Installation methods for building sheathing

Abstract

Provided is an attachment method for a construction-use surface material, with which attachability is excellent and by which it is possible to attach a base material to the construction-use surface material via an adhesive that ensures a prescribed bonding area. Provided is an attachment method for a construction-use surface material, by which a construction-use surface material 10 is attached to a steel base material 40, the method comprising: a temporary fixing step in which a portion of a rear surface 12 of the construction-use surface material 10 is temporarily fixed to an adhesive 80 bonded to an attachment surface 41 of the base material 40; and a permanent fixing step in which a magnetic attraction jig M is brought into contact with a surface 11 opposite to the rear surface 12 of the construction-use surface material 10 and the magnetic attraction jig is moved along the adhesive 80, thereby pulling in the base material 40 via an attraction force F of the magnetic attraction jig M to pressure-bond the base material to the construction surface material 10.

Description

Technical Field

[0001] The present disclosure relates to a method for attaching building facing materials.

Background Art

[0002] Walls such as partition walls and boundary walls in buildings are formed by attaching building facing materials to a plurality of studs (intermediate columns) that are horizontally spaced apart and whose upper and lower ends are supported by upper and lower runners attached to the floor and ceiling. In general, the method of attaching building facing materials to studs is performed using fasteners such as screws, nails, and bolts. However, the method of attachment using fasteners requires time for attachment, and there are problems such as noise during attachment and the occurrence of fastener marks on the surface of the building facing materials, resulting in poor workability.

[0003] Therefore, Patent Document 1 proposes a building facades structure that enables the attachment of building facing materials (here, structural facing materials) to purlins with good workability. This building facades structure has a viscoelastic body disposed between the structural facing material and the purlin, which fixes the structural facing material to the purlin. Since it is often difficult to adhere the structural facing material to the double-sided adhesive tape with high adhesive force by simply pressing the structural facing material against the double-sided adhesive tape, pressure is further applied from the front side of the structural facing material toward the double-sided adhesive tape to adhere the structural facing material to the double-sided adhesive tape with high adhesive force. Here, as a method of applying pressure, an elongated pressing plate is pressed against the position where the double-sided adhesive tape of the structural facing material exists with the longitudinal direction along the vertical direction, and the pressing plate is struck by a striking means. Further, methods such as applying a large force to a roller or the palm of the hand to perform compression are used.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] According to the building surface structure described in Patent Document 1, instead of using fasteners to attach structural surface materials to battens, a viscoelastic material (double-sided adhesive tape) is used to attach the structural surface materials to the battens, resulting in improved workability.

[0006] However, in the method of applying pressure by pressing a backing plate against the location where the double-sided adhesive tape of the structural sheathing is present, the pressing pressure can be dispersed, for example, if the substrate to which the structural sheathing is attached is slightly flexed, which inevitably leads to the need for excessive pressing pressure.

[0007] Furthermore, while it is necessary to secure a predetermined adhesive area when attaching structural sheathing to the battens, the double-sided adhesive tape on the back of the structural sheathing is hidden by the sheathing itself. This makes it difficult to confirm the position of the double-sided adhesive tape, which in turn makes it difficult to press the tape firmly and potentially makes it difficult to secure the predetermined adhesive area.

[0008] The present disclosure aims to provide a method for attaching building sheathing materials, which allows for attachment of building sheathing materials to a substrate material via an adhesive that provides good attachability and ensures a predetermined adhesive area. [Means for solving the problem]

[0009] A method for installing building sheathing according to one aspect of this disclosure is: A method for attaching building sheathing to a steel base material, A temporary fixing step involves temporarily fixing a portion of the back surface of the building surface material to the adhesive bonded to the mounting surface of the base material, The fixing step involves bringing a magnetic suction jig into contact with the surface of the building surface material opposite to the back surface and moving it along the adhesive, thereby using the suction force of the magnetic suction jig to attract the base material and press the building surface material into place.

[0010] Furthermore, methods for attaching building sheathing according to other aspects of this disclosure are: A method for attaching architectural sheathing materials, comprising attaching underlayment sheathing and overlay sheathing materials, to a steel base material, The first fixing step involves fixing the underlayment material to the mounting surface of the aforementioned base material using fasteners, A temporary fixing step involves temporarily fixing a portion of the back surface of the top covering material to the adhesive bonded to the surface of the underlayment material opposite to the back surface facing the mounting surface, The method includes a second fixing step, in which a magnetic suction jig is brought into contact with the surface of the overlay surface material opposite to the back surface, and moved along the adhesive, thereby attracting the base material with the suction force of the magnetic suction jig and pressing the overlay surface material into place.

[0011] Furthermore, methods for attaching building sheathing according to other aspects of this disclosure are: A method for attaching architectural sheathing materials, comprising attaching underlayment sheathing and overlay sheathing materials, to a steel base material, A first temporary fixing step involves temporarily fixing a portion of the back surface of the underlayment material to the adhesive bonded to the mounting surface of the base material, The first fixing step involves bringing a magnetic suction jig into contact with the surface of the underlayment facing material opposite to the back surface, and moving it along the adhesive, thereby using the suction force of the magnetic suction jig to attract the base material and press the underlayment facing material into place. A second temporary fixing step involves temporarily fixing a portion of the back surface of the top covering material to the adhesive adhering to the surface of the underlayment material, The method includes a second fixing step, in which the magnetic suction jig is brought into contact with the surface of the overlay surface material opposite to the back surface, and moved along the adhesive, thereby attracting the base material with the suction force of the magnetic suction jig and pressing the overlay surface material into place. [Effects of the Invention]

[0012] According to the present disclosure, a base material and a building facing material can be attached via an adhesive having good attachability and ensuring a predetermined adhesion area.

