JP2010275773A - Outdoor panel structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor panel structure of a building with a waterproof sheet welded in a joint part between adjacent waterproof panels, which, even when solvent steam is generated, can suppresses the occurrence of inconvenience such as dissolution or deformation of a heat insulating material caused by it. <P>SOLUTION: A roof panel 10 is provided with a sheathing roof board 11, the heat insulating material 12, a plurality of noncombustible steel plates 13, and the belt-like waterproof sheet 15. The heat insulating material 12 is installed on the sheathing roof board 11, and the noncombustible steel plates 13 are arranged over the heat insulating material 12 in the same plane. The belt-like waterproof sheet 15 is arranged along the joint part between the adjacent noncombustible steel plates 13. The two noncombustible steel plates 13 adjacent to each other are arranged across a predetermined space C, and the waterproof sheet 15 is joined on the panel surface by welding in such a state as to overlap both of the noncombustible steel plates 13. A joint tape 17 having solvent resistance is attained to the joint part of the noncombustible steel plates 13 across the adjacent noncombustible steel plates 13. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outdoor panel structure used for a flat roof or a balcony floor in a building.

  As this type of prior art, for example, in the outdoor waterproof floor structure of a building in Patent Document 1, a waterproof panel is laid on the ALC flooring, and a strip-shaped waterproof sheet is provided on the joint portion of the adjacent waterproof panel, The heat insulating material which comprises a waterproof panel is stuck through the ALC flooring and the adhesive agent.

  In addition, a technique for joining a waterproof sheet provided on a joint portion of the waterproof panel to the surface of the waterproof panel by welding is generally known.

Japanese Patent Laid-Open No. 11-229488

  However, when the waterproof sheet is joined to the surface of the waterproof panel by welding as described above, when the panel temperature rises due to strong sunlight, etc. in fine weather, the welding agent is volatilized, so that it is provided over the waterproof panel. The problem that a heat insulating material etc. melt | dissolve or deform | transforms arises. According to the inventor's insight, since the boiling point of tetrahydrofuran generally contained as a composition of the welding agent is about 65 ° C., when the panel temperature becomes high, solvent vapor (vaporized solvent generated by vaporization) is likely to occur. It is considered that the solvent vapor is diffused over a wide range to cause melting or deformation of the heat insulating material or the like.

  A joint tape made of craft tape may be attached to the joints of the waterproof panel during construction of the roof, etc. This is a simple way to prevent the liquid welding agent from flowing into the joints. This is a measure, and when solvent vapor is generated due to a temperature rise or the like after the construction, the heat insulating material or the like is dissolved or deformed. For example, it is also conceivable that the solvent vapor enters the heat insulating material due to the joint tape being peeled off by heat or the like. It is also conceivable that the solvent vapor enters the heat insulating material through the joint tape.

  INDUSTRIAL APPLICABILITY In the outdoor panel structure of a building in which a waterproof sheet is welded to a joint portion between adjacent waterproof panels, even if solvent vapor is generated, it is possible to suppress the occurrence of problems such as melting and deformation of a heat insulating material and the like due to the solvent vapor. This is the main purpose.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  1st invention is equipped with the several waterproof panel arrange | positioned on the same plane, and the waterproof sheet arrange | positioned covering the joint part between adjacent waterproof panels, The said waterproof sheet by welding on the surface of the said waterproof panel Is an outdoor panel structure of a building to be joined, and the waterproof panel and the waterproof sheet welded portion and a waterproof member at a position where the lower layer member provided on the opposite side of the welded portion in the plurality of waterproof panels is shielded. A solvent-resistant sheet having a solvent property is attached.

  According to the above configuration, the welded portion of the waterproof panel and the waterproof sheet, and the opposite side of the welded portion in the plurality of waterproof panels (that is, the panel surface side of the waterproof panel on which the waterproof sheet is not welded) Since the space between the lower layer member and the lower layer member is blocked by the solvent-resistant sheet, even if the welding agent volatilizes due to an increase in the panel temperature or the like and the solvent vapor is generated, the solvent vapor enters the opposite side of the welded portion. This can be suppressed. Thereby, melt | dissolution and deformation | transformation of the heat insulating material and base material as a lower layer member provided in piles on a waterproof panel can be suppressed. For example, an aluminum sheet may be used as the solvent resistant sheet.

