 or the like, and is fixed to the upper surface of a horizontal member 17 such as a purlin by welding, for example. . A plurality of horizontal members 17 are installed so as to increase stepwise from the eave toward the ridge, and accordingly, the plurality of tight frames 11 are also increased stepwise from the eave toward the ridge.

  A plurality of lower folded plate members 13 are bridged and installed on the plurality of tight frames 11. The lower folded plate material 13 of the present embodiment is constituted by a goby type folded plate material. Each lower folded plate 13 extends in the eaves ridge direction and has a width in the ridge direction. Each lower folded plate 13 includes a bottom surface portion 131 and a pair of upright portions 132 raised from both ends of the bottom surface portion 131 in the width direction. The bottom surface portion 131 and the pair of upright portions 132 are roll-formed. Is integrally molded.

  In the ridge direction of the lower folded plate material 13, another lower folded plate material 13 is disposed adjacently. Adjacent lower folded plate members 13 are configured such that the tips of the upright portions 132 overlap each other, and are connected by being fastened together with the suspension 12 of the tight frame 11 sandwiched therebetween ( A portion formed by the gouge fastening is called goze fastening portion 16). A pair of adjacent rising portions 132 are connected to form a peak portion 14, and a bottom portion 131 forms a valley portion 15. Therefore, the lower roof 1 is formed with the mountain part 14 and the valley part 15 repeatedly in the ridge direction.

  An upper roof 2 is installed above the lower roof 1 having such a configuration. As shown in FIG. 3, the upper roof 2 includes an eaves side folded plate material 4, a plurality of first support members 3 that support the eaves side folded plate material 4, a ridge side folded plate material 5, and a ridge side folded plate material 5. And a plurality of second supports 6 to be supported. In the upper roof 2, the eaves side end of the ridge side folded plate material 5 is superimposed on the ridge side end of the eaves side folded plate material 4 from above, but the eaves side folded plate material 4 and the ridge side folded plate material 5 Are unconstrained with each other.

  Here, “the eaves side folded plate material 4 and the ridge side folded plate material 5 are not restrained each other” means that the eaves side folded plate material 4 and the ridge side folded plate material 5 are not fastened to each other. One of the plate members 4 and the ridge-side folded plate member 5 is in a state where it can be thermally expanded and contracted without being influenced by the other folded plate member. As will be described later, even if the water-stopping material 7 is interposed between the eaves-side folded plate material 4 and the ridge-side folded plate material 5, and the restraining force of the water-stopping material 7 acts on each other, In this case, it is assumed that the eaves side folded plate material 4 and the ridge side folded plate material 5 are not restrained.

  The first support 3 is attached to the upper end portion of the mountain portion 14 of the lower roof 1. The first support 3 is attached to a plurality of locations in the eaves ridge direction with respect to one mountain portion 14 of the lower roof 1. Moreover, the 1st support tool 3 of this embodiment is attached with respect to all the peak parts 14. FIG. The eaves-side folded plate material 4 is supported by the plurality of first supports 3. As shown in FIG. 4, the first support 3 includes a support main body 31 and a suspension 35. The hanger 35 is detachably attached to the support body 31 via bolts and nuts.

  The support tool body 31 is a part constituting the main body of the first support tool 3. The support body 31 includes a first fixing member 32 and a second fixing member 33, and the first fixing member 32 and the second fixing member 33 are adjacent to each other in the ridge direction. It is configured by bolt fastening.

  The first fixing member 32 is located above the first mounting portion 321 mounted on the upper end surface of the mountain portion 14 of the lower roof 1 and the end of the first mounting portion 321 on the second fixing member 33 side. A first groove portion 322 extending to the first groove portion 322, a first vertical plate portion 323 extending upward from the upper end portion of the first groove portion 322, and a second fixing member from the upper end portion of the first vertical plate portion 323. 33 is provided with a first top plate portion 324 extending to the opposite side. The first groove portion 322 is formed in a groove shape opened to the second fixing member 33 side. Further, a hanging element 35 is bolted to the first top plate portion 324.

  The second fixing member 33 is located above the second mounting portion 331 mounted on the upper end surface of the mountain portion 14 of the lower roof 1 and the end of the second mounting portion 331 on the first fixing member 32 side. A second groove portion 332 extending to the upper side, a second vertical plate portion 333 extending upward from the upper end portion of the second groove portion 332, and a first fixing member from the upper end portion of the second vertical plate portion 333. 32 and a second top plate portion 334 extending to the opposite side.