Brief Description of the Drawings

[0013] [Figure 1] It is a perspective view showing an example of a partition wall formed by the method for attaching a building facing material according to the first embodiment, and a part of the building facing material is shown broken. [Figure 2] It is a process diagram for explaining the method for attaching a building facing material according to the first embodiment. [Figure 3] Following FIG. 2, it is a process diagram for explaining the method for attaching a building facing material according to the first embodiment. [Figure 4] Following FIG. 3, it is a process diagram for explaining the method for attaching a building facing material according to the first embodiment. [Figure 5] It is a view taken along the arrow V-V of FIG. 4, and is a diagram for explaining a state in which a magnetic field is generated by a magnetic attraction jig and a stud is magnetically attracted. [Figure 6] It is a perspective view showing an example of a partition wall formed by the method for attaching a building facing material according to the second embodiment, and a part of the underlaying facing material is shown broken. [Figure 7] It is a process diagram for explaining the method for attaching a building facing material according to the second embodiment. [Figure 8] Following FIG. 7, it is a process diagram for explaining the method for attaching a building facing material according to the second embodiment. [Figure 9] Following FIG. 8, it is a process diagram for explaining the method for attaching a building facing material according to the second embodiment. [Figure 10] Following FIG. 9, it is a process diagram for explaining the method for attaching a building facing material according to the second embodiment. [Figure 11] It is a perspective view showing an example of a partition wall formed by the method for attaching a building facing material according to the third embodiment, and a part of the underlaying facing material is shown broken. [Figure 12] It is a process diagram for explaining the method for attaching a building facing material according to the third embodiment. [Figure 13] Following FIG. 12, it is a process diagram for explaining a method of attaching a building facing material according to the third embodiment. [Figure 14] Following FIG. 13, it is a process diagram for explaining a method of attaching a building facing material according to the third embodiment. [Figure 15] Following FIG. 14, it is a process diagram for explaining a method of attaching a building facing material according to the third embodiment. [Figure 16] It is a process diagram for explaining a method of attaching a building facing material according to a modification of the third embodiment. [Figure 17] It is an enlarged view of part XVII in FIG. 16, showing a part of the ground base material visible. [Figure 18] It is a perspective view of an example of the ground base material.

Mode for Carrying Out the Invention

[0014] Hereinafter, an example of a method of attaching a building facing material according to each embodiment will be described with reference to the accompanying drawings. In the present specification and drawings, substantially the same components may be denoted by the same reference numerals, and redundant explanations may be omitted.

[0015] [Method of Attaching a Building Facing Material According to the First Embodiment] First, referring to FIGS. 1 to 5, an example of a method of attaching a building facing material according to the first embodiment and an example of a partition wall formed by this attachment method will be described. Here, FIG. 1 is a perspective view showing an example of a partition wall formed by the method of attaching a building facing material according to the first embodiment, and is a view showing a part of the building facing material broken. FIGS. 2 to 4 are process diagrams for explaining the method of attaching a building facing material according to the first embodiment in order, and FIG. 5 is a view taken along the line V-V of FIG. 4, and is a view for explaining a state in which a magnetic field is generated by a magnetic attraction jig and a stud is magnetically attracted.

[0016] The following describes the method of attaching the building panels in each embodiment as a method for forming partition walls. However, the method of attaching the building panels in each embodiment can also be applied to the formation of boundary walls other than partition walls, and can be applied to the formation of ceilings and floors in addition to walls such as partition walls and boundary walls.

[0017] The partition wall 90 shown in Figure 1 is applicable to steel-frame buildings, reinforced concrete (RC) buildings, wooden buildings, etc., and these buildings include not only ordinary detached houses and apartment buildings, but also factories and warehouses.

[0018] The partition wall 90 has multiple studs 40 (an example of a base material) that constitute the main frame, and a lower runner 52 (or floor runner) and an upper runner 51 (or ceiling runner). The studs 40 extend in the vertical direction, and the upper runner 51 and lower runner 52 extend in the horizontal direction.

[0019] Both the upper runner 51 and the lower runner 52 are made of lightweight steel material such as channel steel. The upper runner 51 is attached to the upper floor structure 61 with its opening facing downwards, and the lower runner 52 is attached to the lower floor structure 62 with its opening facing upwards.

[0020] The stud 40 is formed from a lightweight steel channel steel with a lip, but it may also be formed from other materials such as channel steel or square steel pipes.

[0021] The upper end 44 and lower end 45 of each stud 40 are fitted into the upper runner 51 and lower runner 52, respectively, thereby fixing them to the upper runner 51 and lower runner 52. Here, although not shown in the figures, a plurality of horizontally extending braces may be provided at predetermined pitches (for example, 1200 mm pitches) in the height direction of the stud 40.

[0022] The upper runner 51, lower runner 52, and studs 40 are, for example, lightweight steel materials with a thickness of 0.4 mm or more, and steel runners and steel studs specified in JIS A 6517 ("Steel Substrates for Buildings"), or equivalent, compliant, or compatible products thereof can be used. In the partition wall 90, multiple studs 40 are installed between the lower runner 52 and the upper runner 51 at intervals of 606 mm or less (for example, intervals of 606 mm and 455 mm) in the width direction of the wall (the longitudinal direction of the lower runner 52, etc. in Figure 1).