  In 2nd invention, the said solvent-resistant sheet | seat is affixed on the panel surface edge part to the welding side panel surface of the said waterproof panel, and a panel inner side (namely, panel center side) rather than the solvent-resistant sheet | seat The waterproof sheet is welded so as to cover the solvent-resistant sheet as a welded portion.

  According to the above configuration, the area to which the waterproof sheet is attached is secured on the welding side panel surface of the waterproof panel (the panel surface on which the waterproof sheet is welded between the front and back surfaces of the waterproof panel), and the solvent resistance is further improved. The waterproof sheet is disposed in a state where the sheet is completely covered. Thereby, a solvent-resistant sheet can be suitably arranged between the waterproof panel and the waterproof sheet. Further, the solvent resistant sheet can be stored inside the waterproof sheet without being exposed to the outside.

  In 3rd invention, the said solvent-resistant sheet | seat is affixed ranging over the adjacent waterproof panel. Thereby, in the joint part between adjacent waterproof panels, passage of the solvent vapor | steam to the lower layer member side can be suppressed reliably.

  In a fourth invention, in the third invention, the solvent-resistant sheet is waterproof. For example, during rainy weather, it is considered that the installation work of the waterproof panel and the waterproof sheet is performed at the construction site of the building, but the welding work may not be performed. In this regard, if a solvent-resistant sheet is attached across adjacent waterproof panels and the solvent-resistant sheet has waterproof properties, the welding of the waterproof sheet to the waterproof panel is not completed ( The outdoor panel can be waterproofed (even before welding).

  5th invention is the outdoor panel structure where the said waterproof panel is fixed to the said lower layer member by fixing members, such as a screw, The hole part which attaches the said fixing member is formed in the said waterproof panel, and the hole part is plugged up In this way, the solvent resistant sheet is attached. Thereby, the passage of the solvent vapor can be suppressed even in the hole where the fixing member is attached.

  In 6th invention, the adjacent waterproof panel is arrange | positioned so that edge parts may overlap, and the said solvent-resistant sheet | seat is provided between the overlapping parts of the said adjacent waterproof panel. In this case, the passage of the solvent vapor in the gap between the overlapping portions of the waterproof panel can be suppressed.

  In addition, in the overlapping part of the waterproof panel, one waterproof panel which is the lower side (lower layer member side) is fixed by a fixing member such as a screw, and the other waterproof panel is placed on the fixing member (for example, on the screw head). It is good that it is the structure by which is superimposed. This can prevent the fixing member from falling off.

  According to a seventh aspect of the present invention, in the sheet welded portion of the joint portion, the first welded portion which is a welded portion with one waterproof panel is welded in advance before being brought into the construction site, and is a welded portion with the other waterproof panel. A 2nd welding part is related with the outdoor panel structure welded on a construction site. And the said solvent-resistant sheet | seat is affixed on the surface of the waterproof panel in which the welding operation is performed in the said construction site in the position of the panel edge part side rather than the said 2nd welding part.

  In short, at the welding location between the waterproof panel and the waterproof sheet, the solvent vapor is likely to be generated until a predetermined number of days elapses after the welding operation is performed, but the solvent vapor is less likely to be generated after the predetermined number of days elapses. Therefore, as described above, there are a first welded portion where welding is performed in advance before delivery to the construction site and a second welded portion where welding is performed at the construction site (that is, welding at the first and second welded portions). It is considered that solvent vapor is unlikely to be generated in the former first welded portion, but solvent vapor is likely to be easily generated in the latter second welded portion. Therefore, the diffusion of the solvent vapor can be suitably suppressed by installing the solvent resistant sheet at least on the second welded portion side. In this case, it is not necessary to install a solvent-resistant sheet on the first welding part side, and by eliminating the installation of the solvent-resistant sheet on the first welding part side, the configuration is simplified and the material cost is reduced. Further, it is possible to simplify the sheet pasting operation.

  In an eighth aspect of the invention, the solvent-resistant sheet has a waterproof panel side and a waterproof sheet side on which both surfaces are attached. In this case, even if the solvent resistant sheet does not straddle the adjacent waterproof panel, in other words, even if the solvent resistant sheet is provided only on the second welded portion side by using both surfaces of the solvent resistant sheet as the pasting surface. The solvent vapor can be reliably prevented from entering the joint portion.

