JP2003321885A - External wall heat insulating structure using heat shield, and heat insulating panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external wall heat insulating structure for a building, which reduces heating load on a heat insulating material 3 to reduce heating storage load of the same, and can follow fall of ambient temperature in a short period of time. <P>SOLUTION: According to the external wall heat insulating structure, vertical members such as columns 5 and studs 50 and horizontal members such as beams 6 and sills 60 form a wall space Ws, and the heat insulating material 3 is arranged on the inside of the wall space Ws, followed by abutting a heat shield 2 on an inside surface of the heat insulating material 3. The heat shield 2 consists of a plurality of upper and lower sheets 21, 22, 23, and exhibits radiant heat reflective function by means of a radiant heat reflective layer Re on a surface of the sheet and air moving function by means of an air layer space S<SB>1</SB>between the sheets. Then, a structural face plate 4 is arranged on the outside of the heat shield 2 to rigidly stretch the face plate 4 to the vertical and horizontal members, and an outer wall material 8 is stretched over a surface of the face plate 4 via a venting layer S<SB>0</SB>, to thereby pass water vapor through the air layer space S<SB>1</SB>and the venting layer S<SB>0</SB>. Further, heating of the heat insulating material 3 by radiant heat from the outside is blocked by the heat shield 2, and therefore heating load on the heat insulating material 3 is reduced, to thereby reduce heat storage of the same. <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 exhibits a conduction heat blocking function, if the heat insulating material layer is thickened to enhance the heat insulating function, the heat storage function is also enhanced. For example, even if the outside air temperature decreases at night, the heat insulating material serves as a heat storage body for a long time. The amount of heat storage is continuously released to the indoor side, which becomes a load of indoor cooling energy.

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. To prevent the heat load to the heat insulating material immediately below the heat shield material layer, and attach a structural face material to the heat shield material, high heat insulation, low heat storage, which could not be predicted in each conventional example, In addition, an epoch-making outer wall heat insulation structure that exhibits the ability to prevent dew condensation, and
The present invention provides a heat insulating panel for an outer wall.

[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 arranged on the indoor side in the space Ws (FIG. 4), and the outer surface of the heat insulating material 3 is composed of a plurality of upper and lower sheets 21, 22 and 23 including at least an upper sheet 21 and a lower sheet 22. , An air layer space S1 is provided between the sheets 21, 22 and 23, and at least the lower surface sheet 22 has a radiant heat reflection layer R.
The heat shield 2 which has a function of radiant heat reflection 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, and the face material 4 is arranged on the outdoor surface of the heat shield 2. Then, the face member 4 is stretched over the surfaces of the vertical members 5, 50 and / or the horizontal members 6, 60, and the outer wall member 8 is stretched over the surface of the face member 4 with the ventilation layer S0 interposed therebetween. The outer wall heat insulating structure enables water vapor communication between the layer space S1 and the ventilation layer S0 and covers and protects substantially the entire outside surface of the heat insulating material 3 with the heat shield 2 (claim 1).

The ventilation layer S0 is preferably a windproof layer (moisture permeable waterproof sheet) 9 on the surface of the vertical members 5, 50 as shown in FIG.
The outer wall member 8 is attached to the windbreak layer 9 of the vertical members 5 and 50 by using the ventilation furring strip 7, and is formed between the outer wall member 8 and the windbreak layer 9, but the windbreak layer 9 is essential. If the face material 4 is properly selected, the windbreak layer 9 can be eliminated and the ventilation layer S0 can be used as the heat shield material 2.
It suffices if it is possible to communicate with the air layer space S1. Further, the face material 4 is a structural material facing a lateral stress such as an earthquake or wind, and is a moisture permeable face plate such as structural plywood or a sheathing board, or a non-moisture permeable face plate such as a particle board or a structural panel. The heat shield 2 may be fitted and then stretched, but it is convenient to work after the heat shield 2 is fixed to the face material 4 in advance.

In addition, in order to exert the function as a structural member, the tension of the face member 4 is usually nailed and stretched to the vertical member and the horizontal member, but the strength of the face member 4 and the strength of the framing member are increased. Accordingly, it is possible to nail only the vertical members or only the horizontal members. When nailing only the vertical members, a gap for water vapor communication is formed at the upper and lower ends of the face member 4. It will be possible. Further, the air layer space S1 of the heat shield 2 may have a single layer of air layer space S1 in which the heat shield 2 is a two-layer structure having only the upper sheet 21 and the lower sheet 22, or the sheet has a multi-layer form ( A plurality of air layer spaces S1 may be formed by three or more layers), but at least 1 in order to release the moisture (water vapor) inside the heat shield 2 and to effectively exhibit the radiant heat reflection effect. Layer air space S
1 is mandatory.

The "close form" between the lower surface sheet 22 of the heat shield 2 and the surface of the heat insulating material 3 depends on the lower surface sheet 22 and the heat insulating material 3.
The surface means a form in which an air layer does not occur at the interface, and has a broad meaning including both surface-bonded and pressed closely. In addition, "protection of substantially the entire outdoor surface of the heat insulating material 3 with a heat shielding material" refers to a form of coating protection when the radiation heat blocking effect on the surface of the heat insulating material 3 is substantially the same as in the case of full surface coating. It also includes the case where both ends of the heat insulating material 3 are slightly exposed from the lower surface sheet 22. The radiant heat reflection layer Re is the bottom sheet 2
Since the transfer of radiant heat to the surface of the heat insulating material 3 can be prevented even if only 2 is provided, it is essential to apply the radiant heat reflective layer Re to the surface of the lower surface sheet 22, but also to the sheets 21, 23 other than the lower surface sheet 22. If the radiant heat reflection layer Re is provided, 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.

Further, in order for the heat shield 2 to reduce the load heat storage to the heat insulator 3, only the function of reflecting the radiant heat is important, and the air convection in the air layer space S1 is not necessary, but the heat shield is required. 2 and the heat insulating material 3 to prevent dew condensation, the air space S
It is necessary for water vapor (moisture) to permeate between 1 and the air layer S0 outside the face material 4. As means for allowing the air layer space S1 to communicate with the air-permeable layer S0 with water vapor, when the face material 4 is a moisture impermeable material, the face material 4 has a hole O4 for air circulation as shown in FIG. Are provided on the upper and lower sides, and as shown in FIG.
Appropriate air holes O2 and O2 'are formed in the vicinity of both longitudinal ends of the upper sheet 21 and the intermediate sheet 23 that define the upper layer of the air layer space S1, or, as shown in FIG.
The heat shield 2 is made shorter than the heat insulator 3, and the upper sheet 21 and the intermediate sheet 23 do not exist on the extension portions L3 (FIG. 3) at both ends of the heat insulator 3 so that a space is provided at the end of the air layer space S1. It is preferable to form Os and form the hole O4 for air circulation in the space Os of the face material 4. In addition, the top sheet 21 and the intermediate sheet 23 are made to be moisture permeable through pinholes h, etc. on the entire surface, and a moisture permeable material is also selected for the face material 4, and the face material 4 and the top sheet 21 are dotted or linear adhesive. If applied, it may be adhesive with moisture permeability.

