JP2003328464A - Exterior-wall heat-insulating structure using heat shield material, and heat insulating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior-wall heat-insulating structure of a building, which reduces the heat storage of a heat insulating material 3 by lightening a heating load on the material 3 and can follow a fall in outside air temperature in a short period of time. <P>SOLUTION: The heat insulating material 3 is arranged and fixed on the indoor side of a wall space Ws which is formed of vertical members such as a column 5 and a stud 50, and cross members such as a horizontal member 6 and a sill member 60; an outdoor-side surface of the material 3 is covered with the heat shield material 2 which is composed of a plurality of upper and lower sheets 21, 22 and 23 so as to exert a radiant heat reflecting action, caused by a radiant heat reflecting layer Re on the surfaces of the sheets 21, 22 and 23, and a water vapor communication action in air layer spaces S<SB>1</SB>among the sheets 21, 22 and 23; a windbreak layer 9 is provided in a tensioned state and fixed on the outdoor side of the material 2 in a close-contact form; an exterior wall material 8 is provided in a tensioned state on the outdoor side of the windbreak layer 9 via a ventilation layer S0; and the material 2 inhibits radiant heat from being applied to the material 3 from the outdoor side and dew condensation in the material 2 is prevented, so that the heat storage of the material 3 can be reduced by lightening the heating load on the material 3. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides an outer wall of a building such as a house with a novel structure having excellent air permeability and heat insulating properties, and provides a building that is easy to construct and saves energy. Yes, it belongs to the technical field of architecture.

[0002]

2. Description of the Related Art As a heat insulating structure for a general outer wall of a house, a heat insulating material or the like is arranged in a wall space defined mainly by vertical members (pillars, studs) and horizontal members (beams, bases) that form a structure. There is the filling heat insulation and the external heat insulation in which the heat insulating material is arranged on the outer peripheral portion of the outer wall structure, and the filling heat insulation has an advantage that the heat insulating material can have a sufficient thickness without increasing the wall thickness.

[Conventional Example 1 (FIG. 9)] FIG. 9 is an explanatory view of a conventional general filling and heat insulating construction, in which (A) is a perspective view,
(B) is a BB sectional view of (A). As is clear from the figure, a windproof layer such as a thin plywood plate is stretched on the surface of the outdoor pillars and studs (vertical members), and then the insulating material is filled between the vertical members from the indoor side. A moisture-proof film (moisture-proof sheet) for blocking water vapor from the indoor side is applied and the inner surface material is stretched with nails.

Next, on the outdoor side, each vertical member (pillar, stud)
A ventilation base material is fixed on the surface from the windproof layer, and an exterior material (outer wall material) is stretched over the ventilation base material to form a ventilation layer between the windproof layer and the exterior material. Therefore, the outer wall is filled with a heat insulating material between each pillar (vertical member), the moisture from the indoor side is blocked by the moisture proof film, and the windproof layer on the outdoor surface can absorb and release moisture. Will be protected by
Condensation in the outer wall can also be prevented by the conduction of outside air in the ventilation layer.

[Prior Art 2 (FIG. 10)] FIG. 10 shows an outer wall heat insulating structure disclosed in Japanese Patent Laid-Open No. 9-184213, which solves the problem that the ventilation layer is filled with the cushioning property of the heat insulating material. Yes, inorganic wool insulation material such as glass wool, rock wool, etc. between the pillars is filled with a moisture permeable sheet while protecting the peripheral side surface and the outdoor surface, and a moisture-proof sheet is stretched on the indoor side, and on the outdoor side, A vertical furring strip is fixed to the surface of a pillar, a ventilation member having a honeycomb structure is fitted between the vertical furring strips, and an outer wall material is stretched on the upper surface (front surface) of the ventilation member. That is, a ventilation member having a honeycomb structure is interposed in the ventilation layer in Conventional Example 1.

The honeycomb structure ventilation member is a connecting member capable of bending an outer wall side material as an outer wall base material having moisture permeability and water resistance, and an inner wall side material made of moisture permeable and waterproof non-woven sheet waterproof paper. In this case, the air passages are formed and held by the connecting members between the double-sided members.
Therefore, it is possible to secure an air passage between the outer wall material and the heat insulating material that is not buried even by the cushioning property of the heat insulating material, and the outer wall structure has both air permeability and heat insulating property.

[0007]

In a general filling heat insulation construction such as the conventional example 1 of FIG. 9, the number of steps is large and the construction is complicated, and the ventilation layer may be buried due to displacement of the heat insulation material layer. There is. Moreover, since the heat insulating material has a function of blocking conduction heat, if the heat insulating function is improved, the thickness of the heat insulating material is increased, and the heat storage function is also improved. For example, even when the outside air temperature is lowered at night, the heat insulating material is the heat storage material. As a result, the heat storage amount is continuously released to the indoor side for a long time, which becomes a load of cooling energy in the room.

Further, even in the outer wall heat insulating structure of Conventional Example 2 of FIG. 10, it is complicated to protect and fill the heat insulating material with the moisture permeable sheet, and to insert and install the ventilation member after fixing the vertical furring strip to the column. In addition, since the ventilation member merely secures the ventilation passage and the heat insulating function is exerted only by the heat insulating material, there is a drawback that the heat insulating wall thickness becomes the heat insulating material thickness + the ventilation member thickness, and the wall thickness becomes large. is there. Moreover, the function of the heat insulating material is that of the conventional example 1.
In the same manner as above, since the conduction heat is cut off by receiving high temperature outside air, load heat is stored in the heat insulating material. It will radiate heat.

In the present invention, among the heating from the outside to the outer wall, which is not paid attention to in the prior art examples 1 and 2, the heat ray heating to the surface of the heat insulating material is blocked by the heat shielding material, and the radiant heat of the heat insulating material is heated. By preventing the heat load on the heat insulating material directly below the heat insulating material layer and securing a ventilation path for outside air conduction with the heat insulating material, it was not possible to predict in each conventional example,
It is intended to provide an epoch-making outer wall heat insulating structure exhibiting high heat insulation, low heat storage, and the ability to prevent dew condensation.

[0010]

Means and Actions for Solving the Problem For example, as shown in FIGS. 1 and 2, a wall formed by vertical members such as columns 5 and studs 50 and horizontal members such as horizontal members 6 and base members 60. The heat insulating material 3 is disposed on the indoor side in the space Ws (FIG. 4), and the outdoor surface of the heat insulating material 3 includes at least the upper surface sheet 21 and the lower surface sheet 22, and at least the lower surface sheet 22 is the radiant heat reflection layer Re. And a plurality of upper and lower sheets 21, 22 and 23 having an air layer space S1 between the sheets, and the heat shield 2 having a radiant heat reflecting action on the sheet surface is closely attached to the lower sheet 22 and the surface of the heat insulating material 3. The windbreak layer 9 is arranged in close contact with the outdoor side surface of the heat shield 2 and the windbreak layer 9 is stretched over the vertical members 5, 50 and the horizontal members 6, 60. The outer wall member 8 is stretched on the surface of the air vent layer S0 with the air vent layer S0 interposed between the air layer space S1 and the air vent layer S0. Together to enable the water vapor communicating a external wall insulation structure with a substantially entire surface of the heat insulator 3 outdoor side coated protected by heat shield 2 (claim 1).

The "windproof layer 9" means a moisture-permeable waterproof sheet that prevents entry of rainwater and allows moisture (water vapor, air) to pass through, and is typically JISA 6111-199.
It is a 6-standard non-woven sheet (0.1 mm thick, PE non-woven fabric). Further, the “close contact form” means a state in which an air fluidized layer does not exist at the interface, and has a broad meaning including a case where both are surface-bonded and a case where they are in close contact with each other in a pressing state. Also,
In the “water vapor communication between the air layer space S1 and the ventilation layer S0”, the windproof layer 9 and the topsheet 21 both having moisture permeability are layered so as to allow ventilation, and the entire surface of the topsheet 21 and the entire surface of the windbreak layer 9 are The upper sheet 21 and the intermediate sheet 23 of the heat shield 2 are non-moisture permeable, and the air layer space S1 is on the extension L3 of the heat insulating material 3 as shown in FIG. The water vapor (air) in the air layer space S1 may be allowed to pass through the windbreak layer 9 from the space Os by opening to the space Os.