Sectional drawing which shows the cross-section of a roof panel. The perspective view of a roof panel. The figure for demonstrating the construction procedure of the roof panel in a building construction site. The figure which shows the cross-section of the roof panel in other embodiment. The figure which shows the cross-section of the roof panel in other embodiment. The figure which shows the cross-section of the roof panel in other embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In this embodiment, the outdoor panel structure of the present invention is embodied for a roof panel provided on a roof base material of a flat roof type building. FIG. 1 is a cross-sectional view showing a cross-sectional structure of a roof panel, and FIG. 2 is a perspective view of the roof panel.

  The roof panel 10 is installed on a base plate 11 installed on a roof base material (roof frame such as a roof beam) (not shown), a heat insulating material 12 installed on the base plate 11, and further thereon. A non-combustible steel plate 13. The field board 11 is made of, for example, plywood or ALC (lightweight concrete), and the heat insulating material 12 is made of, for example, foamable resin (for example, polystyrene foam). The non-combustible steel plate 13 is composed of a metal plate coated with a water resistant material. Specifically, a vinyl chloride coated steel plate (vinyl chloride steel plate) formed by applying a resin such as polyvinyl chloride to the metal plate. It is comprised by. The non-combustible steel plate 13 is installed with the vinyl chloride layer facing upward. In this embodiment, the base plate 11 and the heat insulating material 12 correspond to a lower layer member, and the non-combustible steel plate 13 corresponds to a waterproof panel.

  The non-combustible steel plate 13 has a rectangular flat plate shape, and a plurality of non-combustible steel plates 13 are laid on the same plane so as to cover the entire heat insulating material 12. A screw mounting hole 13a with counterbore is formed at an end of the incombustible steel plate 13 at a predetermined interval along the edge direction, and a tapping screw 14 as a fixing member is formed at the position where the screw mounting hole 13a is formed. Thus, the incombustible steel plate 13 is fixed to the base plate 11 (see FIG. 2). In the non-combustible steel plate 13, a screw mounting hole 13a is formed only on one side of two opposing sides, and screw fixing is performed in the screw mounting hole 13a.

  Note that other members such as a nail can be used as the fixing member. Moreover, it is also possible to employ a configuration in which the non-combustible steel sheet 13 is bonded to the heat insulating material by adhesion without using a fixing member such as the tapping screw 14.

  The upper surface of the incombustible steel sheet 13 is the outer surface (roof surface) of the roof panel 10, and in order to ensure the waterproofness of the roof surface, a belt-shaped waterproof sheet 15 is installed at the joint portion between the adjacent incombustible steel sheets 13. Yes. The waterproof sheet 15 is made of a soft vinyl chloride sheet. Here, the two adjacent non-combustible steel plates 13 are arranged with a predetermined gap C therebetween, and the waterproof sheet 15 is joined to the panel surface by welding in a state of being overlapped with both of the non-combustible steel plates 13. For the welding, a welding agent containing tetrahydrofuran as a composition is used, and the waterproof sheet 15 is welded to the incombustible steel sheet 13 at the long side portion of the sheet (near both edges in the longitudinal direction). In addition, since each incombustible steel plate 13 is arranged with a predetermined gap C therebetween, the deformation of the incombustible steel plate 13 due to thermal expansion can be absorbed.

  On the upper panel surface of the incombustible steel sheet 13, a waterproof sheet 15 is welded to a portion (a portion excluding a region where a joint tape 17 to be described later is attached) spaced from the panel end by a predetermined dimension. The welded portions of the waterproof sheet 15 are sheet welded portions Y1 and Y2. Speaking of the positional relationship with the screw mounting portion, the sheet welded portion Y1 is located on the panel inner side (panel center side) from the screw mounting hole 13a. Of the sheet welded portions Y1 and Y2, one sheet welded portion Y1 is a first welded portion that is welded in advance before being brought into the construction site, and the other sheet welded portion Y2 is a second welded portion that is welded at the construction site. It has become.

