JPH11336212A - Heat insulation panel for external wall of building and heat insulation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent inside dew condensation at the time of heating in winter and cooling in summer and make the same structure usable in both cold area and warm area by forming a moisture proof layer between a plurality of heat insulating sheets having thickness different from each other and specifying the thickness ratio of these heat insulation materials. SOLUTION: A moisture proof layer 4 such as aluminum foil, polyethylene sheet, etc., are integrally laid between two heat insulation material sheets 2, 3 having different thickness such as foamed synthetic resin, glass wool, etc., to form a sandwich structure. The thickness ratio of the heat insulation materials 2, 3 is set within the range of (1:9)-(5:5). The obverse and reverse of the heat insulation panel 1 are turned over and the panel is attached to the inside of external wall of a building. That is, thicker heat insulation materials 2 are turned to the outdoor side and attached to the outside of columns and studs 5 of a building, and interior finishing materials 6 are attached to the inside of the columns and the studs 5 positioned in the indoor side, and further, ventilable wind-proof sheets forming a wind-proof layer 7 are stuck on the outside face of the outdoor side heat insulation materials 2, in a cold district. Thinner heat insulation materials are arranged at the outdoor side and stuck thereto in a warm district.

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 to be installed in an outer wall of a building and a method of installing the heat insulating panel on the outer wall of the building.

[0002]

2. Description of the Related Art Conventionally, a heat insulating method using a heat insulating material has been adopted for an outer wall of a building such as a wooden house, particularly for an outer wall of a cold region or a warm region, in order to enhance a heating or cooling effect. As an example of the outer wall structure, as shown in FIG.
The heat insulating material 12 has substantially the same thickness as the stud 13 of the building, and a moisture-proof layer (plastic film) and an interior material 15 are attached to the indoor side of the heat insulating material 12 (rock wool, glass wool, or the like). A windproof layer 16 (sheet) is stretched on the outdoor side, and after attaching a vertical waist edge 17 to the stud 13 from above the windproof layer 16, an exterior material 18 is attached to the outside of the vertical waist edge 17. Vent layer 19 between exterior materials 18
Is formed.

[0003] In the above-mentioned outer wall structure, the indoor side has a high temperature and a high humidity.
Assuming that the indoor side is low temperature and low humidity, a moisture-proof layer 14 is provided on the indoor side of the heat insulating material 12 to prevent dew condensation. This structure is used not only in cold and quasi-cold regions, but also in buildings in warm regions where cooling is performed indoors in summer.

[0004]

In the above prior art,
For example, when air is cooled indoors in the summer in a warm region, the moisture-proof layer 14 is cooled due to a decrease in indoor temperature, and as shown in FIG. Dew 20 forms a problem that the dew drops the heat insulating performance of the heat insulating material 12 and adversely affects the durability of the building.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has as its object to prevent internal dew condensation during heating in winter and cooling in summer, and to be used in cold and warm regions. An object of the present invention is to provide an insulation panel for an outer wall and an insulation method.

[0006]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the present invention relates to a heat insulating panel to be assembled inside an outer wall of a building, wherein a moisture-proof layer is provided between two heat insulating materials having different thicknesses, and the ratio of the thicknesses of the two heat insulating materials is one. It is characterized in that the ratio is set to 9 to 4 to 5.

In this case, a foamed synthetic resin, glass wool, rock wool, or the like can be used as the heat insulating material, and the same or different materials can be used on both sides of the moisture-proof layer. Further, as the moisture-proof layer, an aluminum foil, a polyethylene sheet or the like can be used. The thickness ratio of the heat insulating material is preferably from 1: 9 to 5: 5. If the ratio of the heat insulating material having a small thickness, that is, the thinner one, is less than 1, the effect of preventing the internal dew condensation of the heat insulating material cannot be expected.

Further, in the heat insulating method for building outer walls according to the present invention, when the heat insulating panel according to claim 1 is assembled in the outer wall of the building, a heat insulating material having a large thickness is placed on the outdoor side in a cold region. It is characterized in that it is arranged in a warm place, and a thin heat insulating material is arranged on the outdoor side when necessary. That is, the same heat insulating material can be used in cold regions and warm regions. In this case, in a cold region, the heating effect in winter can be enhanced and the internal dew condensation of the heat insulating material can be prevented, the cooling effect in summer can be enhanced, and the room can be kept at a comfortable temperature and humidity. Also, in warm areas, heating efficiency in winter can be improved,
It is possible to enhance the cooling effect in summer and prevent dew condensation inside the heat insulating material, thereby making the room a comfortable space.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a heat insulating panel 1 and a heat insulating method according to the present invention. This insulation panel 1
Has a sandwich structure formed by integrating two heat insulating materials 2 and 3 having different thicknesses T1 and T2 and a moisture-proof layer 4 provided between the heat insulating materials 2 and 3.

As the material of the heat insulating materials 2 and 3, foam synthetic resin, glass wool, rock wool, or the like can be adopted. As the material of the moisture-proof layer 4, aluminum foil, polyethylene sheet, or the like can be used. . The heat insulating materials 2 and 3 can be made of the same material or different materials, and the ratio T2 / T1 of the thicknesses T1 and T2 is 1: 9 to 9: 1.
It can be set in the range of 5: 5, more preferably in the range of 1: 9 to 4: 5. With such a thickness ratio, dew condensation inside the heat insulating material can be prevented, and the heating or cooling effect in cold or warm regions can be enhanced.

