JP3199572B2 - Building insulation panels - Google Patents

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 for a building which is particularly effective for forming external heat insulation of the building.

[0002]

2. Description of the Related Art The revised Energy Conservation Law requires not only improving the heat insulation of a building but also ensuring airtightness. Particularly in cold regions, it is important to improve the heat insulation and airtightness of the building. At that time, if the heat insulating layer and the airtight moistureproof layer are incorrectly arranged, dew condensation in the wall occurs, and the durability of the building is significantly reduced. In order to prevent this, it is necessary to continuously provide an airtight and moisture-proof layer on the indoor side of the outer peripheral wall, and to continuously provide a heat insulating layer on the outside thereof.

[0003] For example, FIG. 10 shows an example in which only a heat insulating layer (1) is provided between an exterior material (2) and an interior base (3) without providing an airtight layer. The water vapor that has permeated 1) comes into contact with the low-temperature portion outside the heat-insulating layer 1 and causes dew condensation. FIG. 11 shows a case in which an airtight moisture-proof layer (4) is provided outside the heat-insulating layer (1) and a ventilation layer (5) is provided between the layers (1) and (4). It is inevitable that the water will pass through the layer (1) and go to the outside. Even if condensation can be reduced somewhat by diffusion and dilution in the ventilation layer (5), if the amount of water vapor is large, the airtight moisture-proof layer (4) Condensation will form on the inside. On the other hand, FIG. 12 shows a case in which an airtight moisture-proof layer (4) is arranged inside a heat-insulating layer (1), whereby the humid air on the indoor side is shut off inside the airtight moisture-proof layer (4). In other words, even if the moisture permeates through the gaps of the moisture-proof layer (4) or the like, the amount thereof is small, so that it can be prevented from being diffused and diluted by the outer ventilation layer (5) to form dew.

That is, in terms of the relationship between the heat-insulating layer (1) and the hermetic moisture-proof layer (4), it is desirable to arrange the hermetic moisture-proof layer (4) inside the heat-insulating layer (1).

On the other hand, regarding the arrangement of the heat insulating layer (1), as shown in FIG. 13, an internal heat insulating structure in which the heat insulating layer (1) is disposed inside the structural frame (6), and as shown in FIG. There is an external heat insulation method that is placed inside the frame (6). In this case, in the case of internal heat insulation, an airtight moisture-proof layer (4) is naturally provided on the inner wall portion inside the heat-insulating layer (1) from the above point. 10 to 12 show that the heat insulating layer (1) is provided in the structural body, but this is also a broad sense of internal heat insulation.

[0006] Comparing the external heat insulation with the internal heat insulation, the external heat insulation is more advantageous in cold regions where constant heating is required because the heat storage capacity of the structural frame can be utilized. Furthermore,
In the internal insulation structure, as shown in FIG. 13, many openings such as a downlight opening (7) from the ceiling, a large number of outlet openings (8), and an opening for an electric switch (9) are formed. The continuity of the heat-insulating layer (1) and the hermetic moisture-proof layer (4) is likely to be impaired by this opening, and it can be said from this point that the external heat insulation is excellent.

[0007]

However, even in the case of external heat insulation, even though the above-mentioned openings are not provided and there is little loss of the heat-insulating layer, heat-insulating work using heat-insulating panels made of a hard foamed synthetic resin or the like is performed. When performing, since the heat insulation panel is hard, there is a gap between the arm lumber such as the window eave (11) and the arm bar (12) such as the window handrail (10) as shown in FIG. There is a problem that it is easy to occur, and therefore, it is necessary to repair the gap between the panels. On the other hand, even in the airtight layer, airtight repair by taping or caulking with an asphalt-based adhesive tape is required. However, heat insulation repair and airtight repair require dense construction and much labor. Insulation and airtightness require advanced skills for on-site construction, and the level of technology at the site affects building performance. On the other hand, at present, almost no heat insulation and airtight construction methods using industrial techniques that do not require special skills are found.

SUMMARY OF THE INVENTION The present invention has been made to provide a novel heat insulating panel which is excellent in heat insulation and air tightness and has good workability without requiring precise construction and much labor.