  Moreover, since tetrahydrofuran used as a welding agent has a boiling point of about 65 ° C., when the roof surface is irradiated with strong sunlight in fine weather, the temperature of the roof panel 10 rises, and solvent vapor is generated due to volatilization. There is a concern that the solvent vapor may cause dissolution (erosion) or deformation of the heat insulating material 12. In particular, considering the tendency of global warming in recent years, there is a great concern about the generation of such solvent vapor and the problems associated therewith. Therefore, in the present embodiment, a joint tape 17 made of a solvent-resistant sheet is attached to a joint portion between adjacent incombustible steel plates 13, and the joint tape 17 welds the incombustible steel plate 13 and the waterproof sheet 15 (sheet weld portion Y1). , Y2) and the heat insulating material 12 are blocked.

  The joint tape 17 has a width dimension larger than the width dimension of the gap C between the non-combustible steel plates 13 and is attached in a state of being overlapped with each end portion of the adjacent non-combustible steel plates 13. The waterproof sheet 15 is welded so as to completely cover the joint tape 17 from above. The joint tape 17 is waterproof in addition to solvent resistance, and is made of, for example, an aluminum tape made of an aluminum alloy. In addition, as the joint tape 17, a resin-based tape member having solvent resistance can be used. Moreover, the joint tape 17 is affixed so that it may straddle the incombustible steel plate 13 adjacent, and may block | close the screw attachment hole 13a.

  The joint tape 17 is affixed to the surface of the incombustible steel plate 13 with a waterproof double-sided tape. However, the double-sided tape only needs to have a waterproof effect in a period after the sheet welding operation until the melting action of the welding agent does not occur. The welding agent does not cause a melting action within several days after the welding operation.

  According to the roof panel 10 having the above-described configuration, since the belt-shaped waterproof sheet 15 is welded along the joint portions of the plurality of incombustible steel plates 13, the roof panel 10 can have a waterproof performance suitable for the roof panel 10. Moreover, since the joint tape 17 which consists of a solvent-resistant sheet | seat is affixed on the joint part between adjacent incombustible steel plates 13, even if solvent vapor | steam generate | occur | produces in sheet | seat welding part Y1, Y2, the solvent vapor | steam heat-insulates. Intrusion into the material 12 side can be suppressed. Thereby, melt | dissolution and deformation | transformation of the heat insulating material 12 can be suppressed.

  Next, the construction procedure of the roof panel 10 at the building construction site will be described with reference to FIG.

  First, a plurality of non-combustible steel plates 13 are laid side by side on the heat insulating material 12 in a state where the base plate 11 and the heat insulating material 12 are installed on the roof base material (roof beam, etc.) of the building. At this time, as shown in FIG. 3A, one side of the incombustible steel plate 13 (one side of the surrounding four sides) has a part protruding from the incombustible steel plate 13, that is, an unwelded surplus portion. In this state, the waterproof sheet 15 is welded in advance. The welding of the waterproof sheet 15 to the incombustible steel sheet 13 is carried out at the factory before transporting to the construction site, and is carried into the construction site with the waterproof sheet 15 welded to one side of the incombustible steel sheet 13. ing.

  A plurality of non-combustible steel plates 13 are laid on the heat insulating material 12 so that a panel end portion to which the waterproof sheet 15 has already been welded and a panel end portion to which the waterproof sheet 15 has not been welded face each other. (FIG. 3B). At this time, the non-combustible steel plate 13 is fixed by the tapping screw 14.

  Thereafter, as shown in FIG. 3 (c), the joint tape 17 is attached with a double-sided tape so as to straddle the adjacent non-combustible steel plates 13 and close the screw attachment holes 13a.

  Here, for example, in rainy weather, the work is performed from the installation of the base plate 11 to the application of the joint tape 17, but the welding work of the waterproof sheet 15 (the welding work of the unwelded portion) may not be performed. (Welding work cannot be performed in rainy weather). In this case, since the welding of the waterproof sheet 15 has not been completed, there is a concern about the intrusion of water from the joint portion of the incombustible steel sheet 13 into the lower structure. In this regard, in this embodiment, the joint tape 17 is waterproof, so that the roof panel 10 can be provided with a primary waterproof function even if the welding operation is incomplete.