In addition, the air layer space S1 of the heat shield 2 may be formed by forming the air layer space S1 of one layer in a two-layer structure in which the heat shield 2 is only the upper sheet 21 and the lower sheet 22, or Although a plurality of layers of the air layer space S1 may be formed in a multilayer form (three or more layers), in order to prevent dew condensation inside the heat shield 2,
At least one layer of the air layer space S1 is essential, and in particular,
As shown in FIG. 2, both ends 2E of the air layer space S1 are connected to the space Os.
If the air is circulated in the air layer space S1 by opening it to the above, the heated air in the heat shield 2 can be released, and the heat shield function of the heat shield 2 is improved.

Further, the meaning of "protecting substantially the entire outside surface of the heat insulating material 3 with a heat shielding material" means that the radiant heat blocking action on the surface of the heat insulating material 3 is substantially the same as the case of the whole surface coating. And the case where both ends of the heat insulating material 3 are slightly exposed from the lower surface sheet 22. Further, even if only the lower surface sheet 22 is provided in the radiant heat reflective layer Re, it is necessary to apply the radiant heat reflective layer Re to the surface of the lower surface sheet 22 because transfer of the radiant heat to the surface of the heat insulating material 3 can be blocked. Other sheet 21,
If the radiant heat reflection layer Re is also applied to 23 and the like, the heat load reducing effect of the heat insulating material 3 becomes greater.

The radiant heat reflecting layer Re may be a heat ray reflecting layer such as an aluminum vapor-deposited film, but a metal foil layer having a heat ray reflecting ability such as an aluminum foil is microscopically flat and specularly reflected. It is advantageous in that it can be easily formed by adhering it to a sheet material, and in particular, the use of aluminum foil is advantageous in terms of function, cost and manufacturing process. Further, as the heat insulating material 3, various conventional heat insulating materials such as glass wool heat insulating material, rock wool heat insulating material, glass wool compression plate, synthetic resin foam plate heat insulating material and the like can be adopted.

Therefore, in the heat insulating structure of the present invention, at least the lower surface sheet 22 of the heat shield 2 has the radiant heat reflecting layer Re.
Therefore, the radiant heat from the outdoor side to the heat insulating material 3 can be prevented, and the heat from the outdoor side to the heat insulating material 3 is only convective heat transfer and conductive heat transfer. Since it can be suppressed by the presence of S1, the heat storage of the heat insulating material 3 can be suitably reduced, and the three elements of heat transfer, namely conduction and
An epoch-making high-performance adiabatic structure with high heat insulation and low heat storage that can deal with all three elements of convection and radiation can be obtained.

Moreover, in the heat shield 2, the upper sheet 21 is arranged in close contact with the moisture permeable windproof layer 9 and the lower sheet 22 is arranged in close contact with the heat insulating material 3, so that the heat insulating material 3 extends into the wall space Ws. Adhesive fixing and nailing fixing of the windbreak layer 9 to the vertical member and the horizontal member facilitates the installation work, and air flow does not occur at the interface between the heat insulating material 3, the heat shield 2, and the windbreak layer 9.
The heat shield function of the heat shield 2 works effectively. Since the outer surface of the heat shield 2 is in close contact with the windbreak layer 9 and does not project from the surface of the vertical members 5, 50, an increase in the thickness of the outer wall structure can be suppressed. That is,
Since the radiant heat reflection layer Re of the heat shield 2 can reduce the heating load on the heat insulating material 3, the heat insulating material itself can be made thin.
The total thickness of the heat shield 2 and the heat insulating material 3 can be made substantially the same as that of the conventional heat insulating material of the same material. Therefore, although the heat insulating structure is far superior to the conventional heat insulating structure, it can be housed in the conventional heat insulating material space and the outer wall thickness can be formed to be substantially the same as the conventional outer wall thickness.

Further, as shown in FIG. 2, in the heat shield 2, both end edges 2E of the air space S1, that is, both end edges 2E of the upper sheet 21 and the intermediate sheet 23 maintain a distance D from the horizontal members 6, 60. It is preferable to arrange the above (Claim 2). in this case,
In order to cover and protect the heat insulating material 3 with the lower surface sheet 22, the lower surface sheet 22 is extended from the upper surface sheet 21 and the intermediate sheet 23 so that the entire surface of the heat insulating material 3 is covered.
Although it is preferable to prevent radiant heat to the air, the air layer space S1 of the heat shield material
The air intake / discharge distance D between each horizontal member 6 and 60 is small (3
~ 5 cm), even if the heat insulating material 3 is exposed in the space D,
The exposed surface is a negligible exposed surface with respect to the total surface area of the heat insulating material, and the radiant heat blocking effect of the heat shield 2 on the heat insulating material 3 similar to the coating of the substantially entire surface can be expected. When the sheets 21, 22, 23 of the heat shield 2 have the same length, the heat shield 2 can be cut into a predetermined size after being manufactured as a continuous long product.
The production of the heat shield 2 can be rationalized.

Therefore, the heat shield 2 is separated from the cross members 6 and 60 by the distance D.
As shown in FIG.
Spaces Os for air circulation can be formed at both ends of the air layer space S1, and the heat shield upper surface sheet 21 is provided with vertical members (columns 5,
Even if the studs 50) and the horizontal members (horizontal member 6, base member 60) are arranged flush with each other, the air flow A0 in the ventilation layer S0 permeates the air-permeable nonwoven sheet (windproof layer) 9. And space Os
It can be ensured that the air flow space A1 can be suitably communicated with the air flow A1 in the air space S1, and both ends of the air space S1 can communicate with the outer surface side of the windbreak layer 9 (the ventilation layer S0).
The airflow A1 (FIG. 2) in the air layer space S1 that has passed through the windbreak layer 9 is also heated by the radiant heat reflection layer Re and becomes a smooth flow from the lower end to the upper end of the air layer space S1 due to the chimney effect. .

The heat shield 2 has a radiant heat reflecting layer R on the surface of which the sheets 22 and 23 defining the lower surface of the air layer space S1 are provided.
e, and the radiant heat reflection layer Re is an extension L of the heat insulating material 3.
It is preferable to coat the entire surface including 3 (claim 3).
The "extended portion L3" is a portion protruding from the heat shield 2 at both ends in the longitudinal direction of the heat insulator 3, as shown in FIG.
Is arranged between the horizontal members 6 and 60 in the vertical direction, and the heat shield 2 is arranged at a distance D from each of the horizontal members 6 and 60, which corresponds to the vertical distance D of the heat insulating material 3. .

As a means for covering the extended portion L3 of the heat insulating material 3 with the radiant heat reflecting layer Re, in the heat shield material 2, only the lower surface sheet 22 has the same length as the heat insulating material 3, and the other sheets. The heat shield 2 integrally made in a short size so that 21, 23 and the like do not exist on the extension L3 may be layered on the heat insulator 3, or the sheets 21, 22, and 23 may have the same length. The heat shield of FIG. 3 is manufactured in advance and layered on the heat insulating material 3, and on the extension L3 of the heat insulating material 3, an auxiliary lower surface sheet 22 '(FIG. 3) separately prepared by the lower surface sheet 22 is extended L3. The radiant heat reflection layer Re may be attached on the upper side.

