outer wall

Abstract

To provide an outer wall capable of improving fire resistance.SOLUTION: An outer wall 1 includes an exterior material 90 and a finishing material 100 placed on a surface of the exterior material 90, in which a protrusion length L1 of the finishing material 100 from the exterior material 90 is 90 mm or less. Multiple finishing materials 100 are arranged so as to line up in a predetermined direction, in which a length of a predetermined direction of a gap between the finishing materials 100 (a width of a blind hole) L2 is 50 mm or less. The outer wall 1 includes: a furring 70 for fixing the exterior material 90; and a fastening material 110 for fastening the finishing material 100 to the exterior material 90 by being hammered into the furring 70 from the outside of the finishing material 100.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to building exterior wall technology. [Background technology]

[0002] Conventionally, technology for building exterior walls has been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 describes an exterior wall of a wooden house having an exterior heat-insulating, fire-resistant structure.

[0004] Such exterior walls are required to pass a prescribed fire resistance test, and further improvements in fire resistance performance are desired. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5823268 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an exterior wall that can improve fire resistance. [Means for solving the problem]

[0007] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0008] That is, in claim 1, an exterior material and It is provided on the outdoor side of the exterior material, The finishing material is provided on the surface of the exterior material, and the protruding length of the finishing material from the exterior material is 90 mm or less. The finishing materials are provided in a plurality so as to be aligned in a predetermined direction, and the exterior material is visible from the outdoor side through the gaps between the finishing materials, and the length of the gaps between the finishing materials in the predetermined direction is 50 mm or less. It is something.

[0010] Claim 2The finishing material is provided with a furring strip to which the exterior material is fixed, and a fastening material that is driven into the furring strip from the outside of the finishing material to fasten the finishing material to the exterior material.

[0011] Claim 3 In the structure, the exterior material is mortar, the finishing material is wood, and the fastening material is metal.

[0012] Claim 4 The present invention provides a waterproof material provided between the finishing material and the exterior material.

[0013] Claim 5 In the above, the finishing material is provided in multiple layers, and the total thickness of the multiple layers of the finishing material is 90 mm or less. [Effects of the Invention]

[0014] The present invention has the following effects.

[0015] According to claim 1, the fire resistance can be improved.

[0017] Claim 2 In this case, the fire resistance can be further improved.

[0018] Claim 3 In this case, the fire resistance can be further improved.

[0019] Claim 4 In this case, the waterproof performance can be improved.

[0020] Claim 5 In this case, it is possible to improve the design and fire resistance performance. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 2 is a plan cross-sectional view showing an outer wall according to an embodiment of the present invention. [Figure 2] 1A is a side cross-sectional view showing an example of an exterior wall according to an embodiment of the present invention;FIG. 1B is a side cross-sectional view showing another example of an exterior wall according to an embodiment of the present invention;FIG. [Figure 3] Schematic side views showing patterns for attaching finishing materials, including (a) direct attachment, (b) open joint attachment, (c) butted joint attachment, and (d) open joint attachment. [Figure 4] Schematic side views showing patterns for applying finishing materials, including (a) Tsutsumi + Meita, (b) Yamato-bari, (c) Yoroi-bari, and (d) Yoroi-bari + Shibori. DETAILED DESCRIPTION OF THE INVENTION

[0022] An exterior wall 1 according to one embodiment of the present invention will be described below with reference to FIGS.

[0023] 1 and 2 is a wall that faces the outside of a building 200. The exterior wall 1 is provided on the outer periphery of the building 200.

[0024] In the following description, the horizontal direction of the exterior wall 1 (the left-right direction on the paper in FIG. 1) may also be referred to as the "extension direction of the exterior wall 1."

[0025] The exterior wall 1 comprises main pillars 10, studs 20, interior materials 30, structural facings 40, insulation materials 50, additional insulation materials 60, furring strips 70, exterior materials 90, finishing materials 100, and fastening materials 110.

[0026] The main pillars 10 are pillars (load-bearing members) for supporting loads. The main pillars 10 are formed in the shape of rods (made of square timber) with a rectangular cross section. The main pillars 10 are erected on the foundation of the building 200 with their longitudinal directions facing up and down. A plurality of main pillars 10 are provided at intervals in the extension direction of the exterior wall 1.

