Building wall

Abstract

Provided is a building wall constructed in the vicinity of a building material constructed in advance, the building wall facilitating the fastening of an underlayer surface member and an upper layer surface member constituting the building wall. This building wall 100 comprises an underlayer 20 connected to a plurality of studs 10, an intermediate layer 30 connected to the underlayer 20, and an upper layer 40 connected to the intermediate layer 30. A building material 81 independent of the building wall 100 is arranged on, from among an upper layer surface member 41, a surface opposite to a back surface facing an intermediate surface member 31. A underlayer surface member 21 is fastened to the stud 10 by a first fixing member 50, the intermediate layer surface member 31 is fastened to the underlayer surface member 21 by a third fixing member 60, and the upper layer surface member 41 is fastened to the intermediate surface member 31 by a fourth fixing member 70. Respective fastening positions of the first fixing member 50, the third fixing member 60, and the fourth fixing member 70 are set in regions avoiding the building material 81.

Description

[Technical Field]

[0001] The present disclosure relates to building walls. [Background technology]

[0002] Conventionally, the method of attaching architectural panels to studs (or partition walls) to construct building walls such as the interior side walls of partition walls and exterior walls involves fastening an overlapping layer consisting of an underlayment and an overlayment, for example, made up of two architectural panels, to the studs that are erected horizontally spaced apart.

[0003] More specifically, building walls are constructed by fastening multiple underlayment panels to multiple studs with screws or the like to form an underlayment, and then fastening multiple toplayment panels to the underlayment with staples and / or adhesive to form a toplayment. However, there are also building walls that are composed of three or more layers of architectural panels, with an inner layer between the underlayment and toplayment.

[0004] In multi-story buildings, staircase spaces are provided that allow people to freely ascend and descend between each floor. These staircase spaces are composed of building walls such as partition walls and stairs that stand independently of the building walls. Staircases include side girder stairs and stringer stairs, and the side girders that make up these stairs are disposed on the surface of the building wall covering. Here, in this specification, "independent from the building wall" means that other components such as stairs are separate from the building wall, and includes both cases where the other components are in contact with the surface of the building wall and cases where the other components are separate from the surface of the building wall.

[0005] For example, Patent Document 1 also proposes an indoor staircase with handrails that has stringers attached to the sides of the wall panels. This indoor staircase with handrails has a handrail supported by an arm that protrudes from the surface of one of the wall panels that surround the staircase on either side, and the stringer attached to the wall panel facing the handrail is divided into upper and lower girders, with the step and riser plates as the boundary, and the step and riser plates are inserted into the insertion grooves between the upper and lower girders. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 6-10464 Summary of the Invention [Problem to be solved by the invention]

[0007] For example, a typical construction method for a staircase space equipped with overlapping building walls is to construct the stairs connecting each floor (for example, the first and second floors), then erect the studs that make up the building wall on the side of the stairs, erect the underlayment by erecting a subfloor surface material between the studs and the stairs and fastening it to the studs, and then erect the topfloor by erecting a topfloor surface material between the underlayment and the stairs and fastening it to the underlayment.

[0008] With this construction method, there is a problem in that when driving screws or other fasteners to fasten the underlayment surface material to the studs, or when driving staples or other fasteners to fasten the top layer surface material to the underlayment surface material, the stringers of the stairs that have already been constructed get in the way, making it difficult to fasten the underlayment surface material and the top layer surface material.

[0009] Furthermore, not only in staircase spaces like this, but in the construction of buildings, various building materials (hereinafter, including staircase side beams, simply referred to as "building materials") such as floor beams, inter-floor beams, and foundation beams that have already been installed often become obstacles to the construction of building walls that will be installed later near the building materials, which creates the problem that the previously installed building materials make it difficult to fasten the underlayment and toplayment surface materials of the building walls.