Therefore, the entire surface of the heat insulating material 3 is covered with the radiant heat reflecting layer R.
Since it is covered with e, the heat ray heating on the extension portion L3 of the heat insulating material 3 is also reflected by the radiant heat reflecting layer Re and the heated air flow A1.
Through the windbreak layer (nonwoven fabric sheet) 9 as a ventilation layer S0
And the heating of the heat insulating material 3 by the radiant heat from the outdoor side can be completely blocked, and the effect of blocking the radiant heat heating of the heat insulating material 3 by the heat shield 2 becomes complete. Of course, since the space Os exists on the extension L3 of the heat insulating material 3, the air layer space S1
The air communication between the ventilation layer S0 and the ventilation layer S0 is also smooth.

At least the top sheet 2 of the heat shield 2
It is preferable that 1 has moisture permeability and waterproof property (claim 4). In this case, as shown in FIG. 5, the top sheet 21 is provided with a large number of pinholes (fine holes) h in order to give the top sheet 21 moisture-permeable and waterproof properties.
Need only be drilled by needling. Then, the air flow A0 entering the ventilation layer S0 from the outside and the air flow A in the heat shield 2
If the upper surface sheet 21 exposed to the temperature difference from 1 has moisture permeability, the entire surface of the upper surface sheet can breathe moisture together with the entire surface of the windbreak layer, preventing dew condensation in the heat shield 2 and heat shielding. Material 2
Contamination of the radiant heat reflective layer Re can be suppressed, and the weather resistance of the heat shield 2 is improved. Of course, the intermediate sheet 23 and the bottom sheet 22
Also, if it is moisture-permeable and waterproof, the dew condensation prevention function will be further improved.

The heat shield 2 is made of all sheets 21, 22,
23 is preferably moisture-permeable and waterproof (claim 5). Even if the sheet having the radiant heat reflection layer Re is provided with a large number of fine holes (pinholes) by a needling process, it becomes moisture-permeable and waterproof, and in this case, as shown in FIG. It suffices to perform a fine hole h drilling process on all sheets.

Therefore, since the lower surface sheet 22 is also moisture-permeable and water-proof, even if the heat insulating material 3 absorbs water vapor (moisture), the entire surface of all the sheets of the heat insulating material 2 from the heat insulating material 3 to the entire windbreak layer. Since moisture can be released through the surface and deterioration of the heat insulating function due to moisture absorption of the heat insulating material 3 can be suppressed, it is possible to adopt a hygroscopic heat insulating material and increase the degree of freedom in selecting a material to be used as the heat insulating material. Moreover, deterioration of the radiant heat reflection function due to dew condensation on the heat shield 2 can be suppressed, and the weather resistance of the heat insulator 3 and the heat shield 2 is also improved.

Further, it is preferable that the heat shield 2 and the heat insulator 3 are used by being layered and integrated in advance (claim 6). in this case,
As shown in FIG. 3, the lower surface sheet 22 of the heat shield 2 is adhered to the surface of the heat insulating material 3 leaving the extended portions L3 at the upper and lower ends of the heat insulating material 3, and then the auxiliary lower surface sheet 22 'is formed on the extended portion L3. May be attached to form the space Os for air circulation in the extension L3, or, as shown in FIG. 7, each sheet 21 of the heat shield 2,
Heat insulating material 2 in which 22 and 23 have the same length as the heat insulating material 3 and a large number of air holes O2 are formed in the upper surface sheet 21 and the intermediate sheet 23.
May be layered and integrated with the heat insulating material 3.

Although the heat shield is easily deformable, the heat shield 2 and the integrated heat insulator 3 have shape retention.
Moreover, since the extension L3 of the heat insulating material 3 can be used as a pressing portion from the outer surface side (outside the house), the heat insulating material 3 with the heat shield 2 can be used.
It becomes easy to fit and fix the wall space in the wall space Ws. As shown in FIG. 3, if the windbreak layer 9 is also integrally laminated, the windbreak layer 9 and the heat insulating material 3 and the heat insulating material 2 can be fixed in the wall space Ws at the same time. The implementation of the structure can be rationalized. Of course, the panel that integrates the windbreak layer 9 is used as the heat insulating material 3.
Adhesive is applied to the side surface and the panel is attached to the wall space Ws
It is possible to easily fit and fix the heat insulating material 3 by fitting it inside and retracting the heat insulating material 3 from the indoor side by suction means. In addition, the work of layering and integrating the heat shield 2 and the heat insulator 3 can be carried out outside the site, and thus a uniform outer wall heat insulating structure can be formed.

Further, an interior surface material 80 is stretched on the indoor side surface of the wall space Ws via a moisture-proof sheet 10, and the lower sheet 22 of the heat shield 2 stretched outside the wall space Ws and the inner surface material. It is preferable to dispose the heat insulating material 3 in the space with the moisture-proof sheet 10 (claim 7). In this case, if the heat shield 2 is integrated with the windbreak layer 9 as an integrated layer, the heat shield 2 can be easily arranged, and the heat insulating material 3 can be filled with the irregular heat insulating material 3 such as glass wool. Various conventional heat insulating materials including hygroscopic heat insulating materials can be adopted. It is also possible to fill the heat insulating material by injecting and foaming the foam heat insulating material on site.
Therefore, it is possible to adopt a relatively low-cost heat insulating material such as glass wool, and moreover, it is easy to dispose the heat insulating material 3 in the wall space Ws.

As shown in FIG. 3, for example, the heat insulation panel of the present invention includes at least an upper surface sheet 21 and a lower surface sheet 22, and at least the lower surface sheet 22 is composed of upper and lower sheets 21, 22 and 23 having a radiant heat reflecting layer Re. , Between the sheets 21, 22 and 23 are erected pieces 24 and 2 which can be bent freely.
The heat shield 2 having the air layer space S1 connected by five groups (FIG. 5) is used as an intermediate layer, the windproof layer 9 is provided on the upper surface of the upper sheet 21, and the heat insulating material 3 is provided on the lower surface of the lower sheet 22. In addition, the air layer space S1 is layered on the outer surface of the windbreak layer 9 so that water vapor can communicate therewith, and substantially the entire surface of the heat insulating material 3 is covered with the radiant heat reflective layer Re (claim 8).

Since the windbreak layer 9 has moisture permeability (communication between water vapor and air), "communication of water vapor between the top sheet 21 and the windbreak layer 9" is as shown in FIG.
Is open to the space Os, the top sheet 21 can be impermeable to moisture. When the top sheet 21 has the same length as the heat insulating material 3, that is, the space O is provided at both ends of the air layer space S1.
If s does not exist, the upper sheet 21 and the intermediate sheet 23 that define the upper surface of the air layer space S1 may be provided with air holes O2, as shown in FIG. Moisture permeability is imparted to the sheet 23, and the windproof layer 9 and the top sheet 21 are layered together by adhesive (dotted,
It suffices to carry out by applying (linear).

Further, when the moisture permeable upper sheet 21 is laminated on the windbreak layer 9, the air permeability (water vapor permeability) of the windbreak layer 9 is lowered, so that the water vapor communication from the air layer space S1 to the outer surface of the windbreak layer 9 is established. As a means for enabling the above, the top sheet 21 is made to be moisture permeable, and as shown in FIG. 3, the space Os is arranged at both ends of the air layer space S1, and only the windproof layer 9 above the space Os is suitable. It is preferable that air flow is generated in the air layer space S1 due to the flowability.

If the heat shield 2 has a two-layered structure including only the top sheet 21 and the bottom sheet 22, one air layer space S1 can be formed between the two sheets, and the top sheet 21, the intermediate sheet 23, If the lower surface sheet 22 has a three-layer structure, two layers of air space S1 can be formed as shown in FIG.
Since the air layer space S1 is essential in the present invention, at least the upper sheet 21 and the lower sheet 22 are the upper and lower sheets.
It should be equipped with.