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, and at the same time, the air layer space S
1 and the vapor layer S0 outside the face material 4 can prevent dew condensation of the face material 4 and the heat shield 2 and prevent deterioration of the radiant heat reflection function due to dew condensation of the heat shield 2. The prevention of moisture absorption and corrosion and the reduction of heat storage of the heat insulating material 3 can be maintained for a long time, and three elements of heat transfer, that is, conduction, convection,
High thermal insulation with high durability and coping with all three factors of radiation,
An epoch-making high-performance adiabatic structure with low heat storage can be obtained.

Further, since the heat insulating material 2 is in the form of sandwiching the heat insulating material 3 and the face material 4, contamination and deformation are protected, and the heat insulating material 3 or the face material 4 may be attached as an integrated layer. If the heat insulating material 3, the heat shield material 2, and the face material 4 are integrated in advance, the construction becomes easier. Moreover, since the face material is fixed to the vertical members 5 and 50 and the horizontal members 6 and 60 as a structural member by nailing or the like, the outer surface of the heat shield 2 does not project from the surface of the vertical members 5 and 50 and the outer wall An increase in the thickness of the structure can be suppressed. That is, the radiant heat reflection layer Re of the heat shield 2 reduces the heating load on the heat insulator 3, and the heat insulator itself can be made thin, so that the total thickness of the heat shield 2 and the heat insulator 3 is the same as the conventional one. Since it can be made to have almost the same thickness as the material's heat insulating material, it can be stored in the conventional heat insulating material space regardless of the high-performance heat insulation structure with low heat storage and high heat insulation, and the outer wall thickness is almost the same as the conventional outer wall thickness. Can be formed.

Further, it is preferable that the face material 4 is moisture permeable and is integrally laminated with the top sheet 21 of the heat shield 2. In this case, a structural plywood (wood plywood) or a sheathing board may be used as the face material 4, and the upper sheet 21 is provided with a layered structure that imparts moisture permeability by scattering pinholes or the like and does not lose moisture permeability. For example, it becomes possible to breathe steam on the entire surface of the face material 4 and the top sheet 21, and the heat shield 2
Also, dew condensation on the surface material 4 can be prevented. Further, it is easy to build the heat shield 2 which is relatively difficult to handle because it is integrated with the face material as the structural material.

The face material 4 is the air layer space S of the heat shield 2.
1 and the ventilation layer S0 are preferably provided with holes O4 for ensuring air communication, and are integrated with the heat shield upper surface sheet 21 (claim 3). In this case, as the face material 4, not only moisture-permeable materials such as structural plywood and sheathing board, but also non-moisture-permeable materials such as particle board, hard board, structural panel can be used. By providing the air holes O2 in each sheet as shown in FIG. 7 and configuring the holes O4 of the face material 4 and the air layer space S1 of the heat shield 2 in an air communication form, the inside of the heat shield 2 is also illustrated. The airflow A1 is generated as shown in 2 (B), and the heat shield 2 can release the amount of heat generated by the radiant heat reflection action to the ventilation layer S0, and the heat insulation function and the heat storage prevention function of the outer wall structure are further improved.

Further, as shown in FIG. 2, the heat shield 2 is arranged so that both end edges of the air layer space S1, that is, both end edges of the upper sheet 21 and the intermediate sheet 23 maintain a distance D from the horizontal members 6, 60. It is preferably arranged (Claim 4). 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.
It is preferable to cover the entire surface of the heat insulating material 3 in order to prevent radiant heat to the heat insulating material 3, but the distance D between the horizontal members 6 and 60 of the air layer space S1 of the heat insulating material is small (3 to 5 cm). In the case of, even if the heat insulating material 3 is exposed at the interval D, it is an exposed surface that can be ignored with respect to the total surface area of the heat insulating material, and is substantially the same as the covering of the entire surface by the heat insulating material 2 to the heat insulating material 3. A radiant heat blocking effect can be expected. And each sheet 21, 22, 23 of the heat shield 2
When the heat shields 2 have the same length, the heat shield 2 can be cut into a predetermined size after being manufactured as a continuous long product, so that the manufacture of the heat shield 2 can be rationalized.

Further, in this case, as shown in FIG. 2 (B), if the hole O4 is arranged at a position above the interval D of the face material 4, the hole O4 will be inserted into the jig for pushing the heat insulating material 3 (see FIG. It can also be used as an insertion hole (not shown), and the jig can press the heat insulating material 3 at the extended portion L3 of the interval D. Therefore, the three members of the heat insulating material 3, the heat shield material 2, and the face material 4 are integrated in advance. The heat-insulating panel 1 is layered, and the heat-insulating panel 1 is pulled inward from the inside of the heat-insulating panel 1 by a conventional suction means and is pushed in by a jig from the hole O4 of the face member 4 to form a vertical member. 5,
Construction between the 50 and the horizontal members 6, 60 becomes easy.

Therefore, the heat shield 2 is separated from the horizontal members 6 and 60 by the distance D.
(FIG. 2) is attached so that spaces Os for air circulation can be formed on the heat insulating material 3 at both ends of the air layer space S1 as shown in FIG. 2, and the face material 4 has holes corresponding to the space Os. By perforating O4, the heat shield upper surface sheet 21 is a surface material flush with the surfaces of the vertical members (columns 5, studs 50) and the horizontal members (horizontal members 6, base materials 60) as shown in FIG. 4 is secured in such a form that the ventilation path (arrow A1) of the air layer space S1 can be suitably merged with the ventilation layer S0 on the inner surface of the outer wall material through the hole O4 of the face material 4 even when the air layer space S1 is attached. As a result, both ends of the air layer space S1 can communicate with the outer surface of the top sheet 21 (the ventilation layer S0). Then, the air flow A in the air layer space S1
1 (FIG. 2) also flows from the lower end to the upper end of the air layer space S1 and becomes smooth.

Further, the heat shield 2 has a radiant heat reflecting layer R on the surfaces 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 5).
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 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, as shown in FIG. 7, each air layer space S
Since heat rays are reflected for each one, even a small amount of heat rays transmitted through the intermediate sheet 23 can be completely blocked by the lower surface sheet. Moreover, since the extension L3 of the heat insulating material 3 protruding from the heat shield 2 is also covered with the radiant heat reflection layer Re, the extension L3 of the heat insulating material 3 is formed.
The heat ray heating upward is also reflected by the radiant heat reflection layer Re and is discharged to the outer surface side (the ventilation layer S0) of the heat shield upper sheet 21 as the heating air flow A1 together with the heating air in each air layer space S1. Heating of the heat insulating material 3 by radiant heat from the outside can be completely prevented.

Further, in the heat shield 2, it is preferable that the sheets 21 and 23 defining the upper surface of the air layer space S1 have moisture permeability and waterproof property (claim 6). In this case, in order to impart moisture permeability and waterproof property to each sheet of the heat shield material, as shown in FIG. 5, a large number of pinholes (fine holes) h may be bored in each sheet by needling. Then, the air flow A0 entering the ventilation layer S0 from the outside
If the upper sheet 21 and the intermediate sheet 23 exposed to the temperature difference between the heat shield 2 and the air in the air layer space S1 are moisture permeable, dew condensation inside the heat shield 2 can be prevented, and the heat shield 2 Condensation stains on the radiant heat reflective layer Re can be suppressed, and the weather resistance of the heat shield 2 is improved. Of course, if the lower sheet 22 is also moisture-permeable and waterproof,
The function of preventing dew condensation is further improved, and deterioration of the heat insulation function due to moisture absorption of the heat insulating material 3 can be suppressed.