[0023] In the partition wall 90, the vertically positioned building sheathing 10 is attached to a pair of mounting surfaces 41 and 42 of the studs 40. In Figure 1, the building sheathing 10 is shown attached to only one of the mounting surfaces 41 at the front of the paper. The building sheathing 10 may also be attached to the studs 40 in a horizontally positioned manner.

[0024] Building surface materials 10 are formed from gypsum board, calcium silicate board, particleboard, hardboard, plywood, structural plywood, etc. For example, when gypsum board is used, its short side, long side, and thickness are formed from semi-noncombustible material of 910mm x 1820mm x 9.5mm, or noncombustible material of 910mm x 1820mm (2420mm, 2730mm) x 12.5mm (15mm, 21mm, 25mm), etc. In addition to 910mm, the width of gypsum board can also be 606mm, 1000mm, 1220mm, etc. Furthermore, gypsum board includes not only general gypsum board, but also reinforced gypsum board, ordinary hard gypsum board, glass fiber nonwoven fabric gypsum board, glass mat gypsum board, etc.

[0025] Multiple building panels 10 adjacent to each other in the vertical and horizontal directions are butted against each other to form horizontal butt joints 14 and vertical butt joints 15. In the illustrated example, each building panel 10 is arranged such that a vertical butt joint 15 is formed at the center of the mounting surface 41 of the studs 40, with one panel in between. Note that the horizontal butt joints 14 and vertical butt joints 15 may be open joints.

[0026] An adhesive 80 is bonded to the mounting surface 41 of each stud 40 along its longitudinal direction, and the building sheathing material 10 is attached to the mounting surface 41 via the adhesive 80. Building sheathing materials (not shown) can also be attached to the other mounting surfaces 42 in the same manner.

[0027] The adhesive 80 can be an acrylic adhesive, a rubber adhesive, a urethane adhesive, a silicone adhesive, etc., and these may be applied individually or in combination of two or more. Among these, acrylic adhesives are preferred because they have advantages such as excellent transparency, weather resistance, and heat resistance, the ability to design various polymers due to the wide variety of monomers, the ability to control molecular weight and molecular distribution to some extent, and the ability to adjust crosslinking by copolymerizing functional group monomers.

[0028] Here, the adhesive 80 in the illustrated example is a single adhesive layer, but it may also be an adhesive tape or the like, in which adhesive layers are provided on both sides of a support (not shown) in the center.

[0029] In the partition wall 90, when attaching the building sheathing to the studs, the time required for attaching the building sheathing can be shortened and good workability can be achieved by applying adhesive 80 instead of conventional fasteners such as screws. Furthermore, by interposing adhesive 80 between the studs 40 and the building sheathing 10, the viscoelastic properties of the adhesive 80 can dampen deformation (vibration) of the building sheathing 10 in the in-plane and out-of-plane directions caused by traffic vibrations, earthquake vibrations, etc., thereby suppressing damage to the building sheathing 10 and tearing of the sheathing.

[0030] Next, with reference to Figures 2 to 5, a method for attaching the building sheathing 10 that forms the partition wall 90 shown in Figure 1 to the mounting surface 41 of the studs 40 will be described. In the following description, we will take one stud 40 as an example and explain how to attach the building sheathing 10 to the mounting surface 41 of one stud 40. However, in the example shown in Figure 1, the building sheathing 10 will be attached to each of the mounting surfaces 41 of the three studs 40 arranged horizontally using the same method.

[0031] First, as shown in Figure 2, the adhesive 80 is bonded to the mounting surface 41 of the stud 40 along its longitudinal direction.

[0032] The adhesive 80 may be in the form of a roll with a release sheet (not shown) attached to one of the wider surfaces, or in the form of strips. The worker adheres one end of the rolled adhesive 80 to the upper or lower end of the mounting surface 41, and then, while unfolding the adhesive 80, sequentially adheres it toward the other end of the mounting surface 41.

[0033] When the adhesive 80 is adhered to the mounting surface 41, a release sheet (not shown) is attached to the surface of the adhesive 80 (the front side of the paper in Figure 2). When a worker peels off the release sheet (not shown) attached to the surface of the adhesive 80, the surface of the adhesive 80 adhered to the stud 40 is exposed so that it can be used to adhere building materials, as shown in Figure 2. Here, when peeling off the release sheet, the peeling of the release sheet from the adhesive 80 is improved by moving a roller (not shown) along the surface of the release sheet while pressing it down.

[0034] Next, as shown in Figure 3, the building material 10 is aligned with the mounting surface 41 of the stud 40, a portion of the back surface 12 of the building material 10 is adhered to the adhesive 80, and the building material 10 is pressed from the surface 11 toward the back side to adhere.

[0035] Simply pressing the building sheathing material 10 onto the stud 40 via the adhesive 80 may not provide sufficient adhesive strength to attach the building sheathing material 10 to the stud 40.

[0036] For example, if the stud 40 is slightly bent, the pressure applied when pressing the surface 11 of the building sheathing 10 may be dispersed, thus requiring excessive pressure.