[0010] The present disclosure relates to a building wall that is constructed near a building material that is constructed in advance, and provides a building wall that allows for easy fastening of the underlayment surface materials and overlayment surface materials that constitute the building wall. [Means for solving the problem]

[0011] A building wall according to one aspect of the present disclosure comprises: A building wall comprising a subfloor formed of a plurality of subfloor facings connected to studs spaced at predetermined intervals, and a facing formed of a plurality of facing facings connected to the subfloor facings, A building material independent from the building wall is disposed on the surface of the upper surface material opposite to the back surface facing the lower surface material, The underlayment surface is fastened to the stud by a first fastening member, and the upper surface is fastened to the underlayment surface by a second fastening member, The fastening positions of both the first fixing member and the second fixing member are set in areas that avoid the building material.

[0012] Furthermore, a building wall according to another aspect of the present disclosure includes: A building wall comprising a subfloor formed by a plurality of subfloor facings connected to studs arranged at predetermined intervals, an infill formed by a plurality of infill facings connected to the subfloor facings, and an infill formed by a plurality of infill facings connected to the infill facings, A building material independent from the building wall is arranged on the surface of the upper surface material opposite to the back surface facing the inner surface material, The underlayment surface material is fastened to the stud with a first fixing member, the middle lining surface material is fastened to the underlayment surface material with a third fixing member, and the top lining surface material is fastened to the middle lining surface material with a fourth fixing member, The fastening positions of the first fixing member, the third fixing member and the fourth fixing member are set in areas that avoid the building material. [Effects of the Invention]

[0013] According to the present disclosure, for a building wall that is constructed near a building material that is constructed in advance, it is possible to easily fasten the underlayment surface material and overlayment surface material that constitute the building wall. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a front view showing a state in which a subfloor surface material is fastened to a stud in a building wall according to an embodiment that forms a staircase space. [Figure 2] FIG. 1 is a front view showing a state in which an intermediate surface material is fastened to a subfloor surface material in a building wall according to an embodiment that forms a staircase space. [Figure 3] FIG. 1 is a front view showing a state in which a top surface material is fastened to an inner surface material in a building wall according to an embodiment that forms a staircase space. [Figure 4] FIG. 4 is a view taken along the line IV-IV in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an example of a building wall according to an embodiment will be described with reference to the accompanying drawings. In this specification and drawings, substantially identical components will be designated by the same reference numerals, and redundant description may be omitted.

[0016] [Building wall according to the embodiment] An example of a building wall according to an embodiment will be described with reference to Figures 1 to 4. Here, Figure 1 is a front view of a building wall according to an embodiment that forms a staircase space, showing a state in which a subfloor surface material is fastened to a stud. Also, Figure 2 is a front view of a building wall according to an embodiment that forms a staircase space, showing a state in which an inner lining surface material is fastened to a subfloor surface material. Also, Figure 3 is a front view of a building wall according to an embodiment that forms a staircase space, showing a state in which a top lining surface material is fastened to an inner lining surface material, and Figure 4 is a view taken along the arrows IV-IV in Figure 3.

[0017] Here, the building wall in the illustrated example is a single-sided, three-panel partition wall with three layers of underlayment, inner lining, and top lining overlapped on one side of the stud, but the building wall may also be a single-sided, single-panel partition wall with one overlapping surface consisting of a single panel, a single-sided, two-panel partition wall with two overlapping surfaces consisting of underlayment and top lining, a double-sided, single-panel partition wall with one panel on both sides of the stud, or a double-panel or triple-panel partition wall with two or three overlapping surfaces. In a partition wall with an overlapping surface consisting of two underlayment and top linings, the underlayment surface material is fastened to the stud with a first fastening member such as a screw, and the top lining surface material is fastened to the underlayment surface material with a second fastening member such as a staple. Furthermore, in addition to the illustrated partition wall, the building wall may also be the interior side wall of an exterior wall. Furthermore, in the illustrated example, the building materials arranged on the surface of the building wall are stringers that make up the stairs, but as already mentioned, there are various building materials such as floor beams, floor beams, foundation beams, etc. that are arranged on the surface of the building wall.

[0018] The partition wall 100 (an example of a building wall) shown in Figure 3 is applied to steel-framed buildings, RC (Reinforced Concrete) buildings, wooden buildings, etc., and these buildings include ordinary detached houses, apartment complexes, factories, warehouses, etc.

