JP2013237999A - Heat insulation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation structure capable of suppressing dew condensation between an existing wall body and a heat insulation panel arranged on an indoor side thereof.SOLUTION: A heat insulation structure 1 is provided with a heat insulation panel 10 along an indoor-side wall surface 2a of an existing wall body 2 which sections off an outdoor space A and an indoor space B, fitting materials 13, 16 are provided to an upper and a lower end of the heat insulation panel along the width direction of the heat insulation panel respectively, and a moisture absorbing material storage part 11 housing a moisture absorbing material 12 is provided to both or one of the upper and lower ends of the heat insulation panel.

Description

  The present invention relates to a heat insulating structure using a heat insulating panel arranged along an indoor wall surface of an existing wall body.

Conventionally, as a method of improving the heat insulation of a building such as a residence, an external heat insulation method in which a heat insulating member is installed outside the wall body that partitions the outdoor space and the indoor space of the building, Filling insulation methods for constructing insulation materials are known, but these insulation methods require extensive construction.
Therefore, in recent years, in order to improve heat insulation, a heat insulation panel is disposed on the indoor side of an existing wall body that partitions an outdoor space and an indoor space of a building.
In order to fit the upper and lower ends of such a heat-insulating panel with good appearance, it is also conceivable to appropriately provide a construction material such as a peripheral edge or a baseboard. For example, in the following Patent Document 1, a hygroscopic agent is stored in a storage space inside a peripheral edge provided along a corner between a ceiling and a wall, and a ventilation hole is provided in a front wall part of the peripheral edge. A dehumidifying structure has been proposed.

Japanese Utility Model Publication No. 4-48311

By the way, when the heat insulation panel as described above is provided along the wall surface of the existing wall body, the heat insulation panel provided on the indoor side becomes a heat insulation boundary between the outdoor side and the indoor side. If high-temperature and high-humidity indoor air flows into the rear surface side (outdoor side) of the heat insulation panel, for example, in winter, it is conceivable that condensation occurs.
In order to prevent the occurrence of such dew condensation, the heat insulation panel is closely attached to the wall surface on the indoor side of the existing wall body so that no gap is formed between the heat insulation panel and the existing wall body. It is possible. However, there are cases where the wall surface on the indoor side of the existing wall body has unevenness and the like, and it is considered that it is difficult to closely adhere the heat insulation panel to the wall surface on the indoor side of the existing wall body. . In addition, it is difficult to bring the upper and lower ends of the heat insulation panel and the construction material into close contact with each other, and it is considered that a slight gap is generated between them. It is conceivable that humid room air flows into the back side of the heat insulation panel.
In the dehumidifying structure described in Patent Document 1, it is possible to dehumidify the air around the peripheral edge through the vent hole in the front wall portion of the peripheral edge. However, further improvement is desired from the viewpoint of effectively absorbing water vapor flowing into the back surface side of the heat insulation panel through the gap between the upper and lower ends of the heat insulation panel and the construction material as described above.

  The present invention has been made in view of the above situation, and an object thereof is to provide a heat insulating structure capable of suppressing the occurrence of condensation between an existing wall body and a heat insulating panel disposed on the indoor side. And

  In order to achieve the above object, the heat insulation structure according to the present invention is provided with a heat insulation panel so as to be along an indoor wall surface of an existing wall body that partitions an outdoor space and an indoor space, and the upper and lower ends of the heat insulation panel. Each of the parts is provided with an artificial material so as to be along the width direction of the heat insulating panel, and a hygroscopic material accommodating portion in which a hygroscopic material is accommodated is provided in both or one of the upper and lower ends of the heat insulating panel. .

In this invention, you may provide the said hygroscopic material accommodating part in which the said hygroscopic material was accommodated in the upper end part of the said heat insulation panel.
The hygroscopic material may be detachable with respect to the hygroscopic material accommodating portion, and the construction material may be provided with an opening / closing portion that allows the hygroscopic material to be detachable with respect to the hygroscopic material accommodating portion.

  According to the heat insulating structure according to the present invention, it is possible to suppress the occurrence of condensation between the existing wall body and the heat insulating panel disposed on the indoor side.

It is a partially broken schematic longitudinal cross-sectional view which shows typically an example of the heat insulation structure which concerns on one Embodiment of this invention. (A), (b) is a partially broken schematic longitudinal cross-sectional view which shows typically an example of the heat insulation structure which concerns on other embodiment of this invention. (A), (b) is a partially abbreviated schematic perspective view which shows typically the heat insulation structure corresponding to FIG. It is a partially-omission schematic perspective view which shows typically the modification of the heat insulation structure.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram schematically illustrating an example of a heat insulating structure according to the first embodiment.
As shown in FIG. 1, the heat insulating structure 1 according to the present embodiment is provided with a heat insulating panel 10 so as to be along the wall surface 2 a on the indoor side of the existing wall body 2 that partitions the outdoor space A and the indoor space B. It is structured.
The existing wall body 2 may be a wall body 2 composed of a general reinforced concrete structure, steel frame structure, wooden frame structure, or wooden frame structure.