[0037] Furthermore, when attaching a portion of the back surface 12 of the building surface material 10 to the mounting surface 41 of the stud 40, it is necessary to secure a predetermined adhesive area. However, because the adhesive 80 is hidden by the building surface material 10 during installation, it is difficult to confirm the position of the adhesive 80, making it difficult to press the adhesive 80 firmly, and as a result, it becomes difficult to secure the predetermined adhesive area.

[0038] Therefore, the mounting shown in Figure 3 is positioned as merely a temporary fixation of the building sheathing material 10 to the mounting surface 41 of the stud 40, and is a temporary fixation performed before permanent fixing (the above is the temporary fixing process).

[0039] After temporarily fixing the building sheathing material 10 to the mounting surface 41 of the stud 40, as shown in Figure 4, a magnetic suction jig M, held by a worker (not shown), is brought into contact with the surface 11 of the building sheathing material 10 and moved along the adhesive 80 in the X direction.

[0040] A handle T is attached to the magnetic attraction jig M, and the worker grasps the handle T to move the magnetic attraction jig M. Here, the illustrated example describes a method of moving the magnetic attraction jig M vertically downward from the top end to the bottom end of the building surface material 10, but the magnetic attraction jig M may also be moved from the bottom end to the top end of the building surface material 10, or it may be moved from the middle to the top end of the building surface material 10 and then from the middle to the bottom end, or so on.

[0041] The magnetic attraction jig M is a permanent magnet, and can be an Alnico magnet, ferrite magnet, neodymium magnet, etc. However, instead of a permanent magnet, a temporary magnet such as an electromagnet may be used.

[0042] As shown in Figure 5, by bringing the magnetic attraction jig M into contact with the surface 11 of the building panel 10, the magnetic field J generated from the magnetic attraction jig M reaches the mounting surface 41 of the steel stud 40 on the back side of the building panel 10, and an attractive force F acting on the mounting surface 41 pulls it toward the magnetic attraction jig M.

[0043] Here, it is desirable that the magnetic attraction jig M has a magnetic specification that generates the necessary attractive force F to sufficiently attract the studs 40 on the back of the building surface material 10, depending on the thickness of the surface material 10.

[0044] The magnetic attraction force F from the magnetic attraction jig M causes the mounting surface 41 of the stud 40 and the back surface 12 of the building sheathing material 10 to be attracted to each other, and the pair of wide surfaces of the adhesive 80 interposed between them are pressed against the mounting surface 41 and the back surface 12. By pressing the pair of wide surfaces of the adhesive 80 in this way, the entire surface of the wide surfaces of the adhesive 80 can be adhered to both the mounting surface 41 and the back surface 12.

[0045] In this way, the mounting surface 41 of the stud 40 is attracted to the back surface 12 of the building surface material 10 and bonded to each other, so that the mounting surface 41 and the back surface 12 are pressed together (or crimped and pressed together) (this concludes the fixing process).

[0046] By using the magnetic attraction force F of the magnetic attraction jig M to pull the stud 40 to the building surface material 10, good adhesion can be achieved even if the stud 40 is slightly bent, and problems such as the dispersion of pressing pressure when pressing the surface 11 of the building surface material 10 do not occur.

[0047] Furthermore, even if the adhesive 80 is hidden by the building surface material 10 during installation, the magnetic attraction force F of the magnetic attraction jig M attracts the stud 40 to the building surface material 10, thereby allowing the mounting surface 41 of the stud 40 and the back surface 12 of the building surface material 10 to be pressed together while ensuring a predetermined adhesive area.

[0048] Furthermore, since fasteners such as screws are not used, the building panel 10 can be installed in a noise-free environment, and the work of filling in screw marks and other fastening marks remaining on the surface 11 of the building panel 10 with putty is eliminated.

[0049] [Method for installing building surface materials according to the second embodiment] Next, with reference to Figures 6 to 10, an example of a method for attaching building sheathing according to the second embodiment and an example of a partition wall formed by this attachment method will be described. Here, Figure 6 is a perspective view showing an example of a partition wall formed by the method for attaching building sheathing according to the second embodiment, and shows a part of the underlayment sheathing cut away. Figures 7 to 10 are, in order, process diagrams illustrating the method for attaching building sheathing according to the second embodiment.

[0050] The partition wall 90A shown in Figure 6 differs from the partition wall 90 in that it uses a double-layered building material 10A, which has an underlayment 20 and an overlayment 30.

[0051] Multiple underlayment panels 20 have their back surfaces 22 horizontally arranged on the mounting surface 41 of multiple studs 40 and are fixed to the mounting surface 41 with screws 70 (an example of fasteners), such as screw screws. Multiple underlayment panels 20 adjacent to each other vertically and horizontally are butted against each other to form horizontal butt joints 24 and vertical butt joints (not shown).

[0052] On the surface 21 of the underlayment panel 20, adhesive 80 is bonded along the longitudinal direction of the mounting surface 41 to the position corresponding to the mounting surface 41 of the stud 40, and the back surface 32 of the overlayment panel 30 is attached to the surface 21 of the underlayment panel 20 via the adhesive 80.

[0053] The top cladding panels 30 are attached to the surfaces 21 of multiple undercladding panels 20 via adhesive 80 located at positions corresponding to the mounting surfaces 41 of the three studs 40, similar to the building cladding panels 10 of the partition wall 90. Multiple top cladding panels 30 adjacent to each other vertically and horizontally are butted against each other to form horizontal butt joints 34 and vertical butt joints 35. Note that the horizontal butt joints 34 and vertical butt joints 35 may be open joints.