Further, the face material 4 and the heat shield 2 are integrally layered so that both end edges of the air layer space S1 communicate with the holes O4 of the face material 4 to form the face material 4 in the longitudinal members 5, 50. It is preferable that the windproof layer 9 is stretched on the upper surface of the face member 4, and the outer wall member 8 is stretched on the windbreak layer 9 via the ventilation furring strip 7 (claim 7).
The windbreak layer 9 is preferably a thin spunbonded nonwoven fabric having a high air permeability. Therefore, since the heat shield 2 is attached as an integral part of the face material 4 as a structural material, and the windbreak layer 9 is stretched on the face material, the heat shield 2 is stretched and the windbreak layer is provided. It is easy to stretch 9 and, as shown in FIG. 2B, the air layer space S1 and the hole O4 communicate with each other to allow ventilation inside the heat shield 2. 21,2
The choice of 2,23 is free.

Since the face material 4 and the heat shield 2 are protected by the windbreak layer 9, the inside of the heat shield 2 is contaminated by the outside air flowing in the ventilation layer S0, and the rainwater ventilation layer S0 to the face material 4 are removed. Intrusion through the holes O4 can be prevented, and dew condensation inside the face material 4 and the heat shield can be prevented by the moisture permeability of the windbreak layer 9. Moreover, the ventilation layer S0 that conducts outside air is provided between the windbreak layer 9 and the outer wall member 8.
Exists, and the air layer space S1 of the heat shield communicates with the hole O4 of the face material 4, so that the air flow A0 in the ventilation layer S0 discharges the heated air flow A1 in the heat shield 2. And the weather resistance of the outer wall material 8, the face material 4, the heat shield 2, and the heat insulating material 3 is improved.

The heat shield 2 is made of all the sheets 21, 22,
23 is preferably moisture-permeable and waterproof (claim 8). 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 (humidity), the heat insulating material 3 can release the moisture to the heat insulating material 2, and the heat insulating material can be released. Since the deterioration of the heat insulating function due to the moisture absorption of No. 3 can be suppressed, the degree of freedom in selecting the material used as the heat insulating material increases. Further, deterioration of radiant heat reflection function due to dew condensation of the heat shield 2 can be suppressed, and the weather resistance of the heat insulator 3 and the heat shield 2 is improved.

Further, it is preferable that the heat shield 2, the heat insulator 3 and the face material 4 are layered and integrated in advance (claim 9). In this case, as shown in FIG. 3, the lower surface sheet 22 of the heat insulating material 2 is attached 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 on the extended portion L3. Sheet 2
2'may be attached to form the space Os for air circulation in the extension L3, and then the face material 4 may be attached to the upper surface sheet 21. Alternatively, the heat shield 2 may be attached to the face material 4 in advance. After the auxiliary lower surface sheet 22 'is attached to the extension L3 of the heat insulating material 3, the lower surface sheet 22 of the heat shield 2 with the surface material 4 is attached to the heat insulating material 3.
It may be attached to the exposed part.

Alternatively, as shown in FIG. 7, each of the sheets 21, 22, and 23 of the heat shield 2 is made to have the same length as the heat insulator 3, and the top sheet 2
The heat shield 2 having a large number of air holes O2 formed in the first and intermediate sheets 23 may be layered and integrated with the heat insulator 3 and the face material 4.
Therefore, since it is an integrated panel of the face material 4, the heat shield material 2, and the heat insulating material 3, the outer wall construction is performed by suction-fitting the panel into the wall space Ws with the heat insulating material 3 having the side surface provided with the adhesive as the indoor side. Then, if the face member 4 is firmly fixed to the vertical members 5, 50 and the horizontal members 6, 60, the heat insulating member 3, the heat shield member 2, and the face member 4 into the wall space Ws.
Can be achieved at the same time, and the implementation of the heat insulation structure of the outer wall can be rationalized. Moreover, the work of layering and integrating the face material 4, the heat shield 2 and the heat insulating material 3 can be carried out outside the site, and therefore, by forming a uniform heat insulating panel for outer wall by factory production, a high quality building can be obtained. It can be provided reasonably.

Further, an interior surface material 80 is stretched on the indoor surface of the wall space Ws via a moisture-proof sheet 10, and a heat shield material 2 stretched by an integrated surface material 4 on the outdoor side of the wall space Ws. It is preferable to dispose the heat insulating material 3 in the space between the lower sheet 22 and the moisture-proof sheet 10 (claim 10).

In this case, the insulative heat insulating material 3 such as glass wool can be blown and filled, but it is convenient that the lower surface sheet 22 of the heat shield 2 has the same size as the heat insulating material layer. Further, since the heat insulating material 3 is in the enclosed form, various conventional heat insulating materials including a plate-shaped heat insulating material can be adopted, and the degree of freedom in selecting the heat insulating material is improved. It is also possible to fill the heat insulating material by injecting and foaming the foam heat insulating material on site. Therefore, a relatively low-cost heat insulating material can be adopted, and furthermore, the heat insulating material 3 can be easily arranged 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 a plurality 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 is used as the intermediate layer, and the face sheet 4 is provided on the upper surface of the upper sheet 21.
The heat insulating material 3 is provided on the lower surface of the lower surface sheet 22, and the heat insulating material 3
Is a configuration in which the extension portions L3 at both ends protrude from the edge 2E of the air layer space S1 of the heat shield 2, and the face material 4 has a water vapor discharge structure at least above the extension portion L3 and has a protruding edge for fixing. 4E and 4E 'are layered and the radiation heat reflection layer Re covers substantially the entire surface of the heat insulating material 3 (claim 11).

The "water vapor releasing structure" of the face material 4 means that if the face material is moisture permeable, naturally, the upper and lower parts of the face material located on the extension L3 can release water vapor, and Even if the face material 4 is impermeable to moisture, as shown in FIG. 1 and FIG.
Since it suffices to arrange the holes O4 in the upper and lower parts of the face material 4,
The structure in which the face material 4 has moisture permeability also has holes O for air circulation.
It is also meant to include a structure including 4. Further, as is apparent from FIG. 3, the extension portions L3 at both ends of the heat insulating material 3 are end portions on both sides which are not covered by the upper sheet 21 and the intermediate sheet 23 of the heat shield material 2, and are the edge of the air layer space S1. 2E corresponds to the edges of the top sheet 21 and the intermediate sheet 23 that define the top surface of the air layer space S1.

