Exterior wall materials and construction

Abstract

To provide an outer wall of a building using wooden exterior wall materials, which can realize an original and excellent design while improving the ease of maintenance work when only a part of the exterior wall materials is detached. [Solution] The exterior wall material 1 is made of a long, plank-shaped wooden board that is attached to the outside of a building's structural body 100, and on the surface that is placed on the outside of the building, a number of groove-like recesses 10 into which screws 90 can be inserted for fastening the exterior wall material 1 to the structural body 100 are provided, each extending in the longitudinal direction and lined up in the lateral direction at intervals from each other, and between both ends of the lateral direction on the surface and adjacent groove-like recesses 10, a batten-like design portion 20 that is wider than the groove-like recesses 10 is formed so as to extend in the longitudinal direction.

Description

[Technical field]

[0001] The present invention relates to an exterior wall material that is attached to the outside of a building's framework, and to an exterior wall structure using the same. [Background technology]

[0002] In buildings such as houses, wooden exterior wall materials made of siding are sometimes used. In the construction of this type of exterior wall material, a so-called "vertical installation" in which multiple vertically long siding boards are arranged horizontally, or a so-called "horizontal installation" in which multiple horizontally long siding boards are arranged vertically, are usually adopted. Summary of the Invention [Problem to be solved by the invention]

[0003] However, in both vertical and horizontal installation, there are limitations to the pursuit of originality in exterior wall designs due to the construction constraints of lining multiple paneling without any gaps.

[0004] In addition, in a typical construction, each panel is fixed to the building frame at one edge with a screw or nail, and the next panel is attached so as to cover the screw or nail. Therefore, there is a problem that the replacement work of only a specific panel becomes complicated in the maintenance of the exterior wall.

[0005] Therefore, the objective of this invention is to realize an innovative and excellent design for the exterior walls of a building using wooden exterior wall materials, while improving the ease of maintenance work when removing and attaching only some of the exterior wall materials. [Means for solving the problem]

[0006] The exterior wall material of the present invention is made of a long wooden plate that is attached to the outside of a building's structure, and is characterized in that on the surface that is placed on the outside of the building, a number of groove-like recesses, into which screws can be inserted to fasten the exterior wall material to the structure, are provided, each extending in the longitudinal direction and aligned in the lateral direction at intervals from each other, and between both ends of the lateral direction of the surface and adjacent groove-like recesses, a batten-like design portion wider than the groove-like recesses is formed so as to extend in the longitudinal direction.

[0007] In the exterior wall structure of the present invention, a number of exterior wall materials made of long wooden planks are attached to the outside of a building's main structure so that they are lined up in the short side direction, and a number of groove-shaped recesses are provided on the outer surface of each of the exterior wall materials, each extending in the longitudinal direction and lined up in the short side direction at intervals from each other, and between both ends of the short side direction on the surface of each of the exterior wall materials and adjacent groove-shaped recesses, a batten-shaped design portion wider than the groove-shaped recesses is formed so as to extend in the longitudinal direction, and each of the exterior wall materials is fixed to the main structure by screws inserted into the groove-shaped recesses. Effect of the Invention

[0008] According to this invention, the exterior wall material has multiple lattice-like design parts that look like wooden lattices, which realizes a novel and excellent design. In addition, the exterior wall material is fixed by screws inserted into groove-like recesses on the surface of the exterior wall material, making it easy to remove and install the screws. Therefore, regardless of the skill of the worker, it is easy to remove only the exterior wall material that requires maintenance and install only the exterior wall material after replacement or repair. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is an enlarged perspective view of a portion of an exterior wall material according to an embodiment of the present invention. [Diagram 2] 2 is a front view showing the entire exterior wall material and adjacent exterior wall materials. FIG. [Diagram 3]FIG. 2 is a cross-sectional view showing the exterior wall material and an exterior wall structure using the same. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Note that the following description is merely exemplary in nature and is not intended to limit the present invention, its application, or its uses.

