JPH11280170A - Heat-insulating structure panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce mounting works of a heat-insulating material on a construction field, and to conduct airtight sealing simply. SOLUTION: In the heat-insulating structure panel 1, the heat-insulating material 12 of expanded polyurethane is stuck beforehand onto the rear of a panel body 10 consisting of plywood, etc., while leaving a peripheral section 11. Grooves are formed to the peripheral corner sections of the heat-insulating material 12, and packings 15 are stuck into the grooves by using an adhesives. The packings 15 are made of flexible expanded polyurethane, formed in an approximately circular cross section, and formed in size in an extent that the packings 15 are projected to the outsides of the grooves. When an exterior wall is executed, the peripheral sections 11 of the panel body 10 are butted against columns 2, and fixed by nails, screws or the like. In this way, when the heat-insulating structure panel 1 is mounted, the packings 15 are deformed and closedly attached onto the columns 2, and openings between the columns 2 and the heat-insulating material 12 are hermetically sealed. Accordingly, no air in the openings leaks to the outside, and heat resistance is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel used for an outer wall of a wooden house.

[0002]

2. Description of the Related Art In a conventional wooden house, after assembling a structural frame member, a heat insulating material is filled inside or attached to the outside. However, in such a method, it takes time and effort to attach the heat insulating material, and when performing the airtight work together,
There were drawbacks that the cost was high, and that heat insulation and airtightness were apt to be lost.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to reduce the work of installing such a heat insulating material in a building site, to easily perform airtightness, and to improve the structural strength. I do.

[0004]

Means for Solving the Problems A heat insulating material (for example, polyurethane, phenol, polysten, isocyanurate, EPS, etc.) is previously stretched on the back surface of a panel body such as plywood or gypsum board, leaving a peripheral portion. At a construction site, the panel body is attached to a pillar, a beam, a girder or the like by a nail or a screw between supporting members such that the peripheral portion is applied. In this case, it is not necessary to provide a heat insulating material on site, but a gap is easily formed between the supporting material and the heat insulating material. Even if there is no gap at the time of construction, if the pillar dries and shrinks over the years, a gap is also formed between the support material and the heat insulating material. If there is such a gap, the air on the indoor side comes into direct contact with the panel body through this gap, and the heat insulating property is reduced.

Therefore, in the present invention, a packing is previously provided around a corner of the heat insulating material. With this configuration, when the panel body is attached to the support member such as a pillar, the packing is in close contact with the side surface of the support member to seal the gap. If the gap is sealed, the air inside the gap will be trapped,
The thermal resistance is larger than in the case where the gap is open, and the heat insulating property is improved. To elaborate this further,
The heat transfer resistance when the air contacts the vertical wall is 0.13 on the inner wall
m ² h ° C / kcal, but 0.1 da (da
Is the thickness of the air layer). Plastic insulation thickness
If it is 3 to 4 cm, the heat transfer resistance value will be 0.3 to 0.4 m ² h ° C / kcal. Therefore, the reciprocal, the coefficient of heat transmission, is 1 / 0.13 = 7.69 kcalm ² h ° C in the case of no sealing, and 1 / 0.3 to 1 / 0.4 = 3.33 to 2.5 kcalm ² h ° C in the case of sealing. By closing the gap, the amount of heat transmitted is reduced by 57 to 67% as compared with the case where the gap is opened.

For the packing, various elastic materials such as soft polyurethane, vinyl chloride, and rubber can be used. The cross section of the packing may be circular, rectangular or the like. This heat-insulating structure panel can be used not only for the outer wall of a wooden house, but also for floors, roofs, ceilings, and the like. Further, in the present invention, since the panel is fixed to a structure such as a pillar or a beam with a nail or a screw, it can be easily removed from the structure, and can be recycled when repairing or expanding.

When there is an intermediate support such as a stud in the middle of the support such as a pillar, a stiffener is attached to the panel body,
After the panel is mounted, the stiffener is nailed from the intermediate support to the stiffener. In this case, the heat insulating material is disposed on both sides of the stiffener, and the heat insulating material can be provided with a packing that is in close contact with the stiffener. In this way, even if a gap is formed between the heat insulating material and the stiffener, the gap can be sealed. Further, when there is no airtightness defect above and below the stiffener, even if the packing of the heat insulating material in contact with the stiffener is omitted, the airtightness does not decrease.