[0054] In the partition wall 90A, the top sheathing material 30 is fixed to the surface 21 of the underlayment material 20 via an adhesive 80, which reduces the time required to install the top sheathing material 30 and allows for good workability.

[0055] Furthermore, as shown in detail below for the partition wall 90B, the underlayment sheathing 20 is fixed to the studs 40 with screws 70 instead of adhesive 80. Because the underlayment sheathing 20 is fixed to the studs 40 with screws 70, which have higher fire resistance than adhesive 80, the detachment of the building sheathing 10A from the studs 40 in the event of a fire can be suppressed as much as possible. Here, the illustrated example shows a configuration in which the underlayment sheathing 20 is installed horizontally and the top sheathing sheathing 30 is installed vertically. However, other configurations are also possible, such as a configuration in which the underlayment sheathing 20 is installed vertically and the top sheathing sheathing 30 is installed horizontally, a configuration in which both the underlayment sheathing 20 and the top sheathing sheathing 30 are installed vertically, or a configuration in which both the underlayment sheathing 20 and the top sheathing sheathing 30 are installed horizontally.

[0056] Next, referring to Figures 7 to 10, a method for attaching the building sheathing material 10A that forms the partition wall 90A shown in Figure 6 to the mounting surface 41 of the stud 40 will be described. In the following description, a single stud 40 will be used as an example, and the method of sequentially attaching the underlayment sheathing material 20 and the overlayment sheathing material 30 to the mounting surface 41 of a single stud 40 will be described. In the example shown in Figure 6, the underlayment sheathing material 20 will be attached to each mounting surface 41 of, for example, five studs 40 arranged horizontally, using the same method, and the overlayment sheathing material 30 will be attached to positions corresponding to each mounting surface 41 of, for example, three studs 40 arranged horizontally. Furthermore, the underlayment sheathing material 20 and the overlayment sheathing material 30 may both be made of gypsum board or gypsum board, or one may be made of gypsum board or gypsum board and the other of calcium silicate board, etc.

[0057] First, as shown in Figure 7, the back surfaces 22 of the multiple horizontally arranged underlayment panels 20 are aligned with the mounting surface 41 of the stud 40, and the panels are fixed in place by driving multiple screws 70 (five in the illustrated example) into the surface 21 of each underlayment panel 20 (first fixing step).

[0058] Next, as shown in Figure 8, adhesive 80 is applied to the surface 21 of the underlayment material 20 at a position corresponding to the mounting surface 41 of the stud 40, along the longitudinal direction of the mounting surface 41.

[0059] Next, as shown in Figure 9, the top covering material 30 is aligned with the mounting surface 41 of the stud 40, a portion of the back surface 32 of the top covering material 30 is bonded to the adhesive 80, and the top covering material 30 is bonded by pressing it from the surface 31 toward the back side (temporary fixing step).

[0060] After temporarily fixing the top covering material 30 to the surface 21 of the underlayment material 20, as shown in Figure 10, a magnetic suction jig M, held by a worker (not shown), is brought into contact with the surface 31 of the top covering material 30 and moved in the X direction along the adhesive 80.

[0061] By moving the magnetic attraction jig M, the suction force F of the magnetic attraction jig M pulls the mounting surface 41 of the stud 40 toward the upper facing material 30, and the surface 21 of the under facing material 20 and the back surface 32 of the upper facing material 30, which are attracted to each other, press against the pair of wide surfaces of the adhesive 80 interposed between them. By pressing the pair of wide surfaces of the adhesive 80 against the surface 21 and back surface 32 in this way, the entire area of ​​the wide surfaces of the adhesive 80 is pressed against both the surface 21 and back surface 32 (second fixing step).

[0062] By using a magnetic attraction jig M to attract the studs 40 to the top covering material 30 with an attractive force F, good adhesion between the underlayment material 20 and the top covering material 30 can be achieved. Furthermore, even if the adhesive 80 is hidden by the top covering material 30 during installation, by using the magnetic attraction jig M to attract the studs 40 to the top covering material 30 with an attractive force F, the surface 21 of the underlayment material 20 and the back surface 32 of the top covering material 30 can be pressed together while ensuring a predetermined adhesive area.

[0063] [Method for installing building surface materials according to the third embodiment] Next, with reference to Figures 11 to 15, an example of a method for attaching building sheathing according to the third embodiment and an example of a partition wall formed by this attachment method will be described. Here, Figure 11 is a perspective view showing an example of a partition wall formed by the method for attaching building sheathing according to the third embodiment, and shows a part of the underlayment sheathing cut away. Figures 12 to 15 are process diagrams illustrating the method for attaching building sheathing according to the third embodiment, in order.

[0064] The partition wall 90B shown in Figure 11 differs from the partition wall 90A in that it uses a double-layered building sheathing material 10A, which has an underlayment material 20 and an overlayment material 30, and the underlayment material 20 is adhesively fixed to the studs 40.

[0065] Multiple underlayment panels 20 have their back surfaces 22 horizontally positioned on the mounting surface 41 of multiple studs 40 and are fixed to the mounting surface 41 via adhesive 80. Multiple underlayment panels 20 adjacent to each other vertically and horizontally are butted against each other to form horizontal butt joints 24 and vertical butt joints (not shown).