[0009]

In order to solve the above-mentioned problems, a heat insulating panel according to the present invention connects a pair of divided members obtained by dividing one heat insulating panel to each other so as to be bendable, and An airtight material is attached to an end face of each of the divided members extending in a direction perpendicular to the bending line, and a turning-over prevention tape is attached from the outer surface of the airtight material to the side of the divided panel. And

[0010] In the above, in the invention of claim 2 of the present application, the central portion in the width direction of the outer surface of the hermetic material is exposed more than the curling prevention tape and swells outward.

As the heat insulation panel of the present invention, a rigid foam synthetic resin material such as rigid urethane foam can be considered. In addition, the heat insulating panel of the present invention can be used not only for the outer wall of a building,
It can be used for various parts such as roof (ceiling), alcove eaves, and their joints, joints between outer walls and foundations, and the like.

[0012]

The heat insulating panel composed of the divided members connected to each other is mounted by being pressed in a state where the heat insulating panel is bent in a dogleg shape. In this case, if there is another heat insulation panel or arm wood adjacent to the end face of the divided member extending in a direction perpendicular to the bending line, the airtight material of the panel end face and the airtight material of the pressed panel end face are mutually reciprocal. In such a state that the panels are compressed, the end faces of the panel are in close contact with each other.

Further, in this case, when the airtight material portion is pushed in, there is a possibility that the airtight material portion may be rubbed against another member such as an adjacent airtight material portion or a crosspiece and may be peeled off. It is well-cured and fits in a regular position while maintaining its elasticity, ensuring airtightness.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, a description will be given of the steps from production of a heat insulating panel to its installation when the present invention is applied to an outer wall of a building.

In FIG. 1, reference numerals (21) and (21) denote rectangular divided members of the same shape, which are made of a rigid foam synthetic resin material having heat insulation performance, for example, foam polystyrene, rigid urethane foam, or the like. . The split members (21) and (21) are made to have the same ends as those before the split by adhering their split ends to each other and bonding a connecting tape (22) so as to straddle between the split ends. It forms one rectangular insulation panel (23) in shape. As a result, each of the divided panels (21) and (21) uses the vertical folding line (24) in the drawing as a dividing line as a fulcrum to support the tape (23).
Can be folded to each other at least to the position of a U-shape toward the surface on which is adhered. A tape (22) having airtightness and moistureproofness is used.

Next, the divided members (21) connected to each other
As shown in FIG. 2, strip-shaped airtight packings (25) and (26) having a required thickness are provided on both upper and lower end faces and an end face opposite to the split end face, respectively, as shown in FIG. ) Is attached so as to cover the entire circumference of). The hermetic packings (25) and (26) are made of an airtight material having flexibility such that they can be easily compressed and having low moisture permeability. For example, an independent foamed sponge material such as Epto Sealer (trade name) is used. Etc. are used. Further, the width is the same as the thickness of the division members (21) (21). Further, as shown in FIG. 8, the outer corner portions of the airtight packing (25) on both upper and lower end surfaces are arranged so as to extend from the upper or lower outer surface of the airtight packing (25) to the side surface of the dividing member (21). Then, a turning-over prevention tape (27) is attached to each of them, so that slippage and peeling do not occur due to fitting with the heat insulating panel (23) or the arm member adjacent to the upper side or the lower side. At that time, each turning prevention tape (27)
Both sides in the width direction of the outer surface of the airtight packing (25) to which the (27) is adhered are pressed down by the tape (27) and become lower. Thereby, the central portion (28) of the outer surface that is not pressed by the tape (27) swells relatively outward.