Further, the extension L3 has a space Os for ensuring the flow of air from the end edge 2E of the air layer space S1, that is, the opening to the outer surface side of the heat shield upper sheet 21, that is, the ventilation layer S0. It only needs to be formed, while the heat shield 2 of the heat insulator 3
From the viewpoint of protective coating by L3, it is preferable that L3 is short, so that the length of L3 may be around 50 mm. If the heat shield 2 has a two-layered structure including only the upper sheet 21 and the lower sheet 22, one air layer space S1 can be formed between the sheets, and the upper sheet 21, the intermediate sheet 23, and the lower sheet 2 can be formed.
In the case of the three-layer structure of No. 2, as shown in FIG.
1 can be formed, but in the present invention, the air layer space S
Since 1 is indispensable, the upper and lower sheets may include at least the upper sheet 21 and the lower sheet 22. Of course, a plurality of intermediate sheets 23 may be used, but one sheet is functionally sufficient.

Further, since the face material 4 is a structural material for the panel as well as a structural material for the outer wall, the projecting edges 4E, 4E '.
Is for rigidly connecting the vertical members 5,50 and the horizontal members 6,60 around the panel to the rigid structure when the panel is assembled to the frame, depending on the strength of the face member 4 and the mounting structure. Is
Only the protruding edges 4E on both sides for fixing the vertical member may be used. In this case, since the ventilation gaps can be formed at the upper and lower edges of the face member 4, the face member 4 is a non-moisture permeable structural material, and
It is also possible to use a face material without air holes O4.

Since it is necessary to prevent dew condensation at least inside the heat shield 2, the face material 4 is a moisture-permeable structural plate such as a structural plywood (plywood board) or a siding board, or is non-moisture-permeable. In case of, the hole O4 for ventilation in the heat shield
It is necessary to have a size such that a space is provided with the horizontal members 6 and 60 at the upper and lower ends, but it is the air layer space that further forms a hole O4 for ventilation or a mounting gap in the moisture-permeable surface member 4. S
1 is particularly preferable because it allows air to flow between the outer surface of the face material 1 and the outer surface of the face material 4.

Further, the radiant heat reflection layer Re blocks the radiant heat load on the heat insulating material 3, and the outside air conducts through the air layer space S1, so that the lower surface sheet 22 covering the surface of the heat insulating material 3 is provided. It is indispensable to exist, and if it exists in the sheets 22 and 23 that define the lower surface of the air layer space S1, the radiant heat is supplied to the air flow A1 (FIG. 2) for each air layer space S1.
It is effective because it can be eliminated by the above. If the radiant heat reflection layer Re is applied to all of the plurality of sheets of the heat shield material 2, the sheet having the reduced radiant heat reflection function can be complemented by another sheet, and the air layer space S
It is also possible to suppress the temperature of the air inside 1 from increasing, and it becomes more effective to prevent radiant heat from heating the heat insulating material 3 and reduce the heat load. Further, in order to cover substantially the entire surface of the heat insulating material with the radiant heat reflective layer Re, the lower surface sheet 22 provided with the radiant heat reflective layer Re of the heat shield 2 is made longer than the other sheets 21 and 23 to perform heat insulation. Material 3
It should be equal length. Further, even if the surface of the heat insulating material 3 is slightly exposed, it is equivalent to substantially the entire surface coating as long as it is negligible in terms of the radiation heat reflection function.

Therefore, in the heat insulating panel 1 of the present invention, at both ends of the air layer space S1 in the extended portion L3 of the heat insulating material 3, the heat insulating material 2 has already been in air communication with the outside through the space Os.
Each of the sheets 21, 22, and 23 is non-breathable and non-moisture permeable, and even if the face material 4 is fitted and fixed in the wall space Ws as shown in FIG. , The air layer space S1 and the ventilation layer S0 can absorb and release moisture, prevent dew condensation in the heat shield 2, and insulate the air in the air layer space S1 with the radiant heat blocking function of the lower sheet 22. Material 3
Prevents high temperature heat storage.

Further, if the face material 4 is provided with the hole O4 or there is a gap between the face material 4 and the upper and lower horizontal members 6, 60,
The airflow A1 from the air layer space S1 in the heat shield 2 to the outer ventilation layer S0 is guaranteed, and if the heat insulating panel 1 of the present invention is arranged in the wall space Ws as shown in FIG. 2 is heat insulating material 3
The heating of the air in the heat shield 2 is suppressed by the air flow A1 in the air layer space S1.

Therefore, the outer wall structure obtained is a heat insulating structure that copes with all three elements of heat transfer, that is, three elements of conduction, convection, and radiation, in combination with suppression of conduction heat transfer of the heat insulating material 3. It has an epoch-making high-performance adiabatic structure with low heat storage and 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, and the outer wall thickness is not increased due to the use of the heat shield 2, and the appearance is reduced. Excellent high heat insulation, high performance heat insulating outer wall with low heat storage is strong,
And can be constructed reasonably.

The heat shield 2 is composed of a plurality of upper and lower sheets 2.
1, 22, and 23 are connected by a group of foldable upright pieces 24 and 25, so that the heat shield 2 before the heat insulating panel 1 is manufactured includes the sheets 21 and 2 in which the upright pieces 24 and 25 are laid down.
By handling as a laminated form of No. 2 and 23, storage and transportation are facilitated, and the heat insulating material 2 can be handled as a laminated form even after forming the heat insulating panel, and as a structural material having the protruding edges 4E and 4E '. Due to the presence of the face material 4, damage to the heat insulating material 3 and the heat insulating material 2 can be suppressed, and storage and transportation are easy.

Further, the heat insulating material 2 is used for each of the sheets 21, 22, 2
Since it can be handled as a laminated state of 3, the pressing operation of the heat shield 2 when the adhesive of the face material 4, the heat shield 2 and the heat insulating material 3 is applied to the heat shield 2 is possible, and the layering work is easy. Therefore, it is easy to form an integrated layer with the heat shield 2 by foaming the heat insulator using a mold (not shown).

Further, in the heat insulating panel 1, the face material 4 is moisture permeable, and the heat shield material 2 is provided on both ends of the sheets 21 and 23 which define the upper surface of the air layer space S1, as shown in FIG. It is preferable to provide the air holes O2 (claim 12). In this heat insulating panel 1, as shown in FIG. 7, when the heat shield 2 is provided with upper and lower two air layer spaces S1, the upper sheet 21 and the intermediate sheet 2 that define the upper surface of the air layer space S1.
The air holes O2 are formed at both ends of the sheet 3, so that the sheets 21 and 23 can be vertically penetrated at both ends of the air layer space S1. Therefore, the heat shield 2 is layered on the heat insulator 3 with the extension L3 shortened, so that the heat insulator 3
The coating of the radiant heat reflective layer Re on substantially the entire surface of 3 is facilitated, and the work of attaching the auxiliary lower surface sheet 22 ′ (FIG. 2) onto the heat insulating material 3 becomes unnecessary.

Since the face material is moisture permeable, even if the heat shield sheets 21, 22 and 23 are not moisture permeable, the dew condensation in the heat insulating panel 1 is generated in an area with mild weather conditions. Can be stopped. Of course, if the holes O4 for air flow are arranged at both ends of the face material 4, when the heat insulating panel 1 is mounted in the wall space Ws, the ventilation layer on the outer surface side of the heat insulating panel 1, that is, on the outer side of the face material 4 is provided. S0 and the air layer space S1 in the heat shield 2 are in air communication with each other through the air holes O2 and the holes O4, and an air flow A1 diverted from the air flow A0 flowing through the ventilation layer S0 is also generated in the air layer space S1. Therefore, the air heated by the radiant heat in the heat shield 2 can be discharged to the outside.

