JP2015196997A - Connection structure of roof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of a roof panel, allowing reducing labor for construction for obtaining waterproof.SOLUTION: In a connection structure of a roof panel 1, roof panels adjoin in a direction of inclination of a roof. The roof panel 1 disposed above in the direction of inclination of the roof has a projecting connection part 21 at the lower end of the roof panel 1. The roof panel 1 disposed below in the direction of inclination of the roof has its upper end formed as a bonding part 31. A waterproof packing 16 is provided on the surface of the bonding part 31. The connection part 21 is disposed on the surface of the bonding part 31 with the rear surface of the connection part 21 in close contact with the waterproof packing 16. The waterproof packing 16 is formed by a flexible packing 161 and an inflatable packing 162.

Description

  The present invention relates to a connection structure for roof panels, and more particularly, to a connection structure for roof panels adjacent in the inclination direction of the roof.

  Conventionally, a roof panel 1 as shown in FIG. 11 has been proposed. The roof panel 1 is formed by providing a surface metal skin 3 over the entire surface of a core material 2. Further, a back metal skin 4 is provided on the entire back surface of the core material 2. The roof panel 1 is formed long in the vertical direction. A plurality of peaks 5 are projected from the surface (upper surface) of the roof panel 1. The mountain portion 5 is formed to be long over the entire length of the roof panel 1 in the vertical direction. One end of the roof panel 1 in the horizontal direction is formed as a cover-side end 6, and the other end is formed as a laying-side end 7. A cover piece 8 is formed on the cover side end 6. The covering piece 8 is formed integrally with the surface metal shell 3. The covering piece 8 is formed so as to protrude outward from the side end face of the core member 2. The covering piece 8 is provided over the entire length of the roof panel 1 in the vertical direction. A sealing tape 9 is provided on the back surface (lower surface) of the covering piece 8. The sealing tape 9 is provided over the entire length of the roof panel 1 in the vertical direction. A connecting portion 10 is provided at the laying side end portion 7. The connecting portion 10 is provided so as to protrude from the surface of the roof panel 1. The connecting portion 10 is formed to be long over the entire length of the roof panel 1 in the vertical direction. A packing 11 is provided on the side end surface of the core material 2 of the laying side end 7.

  Then, as shown in FIG. 12, a plurality of the roof panels 1 are mounted on the roof base material 50 such as a purlin, and the roof is formed by fixing the roof panel 1 to the roof base material 50 with a fixture 55 such as a text. The In this case, the roof panel 1 is disposed such that the vertical direction thereof coincides with the inclination direction of the roof.

  As shown in FIG. 6, the roof panel 1 that is adjacent in the lateral direction (direction orthogonal to the roof inclination direction) has a cover-side end portion 6 of one roof panel 1 and a laying-side end portion 7 of the other roof panel 1. Is connected. In this case, the covering piece 8 of the covering side end portion 6 covers the connecting portion 10 of the laying side end portion 7. Waterproofing between the roof panels 1 adjacent in the lateral direction is ensured by a sealing tape 9 and a packing 11.

  The roof panel 1 adjacent in the vertical direction (direction parallel to the roof inclination direction) is, as shown in FIG. 12, the lower end of the roof panel 1 (hereinafter referred to as the water-side roof panel 20) located above in the roof inclination direction. And the upper end portion of the roof panel 1 (hereinafter referred to as the underwater roof panel 30) located below in the inclination direction of the roof. In this case, a connection portion 21 is formed at the lower end portion of the water-side roof panel 20. The connecting portion 21 is formed by cutting the core material 2 and the back surface metal skin 4 at the lower end portion of the water-side roof panel 20. Accordingly, the connecting portion 21 is formed at the lower end portion of the surface metal shell 3. The longitudinal dimension of the connecting portion 21 is formed to be about 400 mm. And the water-side roof panel 20 and the water-side roof panel 30 are connected by overlapping and joining the connection part 21 of the water-side roof panel 20 on the surface side of the upper end part of the water-side roof panel 30. (For example, see Patent Document 1).