  After pasting the joint tape 17, as shown in FIG. 3 (d), the protruding portion (unwelded surplus portion) of the waterproof sheet 15 is welded to the non-combustible steel plate 13 on the welding partner side. At this time, a welding operation is performed by applying a welding agent to the surface of the incombustible steel sheet 13. The construction of the roof panel 10 shown in FIGS. 1 and 2 is completed by the series of operations described above.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  In the roof panel structure of the building, since the joint tape 17 made of a solvent-resistant sheet is attached to the joint portion between the adjacent incombustible steel plates 13, the solvent vapor generated in the sheet welded portions Y1 and Y2 is on the heat insulating material 12 side. Can be prevented from entering. Thereby, melt | dissolution and deformation | transformation of the heat insulating material 12 can be suppressed.

  The joint tape 17 is affixed to each end part of the adjacent incombustible steel sheet 13, and the waterproof sheet 15 is welded so as to completely cover the joint tape 17 from above. In this case, a bonding area of the joint tape 17 is secured on the upper surface side of the incombustible steel plate 13. Thereby, the joint tape 17 can be suitably arranged between the incombustible steel plate 13 and the waterproof sheet 15. Further, the joint tape 17 can be stored inside the waterproof sheet 15 without being exposed to the outside.

  Since the joint tape 17 is affixed so as to straddle the adjacent incombustible steel plates 13 and close the screw attachment holes 13a, the passage of the solvent vapor in the joint portions of the incombustible steel plates 13 and the screw attachment holes 13a is ensured. Can be suppressed. Therefore, it is possible to realize a more preferable configuration in suppressing the melting and deformation of the heat insulating material 12.

  Since the joint tape 17 is waterproof in addition to solvent resistance, the installation work of the non-combustible steel sheet 13 and the like is performed in the rainy weather etc., but the welding work of the waterproof sheet 15 is not performed. That is, even if the waterproof sheet 15 remains unwelded, the roof panel 10 can have a primary waterproof function.

  In the welded portions Y1 and Y2 between the adjacent incombustible steel sheet 13 and the waterproof sheet 15, one sheet welded portion Y1 is welded in advance before being brought into the construction site, and the other sheet welded portion Y2 is welded at the construction site. Therefore, each waterproof sheet 15 is welded at two locations, and the welding work at the construction site is only required at one location. Thereby, simplification of the welding operation at the construction site can be achieved.

  Since the joint tape 17 is affixed to the non-combustible steel plate 13 with a waterproof double-sided tape, it is possible to suppress intrusion of water or a welding agent (liquid agent) into the heat insulating material 12 before the waterproof sheet 15 is welded. In addition, this double-faced tape maintains a waterproof effect in a period after the sheet welding operation until at least the melting action of the welding agent does not occur, and in a few days after the welding operation, a desired heat insulating material 12 is obtained. The protective effect can be sustained.

[Other Embodiments]
The present invention is not limited to the description of the above embodiment, and may be implemented as follows, for example.

  In the above embodiment, as shown in FIG. 1, the joint tape 17 is attached so as to straddle adjacent non-combustible steel plates 13, but this may be changed as shown in FIG. 4. In FIG. 4, among the sheet welded portion Y1 that is welded in advance before delivery to the construction site and the sheet welded portion Y2 that is welded at the construction site, only the latter sheet welded portion Y2 side is used as a solvent resistant sheet. The joint tape 21 is affixed. More specifically, in the non-combustible steel plate 13 on the right side of FIG. The joint tape 21 has upper and lower surfaces (both surfaces on the non-combustible steel sheet 13 side and the waterproof sheet 15 side) as attachment surfaces, and the upper and lower surfaces are respectively attached with double-sided tape.

  Even if it is the said structure, it can suppress that solvent vapor | steam penetrate | invades into the heat insulating material 12 side, and can melt | dissolve and deform | transform the heat insulating material 12. In this configuration, a desired effect can be obtained regardless of the configuration in which the joint tape 21 is provided only on one side of the two sheet welded portions Y1 and Y2. This is due to the following reason.

  In the welding location of the non-combustible steel sheet 13 and the waterproof sheet 15, after the welding operation is performed, the solvent vapor is likely to be generated until a predetermined number of days elapses, but the solvent vapor is less likely to be generated after the predetermined number of days elapses. Therefore, in the sheet welded portion Y1 where welding is performed in advance before being brought into the site, solvent vapor is hardly generated at the time of roof construction, whereas in the sheet welded portion Y2 where welding is performed at the construction site, roof construction is performed. It is assumed that solvent vapor is likely to be generated later. In this case, the diffusion of the solvent vapor can be suitably suppressed by installing the joint tape 21 on the sheet welded portion Y2 side. By eliminating the installation of the joint tape 21 on the sheet welded portion Y1 side, the configuration can be simplified, the material cost can be reduced, and the sheet attaching operation can be simplified.

