JP2015121068A - Connection structure for roof panel and roof structure for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure for roof panel which makes it possible to easily connect roof panels having a waterproof sheet and roofing material while keeping high waterproof performance.SOLUTION: A connection structure for roof panel for connecting roof panels 10A, 10B in the flow-down direction comprises: an upstream side receiving material 34 including a hanging edge 341 at a position extending, to the downstream side, from the lower end of a sheathing roof board 32A of the upstream side roof panel; an upstream side waterproof sheet 33A; an upstream side roofing material 4A for performing covering over the upstream side waterproof sheet; a downstream side receiving material 35 which is attached to the upper end of a sheathing roof board 32B of the downstream side roof panel and includes a standing wall edge 351; a downstream side waterproof sheet 33B; and a downstream side roofing material 4B for performing covering over the downstream side waterproof sheet. Further, the upstream side receiving material is arranged above the downstream side receiving material; and the hanging edge is arranged at a position downstream and apart from the standing wall edge.

Description

  The present invention relates to a roof panel connection structure when a roof of a building is constructed by arranging the roof panels, and a roof structure of a building including the roof panel connection structure.

  There is known a method of constructing a roof of a building by arranging roofing materials formed in a panel shape. However, since the roof has a large area, the entire roof cannot be covered unless a plurality of roof panels are connected. Moreover, when arranging a plurality of roof panels in the flow-down direction through which rainwater flows, it is required that water leakage does not occur from those connecting portions.

  For example, in Patent Documents 1 and 2, when two metal roof plates are connected, they flow down by overlapping the lower end of the metal roof plate on the upper side with the upper end of the metal roof plate on the lower side in the flow direction. A connection structure that makes it difficult for rainwater to enter is disclosed. Furthermore, the water return which stood up diagonally was provided in the upper-end edge of the metal roof board of the lower side arrange | positioned below (refer patent document 1).

  Further, Patent Document 3 discloses a joint structure between metal plates serving as a roofing material, and the rear end of the metal plate disposed under water as shown in FIG. The top end portion of the water-side metal plate is superimposed on the portion, and the fitting protrusion is fitted. Furthermore, also in Patent Document 4, an engaging portion having a hanging plate portion provided at the front end of the water-side metal roof surface material, and a locking portion provided at the rear end of the water-side metal roof surface material. Is disclosed.

  Patent Document 5 discloses a metal roof board connection structure formed by inserting a connection receiving portion of a water-side roof board into an upper end opening of a water-side roof board.

JP 7-158216 A JP 7-158217 A JP-A-8-120845 Japanese Utility Model Publication No. 1-67216 Japanese Utility Model Publication No. 7-40851 JP-A-7-331818

  However, Patent Documents 1-5 disclose only a connection structure of a roofing material (primary waterproof layer) disposed on the uppermost surface of the roof. However, on the actual roof, as disclosed in Patent Document 6, a waterproof sheet (secondary waterproof layer) such as asphalt roofing is laid on the lower surface side of the roofing material to form a double waterproof structure. .

  For this reason, when connecting waterproof sheets, they must be connected so as to ensure high waterproof performance. It is desirable that this connection work can be easily performed.

  Therefore, the present invention relates to a roof panel connection structure capable of easily connecting a roof panel having a waterproof sheet and a roofing material while ensuring high waterproof performance, and a roof of a building having the roof panel connection structure. Its purpose is to provide a structure.

  In order to achieve the above object, a roof panel connection structure according to the present invention is a roof when a roof panel having a waterproof sheet laid on a base plate and a roofing material covering the waterproof sheet is connected in the flow-down direction. A panel connection structure, a water-side receiving material having a hanging edge at a position protruding from the lower end of the water-side base plate of the water-side roof panel to the water side, and the water-side base plate and the water-side A water-side waterproof sheet laid on the surface of the receiving material, a water-side roofing material covering the upper side of the water-side waterproof sheet, and a standing wall edge attached to the upper end of the water-side base plate of the water-side roof panel A waterside roofing material covering the upper side of the waterside waterproof sheet, and a waterside waterproof sheet laid on the surface of the waterside base plate and the waterside receiver And the water-side receiving material is disposed above the water-side receiving material. Together with the hanging edge and being disposed at a position spaced Underwater side of the vertical wall edge.