  Waterproofing between the water-side roof panel 20 and the water-side roof panel 30 adjacent in the vertical direction is ensured by the sealing tape 14, the sealing materials 15 and 16, and the packing 17. As shown in FIG. 13, the sealing tape 14 is provided on the surface of the upper end portion of the underwater roof panel 30. The sealing tape 14 is provided in two rows over the entire length in the lateral direction of the underwater roof panel 30. A sealing material 15 is provided between the two rows of sealing tapes 14 over the entire length in the lateral direction of the underwater roof panel 30. The packing 17 is provided on the surface of the upper end portion of the underwater roof panel 30 above the sealing tape 14. The packing 17 is provided over the entire lateral length of the underwater roof panel 30. Above the packing 17, the sealing material 16 is provided over the entire lateral length of the underwater roof panel 30. Then, as shown in FIG. 14, the back surface (lower surface) of the connection portion 21 of the water-side roof panel 20 is in close contact with the sealing tape 14, the sealing materials 15, 16, and the packing 17, so that the water-side roof adjacent in the vertical direction. Waterproofing between the panel 20 and the underwater roof panel 30 is ensured.

Japanese Patent No. 2651106

  However, in the above-described conventional example, it is necessary to provide the sealing tape 14, the sealing materials 15 and 16, and the packing 17, and there is a problem that it takes time and labor to obtain waterproofness.

  This invention is made | formed in view of said point, and it aims at providing the connection structure of the roof panel which can reduce the effort of construction for obtaining waterproofness.

  The connection structure of the roof panel according to the present invention is a connection structure of roof panels adjacent in the inclination direction of the roof, and the connection portion protrudes from the lower end portion of the roof panel arranged upward in the inclination direction of the roof. The roof panel disposed below in the inclination direction of the roof has an upper end portion formed as a joint portion, a waterproof packing is provided on the surface of the joint portion, and the back surface of the connection portion is in close contact with the waterproof packing. It is arrange | positioned on the surface of the said junction part, The said waterproof packing is formed with the flexible packing and the expansible packing, It is characterized by the above-mentioned.

  In this invention, it is preferable that the said expansible packing is arrange | positioned above the said flexible packing.

  In the present invention, since the waterproofness of the connecting portion of the roof panel adjacent in the inclination direction of the roof is improved by the flexible packing and the expansible packing, there is almost no sealing other than the waterproof packing, and the waterproofness is obtained. Therefore, the labor of construction can be reduced.

It is a perspective view which shows an example of embodiment of this invention. It is sectional drawing which shows an example of a roof panel. It is a partial perspective view which shows an example of an underwater roof panel. It is a partial perspective view which shows an example of a waterside roof panel. It is a partial top view which shows an example of the underwater side roof panel adjacent in a horizontal direction. It is a partial sectional view showing an example of a roof panel adjacent in the horizontal direction. FIG. 7A is a partial perspective view showing an example of the underwater roof panel adjacent in the horizontal direction, and FIG. 7B is a partial plan view showing an example of the roof panel adjacent in the vertical and horizontal directions. It is a partial top view which shows an example of the water-side roof panel and water-side roof panel which adjoin a horizontal direction. It is a partial top view which shows an example of the water-side roof panel adjacent in a horizontal direction, and the water-side roof panel adjacent in a horizontal direction. It is a partial sectional view showing an example of a roof panel adjacent in the vertical direction. It is sectional drawing which shows the roof panel of a prior art example. It is a perspective view which shows the connection structure of the roof panel of a prior art example. It is a perspective view which shows the waterproof structure of the roof panel of a prior art example. It is sectional drawing which shows the connection structure of the roof panel of a prior art example.

  Hereinafter, modes for carrying out the present invention will be described.