Since the radiant heat reflection layer Re blocks the radiant heat load on the heat insulating material 3, it is essential that the radiant heat reflecting layer Re be present on the lower surface sheet 22 covering the surface of the heat insulating material 3.
If it exists in each of the sheets 22 and 23 that define the lower surface of the air layer space S1, it is effective because it can block the radiant heat for each of the air layer spaces S1, and it is effective to provide the radiant heat reflecting layer Re to the plurality of sheets of the heat shield 2. For example, a sheet having a reduced radiant heat reflection function can be complemented by another sheet, the temperature of the air in each air layer space S1 can be suppressed from rising, and radiant heat heating prevention and heat load reduction on the heat insulating material 3 are more effective.

Therefore, the heat insulating panel 1 of the present invention is installed in the wall space Ws.
If the heat shield 2 is placed inside, the heat shield 2 prevents heating of the heat insulator 3 by radiant heat, and due to the water vapor communication (air permeability) to the outer surface of the windbreak layer 9 of the air layer space S1, the inside of the heat shield 2 is prevented. Can be prevented from condensing and the temperature of the air can be suppressed from rising due to the discharge of the heated air to the ventilation layer S0. In combination with the suppression of conduction heat transfer of the heat insulating material 3, the obtained outer wall structure has three elements of heat transfer, that is, It becomes an adiabatic structure that copes with all three elements of conduction, convection, and radiation, and becomes an epoch-making high-performance adiabatic structure with high heat insulation and low heat storage. Moreover, since the heat shield 2 reduces the heat load on the heat insulator 3, the heat insulator 3 can be made thinner than the conventional product made of the same material, and the thickness of the entire panel is increased because the heat shield 2 is used. It is possible to rationally perform the work by simply fitting and fixing the heat insulating panel having a single high-performance heat insulating outer wall having a high heat insulating property and low heat storage, which is excellent in appearance, in the wall space Ws.

Moreover, in the heat shield 2, since the upper and lower sheets 21, 22, 23 are connected by the group of foldable upright pieces 24, 25, the heat shield 2 before the heat insulating panel 1 is manufactured. Are the sheets 21 and 2 on which the standing pieces 24 and 25 have been laid down.
By handling as a laminated form of No. 2 and 23, storage and transportation are facilitated, and the heat shield 2 can be handled as a laminated form even after the heat insulating panel is formed, and storage and transportation are easy.

Moreover, the heat shield 2 is formed by the sheets 21, 22, 22.
Since it can be handled as a laminated state of 23, it is possible to press the heat shield 2 when the heat shield 2 and the heat insulator 3 are layered with an adhesive, and the layering work is easy, and the formwork is used. It is also easy to form an integrated layer with the heat shield 2 by foam molding of a heat insulating material (not shown).

Further, the heat insulating panel 1 has extended portions L3 formed at both ends of the heat insulating material 3, and both end edges 2E of the air layer space S1 of the heat shield 2 are open to the space Os on the extended portion L3. Is preferred (claim 9). The extension L3 at both ends of the heat insulating material 3
As is clear from FIG. 3, the heat shield 2 does not cover both ends, and the edge 2E of the air layer space S1.
Is the top sheet 2 defining the top surface of the air space S1.
1 and the edge of the intermediate sheet 23. The extension L3 can guarantee the permeation and circulation of air from the edge of the air layer space S1, that is, the opening to the outer surface of the moisture-permeable waterproof sheet (windproof layer) 9 on the upper surface of the heat shield, that is, the ventilation layer S0. It is good if it is around 50 mm.

Therefore, in the heat insulating panel 1 of the present invention, when both ends 2E of the air layer space S1 are the extension L3 of the heat insulating material 3, the space Os is already exposed to the outside through the moisture permeable waterproof sheet (windproof layer) 9. Because of the communication form, as shown in FIG. 2, into the wall space Ws,
Even if the vertical and horizontal members and the heat shield upper sheet 21 are mounted flush with each other by the windbreak layer 9, the airflow layer 9 outside the windbreak layer 9 for the air heated in the air layer space S1 in the heat shield 2 The air flow A1 to S0 is guaranteed, and the discharge of heat due to radiant heat and the prevention of dew condensation can be achieved.

Further, it is preferable to layer an auxiliary lower surface sheet piece 22 'having a radiant heat reflecting layer Re on the extension L3 of the heat insulating material 3 (claim 10). In this case, the heat shield 2
The upper and lower sheets 21, 22, 23 are made equal in length, and when the heat insulating panel is manufactured, the heat shield 2 and the heat insulating material 3 are laminated on the heat insulating material 3 with the extension portions L3 left above and below the heat insulating material 3. And then a narrow width (L3
The auxiliary lower surface sheet 22 ′ having the width) may be attached to the extension L 3 of the heat insulating material 3, and the entire surface of the heat insulating material 3 can be covered with the radiant heat reflecting layer Re.

Therefore, the sheets 21, 22 of the heat shield 2 are
Since 23 is of equal length, when manufacturing the heat shield 2, each sheet such as the top sheet 21, the bottom sheet 22, and the intermediate sheet 23, and the standing pieces 24 and 25 are supplied as continuous long pieces at necessary locations. Each sheet 2 by folding, bonding, etc.
The heat shield 2 can be manufactured by manufacturing the heat shield continuous body in a laminated form in which 1, 22, 23 are connected by the standing pieces 24, 25, and sequentially cut into predetermined dimensions to obtain the heat shield 2. Production of
And the production of the heat insulation panel 1 can be rationalized.

Further, as shown in FIG. 8, the heat shield 2 is preferably provided with air holes O2 and O2 'at least at both ends of the sheets 21 and 23 that define the upper surface of the air layer space S1 ( Claim 11). In this heat insulating panel 1, as shown in FIG. 8, the heat shield 2 includes upper and lower two layers of air space S1, and when the heat shield 2 has the same length as the heat insulator 3, the air space S1. Since the air holes O2 and O2 'are formed in at least both ends of the upper sheet 21 and the intermediate sheet 23 that define the upper surface of the heat insulating material, for example, when the heat insulating panel 1 is mounted in the wall space Ws, a heat shield material is used. Even if all the sheets cover the heat insulating material, the airflow A1 is generated in the air layer space S1 because the windshield 9 is in an air permeable state at the upper and lower ends of the heat shield.
The air heated by the radiant heat in the heat shield 2 can be transmitted to the outside through the windbreak layer 9. Of course, when the heat shield 2 has a two-layer structure of the upper sheet 21 and the lower sheet 22 and the air layer space S1 is one layer, the air holes O are formed only in the upper sheet 21.
2 may be provided, and the shape of the air hole O2 may be any other shape such as a cut long hole O2 ′ other than a circular shape, which cuts off a part of the surface of the sheet for ventilation.

The sizes of the air holes O2 and O2 'and the perforation density are determined by the both ends of the heat shield 2, that is, the outer ventilation layer S.
If the airflow A1 with 0 is particularly large at the inlet and the outlet, the airflow A1 that permeates the moisture-permeable waterproof sheet 9 from the ventilation layer S0 is from one end (lower end) to the other end of the air layer space S1. A suitable chimney effect can be obtained by suitably flowing through the heat shield 2 to the portion (upper end). Therefore, as the heat shield 2, a plurality of upper and lower sheets of equal length can be adopted, the heat shield 2 can be easily manufactured, and substantially the entire surface of the heat insulator 3 can be covered easily. Of course, when the extension L3 exists on the heat insulating material 3, the permeation of the air flow A1 due to the presence of the space Os and the holes O2,
The permeation of the air flow A1 due to the presence of O2 ′ further promotes the discharge of air in the air layer space S1.