[0027] The studs 20 are columns installed between adjacent main columns 10. The studs 20 are columns onto which the interior material 30 and structural surface material 40, which will be described later, are attached. The studs 20 are formed in the shape of rods (using square timbers) with a rectangular cross section. The studs 20 are erected on the foundation of the building 200 with their longitudinal directions facing up and down. The outdoor and indoor faces of the studs 20 are installed so as to be located on the same plane as the outdoor and indoor faces of the main columns 10, respectively. A plurality of studs 20 are installed at intervals from each other in the extension direction of the exterior wall 1. The intervals between the studs 20 can be any value, but it is preferable that they be 606 mm or less.

[0028] The interior material 30 constitutes the wall surface facing the indoor side. The interior material 30 is formed in a plate shape and is installed so that the plate surface faces the indoor side and the outdoor side. The interior material 30 is made of any material, for example, reinforced gypsum board. The interior material 30 is fastened to the indoor side surfaces of the main columns 10 and studs 20 with screws, nails, etc. These screws and nails are covered with putty so that they cannot be seen from the indoor side.

[0029] The structural surface material 40 is a board material such as plywood used to construct the exterior wall 1. The structural surface material 40 is formed into a plate shape and is installed so that its plate surface faces the indoor and outdoor sides. The structural surface material 40 can be made of any material, such as wood board, cement board, gypsum board, or volcanic vitreous composite board. The structural surface material 40 is fastened to the outdoor surfaces of the main columns 10 and studs 20 with screws, nails, etc.

[0030] The insulating material 50 provides insulation for the internal space of the exterior wall 1 (exterior insulation). The insulating material 50 is formed in a plate shape and is installed so that its plate surface faces the indoor and outdoor sides. The insulating material 50 is made of a foamed plastic insulating material, such as a polystyrene foam plate. The insulating material 50 is installed on the outdoor side of the structural facing 40. A moisture-proof, airtight sheet (not shown) is installed between the insulating material 50 and the structural facing 40. A waterproof sheet is attached to the outdoor surface of the insulating material 50 as appropriate.

[0031] The additional insulation 60 provides insulation (additional insulation) for the internal space of the exterior wall 1. The additional insulation 60 is formed in a plate shape, and is installed so that its plate surface faces the indoor and outdoor sides. The additional insulation 60 is made of artificial mineral fiber insulation material, such as glass wool or rock wool. The additional insulation 60 is installed between the interior material 30 and the structural surface material 40 (on the outdoor side of the interior material 30).

[0032] The furring strips 70 form the base for the exterior material 90, which will be described later. The furring strips 70 are formed into a rectangular plate when viewed from the front, and are installed with their longitudinal direction facing up and down. The furring strips 70 are installed on the outdoor side of the insulation material 50. The furring strips 70 are fastened to the indoor surfaces of the main columns 10 and studs 20 with screws, nails, etc. Multiple furring strips 70 are installed at intervals from each other. The interval between the furring strips 70 can be any value, but it is preferable that it be 606 mm or less.

[0033] The iron mesh 80 is intended to prevent the exterior material 90 (mortar), which will be described later, from peeling off. The iron mesh 80 is formed in the shape of an iron net, and examples of the iron mesh that can be used include metal lath with anti-rust treatment, iron mesh with anti-rust treatment (galvanized iron wire), stainless steel lath, baked paint type iron mesh, coated iron mesh, and iron mesh with waterproof paper. The iron mesh 80 is installed on the outdoor side of the furring strip 70 with waterproof paper (not shown) interposed between them.

[0034] The exterior material 90 constitutes the wall surface facing the outdoors. The exterior material 90 is formed by applying lightweight cement mortar to the iron mesh 80 (more specifically, to the outdoor surface of the waterproof paper on which the iron mesh 80 is provided).

[0035] The finishing material 100 is used to improve the design of the exterior material 90 (decorative wood). The finishing material 100 is made of wood. The finishing material 100 is formed (from square timber) into a rectangular rod shape when viewed from the front. The finishing material 100 is provided on the exterior surface of the exterior material 90. The finishing material 100 is provided with its longitudinal direction facing the extension direction of the exterior wall 1. A plurality of finishing materials 100 are provided so as to be lined up vertically. A paint is applied to the surface of the finishing material 100. This paint is made of acrylic resin, acrylic urethane resin, silicone resin, fluorine resin, inorganic resin, alkyd resin (polyester resin), urethane resin, oil-based (oil stain-based paint), wood protection (water-based paint), photocatalytic paint (titanium oxide), or a combination thereof. Details of the dimensions and arrangement of the finishing material 100 will be described later.