  Here, the water-side roofing material has a ridge that protrudes to a position farther to the water side than the drooping edge, and the waterside roofing material is on the water side of the drooping edge. It can be set as the structure which has a support part which receives the said collar part from the downward direction in the position which left | separated. Moreover, the support part of the said underwater side roofing material can be set as the structure which has a base extended on the underwater side so that it may become substantially parallel to the said collar part.

  Furthermore, the said roof panel is equipped with a pair of roof frame arrange | positioned substantially parallel in order to form a side edge, The said base plate can be set as the structure by which a both-sides edge is supported by the said pair of roof frame.

  In addition, it includes a shielding plate-like member fixed to the roof frame so as to straddle the upper side of the water-side roofing material or the water-side roofing material, and the upper surface of the water-side roofing material or the water-side roofing material Can be separated from the lower surface of the shielding plate member. Furthermore, it can be set as the structure which the upper edge part of the surface-like water-side roofing material or water-side roofing material which covers the space | interval between the said roof frames continuously on the upper surface of the said roof frame is piled up.

  Moreover, the roof structure of a building of the present invention is a roof structure of a building having any one of the above-described roof panel connection structures, and is constructed by installing the roof panel on a beam member extending in a horizontal direction. It is characterized by that.

  The roof panel connection structure of the present invention configured as described above has a hanging edge formed on the water-side receiving material that receives the lower end of the water-side waterproof sheet and the water-side receiving that receives the upper end of the water-side waterproof sheet. A standing wall edge is formed in the material. And the drooping edge is arrange | positioned in the position which left | separated to the water side rather than the standing wall edge.

  For this reason, even if water permeates between the roofing material and the waterproof sheet, the water is only collected on the lower waterproof sheet on the downstream side of the standing wall edge, so that it does not enter the base plate side and is highly waterproof. Performance can be secured. Moreover, since it is not necessary to connect the waterproof sheets only by covering the water-side receiving material above the water-receiving material, the waterproof sheets can be easily connected to each other.

  Furthermore, it has a water-side roofing material having a collar portion that projects to a position farther to the water side than the drooping edge, and a support portion that receives the collar portion from below at a position farther to the waterside than the drooping edge. If the connection is made with the underwater roofing material, the connection between the underwater roofing material and the underwater roofing material can be easily performed simply by covering.

  In particular, if the base of the underwater roofing material is provided with a pedestal that projects to the underwater side so as to be substantially parallel to the underside, the underside can be stably placed, The joining operation can be easily performed.

  In addition, the roof panel is provided with a pair of roof frames arranged substantially in parallel to form side edges, and the roof frames are stably supported by supporting both side edges of the base plate on the roof frames. Can be made.

  Furthermore, by arranging a shielding plate-like member (for example, a solar cell module) fixed to the roof frame so as to straddle the top of the roofing material, the roof is flat like a flat roof. Even if there is, high drainage performance can be secured.

  In addition, by configuring the upper edge of the planar roofing material on the upper surface of the roof frame, the gap between the pair of roof frames is covered with the roofing material without any gap, thereby improving the waterproof performance. it can.

  And a flat roof excellent in waterproof performance and drainage performance can be constructed only by installing the roof panel as described above on a beam member extending in the horizontal direction and providing a connection structure of the roof panel.

It is sectional drawing which showed the structure of the connection structure of the roof panel of embodiment of this invention. It is the perspective view which showed the schematic structure of the whole unit building in which the roof panel was installed. It is the disassembled perspective view which showed schematic structure of the roof panel. It is a perspective view explaining the process of attaching a water-side receiving material and a water-side receiving material to the field plate of a roof panel. It is a perspective view explaining the process of laying a waterproof sheet on the field board of a roof panel. It is sectional drawing which showed the state which closed between the roof frames with the roofing material. It is a perspective view explaining the process of attaching a blowing-up prevention metal fitting to a roof panel. It is a perspective view explaining the process of installing a roof panel on a building unit. It is a perspective view explaining the process of overlapping the lower end of a water-side roof panel on the upper end of a water-side roof panel. It is sectional drawing explaining the process of overlapping the lower end of a water-side roof panel on the upper end of a water-side roof panel. It is a perspective view explaining the process of joining the lower end of the underwater roofing material to the upper end of the underwater roofing material. It is a perspective view explaining the process of attaching a vertical cover between roof panels. It is sectional drawing of the roof structure in which the roof panel was installed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view for explaining a connection structure of roof panels 10A and 10B according to the present embodiment. FIG. 2 is a perspective view showing a schematic configuration of a unit building H as a building in which the roof panels 10A and 10B are installed.