[0019] The partition wall 100 has a plurality of studs 10 that form the main framework, as well as lower runners (or floor runners) and upper runners (or ceiling runners), not shown. The studs 10 extend vertically, while the upper and lower runners extend horizontally. Both the upper and lower runners, not shown, are made of lightweight steel frame material such as channel steel, with the upper runner attached to the floor structure above with its opening facing downward, and the lower runner attached to the floor structure below with its opening facing upward.

[0020] The stud 10 is formed of a lipped channel steel of a light-gauge steel frame. However, the stud 10 may also be formed of a channel steel or a square steel pipe.

[0021] The upper and lower ends of each stud 10 are fitted into the upper runner and lower runner, respectively, thereby fixing each stud 10 to the upper runner and lower runner. Here, a plurality of horizontally extending steady rests (not shown) may be provided at a predetermined pitch (for example, 1200 mm pitch) in the height direction of the studs 10.

[0022] The studs 10 and the upper and lower runners (not shown) are made of lightweight steel material, for example, 0.4 mm or more in thickness, and steel runners and steel studs specified in JIS A 6517 ("Steel base materials for construction"), or equivalent, compliant, or compatible products, can be used. In the partition wall 100, multiple studs 10 are set between the lower and upper runners in the width direction of the wall (left and right direction in Figure 3) at intervals of 606 mm or less (for example, intervals of 606 mm or 455 mm).

[0023] The fastening structure of the underlayment, inner lining, and top lining will be described below in the order of Figs. 1 to 3.

[0024] As shown in Figure 1, in front of the multiple studs 10 (the front side of the paper), multiple underlayment surface materials 21 are fastened to form the underlayment 20, and on the front side of the underlayment 20, a side beam 81 (an example of a building material) that constitutes the staircase 80, and multiple step boards 82 and risers 83 fixed to the side beam 81 are arranged.

[0025] The staircase 80 is erected independently of the studs 10 and underlayment 20, i.e., independently of the partition wall 100, and there is space between the studs 10 and stringers 81 for erecting the illustrated underlayment 20 as well as the inner lining 30 and upper lining 40, which will be described below. Here, the staircase 80 in the illustrated example is a stringer staircase, but the stringer 81 may also include stringers, and a stringer staircase with stringers may also be applied.

[0026] The construction method for the stairs 80 that make up the staircase space and the partition walls 100 on either side of them is as follows: first, the stairs 80 are attached to the structural components (foundation beams and second floor floor beams, etc.) of the upper and lower floors (for example, the first and second floors), then multiple studs 10 are erected on the sides of the stairs 80, an underlayment surface material 21 is erected in the space between the studs 10 and the side beams 81, and the underlayment surface material 21 is fastened to the studs 10.

[0027] Gypsum board, gypsum board, calcium silicate board, particle board, hardboard, plywood, structural plywood, etc. are applicable as the underlayment surface material 21, and among these, gypsum board and gypsum board are preferably used. Here, gypsum board includes not only general gypsum board, but also reinforced gypsum board, ordinary hard gypsum board, sheathing hard gypsum board, moisture-absorbing and desorbing reinforced gypsum board, moisture-absorbing and desorbing ordinary gypsum board, moisture-absorbing and desorbing hard gypsum board, glass fiber nonwoven fabric-reinforced gypsum board, glass mat gypsum board, etc.

[0028] For example, when gypsum board is used as the underlayment surface material 21, its short sides, long sides, and thickness are formed from semi-non-combustible material of 910mm x 1820mm x 9.5mm, or non-combustible material of 910mm x 1820mm (2420mm, 2730mm) x 12.5mm (15mm, 21mm, 25mm), and the width of the gypsum board is not limited to 910mm, but also includes 606mm, 1000mm, 1220mm, etc.

[0029] The underlayment surface material 21 is fastened to the studs 10 with screws 50 (an example of a first fixing member). Here, in addition to the screws shown in the illustration, nails, screws, etc. may also be used as the first fixing member.

