JPH1037339A - Building heat insulating material and heat insulated structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve bending rigidity by adhering a woody plate which is a surface material such as floor board to a foamed synthetic resin plate which is a heat insulating material with an adhesive, and adhering a reinforcing member on the reverse side of the foamed synthetic resin plate. SOLUTION: On the reverse side of a woody plate 1 as a surface material such as plywood or veneer, foamed synthetic resin plates 2 of polystyrene foam or the like having a substantially rectangular parallelepiped plate form are adhered at equal intervals. A reinforcing member 3 formed of thin metal plate or incombustible paper is adhered to the whole reverse side of the foamed synthetic resin plates 2 to form a building heat insulating material A. The building heat insulating material A is arranged on floor joists 11 arranged at prescribed intervals on the sleeper 10 of a building in the crossed state thereto, and nailed from the woody plate 1 side toward the floor joist 11. Thus, the deflection per unit load is minimized, and the rigidity to bending of the heat insulating material can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to an improved architectural heat insulating material used for heat insulation of floors, walls, roofs and the like of structures, and
The present invention relates to a heat insulating structure using the same.

[0002]

2. Description of the Related Art In order to enhance heat insulation performance in a house or the like, a foamed synthetic resin having a substantially rectangular parallelepiped plate-like shape between joists on a floor or between trees on a roof or the like. Arrangement of architectural thermal insulation made of plate material is performed. After installing the architectural heat insulating material between them by appropriate means, the so-called heat insulating construction is performed by hitting a floor board or a floor base board as a surface material to a joist, or hitting a ceiling board or a field board to a bark. Will be FIG. 5 is an example of floor insulation construction,
A heat insulating material 20, which is a foam synthetic resin plate, is fitted in a space surrounded by the large-diameter 10 and the joist 11 so that the upper surface thereof is the same as the upper surface of the joist 11. Although not shown, a floorboard is nailed to the joist 11 and fixed thereon.

[0003] In a building, standard intervals (spans) of joists and timbers are determined. For example, when flooring is performed, the material and thickness of the floorboards or floorboards are determined by placing the floorboards or floorboards between the joists. In a fixed state,
The load applied thereto (impact load during walking, concentrated load due to static load of a piano or the like, etc.) is determined in consideration of how much the floor plate or floor base plate bends and whether the deflection is within an allowable value. In some cases, the material or thickness of the floorboard or floor baseboard is determined in advance, and the optimum span may be calculated and executed according to the material or thickness.
Even in the case of roofing, the material, thickness, and, in some cases, the span are selected in consideration of whether the ground board can withstand the load of the construction worker.

[0004] When performing heat insulation construction as shown in FIG.
A foam synthetic resin plate can also function as a load-carrying material, but in the normal case, the floor material, which is a surface material, is fixed to the joist, but is not integrated with the foam synthetic resin plate, and is combined with the floor material. Since slippage occurs with the resin plate material, it does not actively function as a load carrying member against a load from the upper surface.

An object of the present invention is to actively use a foamed synthetic resin plate used for heat insulation as a load carrying material, thereby reducing the amount of deflection per unit load of the floor or ceiling of a building. Either use a thinner material to provide the same flexural rigidity as before, or use the same thickness as before and use the same spacing (span) between structural members of a building like a joist or a rafter. Is to be able to be made wider.

[0006]

In order to solve the above-mentioned problems, the present inventors have conducted a number of experiments to find that a wooden board as a surface material such as a floorboard and a foamed synthetic resin board as a heat insulating material are used. By adhering with an adhesive, and further adhering a reinforcing member to the back surface of the foamed synthetic resin plate with an adhesive, it was perceived that the amount of deflection with respect to load was greatly improved, and the present invention was accomplished. .

That is, the heat insulating material for construction according to the present invention is:
A structural member having a first structural member disposed at an interval and a second structural member placed on the first structural member and disposed at an interval to intersect with the first structural member; A wood board is bonded to one side of a foamed synthetic resin board having a substantially rectangular parallelepiped plate shape, which is a heat insulating material to be attached, and has a width that can be just fitted between at least the adjacent second structural members. Further, a reinforcing member is bonded to the other surface of the foamed synthetic resin plate.

[0008] Preferably, a plurality of the foamed synthetic resin plates are adhered to the back surface of the woody plate as the surface material at predetermined intervals. In the present invention, the foamed synthetic resin plate having the substantially rectangular parallelepiped plate shape may be the same as the foamed synthetic resin plate used in the conventional heat insulation construction. In addition, the synthetic resin foam used for its production is
A foam obtained by foaming a styrene-based resin, a polyolefin-based resin, a hard urethane resin, a phenol resin, a polyisothianate resin, an epoxy resin, or the like, or a foam obtained by appropriately mixing these resins is preferably used.

The styrene-based resin may be a polymer having a styrene-based vinyl monomer such as styrene, methylstyrene, or dimethylstyrene as a main constituent unit.
A monomer composed of a copolymer containing at least 1% by weight, and which can be copolymerized with a styrene monomer, includes acrylic acid,
Examples thereof include methacrylic acid or esters thereof, acrylonitrile, methacrylonitrile, and maleic anhydride.