[0066] On the surface 21 of the underlayment panel 20, a separate adhesive 80 is bonded along the longitudinal direction of the mounting surface 41 to the position corresponding to the mounting surface 41 of the stud 40, and the back surface 32 of the overlayment panel 30 is attached to the surface 21 of the underlayment panel 20 via the adhesive 80.

[0067] The top cladding panels 30 are attached to the surfaces 21 of multiple undercladding panels 20 via adhesive 80 located at positions corresponding to the mounting surfaces 41 of the three studs 40, similar to the building cladding panels 10 of the partition wall 90. Multiple top cladding panels 30 adjacent to each other vertically and horizontally are butted against each other to form horizontal butt joints 34 and vertical butt joints 35. Note that the horizontal butt joints 34 and vertical butt joints 35 may be open joints.

[0068] In the partition wall 90B, the underlayment 20 is fixed to the mounting surface 41 of the studs 40 via adhesive 80, and the overlayment 30 is fixed to the surface 21 of the underlayment 20 via adhesive 80. This reduces the time required to install both the underlayment 20 and the overlayment 30, resulting in good workability.

[0069] Next, with reference to Figures 12 to 15, a method for attaching the building sheathing material 10A that forms the partition wall 90B shown in Figure 11 to the mounting surface 41 of the stud 40 will be described. In the following description, a single stud 40 will be used, and the method of attaching the underlayment sheathing material 20 to the mounting surface 41 of a single stud 40, and then attaching the overlayment sheathing material 30 to the corresponding position on the mounting surface 41 of the underlayment sheathing material 20 will be described.

[0070] First, as shown in Figure 12, adhesive 80 is applied to the mounting surface 41 of the stud 40 along its longitudinal direction, the underlayment 20 is positioned relative to the mounting surface 41 of the stud 40, a portion of the back surface 22 of the underlayment 20 is adhered to the adhesive 80, and the underlayment 20 is pressed from the surface 21 toward the back side to adhere (first temporary fixing step).

[0071] After temporarily fixing the underlayment material 20 to the mounting surface 41 of the stud 40, as shown in Figure 13, a magnetic suction jig M, held by a worker (not shown), is brought into contact with the surface 21 of the underlayment material 20 and moved in the X direction along the adhesive 80.

[0072] By moving the magnetic attraction jig M, the suction force F of the magnetic attraction jig M pulls the mounting surface 41 of the stud 40 toward the underlayment material 20, and the pair of wide surfaces of the adhesive 80 interposed between the mounting surface 41 of the stud 40 and the back surface 22 of the underlayment material 20 are pressed together. As the pair of wide surfaces of the adhesive 80 are pressed together by the mounting surface 41 and the back surface 22 in this way, the entire surface of the adhesive 80 is pressed against both the mounting surface 41 and the back surface 22 (first fixing step).

[0073] Next, as shown in Figure 14, adhesive 80 is applied to the surface 21 of the underlayment material 20 at a position corresponding to the mounting surface 41 of the stud 40, along the longitudinal direction of the mounting surface 41.

[0074] Next, as shown in Figure 15, the top covering material 30 is aligned with the mounting surface 41 of the stud 40, a portion of the back surface 32 of the top covering material 30 is bonded to the adhesive 80, and the top covering material 30 is bonded by pressing it from the surface 31 toward the back side (second temporary fixing step).

[0075] After temporarily fixing the top covering material 30 to the surface 21 of the underlayment material 20, as shown in Figure 15, a magnetic suction jig M, held by a worker (not shown), is brought into contact with the surface 31 of the top covering material 30 and moved along the adhesive 80 in the X direction.

[0076] By moving the magnetic attraction jig M, the suction force F of the magnetic attraction jig M pulls the mounting surface 41 of the stud 40 toward the upper facing material 30, and the surface 21 of the under facing material 20 and the back surface 32 of the upper facing material 30, which are attracted to each other, press against the pair of wide surfaces of the adhesive 80 interposed between them. As the pair of wide surfaces of the adhesive 80 are pressed against the surface 21 and back surface 32 in this way, the entire area of ​​the wide surfaces of the adhesive 80 is pressed against both the surface 21 and back surface 32 (second fixing step).

[0077] In this way, by using the magnetic attraction jig M to attract the stud 40 to the underlayment 20 with an attractive force F, and further attracting the underlayment 20 to the overlayment 30, good adhesion between the stud 40 and the underlayment 20, and between the underlayment 20 and the overlayment 30 can be achieved. Furthermore, even if the adhesive 80 is hidden by the underlayment 20 or the overlayment 30 during installation, by using the magnetic attraction jig M to attract the stud 40 to the underlayment 20 or the overlayment 30 with an attractive force F, the mounting surface 41 of the stud 40 and the back surface 22 of the underlayment 20, and the surface 21 of the underlayment 20 and the back surface 32 of the overlayment 30 can be pressed together while ensuring a predetermined adhesive area.

[0078] [Modified example of the method for attaching building surface materials according to the third embodiment] Next, with reference to Figures 16 to 18, a modified example of the method for installing building sheathing according to the third embodiment will be described. Here, Figure 16 is a process diagram illustrating the method for installing building sheathing according to a modified example of the third embodiment, and Figure 17 is an enlarged view of part XVII in Figure 16, showing a part of the joint underlayment material. Figure 18 is a perspective view of an example of joint underlayment material.