[0030] In the illustrated example, a plurality of underlayment surface materials 21 are arranged vertically for a plurality of studs 10. However, a configuration in which a plurality of underlayment surface materials 21 are arranged horizontally may also be used.

[0031] As shown in Figure 1, a staircase 80 has already been constructed in front of the stud 10, so when fastening the underlayment surface material 21 to the stud 10, the side beam 81 that makes up the staircase 80 becomes an obstacle to driving in the screws 50.

[0032] The fastening pitch t1 in the general portion where the side girder 81 does not become an obstacle when fastening with the screws 50 is set to, for example, about 300 mm.

[0033] On the other hand, in areas where the side girders 81 are an obstacle, fastening with screws 50 is not performed, but fastening with screws 50 is performed above and below the side girders 81, i.e., in areas that avoid the side girders 81 (building materials).

[0034] As shown in FIG. 1, the fastening pitch t2 of the screws 50 in the area avoiding the stringer 81 can be set to a maximum of approximately 750 mm.

[0035] As shown in the illustrated example, by fastening the underlayment surface material 21 to the studs 10 with screws 50 in an area that avoids the stringer 81 and setting the fastening pitch t2 to a maximum of approximately 750 mm, it becomes possible to smoothly fasten the underlayment surface material 21 to the studs 10 while ensuring the fastening strength of the underlayment surface material 21 to the studs 10. Note that if the fastening strength can be ensured even if the fastening pitch t2 exceeds 750 mm, the fastening pitch t2 may be set in a range exceeding 750 mm.

[0036] A fastening structure between the studs 10 and the underlayment 20 is formed by fastening a plurality of underlayment surface materials 21 to a plurality of studs 10.

[0037] Next, as shown in FIG. 2, a plurality of inner lining surface materials 31 are fastened to the surface of the underlayment 20 (the surface facing the stringer 81).

[0038] As with the underlayment surface material 21, the intermediate surface material 31 may be made of gypsum board, gypsum board, calcium silicate board, or the like, with gypsum board and gypsum board being particularly preferred.

[0039] In the illustrated example, a plurality of interlining face materials 31 are arranged vertically on the underlayment 20. However, a configuration in which a plurality of interlining face materials 31 are arranged horizontally may also be used.

[0040] The inner lining surface material 31 is fastened to the underlayment 20 with an adhesive such as a vinyl acetate adhesive (not shown) and staples 60 (an example of a third fixing member).

[0041] Although the staples 60 are driven into the adhesive when viewed from the front, for example, the staples 60 may not be driven into the adhesive but may be driven into positions that do not correspond to the adhesive.

[0042] As shown in Figure 2, the staples 60 include peripheral staples 61 that are driven at a relatively dense pitch around the periphery of the filling panel 31, and central staples 62 that are driven at a relatively coarse pitch around the center of the filling panel 31.

[0043] As shown in Figure 2, a staircase 80 has already been constructed in front of the underlayment 20, so when fastening the intermediate surface material 31 to the underlayment 20, the stringers 81 that make up the staircase 80 obstruct the driving of the staples 61, 62.

[0044] When fastening using staples 61, 62, the fastening pitch in the general area where the stringer 81 does not become an obstacle is set to approximately 100 mm, and the fastening pitch t3 of the peripheral staples 61 is set to approximately 100 mm, and the fastening pitch t4 of the central staples 62 is set to approximately 200 mm.

[0045] In this way, by fastening the periphery of the interlining surface material 31 to the underlayment 20 with staples 61 at a relatively dense pitch and fastening the centre of the interlining surface material 31 with staples 62 at a relatively coarse pitch, it is possible to increase the fastening strength of the interlining surface material 31 to the underlayment 20 while minimizing the number of staples 60.Furthermore, it is possible to increase the integrity (ability to deform as a unit) of the constituent members of the partition wall 100 when they deform during an earthquake, and to prevent the constituent members of the partition wall 100 from falling off during a fire (preventing the interlining 30 from falling off from the underlayment 20).