  As shown in FIG. 1, the present embodiment is a connection structure of roof panels 1 that are adjacent to each other in the roof inclination direction, and includes a roof panel 1 and a waterproof packing 16. The roof is formed by installing a plurality of roof panels 1 on a roof base material 50 such as a main house. The roof panel 1 is installed to be inclined so that rainwater can easily flow, and this inclination is the inclination direction of the roof. The roof is formed by arranging a plurality of roof panels 1 in a direction in which the roof is inclined (a direction parallel to the roof) and a direction perpendicular to the direction in which the roof is inclined. Of the roof panels 1 adjacent to each other in the roof inclination direction, the roof panel 1 positioned above in the roof inclination direction is referred to as a water-side roof panel 20. Of the roof panels 1 adjacent to each other in the roof inclination direction, the roof panel 1 positioned below in the roof inclination direction is referred to as a water-side roof panel 30. Usually, the water-side roof panel 20 is located on the eaves side of the water-side roof panel 30. Conversely, the underwater roof panel 30 is located on the ridge side of the overwater roof panel 20.

  As shown in FIG. 2, the roof panel 1 is formed by providing a surface metal skin 3 over the entire surface of the core material 2. Further, a back metal skin 4 is provided on the entire back surface of the core material 2. The core material 2 is preferably provided with heat insulation and fire resistance, and is formed of, for example, a resin foam such as polyisocyanurate foam, urethane foam, or phenol foam. The thickness of the core material 2 can be set to 70 to 80 mm at the peak portion 5 and 30 to 40 mm at the flat portion 15, but is not limited thereto. The surface metal shell 3 and the back metal shell 4 are preferably provided with corrosion resistance, and are formed of, for example, a Galvalume steel plate (registered trademark), a coated steel plate, a vinyl chloride steel plate, or the like. The plate thickness of the front surface metal skin 3 and the back surface metal skin 4 is 0.3 to 0.8 mm, but is not limited thereto.

  The roof panel 1 is formed long in the vertical direction (same as the inclination direction of the roof). A plurality of peaks 5 are projected from the surface (upper surface) of the roof panel 1. The mountain portion 5 is formed to be long over the entire length of the roof panel 1 in the vertical direction. Between the adjacent mountain parts 5 of the roof panel 1 is formed as a flat part 15. One end of the roof panel 1 in the horizontal direction is formed as a cover-side end 6, and the other end is formed as a laying-side end 7. A cover piece 8 is formed on the cover side end 6. The covering piece 8 is formed integrally with the surface metal shell 3. The covering piece 8 is formed to protrude outward from the side end face of the core material 2 (end face of the covering side end). The covering piece 8 is provided over the entire length of the roof panel 1 in the vertical direction. A sealing tape 9 is provided on the back surface (lower surface) of the covering piece 8. The sealing tape 9 is provided over the entire length of the roof panel 1 in the vertical direction. A connecting portion 10 is provided at the laying side end portion 7. The connecting portion 10 is provided so as to protrude from the surface of the roof panel 1. The connecting portion 10 is formed to be long over the entire length of the roof panel 1 in the vertical direction. A packing 11 is provided on the side end surface of the core material 2 of the laying side end 7. A plurality of grooves 12 are formed on the back surface of the roof panel 1. The groove portion 12 is formed to be long over the entire length of the roof panel 1 in the vertical direction. The groove 12 is provided at a position corresponding to the peak 5.

  A water-side roof panel 30 and a water-side roof panel 20 are formed from the roof panel 1. The underwater roof panel 30 has an upper end portion (an end portion on the upper water side) in the roof inclination direction formed as a joint portion 31. The joint portion 31 is formed over the entire length of the underwater roof panel 30 in the lateral direction (the same as the direction orthogonal to the roof inclination direction). The joint portion 31 is formed with a dimension of about 400 mm from the upper end of the roof panel 1. In the underwater roof panel 30, a part of the covering piece 8 is cut off at the joint portion 31. As shown in FIG. 3, the covering piece 8 protrudes from the flat portion 15 of the roof panel 1 obliquely upward, and protrudes from the upper end of the rising piece 80 toward the side (outside) of the roof panel 1. The cover piece 81 is formed by a cover piece 81 and a locking piece 82 projecting obliquely downward from the tip of the cover piece 81. Then, at the upper end portion of the covering piece 8 (part of the joining portion 31), a part of the covering piece 81 and the locking piece 82 are cut away to form an upper cutout portion 83. In other words, a part of the covering piece 81 and the locking piece 82 have a dimension of about 400 mm from the upper end of the covering piece 8, preferably about 380 mm (indicated by L1 in FIGS. 3, 5, 8, and 9). Excised. In this case, the sealing tape 9 protrudes about 3 mm from the cut end edge of the remaining covering piece 81. In order to prevent the sealing tape 9 from being cut, a part of the covering piece 81 is cut out in a state where a part thereof is peeled off from the covering piece 81.