All the sheets 21, 2 of the heat shield 2
It is preferable that 2, 22 ′ and 23 have moisture permeability and waterproof property (claim 12). The moisture permeable and waterproof property is imparted to the constituent sheets of the heat shield 3 even if the sheet has the radiant heat reflective layer Re by sticking an aluminum foil and a large number of fine holes (pinholes) h are scattered by the needling process. Just make a hole. And
Since all the sheets including the auxiliary lower surface sheet 22 'of the heat shield 2 have moisture permeability and waterproof property, even if the heat insulating material 3 absorbs moisture from the indoor side, the heat insulating material 3 → the lower surface sheet 22 (22') → The moisture of the heat insulating material 3 can be released to the ventilation layer S0 by the route of the air layer space S1 → the moisture permeable windbreak layer 9, and each sheet 21, 22,
22 'and 23 allow the self-breathing of water vapor (humidity) together with the windbreak layer 9 over the entire surface, and can also prevent dew condensation due to the temperature difference between the seat surfaces. Of course, also in this case, if the sheets 21 and 23 that define the upper surface of the air layer space S1 are provided with the air holes O2 at both ends, the discharge of air from the air layer space S1 is further facilitated. Therefore, it is possible to prevent a decrease in heat ray reflectivity due to dew condensation of the radiant heat reflective layer Re and a decrease in heat insulating function due to moisture absorption of the heat insulating material 3, and the weather resistance of the heat shield 2 and the heat insulating material 3 is improved.

The heat shield 2 is composed of a plurality of upper and lower sheets 21,
22 and 23 and the upright pieces 24 and 25 are paper materials and have the same length, and the upright pieces 24 and 25 are folded curved surfaces 24 'and 25 at both ends.
It is preferable that the upper surface sheet 21 and the lower surface sheet 22 are adhered to each other with a mark '(claim 13). In this case, in the heat insulating panel 1 in which the heat insulating material 2 is shorter than the heat insulating material 3 to form the extension portions L3 at both ends of the heat insulating material 3, the extension portions are formed at the upper and lower ends when the heat insulating material 2 is layered. Although L3 is exposed, it is possible to cover the entire surface of the heat insulating material 3 with the radiant heat reflective layer Re by attaching an auxiliary lower surface sheet 22 '(FIG. 3) to the extension L3.

The sheets 21, 22 of the heat shield 2 are
Since 23 and the standing pieces 24 and 25 have the same length, it is possible to rationalize the manufacturing by supplying each constituent material as a continuous sheet to the roller group device and cutting each dimension into each heat shield 2. is there. Further, it is possible to form the folded curved surfaces of the upright pieces 24 and 25 by folding and apply the adhesive to the curved curved surfaces 24 'and 25' during the traveling process of the sheet-shaped material. Moreover, the standing pieces 24, 2
Since 5 partitions the air layer space S1 over the entire length in the heat shield 2, each standing piece 24, 25 serves as an air flow guide wall, and the flow of the heated air A1 in the air layer space S1 due to the stack effect. It will be smooth.

Further, each of the sheets 21 and 23 and the standing pieces 24 and 25 other than the lower sheet 22 of the heat shield 2 has air holes O2.
It is preferable to have O2 '(claim 14). In this case, each air layer space S1 partitioned by the upright pieces 24, 25
Are vertically communicated with each other through the air holes O2, the air movement in each air layer space S1 is leveled, and the heat shield 2 as a whole produces a substantially uniform air flow. The function of discharging the converted air and the function of reducing the heat load of the heat shield 2 on the heat insulating material 3 can be smoothly achieved as a whole heat shield.

In the heat insulation panel 1, it is preferable that the heat insulation material 3 and the heat insulation material 2 are integrally fixed to both sides of the central stud 50 as shown in FIG. 6 (claim 15). In this case, the heat insulation panel 1 having the width of the space between the pillar 5 and the stud 50 as shown in FIG.
May be adhered to both sides of the prepared stud 50 on the side surface of the heat insulating material 3, the heat insulating material 2 may be bonded onto each heat insulating material 3, and a moisture-permeable waterproof non-woven fabric may be further bonded to the surface for integration. The heat insulating material 3 in which the heat shield 2 is integrated may be adhered and fixed to both sides of the stud 50, and then the windbreak layer 9 may be adhered to the heat shield upper sheet 21 and the stud upper surface so as to cover the upper surface. Therefore, the heat insulation panel 1 can be formed to have a width dimension between the pillars 5 and is a wide heat insulation panel having the studs 50 in the middle, so that the wall space Ws is formed.
The fitting and fixing work inside can be made more efficient. Of course, since the heat insulating panel 1 is fitted into the wall space Ws and then the studs 50 are fixed to the upper and lower cross members 6 and 60 by oblique driving of nails, it is easy to firmly fix the heat insulating panel 1 into the wall space Ws. Becomes

The heat insulation panel 1 is, as shown in FIG.
It is preferable that the heat insulating material 3 and the heat shielding material 2 are fixed to the non-woven fabric windbreak layer 9 while maintaining the space 3G for fitting the studs 50 (claim 16). In this case, the heat insulating material 3 and the heat shield material 2 are layered and integrated by setting the width between the predetermined vertical members (the pillars 5 and the studs 50), and then the space 3G is formed on the back surface of the windbreak layer 9 having the predetermined width. The heat shield upper surface sheet 21 may be layered. In addition, interval 3
G is a dimension for fitting the heat insulation panel 1 to the stud 50 of the shaft assembly, and is preferably formed to have a width dimension of the stud 50 +3 mm (1.5 mm on one side).

Therefore, since the heat insulating panel 1 is provided with the central portion 9C of only the non-woven fabric 9 which runs vertically in the center of the width, the heat insulating panel 1 has the width of two sheets of the standard panel 1 shown in FIG. Regardless of the presence, the center portion 9C is folded in half to have a half width, and the heat insulating material 3 is present on both sides, so that the panel can be stored, transported, and handled easily. As a matter of course, the fitting and fixing to the wall space Ws is performed by applying an adhesive to each side surface of each heat insulating material 3 and fixing the same to each of the columns 5 and the studs 50.

[0049]

BEST MODE FOR CARRYING OUT THE INVENTION [Heat Shielding Material (FIG. 5)] Intermediate Sheet 2
For 3 and the lower surface sheet 22, prepare a paper sheet having an aluminum foil layered on the surface in advance, prepare a paper sheet without the aluminum foil for the upper surface sheet 21, and perform a needling process on each sheet material to form fine holes. (Pinholes) h are perforated over the entire surface, and the dimension W between the vertical members (pillars 5, studs 50) of the applicable wall space Ws
The width W2 of the top sheet 21 and the bottom sheet 22 according to 1.
(W1-3 mm) for each vertical member size, and the width of the intermediate sheet 23 is for each standing piece 24, 25 size + both sides of the curved surface 23 '.
(Standard 20 mm)

As the standing pieces 24 and 25, paper sheets without aluminum foil are used, and the width is a predetermined thickness T of the heat shield 2.
2 (standard 30 mm) + upper and lower folding curved surfaces 24 ', 25' (standard 20 mm). Then, as shown in FIG. 5 (A), a sizing agent is applied to the contact surfaces of the folded curved surface 23 ′ of the intermediate sheet 23 and the folded curved surfaces 24 ′ and 25 ′ of the upright pieces 24 and 25, and the sheet materials 21 and 22. , 23, 24, 25 are adhered and pressed in a predetermined dimensional relationship, and the length is set to a predetermined horizontal member (horizontal bridge member 6, base member 60)
Space dimension-cut to a vertical distance D (standard 50 mm).

Therefore, the heat shield 2 includes the aluminum foil sheet, the top sheet 21, the intermediate sheet 23, the bottom sheet 22, and the standing pieces 24 and 25, all of which are long sheets in a roller group device (see FIG. (Not shown) can be rationally carried out in a flow process of crease formation, folding, sizing agent application, pressure bonding, and sizing, including layering of aluminum foil on a paper sheet and needling.

When the standing pieces 24, 25 of the obtained heat shield 2 are raised, as shown in FIG. 5B, the upper sheet 21 and the lower sheet 22 are formed by the standing pieces 24, 25 over the entire length. The sheets T are firmly connected, and the intermediate sheet 23 is connected in a spanning manner between the standing pieces 24, 25, and the thickness T2 is secured by the standing pieces 24, 25, and all the sheets 21, 22,
23 is a heat shield having fine pores h for moisture permeation and waterproof, and the intermediate sheet 23 and the lower surface sheet 22 are provided with the radiant heat reflecting layer Re on the surface.