  This unit building H is a building such as a house constructed by adjoining a plurality of building units H1,... As shown in FIGS. As shown in FIG. 8, the building unit H1 includes four steel columns H11,... Arranged at the corners, and steel beams that connect between the upper ends and the lower ends of the columns H11, H11. It is formed in a rectangular parallelepiped shape with materials (H12, H13, etc.). Moreover, this building unit H1 is a steel frame ramen structure in which all of the column material and the beam material are rigidly joined by welding.

  The beam material extending in the horizontal direction spanned between the upper ends of the pillars H11 and H11 is a ceiling beam on the lower floor and a roof beam on the uppermost floor. Here, the roof beam on the long side (girder side) is the girder roof beam H12, and the roof beam on the short side is the end roof beam H13.

  Further, in this unit building H, as shown in FIG. 2, a balcony unit H2 is installed at the corner of the second floor. The balcony unit H2 forms a terrace balcony that allows entry and exit from the adjacent building unit H1 on the second floor.

  On the other hand, FIG. 3 is an exploded perspective view for explaining a schematic configuration of the roof panel 10. Using this roof panel 10, the configuration of the common part of the roof panel 10A disposed on the water side and the roof panel 10B disposed on the water side will be described.

  The roof panel 10 includes a pair of roof frames 2 and 2 disposed substantially in parallel to form side edges, and a roofing material 4 (primary waterproof layer) disposed so as to close the space between the roof frames 2 and 2. , A waterproof sheet 33 (secondary waterproof layer) disposed on the lower surface side of the roofing material 4, and a solar cell as a shielding plate-like member fixed to the roof frames 2 and 2 so as to straddle the roofing material 4 Module 1 is mainly provided.

  A guide portion 3 is formed on the inner surface side of the pair of roof frames 2 and 2. The guide portion 3 includes support members 31 and 31 fixed to the pair of roof frames 2 and 2, respectively, and a base plate 32 as a base plate that supports both side edges of the support members 31 and 31. Yes. A waterproof sheet 33 is laid on the base plate 32.

  As shown in FIG. 6, the roof frame 2 connects the wide lower flange 21, the narrower upper flange 23, and the side edges of the lower flange 21 and the upper flange 23 arranged in parallel. The web 22 is formed in a substantially C-shaped or U-shaped cross-sectional view.

  Then, a wooden cross or the like is attached as a support member 31 along the inner surface of the web 22 of the roof frame 2. The support material 31 is attached in accordance with a (drainage) gradient formed on the upper surface of the roofing material 4. As shown in FIG. 13, the support member 31 is joined to the web 22 by a wood screw 31 a driven from the outer surface side of the roof frame 2.

  As shown in FIG. 6, both side edges of the base plate 32 are placed on the support members 31, 31 thus attached to the inner side surfaces of the roof frames 2, 2. Since the base plate 32 is formed to have a constant thickness, an upper surface having the same gradient as that of the support members 31 and 31 is formed.

  The base plate 32 is joined to the support member 31 by a nail 31b. Further, the upper surface of the field board 32 is covered with a waterproof sheet 33 such as polyethylene roofing. The waterproof sheet 33 is a member that forms a secondary waterproof layer, and is laid to a position on the inner surface of the roof frame 2 so that the entire surface of the field board 32 is covered with the waterproof sheet 33.

  Then, the roofing material 4 is installed from above the waterproof sheet 33. The roofing material 4 is formed of, for example, a hot-dip aluminized steel sheet having excellent waterproof performance and corrosion resistance.

  The roofing material 4 includes a rectangular flat plate portion 40 that is stacked on the base plate 32, standing wall portions 41 and 41 that rise substantially vertically from both side edges of the flat plate portion 40, and upper ends of the standing wall portions 41 and 41. Are formed by bending a single plate material.

  This roofing material 4 is also called a primary waterproof layer, and as shown in FIG. 3, a gradient in the longitudinal direction (downward direction) of the roof frame 2 is formed on the flat plate portion 40 that is the upper surface. That is, the height of the upright wall portion 41 having a substantially trapezoidal shape in side view varies depending on the position in the longitudinal direction of the roof frame 2, and a gradient is formed in the flat plate portion 40 connected thereto. The gradient formed in the flat plate portion 40 of the roofing material 4 matches the mounting gradient of the support material 31.

