Angle rafter receiving material and ventilation structure at top of angle rafter

Abstract

To provide an angle rafter receiving material capable of forming a ventilation layer at the top of the angle rafter at low cost and with ease.SOLUTION: An angle rafter receiving material is arranged on an angle rafter and receives a sheathing plywood in a roof structure of a wooden house, and is rectangular in plan view and cross-section view, respectively, and is composed of two parallel receiving material main bodies and a sheet material that is arranged between bottom surfaces of the two parallel receiving material main bodies and is bonded to each of the two receiving material main bodies.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a corner post support member for forming a ventilation layer above a corner post in a wooden house, and a ventilation structure for the upper part of the corner post. [Background technology]

[0002] Traditionally, in typical hipped-roof wooden houses, the corner posts and the tops of the rafters are flush with each other and support the plywood. However, because both sides of the corner post are separate spaces, air does not ventilate above the corner, causing it to stagnate and making it easy for the temperature and humidity to rise.

[0003] In recent years in particular, in densely populated areas of large cities and other areas, restrictions on building height have come into effect in order to ensure sunlight for neighboring properties to the north, leading to the adoption of sloped ceilings and lowered main buildings. With sloped ceilings and sagging roofs, the living space is directly below the roof, so an increase in temperature at the corners has a significant impact on the living space.

[0004] Patent Documents 1 and 2 disclose known structures for providing an air passage along a corner piece. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2001-32431 A [Patent Document 2] JP 2019-65616 A Summary of the Invention [Problem to be solved by the invention]

[0006] Patent Document 1 describes forming an air flow passage by cutting out a corner post, but this requires cutting out the corner post in a special shape, which results in high costs. In addition, Patent Document 2 describes a configuration in which a ventilation material is placed above the corner post, but the sheathing board is offset by more than the width of the corner post and supported by the rafters. Furthermore, because the sheathing board has a special processed shape, it is difficult to form it using a pre-cut processing machine, and it is necessary to process it on-site.

[0007] The present invention has been made in consideration of the above points, and its object is to provide a corner post support material and a ventilation structure for the upper part of the corner post that can inexpensively and easily form a ventilation layer above the corner post. [Means for solving the problem]

[0008] The present invention provides a corner post support material for use in the roof structure of a wooden house, which is placed on corner posts to receive sheathing plywood, the corner post support material comprising two parallel support body parts, each of which is rectangular in plan and cross-sectional view, and a sheet material which is placed across the bottom surfaces of the two parallel support body parts and adhered to each of the support body parts. The sheet material may be cuttable, and the two receiving materials may be separated by cutting the sheet material between the two receiving material bodies. The bottom surface of the receiving material body may be provided with one or a plurality of parallel grooves.

[0009] The present invention also provides a ventilation structure for the upper part of a corner post in the roof structure of a wooden house, characterized in that a corner post support material of the present invention is placed on the upper surface of the corner post, the top surface of the corner post supports the sheathing plywood, and a ventilation layer is formed between the upper surface of the corner post and the underside of the sheathing plywood. The upper surface of the rafter fixed to the side of the corner post may be located higher than the upper surface of the corner post, and the upper surface of the rafter may receive the sheathing plywood. At the intersection of the two corner posts and the ridge post, the corner post support material to be placed on the upper surface of each corner post may be obtained by cutting the sheet material between the two support material bodies and dividing it into two support materials, and the two support materials may be positioned with a staggered arrangement so that the distance between the end faces where the two corner posts meet and the ends of the two support materials is approximately equal. Effect of the Invention

[0010] The present invention has at least one of the following advantages. <1> By forming a ventilation layer above the corner post, it is possible to prevent air from stagnating at the top of the corner ridge, which can lead to an increase in temperature and humidity. <2> The ventilation layer can be formed simply by placing a corner post support material on the corner post, and no processing of the corner post is required. [Brief description of the drawings]

[0011] [Figure 1] An explanatory diagram of the ventilation structure above the corner post using the corner post support material of the present invention. [Diagram 2] Cross-sectional view of the ventilation structure above the corner post using the corner post support material of the present invention [Diagram 3] FIG. 1 is a perspective view of the corner support of the present invention; [Figure 4] FIG. 2 is an exploded perspective view of the corner support of the present invention; [Diagram 5] An explanatory diagram of the arrangement of corner support members of the present invention (1) [Figure 6] An explanatory diagram of the arrangement of corner support members of the present invention (2) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. EXAMPLES

[0013] <1> Overview of ventilation structure above corner posts The ventilation structure above the corner post of the present invention is a structure in which a corner post support material 1 is placed on the upper surface of a corner post 2 in the roof structure of a wooden house, and a ventilation layer V is formed above the corner post by supporting a sheathing plywood 3 thereon (Figures 1 and 2). The corner post receiving members 1 are arranged in a plurality of positions with gaps S of 100 to 150 mm provided in the longitudinal direction of the corner post.