[0046] The interlining surface material 31 is also fastened to the stud 10 by an additional screw 65 (an example of a fifth fixing member) that penetrates the underlayment surface material 21. In the illustrated example, the interlining surface material 31 is fastened to the stud 10 by a single additional screw 65, but two or more additional screws 65 may be used. This additional screw 65 further enhances the unity of the stud 10, underlayment 20, and interlining 30. Here, the additional screw 65 may be driven from the surface of the upper surface material 41 described below, and may penetrate both the interlining surface material 31 and the underlayment surface material 21 to be fastened to the stud 10, but preferably is driven from the surface of the interlining surface material 31 in the illustrated example.

[0047] On the other hand, in areas where the stringer 81 is an obstacle, staples 60 are not used for fastening, but staples 60 are used for fastening above and below the stringer 81, i.e., in areas that avoid the stringer 81 (building material).

[0048] As shown in FIG. 2, the fastening pitch t5 of the staples 60 in the area avoiding the stringer 81 can be set to a maximum of approximately 750 mm.

[0049] As shown in the illustrated example, the interlining surface material 31 is fastened to the underlayment 20 with staples 60 in an area that avoids the stringer 81, and by setting the fastening pitch t5 to a maximum of approximately 750 mm, it becomes possible to smoothly fasten the interlining surface material 31 to the underlayment 20 while ensuring the fastening strength of the interlining surface material 31 to the underlayment 20. Note that if the fastening strength can be ensured even if the fastening pitch t5 exceeds 750 mm, the fastening pitch t5 may be set in a range exceeding 750 mm.

[0050] The inner covering 30 is formed by fastening a plurality of inner covering face materials 31 to the underlayment 20, and a fastening structure of the underlayment 20 and the inner covering 30 is formed.

[0051] Next, as shown in FIG. 3, a plurality of top paneling materials 41 are fastened to the surface of the inner lining 30 (the surface facing the stringer 81).

[0052] Like the underlayment surface material 21 and the intermediate surface material 31, gypsum board, gypsum board, calcium silicate board, etc. are used for the upper surface material 41, and among these, gypsum board and gypsum board are preferably used. For example, by forming the underlayment surface material 21 and the intermediate surface material 31 from reinforced gypsum board and the upper surface material 41 from ordinary gypsum board, a fire-resistant partition wall 100 with a three-layer structure is formed.

[0053] In the illustrated example, a plurality of facing panels 41 are arranged vertically relative to the inner lining 30. However, a configuration in which a plurality of facing panels 41 are arranged horizontally may also be used.

[0054] The facing surface material 41 is fastened to the inner lining 30 with an adhesive such as a vinyl acetate adhesive (not shown) and staples 70 (an example of a fourth fixing member).

[0055] Although the staples 70 are driven into the adhesive when viewed from the front, for example, the staples 70 may not be driven into the adhesive but may be driven into positions that do not correspond to the adhesive.

[0056] As shown in Figure 3, the staples 70 include peripheral staples 71 that are driven at a relatively dense pitch around the periphery of the upper surface material 41, and central staples 72 that are driven at a relatively coarse pitch around the center of the upper surface material 41.

[0057] As shown in Figure 3, a staircase 80 has already been constructed in front of the inner lining 30, so when fastening the top panel 41 to the inner lining 30, the stringers 81 that make up the staircase 80 obstruct the driving of staples 71, 72.

[0058] Regarding the fastening pitch in the general area where the stringers 81 do not interfere with fastening using staples 71 and 72, the fastening pitch t6 of the peripheral staples 71 is set to approximately 100 mm, and the fastening pitch t7 of the central staples 72 is set to approximately 200 mm.

[0059] In this way, by fastening the periphery of the top covering surface material 41 to the inner lining 30 with staples 71 at a relatively dense pitch and fastening the centre of the top covering surface material 41 with staples 72 at a relatively coarse pitch, it is possible to increase the fastening strength of the top covering surface material 41 to the inner lining 30 while minimizing the number of staples 70, thereby improving the integrity (ability to deform as a unit) of the components of the partition wall 100 when deforming during an earthquake and preventing the components of the partition wall 100 from falling off during a fire (preventing the top covering 40 from falling off from the inner lining 30).