  Since the joint tape 21 has both the non-combustible steel sheet 13 side and the waterproof sheet 15 side attached to each other, even if the joint tape 21 does not straddle the adjacent non-combustible steel sheet 13, in other words, the sheet welded portion Y2 side. Even if it is provided only on the surface, it is possible to reliably suppress the penetration of the solvent vapor into the joint portion.

  -It is good also as a structure which arrange | positions the adjacent incombustible steel plate 13 so that edge parts may overlap, and provides the joint tape as a solvent-resistant sheet in the overlap part of the adjacent incombustible steel plate 13. FIG. Specifically, in FIG. 5A, end portions of adjacent non-combustible steel plates 13 are overlapped to form an overlapping portion K. In this case, one non-combustible steel plate 13 is fixed with a tapping screw 14 and the other non-combustible steel plate 13 is arranged with its end portion overlapped on the head of the tapping screw 14. And the joint tape 22 as a solvent-resistant sheet is provided in the state straddling the two incombustible steel plates 13 in the overlapping part K of the incombustible steel plates 13.

  Further, in FIG. 5 (b), as a difference from FIG. 5 (a), a joint tape 23 as a solvent resistant sheet is provided in a state of being sandwiched between two incombustible steel plates 13 in the overlapping portion K of the incombustible steel plates 13. It has been.

  According to each structure of FIG. 5 (a), (b), passage of solvent vapor | steam can be suppressed in the overlap part K of the noncombustible steel plate 13. FIG. In addition, in the overlap part K of the noncombustible steel plate 13, it has the structure by which the another noncombustible steel plate 13 is piled up on the tapping screw 14 which fixes the noncombustible steel plate 13 of the lower side (heat insulating material 12 side). Thereby, the falling off of the tapping screw 14 can be prevented.

  -Another structural example is demonstrated about the cross-sectional structure of a roof panel using FIG. 6 (a) and 6 (b), in the non-combustible steel plates 13 that are adjacent to each other with a predetermined gap, the one non-combustible steel plate 13 side is on the upper side, and the other non-combustible steel plate 13 side is on the lower side. Joint tapes 24 and 25 as adhesive sheets are provided. The difference between FIGS. 6A and 6B is that, in the non-combustible steel sheet 13 to be screwed, a joint tape is applied to the side opposite to the heat insulating material 12 (upper side of the non-combustible steel sheet 13), or The joint tape is applied to the same side (the lower side of the non-combustible steel plate 13).

  Moreover, in FIG.6 (c), the joint tape 26 as a solvent resistant sheet is provided under the adjacent incombustible steel plate 13 (namely, heat insulating material 12 side). Furthermore, in FIG.6 (d), the insulating sheet 27 as a solvent resistant sheet is provided under the adjacent incombustible steel plate 13 (namely, heat insulating material 12 side). The insulating sheet 27 is provided over almost the entire surface of the incombustible steel plate 13. In any case, the point is that the solvent-resistant sheet may be provided at a position where the sheet welded portion and the heat insulating material 12 on the opposite side of the welded portion are blocked.

  -You may change the structure by which a heat insulating material is provided as a lower layer member in the lower side (back side) of the noncombustible steel plate 13 as a waterproof panel, for example, an airtight sheet | seat which has airtightness may be provided as a lower layer member. In this case, dissolution of the airtight sheet can be suppressed by applying the above configuration.

  -A waterproof sheet is not restricted to what is strip | belt shape, It may be provided so that it may overlap with the substantially whole surface of the noncombustible steel plate 13 as a waterproof panel. Also in this case, it is sufficient that the solvent-resistant sheet is attached to a position where the space between the sheet welded portion and the heat insulating material as the lower layer member is blocked.

  In the above-described embodiment, the configuration in which the welding agent containing tetrahydrofuran is used as the composition has been described. However, other welding agents can be used. In this case, if a vinyl chloride material is to be welded, a tetrahydrofuran-containing welding agent may be used, and if an acrylic material is to be welded, a methylene-based welding agent may be used.