[0011] With regard to the attached drawings, the perspective view of Fig. 1 shows an enlarged portion of the upper end side of the exterior building material 1. In the front view of Fig. 2, the entire exterior building material 1 as viewed from slightly diagonally above is shown in solid lines, and a pair of exterior building materials 1 (1A, 1B) arranged adjacently on both sides of it are shown in virtual lines (two-dot chain lines). In the cross-sectional view of Fig. 3, the exterior building material 1 and its surrounding area as viewed from above are shown diagrammatically, and portions of the adjacent exterior building materials 1 (1A, 1B) are shown in virtual lines (two-dot chain lines).

[0012] [Exterior wall material composition] The configuration of an exterior building material 1 according to one embodiment of the present invention will be described with reference to Figs.

[0013] The exterior wall material 1 is made of wood 2 that is attached to the outside of the building frame 100 (e.g., pillars, studs, girders, etc.). The type of wood 2 used is, for example, red cedar. However, in the present invention, the type of wood 2 is not limited to this.

[0014] The wooden piece 2 has a long plate shape. That is, the exterior wall material 1 has a front surface 3 that is disposed on the outside of the building, a back surface 4 (disposed on the inside of the building) located on the opposite side to the front surface 3, an end face 5 on one side in the short direction, an end face 6 on the other side in the short direction, an end face 7 on one side in the long direction, and an end face 8 on the other side in the long direction (see FIG. 2).

[0015] In this embodiment, the exterior wall material 1 is constructed as a vertically elongated member so that its longitudinal direction coincides with the vertical direction. That is, the end face 7 on one side of the longitudinal direction of the exterior wall material 1 constitutes the upper end face, and the end face 8 on the other side of the longitudinal direction constitutes the lower end face. However, this invention does not prevent the exterior wall material 1 from being constructed as a horizontally elongated member.

[0016] A plurality of groove-shaped recesses 10 are provided on the surface 3 of the exterior building material 1, each extending in the longitudinal direction and aligned in the lateral direction at intervals. In this embodiment, two groove-shaped recesses 10 are provided, each extending linearly at a position outside the center in the lateral direction of the exterior building material 1, and arranged parallel to each other. Each groove-shaped recess 10 is formed over the entire length of the exterior building material 1, from the upper end face 7 to the lower end face 8, by processing the wooden material 2.

[0017] In the present invention, the number of groove-like recesses 10 can be changed as appropriate, but it is preferable that an even number of groove-like recesses 10 are provided so that they are each positioned outside the center in the short side direction of the exterior wall material 1. This allows the required number of groove-like recesses 10 to be formed in positions that avoid the center in the short side direction of the exterior wall material 1, where cracks are likely to occur.

[0018] A plurality of batten-shaped design portions 20 are formed on the remaining portion of the surface 3 of the exterior building material 1 other than the groove-shaped recesses 10. That is, on the surface 3 of the exterior building material 1, batten-shaped design portions 20 wider than the groove-shaped recesses 10 are formed to extend in the longitudinal direction at both ends in the short side direction and between adjacent groove-shaped recesses 10.

[0019] In this embodiment, three bar-shaped design parts 20 are provided so as to extend linearly at the center and both ends in the short side direction and to be arranged parallel to each other. However, in this invention, the number of bar-shaped design parts 20 can be appropriately changed according to the number of groove-shaped recesses 10 described above.

[0020] In this way, multiple batten-like design parts 20 are formed at equal intervals on the surface 3 of the exterior building material 1, so that the exterior building material 1 as a whole has a lattice-like appearance consisting of multiple vertical battens. Note that because the gaps between adjacent batten-like design parts 20 are filled by the bottoms of the groove-like recesses 10, the waterproof sheet or other underlying material is not visible through the gaps between the batten-like design parts 20, even though the exterior building material has a lattice-like appearance.

[0021] An engaging protruding piece 30 is provided on one end face 5 in the short side direction of the exterior building material 1, protruding outward in the short side direction from an edge on the back face 4 side. The engaging protruding piece 30 is formed, for example, by cutting out a corner portion on the front face 3 side of the wooden piece 2. In other words, the engaging protruding piece 30 extends in the short side direction along the back face 4 of the exterior building material 1. The engaging protruding piece 30 is provided over the entire length of the exterior building material 1, from the upper end face 7 to the lower end face 8.