The perforation density of the air holes O2 depends on the heat shield 2
If the air flow A1 is large at both ends, that is, at the inlet and the outlet of the air flow A1 with the outer ventilation layer S0, the air flow A1 flows from one end (lower end) to the other end (lower end) of the air layer space S1. A suitable chimney effect can be obtained by suitably flowing through the heat shield 2 to the upper end portion. Therefore, as the heat shield 2, a plurality of upper and lower sheets of equal length can be adopted, and the heat shield 2 can be easily manufactured and the heat insulator 3 can be manufactured.
It becomes easy to cover the substantially entire surface of the heat shield material.

Further, it is preferable that the face material 4 has a hole O4 on the extension L3 of the heat insulating material 3 (claim 13). In this case, when the heat insulating panel 1 is installed in the frame, the spaces Os are present on the extension portions L3 at both ends of the heat insulating material 3 as shown in FIG. Regardless of the moisture permeability of the heat shield sheet 21, 22, 23,
Vent layer S0 outside the face material 4 and air layer space S1 inside the heat shield 2
Air communication with is guaranteed. Moreover, a jig (not shown) in the form of a rod is inserted through the hole O4 of the face material 4 to extend the heat insulating material L.
Since the three surfaces can be pressed, the work of fitting the heat insulation panel 1 into the framed wall space Ws becomes easy.

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 14). In this case, the layering of the heat shield 2 and the heat insulator 3 at the time of manufacturing the heat insulating panel is performed by making the plurality of upper and lower sheets 21, 22, 23 of the heat shield 2 to have the same length. 2 is layered on the heat insulating material 3 with the extension L3 left above and below the heat insulating material 3, and then the lower surface sheet 22
If an auxiliary lower surface sheet 22 'having a narrow width (L3 width) made of the same material as the above is attached on the extension L3 of the heat insulating material 3, the radiant heat reflection layer R
The entire surface of the heat insulating material 3 can be completely covered with e.

Therefore, each sheet 21, 22 of the heat shield 2 is
When the heat shield 2 itself is manufactured, the upper sheet 21, the lower sheet 22, and the intermediate sheet 23 are formed because the sheets 23 have the same length.
Each sheet 2 and the like, and the upright pieces 24 and 25 are supplied as a continuous long piece, and each sheet 2
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.

All the sheets 21, 2 of the heat shield 2
It is preferable that 2, 22, ′, 23 and the face material 4 have moisture-permeable and waterproof properties (claim 15). Moisture permeable and waterproof property is imparted to the heat shield sheet even if the sheet is made non-moisture permeable by the radiant heat reflection layer Re by sticking aluminum foil, fine holes (pin holes) h are formed by the needling process. A large number of scattered holes may be used. Further, as the face material 4, a structural plywood such as a plywood board or a sheathing board may be selected.

Since all the sheets of the heat shield 2 and the face material 4 have moisture permeability and waterproof property, even if the heat insulator 3 absorbs moisture from the indoor side, the heat insulator 3 → lower sheet 22 → intermediate The moisture of the heat insulating material 3 can be released over the entire surface by the route of the sheet 23 → the upper sheet 21 → the surface material 4 → the ventilation layer S0, and the sheets 21, 22, 23 and the surface material 4 can self-absorb. It is also possible to prevent partial dew condensation due to the temperature difference between the surfaces of the respective constituent members. Therefore, it is possible to prevent a decrease in heat ray reflectivity due to dew condensation of the radiant heat reflection layer Re, a decrease in heat insulating function due to moisture absorption of the heat insulating material 3, and a corrosion due to moisture absorption of the surface material 4, and the surface material 4, the heat shield 2 and the heat insulating material 3 The weather resistance of 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 sheet 21 and the lower sheet 22 are affixed to each other with a mark '(claim 16). In this case, the heat insulation panel 1
Exposes the extension L3 at the upper and lower ends when the heat shield 2 is layered, but if the auxiliary lower surface sheet 22 '(FIG. 3) is attached to the extension L3, the radiant heat of the entire surface of the heat insulator 3 is exposed. Reflective layer Re
The coating with is completed.

Therefore, 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 divides 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, allowing air to flow without turbulence.

Further, it is preferable that each of the sheets 21 and 23 other than the lower surface sheet 22 of the heat shield 2 and the standing pieces 24 and 25 have air holes O2, and the face material 4 have holes O4 for air circulation. (Claim 17). In this case, since each air layer space S1 partitioned by the upright pieces 24, 25 communicates with the air hole O2 vertically and horizontally, the inside of each air layer space S1 that communicates with the ventilation layer S0 through the hole O4 of the face material 4. The air flow A1 of the heat shield 2 is leveled, and a substantially uniform air flow is generated in the heat shield 2 as a whole.
The effect of reducing the heat load on the heat insulating material 3, the discharge of water vapor by ventilation and the discharge of high temperature air can be smoothly achieved as the whole heat shield.

Further, as shown in FIG. 6, it is preferable that the heat insulating material 3 integrally fixes the studs 50 in the middle (claim 18). To integrally fix the studs 50, the heat insulating material 3 is simply adhered and fixed to both side surfaces of the stud 50 to form the wide heat insulating material 3, and the wide heat shield 2
May be layered on the surface of the heat insulating material. In this case, the width of the heat insulating panel 1 may be set between the pillars 5 and 5 according to the setting of the width dimension, and the width of the heat insulating panel 1 is a wide heat insulating panel having the studs 50 in the middle, so that the heat insulating panel 1 fits into the wall space Ws. The joint fixing work can be made more efficient. Of course, fixing the studs 50 to the frame cross members 6 and 60
The nail can be driven diagonally.

[0058]

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. The (pin holes) h are perforated in a scattered manner, and the width W1 of the upper sheet 21 and the lower sheet 22 is set to the dimension between the vertical members according to the dimension between the vertical members (the pillar 5 and the stud 50) in the applied wall space Ws, and the intermediate sheet 23. Is defined by the dimension between the standing pieces 24 and 25 + the folded curved surfaces 23 'on both sides.

As the standing pieces 24 and 25, paper sheets without aluminum foil are used, and the width thereof 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 is a roller group device (FIG. 2) in which the respective components of the aluminum foil sheet, the upper sheet 21, the intermediate sheet 23, the lower sheet 22, and the upstanding pieces 24 and 25 are all in a long sheet state. (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 and 25 of the obtained heat shield 2 are raised, as shown in FIG. 5B, the upper sheet 21 and the lower sheet 22 are firmly connected by the standing pieces 24 and 25. In the form in which the intermediate sheet 23 is connected in a spanning manner between the standing pieces 24, 25, the standing pieces 24, 25 secure a thickness T2, and the standing pieces 24, 25 are formed into the sheets 21, 2, respectively.
The air layer space S1 is vertically divided into the same length as 2, 23,
In addition, all the sheets 21, 22, 23 are provided with the fine pores h for moisture permeation and waterproof, and the intermediate sheet 23 and the lower sheet 22 are heat shields having the radiant heat reflection 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 lower surface sheet 23 of the heat shield 2 in a laminated form in which the standing pieces 24 and 25 are laid down is adhered to the form in which the upper and lower ends of the heat insulator 3 are provided with the extension portions L3. Then, the upper and lower extensions L3 of the heat insulating material 3
Above, the auxiliary lower surface sheet 22 obtained by cutting the lower surface sheet material
′ Is bonded with the radiant heat reflection layer Re facing up.