  The second groove portion 332 is formed in a groove shape opened to the first fixing member 32 side, and is disposed opposite to the first groove portion 322. Accordingly, as shown in FIG. 5, the gouge fastening portion 16 is sandwiched between the second groove shape portion 332 and the first groove shape portion 322 while the gouge fastening portion 16 of the lower roof 1 is housed inside. Can do.

  The first support 3 may be fixed to the lower roof 1 by sandwiching the gouge fastening portion 16 between the second groove-shaped portion 332 and the first groove-shaped portion 322, or the lower roof 1 You may fix the 1st mounting part 321 and the 2nd mounting part 331 (it combines these and is called a mounting part) with respect to the tight frame 11 via fasteners, such as a screw.

  The second vertical plate portion 333 is a portion that is bolted in a state of being overlapped with the first vertical plate portion 323, and is formed longer in the vertical direction than the first vertical plate portion 323, as shown in FIG. 4A. Yes. The eaves side folded plate material 4 is configured to be placed on the second top plate portion 334 extending from the upper end portion of the second vertical plate portion 333, and the second top plate portion 334 is configured as the eave side folded plate material. 4 is supported. That is, in this embodiment, the upper surface of the 2nd top plate part 334 comprises the eaves side folded board material support surface.

  Here, in FIG. 6, the cross section which looked at the roof structure of this embodiment from the side is shown. As shown in FIG. 6, an eaves side folded plate material 4 is attached to the first support 3. The eaves side folded plate material 4 is a folded plate material positioned on the eaves side with respect to the ridge side folded plate material 5. The eaves-side folded plate material 4 is disposed above the lower roof 1 with a certain gap therebetween. The length of the eaves-side folded plate material 4 in the eaves-ridge direction is preferably 60 m or less. When the length of the eaves side folded plate material 4 in the eaves ridge direction is 60 m or less, even if the eaves side folded plate material 4 undergoes thermal expansion and contraction, the amount of thermal expansion and contraction can be within an appropriate range. The eaves side folded plate material 4 of the present embodiment is composed of a plurality of upper folded plate materials 41.

  As shown in FIG. 3, each upper folded plate member 41 extends in the eave building direction and has a width in the building direction. The upper folded plate material 41 is a goby-type folded plate material made of a steel plate. Each upper folded plate member 41 includes a bottom surface portion 411 and a pair of raised portions 412 raised from both end portions in the width direction of the bottom surface portion 411. The bottom surface portion 411 and the pair of raised portions 412 are roll-formed. Is integrally molded.

  The plurality of upper folded plate materials 41 are disposed adjacent to each other in the ridge direction. The upper folded plate members 41 adjacent to each other in the ridge direction are configured such that the end portions of the upright portions 412 overlap each other, and are fastened to each other with the hanging member 35 of the first support 3 interposed therebetween. .

  The eaves-side folded plate material 4 includes a plurality of upper folded plate materials 41, and a pair of adjacent raised portions 412 are connected to form a peak portion 14, and a bottom portion 411 forms a valley portion 15. Similar to the roof 1, a mountain portion 14 and a valley portion 15 are repeatedly formed in the ridge direction.

  Here, the eaves side folded board material 4 of this embodiment is comprised by connecting the upper folded board material 41 formed in the length over the full length of the eaves side folded board material 4 in the eaves ridge direction in the ridge direction. For example, a configuration as shown in FIG. 7 may be used. As shown in FIG. 7, the eaves-side folded plate material 4 is staggered so that the connecting portions A of the upper folded plate materials 41 adjacent in the eave building direction are not adjacent in the building direction. The upper folded plate members 41 adjacent to each other in the direction of the eaves are mutually restrained by the gouge fastening.

  In this way, by preventing the connecting portion in the eave building direction from being adjacent in the building direction, the number of overlapping upper folded plate materials 41 in the connecting portion A can be reduced as much as possible, and the water stoppage can be improved. it can.

  The ridge side folded board material 5 is a folded board material located in the ridge side rather than the eaves side folded board material 4, as shown in FIG. Similar to the eaves side folded plate material 4, the ridge side folded plate material 5 includes a plurality of upper folded plate materials 41. The ridge-side folded plate material 5 is disposed above the lower roof 1 with a certain gap therebetween. Since the structure of the ridge side folded board material 5 is the same as the structure of the eaves side folded board material 4, it abbreviate | omits about the overlapping description.