As the polyolefin resin, high-density polyethylene, low-density polyethylene, ethylene-vinyl acetate copolymer, ethylene-carboxylate copolymer,
Ethylene-carboxylic acid metal salt copolymer, crystalline propylene homopolymer, crystalline propylene-ethylene copolymer, crystalline propylene-ethylene diene terpolymer and the like can be mentioned.

In view of the rigidity (strength) against bending and compression, rigid foamed plastics such as extruded foam or bead foamed polystyrene foam are particularly preferred. In the present invention, as the wood board material as the surface material, usually, wood material used as a floor material or floor base material, a ceiling material or a field board, for example, plywood, veneer,
It may be a particle board or the like. The wood board as the surface material mainly carries a load from above.

In the present invention, as a reinforcing member, a thin metal plate having a thickness of about 0.1 to 1.0 mm (preferably having a rust-proof coating on the surface) and a paper having a thickness of about 0.1 to 3 mm are used. Materials (preferably, those subjected to non-combustible and / or flame-retardant treatment) or materials such as nonwoven fabrics having a thickness of about 0.1 to 5.0 mm are used, and from the viewpoint that the strength is remarkably improved. Metal plates are particularly preferred. Also, adhesion workability,
From the viewpoint of cutting workability, a nonwoven fabric is effective. In the present invention, an epoxy adhesive, a vinyl acetate resin adhesive, a rubber adhesive, or the like can be preferably used as the adhesive.

[0013]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing an embodiment of a heat insulating material for construction according to the present invention, in which (a) is a top view, (b) is a bottom view, and (c) is a front view. FIG. 2 is a perspective view showing a state in which heat insulation is performed using the architectural heat insulating material shown in FIG. 1 as a floor material.

In this architectural heat insulating material A, reference numeral 1 denotes a wooden board material as a surface material, which is made of the above-mentioned material, and has dimensions of length a, width b, and thickness c. On the back surface of the wooden board 1, the above foam synthetic resin board 2 having a substantially rectangular parallelepiped plate shape having a length a, a width d, and a thickness e is equally spaced from the above-mentioned type of adhesive. It is adhered with f1 placed, and functions as a heat insulating material. The interval f2 between the widthwise end of the wooden board 1 and the foamed synthetic resin board 2 is set to be half of f1. further,
A reinforcing member 3 of the type described above is adhered to the entire back surface of each foamed synthetic resin plate material 2 with the same or different adhesive.

The architectural heat insulating material A is disposed, for example, at a predetermined interval so as to intersect with a building luggage 10 (corresponding to the “first structural member” in the present invention). Many are mounted on the joist 11 (corresponding to the "second structural member" in the present invention). That is, as shown in FIG. 2, in this example, the pullers 10 are arranged at a span interval of a / 2, and a plurality of joists 11 having a width of approximately f1 are nailed at a span interval of approximately d. It is fixed by means such as hammering. At the time of heat insulation, the joist 11 is inserted into the space f1 between the foamed synthetic resin plates 2 so that the longitudinal end of the foamed synthetic resin plate 2 is located at the center of the large-scale pulling 10. Then, the required number of the heat insulating materials for building A are arranged. After the arrangement, nailing or the like is performed from the side of the wooden board 1 toward the joist 11 to fix the architectural heat insulating material A.

The insulated floor thus insulated is:
In addition to being excellent in heat insulation, the amount of deflection is improved with respect to both the concentrated load (the impact load during walking, the concentrated load due to the static load of a piano or the like) applied to the wooden board 1 and the uniformly distributed load. Thereby, it becomes possible to satisfy a required standard by using the architectural heat insulating material A having a smaller thickness than before, and when using the conventional architectural heat insulating material A having the same thickness, the structural members such as joists are used. It is possible to make the span wider.

The size of one piece of the wooden board 1 is as follows:
In the above example, the length a is the length of two of the tenths 10 and the width b is the width of four of the joists 11. However, the present invention is not limited to this, and it depends on the design environment of the building. Is appropriately changed. Also, a number of foam synthetic resin boards 2 corresponding to the size of one wood board 1 are bonded. If the width of the wooden board 1 is the width of two joists 11, only one foam synthetic resin board 2 will be bonded thereto.

In the illustrated example, the foamed synthetic resin plate 2
Although the thickness e is uniform, the portion that abuts the barb 10 is the same as or smaller than the thickness of the joist 11, and the other portions have a thickness that can enter the space of the barb. Good. Thereby, a thicker heat insulating material can be used, and the heat insulating effect can be further enhanced. Next, an example of the heat insulating material for construction according to the present invention will be described.