[0022] An engagement recess 40 is provided on an edge portion on the back surface 4 side of the end face 6 on the other short side of the exterior building material 1. The engagement recess 40 is formed, for example, by cutting out a corner portion on the back surface 4 side of the wooden piece 2. In other words, the engagement recess 40 is open on the back surface 4 side of the exterior building material 1. The engagement recess 40 is provided over the entire length of the exterior building material 1, from the upper end face 7 to the lower end face 8.

[0023] The width direction (short side direction) and thickness direction dimensions of each part of the exterior wall material 1 will be described with reference to Figure 3. The length direction (longitudinal direction) dimension of the exterior wall material 1 is adjusted as appropriate according to the dimensions of the exterior wall of the building. The specific dimensional values ​​described below are merely examples and can be changed as appropriate according to the required workability, design, etc.

[0024] In terms of the width direction (short side direction), the width W0 of the entire exterior building material 1 is, for example, 110 mm. All of the batten-shaped design portions 20 have a uniform width W1. Specifically, the width W1 of the batten-shaped design portions 20 is, for example, 27 mm. The width W2 of the groove-shaped recess 10 is a width into which a screw 90 for fastening the exterior building material 1 to the building frame 100 can be inserted, and is larger than the diameter of the head of the screw 90 used. Specifically, the width W2 of the groove-shaped recess 10 is, for example, 7 mm.

[0025] The protrusion amount (width) P1 of the engaging protrusion piece 30 is smaller than the width W1 of the bar-shaped design portion 20 and larger than the width W2 of the groove-shaped recess 10. Specifically, the protrusion amount P1 of the engaging protrusion piece 30 is set to, for example, 15 mm. The depth (width) D1 of the engaging recess 40 is larger than the width W2 of the groove-shaped recess 10. Moreover, the depth D1 of the engaging recess 40 is smaller than the protrusion amount P1 of the engaging protrusion piece 30. Specifically, the depth D1 of the engaging recess 40 is set to, for example, 10 mm. The difference (P1-D1) between the protrusion amount P1 of the engaging protrusion piece 30 and the depth D1 of the engaging recess 40 is smaller than the width W2 of the groove-shaped recess 10, for example, 5 mm.

[0026] In the thickness direction, the wall thickness (total thickness) T0 of the exterior building material 1 is, for example, 27 mm. The depth D2 of the groove-shaped recess 10 is greater than half the wall thickness T0 of the exterior building material 1. Specifically, the depth D2 of the groove-shaped recess 10 is approximately two-thirds the wall thickness T0 of the exterior building material 1, and is, for example, 18 mm. Therefore, the thickness T1 of the portion of the exterior building material 1 where the groove-shaped recess 10 is formed corresponds to the difference (T0-D2) between the total wall thickness T0 and the depth D2 of the groove-shaped recess 10, and is, for example, 9 mm.

[0027] The width of the engaging projection 30 and the engaging recess 40 in the thickness direction of the exterior building material 1 is equal to the thickness T1 of the portion (thin portion) of the exterior building material 1 where the groove-like recess 10 is formed, and is set to, for example, 9 mm.

[0028] [Outer wall structure] Hereinafter, an exterior wall structure using the above-mentioned exterior building material 1 will be described with reference to Figs.

[0029] In the exterior wall structure of this embodiment, multiple exterior wall materials 1 are attached to the outside of the building's framework 100 so that they are lined up in the short side direction. Each exterior wall material 1 is attached to the building's framework 100 with the groove-shaped recesses 10 and batten-shaped design portions 20 oriented to extend in the vertical direction. This gives the entire exterior wall an appearance resembling a wooden lattice (see FIG. 2), achieving a novel and excellent design. In addition, rainwater and the like adhering to the exterior wall material 1 easily flows off without accumulating in the groove-shaped recesses 10, improving the durability of the exterior wall material 1.

[0030] However, in the present invention, the orientation of the exterior wall material 1 in the installed state is not limited to this, and the exterior wall material 1 may be installed on the building's main body 100 in an orientation such that the groove-shaped recess 10 and the batten-shaped design portion 20 extend horizontally.