The face material 4 has a thickness of 7.5 mm,
4E to the left and right (50mm standard) from the heat insulating material 3, and 4E 'up and down
(50 to 100 mm) Prepare a structural plywood having a protruding shape, and as shown in FIG. 3, punch circular holes O4 (standard: 50 mm diameter) on the left and right at positions corresponding to the upper and lower extension portions L3 of the heat insulating material 3,
In a form having moisture permeability with the heat shield upper surface sheet 21, that is,
The adhesive is applied in a point-like scattered manner or a line-like scattered manner and adheres.

When the heat shield 2 of the obtained heat insulating panel 1 is erected, as shown in FIG. 3, the extended portions L3 at the upper and lower ends of the surface of the heat insulating material 3 are covered with the auxiliary lower surface sheet 22 ', and the extended portion is extended. L
Other than 3 is covered with the heat shield 2, the whole surface of the heat insulator 3 is covered with the radiant heat reflection layer Re of the lower surface sheet 22 and the auxiliary lower surface sheet 22 ', and the structural plywood is provided on the upper surface sheet 21 of the heat shield 2. The face material 4 is integrated, and the right and left sides of the face material 4 are heat insulating materials 3
Only the projecting edges 4E are projected from both sides, the projecting edges 4E ′ are projecting from the heat insulating material 3, and the upper and lower two layers of the air layer space S1 of the heat shield 2 are opened on the extension L3 of the heat insulating material 3, The upper and lower holes O4 of the material 4 serve as the heat insulating panel 1 in the form of being opened on the extension L3 of the heat insulating material 3.

[Insulation of outer wall (Figs. 1, 2 and 4)]
In the same manner as in Conventional Example 1 (FIG. 8), 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, an adhesive is applied to the side surface of the heat insulating material 3, and then the heat insulating panel 1 (FIG. 3) of the present invention is attached to the face material 4 as shown in FIG. 4 (B). The protruding edge 4E of the vertical member (column 5, stud 50) and the protruding edge 4E 'of the horizontal member (horizontal member 6, base member 60) surface in contact with the surface of the wall space Ws, the heat insulating material 3 Are fitted by pulling from inside the sheet (suction gripping means) and pressing with a rod from the hole O4 of the face member 4,
Is fixed to the vertical member and the horizontal member with a nail N.

Next, on the outdoor side, as shown in FIG. 2, a breathable non-woven fabric moisture-permeable and waterproof sheet (windproof layer) 9 is entirely stretched over the surface of the face material 4, and ventilation is performed from above the windproof layer 9. The furring strip 7 is nailed and fixed to each of the vertical members 5, 50, and the outer wall material 8 is mounted on the ventilation furring strip 7. Further, on the indoor side, as shown in FIG. 2, the horizontal furring strip 7 fixed between the pillars 5 and the studs 50.
0 and the moisture-proof sheet (waterproof layer) 10 through the vertical and horizontal members
And the interior surface material 80 is fixed.

In the obtained outer wall heat insulating structure, the air flow A0 entering from the air hole (not shown) of the drainer 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 is a hole O4 of the face material 4 from the windproof layer 9 of the non-woven fabric.
Through the space Os of the space D between the base material 60 and the heat shield 2
Into the air space A of the heat shield 2 as an air flow A1.
Space Os passing through 1 and having a distance D between the horizontal member 6 and the heat shield 2
To the ventilation layer S0 through the hole O4 of the face material 4 and the windbreak layer 9
Flows to. The air inside the heat shield 2 reflects the radiant heat from the outdoor side by the radiant heat reflection layer Re and causes a higher humidity than the air in the ventilation layer S0. Therefore, the air resistance of the windbreak layer 9 is overcome and the air inside the heat shield 2 is exhausted. It flows as an air flow A1 and suppresses excessive temperature rise in the heat shield 2.

Further, the radiant heat heated 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 in the heat shield 2. The heating of can be suppressed. The heating of the outer wall heat insulating material 3 from the outdoor side is completely blocked by the radiant heat heating because the extension L3 of the heat insulating material 3 exposed from the heat shield 2 is also protected by the radiant heat reflecting layer Re. Only convection heating and conduction heating. Therefore, the heat insulating material 3
Since the heating amount can be reduced as compared with the conventional outer wall heat insulating material in which the heat insulating material 2 does not exist, the heat insulating material can be made thin and the heat insulating material 3
In combination with the reduction of the amount of heating to the outside and the thickness of the heat insulating material, the heat storage from the outdoor side of the heat insulating material 3 can be remarkably reduced, and the outer wall heat insulating structure capable of following the decrease of the outside air temperature in a relatively short time. Is obtained.

The upper sheet 21, the intermediate sheet 23, and the lower sheet 22 of the heat shield 2 are both moisture-permeable and waterproof having pinholes (fine holes) h, and the face 4 is also transparent. Therefore, deterioration of the heat insulating function due to moisture absorption of the heat insulating material 3 and moisture absorption corrosion of the face material can be suppressed, and the heat shield sheets 21 and 21 can be suppressed.
It is also possible to suppress the deterioration of the reflection function of the radiant heat reflection layer Re due to the dew condensation contamination on Nos. Since the surface of the face material 4 is protected by the windbreak layer 9, the deterioration of the function of the radiant heat reflection layer Re due to the contamination of the outside air conduction can be suppressed, and the weather resistance of the heat shield 2 is improved.

Therefore, the outer wall heat insulation structure obtained by the practice of the present invention is desired because the heat insulation panel 1 has the bearing wall function of the face material 4 and the heat insulation function of the heat shield 2 and the heat insulator 3. The heat transfer to the indoor side is the heat insulating material 3 for the conduction heat transfer which is the three elements of the heat transfer while having the wall strength of
The air flow A1 of the heat shield can deal with the convective heat transfer, and the radiant heat reflection layer Re of the heat shield can deal with the radiant heat transfer. An epoch-making heat insulation structure with low heat storage.

[Others] FIG. 7 shows a modification of the invention in which the air layer space S1 can communicate with the outer surface of the top sheet 21. That is, even if each of the sheets 21, 22, and 23 of the heat shield 2 is a moisture impermeable material, as shown in FIG.
And by punching a suitable number of air holes O2 in the intermediate sheet 23,
The air in the air layer space S1 that has been radiantly heated inside the heat shield 2 passes through the face material 4 having the moisture permeability and / or the air circulation hole O4 that covers the upper surface sheet 21, and the ventilation layer outside the face material 4 S0
Can be suitably excluded.