  The second support 6 is a member for supporting the ridge-side folded plate material 5. Similar to the first support 3, the second support 6 is attached to the upper end of the mountain portion 14 of the lower roof 1. The second support 6 is attached to one mountain portion 14 of the lower roof 1 at a plurality of locations in the eave building direction on the ridge side with respect to the eaves side folded plate material 4. Further, the second support 6 of the present embodiment is attached to all the mountain portions 14. The ridge-side folded plate material 5 is supported by the plurality of second supports 6.

  Here, the dimension between the 2nd support tool 6 most arrange | positioned at the eaves side, and the edge part of the eaves side folded board material 4 on the ridge side is a dimension which considered the amount of thermal expansion and contraction of the eaves side folded board material 4. It is preferable to do.

  As shown in FIG. 8, the second support tool 6 includes a support body 31, a suspension 35, and a spacer member 60. The hanger 35 is detachably attached to the support body 31 via bolts.

  The support tool body 31 is a part constituting the main body of the second support tool 6. Since this support tool main body 31 has the same structure as the support tool main body 31 of the first support tool 3, overlapping description will be omitted.

  The spacer member 60 is attached to the second top plate portion 334 and the first top plate portion 324 of the support body 31. As shown in FIGS. 9A to 9C, the spacer member 60 includes a first raised portion 61 placed on the first top plate portion 324 and a second raised portion 62 placed on the second top plate portion 334. And.

  As shown in FIG. 9B, the first raised portion 61 is formed in a cross-sectional hat shape. The first raised portion 61 is disposed between the first top plate portion 324 and the hanging member 35. The first raised portion 61 includes a bottom plate portion 611 that contacts the first top plate portion 324, a pair of standing piece portions 612 raised from both end portions of the bottom plate portion 611, and an upper end portion of the pair of standing piece portions 612. And a suspension support piece 613 extending in a direction away from each other.

  As shown in FIG. 8B, the suspension 35 is fixed to the first top plate portion 324 with a fixing tool in a state where the suspension 35 is placed on the suspension support piece 613. . For example, a bolt (dimension bolt) is used as the fixing tool. The hanging element 35 is a state in which the hanging element 35 is placed on the hanging element support piece 613, and inserts a cutting bolt into the through hole between the bottom plate 611 and the hanging element 35, and both ends of the cutting bolt in the longitudinal direction. It is fixed by screwing the nut to the screw.

  The second raised portion 62 is disposed on the second top plate portion 334. As shown in FIGS. 9A and 9C, the second raised portion includes a top surface portion 621 and a pair of side surface portions 622. As shown in FIG. 10, the top surface of the top surface portion 621 is formed so as to be substantially parallel to the top surface of the second top plate portion 334, and the top surface of the top surface portion 621 supports the ridge side folded plate material 5. A folded plate material support surface is formed.

  The pair of side surface parts 622 are located below the top surface part 621 via a gap and support the top surface part 621. The lower side of each side surface portion 622 has an inclined portion 623 that is inclined so that the base end portion on the first raised portion 61 side is positioned downward toward the first raised portion 61 side. The top surface portion 621 is reinforced against a load (positive pressure) from the ridge-side folded plate material 5 by a pair of side surface portions 622.

  In this regard, if the pair of side surface portions 622 are not provided, the ridge-side folded plate material 5 is supported only by the top surface portion 621. In this case, the strength becomes unstable when a load is applied, such as snow on the ridge-side folded plate material 5, but according to the spacer member 60 of the present embodiment, the load is applied even if the load is applied. The second top plate portion 334 can support the pair of side surface portions 622.

  In addition, although the clearance gap exists between the 2nd raising part 62 of this embodiment, and the front-end | tip part of the 2nd top-plate part 334, the inclination part 623 of the 2nd raising part 62 is the 1st. It is placed on the base end portion 335 of the second top plate portion 334. For this reason, the load applied to the second raised portion 62 can be supported by the second top plate portion 334 via the pair of side surface portions 622.

  The ridge side folded plate material support surface of the second support 6 is approximately the same as the height of the second raised portion 62 of the spacer member 60 with respect to the eaves side folded plate material support surface of the first support 3. It is formed at a high position. That is, the height from the upper end surface of the mountain portion 14 of the lower roof 1 to the ridge side folded plate material support surface is higher than the height from the upper end surface of the mountain portion 14 of the lower roof 1 to the eaves side folded plate material support surface. It is configured.