  As shown in FIG. 6, the roofing material 4 is joined by placing the upper edge portion 42 on the upper flange 23 of the roof frame 2 and screwing the drill screw 24 to penetrate the upper edge portion 42 and the upper flange 23. The

  The solar cell module 1 is arranged between the roof frames 2 and 2 thus closed by the roofing material 4 having a high waterproof performance. As shown in FIGS. 3, 7, and 13, receiving metal fittings 11 </ b> A and 11 </ b> B that are fixed to the roof frames 2 and 2 are attached to both side edges of the solar cell module 1 by fasteners 12.

  The brackets 11 </ b> A and 11 </ b> B have different lengths (heights) when the solar cell module 1 is tilted and attached to the roof frame 2. Here, the bracket 11A is shortened and the bracket 11B is lengthened. In addition, when attaching the solar cell module 1 in parallel with respect to the upper surface of the roof frame 2, the length (height) of the receiving metal fittings 11A and 11B is made the same.

  As shown in FIG. 7, the solar cell module 1 is fixed by screwing a drill screw 13 passed through the metal fittings 11 </ b> A and 11 </ b> B into an upper flange 23 of the roof frame 2. The lower surface of the solar cell module 1 attached in this way is separated from the upper surface of the roofing material 4 as shown in FIG. That is, there is a gap between the upper surface of the roofing material 4 and the lower surface of the solar cell module 1 that allows rainwater or the like to flow down.

  FIG. 7 is a perspective view showing the roof panel 10 to which the solar cell module 1 is assembled. A blow-up prevention metal fitting 25 is attached to the outer surface of one roof frame 2 of the roof panel 10.

  The blow-up preventing metal fitting 25 is a metal fitting formed in a substantially inverted L shape in a side view by a joining piece 251 and a protruding piece 252, and the joining piece 251 is joined to the web 22 at a position near the eaves by a drill screw 24.

  The configuration of the roof panel 10 described above is a common configuration between the water-side roof panel 10A and the water-side roof panel 10B. Next, a specific configuration of the water-side roof panel 10A or the water-side roof panel 10B will be described.

  As shown in FIG. 4, the water-side top plate 32 </ b> A of the water-side roof panel 10 </ b> A has a water-side receiving material 34 attached to the lower end 322 and a water-side upper end material 37 attached to the upper end 321. The water-side receiving member 34 and the water-side upper end member 37 are fixed to the water-side base plate 32A by tapping screws 36,.

  The water-side receiving member 34 is a long member having a substantially L-shape in cross-sectional view having substantially the same length as the width of the field plate 32A (distance between the roof frames 2 and 2), and is formed of a synthetic resin such as polyethylene (PE). The

  As shown in FIG. 10, the water-side receiving member 34 has a hanging edge 341 that protrudes substantially perpendicularly to the surface of the field plate 32A at a position protruding from the lower end 322 of the field plate 32A to the water side. Have. Then, as shown in FIG. 5, the water-side waterproof sheet 33 </ b> A is laid so as to cover up to the drooping edge 341.

  Here, the water-side waterproof sheet 33A is first drawn out in accordance with the center of the water-side field plate 32A, and is laid by expanding left and right folded portions. Further, the waterproof sheet 33A is fixed to the inner surface of the web 22 of the roof frame 2 by a waterproofing tape (not shown).

  On the other hand, the water-side upper end material 37 is also a long member having a substantially U-shape in cross-sectional view having substantially the same length as the width of the field plate 32A and is formed of synthetic resin. That is, as shown in FIG. 4, the water-side upper end material 37 is formed with an inclined surface having a downward slope projecting upstream from the upper end portion 321 of the base plate 32A. The upper end of the water-side waterproof sheet 33A is laid to a position that reaches the inclined surface of the water-side upper end material 37.

  On the other hand, in the underwater roof base plate 32B of the underwater roof panel 10B, the underwater receiving member 35 is attached to the upper end 321 and the underwater lower end member 38 is attached to the lower end 322.

  The underwater receiving member 35 is a long member having a substantially L shape in cross-section and substantially the same length as the width of the base plate 32B, and is formed of synthetic resin. As shown in FIG. 10, the underwater receiving member 35 has a standing wall edge 351 that protrudes upward at a substantially right angle to the surface of the field plate 32B on the upper end 321 of the field plate 32B. The underwater waterproof sheet 33B is laid so as to cover the underwater side surface of the standing wall edge 351.