  -The solvent-resistant sheet (joint tape) may be provided with a position fixing means for fixing the position with respect to the waterproof panel (non-combustible steel plate). For example, a convex portion (or a step portion) may be formed on the contact surface side of the solvent resistant sheet that contacts the waterproof panel, and the convex portion may be engaged with a gap between adjacent waterproof panels. Thereby, the position fixing of the solvent resistant sheet is ensured.

  Moreover, an inclined surface which inclines toward the panel edge part (joint part) may be provided in each adjacent waterproof panel, and a solvent-resistant sheet | seat may be comprised by the shape which fits the inclined surface. In this case, the closer to the panel edge, the thinner each waterproof panel, and on the other hand, the sheet thickness of the solvent resistant sheet is preferably increased.

  -Although the said embodiment demonstrated the outdoor panel structure applied to the roof of a building, application other than a roof is also possible. For example, application to a balcony floor is possible. In the case of a balcony floor, since it is generally provided adjacent to a window glass in a sweep window or the like, it is considered that the temperature rise of the floor surface becomes remarkable due to the reflection of sunlight from the window glass. In recent years, in particular, high thermal insulation glass (such as Low-E multi-layer glass) is sometimes used as the window glass. By using this high thermal insulation glass, the temperature rise of the balcony floor surface is more likely to occur. In this regard, by applying the present invention as a balcony floor structure, even if the temperature of the balcony floor rises, it is possible to suppress the occurrence of problems such as melting and deformation of the heat insulating material due to the generation of solvent vapor.

  In addition, the present invention can also be applied to an outdoor panel structure provided to be inclined with respect to a horizontal plane and an outdoor panel structure (wall panel structure) provided in a vertical direction.

  DESCRIPTION OF SYMBOLS 10 ... Roof panel, 11 ... Field plate (lower layer member), 12 ... Heat insulation material (lower layer member), 13 ... Non-combustible steel plate (waterproof panel), 13a ... Screw attachment hole (hole), 14 ... Tapping screw (fixing member) , 15 ... waterproof sheet, 17, 21-26 ... joint tape (solvent resistant sheet), 27 ... insulating sheet (solvent resistant sheet), C ... gap, K ... overlapping part, Y1, Y2 ... sheet welded part.

Claims (8)

A building having a plurality of waterproof panels arranged in the same plane and a waterproof sheet arranged to cover a joint portion between adjacent waterproof panels, and the waterproof sheet is bonded to the surface of the waterproof panel by welding. Outdoor panel structure,
A solvent-resistant sheet having solvent resistance is affixed at a position that blocks between the waterproof panel and the welded portion of the waterproof sheet and a lower layer member provided on the opposite side of the welded portion in the plurality of waterproof panels. The outdoor panel structure of the building, characterized by   The solvent-resistant sheet is attached to an end of the panel surface of the waterproof panel on the welding side panel surface, and the solvent-resistant sheet is formed on the inner side of the panel with respect to the solvent-resistant sheet. The outdoor panel structure of a building according to claim 1, wherein the waterproof sheet is welded so as to cover.   The outdoor panel structure of a building according to claim 1 or 2, wherein the solvent-resistant sheet is pasted over adjacent waterproof panels.   The outdoor panel structure for a building according to claim 3, wherein the solvent-resistant sheet has waterproofness. The waterproof panel is an outdoor panel structure fixed to the lower layer member by a fixing member such as a screw,
5. The building according to claim 1, wherein a hole for attaching the fixing member is formed in the waterproof panel, and the solvent-resistant sheet is attached so as to close the hole. Outdoor panel structure.   6. Adjacent waterproof panels are arranged with their end portions overlapping each other, and the solvent-resistant sheet is provided sandwiched between overlapping portions of the adjacent waterproof panels. Outdoor panel structure of the building. In the sheet welded portion of the joint portion, the first welded portion that is a welded portion with one waterproof panel is welded in advance before being carried into the construction site, and the second welded portion that is a welded portion with the other waterproof panel is It is an outdoor panel structure that is welded at the construction site,
The solvent-resistant sheet is attached to the surface of the waterproof panel on which the welding operation is performed at the construction site, at a position closer to the end of the panel than the second welded portion. The outdoor panel structure of the building described in the section.   The outdoor panel structure for a building according to claim 7, wherein the solvent-resistant sheet has a waterproof panel side and a waterproof sheet side on which both surfaces are attached.

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