[0079] The illustrated modified example differs from the example of the method for attaching building panels according to the third embodiment described with reference to Figures 12 to 15, in that, as shown in Figure 16, a joint underlayment 46 is provided on the back side of the horizontal butt joint 24 formed by the upper and lower underlayment panels 20.

[0080] The joint filler material 46 has flame-retardant properties and is a component that prevents hot air from leaking into the inside of the partition wall during a fire through the horizontal butt joint 24. Here, "flame-retardant properties" refers to the ability to block the leakage of hot air and flames, and includes materials that inherently have fire-resistant properties, materials that harden with heat to become fire-resistant, and materials that burn with heat but remain as ash-like lumps, thereby achieving flame-retardant properties as a result.

[0081] As shown in Figures 16 and 17, after the adhesive 80 is bonded to the mounting surface 41 of the stud 40 along its longitudinal direction, the lower underlayment 20 is aligned with the mounting surface 41 of the stud 40, a portion of the back surface 22 of the lower underlayment 20 is bonded to the adhesive 80, and the lower underlayment 20 is bonded by pressing it from the surface 21 toward the back side. At this time, the upper region of the lower underlayment 20 is not pressed toward the back side because a portion of the joint underlayment material 46 is inserted into its back surface. Here, a vertical butt joint 25 is formed between the left and right underlayment 20 that are bonded to the stud 40 via the adhesive 80.

[0082] Next, the back piece 47 of the joint base material 46 is inserted into the back of the lower base material 20, and the protruding piece 48 of the joint base material 46 is placed on the upper end surface 23a of the lower base material 20. By pressing the upper area of ​​the lower base material 20 toward the back, a portion of the back of the lower back piece 47 of the joint base material 46 is adhered to the adhesive 80.

[0083] Here, with reference to Figure 18, the configuration of an example of a joint underlayment 46 will be described. The joint underlayment 46 is formed by bending a single sheet of material (for example, a metal plate). In the illustrated example, the joint underlayment 46 has protruding pieces 48 extending from two back pieces 47 via two first bent portions 46a, and the protruding pieces 48 have a U-shape with a second bent portion 46b.

[0084] Furthermore, the joint base material 46 has a predetermined angle θ of less than 90 degrees between the back piece 47 and the overhanging piece 48. Here, this predetermined angle θ of less than 90 degrees can be said to be approximately 60 to 88 degrees.

[0085] The joint base material 46 has a total width t1 (width in cross-section) of 40 mm or more between its two back pieces 47. Additionally, an overhanging piece 48 is provided at the center of the two back pieces 47, and the overhanging length of the overhanging piece 48 is set to a range of 5 mm to 20 mm. Furthermore, the longitudinal length t3 of the joint base material 46 can be set to approximately 1815 mm, spanning 6 spans, for example, when the spacing between studs 40 is approximately 303 mm.

[0086] Thus, because the joint underlayment 46 has an overall width of 40 mm or more and a total length of approximately 1815 mm, resulting in a high aspect ratio, it is prone to bending during transportation and construction, and if the joint underlayment 46 is made of metal, there is a risk of plastic deformation. However, since the joint underlayment 46 has a protruding piece 48 along its entire length at the center of its width, this protruding piece 48 provides bending rigidity, making it possible to suppress or prevent bending and plastic deformation during transportation and construction.

[0087] Because the back piece 47 and the overhanging piece 48 have a predetermined angle θ of less than 90 degrees, when the joint underlayment material 46 is installed such that the overhanging piece 48 is inserted between the lower end surface 23b (end) and the upper end surface 23a (end) of the upper and lower underlayment material 20, as shown in Figure 17, the end of the back piece 47 can be tightly attached to the back surface of the underlayment material 20 without any gaps.

[0088] By pressing the upper region of the lower underlayment 20 toward the back, a portion of the back surface of the lower back piece 47 of the joint underlayment 46 is adhered to the adhesive 80. Then, the upper underlayment 20 is placed on top of the lower underlayment 20, and by pressing the upper underlayment 20 toward the back, a portion of the back surface of the upper back piece 47 of the joint underlayment 46 is also adhered to the adhesive 80, so that both the upper and lower back pieces 47 are adhered to the adhesive 80.

[0089] Here, the underlayment material 20 has a chamfered portion 23d at the corner on the back side of the lower end surface 23b. The length of this chamfered portion 23d in the thickness direction of the underlayment material 20 is set to a range of, for example, 7 mm to 23 mm.

[0090] Therefore, when joint underlayment material 46 is installed on the back surface of the upper and lower underlayment material 20, an overhanging piece 48 whose overhanging length t2 is in the range of 5 mm to 20 mm and is set to be less than the length in the thickness direction of the chamfered portion 23d can be accommodated within the chamfered portion 23d.

[0091] With the back surface of the joint base material 46 pressed against the stud 40, the upper and lower underlayment panels 20 are fixed to the stud 40, thereby ensuring reliable gap prevention (sealing) of the horizontal butt joint 24 by the joint base material 46. Consequently, hot air leaking into the interior of the partition wall through the horizontal butt joint 24 is effectively prevented.

[0092] The above describes the first temporary fixing step in a modified example of the third embodiment. Next, the method described above is carried out in the same manner with reference to Figures 13 to 15.