[Example 1] Wood board 1 has length a: 2
A 5-ply softwood plywood having a thickness of 000 mm, a width of b: 1000 mm and a thickness of c: 12 mm was used. : 200
Extruded expanded polystyrene plate material 2 (Sekisui Chemical Co., Ltd .: Eslenfoam SU35) having a plate shape of 0 mm, width d: 295 mm, and thickness e: 34 mm
The sheets were stuck at equal intervals f1: 38 mm. The interval f2 between the end of the wooden board 1 in the width direction and the foamed polystyrene board 2 was 20 mm. Furthermore, an epoxy-based adhesive (Esdine 3200 manufactured by Sekisui Chemical Co., Ltd.) is used on the entire back surface of each expanded polystyrene plate material 2.
Non-combustible paper (thickness: 1 mm) 3 was attached as a reinforcing member 3.

This architectural heat insulating material A is used as a rough drawing 1 of a building.
0 (span: 1000 mm) and a joist 11 (span: about 335 mm) arranged so as to intersect
5 mm) and nailed and fixed.

Example 2 Next, a bending test was performed to measure the amount of deflection of the heat insulating material for construction according to the present invention. As a sample, the same wooden board 1, adhesive and foam synthetic resin board 2 as those in Example 1 were used, and only the reinforcing member 3 was different. The specimen 1 was a 0.3 mm thick iron plate, and the specimen 2 was a non-combustible paper 1 mm thick as a reinforcing member 3. Further, as a comparative example, the comparative product 1 was not bonded with the reinforcing member 3 and the comparative product 2 was formed by bonding non-combustible paper as the reinforcing member 3 with an adhesive. No. 2 did not adhere with an adhesive, but only was arranged in a laminated manner. Comparative product 3 is the result of only the wooden board 1.

The size of the wooden board 1 is 600 mm × 1
50 mm × 12 mm, dimensions of foam synthetic resin plate 2 are 48
It was 0 mm x 150 mm x 35 mm, and a foam synthetic resin plate 2 was attached to the center of the wooden plate 1 with the above-mentioned adhesive. As shown in FIG. 3, each sample was supported at both ends at a span of 500 mm, and a concentrated load in the full width direction was applied at a center position of the span interval of the sample at a load speed of 20 mm / mi.
n and the relationship between load and deflection was measured. However, in Comparative product 2, a 600 mm × 150 mm × 35 mm foam synthetic resin plate 2 was used, and a wooden plate 1 was simply placed thereon. Then, a plywood support plate was placed on the back surface of the end of the foamed synthetic resin plate material 2, and a load support point was placed on the back surface.

FIG. 4 shows the results. As shown in FIG. 4, the test products 1 and 2 of the present invention have a smaller deflection (elongation) per unit load than any of the comparative products 1, 2 and 3 of the comparative example, and have a thermal insulation for buildings. It has been proved that when used as a material, the amount of deflection against load is improved.

[0024]

According to the architectural heat insulating material and the heat insulating structure of the present invention, the rigidity of the architectural heat insulating material against bending is improved as compared with the conventional heat insulating material. The required standard can be satisfied, and the span of structural members such as joists can be made wider when a conventional heat insulating material for construction having the same thickness is used.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a heat insulating material for construction according to the present invention, wherein (a) is a top view, (b) is a bottom view, and (c).
Is a front view.

FIG. 2 is a perspective view showing a state where heat insulation is performed using the building heat insulating material shown in FIG. 1 as a floor material.

FIG. 3 is a diagram illustrating a deflection amount measurement test.

FIG. 4 is a graph showing a deflection amount measurement test result.

FIG. 5 is a diagram showing an example of a conventional thermal insulation construction of a building.

[Explanation of symbols]

A: Insulation material for construction, 1 ... Wood board as surface material, 2 ...
Foam synthetic resin plate material having a substantially rectangular parallelepiped plate shape,
3 ... reinforcing member, 10 ... large pull, 11 ... joist.

Claims (5)

[Claims] A first structural member disposed at an interval and a second structural member placed on the first structural member at an interval and intersecting with the first structural member; A heat-insulating material attached to a structural member having, on one surface of a foamed synthetic resin plate material having a substantially rectangular parallelepiped plate shape having a lateral width that can be just fitted between at least the adjacent second structural members. A heat insulating material for architectural use, wherein a wooden board is bonded, and a reinforcing member is bonded to another surface of the foamed synthetic resin board. 2. The architectural heat insulating material according to claim 1, wherein the first structural member is large and the second structural member is a joist. 3. The heat insulating material according to claim 1, wherein said first structural member is a haze, and said second structural member is a barn roof. 4. The heat insulating material for a building according to claim 1, wherein a plurality of said foamed synthetic resin boards are bonded to said wood board. 5. A first structural member disposed at an interval and a second structural member placed on the first structural member at an interval and intersecting with the first structural member. A wooden member is bonded to one surface of a foamed synthetic resin plate having a substantially rectangular parallelepiped plate shape having a width that can be just fitted between at least the adjacent second structural members. A heat insulating structure in which a heat insulating material in which a reinforcing member is adhered is mounted on the other surface of the foam synthetic resin plate material.