[0014] <2> Corner wood receiving material The corner support 1 is made up of two parallel support bodies 11 and a sheet material 12 that connects the support bodies 11 (Figs. 3 and 4). The receiving material body 11 is made of resin or wood, and is a long member that is rectangular in plan view and cross section. The receiving material body 11 is provided with one or more parallel grooves 111 in the longitudinal direction of the bottom surface. The two receiving body portions 11 are arranged in parallel with a predetermined distance therebetween, and a sheet material 12 is disposed across the bottom surfaces of the receiving body portions 11. The sheet material 12 is bonded to each receiving body portion 11 and connected thereto. The support body 11 and the sheet material 12 are cuttable, and by cutting them, the length of the corner post support 1 can be adjusted on site.

[0015] <3> Ventilation layer The two support bodies 11 of the corner post support 1 are connected by a foldable sheet material 12 at a specified distance, so that when the corner post support 1 is placed on the top surface of the corner post 2, each support body 11 can be placed along the inclined surface of the top surface of the corner post 2. The grooves 111 on the bottom surface of the support body 11 act as anti-slip devices to prevent the corner post support 1 from falling off when it is temporarily placed on the top surface of the corner post 2. Also, because the anti-slip devices are the grooves 111, it is easy to adjust the placement position. The width of the support body 11 is configured to be shorter than the width of the inclined surface on the upper surface of the corner post 2. The upper surface of the rafter 4 arranged on the side of the corner post 2 is raised above the upper surface of the corner post 2 by the height of the support body 11 (for example, 12 mm), and the upper surface of the support body 11 and the upper surface of the rafter 4 are placed on the same plane to support the sheathing plywood 3. With this construction, a ventilation layer V is formed, surrounded by the upper surface of the corner post 2, the lower surface of the sheathing plywood 3, the side surface of the corner post support material 1, and the rafters 4. By simply placing the corner post support material 1 on the corner post 2, no processing of the corner post 2 is required, and the ventilation layer V can be formed above the corner post 2 inexpensively and easily. Forming the ventilation layer V above the corner post 2 makes it possible to prevent air from stagnating at the top of the corner ridge, which can lead to increases in temperature and humidity. Particularly in the case of a sloped ceiling or a sagging purlin, ventilation through the ventilation layer V above the corner post 2 can prevent a rise in temperature at the corner ridge and reduce the impact on the living space.

[0016] <4> Arrangement of corner support material at the top of the corner post At the intersection of the two corner posts 2 with the topmost ridge post 5, the sheet material 12 between the support body 11 of the corner post support material 1 placed on the upper surface of each corner post 2 can be cut and divided into two support body 11, and the two support body 11 can be arranged staggered so that the distance between the end face where the two corner posts 2 meet and the ends of the two divided support body 11 are approximately equal (the gap between the support body 11 placed on both sides is approximately 20 mm).

[0017] <5> Fixing corner supports with nails The corner support 1 is fixed with four nails 7 in total, two for each support body 11. At this time, the nails 7 are driven into and fixed to the part other than the width part of the rafter 4 so that the nails 7 do not interfere with the nails fixing the sheathing plywood 3. [Explanation of symbols]

[0018] 1 corner support, 11 support body, 111 groove, 12 sheet material 2 Sumiki 3. Plywood 4. Rafters 5 Ridgepole 6 hut bundle 7 nails

Claims

1. In the roof structure of a wooden house, a corner support material is placed on a corner post to support a sheathing plywood, The two support bodies are rectangular in plan and cross-sectional views and are arranged in parallel. A sheet material is arranged between the bottom surfaces of the two parallel receiving material bodies and adhered to each of the receiving material bodies. Corner wood receiving material.

2. The sheet material is cuttable; The sheet material between the two receiving material bodies can be cut to separate the two receiving materials. The corner support member according to claim 1.

3. The bottom surface of the receiving material body is provided with one or more parallel grooves. The corner support member according to claim 1.

4. A ventilation structure for the upper part of a corner beam in a roof structure of a wooden house, A corner support material according to any one of claims 1 to 3 is placed on the upper surface of the corner post, The top surface of the corner support member supports the sheathing plywood, A ventilation layer is formed between the upper surface of the corner piece and the lower surface of the sheathing plywood. Ventilated structure above the corner post.

5. The upper surface of the rafter fixed to the side surface of the corner post is higher than the upper surface of the corner post, The plywood is received on the upper surface of the rafter. The ventilation structure for the upper part of the corner piece according to claim 4.

6. At the intersection of the two corner posts and the ridge post, The corner support material to be placed on the upper surface of each of the corner posts is divided into two support bodies by cutting the sheet material between the two support bodies, The two receiving members are arranged in a shifted manner so that the distance between the end faces where the two corner pieces contact and the ends of the two receiving members is approximately equal. A ventilation structure for the upper part of a corner piece as claimed in claim 5.

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