As described above, the airtight packing (25) (2
The heat insulation panel (23) to which 6) is attached is folded in the shape of a square as shown in FIG. 3 and turned over in the direction of the arrow, and then, as shown in FIG. Is attached by pushing in from the opposite side, so that the end face opposite to the connecting portion of the split panel (21) protrudes from the end face of the adjacent heat insulating panel (22) or the structural body as shown in the figure. It is airtightly adhered to the outer peripheral surface of various arm members (29). Insulation panels (22) vertically adjacent to each other in the figure
In such a case, at the time of this pushing, the airtight packing (25) portion is pushed by rubbing against the end face of the adjacent member, but since it is cured by the curling prevention tape (27) as described above, It can be stored in a proper position without causing displacement or peeling. Then, as shown in FIG. 9, the hermetic packing (25) is compressed when the bulging portion (28) at the center of the outer surface comes into contact with the adjacent hermetic packing (25). Even if there is an object, it can be deformed flexibly along its outer shape, so that there is almost no gap, and reliable airtightness can be ensured.

That is, such a curl prevention tape (27)
When there is no, push from the state as shown in FIG.
As shown in FIG. 6, one or both airtight packings (25) are rolled up when pushed in. However, the tapes (27) do not peel off as shown in FIG. This means that the bulging part enters while compressing.

[0019]

As described above, according to the present invention, a pair of divided members are folded into a U-shape from each other and pushed into a flat plate shape to attach a heat insulating panel. It has the effect that it can be attached closely to and without gaps.

In particular, according to the present invention, if there is another heat insulating panel or arm bar adjacent to the end face of the divided member extending in a direction perpendicular to the bending line, the airtight material of the pushed panel end face is compressed. In such a state, the end faces of the panel are in close contact with each other, and since this airtight material is cured with a curling prevention tape, it can be surely put in a proper position without peeling or curling.

Further, in the invention of claim 2 of the present application, not only the curing with the curling prevention tape as described above, but also the central portion of the airtight material is exposed outwardly in a bulging shape, so There is an effect that the airtight material can be surely adhered to each other while being compressed with each other, and the airtightness can be more reliably maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heat insulating panel showing a method of connecting each divided panel with a tape.

FIG. 2 is a perspective view of a heat insulating panel showing a state in which an airtight packing is attached to each divided panel.

FIG. 3 is a perspective view of the heat insulating panel in a state of being bent into a dogleg shape.

FIG. 4 shows a heat-insulating panel similarly bent in a U-shape.
FIG. 4 is a perspective view of the state shown in FIG.

FIG. 5 is a cross-sectional plan view showing an attaching method of pushing and attaching an insulating panel between arm members of an outer wall.

FIG. 6 is a perspective view of a main part of the outer wall showing a state where the heat insulating panel is attached.

FIG. 7 is an enlarged front view showing a boundary portion between adjacent heat insulating panels.

FIG. 8 is an enlarged vertical sectional view of a main part of the heat insulating panel.

FIG. 9 is a longitudinal sectional view showing a state where the heat insulating panel is being pushed in.

FIG. 10 is a cross-sectional view of a main part of a conventional outer wall having no airtight / moisture-proof layer.

FIG. 11 is a cross-sectional view of a main part of a conventional outer wall provided with an airtight and moisture-proof layer on the outer wall side.

FIG. 12 is a cross-sectional view of a main part of a conventional outer wall provided with an airtight / moisture-proof layer on the inner wall side.

FIG. 13 is a schematic longitudinal sectional view of a building provided with a wall having an inner heat insulating structure.

FIG. 14 is a schematic longitudinal sectional view of a building provided with walls having an external heat insulating structure.

FIG. 15 is a longitudinal sectional view showing a state before the heat insulating panel without the turning-up prevention tape is pushed.

FIG. 16 is a vertical cross-sectional view showing a state in the middle of pushing.

[Explanation of symbols]

 (21) Dividing member (22) Insulation panel (25) Airtight packing (27) Turn-up prevention tape (28) Central part of airtight packing

Claims (2)

(57) [Claims] 1. A pair of divided members obtained by dividing one heat insulating panel into two parts are connected to each other so as to be bendable,
In addition, an airtight material is attached to an end face of each of the divided members extending in a direction perpendicular to the folding line, and a curling prevention tape is attached across the split panel from the outer surface of the airtight material. Insulated panels for buildings. 2. A heat insulating panel for a building according to claim 1, wherein a central portion in a width direction of said outer surface of said airtight material is exposed from a curling prevention tape and bulges outward.