[Insulation panel (FIG. 3)] Predetermined thickness (standard 5
0 mm), prepare a plate-shaped heat insulating material 3 such as a rigid urethane foam, a glass wool compression plate, etc., which fits into a predetermined wall space Ws,
The standing pieces 24 and 25 are laid down and the lower surface sheet 23 of the heat insulating material 2 in a laminated form is bonded to the form in which the extended portions L3 are provided at both ends of the heat insulating material 3. Then, on the extended portions L3 on both sides of the heat insulating material 3, the auxiliary lower surface sheet 22 'obtained by cutting the lower surface sheet material is used.
With the radiant heat reflection layer Re facing up. Then, on the heat shield upper surface sheet 21, a non-woven fabric moisture-permeable waterproof sheet 9 is formed.
Are layered in a form having protruding edges 9E and 9E 'at both ends and upper and lower ends and by applying a linear adhesive.

When the heat insulating material 2 of the obtained heat insulating panel 1 is erected, as shown in FIG. 3, the extension portions L3 at both ends of the surface of the heat insulating material 3 are covered with the auxiliary lower surface sheet 22 ', and the extension portion L3. Except for the above, the entire surface of the heat insulating material 3 is covered with the radiant heat reflective layer Re of the lower surface sheet 22 and the auxiliary lower surface sheet 22 ', and the moisture permeable waterproof sheet (nonwoven fabric sheet) 9 is covered with the heat insulating material 3. On the other hand, a mode in which the left and right ends are provided with protruding edges 9E and the upper and lower ends are provided with protruding edges 9E ′, and the air layer spaces S1 of the upper and lower two layers of the heat shield 2 are opened to the space Os on the extension L3 of the heat insulating material 3. It becomes the heat insulation panel 1.

[Insulation of outer wall (Figs. 1, 2 and 4)]
In the same manner as in Conventional Example 1 (FIG. 9), as shown in FIG. 4 (A), the base material 60 is fixed on the foundation B, and each pillar 5 and stud 5
0 is erected to form a wall space Ws, and as shown in FIG. 4 (B), the heat insulating panel 1 (FIG. 3) of the present invention is provided with an adhesive on the side surface of the heat insulating material 3 and then the windbreak layer 9 is formed. In the wall space Ws, the projecting edge 9E is placed on the surface of the vertical member (column 5, stud 50) and the projecting edge 9E 'is placed on the surface of the horizontal member (horizontal member 6, base material 60). Of the moisture permeable and waterproof sheet (windproof layer) 9 is fixed by the adhesive on the side surface of the heat insulating material 3, and the protruding edges 9E and 9E of the moisture permeable waterproof sheet 9 are fitted.
E'is fixed to the vertical member and the horizontal member with the nail N.

Next, on the outdoor side, as shown in FIG. 2, the ventilation furring strip 7 is nailed to each of the vertical members 5, 50 from above the breathable non-woven moisture-permeable waterproof sheet (windproof layer) 9 of the heat insulating panel 1. After fixing by striking, the outer wall member 8 is mounted on the ventilation furring member 7. On the indoor side, as shown in FIG. 2, the horizontal furring strip 70 fixed between the pillars 5 and the studs 50 and the moisture-proof sheet (waterproof layer) 10 and the interior surface material 80 via the vertical and horizontal members. Fix it.

In the obtained outer wall heat insulating structure, the air flow A0 entering from the air hole (not shown) of the drainage C at the lower end of the outer wall material 8 rises in the ventilation layer S0 inside the outer wall material. A part of A0 enters the space Os on the space D between the base material 60 and the heat shield 2 from the windproof layer 9 of the non-woven fabric as an air flow A1, passes through the air layer space S1 of the heat shield 2, and crosses the horizontal material. It flows out from the space Os existing in the space D between the heat shield 2 and the heat shield 2 to the ventilation layer S0 through the windbreak layer 9. Then, the air inside the heat shield 2 reflects the radiant heat from the outdoor side by the radiant heat reflecting layer Re, so that the humidity rises more than the air inside the ventilation layer S0.
Due to the chimney effect, the air resistance of the windbreak layer 9 is overcome and the airflow A1 flows in the heat shield from the lower side to the upper side, thereby suppressing an excessive increase in temperature in the heat shield 2.

The radiant heat heating component in the heat shield 2 is discharged as an air flow A1 in the air layer space S1 by the radiant heat reflective layer Re of the intermediate sheet 23 and the lower sheet 22, so that the heat shield 2 is excessively heated. The heating of can be suppressed. The heating of the outer wall heat insulating material 3 from the outdoor side is performed by the heat shield 2 of the heat insulating material 3.
Since the extended portion L3 exposed from is also protected by the radiant heat reflection layer Re, radiant heat heating is completely blocked, and only convection heating and conduction heating are performed. Therefore, the heat insulating material 3 is
Since the heating amount can be reduced as compared with the conventional outer wall heat insulating material in which the heat shield 2 does not exist, the heat insulating material thickness can be made thin, and the reduction of the heating amount to the heat insulating material 3 and the reduction of the heat insulating material thickness are combined. Insulation 3
The heat storage from the outside of the room can be greatly reduced, and the outer wall heat insulation structure that can follow the decrease of the outside temperature in a relatively short time can be obtained.

Further, since the upper sheet 21, the intermediate sheet 23, and the lower sheet 22 of the heat shield 2 are both provided with pinholes (fine holes) h and have moisture permeability and waterproof property, heat insulation by the moisture absorption of the heat insulator 3 is carried out. Each sheet of heat shield can prevent functional deterioration 2
Radiation heat reflection layer R due to dew condensation on 1, 22, 23
It is also possible to suppress deterioration of the reflection function of e. Since the heat shield 2 is protected by the windbreak layer (nonwoven fabric sheet) 9,
The deterioration of the function of the radiant heat reflective layer Re due to the contamination of the outside air can be suppressed, and the weather resistance of the heat insulating material 3 and the heat shield 2 is improved. Therefore, the outer wall heat insulating structure obtained by the practice of the present invention is
The heat transfer to the indoor side is the three elements of heat transfer: the heat insulating material 3 handles the conductive heat transfer, the convective heat transfer is handled by the air flow A1 of the heat shield, and the radiant heat transfer is handled by the heat shield. Radiant heat reflection layer R
e deal with high insulation due to relatively thin insulation thickness
In addition, it has an epoch-making heat insulation structure with low heat storage.

[Others] FIG. 8 is a modification of the invention in which the air layer space S1 is allowed to communicate with the outer surface of the windbreak layer 9 through the air.
That is, as shown in FIG. 8, by forming a suitable number of air holes O2 in the upper sheet 21 and the intermediate sheet 23, the air in the air layer space S1 that is radiantly heated inside the heat shield 2 is removed from the upper sheet 21. The moisture permeable waterproof sheet (windproof layer) 9 can be permeated through the air holes O2 to be suitably removed to the ventilation layer S0.

In this case, if the air holes O2 are perforated at a high density particularly in the upper and lower portions of the top sheet 21 and the intermediate sheet 23 and the number of perforations in the central portion is set to 0 or less, the deterioration of the radiation heat reflection function is suppressed to the minimum. However, the air circulation action in the air layer space S1 can be suitably exhibited by the chimney effect. Of course,
At the upper and lower ends of the upper surface sheet 21 and the intermediate sheet 23, it is possible and effective to form a cut hole O2 ′ from the edge as the air hole O2 in order to increase the air circulation.