  As shown in FIG. 9A, the second raised portion 62 is connected to the first raised portion 61 via a connecting portion 63. For this reason, when the 1st raising part 61 is fixed with respect to the support body 31, the 2nd raising part 62 is also fixed with respect to the support body 31.

  Thus, the spacer member 60 of the present embodiment can not only support the load applied to the second raised portion 62 by the second top plate portion 334 via the pair of side surface portions 622, but also the first It connects with the top-plate part 324 via a fixing tool. For this reason, when a load is received by the second raised portion 62, the load can be received in a balanced manner at the center portion of the support tool body 31 in the ridge direction without tilting the suspension 6 and the support tool body 31. It can be installed stably.

  When the ridge-side folded plate material 5 is attached to the second support 6 having such a configuration, as shown in FIG. 6, the end of the ridge-side folded plate material 5 on the eaves side of the eaves-side folded plate material 4 It is located above the ridge side end with a certain overlap. At this time, the ridge-side folded plate material 5 and the eaves-side folded plate material 4 are not fixed to each other by the goby fastening and are not restrained. However, a water-stop material 7 is disposed between the eaves-side end of the ridge-side folded plate member 5 and the ridge-side end of the eave-side folded plate member 4.

  The water blocking material 7 prevents intrusion of rainwater from the eaves side end of the ridge side folded plate material 5 and the ridge side end of the eaves side folded plate material 4 to the lower roof 1 side as a base. The water stop material 7 includes a plurality of water stop packings 71 and 72 arranged at intervals in the eaves-ridge direction. As shown in FIG. 11, the water-stopping material 7 of this embodiment is comprised of two rows of water-stopping packings 71 and 72 separated in the direction of the eaves ridge (the eave-side water-stopping packing is the first water-stopping packing). 71 and the water-stop packing on the ridge side is the second water-stop packing 72). Each of the water stop packings 71 and 72 includes a bottom water stop portion 721 and a pair of rising water stop portions 723, and is formed over the entire length of the bottom surface portion 411 and the pair of upright portions 412.

  The bottom water stop portion 721 is a water stop material provided in a portion corresponding to the bottom surface portion 411. The bottom water stop portion 721 is formed thicker in the thickness direction (direction perpendicular to the roof surface) than each rising water stop portion 723 (specifically, it is formed to have a thickness about twice as large). . The bottom water stop portion 721 of the present embodiment is configured by stacking two layers of fixed packing.

  When using two layers of packing as the bottom water stop portion 721, it is preferable to use a packing wider than the upper layer in the lower layer. Thereby, it can prevent that the bottom water stop part 721 falls down at the time of construction, and can suppress that water stoppage is impaired.

  Further, the bottom water stop portion 721 of the first water stop packing 71 is provided with a water passage portion penetrating in the eaves ridge direction. The water flow portion is configured by a cutout portion 722 in which the bottom water stop portion 721 is cut out from below. The notches 722 are provided at a plurality of locations in the width direction of the bottom surface portion 411. As a result, rainwater that cannot be stopped by the first water-stop packing 71 and stopped by the second water-stop packing 72 can be drained onto the eaves-side folded plate member 4.

  As shown in FIG. 3, the folded plate roof structure having such a configuration is connected to the eaves side folded plate member 4 and the ridge side folded plate member 5 at the eave side end portion of the ridge side folded plate member 5. A water stop frame 8 is attached to cover the gap between the folded plate material 4 and the ridge side folded plate material 5. The still water frame 8 is formed along the shape of the end of the eaves side of the ridge-side folded plate material 5. The water stop frame 8 is fixed to the ridge-side folded plate material 5, but is not fixed to the eaves-side folded plate material 4.

〔effect〕
As described above, the folded plate roof structure of the present embodiment includes the eaves-side folded plate material 4 supported by the first support 3 fixed to the base, and the end of the eaves-side folded plate material 4 on the ridge side. And a ridge-side folded plate material 5 supported by a second support 6 fixed to the base from above. The eaves-side folded plate material 4 and the ridge-side folded plate material 5 are not bound to each other.

  According to this configuration, even if thermal expansion and contraction occurs between the eaves side folded plate material 4 and the ridge side folded plate material 5, the eaves side folded plate material 4 and the ridge side folded plate material 5 are not restrained each other. The thermal expansion / contraction generated in 4 and the thermal expansion / contraction generated in the ridge-side folded plate material 5 can be made independent. As a result, even if the length of the roof surface in the eaves-ridge direction is long, the amount of thermal expansion and contraction that occurs on the folded-plate roof can be within an appropriate range.