  The water-side roof panel 20 is formed by cutting the core material 2 and the back surface metal skin 4 of the roof panel 1 at the lower end portion (end portion on the water side) in the roof inclination direction. And the connection part 21 is formed with the surface metal shell 3 which remained in the edge part of the water-side roof panel 20 on the water side. The connecting portion 21 is formed over the entire length in the lateral direction of the water-side roof panel 20. The connecting portion 21 is formed with a dimension of about 400 mm from the lower end of the roof panel 1. In the waterside roof panel 20, a part of the surface metal shell 3 constituting the connecting portion 10 is cut off at the connection portion 21. As shown in FIG. 4, the surface metal skin 3 of the connecting portion 10 includes an inclined piece 101 protruding obliquely upward from the flat portion 15 of the roof panel 1, and a side (outside) of the roof panel 1 from the upper end of the inclined piece 101. ) And an angular piece 103 protruding obliquely downward from the tip of the upper piece 102. Then, in the connection portion 21, a part of the upper piece 102 and the corner piece 103 are cut away to form the lower cutout portion 104. That is, a part of the upper piece 102 and the square piece 103 are cut off from the lower end of the connecting portion 21 with a dimension of about 400 mm (indicated by L2 in FIGS. 4, 8, and 9). In this case, the width of the remaining upper piece 102 is about 2/3 of the width of the original upper piece 102. Further, the lower end portion of the remaining upper piece 102 is cut away to form a cutout portion 105. The dimension of the cutout portion 105 (indicated by L3 in FIGS. 4, 8, and 9) is formed to be about 20 mm from the lower end of the connection portion 21.

  The upper cut portion 83 and the lower cut portion 104 as described above are the connection portions of the adjacent roof panels 1 when the roof panel 1 is installed as described later, and the surface metal skin 3 in the covering piece 8 or the connecting portion 10. This is to reduce the number of overlapping. When the overlap of the surface metal shell 3 increases, the familiarity between the metal plates such as steel plates deteriorates, the surface metal shell 3 floats, and a gap is generated between the surface metal shells 3, so that the watertightness is lowered. There is a risk.

  And when forming a roof with the several roof panel 1, it carries out as follows.

  First, a plurality of underwater roof panels 30 are connected side by side in the horizontal direction. In this case, as shown in FIG. 5, the water-side roof panel 30 adjacent in the lateral direction is above the connecting portion 10 of one water-side roof panel 30 (hereinafter referred to as a first water-side roof panel 301). The covering piece 8 of the other underwater roof panel 30 (hereinafter, referred to as a second underwater roof panel 302) is covered. In this case, the sealing tape 9 on the back surface of the covering piece 8 is in close contact with the surface (upper surface) of the upper piece 102 of the connecting portion 10. As shown in FIG. 6, the packing 11 is sandwiched between the laying side end portion 7 of the first underwater roof panel 301 and the covering side end portion 6 of the second underwater roof panel 302. Further, in the joint portion 31, the connecting portion 10 is exposed from the upper cutout portion 83.