In this case, if the air holes O2 are perforated at a high density in the upper sheet 21 and the intermediate sheet 23, particularly in the areas corresponding to the air holes O4 of the upper and lower face members 4, and the perforations in the central portion are set to 0 or less. In addition, the air circulation function in the air layer space S1 can be suitably exerted while suppressing the deterioration of the radiation heat reflection function to the minimum. Further, as shown in FIG. 7B, the standing pieces 24, 25
If the air holes O2 are also formed in the partition wall surface f, the airflows A1 in the air layer spaces S1 divided by the standing pieces 24 and 25 in the heat shield 2 and the intermediate sheet 23 are communicated with each other, and the airflow A1 is further enhanced. It can be leveled and the ventilation function of the heat shield 2 becomes smooth. Of course, the heat shield 2 is made slightly shorter than the heat insulator 3, and a slight gap (for example, about 10 mm) is formed between the upper and lower ends of the heat shield 2 and the cross members 6, 60. Corresponding to the air holes O4 of the air hole O4, and in this case, it promotes intake and exhaust of the air flow A1 in the air layer space S1, but care is taken to maintain the effect of substantially the entire surface coating on the heat insulating material 3. There is a need to.

Top sheet of heat shield 2 and intermediate sheet 23
In the case where the air holes O2 are perforated, it is preferable that the face material 4 is a moisture permeable material and that at least a part of the air holes O2 of the top sheet 21 correspond to the holes O4 of the face material 4. In this case, the heat shield 2 and the heat insulator 3 have the same length,
Since the entire surface of the heat insulating material 3 can be covered with the heat insulating material 2,
The heat shield 2 and the heat insulator 3 can be layered in the same length size, and therefore, a separate bonding work of the auxiliary lower surface sheet 22 'as in the embodiment example (FIG. 3) is unnecessary.

In the embodiment example (FIG. 2), the heat insulating material 3 is used.
A moisture-proof sheet (waterproof layer) 10 and an interior surface material 80 are stretched on the indoor side (rear surface) of the interior material through a horizontal furring material 70.
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.
The face material 4 is used for each pillar 5, and the stud 50 is fitted in the middle 3G.
If the heat insulating material 3 and the heat insulating material 2 are fixed to the face material 4 on both sides and the dimension between the columns 5 and 5 is set, two heat insulating panels are simultaneously stretched to the wall space Ws between the columns 5 and 5. Installation is possible and workability is improved. In this case, the gap 3G is the thickness of the stud plus 3 mm (1.5 mm on each side), and of course, a fitting gauge of 1.5 mm is also provided between each heat insulating material 3 and the pillar 5.

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 with the face material 4 of the present invention, which is a separate body, is formed on the upper surface of the lower sheet 22 so that the back surface of the bottom sheet 22 is closely contacted with the surface of the heat insulating material. Wood (5 pillars, 5 studs)
0) and the horizontal members (the horizontal members 6, the base member 60) may be abutted and fixed by nailing. In this case, it is convenient to use the heat insulating material 3 having a problem in the adhesiveness of the surface, The degree of freedom in selecting the heat insulating material 3 also becomes large, which is also advantageous for remodeling work.

The heat insulating panel 1 is used as the heat shield 2 as follows.
The lower sheet 22 having the radiant heat reflection layer Re is prepared in the same length as the heat insulating material 3, and the intermediate sheet 2 having the radiant heat reflection layer Re is prepared.
3 and the top sheet 21 without the radiant heat reflection layer Re are prepared with a short length by the extension portions L3 at both ends of the heat insulating material 3, and the standing pieces 24 and 25, the top sheet 21, the intermediate sheet 23, and the bottom sheet 22 are handed. Alternatively, the heat shield 2 may be manufactured by adhesively connecting the layers by work, and the heat shield 2 may be layered on the heat insulator 3. In this case, it is 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 that is difficult to process with a roller device, and fill the fiber piece as the heat insulating material 3. It is suitable when adopting the type or the filling foam type on site.

The inventors of the present invention, as a result of the model experiment,
Even when both ends of the air layer space S1 of the heat shield 2 were closed and the air convection in the air layer space S1 was blocked, the effect of reducing the heat storage on the heat insulating material 3 by the radiation heat reflection of the heat shield 2 was confirmed. Therefore, in the present invention, it is best to generate the air flow in the air layer space S1 of the heat shield 2 and the outer ventilation layer S0, but the moisture in the air layer space S1 permeates the face material 4. In such a state, the heat storage of the heat insulating material 3 can be prevented and the dew condensation of the face material 4 and the heat insulating material 2 can be prevented, and the intended purpose of the invention can be achieved.

[0079]

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
Prevents the dew condensation inside the heat insulating structure by the water vapor communication between the air layer space S1 and the outside of the face material 4, contaminates the dew condensation of the radiant heat reflection layer Re, lowers the hygroscopic function of the heat insulating material 3, and reduces the amount of the face material 4 as a structural material. In order to prevent moisture absorption and corrosion, the heating load on the heat insulating material 3 from the outdoor side can be greatly reduced as compared with the heating load on the heat insulating material in the conventional outer wall heat insulating structure while having high durability.

Accordingly, the thickness of the heat insulating material 3 can be made thin and the heating load on the heat insulating material 3 is reduced, so that the heat storage amount of the heat insulating material 3 can be greatly reduced, and the temperature of the outside air 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. Further, since the heat insulating material 3 can be made relatively thin, the thickness of the heat shielding material 2 + the heat insulating material 3 is similar to the thickness of the heat insulating material of the same material in the related art, and in the conventional widely used outer wall heat insulating structure shown in FIG. In addition, the heat shield 2 and the heat insulator 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. The invention of is an invention of extremely high practicality.

Further, both ends of the heat insulating material 3 have extension portions L3 and are layered with the heat shielding material 2, and the heat insulating panel 1 (FIG. 3) integrally layered with the structural face material 4 is heat-insulated on the outer wall. If adopted in the structure, the heat insulating panel 1 is fitted into the wall space Ws and the face member 4 is nailed and fixed to the vertical member 5 and the horizontal member 6 of the frame assembly. The layout can be reasonably implemented together with the structural face material 4, and the construction of the outer wall heat insulating structure with high heat insulation and low heat storage can be rationalized. 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 of the heat shield 2 is layered on the face material 4 to form the surface of the vertical members 5, 50. Even if it is mounted flush, the ventilation layer S outside the face material 4 from the air layer space S1 in the heat shield through the space Os on the extension L3.
The required air flow A1 can be guaranteed to 0, and high heat insulation, low heat storage, and an outer wall heat insulation structure that prevents dew condensation can be implemented rationally.