  On the other hand, as shown in FIG. 4, the lower water bottom member 38 is also a long member having a substantially L shape in cross section having a length substantially the same as the width of the base plate 32 </ b> B, and is formed of synthetic resin. Further, the lower end of the water-side waterproof sheet 33 </ b> B is laid to a position that covers the water-side lower end material 38.

  The roofing materials 4A and 4B covering the upper sides of the waterproof sheets 33A and 33B laid in this way are also provided with a specific configuration around the connection portion 101. As shown in FIG. 10, the overwater roofing material 4 </ b> A of the overwater roof panel 10 </ b> A is provided with a flange portion 43 that protrudes to a position farther below the drooping edge 341 of the overwater receiving member 34. .

  In addition, a drooping edge 431 that protrudes downward is provided at the distal end edge of the flange portion 43. In short, on the water-side roof panel 10A, two drooping edges 341 and 431 are formed substantially in parallel at an interval from the lower end 322 of the field plate 32A toward the water side.

  On the other hand, the support part 44 is provided in the water-side roofing material 4B of the water-side roof panel 10B at a position farther to the water side than the standing wall edge 351 of the water-side receiving material 35. The support portion 44 is formed in a substantially inverted L shape in cross-sectional view, and becomes a pedestal 441 whose upper surface is substantially parallel to the flange portion 43.

  And the collar part 43 of 10 A of water-side roof panels is mounted on this support part 44. FIG. At this time, the support portion 44 is disposed between the drooping edges 341 and 431 at a position farther to the water side than the drooping edge 341 of the water-side receiving material 34.

  The support portion 44 of the underwater roofing material 4B and the flange portion 43 of the overwater roofing material 4A are joined together by rivets 45 as shown in FIG. In addition, a rivet hole 45a is drilled in advance at a position where the rivets 45,... Are driven, and a water stop process using a caulking material 46 is performed after joining.

  The roof panels 10A and 10B manufactured in the factory or the like as described above are transported to the construction site, lifted by a crane, and arranged side by side on the building units H1,.

  Below, the roof structure of the unit building H constructed by arranging a plurality of roof panels 10A and 10B will be described with reference to FIGS. In addition, about the process common to any of the water-side or water-side roof panels 10 </ b> A and 10 </ b> B, the description may be made using the reference numeral of the roof panel 10.

  First, as shown in FIG. 8, the roof panels 10 are arranged one by one on the building units H1,. The roof panel 10 is installed across a plurality of building units H1,. The relationship between the length of the roof panel 10 and the number of building units H1,.

  Here, in the lower flange 21 of the roof frame 2, connection holes are drilled in accordance with the interval between the girder roof beams H12,. Then, the bolt 21b is passed through the connecting hole, and the nut 21c is attached through the hole H121 provided in the girder roof beam H12.

  As shown in FIG. 10, a reinforcing plate 21 e and a spacer 21 d are interposed above and below the lower flange 21. Then, the bolt 21b is passed through the reinforcing plate 21e, the lower flange 21, the spacer 21d, and the flange of the girder roof beam H12 so as to protrude downward, and is fastened by the nut 21c.

  On the other hand, the blow-up preventing metal fitting 25 attached to the outer surface of the roof frame 2 on the side not fixed to the girder roof beam H12 protrudes above the upper flange 23 of the roof panel 10 installed adjacently as shown in FIG. A piece 252 is placed. The roof frame 2 on the side on which the protruding piece 252 is placed on the upper flange 23 is fixed to the girder roof beam H12 by bolts 21b.

  A drill screw 25 a that is screwed into the protruding piece 252 from above passes through the upper edge portion 42 of the roofing material 4 and is joined to the upper flange 23. As a result, the web 22 of the roof frame 2 that is not fixed to the girder roof beam H12 and the upper flange 23 of the roof frame 2 that is fixed to the girder roof beam H12 are connected by the blasting prevention metal fitting 25.

  Here, in the present embodiment, two types of roof panels 10A and 10B are arranged in the flow direction as shown in FIG. A roof panel 10A is installed on the water side in the rainwater flow direction, and a roof panel 10B is installed on the water side. The eaves of the roof panel 10B under the water are projected in a bowl shape.