  Next, as shown in FIG. 7A, the waterproof packing 16 is disposed at the joint portion 31. The waterproof packing 16 is a combination of a flexible packing 161 and an inflatable packing 162. The flexible packing 161 is softer than a normal packing and easily deforms into an arbitrary shape. The softness of the flexible packing 161 can be expressed by a needle penetration degree according to JIS K 2207. This penetration is a measure of the hardness of the asphalt, and 1 represents the length of 0.1 mm that the specified needle has entered vertically into the sample under the test conditions. Therefore, also in the flexible packing 161, the thing with the softness | flexibility which the needle | hook which applied the load of 100g approached 5.5-7.5 mm (needle penetration degree 55-75) in 5 seconds is preferable. The normal packing is formed of vulcanized butyl rubber or the like, while the flexible packing 161 is formed of non-vulcanized butyl rubber or the like. Examples of the flexible packing 161 include Santac Sealer Q manufactured by Hayakawa Rubber Co., Ltd. The flexible packing 161 is formed in, for example, a belt shape having a width of 10 to 20 mm and a thickness of 3 to 10 mm. The flexible packing 161 is provided in close contact with the surface of the surface metal skin 3 of the joint portion 31 while being deformed by following the shape of the peak portion 5 and the flat portion 15. The flexible packing 161 is provided over a plurality of the underwater roof panels 30 arranged in the horizontal direction. The flexible packing 161 is provided so as to cross a location immediately above the water at the lower end of the upper cut portion 83 (10-30 mm above the water). Since the flexible packing 161 is easy to adhere, a release film 163 is provided on the upper surface thereof.

  The inflatable packing 162 expands gradually over time. The expandable packing 162 is a tape that has been compressed by impregnating a base material with a resin, and is available in a state of being wound into a roll. When the roll-like inflatable packing 162 is released and applied to the adherend, the force is released and gradually expands to expand to about 5 times the thickness during compression processing after about 24 hours. The inflatable packing 162 is preferably, for example, such that it expands and changes from the initial thickness to about five times the thickness after about 24 hours have elapsed after being installed in the joint portion 31, so that the gap is completely removed. It can be closed. Such inflatable packing 162 is formed of a resin foam such as foamed urethane, for example. Examples of the inflatable packing 162 include Ilmod Eco manufactured by Tremco Ilbruck (Tremco Illbrook / Germany). The expandable packing 162 is formed in a belt shape having a width of 10 to 20 mm and a thickness of 3 to 5 mm in an initial state (a state before expansion), for example. The inflatable packing 162 is provided in close contact with the surface of the surface metal skin 3 of the joint portion 31 while being deformed by following the shapes of the peak portion 5 and the flat portion 15. The inflatable packing 162 is provided over a plurality of underwater roof panels 30 arranged in the lateral direction. The inflatable packing 162 is disposed on the water side of the flexible packing 161. The inflatable packing 162 is provided so as to cross a location of 10 to 30 mm from the upper end of the underwater roof panel 30, for example. Next, a plurality of water-side roof panels 20 are arranged side by side in the horizontal direction. In this case, the water-side roof panel 20 is disposed on the water-side of the water-side roof panel 30 (the upper side in the roof inclination direction). The connection portion 21 of the water-side roof panel 20 is put on the surface of the joint portion 31 of the water-side roof panel 30. Here, a portion corresponding to the peak portion 5 of the surface metal shell 3 of the connection portion 21 is covered on the peak portion 5 of the joint portion 31. A portion corresponding to the flat portion 15 of the surface metal shell 3 of the connection portion 21 is covered on the flat portion 15 in the joint portion 31. The connecting portion 21 is placed on the waterproof packing 16. Here, since the release film 163 is provided on the upper surface of the flexible packing 161, the back surface (lower surface) of the connecting portion 21 and the flexible packing 161 are not bonded. Therefore, the water-side roof panel 20 can be moved slightly in the vertical direction and the horizontal direction with respect to the water-side roof panel 30, and the alignment of the water-side roof panel 20 (adjustment of the installation position) can be easily performed. Further, the expandable packing 162 is in a state before it is greatly expanded, and the back surface of the connection portion 21 and the expandable packing 162 are not in close contact with each other. Therefore, the water-side roof panel 20 can be moved slightly in the vertical direction and the horizontal direction with respect to the water-side roof panel 30, and the alignment of the water-side roof panel 20 (adjustment of the installation position) can be easily performed.