In the heat insulating structure panel of the present invention, the panel body is mounted between supporting members such as columns. By using a structural plywood for the panel body, the surface rigidity of walls and the like is enhanced, and the panel body can be used in the event of an earthquake or strong wind. The deformation of the structural skeleton is reduced with respect to short-term stress, and damage of the airtight heat insulating member can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an outer wall of a wooden house in a horizontal cross section.
Denotes a column, and reference numeral 3 denotes a lining plate. The heat insulating structure panel 1
On the back surface of the panel body 10 such as a plywood or the like, a heat insulating material 12 of, for example, foamed polyurethane is attached in advance, leaving a peripheral edge portion 11. In the case where the heat insulating material easily penetrates moisture and there is a risk of internal dew condensation inside the heat insulating material, it is preferable to bond a moisture-proof sheet to both surfaces of the heat insulating material.

[0010] A groove 13 is formed in the corner of the peripheral edge of the heat insulating material 12, and a packing 15 is stuck therein by using an adhesive. The packing 15 is made of soft foamed polyurethane and has a substantially circular cross section. The packing 15 is formed in such a size that it protrudes out of the groove 13.

When constructing the outer wall, the peripheral portion 11 of the panel body 10 is applied to the column 2 and fixed with nails or screws. The upper and lower edges of the panel body are fixed to upper and lower girders (not shown). When the heat insulating structure panel 1 is attached in this manner, as shown on the right side of FIG. 2, the packing 15 is deformed and closely adheres to the column 2, and the gap 16 between the column 2 and the heat insulating material 12 is formed.
Seal. Thereby, the air in the gap does not leak out, and the thermal resistance increases. When the building is renovated or expanded by fixing the panels with screws, the panels can be easily removed and recycled.

When the distance between the columns 2 is large, a stud 5 is provided between the upper and lower girders (FIG. 1). In the heat insulating structure panel having the studs as described above, the heat insulating material 12 is divided into right and left, and the stiffener (pier) 20 is fixed to the panel body 10 so as to be sandwiched between the heat insulating materials. When the panel main body 10 is fixed to the pillar, as shown in FIG. 3, a nail 21 is driven from the stud 5 toward the stiffener 20 to support the panel main body 1 on the stud 5. In the same manner, the groove 13 is provided in the divided portion of the heat insulating material 12 and the packing 22 is attached. This packing also
It closely adheres to the stiffener 20 and seals a gap 23 generated between the heat insulator 12 and the stiffener 20 to enhance heat insulation.

[0013]

As described above, according to the present invention, a heat insulating material is provided on the back surface of a panel body, and a packing is attached to a peripheral corner of the heat insulating material. The packing comes into contact with the side surface of the support member to seal a gap between the support member and the heat insulating material, thereby improving airtightness and heat insulating property. Further, since the heat insulating material is pasted on the panel in advance, the heat insulating material work on site is eliminated, and the construction cost can be reduced. In addition, by using the structural plywood for the panel body, the surface rigidity is enhanced, the deformation of the structural frame is reduced due to short-term stress caused by an earthquake or a strong wind, and damage to the airtight heat insulating member can be prevented.

When the stiffener is attached to the panel body, a heat insulating material is disposed on both sides of the stiffener, and a packing closely attached to the stiffener is attached to the heat insulating material. A gap generated between the stiffener and the stiffener can be sealed, and the heat insulation can be improved.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of an outer wall of a building.

FIG. 2 is an enlarged view around a pillar.

FIG. 3 is an enlarged view around a stud.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat insulation structure panel 2 Column as support material 5 Stud 10 Panel body 11 Peripheral part 12 Heat insulation material 15 Packing 20 Stiffener 22 Packing

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Eiichi Chiyooka 2-14-12 Minamimaekawa, Kawaguchi City, Saitama Prefecture Fujishima Construction Co., Ltd. (72) Inventor Yoichi Oshima 2-14 Minamimaekawa, Kawaguchi City, Saitama Prefecture 12 Fujishima Construction Co., Ltd. (72) Inventor Shigeki Iwaoka 2-9-12-1 Kitamatsuen, Morioka City, Iwate Prefecture

Claims (2)

[Claims] 1. A heat insulating material is stretched on the back surface of a panel main body while leaving a peripheral edge portion, and packing is provided around a peripheral edge portion of the heat insulating material, and the peripheral edge portion of the panel main body is used as a support material such as a pillar. A heat-insulating structure panel in which the packing is in close contact with the side surface of the support when the panel is fixed to the panel. 2. The heat insulating material according to claim 1, wherein the heat insulating material is disposed on both sides of a stiffener fixed to the back surface of the panel body, and packing is attached to the heat insulating material. A heat insulating structural panel as described.