As shown in FIG. 8B, the standing piece 2
If the air holes O2 are also formed in the partition wall surfaces f of 4, 25, the air flow A1 in each air layer space S1 in the heat shield 2 can be further leveled, and the ventilation function of the heat shield 2 becomes smooth. Become. Of course, the heat shield 2 may be slightly shorter than the heat insulator 3 to form a slight gap (for example, about 10 mm) between the upper and lower ends of the heat shield 2 and the cross members 6, 60. In this case, However, it is necessary to take care to maintain the effect of substantially the entire surface coating on the heat insulating material 3, while promoting the intake and discharge of the air flow A1 in the air layer space S1.

As shown in FIG. 8, when air holes O2 are perforated in the upper sheet and the intermediate sheet 23 of the heat insulating material 2, the heat insulating material 2 and the heat insulating material 3 have the same length, and the entire surface of the heat insulating material 3 is covered. Since the heat shield 2 can be covered with the heat shield 2, the heat shield 2 and the heat insulator 3 can be layered in the same length size. Therefore, the heat insulating panel can be manufactured by using the auxiliary lower surface as in the embodiment example (FIG. 3). Sheet 2
The separate bonding work of 2'is unnecessary, and the production of the heat insulating panel 1 can be rationalized.

In the embodiment of FIG. 2, the moisture-proof sheet (waterproof layer) 10 and the interior surface material 80 are stretched on the indoor side (rear surface) of the heat insulating material 3 with the horizontal furring strip 70 interposed therebetween. , Vertical material,
By properly selecting the thickness of the horizontal member and the thickness of the heat insulating panel 1, the back surface (inside surface of the heat insulating member 3) of the vertical member (pillar 5, stud 50) and the horizontal member (horizontal member 6, base material 60) can be selected. If the inner surface 80 and the waterproof layer 10 are arranged flush with the inner surface, the horizontal furring 70
Without it, it can be installed directly on the vertical and horizontal members, and the construction can be rationalized.

The heat insulation panel 1 is, as shown in FIG.
In a configuration in which the studs 50 are sandwiched in the middle, the heat insulating material 3 is fixed on both sides of the studs 50 to have a dimension between the columns 5 and 5, and the heat shield 2 is also a dimension across the columns 5 and 5 on both sides. If layered with a moisture-permeable waterproof sheet (windproof layer) 9 over the heat shields 2 on both sides, two heat insulating panels can be stretched at the same time in the wall space Ws between the columns 5 and 5. Workability is improved. Also insulation panels
As shown in FIG. 7, the wall space W between the pillars 5 and 5 is 1 even if the space 3G for inserting the stud 50 is opened in the middle as shown in FIG.
Two heat insulation panels can be installed on s at the same time. In addition, in this case, there is an advantage that the intermediate portion 9C of the moisture-permeable waterproof sheet (nonwoven fabric sheet) 9 can be folded in two during storage and transportation.

In implementing the invention of the outer wall heat insulating structure (Claim 1), the heat insulating panel 1 is used in the embodiment example (FIG. 2).
However, the mounting and fixing of the heat insulating material 3 in the wall space Ws is carried out by the conventionally used means (conventional example 1, conventional example 2) and by adopting the conventional heat insulating material, and the surface of the heat insulating material 3 is used. (Outside surface)
The heat shield 2 as a separate body is formed such that the back surface of the bottom sheet 22 is in close contact with the surface of the heat insulating material, and the windbreak layer 9 is in close contact with the top surface of the topsheet 21 so that the windbreak layer 9 is on the vertical member and the horizontal member. It may be fixed by abutting with a nail, and in this case, it is convenient to use the heat insulating material 3 having a problem in the surface adhesiveness, the degree of freedom in selecting the heat insulating material 3 is large, and it is also suitable for remodeling work. It is advantageous.

As the heat shield material 2, a lower surface sheet 22 having a radiant heat reflection layer Re is prepared in the same length as the heat insulating material 3, and an intermediate sheet 23 having a radiant heat reflection layer Re and a radiant heat reflection layer R are prepared.
The top sheet 21 without e is attached to the extension L of both ends of the heat insulating material 3.
Prepare a heat shield 2 with a short length of 3, and manually bond the standing pieces 24, 25, the top sheet 21, the intermediate sheet 23, and the bottom sheet 22 to form the heat shield 2, and layer it on the heat insulator 3. You may form it. In this case, it becomes possible to form the heat shield 2 with a sheet material that is relatively rigid and has a large heat-retention property, such as thick paper or plastic material, which is difficult to process with the roller device, and the physical properties of the lower surface sheet 22 are reduced. Accordingly, the degree of freedom in selecting the heat insulating material 3 is increased, and the filling and foaming type can be easily adopted.

[0068]

According to the outer wall heat insulating structure of the present invention, since the radiant heat reflecting layer Re of the heat shield 2 blocks the radiant heat of the heat insulating material 3 from the outdoor side, the heat load of the heat insulating material 3 from the outdoor side is prevented. Is only convective heat transfer and conductive heat transfer, and the heat shield 2
By the respiration of water vapor from the air layer space S1 and the air permeable layer S0, it is possible to prevent dew condensation inside the heat shield 2 and also to prevent the temperature inside the air layer space S1 from rising, and to heat the heat insulator 3 from the outside. The load can be significantly reduced compared to the heating load on the heat insulating material in the conventional outer wall heat insulating structure.

The heat insulating material 3 can be made thin, and the heating load on the heat insulating material 3 can be reduced, so that the heat storage amount of the heat insulating material 3 can be greatly reduced, and the outside temperature can be reduced in a short time. The heat insulation structure that can be followed is provided, and it is possible to provide an energy-saving outer wall heat insulation structure for buildings, especially for detached houses. Moreover, since the heat insulating material 3 can be made relatively thin, the thickness of the heat insulating material 2 + the heat insulating material 3 can be approximated to the thickness of the heat insulating material of the same material in the related art, and the conventional outer wall heat insulating structure shown in FIG. In this case, the heat shield 2 and the heat insulating material 3 can be arranged in the space of the heat insulating material, and it is possible to provide the outer wall heat insulating structure with high heat insulation and low heat storage without increasing the outer wall thickness.

Further, the heat insulating panel (FIG. 3) of the present invention in which both ends of the heat insulating material 3 have the extension portions L3 and are laminated with the heat insulating material 2 and the windbreak layer 9 is the same as the heat insulating panel 1 in the wall space Ws. The heat insulating material 3, the heat shielding material 2, and the windbreak layer 9 can be stretched rationally by simply fitting and fixing to the outer wall heat insulating structure with high heat insulation and low heat storage. Moreover, since the air layer space S1 of the heat shield 2 is open above the heat insulating material extension portion L3, the upper sheet 21 and the intermediate sheet 23 of the heat shield 2 are non-breathable and the vertical members 5 and 50 are not connected. Even if it is mounted flush with the surface, the required air flow A1 of the air layer space S1 in the heat shield can be ensured by the space Os on the extension L3, and is generated in the radiant heat reflection layer Re by the air circulation in the air layer space S1. The amount of heat can also be expediently removed, and a high heat insulation and low heat storage outer wall heat insulation structure can be implemented rationally.

Further, in the heat insulating panel (FIG. 8) in which the heat insulating material 2 and the heat insulating material 3 have the same length, and the heat insulating material upper sheet 21 and the intermediate sheet 23 have air holes O2 at both ends, Since each of the sheets 21, 22, 23 of the heat shield 2 has the same length, it is possible to manufacture the heat shield 2 as a continuous elongated body and cut it into the predetermined size of each heat shield. Is easy to manufacture, and the entire surface is covered with the radiant heat reflective layer Re.
The production of can be rationalized. Further, air communication between the air layer space S1 of the heat shield 2 and the ventilation layer S0 on the outer surface of the moisture-permeable waterproof sheet (windproof layer) is possible by the air hole O2 at the end of the sheet that defines the upper surface of the air layer space S1. Therefore, it is not necessary to provide pinholes h in the radiant heat reflection layer Re of the heat shield 2, and the heat shield 2 can be manufactured in a rational manner, and the outer wall heat insulating structure of the present invention with high heat insulation and low heat storage is suitable. Can be implemented. The heat-insulating panel 1 of the present invention is a highly practical invention that can be easily adopted not only when a new building is built but also in a remodeling heat-insulating structure of a building outer wall that is in service.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an outer wall heat insulating structure of the present invention.