  The plurality of water-side roof panels 20 are sequentially arranged in the horizontal direction. In this case, first, as shown in FIG. 8, the connection portion 21 of the first water-side roof panel 201 is put on the joint portion 31 of the first water-side roof panel 301. At this time, the upper piece 102 in the connection portion 21 of the first water-side roof panel 201 is placed on the cover piece 81 of the second water-side roof panel 30. Moreover, the front-end | tip (underwater end part) 211 of the connection part 21 of the 1st waterside roof panel 201 is the same as the lower end position H of the junction part 31 of the 1st underwater roof panel 301, or this lower end position Projects below H (under water). The position of the tip 211 of the connecting portion 21 with respect to the lower end position H of the joint portion 31 can be adjusted by moving the first water-side roof panel 201 in the inclination direction of the roof. By moving the first water-side roof panel 201 in the inclination direction of the roof, the dimensional error in the interval between the adjacent roof base materials 50, the error in the installation position (construction position) of the roof panel 1, the vertical length of the roof panel 1 It is possible to absorb dimensional error in the direction. The dimension which moves the 1st waterside roof panel 201 to the inclination direction of a roof is the same as the dimension L3 of the notch part 105 in the inclination direction of a roof. Accordingly, the cutout portion 105 of the first water-side roof panel 201 and the upper cutout portion 83 of the second water-side roof panel 302 may overlap, and this overlapping portion is formed as the gap 52.

  After disposing the first water-side roof panel 201 in this way, the second water-side roof panel 202 is disposed on the side of the laying side end portion 7 of the first water-side roof panel 201. As shown in FIG. 9, the connecting portion 21 of the second water-side roof panel 202 is put on the joint portion 31 of the second water-side roof panel 302. At this time, the covering piece 8 in the connection portion 21 of the second water-side roof panel 202 is placed on the connecting portion 10 of the first water-side roof panel 201. Moreover, the front-end | tip (water-side edge part) 212 of the connection part 21 of the 2nd water-side roof panel 202 and the front-end | tip 211 of the connection part 21 of the 1st water-side roof panel 201 are on the straight line in the horizontal direction. Try to line up. As a result, the water-side end portions of the plurality of water-side roof panels 20 are not lined up, but form a linear appearance, and the appearance of the roof is unlikely to deteriorate. In addition, the gap 52 is covered with the covering piece 8 in the connection portion 21 of the second water-side roof panel 202 and is difficult to see. As a result, the appearance of the roof is hardly deteriorated and rainwater enters from the gap 52. It becomes difficult to improve the waterproofness of the roof. In this way, a plurality of water-side roof panels 20 are installed side by side in the horizontal direction. As shown in FIG. 6, the packing 11 is sandwiched between the laying side end portion 7 of the first waterside roof panel 201 and the covering side end portion 6 of the second waterside roof panel 202.

  As described above, after the water-side roof panel 30 and the water-side roof panel 20 are installed, the release film 163 is removed from the flexible packing 161. Thereby, the waterproofness can be improved by bringing the flexible packing 161 and the back surface of the connection portion 21 into close contact with each other. When removing the release film 163, as shown in FIG. 7B, when installing the water-side roof panel 20, a part of the release film 163 is removed from the gap between the connection portion 21 and the joint portion 31 that overlap the front and back. It is pulled out below the tips 211 and 212 of the 21. Then, after the water-side roof panel 30 and the water-side roof panel 20 are installed, a part of the pulled-out release film 163 is pulled so that the entire release film 163 is pulled out.

  After removing the release film 163 as described above, the water-side roof panel 30 and the water-side roof panel 20 are fixed to the roof base material 50 with a plurality of fixtures (texts, screws, nails, etc.) 55. . The plurality of fixtures 55 are driven into the roof base material 50 through the mountain portion 5. In addition, the other plurality of fixing tools 55 are driven into the roof base material 50 through the covering piece 8 and the connecting portion 10 covered with the covering piece 8. The plurality of fixtures 55 are driven into the portion immediately above the water of the flexible packing 161. The other plurality of fixtures 55 are driven into the water-side portion of the inflatable packing 162. Further, a washer 56 may be provided on the surface of the mountain portion 5 or the surface of the covering piece 8 at the driving position of the fixing tool 55. Further, the inflatable packing 162 gradually expands after fixing the water-side roof panel 30 and the water-side roof panel 20 with the fixture 55, and part of the gap between the connecting portion 21 and the joint portion 31 that overlaps the front and back. To fill.