[0031] Each exterior wall material 1 is fixed to the building frame 100 by a screw 90 inserted into the groove-shaped recess 10. The exterior wall material 1 is fixed only at the position of the groove-shaped recess 10, and the engaging protruding piece 30 is not fixed to the frame 100.

[0032] When fixing, the screws 90 can be easily screwed in from the front of the exterior building material 1. Furthermore, when construction of the exterior building material 1 is completed, the screws 90 will not be obscured by adjacent exterior building materials 1A, 1B, etc. Therefore, the screws 90 can be easily removed from the front of the exterior building material 1 for maintenance of the exterior building material 1. Therefore, workers can easily remove only the exterior building material 1 that requires maintenance. Thereafter, workers can easily install only the replaced or repaired exterior building material 1.

[0033] When the fixing of the exterior wall material 1 is complete, the heads of the screws 90 are housed in the bottom of the groove-like recess 10, which has sufficient depth D2 as described above (see FIG. 3), and are therefore difficult to see from the outside. In other words, when looking at the entire exterior wall, the heads of most of the screws 90, except for the one directly in front, are hidden by the wall of the groove-like recess 10 and cannot be seen, which prevents the screws 90 from damaging the design.

[0034] In each exterior building material 1, the batten-shaped design portion 20 is located in the center of the short side (width direction) where cracks are likely to occur, and the position of the thin-walled portion (the position where the screw 90 is fastened) due to the formation of the groove-shaped recess 10 is shifted from the center of the short side of the exterior building material 1. Wood cracks are likely to occur in the thin-walled portion, and cracks occurring in the thin-walled portion can suppress cracks in the thick-walled portion. Therefore, in the exterior building material 1, cracks are likely to occur in the groove-shaped recess 10, but are unlikely to occur in the batten-shaped design portion 20. In particular, since cracks in the wood 2 are likely to occur along the grain, long cracks along the length of the batten-shaped design portion 20 are prevented from occurring. Furthermore, even if a small crack occurs in the groove-shaped recess 10, it is not noticeable.

[0035] Each exterior building material 1 is connected to the adjacent exterior building materials 1A, 1B on both sides in the following engaged state: A part of the tip side of the engaging protrusion 30 of the exterior building material 1 shown by the solid line in Fig. 3 fits into the engaging recess 40 of the adjacent exterior building material 1A on one side, and a part of the tip side of the engaging protrusion 30 of the adjacent exterior building material 1B on the other side fits into the engaging recess 40 of the exterior building material 1.

[0036] As a result, a groove-like gap 50 is formed on the surface 3 of the exterior building material 1 between a pair of opposing end faces 5, 6 at each connection. The width S1 of the groove-like gap 50 is approximately equal to the width W2 of the groove-like recess 10. The groove-like gap 50 also has the same depth D2 as the groove-like recess 10. Therefore, the groove-like gap 50 has the same appearance as the groove-like recess 10. As a result, a lattice-like design can be realized in the entire exterior wall in which a plurality of exterior building materials 1 are installed side by side, with all of the lattice-like design portions 20 lined up at approximately equal intervals.

[0037] In addition, at each connection portion, a gap 60 is provided between the tip of the engaging protruding piece 30 and the bottom surface of the engaging recess 40 facing the tip. The gap 60 functions as a so-called "play" in the short-side direction of the exterior building material 1. The width of the gap 60 corresponds to a width (D1+S1-P1) obtained by subtracting the protruding amount P1 of the engaging protruding piece 30 from the sum of the depth D1 of the engaging recess 40 and the width S1 of the groove-shaped gap 50, and is set to, for example, 2 mm. The connection portion of the exterior building material 1 in which such a gap 60 is secured is adaptable to dimensional fluctuations (especially in the short-side direction) of the exterior building material 1 caused by contraction and expansion and deformation (so-called "unrest") of the wood material 2 due to humidity changes.

[0038] Furthermore, in this embodiment, red cedar is used as the wood 2 of the exterior wall material 1, which not only achieves a color-uniform appearance, but also provides excellent durability equivalent to that of cypress and other woods.