[0093] The method for attaching building sheathing materials according to a modification of the third embodiment also enables good adhesion between the studs 40 and the underlayment sheathing material 20, and between the underlayment sheathing material 20 and the overlayment sheathing material 30. Furthermore, by using a magnetic attraction jig M to attract the studs 40 to the underlayment sheathing material 20 and the overlayment sheathing material 30 with an attractive force F, the mounting surface 41 of the studs 40 and the back surface 22 of the underlayment sheathing material 20, and the surface 21 of the underlayment sheathing material 20 and the back surface 32 of the overlayment sheathing material 30 can be pressed together while ensuring a predetermined adhesive area. In addition, by arranging joint underlayment material 46 on the back of the horizontal butt joint 24, it becomes possible to construct a partition wall with excellent fire-resistant performance.

[0094] Furthermore, other embodiments may be possible in which other components are combined with the configurations listed in the above embodiments, and this disclosure is not in any way limited to the configurations shown herein. In this regard, modifications can be made without departing from the spirit of this disclosure, and can be appropriately determined according to the application.

[0095] For example, the illustrated example shows partition walls 90, 90A, and 90B formed with single-layer architectural sheathing 10 and double-layer architectural sheathing 10A. However, if the overall thickness of the architectural sheathing is, for example, up to about 50 mm, architectural sheathing with a triple-layer or higher structure may also be used.

[0096] Furthermore, the base material may not be steel studs or the like, but rather a base material that is not magnetically attracted. Examples of "materials that are not magnetically attracted" include wood, mortar, concrete, reinforced concrete, and resin.

[0097] This method further includes a base material formation step, in which a magnetically attracted material such as a steel plate is directly or indirectly fixed to the mounting surface of the base material, thereby forming a magnetically attracted base material (steel base material) as a whole with the base material and the steel plate. After this base material formation step, each step of the building surface material mounting method according to the first to third embodiments is performed.

[0098] This international application claims priority based on Japanese Patent Application No. 2021-205428, filed on 17 December 2021, and the entire contents of said application are incorporated herein by reference. [Explanation of Symbols]

[0099] 10,10A: Architectural surface material 11: Surface 12: Back 14: Butt joint 15: Vertical butt joint 20: Underlayment 21: Surface 22: Back 23a: Upper end surface 23b: Bottom end surface 23c: Side end surface 23d: Chamfered section 24: Butt joint 25: Vertical butt joint 30: Overlaying material 31: Surface 32: Back 34: Butt joint 35: Vertical butt joint 40: Underlayment (studs) 41, 42: Mounting surface 44:Top end 45: Bottom edge 46: Joint base material 51: Upper Runner 52: Lower runner 61,62:Floor structure 70: Fasteners (screws) 80: Adhesive 90, 90A, 90B: Partition walls M: Magnetic attraction jig T: Handle J: Magnetic field F: Suction power

Claims

1. A method for attaching building sheathing to a steel base material, A temporary fixing step involves temporarily fixing a portion of the back surface of the building surface material to the adhesive bonded to the mounting surface of the base material, A method for attaching a building surface, comprising the fixing step of bringing a magnetic suction jig into contact with the surface of the building surface opposite to the back surface and moving it along the adhesive, thereby attracting the base material with the suction force of the magnetic suction jig and pressing the building surface into place.

2. A method for attaching architectural sheathing materials, comprising attaching underlayment sheathing and overlay sheathing materials, to a steel base material, The first fixing step involves fixing the underlayment material to the mounting surface of the base material using fasteners, A temporary fixing step involves temporarily fixing a portion of the back surface of the top covering material to the adhesive bonded to the surface of the underlayment material opposite to the back surface facing the mounting surface, A method for attaching building panels, comprising a second fixing step of bringing a magnetic suction jig into contact with the surface of the overlay panel opposite to the back surface and moving it along the adhesive, thereby using the suction force of the magnetic suction jig to attract the base material and press the overlay panel into place.

3. A method for attaching architectural sheathing materials, comprising attaching underlayment sheathing and overlay sheathing materials, to a steel base material, A first temporary fixing step involves temporarily fixing a portion of the back surface of the underlayment material to the adhesive bonded to the mounting surface of the aforementioned base material, The first fixing step involves bringing a magnetic suction jig into contact with the surface of the underlayment facing material opposite to the back surface, and moving it along the adhesive, thereby using the suction force of the magnetic suction jig to attract the base material and press the underlayment facing material into place. A second temporary fixing step involves temporarily fixing a portion of the back surface of the top covering material to the adhesive bonded to the surface of the underlayment material, A method for attaching building panels, comprising a second fixing step of bringing the magnetic suction jig into contact with the surface of the overlay panel opposite to the back surface and moving it along the adhesive, thereby using the suction force of the magnetic suction jig to attract the base material and press the overlay panel into place.

4. The method for attaching building surface material according to any one of claims 1 to 3, wherein the steel base material is a steel stud.

5. A method for attaching building surface material according to any one of claims 1 to 3, further comprising a base material forming step of forming the steel base material by directly or indirectly fixing a steel plate to a base material made of a material that is not magnetically attracted.

6. The method for attaching building surface material according to claim 5, wherein the material that is not magnetically attracted is one of wood, mortar, concrete, reinforced concrete, or resin.

7. The method for attaching a building surface material according to any one of claims 1 to 3, wherein the building surface material is a gypsum board or gypsum board.

8. The method for installing building facing materials according to claim 2 or 3, wherein one of the upper facing material and the lower facing material is a gypsum board or gypsum board, and the other is a calcium silicate board.

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