  Moreover, it is preferable that the folded-plate roof structure of this embodiment is equipped with the following additional structure. That is, in the folded plate roof structure of the present embodiment, the first support 3 is provided with an eaves side folded plate material support surface that supports the eaves side folded plate material 4. The second support 6 is provided with a ridge-side folded plate material support surface that supports the ridge-side folded plate material 5. The second support 6 is configured such that the height from the base to the ridge side folded plate material support surface is higher than the height from the base to the eaves side folded plate material support surface.

  According to this structure, the eaves side folded board material 4 and the ridge side folded board material 5 can be arrange | positioned apart by using the 1st support tool 3 and the 2nd support tool 6, and eaves can be easily carried out. It is possible to form a state in which the side folded plate material 4 and the ridge side folded plate material 5 are unconstrained with each other.

  Moreover, it is preferable that the folded-plate roof structure of this embodiment is equipped with the following additional structure. That is, in the folded plate roof structure of the present embodiment, the second support 6 is configured by attaching the spacer member 60 to the eaves-side folded plate material support surface of the first support 3. The upper surface of the spacer member 60 is a ridge side folded plate material support surface.

  According to this structure, since the 2nd support tool 6 can be formed using the 1st support tool 3, a common member can be utilized and inventory management becomes easy.

  Moreover, it is preferable that the folded-plate roof structure of this embodiment is equipped with the following additional structure. That is, in the folded-plate roof structure of this embodiment, the water stop material 7 is arrange | positioned between the edge part of the ridge side of the eaves side folded board material 4, and the edge part of the eaves side of the ridge side folded board material 5. FIG.

  According to this configuration, it is possible to suppress inundation from between the ridge side end of the eaves side folded plate material 4 and the eave side end of the ridge side folded plate material 5.

  Moreover, it is preferable that the folded-plate roof structure of this embodiment is equipped with the following additional structure. That is, in the folded-plate roof structure of the present embodiment, the eaves-side folded plate material 4 includes a bottom surface portion 411 having a longitudinal direction parallel to the eave building direction and a width direction parallel to the building direction, and both ends of the bottom surface portion 411 in the width direction. And a pair of raised portions 412 raised from the section. The water stop material 7 is provided over the bottom surface portion 411 and the pair of upright portions 412. The water blocking material 7 is provided with a water passing portion that penetrates in the eaves-ridge direction at a portion corresponding to the bottom surface portion 411.

  According to this configuration, even if water intrudes beyond the water blocking material 7, it can be drained to the eaves side through the water passage.

  Moreover, it is preferable that the folded-plate roof structure of this embodiment is equipped with the following additional structure. That is, in the folded-plate roof structure of this embodiment, the eaves-side folded board material 4 and the ridge-side folded board material 5 are comprised with a goby type folded board material.

  According to this configuration, the eaves side folded plate material 4 and the ridge side folded plate material 5 are connected to each other in an unconstrained state even if the folded plate materials adjacent in the ridge direction can be firmly connected to each other. Thus, the amount of thermal expansion and contraction can be suppressed.

[Modification]
In the folded plate roof structure of the above embodiment, the water blocking material 7 is bonded to the end of the eaves side folded plate material 4 on the ridge side, but the water blocking material 7 may have the following configuration, for example. .

  The water stop material 7 of the modification is provided on the water stop plate 9 as shown in FIG. The water stop plate 9 is sandwiched between the ridge side folded board material 5 and the eaves side folded board material 4. The water stop plate 9 includes a water stop plate main body 91 and a water stop material 7 bonded to the upper and lower surfaces of the water stop plate main body 91.

  The water stop plate main body 91 is configured by a metal plate formed in substantially the same shape as the cross-sectional shape of the eaves side folded plate material 4 and the ridge side folded plate material 5. The water stop plate body 91 is formed with a plurality of drain holes 92 penetrating in the thickness direction. The drain hole 92 is provided between a first water stop packing 71 and a second water stop packing 72 which will be described later.

  On the waterstop plate main body 91, a ridge 93 extending in a direction intersecting the eaves-ridge direction is formed. A plurality of ridges 93 are provided in the eaves ridge direction, and a ridge protruding upward and having a tip close to the ridge-side folded plate material, and a ridge protruding downward and having a tip close to the eave-side folded plate material. I have.