  First, as shown in FIG. 9, the underwater roof panel 10B is installed. And 10A of water-side roof panels are installed so that a front-end | tip may overlap with the rear end of the water-side roof panel 10B.

  FIG. 10 is a cross-sectional view of the state of FIG. As shown in this figure, the roof panel 10A is lowered so that the collar portion 43 is placed on the pedestal 441 of the support portion 44 of the roof panel 10B previously installed. In addition, 10 A of roof panels are guide | induced to an exact position by inserting the bolt 21b protruded below according to the hole H121 of the girder roof beam H12.

  The roofing materials 4A and 4B whose ends are overlapped in this way are joined by driving rivets 45,... Into the rivet holes 45a, as shown in FIG. A caulking material 46 is applied to the head of the rivet 45.

  Thus, the connection part 101 used as the connection structure of the waterside roof panel 10A and the waterside roof panel 10B is constructed | assembled. On the other hand, as shown in FIG. 12, a gap between the roof panels 10B and 10B (10A and 10A) arranged in a direction substantially orthogonal to the flow-down direction is covered with a vertical cover 5 as a cover material. The long vertical cover 5 having a cross-sectional portal shape is fixed to the upper flange 23 of the roof frame 2 by a drill screw 51 driven into an end portion.

  The upper flange 23 of the roof frame 2 is covered with a waterproof tape 52 as shown in FIG. Then, a long vertical cover 5 having a cross-sectional view portal shape is placed thereon.

  By installing the plurality of roof panels 10A and 10B as described above, the appearance of the unit building H in which the entire surface of the land roof is covered with the roof panels 10A and 10B becomes the perspective view of FIG.

  Next, the operation of the roof structure of the unit building H provided with the connection portion 101 of the roof panels 10A and 10B and the connection portion 101 constructed by installing the roof panels 10A and 10B according to the present embodiment will be described.

  In the connection portion 101 of the roof panels 10A and 10B of the present embodiment configured as described above, a drooping edge 341 is formed on the water-side receiving material 34 that receives the lower end of the water-side waterproof sheet 33A as shown in FIG. At the same time, a standing wall edge 351 is formed on the underwater receiving member 35 that receives the upper end of the underwater waterproof sheet 33B. The drooping edge 341 is disposed at a position farther to the water side than the standing wall edge 351.

  The average amount of rain water W flows down the upper surface of the upper roofing material 4A, falls on the lower roofing material 4B along the drooping edge 431, and then flows down and drains from the eaves. Is done.

  Further, the upwardly protruding wall-like portion constituting the support portion 44 of the underwater roofing material 4B blocks the flow of the water W to the upper side of the water, and the pedestal extends from the upper end of the wall-like portion to the underwater side. Since 441 is overhanging, the water W cannot pass between the base 441 and the collar portion 43 of the support portion 44 under normal rain or the like.

  On the other hand, waterproofing between the support portion 44 and the standing wall edge 351 when heavy rain or strong wind occurs or when dew condensation occurs on the back surface of the roofing material 4A or when the gap between the pedestal 441 and the flange portion 43 becomes large. Water W may enter the sheet 33B.

  As described above, even when the water W enters the back side of the roofing materials 4A and 4B, the standing wall edge 351 becomes a levee to prevent further flow out to the water side. Even if water W enters between the back surface of the roofing material 4 </ b> A and the top surface of the waterproof sheet 33 </ b> A, it falls on the waterproof sheet 33 </ b> B below the standing wall edge 351 along the hanging edge 341.

  And the water W collected between the support part 44 and the standing wall edge 351 flows into the right and left both sides (paper surface orthogonal direction of FIG. 1) of the roof panel 10B, and drains R and R shown in FIGS. It is drained to the eaves through.

  Since this drainage channel R is surrounded by the waterproof sheet 33 raised up to the web 22 of the roof frame 2 and the standing wall portion 41 of the roofing material 4, waterproof performance is ensured.

  Thus, even if the water W enters between the roofing materials 4A, 4B and the waterproof sheets 33A, 33B, the underwater waterproof sheet 33B between the standing wall edge 351 and the support portion 44 on the downstream side thereof. Since it accumulates on the drainage channel R and drains quickly from the drainage channels R and R, water does not leak into the inside (girder roof beam H12 side) from the gap between the lower end 322 of the field plate 32A and the upper end 321 of the field plate 32B. High waterproof performance can be secured. In particular, if the space between the support portion 44 and the standing wall edge 351 is wide, the amount of water W that can be temporarily retained increases, so that even if the drainage of the drains R, R and the eaves is stagnant, the waterproof performance It is possible to extend the time that can be maintained.