[0060] On the other hand, in areas where the stringer 81 is an obstacle, staples 70 are not used for fastening, but staples 70 are used for fastening above and below the stringer 81, i.e., in areas that avoid the stringer 81 (building material).

[0061] As shown in FIG. 3, the fastening pitch t8 of the staples 70 in the area avoiding the stringer 81 can be set to a maximum of approximately 750 mm.

[0062] As shown in the illustrated example, the top covering surface material 41 is fastened to the intermediate covering 30 with staples 70 in an area that avoids the stringers 81, and by setting the fastening pitch t8 to a maximum of approximately 750 mm, it becomes possible to smoothly fasten the top covering surface material 41 to the intermediate covering 30 while ensuring the fastening strength of the top covering surface material 41 to the intermediate covering 30. Note that if the fastening strength can be ensured even if the fastening pitch t8 exceeds 750 mm, the fastening pitch t8 may be set in a range exceeding 750 mm.

[0063] The upper covering 40 is formed by fastening a plurality of upper covering surface materials 41 to the inner covering 30, a fastening structure of the inner covering 30 and the upper covering 40 is formed, and a partition wall 100 is formed by fastening the under covering 20 to the studs 10, fastening the inner covering 30 to the under covering 20, and fastening the upper covering 40 to the inner covering 30.

[0064] In the cross-sectional view of the partition wall 100 shown in FIG. 4 , the vertical joints 75 of the overlay 40 are, for example, open joints. Adhesive 78 is applied to the surface of the overlay 40 corresponding to the vertical joints 75, and hat joiners 77 are attached to the vertical joints 75. Here, adhesive 78 may be applied to the back surface of the hat joiner 77, and the hat joiner 77 may be attached to the vertical joints 75. Although not shown, the horizontal joints may be open joints, and the hat joiners may be attached to the horizontal joints. Furthermore, although not shown, a sealant may be applied between the hat joiner and the lining (including the joints). Applying a sealant improves the fire resistance of the vertical and / or horizontal joints. Furthermore, although not shown, the vertical and horizontal joints may be butt joints. Although the illustrated example shows the hat joiner 77 attached with adhesive 78, the hat joiner can also be attached with adhesive tape or double-sided adhesive tape.

[0065] A strip-shaped steel plate (not shown) extending horizontally may be disposed between the upper covering 40 and the intermediate covering 30. As an example, the upper covering 40 may have vertical joints 75 and horizontal joints (not shown), and a strip-shaped steel plate may be disposed on the rear surface of the upper covering 40 at a position corresponding to the horizontal joint (at a predetermined height from the floor). The steel plate may be, for example, a galvanized steel plate, and the steel plate may be bonded to the front surface of the intermediate covering 30 and the rear surface of the upper covering 40 with an adhesive such as quick-drying glue. The steel plate may be attached using staples, screws, adhesive tape, or double-sided adhesive tape, in addition to adhesive. The steel plate may also be disposed in various positions between the upper covering 40 and the intermediate covering 30 that do not correspond to the horizontal joint. Furthermore, the steel plate may be disposed between the stud 10 and the undercover 20, or between the undercover 20 and the intermediate covering 30.

[0066] The steel plate functions as a support base that cantilevers and supports add-on members (not shown) that are attached to the interior side of the upholstery 40. For example, one end of a rod-shaped support member (not shown) is fixed to the steel plate, the other end of the support member projects into the room, and add-on members such as handrails, wall hangings, backrests, and armrests are fixed to the other ends of the multiple support members.

[0067] As described above, because steel plate is a rigid plate material, it is suitable as a member that functions as a support base for supporting retrofit components. Also, because steel plate is a relatively thin, flat member, it is suitable as a member to be sandwiched between the inner lining 30 and the upper lining 40. Since it is desirable for the steel plate to have the minimum rigidity necessary to support the retrofit components and to be as thin as possible, the thickness of the steel plate is preferably in the range of 0.4 mm to 1.2 mm.