FIG. 2 is an explanatory view of an outer wall heat insulating structure of the present invention, (A)
Is a cross-sectional view and (B) is a BB cross-sectional view of (A).

3A and 3B are explanatory views of the heat insulation panel of the present invention, in which FIG. 3A is a perspective view and FIG. 3B is a sectional view taken along line BB of FIG.

FIG. 4 is a construction explanatory view of the outer wall heat insulating structure of the present invention,
(A) is a perspective view of a vertical member arrangement state, (B) is a perspective view of a state in which a heat insulating material and a heat shielding material are arranged in the wall space Ws, (C) is a sectional view taken along line CC of (B), (D). FIG. 7B is a sectional view taken along line DD of FIG.

FIG. 5 is an explanatory view of the heat shield 2 used in the present invention,
(A) is a bending state explanatory drawing, (B) is a standing state explanatory drawing.

6A and 6B are modified examples of the heat insulation panel of the present invention, in which FIG. 6A is a perspective view and FIG. 6B is a sectional view taken along line BB of FIG.

FIG. 7 is another modified example of the heat insulation panel of the present invention,
(A) is a perspective view, (B) is a BB sectional view of (A).

8A and 8B are explanatory views of a heat shield used in another heat insulating panel of the present invention, where FIG. 8A is an overall perspective view and FIG. 8B is a perspective view with a top sheet 21 removed.

9A and 9B are explanatory views of Conventional Example 1, in which FIG. 9A is a partially cutaway perspective view from the outside of the room, and FIG. 9B is a sectional view taken along line BB of FIG.

FIG. 10 is a cross-sectional view of Conventional Example 2.

[Explanation of symbols]

1: heat insulation panel, 2: heat shield, 2E:
Edge, 3: heat insulating material, 3G: spacing,
5: Pillar (vertical member), 6: Horizontal member (horizontal member), 7: Ventilation furring material, 8: Outer wall material, 9: Windproof layer (moisture permeable waterproof sheet), 9E, 9E ': Protruding edge, 10 : Waterproof layer (moisture-proof sheet), 21: Top sheet, 22: Bottom sheet, 22 ': Auxiliary bottom sheet, 23: Intermediate sheet, 24, 25: Standing piece, 24', 25 ': Folded surface, 50: Pillar ( Vertical material), 60: Base material (horizontal material), 70: Horizontal furring material, 80: Interior surface material,
A0, A1: Air flow, D: Interval,
L3: extension part, Os: space, O2, O2 ': air hole, Re: radiant heat reflection layer, S0: ventilation layer,
S1: Air layer space, Ws: Wall space

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04B 2/56 645 E04B 2/56 645B

Claims (16)

[Claims] 1. Inside a wall space (Ws) formed by vertical members such as pillars (5) and studs (50) and horizontal members such as horizontal members (6) and base materials (60) on the indoor side. , The heat insulating material (3) is arranged, and at least the upper surface sheet (2
1) and a lower surface sheet (22), at least the lower surface sheet (22) includes a radiant heat reflective layer (Re), and an upper and lower plurality of sheets (21, 21) including an air layer space (S1) between the sheets.
The heat shield (2), which is composed of 22, 23) and has the function of reflecting radiant heat on the surface of the sheet, is arranged in the form of close contact with the lower sheet (22) and the surface of the heat insulator (3). A windbreak layer (9) is arranged in a close contact form on the outdoor surface of the windbreak layer (9), and the windbreak layer (9) is stretched on the vertical members (5, 50) and the horizontal members (6, 60). 9) An outer wall material (8) is stretched on the surface with a ventilation layer (S0) interposed therebetween to allow water vapor communication between each air layer space (S1) and the ventilation layer (S0), and also to provide a heat insulating material (3). ) An outer wall heat insulation structure in which substantially the entire surface of the outdoor side is covered and protected by a heat shield (2). 2. The outer wall according to claim 1, wherein the heat shield (2) is arranged such that both end edges (2E) of the air layer space (S1) maintain a space (D) from each lateral member (6, 60). Thermal insulation structure. 3. The heat shield (2), wherein each sheet (22, 23) defining the lower surface of the air layer space (S1) has a radiant heat reflective layer (Re) on the surface, and the radiant heat reflective layer (Re). The outer wall heat insulating structure according to claim 1 or 2, wherein the entire surface including the extension (L3) of the heat insulating material (3) is covered. 4. The outer wall heat insulating structure according to claim 1, wherein at least the upper surface sheet (21) of the heat shield (2) has a moisture permeation waterproof property. 5. The heat shield (2) is made of all sheets (21, 2).
The outer wall heat insulating structure according to any one of claims 1 to 4, wherein (2, 23) is moisture-permeable and waterproof. 6. The outer wall heat insulating structure according to claim 1, wherein the heat shield (2) and the heat insulator (3) are used by being layered and integrated in advance. 7. A heat shield in which an interior surface material (80) is stretched through a moisture-proof sheet (10) on the indoor side surface of the wall space (Ws) and stretched outside the wall space (Ws). The outer wall heat insulating structure according to any one of claims 1 to 5, wherein a heat insulating material (3) is arranged in a space between the lower surface sheet (22) and the moisture-proof sheet (10) of the material (2). 8. At least a bottom sheet (22) including at least a top sheet (21) and a bottom sheet (22).
A plurality of upper and lower sheets (2) provided with a radiant heat reflection layer (Re).
1, 22, 23) and each sheet (21, 22, 2)
Between 3), the heat shield (2) having an air space (S1) connected by a group of foldable standing pieces (24, 25) is used as an intermediate layer, and the upper surface of the top sheet (21) is A windbreak layer (9) and a heat insulating material (3) on the lower surface of the lower surface sheet (22).
And heat insulation for the outer wall in which the air layer space (S1) is layered so that water vapor can communicate with the outer surface of the windbreak layer (9), and substantially the entire surface of the heat insulating material (3) is covered with the radiant heat reflective layer (Re). panel. 9. An extension (L3) is formed at both ends of the heat insulating material (3), and both edges (2E) of the air layer space (S1) of the heat shield (2) are spaces above the extension (L3). The heat insulating panel according to claim 8, which is open to (Os). 10. The heat insulation panel according to claim 8, wherein an auxiliary lower surface sheet piece (22 ′) having a radiant heat reflection layer (Re) is layered on the extension portion (L3) of the heat insulation material (3). 11. The heat shield (2) is an air space (S1).
The air holes (O2, O2 ') are provided at least at both ends of the sheets (21, 23) defining the upper surface of the sheet.
The heat insulation panel according to any one of 1 to 10. 12. All sheets (21, 2) of heat shield (2)
The heat insulating panel according to any one of claims 8 to 11, wherein (22, 22 ', 23) has moisture permeability and waterproof property. 13. The heat shield (2) comprises a plurality of upper and lower sheets (2).
1, 22, 23) and the upright pieces (24, 25) are paper materials and have the same length, and the upright pieces (24, 25) are folded curved surfaces (24 ', 25') at both ends, and the top sheet (21 ) And the lower sheet (22), the heat insulating panel according to any one of claims 8 to 12. 14. Each sheet (21, 23) other than the bottom sheet (22) of the heat shield (2) and the standing piece (24, 25).
Provided with air holes (O2, O2 ').
The heat insulation panel according to any one of 3 above. 15. The heat insulating panel according to claim 8, wherein a heat insulating material (3) and a heat insulating material (2) are integrally fixed to both sides of the central stud (50). 16. The heat insulating material (3) and the heat shielding material (2) are fixed to the non-woven fabric windproof layer (9) while maintaining a space (3G) for fitting the stud (50). Insulation panel of paragraph 1.