  The water blocking material 7 is provided continuously at positions corresponding to the bottom surface portion 411 and the pair of raised portions 412 in the eaves side folded plate material 4. The water stop material 7 is provided with the 1st water stop packing 71 and the 2nd water stop packing 72 similarly to the said embodiment, and these are separated in the eaves-ridge direction.

  Further, although not particularly illustrated, the water stop material 7 provided on the lower surface of the water stop plate main body 91 is formed with a water passage portion penetrating in the eaves-ridge direction. The water flow portion is formed by cutting out a part of the water-stopping material 7 and communicates the eave-side space partitioned by the water-stopping material 7 and the building-side space in the eaves-ridge direction. Thereby, the rain water which flowed down through the drain hole 92 of the water blocking plate main body 91 can be drained to the eaves side.

  The folded plate roof structure of the present modification uses a water stop plate 9 instead of the water stop material 7 bonded to the eaves side folded plate material 4 as in the above embodiment. Since the plurality of protrusions 93 are provided on the water stop plate 9, the rainwater can be blocked by the protrusions 93 even if rainwater enters beyond the first water stop packing 71. Therefore, a protrusion can be provided in the edge part of the eaves-side folded board material 4 without performing a press work, and a water stop can be improved easily.

〔application〕
Although the folded-plate roof structure of the said embodiment was comprised so that the whole ridge-side folded board material 5 might be supported by the 2nd support tool 6, only the eaves-side edge part of the ridge-side folded board material 5 is 2nd. You may support with the support tool 6 and you may support another part with the support tool (for example, 1st support tool 3) whose height is lower than the 2nd support tool 6.

  Although the water stop material 7 of the said embodiment was comprised by stacking two layers of fixed packing, it is not limited to this. For example, you may be comprised by the integral water stop material 7 formed by die-cutting. Moreover, although the water stop material 7 of the said embodiment was comprised by the two water stop packings 71 and 72, it may be provided with the water stop packing of 3 or more rows, and is not limited to the said embodiment.

  Although the folded-plate roof structure of the said embodiment was a double folded-plate roof structure of the lower roof 1 and the upper roof 2, the lower roof 1 is not provided and it replaces with the lower roof 1 and is directly on a roof base | substrate. The upper roof 2 may be constructed. In this case, the tight frame 11 may be used as the first support 3 and the tight frame 11 as the first support 3 may be raised by a spacer as the second support 6.

  In addition, the configuration of the above-described embodiment can be appropriately modified as long as it does not depart from the gist of the present invention.

Reference Signs List 3 First support 4 Eave side folded plate material 411 Bottom surface portion 412 Upper part 5 Building side folded plate material 6 Second support 60 Spacer member 7 Water-stopping material 722 Notch (water flow portion)

Claims (6)

An eaves-side folded plate material supported by a first support fixed to the base;
A ridge-side folded plate material that is overlapped from above on the end of the eaves-side folded plate material and supported by a second support fixed to the base;
The folded-plate roof structure, wherein the eaves-side folded plate material and the ridge-side folded plate material are unconstrained with each other. The first support tool is provided with an eaves side folded plate material support surface for supporting the eaves side folded plate material,
The second support tool is provided with a ridge-side folded plate material support surface that supports the ridge-side folded plate material,
The second support is configured such that a height from the base to the ridge side folded plate material support surface is higher than a height from the base to the eaves side folded plate material support surface. The folded plate roof structure according to claim 1. The second support tool is configured by attaching a spacer member to the eaves side folded plate material support surface of the first support tool,
The folded plate roof structure according to claim 2, wherein an upper surface of the spacer member is the ridge side folded plate material support surface. The waterstop material is arrange | positioned between the edge part of the ridge side of the said eaves side folded board material, and the edge part of the eaves side of the said ridge side folded board material, The any one of Claims 1-3 characterized by the above-mentioned. The folded-plate roof structure as described in a term. The eaves side folded plate material is
A bottom surface portion whose longitudinal direction is parallel to the eaves ridge direction and whose width direction is parallel to the ridge direction;
A pair of raised portions raised from both ends in the width direction of the bottom portion,
The water stop material is provided over the bottom surface portion and the pair of raised portions,
The folded plate roof structure according to claim 4, wherein the water blocking material is provided with a water passing portion that communicates in the eaves-ridge direction at a portion corresponding to the bottom surface portion. The folded plate roof structure according to any one of claims 1 to 5, wherein the eaves side folded plate material and the ridge side folded plate material are made of goby type folded plate materials.

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