JPH1082155A - Structure of plywood for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a necessity of bonding waterproof paper after a plywood and a plywood for structure are spread and provided on an external wall part of a wooden building to reduce much time and labor, shorten construction term, and improve the waterproof property of joints of mutual plywoods which are provided in parallel. SOLUTION: Waterproof paper 2 (for example, asphalt roofing) having larger area than an area of a plate face is stuck on the plate face on one side of a plywood for structure 1 in such a manner that it overhangs from a peripheral fringe of the plate face by predetermined width in advance. Consequently, it is possible to eliminate a necessity of bonding the waterproof paper after the plywood for structure 1 is spread and provided in an external wall part of a wooden building, reduce time and labor required for the construction greatly, and shorten construction term by providing a sticking process of the plywood for structure merely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plywood or a plywood for structural use (plywood) stretched over an outer wall portion or the like of a wooden building.
In particular, it relates to a plywood in a building provided with waterproofness by waterproof paper.

[0002]

2. Description of the Related Art Waterproof paper is attached to the outer surface of a plywood or structural plywood stretched over an outer wall portion of a wooden building or the like in order to increase waterproofness. In this case, the rolled waterproof paper is pulled out from the roll, and is sequentially attached to the outer surface of a plywood or a structural plywood stretched over an outer wall portion or the like of a wooden building.

[0003]

However, in such a conventional waterproof paper pasting method, a waterproof paper is pasted after a plywood or a structural plywood is stretched over an outer wall portion of a wooden building or the like. Therefore, two steps, ie, a step of attaching a plywood or structural plywood and a step of attaching a waterproof paper are required, and there is a problem that a great deal of labor is required and a construction period is lengthened.

[0004] The present invention has been made in view of such conventional problems, and eliminates the need to attach waterproof paper after plywood or structural plywood is stretched over the outer wall of a wooden building or the like. It is an object of the present invention to reduce a great deal of labor, shorten a construction period, and improve waterproofness of a joint between plywoods arranged side by side.

[0005]

In order to achieve the above object, an invention according to claim 1 is a plywood for a building, in which one side of the plywood is provided with waterproof paper having an area larger than the area of the board. The building plywood had a structure in which the plywood was previously adhered so as to protrude by a predetermined width from the periphery of the plate surface.

According to a second aspect of the present invention, at the joint between the plywoods arranged side by side, the overhanging portion of the waterproof paper of one plywood is overlapped with the waterproof paper side plate surface and the opposite side plate surface of the peripheral portion of the other plywood. , The other plywood waterproof paper overhang,
One of the plywoods was superposed on the waterproof paper surface on the side of the waterproof paper side plate.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an embodiment of a structural plywood as a plywood in a building of the present invention. That is, in FIG. 1, the structural plywood 1 is nailed to a frame (not shown) formed by building members on the wall of the building.

The structural plywood 1 is formed by laminating and bonding a plurality of thin plates made of wood.
Here, waterproof paper (for example, asphalt roofing) 2 having an area larger than the surface area of the structural plywood 1 is pasted on the one surface of the structural plywood 1 so as to project a predetermined width from the periphery of the surface of the plate. I have. In this case, a square structural plywood 1
On the other hand, waterproof paper 2 which is also square but larger than the structural plywood 1 is attached.

FIG. 2 is a view for explaining how to treat the waterproof paper 2 when the structural plywoods 1 are juxtaposed and are struck against a frame formed by building members on the wall of a building. . That is, at the joint between the structural plywoods 1 arranged side by side, the overhanging portion 2A of the waterproof paper 2 of one of the structural plywoods 1
Is overlaid on the opposite side of the surface of the waterproof plywood of the other side of the structural plywood 1, and the overhanging portion 2 A of the waterproof paper 2 of the other side of the structural plywood 1 is (FIG. 2 (A), the structural plywood 1 is set, and finally joined as shown in FIG. 2 (B)).

According to the structure of the structural plywood 1 with waterproof paper having such a configuration, the structural plywood 1 is attached to the structural plywood 1 in advance so that the structural plywood 1 is stretched on the outer wall portion of the wooden building or the like. After installation, there is no need to attach waterproof paper, and only the process of attaching structural plywood is required. This eliminates the two processes of attaching plywood and structural plywood and attaching waterproof paper. And shortening the construction period.

At the joint between the structural plywoods 1 arranged side by side, the overhanging portion 2A of the waterproof paper 2 of one structural plywood 1 is overlapped with the back surface of the peripheral edge of the other structural plywood 1, and Overhang portion 2 of waterproof paper 2 of structural plywood 1
A is superimposed on the surface of the waterproof paper 2 at the peripheral edge of one of the structural plywoods 1, so that the joints between the structural plywoods 1 arranged side by side can be reliably waterproofed, and the waterproofness can be improved. Can be improved.

In the above embodiment, an example in which the present invention is applied to a structural plywood has been described. However, it is needless to say that the present invention can be similarly applied to a general plywood.

[0013]

As described above, according to the first aspect of the present invention, the waterproof paper is attached to the plywood in advance, so that the plywood is stretched on the outer wall portion of the wooden building or the like, and then the waterproof paper is attached. It is no longer necessary to attach the, so that a great deal of labor can be reduced and the construction period can be shortened.

According to the second aspect of the present invention, it is possible to reliably waterproof the seam between the juxtaposed plywoods, and it is possible to further improve the waterproofness.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a structural plywood as one embodiment of a plywood of the present invention.

FIG. 2 is a cross-sectional view for explaining a waterproof paper treatment of the structural plywood.

[Explanation of symbols]

 1 Structural plywood 2 Waterproof paper 2A Overhang

Claims (2)

[Claims] 1. A plywood for a building, characterized in that waterproof paper having an area larger than the surface area of the plywood is pasted on one of the surfaces of the plywood so as to protrude a predetermined width from the periphery of the surface of the plywood. Plywood structure for buildings. 2. At the joint between the plywoods arranged side by side, the overhanging portion of the waterproof paper of one plywood is overlapped with the waterproof paper side plate surface of the peripheral portion of the other plywood and the opposite side of the other plywood, and The structure of a plywood for a building according to claim 1, wherein the overhang portion of the waterproof paper is overlapped with a waterproof paper surface on a waterproof paper side plate surface at a peripheral portion of one of the plywoods.