JP3223995B2 - Building airtightness and insulation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention is particularly relates to air-tight-adiabatic Chemical method of effective building to form the external 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.

For example, FIG. 9 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. 10 shows a case in which an airtight moistureproof 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. 11 shows that the airtight moisture-proof layer (4) is arranged inside the 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 penetrates 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. 12, an internal heat insulating structure in which the heat insulating layer (1) is arranged inside the structural frame (6), and as shown in FIG. There is an external heat insulation construction method that is arranged outside 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. 9 to 11, 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 insulation with the internal insulation, in a cold region where constant heating is required, the external insulation is more advantageous in that the heat storage capacity of the structural frame (6) can be utilized.
Further, in the internal heat insulation structure, as shown in FIG. 12, many openings such as a downlight opening (7) from the ceiling, a large number of outlet openings (8), and an opening (9) for an electric switch are formed. Therefore, 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, although there is no opening as described above and there is little loss of the heat insulating layer, as shown in FIG. 13, the window handrail (10) and the window eaves ( 11) Or the arm lumber (12) for attaching the outer wall material protrudes from the structural frame, and these arm lumber (12) may cause the continuity of the heat insulating layer (1) and the airtight moisture-proof layer (4) to be lost. There is an inconvenience. In this case, the arm lumber (12) itself uses the arm lumber (12) as a hot bridge,
Although it can remove the cause of condensation, it is easy to create a gap between the peripheral surface of the arm wood (12) and the heat insulation layer (1) and the airtight moisture-proof layer (4). Repair work to close the gap must be performed on site. On the other hand,
The airtight layer (4) also requires airtight repair by taping and caulking with asphalt-based adhesive tape, but 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.

[0008] In view of the current state of such heat insulation and airtight construction methods, the present invention does not require precise construction and much labor, is excellent in heat insulation and airtightness, and has a novel heat insulation property with good workability. It has been made for the purpose of providing a br />, channel mounting method.

[0009]

That is, in order to achieve the above object, the heat insulation / airtight construction method according to the present invention is characterized in that a pair of divided members obtained by dividing one heat insulating panel into two are bent mutually. As possible, and an airtight material made of a flexible material is attached to the end face opposite to the bending line, and the airtight material side end is separated from the skeleton in a state in which the divided members are bent in a V shape. Abut on the protruding arm wood,
It is characterized in that the airtight material is brought into close contact with the outer peripheral surface of the arm lumber while being pushed into a flat plate shape by being pushed.

In the present invention, the term "arm wood" is used to mean a variety of things such as the above-mentioned window handrails, window eaves arms, metal fittings for attaching exterior materials, and the like.

Further , the method and panel of the present invention can be used not only for the outer wall of a building, but also for each part such as a roof (ceiling), an alcove eaves, a joint thereof, a joint between the outer wall and a foundation, and the like. it can.

[0012]

When the heat-insulating panel composed of the divided members connected to each other is pressed in a state of being bent in a dogleg shape, the surface of the airtight material at the end is pressed against the opposing surface of the arm member and compressed. At the same time, the hermetic material wraps around and adheres to the outer peripheral surface of the arm member in a direction perpendicular to the opposing surface due to its flexibility, so that the construction can be completed without performing hermetic and heat-insulating repair.

[0013]

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 split members are connected to each other (21)
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 corners of the airtight packing (25) at the upper and lower end faces are provided so as to extend from the upper surface or the lower surface of the airtight packing (25) to the side surface of the dividing member (21). (27) is adhered so that slipping and peeling do not occur when the heat insulating panel (23) adjacent to the upper side or the lower side or the arm member is rubbed.

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 between the arm members by pushing in from the opposite side. FIG. 5 shows a specific example thereof. In the figure, (28), (28)...
A pair of left and right arm members (29) inserted into the gaps between the framed columns (28) (28) that are adjacent to each other back to back
(29), the outer surfaces of the airtight packings (26) and (26) on the opposite side of the connecting portions of the division members (21) and (21) are brought into contact with the arm members (29) and (29). Then, these divided members (21), (21) are pushed in from the outside until they become flat, and attached.

FIG . 7 shows a heat insulating panel (23) adjacent to each other.
The boundary part of (23) is shown in an enlarged manner. At the part of the heat insulation panels (23) and (23) where the airtight packings (26) and (26) are in contact, these airtight packings (26) are strongly crushed. They are in close contact with each other. On the other hand, the opposing surface portion (30) of the arm member (29) and the airtight packing (26) is similarly crushed and adhered. Further, on a surface side different from the pressing direction such as the facing surface portion (30),
The airtight packing (26) is deformed and adheres along the surface of the arm member (29), and is closed with almost no gap. That is, when there is no such an airtight packing (26), as shown in FIG. 14, the hard divided members (21) and (21) are merely deformed into a simple bent shape. Therefore, repair work such as filling with an airtight material is required, but such work can be omitted by the airtight packing (26). FIG. 6 shows the state of attachment of the heat insulating panel (23) as viewed from the outside.

[0018]

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, an airtight packing layer made of a flexible material having a required thickness is provided on the end face of each divided panel. Since the packing layer wraps around and adheres to the outer periphery of the arm lumber, it is not necessary to repair the gap, it can be attached by simply pushing the heat insulating panel, and extremely excellent workability is obtained. .

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

FIG. 10 is a cross-sectional view of a main part of a conventional outer wall provided with an airtight / moisture-proof layer on the outer wall side.

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 inner wall side.

FIG. 12 is a schematic longitudinal sectional view of a building provided with a wall having an inner heat insulating structure.

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

FIG. 14 is an enlarged front view of a boundary portion between heat insulating panels having no airtight packing.

[Explanation of symbols]

 (21) Dividing member (22) Connecting tape (23) Insulation panel (26) Airtight packing (28) Framed column (29) Arm member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 1/76 E04B 1/80

Claims (1)

(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, and an airtight material made of a flexible material is provided on an end face opposite to the bending line. The airtight material is attached by attaching the airtight material side end to the arm wood projecting from the skeleton in a state where the divided members are bent in a U-shape, and pushing the airtight material into the arm wood. Air-tight and heat-insulating method for buildings, characterized in that they are closely attached while wrapping around the outer peripheral surface of the building.