[0068] According to the partition wall 100, the fastening positions of the first fixing member 50 that fastens the underlayment surface material 21 to the studs 10, the third fixing member 60 that fastens the intermediate surface material 31 to the underlayment surface material 21, and the fourth fixing member 70 that fastens the upper surface material 41 to the intermediate surface material 31 are set in areas that avoid the stringers 81. This makes it possible to smoothly construct the partition wall 100, which has excellent fire resistance, beside the stairs 80 in the staircase space where the stairs 80 have been constructed first.

[0069] It should be noted that other embodiments may be possible in which other components are combined with the configurations described in the above embodiments, and the present disclosure is not limited to the configurations shown here. In this regard, modifications are possible within the scope of the present disclosure, and can be appropriately determined depending on the application form.

[0070] This international application claims priority to Japanese Patent Application No. 2022-088607, filed on May 31, 2022, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0071] 10: Stud 20: Underlay 21: Underlayment surface material 30: Lining 31: Inner covering surface material 40: Covering 41: Top covering surface material 50: Screw (first fixing member) 60: Staple (third fixing member) 61: Peripheral staples (staples) 62: Center staple (staple) 65: Additional screw (5th fixing part) 70: Staple (fourth fixing member) 71: Peripheral staples (staples) 72: Center staple (staple) 75:Vertical joint 77: Hat Joiner 78: Adhesive 80:Stairs 81: stringer 82: Step board 83: Kickboard 100: Partition wall (building wall)

Claims

1. A building wall comprising a subfloor formed of a plurality of subfloor facings connected to studs spaced at predetermined intervals, and a facing formed of a plurality of facing facings connected to the subfloor facings, A building material independent from the building wall is disposed on the surface of the upper surface material opposite to the back surface facing the lower surface material, The underlayment surface is fastened to the stud by a first fastening member, and the upper surface is fastened to the underlayment surface by a second fastening member, A building wall, wherein the fastening positions of both the first fixing member and the second fixing member are set in an area that avoids the building material.

2. A building wall comprising a subfloor formed by a plurality of subfloor facings connected to studs arranged at predetermined intervals, an infill formed by a plurality of infill facings connected to the subfloor facings, and an infill formed by a plurality of infill facings connected to the infill facings, A building material independent from the building wall is arranged on the surface of the upper surface material opposite to the back surface facing the inner surface material, The underlayment surface material is fastened to the stud with a first fixing member, the middle surface material is fastened to the underlayment surface material with a third fixing member, and the top surface material is fastened to the middle surface material with a fourth fixing member, A building wall, wherein the fastening positions of the first fixing member, the third fixing member, and the fourth fixing member are set in areas that avoid the building material.

3. 3. The building wall of claim 2, wherein the interfacial surface is further fastened to the studs by a fifth fastening member that penetrates the subfacial surface.

4. The building wall according to claim 1, wherein the first fixing member and the second fixing member are fastened at a maximum pitch of 750 mm.

5. The building wall according to claim 2 or 3, wherein the first fixing member, the third fixing member and the fourth fixing member are fastened at a maximum fastening pitch of 750 mm.

6. The top surface material has a rectangular shape in plan view, The building wall according to claim 1 or 4, wherein the fastening pitch of the second fastening members on the periphery of the rectangle is narrower than the fastening pitch of the second fastening members on the inside of the rectangle.

7. The planar shapes of the inner lining surface material and the upper lining surface material are both rectangular, The building wall according to claim 5, wherein the fastening pitch of the third fixing members and the fourth fixing members around the periphery of the rectangle is narrower than the fastening pitch of the third fixing members and the fourth fixing members inside the rectangle.

8. The building wall according to any one of claims 1 to 4, wherein a steel plate is provided on the back surface of the cladding.

9. The facing has vertical and horizontal joints, The building wall according to claim 8 , wherein the steel plate is disposed on the back surface of the cladding at a position corresponding to at least the horizontal joint.

10. The building wall according to claim 1 , wherein the building material is a stringer that constitutes a staircase.

11. The building wall according to claim 10 , wherein the stringers include both stringers that form stringer stairs and stringers that form stringer stairs.

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