[0039] In addition, the adoption of the exterior wall structure according to this embodiment has various advantages, such as the realization of revolutionary designs that could not be achieved with conventional wooden exterior walls, and is therefore expected to promote demand for wooden exterior walls. This will promote the use of thinned timber such as cedar, and ultimately promote the establishment of a forest cycle. This can contribute to the prevention of natural disasters such as landslides and the prevention of global warming.

[0040] The present invention has been described above with reference to the above-mentioned embodiments, however, the present invention is not limited to the above-mentioned embodiments, and changes to the specific configuration of the exterior wall material and exterior wall structure (e.g., changes to the shape of details, addition of parts, etc.) may be made as necessary, provided that such changes do not deviate from the scope of the utility model registration claims. [Explanation of symbols]

[0041] 1 Exterior wall material 2 wood 3. Surface of exterior wall material 4 Back side of exterior wall material 5 End face on one side of the short side 6 End face on the other side of the short side 10 Groove-shaped recess 20. Rail-shaped design 30 Engagement protrusion piece 40 Engagement recess 50 Groove-shaped gap 60 Gap 90 bis 100 Building Structure

Claims

1. An exterior wall material made of long wooden boards that is attached to the outside of a building's framework, A surface disposed on the outside of the building is provided with a plurality of groove-shaped recesses into which screws for fastening the exterior wall material to the framework can be inserted, the groove-shaped recesses extending in the longitudinal direction and spaced apart from each other in the lateral direction; A bar-shaped design portion wider than the groove-shaped recess is formed so as to extend in the longitudinal direction at each of both ends in the short side direction of the surface and between adjacent groove-shaped recesses. An exterior wall material characterized by:

2. The depth of the groove-shaped recess is greater than half the plate thickness of the exterior wall material. The exterior wall material according to claim 1 .

3. An engagement protruding piece is provided on one end surface in the short side direction, protruding outward in the short side direction from an edge portion on a back side located opposite to the front side, an engagement recess having a depth smaller than the projection amount of the engagement protrusion piece is provided on an edge portion of the back surface side of the end surface on the other side in the short side direction; The exterior wall material according to claim 1 .

4. a difference between the protruding amount of the engagement protrusion piece and the depth of the engagement recess is smaller than a width of the groove-shaped recess; 4. The exterior wall material according to claim 3.

5. The groove-shaped recesses are provided in an even number, and are each disposed outside the center in the short side direction. The exterior wall material according to claim 1 .

6. The wood is red cedar. The exterior wall material according to any one of claims 1 to 5.

7. An exterior wall structure in which a plurality of exterior wall materials made of long wooden boards are attached to the outside of a building's framework so as to be arranged in the short side direction, A plurality of groove-shaped recesses are provided on the outer surface of each of the exterior wall materials so as to extend in the longitudinal direction and to be aligned in the lateral direction at intervals from each other, A lattice-shaped design portion wider than the groove-shaped recess is formed so as to extend in the longitudinal direction between both ends of the short side direction of the surface of each of the exterior wall materials and between adjacent groove-shaped recesses, Each of the exterior wall materials is fixed to the structure by a screw inserted into the groove-shaped recess. An exterior wall structure characterized by:

8. In each of the exterior wall materials, an engaging protruding piece is provided on one end face in the short side direction, protruding outward in the short side direction from an edge portion on the back side located opposite the front side, and an engaging recess having a depth smaller than the protruding amount of the engaging protruding piece is provided on the edge portion on the back side of the end face on the other side in the short side direction, At the connection portion of a pair of adjacent exterior wall materials, the engaging protruding piece of one of the exterior wall materials is fitted into the engaging recess of the other exterior wall material so that a groove-shaped gap is formed on the surface between a pair of opposing end faces. The exterior wall structure according to claim 7.

9. The width of the groove-shaped gap is approximately equal to the width of the groove-shaped recess. The exterior wall structure according to claim 8.

10. In each of the exterior wall materials, the engaging protrusion is not fixed to the building structure, and a gap is provided between a tip of the engaging protrusion and a bottom surface of the engaging recess facing the tip. The exterior wall structure according to claim 8 or 9.

11. Each of the exterior wall materials is attached to the structure in such a manner that the groove-shaped recess and the batten-shaped design portion extend in the vertical direction. The exterior wall structure according to any one of claims 7 to 9.

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