[0036] The fastening material 110 shown in FIG. 2 is used to fasten (secure) the finishing material 100. Screws or nails can be used as the fastening material 110. The fastening material 110 is made of metal (for example, stainless steel, steel, or brass). The fastening material 110 penetrates the finishing material 100 and the exterior material 90 from the exterior side of the finishing material 100 and is fastened to the furring strip 70. The spacing between the fastening materials 110 in the extension direction of the exterior wall 1 is 606 mm or less. The length of the fastening material 110 is 25 mm or more.

[0037] As shown in the enlarged view of Fig. 2(a), a waterproofing material 120 may be provided between the finishing material 100 and the exterior material 90. A butyl rubber-based sealing material can be used as the waterproofing material 120. By providing the waterproofing material 120 in this manner, it is possible to prevent water from entering the interior of the exterior wall 1 between the finishing material 100 and the exterior material 90 and through holes in the exterior material 90 for inserting the fastening material 110.

[0038] Here, when the exterior wall 1 is heated from the outside, the thicker the finishing material 100's thickness (length of protrusion from the exterior material 90) L1, the more difficult it is for heat to be transferred to other parts of the exterior wall 1, improving its fire resistance. However, if the finishing material 100 is too thick, the weight of the finishing material 100 increases the pull-out force of the fastening material 110. If the fastening material 110 is pulled out and the finishing material 100 falls, the fire resistance of the exterior wall 1 will decrease. In consideration of this, the thickness L1 of the finishing material 100 is set to 90 mm or less. Note that the numerical value of the thickness L1 of the finishing material 100 may take into account a tolerance, for example, a tolerance of ±9 mm. By keeping the thickness L1 of the finishing material 100 at 90 mm or less, the generation of pull-out force of the fastening material 110 can be suppressed.

[0039] Furthermore, when the exterior wall 1 is heated from the outside, the larger the vertical length of the gaps between the finishing materials 100 (the direction in which the finishing materials 100 are arranged), i.e., the larger the openwork width L2, the easier it is for heat to be transferred through the gaps to other parts of the exterior wall 1, thereby reducing the fire resistance of the exterior wall 1. Taking this into consideration, the openwork width L2 of the finishing material 100 is set to 50 mm or less (see Figure 2(a)). The numerical value of the openwork width L2 of the finishing material 100 may take into account a tolerance, for example, a tolerance of ±5 mm. This makes it difficult for heat from the outside of the exterior wall 1 to be transferred to other parts of the exterior wall 1, thereby improving the fire resistance of the exterior wall 1. The openwork width L2 of the finishing material 100 may also be 0 mm. That is, the finishing materials 100 may be arranged so that they abut each other, as shown in Figure 2(b).

[0040] Furthermore, the finishing material 100 is fastened to the exterior material 90 by fastening materials 110 that are driven into the furring strips 70 from the outside of the finishing material 100. Therefore, when the exterior wall 1 is heated from the indoor side, the heat transferred to the furring strips 70 can be discharged to the outside via the fastening materials 110, thereby improving the fire resistance of the exterior wall 1.

[0041] By attaching the finishing material 100 to the exterior material 90 according to the above specifications, the design of the exterior wall 1 can be improved, and at the same time, the fire resistance performance can be improved.

[0042] Hereinafter, examples of patterns for attaching the finishing material 100 will be described with reference to FIGS.

[0043] The attachment pattern (arrangement) of the finishing material 100 is not particularly limited and can be determined according to the design. For example, as shown in FIG. 3(a), one finishing material 100 may be attached to the exterior material 90 (direct attachment). As shown in FIG. 3(b), gaps (joints) may be provided between the finishing materials 100 (open joints). As shown in FIG. 3(c), one finishing material 100 may be attached to the exterior material 90 as the first layer, and the finishing materials 100 may be butted together without gaps (joints) in the second layer (butted joints). As shown in FIG. 3(d), one finishing material 100 may be attached to the exterior material 90 as the first layer, and the finishing materials 100 may be butted together without gaps (joints) in the second layer (open joints).

[0044] As shown in FIG. 4(a), the first layer may be a single sheet of finishing material 100 attached to the exterior material 90, the second layer may be abutted together without gaps (joints), and the third layer may have gaps (joints) between the finishing materials 100 (butt joint + batten). As shown in FIG. 4(b), the first layer may be a single sheet of finishing material 100 attached to the exterior material 90, the second layer may have gaps (joints) between the finishing materials 100, and the third layer may close the gaps in the second layer and have gaps (joints) between the finishing materials 100 (Yamato-bari). As shown in FIG. 4(c), the first layer may be a single sheet of finishing material 100 attached to the exterior material 90, and the second layer may be a stack of finishing materials 100 at an angle (Yoroi-bari). Also, as shown in Figure 4(d), the first layer may be a single piece of finishing material 100 attached to the exterior material 90, the second layer may be a stack of finishing materials 100 at an angle, and the third layer may be a single piece of finishing material 100 attached to the second layer (armor cladding + edging).