  This Embodiment is related with the connection structure of the roof panel 1 adjacent in the inclination direction of a roof. The roof panel 1 disposed above in the inclination direction of the roof has a connecting portion 21 projecting from the lower end thereof. The upper end portion of the roof panel 1 disposed below in the inclination direction of the roof is formed as a joint portion 31. A waterproof packing 16 is provided on the surface of the joint portion 31. The connecting portion 21 is disposed on the surface of the joint portion 31 with the back surface thereof being in close contact with the waterproof packing 16. The waterproof packing 16 is formed of a flexible packing 161 and an inflatable packing 162. In such a connection structure of the roof panel 1, the waterproofness of the connection portion of the roof panel 1 adjacent in the inclination direction of the roof is improved by the flexible packing 161 and the inflatable packing 162. For this reason, there is almost no sealing other than the waterproof packing 16, and the work of construction for obtaining waterproofness can be reduced. Therefore, it has become possible to provide a construction method that can greatly improve workability and water-stopping (waterproofness), reduce the construction cost, and improve the design.

  Further, the flexible packing 161 is made of non-vulcanized butyl rubber or the like and is very flexible so that it is provided in the gap between the connection portion 21 and the joint portion 31 and is fixed to the roof panel 1 with a fixture. , The flexible packing 161 having high flexibility can be made to follow the shape of the gap between the connection portion 21 and the joint portion 31, and the connection portion 21 and the joint portion 31 can be obtained by the self-adhesive force of the flexible packing 161. Can be adhered with almost no gap. For this reason, it becomes possible to omit the sealing material used in combination with the sealing tape, and the flexible packing 161 can sufficiently follow the movement of the panel of the roof panel 1 due to thermal expansion and contraction without breaking. It is possible to maintain the water stop performance of the connection portion (vertical joint portion) between the connection portion 21 and the joint portion 31.

  Further, the inflatable packing 162 inserted on the water side gradually expands with the passage of time, and can almost close the gap between the connection portion 21 and the joint portion 31, and is about several times the initial thickness. It became possible to adjust to the gap between the connection portion 21 and the joint portion 31 generated at the connection portion in the vertical direction of the roof panel 1 and to close this gap almost completely.

  In the present embodiment, since the inflatable packing 162 is disposed above the flexible packing 161, the water-side gap between the connecting portion 21 and the joint portion 31 can be reliably reduced by the inflatable packing 162. The waterproofness of the connection part of the roof panel 1 can be improved.

  Moreover, in this Embodiment, since the notch part 105 is formed in the lower end part of the surface metal shell 3 in one roof panel 1 among the roof panels 1 adjacent in the direction orthogonal to the inclination direction of the roof, The overlapping of the metal shell 3 can be reduced. Moreover, since the notch part 105 is covered with the lower end part of the surface metal shell 3 of the other roof panel 1, the notch part 105 becomes difficult to see and the appearance of the roof is difficult to deteriorate. Moreover, since the lower end of the adjacent roof panel 1 is aligned on the straight line in the direction orthogonal to the inclination direction of a roof, the external appearance of a roof does not fall easily.

DESCRIPTION OF SYMBOLS 1 Roof panel 16 Waterproof packing 161 Flexible packing 162 Expandable packing 21 Connection part 31 Joint part

Claims (2)

  A connection structure of roof panels adjacent to each other in a roof inclination direction, and a roof panel arranged upward in the roof inclination direction has a connecting portion projecting at a lower end thereof and arranged downward in the roof inclination direction. The roof panel has an upper end formed as a joint, a waterproof packing is provided on the surface of the joint, and the connection part is disposed on the surface of the joint with the back surface closely attached to the waterproof packing. A roof panel connection structure characterized in that the packing is formed of a flexible packing and an inflatable packing.   The said expandable packing is arrange | positioned above the said flexible packing, The connection structure of the roof panel of Claim 1 characterized by the above-mentioned.

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