Further, as shown in FIG. 7, since the respective sheets 21, 22, 23 of the heat shield 2 are of equal length, the heat shield 2 is manufactured as a continuous elongated body and the predetermined size of each heat shield is obtained. It becomes possible to cut into two parts, and the manufacture of the heat shield 2 and the heat insulation panel 1
The production of can be rationalized. Further, air communication between the heat shield 2 and the outer surface of the heat shield 2 in the air layer space S1 is possible through the air holes O2 at the ends of the sheet that define the upper surface of the air layer space S1. Has a dew condensation preventing function even if it is a non-moisture permeable material, and due to the correspondence between the hole O4 of the face material 4 and the air hole O2, a part of the air flow A0 of the ventilation layer S0 becomes part of the air layer space S1.
The outer wall heat insulating structure having high heat insulation and low heat storage according to the present invention can be suitably implemented by circulating as an air flow A1 inside and suppressing the temperature rise in the heat shield 2. Therefore, each heat insulating panel of the present application can be easily applied not only to a new construction of a building but also to a reformed heat insulating structure of an outer wall of a building which is in service, and the invention of the present invention is an extremely highly practical invention.

[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 vertical member arrangement perspective view, (B) is a perspective view showing a state in which the heat insulating material 3, the heat shield material 2, and the face material 4 are arranged in the wall space Ws, (C) is a C- of (B) C sectional view, (D) is a DD sectional view of (B).

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.

7A and 7B are explanatory views of a heat shield used in another heat insulation panel of the present invention, FIG. 7A is an overall perspective view, and FIG. 7B is a perspective view with a top sheet 21 removed.

FIG. 8 is a modification of the heat insulation panel of the present invention, in which (A) is an overall perspective view, (B) is a cross-sectional view taken along the line BB of (A), and (C) is a cross-sectional view taken along the line C-C of (A). Is.

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: Insulation panel, 2: Heat shield, 2E: Edge,
3: heat insulating material, 4: face material (structural plywood), 4
E, 4E ': protruding edge, 5: pillar (vertical member), 6:
Horizontal material (horizontal material), 7: ventilation furring material, 8: outer wall material,
9: Windproof layer (moisture-permeable waterproof sheet), 10: Waterproof layer (moisture-proof sheet), 21: Top sheet, 22:
Lower surface sheet, 22 ': auxiliary lower surface sheet, 23: intermediate sheet, 24, 25: standing piece, 23', 24 ', 25
′: Folded surface, 50: stud (vertical material), 60: base material (horizontal material), 70: horizontal furring material, 80: interior surface material, A0, A1: air flow, D: spacing,
L3: extension part, O2: air hole, O4:
Hole, Re: radiant heat reflection layer, S0: ventilation layer, S1: air layer space, Ws: wall space

Claims (18)

[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 plurality of upper and lower sheets (21, 22, 23) including a lower sheet (22), and each sheet (21, 2,
2, 23) is provided with an air layer space (S1), and at least the lower surface sheet (22) is provided with a radiant heat reflection layer (Re), and the heat shield material (2) having a radiant heat reflection action on the sheet surface, The lower sheet (22) and the surface of the heat insulating material (3) are arranged in close contact with each other, and the face material (4) is arranged on the outdoor surface of the heat shield (2), and the face material (4) is a vertical member. (5, 50) and / or the horizontal members (6, 60) are stretched via the surface, and the outer wall member (8) is stretched on the surface of the face member (4) with the ventilation layer (S0) interposed. An outer wall heat insulating structure which enables water vapor communication between the air layer space (S1) and the air permeable layer (S0), and in which substantially the entire outside surface of the heat insulating material (3) is covered and protected by a heat shield (2). 2. The outer wall heat insulating structure according to claim 1, wherein the face material (4) is moisture-permeable and is integrally laminated with the top sheet (21) of the heat shield (2). 3. The heat shield upper sheet, wherein the face material (4) is provided with holes (O4) for ensuring air communication between the air layer space (S1) of the heat shield (2) and the ventilation layer (S0). The outer wall heat insulation structure according to claim 1 or 2, wherein the outer wall heat insulation structure is integrated with (21). 4. The heat shield (2) according to claim 1, wherein both ends of the air layer space (S1) are arranged so as to maintain a distance (D) from each horizontal member (6, 60). The outer wall insulation structure of paragraph 1. 5. 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 any one of claims 1 to 4, wherein the entire surface including the extension (L3) of the heat insulating material (3) is covered. 6. The heat insulation material (2) according to claim 1, wherein the sheets (21, 23) defining the upper surface of the air layer space (S1) have moisture permeability and waterproofness. Construction. 7. The face material (4) and the heat shield (2) are integrally layered so that both end edges of the air layer space (S1) communicate with the holes (O4) of the face material (4). Face material (4) to vertical material (5, 5
0), a windproof layer (9) is stretched on the upper surface of the face material (4), and an outer wall material (8) is stretched on the windbreak layer (9) via a ventilation furring material (7). The outer wall heat insulating structure according to any one of claims 1 to 6, which is provided. 8. 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 7, wherein (2, 23) is moisture-permeable and waterproof. 9. The outer wall heat insulating structure according to claim 1, wherein the heat insulating material (2), the heat insulating material (3) and the face material (4) are layered and integrated in advance. 10. An interior surface material (80) is stretched on a surface on the indoor side of the wall space (Ws) through a moisture-proof sheet (10), and an integrated surface material (on the outside of the wall space (Ws) ( The outer wall heat insulating structure according to any one of claims 1 to 9, wherein a heat insulating material (3) is arranged in a space between the lower sheet (22) and the moisture-proof sheet (10) of the heat shield (2) stretched by 4). . 11. At least a bottom sheet (2) comprising at least a top sheet (21) and a bottom sheet (22).
2) is composed of a plurality of upper and lower sheets (21, 22, 23) provided with a radiant heat reflection layer (Re), and each sheet (21, 2,
2 and 23), a heat shield (2) having an air layer 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 Has a face material (4), a lower surface of the lower sheet (22) has a heat insulating material (3), and the heat insulating material (3) has extension portions (L) at both ends.
3) is the edge (2) of the air layer space (S1) of the heat shield (2)
In a form protruding from E), the face material (4) has a water vapor discharge structure at least above the extension (L3), and
A heat insulating panel for an outer wall, which is layered in a form having protruding fixing edges (4E, 4E '), and covers substantially the entire surface of the heat insulating material (3) with a radiant heat reflecting layer (Re). 12. The face material (4) is moisture-permeable, and the heat shield (2) has air holes () at least at both ends of the sheets (21, 23) defining the upper surface of the air layer space (S1). O2
Insulation panel according to claim 11, comprising O2 '). 13. The face material (4) is provided with holes (O4) on the extension (L3) of the heat insulating material (3).
2 insulation panels. 14. The auxiliary lower surface sheet piece (22 ') provided with a radiant heat reflective layer (Re) is layered on the extended portion (L3) of the heat insulating material (3).
Insulation panel. 15. All sheets (21, 2) of heat shield (2)
The heat-insulating panel according to any one of claims 11 to 14, wherein the second material (22, 22 ', 23) and the surface material (4) have a moisture-permeable waterproof property. 16. 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 are used as the top sheet (21). ) And the lower sheet (22) are attached to the heat insulating panel according to any one of claims 11 to 15. 17. Sheets (21, 23) other than the bottom sheet (22) of the heat shield (2) and standing pieces (24, 25).
17. An air hole (O2) is provided in the surface material, and the face material (4) is provided with an air circulation hole (O4).
Insulation panel. 18. The heat insulation panel according to claim 11, wherein the heat insulation material (3) integrally fixes the stud (50) in the middle.