  Further, simply by arranging the roof panel 10A from above the roof panel 10B so that the end portions overlap each other, the water-side receiving material 34 covers the water-side receiving material 35 so that the waterproof sheets 33A and 33B can be easily connected to each other. Can be connected. That is, there is no need to connect the waterproof sheets 33A and 33B, and the lower end of the waterproof sheet 33A that covers the hanging edge 341 and the upper end of the waterproof sheet 33B that covers the standing wall edge 351 need only be separated from each other. Can be greatly reduced.

  Furthermore, the water-side roofing material 4 </ b> A having the flange portion 43 that projects to a position farther below the drooping edge 341 than the drooping edge 341 of the waterside receiving material 34, and a position farther below the waterfall than the drooping edge 341. If it is a connection by the underwater roofing material 4B which has the support part 44 which receives the collar part 43 from the downward direction, the connection of the waterside roofing material 4A and the underwater roofing material 4B can be simply performed by covering. It can be carried out.

  In particular, if the support portion 44 of the underwater roofing material 4 </ b> B is provided with a pedestal 441 that projects to the underwater side so as to be substantially parallel to the heel portion 43, the heel portion 43 can be stably attached to the pedestal 441. Since it can be placed, the joining operation by the rivet 45 can be easily performed.

  Moreover, the solar cell module 1 is arrange | positioned with the roof panel 10 with respect to the roofing material 4 which has waterproof performance. Furthermore, a gradient is formed in the flat plate portion 40 that is the upper surface of the roofing material 4 in the longitudinal direction of the roof frame 2.

  For this reason, even if the roof is flat like a flat roof, a roof structure having high waterproof performance and drainage performance can be easily constructed by simply fixing the roof panels 10A and 10B side by side.

  That is, since the upper surface of the roofing material 4 and the lower surface of the solar cell module 1 are separated from each other, it is possible to prevent the solar cell module 1 from flowing down and preventing the drainage from stagnation. Moreover, since water does not collect around the solar cell module 1, it is possible to prevent breakdown and occurrence of electric leakage.

  And the guide part 3 matched with the desired inclination is provided in the inner surface side of the web 22 of the roof frame 2, and the upper surface of the roofing material 4 mounted on it is easily formed in the desired inclination. Can do.

  Furthermore, if the guide part 3 is constructed by the support members 31 and 31 fixed to the roof frames 2 and 2, respectively, and the base plate 32 that supports both side edges of the support members 31 and 31, a base surface is formed. Will be. If there is a lower ground, for example, even if a roofing material 4 having a thin plate thickness (low rigidity) is used, it can be stably supported. Further, even if the roofing material is not formed of a single plate, it is only necessary to connect the roofing materials on the field board 32, so that any form of roofing material can be used.

  Further, the upper edge portion 42 that is continuous in a planar shape is overlapped on the upper flange 23 that is the upper surface of the roof frame 2, so that the roof between the pair of roof frames 2 and 2 has no gap. It will be covered with the wiping material 4, and waterproof performance can be improved.

  And the land roof excellent in waterproof performance and drainage performance can be constructed only by installing the roof panels 10A and 10B as described above on the roof beams (H12 and H13) extending in the horizontal direction.

  Moreover, the web 22 used as the outer surface of one roof frame 2 of two roof panels 10A and 10A (10B, 10B) arrange | positioned adjacent to the direction substantially orthogonal to a flow-down direction, and the upper surface of the other roof frame 2 By connecting the upper flange 23 with the blow-up prevention metal fitting 25, it is possible to reliably counter the wind force blowing from below.

  Furthermore, just by covering the space between the upper flanges 23, 23 of the roof frames 2, 2 of the two roof panels 10A, 10A (10B, 10B) arranged adjacent to each other in a direction substantially perpendicular to the flow direction, Waterproofing treatment between adjacent roof panels 10A, 10A (10B, 10B) can be easily performed.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the above-described embodiment, the unit building H has been described as an example of the building. However, the present invention is not limited to this, and the roof panels 10A and 10B are installed and connected to a building constructed by a conventional construction method or the like. Structures and roof structures can be built.