That is, by using the same heat insulating panel 1 upside down, it can be adopted for an outer wall structure in a cold region and a warm region. FIG. 1 shows an embodiment of an outer wall for a cold district employing the heat insulating method of the present invention. The heat insulating panel 1 has a heat insulating material 2 having a large thickness T1 on the outside of pillars and studs 5 of a building. It is arranged and attached so that

An interior material 6 is attached inside the pillars and studs 5 located on the indoor side, and a ventilation windproof sheet forming a windproof layer 7 is provided on the outer surface of the outdoor heat insulating material 4. Further, after the vertical waist edge 8 is attached to the outside of the windproof layer 7, the exterior material 10 is attached to the vertical waist edge 8, and a ventilation space 11 is formed between the exterior material 10 and the windproof layer 7. Is done.

The ventilation space 11 communicates from the base side to the back of the hut (or below the eave ceiling), and the outside air flows from the bottom to the top to remove moisture and moisture from the heat insulating materials 2 and 3 and structural materials from the top of the building. The building is drained to keep the building dry from inside. As shown in FIG. 1, in a cold region, the outdoor side becomes low temperature and low humidity in winter and the indoor side becomes high temperature and high humidity by heating. However, the thickness T1 of the outdoor side heat insulating material 2 is large, No dew condensation occurs on the heat insulating material 3 side.

Further, in a cold region, even if the room is cooled in summer, the air constantly flows through the ventilation space 11 and is kept in a dry state, so that dew condensation is formed on the heat insulating material 2 side of the moistureproof layer 4. It does not occur. FIG. 3 shows an embodiment of an outer wall for a warm region employing the heat insulation method of the present invention. In the embodiment different from the embodiment of the outer wall for a cold region, the heat insulating panel 1 is inverted and the heat insulating material 3 (thickness T2 side) is used. ) Is arranged so as to be located on the outdoor side, and the other points are exactly the same as those in the embodiment of the outer wall for a cold region.

Further, even when cooling is performed in the summer in a warm region, the thickness T1 of the heat insulating material 2 on the indoor side is large, so that the moisture-proof layer 4 is not extremely cooled, and internal dew condensation does not occur. Absent. According to the embodiment of the thermal insulation method according to the present invention, it is possible to construct an outer wall in a cold region and a warm region using the thermal insulation panel 1 according to the present invention, that is, using the thermal insulation panel 1 having the same structure.

In the heat insulating panel 1, the thickness ratio T2 / T1 of the heat insulating materials 2 and 3 is set to be 1: 9 to 5: 5 (more preferably,
Within the range of 1: 9 to 4: 5), by selecting to meet the temperature conditions of the region (for example, Hokkaido and Kyushu),
It is possible to exhibit the performance suitable for the area, to prevent the deterioration of the heat insulation performance by preventing the internal dew condensation, and to maintain and improve the original durability of the building.

[0017]

As described above, the present invention relates to a heat insulating panel to be installed in an outer wall of a building, wherein a moisture-proof layer is provided between two heat insulating materials having different thicknesses. Since the ratio of the thickness of the material is set to 1: 9 to 5: 5, dew condensation inside the heat insulating material is prevented to maintain and improve the heat insulating performance, mold and bacteria are generated on the heat insulating material, and the metal is rusted. It can improve the durability of the building by eliminating the causes of wood corrosion and the like, and can be used in cold and warm regions.

Further, in the heat insulating method for a building outer wall according to the present invention, when assembling the heat insulating panel according to the first aspect in the outer wall of the building, a heat insulating material having a large thickness is placed on the outdoor side in a cold region. In warm areas (especially in subtropical areas), thin insulation is placed on the outside and attached.
By simply turning the same heat insulation panel upside down, it can be adapted to cold and warm areas, and it also prevents heating and cooling in the winter and internal condensation during cooling in the summer and efficiently heats or cools the room. It is possible to have an outer wall that can be used.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a heat insulating panel for a building outer wall according to the present invention and a heat insulating method employing the same for an outer wall of a cold region.

FIG. 2 is an enlarged partial cross-sectional view showing an embodiment of the heat insulating panel according to the present invention.

FIG. 3 is a partial cross-sectional view showing an embodiment of a heat insulating method in which the heat insulating panel is used for an outer wall of a warm area.

FIG. 4 is a partially cutaway perspective view showing a conventional building outer wall heat insulating structure.

FIG. 5 is a partial cross-sectional view of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thermal insulation panel 2 Thermal insulation 3 Thermal insulation 4 Moisture-proof layer T1 Thickness of thermal insulation 2 T2 Thickness of thermal insulation 3

Claims (2)

[Claims] 1. A heat insulating panel to be assembled in an outer wall of a building, wherein a moisture-proof layer is provided between two heat insulating materials having different thicknesses, and a ratio of the thicknesses of the two heat insulating materials is one to one. A heat insulating panel for a building outer wall, wherein the heat insulating panel has a ratio of 9 to 5 to 5. 2. When assembling the heat insulating panel according to claim 1 in an outer wall of a building, a heat insulating material having a large thickness is arranged on the outdoor side in a cold region, and a thickness in a warm region. Insulation method for building exterior walls, characterized by arranging and installing small heat insulating material on the outdoor side.