[0045] As shown in Figures 3(c), 3(d), and 4(a) to 4(d), when the finishing material 100 is made up of two or more layers, the total thickness L3 is set to 90 mm or less (±9 mm), which suppresses the generation of pull-out force of the fastening material 110 and ultimately improves fire resistance.

[0046] As described above, the exterior wall 1 according to this embodiment has the following features: An exterior material 90; The finishing material 100 is provided on the surface of the exterior material 90, The length L1 of the finishing material 100 projecting from the exterior material 90 is 90 mm or less.

[0047] This configuration can improve the fire resistance. Specifically, by setting the protruding length L1 of the finishing material 100 to 90 mm or less, it is possible to suppress the generation of pull-out force of the fastening material 110. This makes it possible to improve the fire resistance of the exterior wall 1. in particular,

[0048] In addition, the finishing material 100 is A plurality of the electrodes are arranged in a predetermined direction (vertical direction), The length (openwork width) L2 of the gap between the finishing materials 100 in the specified direction is 50 mm or less.

[0049] This configuration can further improve the fire resistance. Specifically, since it is possible to suppress the penetration of heat through gaps between the finishing materials 100, it is possible to further improve the fire resistance of the exterior wall 1.

[0050] Moreover, the exterior wall 1 according to this embodiment is A furring strip 70 to which the exterior material 90 is fixed; A fastening material 110 that fastens the finishing material 100 to the exterior material 90 by being driven into the furring strip 70 from the outside of the finishing material 100; It is equipped with the following.

[0051] This configuration can further improve the fire resistance. Specifically, heat transferred to the furring strips 70 can be discharged to the outside via the fastening material 110, thereby further improving the fire resistance of the exterior wall 1.

[0052] In addition, in the exterior wall 1 according to this embodiment, The exterior material 90 is mortar, The finishing material 100 is made of wood, The fastener 110 is made of metal.

[0053] This configuration can further improve the fire resistance of the exterior wall 1 in which the exterior material 90 is made of mortar, the finishing material 100 is made of wood, and the fastening material 110 is made of metal.

[0054] Moreover, the exterior wall 1 according to this embodiment is The waterproofing material 120 is provided between the finishing material 100 and the exterior material 90.

[0055] This configuration can further improve waterproof performance. Specifically, it is possible to prevent water from entering between the finishing material 100 and the exterior material 90 and into the interior of the exterior wall 1 through holes for inserting the fastening material 110 of the exterior material 90.

[0056] The finishing material 100 is provided in multiple layers, The total thickness L3 of the multiple layers of the finishing material 100 is 90 mm or less.

[0057] This configuration can improve the design and fire resistance.

[0058] Although the embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0059] For example, in this embodiment, the finishing material 100 is arranged with its longitudinal direction facing the extension direction of the exterior wall 1, but the orientation of the finishing material 100 is not limited to this and can be in any direction, for example, it may be arranged with its longitudinal direction facing up and down.

[0060] Furthermore, in this embodiment, the additional heat insulating material 60 is provided, but it does not necessarily have to be provided. [Explanation of symbols]

[0061] 1. Exterior wall 70 Fusuri 90 Exterior materials 100 Finishing Materials 110 Fasteners 120 Waterproof material

Claims

1. Exterior materials and The method further includes providing a finishing material on the exterior surface of the exterior material, the finishing material being provided on the exterior surface of the exterior material. The protruding length of the finishing material from the exterior material is 90 mm or less, The finishing material is A plurality of the electrodes are provided so as to be aligned in a predetermined direction, The exterior material is visible from the outdoor side through the gaps between the finishing materials, and the length of the gaps in the predetermined direction is 50 mm or less. outer wall.

2. A furring strip to which the exterior material is fixed; A fastening material that fastens the finishing material to the exterior material by being driven into the furring strip from the outside of the finishing material; Equipped with The exterior wall of claim 1 .

3. The exterior material is mortar, The finishing material is made of wood, The fastening material is made of metal. The exterior wall according to claim 2.

4. A waterproof material is provided between the finishing material and the exterior material. An exterior wall according to any one of claims 1 to 3.

5. The finishing material is provided in multiple layers, The total thickness of the finishing material of the plurality of layers is 90 mm or less; An exterior wall according to any one of claims 1 to 4.

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