  Moreover, although the said embodiment demonstrated the case where a flat land roof was constructed | assembled by arranging the several roof panels 10A and 10B, it is not limited to this, It is not limited to this, This embodiment is also applied to an inclined roof. A connection structure for the roof panels 10A and 10B can be provided.

  Furthermore, although the said embodiment demonstrated the structure which joins the collar part 43 of the roofing material 4A, and the support part 44 of the roofing material 4B, it is not limited to this, The roofing of another form A material (primary waterproof layer) can also be used.

  Moreover, although the said embodiment demonstrated the case where the guide part 3 comprised by the support materials 31 and 31 and the field board 32 was provided, it is not limited to this, Both the side edges of the field board 32 are directly set. The roof frames 2 and 2 may be joined.

  And although the said embodiment demonstrated using the solar cell module 1 as a shielding plate-shaped member, it is not limited to this. For example, in an area where there is a lot of snow, a shielding plate for snow can be used as the shielding plate member. By incorporating this shielding plate on the top surface of the roof panel, it is possible to reduce the snow load that acts on the field plate 32 attached to the roof frame 2.

  Moreover, the shielding board as a shielding board-like member can be integrated in the location where rain water blows up easily such as the eaves. That is, if the upper part of the roofing material 4 is covered with the shielding plate, it is possible to prevent the rainwater on the roofing material 4 from blowing up and leaking from the gap between the adjacent roof frames 2 and 2. Therefore, the waterproof performance of the entire roof is enhanced.

H unit building (building)
H1 Building unit H12 Girder roof beam (beam material)
H13 wife roof beam (beam material)
1 Solar cell module (shielding member)
10, 10A, 10B Roof panel 101 connection part (connection structure of roof panel)
2 Roof frames 32, 32A, 32B Field plate (base plate)
33, 33A, 33B Waterproof sheet 34 Water-side receiving material 341 Hanging edge 35 Water-side receiving material 351 Standing wall edge 4, 4A, 4B Roofing material 43 Gutter 431 Hanging edge 44 Supporting part 441 Base 42 Upper edge

Claims (7)

A roof panel connection structure when a roof panel having a waterproof sheet laid on a base plate and a roofing material covering the waterproof sheet is connected in the flow direction,
A water-side receiving material having a hanging edge at a position protruding from the lower end of the water-side base plate of the water-side roof panel to the water side;
A water-side waterproof sheet laid on the surface of the water-side base plate and water-side receiving material;
A water-side roofing material covering the upper side of the water-side waterproof sheet;
An underwater receiving member having a standing wall edge attached to the upper end of the underwater side base plate of the underwater roof panel;
A waterside waterproof sheet laid on the surface of the waterside base plate and the waterside receiving material,
A water-side roofing material covering the upper side of the water-side waterproof sheet,
The roof panel connection structure, wherein the water-side receiving material is disposed above the water-side receiving material, and the drooping edge is disposed at a position farther to the water side than the standing wall edge. .   The water-side roofing material has a ridge that protrudes to a position farther to the water side than the drooping edge, and the waterside roofing material is farther to the water side than the drooping edge. The roof panel connection structure according to claim 1, further comprising a support portion that receives the flange portion from below at a position.   The roof panel connection structure according to claim 2, wherein the support portion of the underwater roofing material has a pedestal that projects to the underwater side so as to be substantially parallel to the flange portion.   The said roof panel is provided with a pair of roof frames arrange | positioned substantially in parallel in order to form a side edge, The both sides edge is supported by the said pair of roof frames, The said base plate is characterized by the above-mentioned. The connection structure of the roof panel as described in any one of 3.   A shielding plate-like member fixed to the roof frame so as to straddle the upper side of the water-side roofing material or the water-side roofing material, and the upper surface of the water-side roofing material or the water-side roofing material is The roof panel connection structure according to claim 4, wherein the roof panel connection structure is separated from the lower surface of the shielding plate-like member.   The upper edge of the surface-like water-side roofing material or water-side roofing material that continuously covers the space between the roof frames is overlaid on the upper surface of the roof frame. Connection structure of the described roof panel.   It is a roof structure of the building provided with the connection structure of the roof panel as described in any one of Claims 1 thru | or 6, Comprising: It builds by installing the said roof panel on the beam material extended in a horizontal direction. Building roof structure characterized by