The heat insulation panel 10 has a substantially rectangular flat plate shape. In this embodiment, the heat insulation panel 10 is disposed on the existing wall body 2 so that the back surface 10a of the heat insulation panel 10 is along the wall surface 2a of the existing wall body 2. An example is shown.
The heat insulation panel 10 is arranged over substantially the entire region in the left-right direction of the wall surface 2a so as to substantially cover the wall surface 2a of the existing wall body 2 with a plurality of the heat insulation panels 10 arranged side by side. The plurality of heat insulating panels 10 have substantially the same width. In addition, according to the left-right dimension of the wall surface 2a of the wall 2, the width dimension of one of the plurality of heat insulation panels 10 may be different from the width dimension of the other heat insulation panels 10, for example.

Moreover, in this embodiment, the example which arrange | positioned these heat insulation panels 10 so that the clearance gap may be provided between the upper end part and the ceiling 3, and the lower end surface 10c may be contact | abutted to the floor | bed 4. Show.
In addition, you may make it fix the heat insulation panel 10 with respect to the existing wall body 2 with fixing fasteners, such as a nail, or an adhesive agent.
Further, the heat insulation panel 10 preferably has its entire back surface 10a in close contact with the wall surface 2a. However, due to unevenness or the like generated on the wall surface 2a of the wall body 2, the space between the heat insulation panel 10 and the wall surface 2a of the wall body 2 is good. It is conceivable that a void is generated in FIG. 1, and FIG. 1 and FIG.

Moreover, the heat insulation panel 10 includes, for example, front and back face materials, a frame material provided along the four peripheral ends of each of these opposing surfaces, and a heat insulating material filled and accommodated in these four peripheral frame materials, It is good also as a structure provided with.
In addition, as a surface material and frame material of the front and back of the heat insulation panel 10, it is good also as what was formed from inorganic type materials, such as a wood type material and a gypsum board.
Moreover, as a heat insulating material of the heat insulation panel 10, you may employ | adopt various foam type | system | group (foaming type | system | group) heat insulating materials, a fiber type heat insulating material, etc., or, for example, form a core material with fibers, such as glass fiber, You may employ | adopt the vacuum heat insulating material formed by covering a core material with packaging materials, such as a metal film, and carrying out vacuum suction.

Moreover, the heat insulation structure 1 which concerns on this embodiment has provided the hygroscopic material accommodating part 11 in which the hygroscopic material 12 was accommodated in both or one of the upper-lower-end parts of the heat insulation panel 10. FIG.
In the present embodiment, the hygroscopic material accommodating portion 11 in which the hygroscopic material 12 is accommodated is provided at the upper end portion of the heat insulating panel 10.
Moreover, in this embodiment, the hygroscopic material accommodating part 11 is provided in the upper end surface of the heat insulation panel 10 so that it may open toward upper direction. In the illustrated example, an example is shown in which the hygroscopic material accommodating portion 11 is provided at a substantially central portion in the thickness direction of the heat insulating panel 10 on the upper end surface of the heat insulating panel 10 along the width direction (left-right direction) of the heat insulating panel 10. Yes.
This hygroscopic material accommodating part 11 is formed so that the hygroscopic material 12 can be accommodated.

The hygroscopic material 12 may be configured, for example, such that a granular hygroscopic agent is filled and accommodated in a bag-like or box-like container having moisture permeability. As such a granular moisture absorbent, for example, an inorganic moisture absorbent such as silica gel or zeolite, an organic moisture absorbent such as a synthetic polymer moisture absorbent, or the like may be employed. Moreover, as a hygroscopic agent, it is good also as what was made to be able to absorb moisture again by making it dry. The hygroscopic agent may be one that can absorb and release water vapor.
Further, the hygroscopic material 12 may be configured such that the particulate hygroscopic agent as described above is directly accommodated in the hygroscopic material accommodating portion 11. In this case, the upper side may be covered with a sheet having moisture permeability.
Note that the hygroscopic material accommodating portion 11 in which the hygroscopic material 12 is accommodated may be provided over substantially the entire region in the width direction of the heat insulating panel 10. In this case, the hygroscopic material 12 may be provided for each heat insulating panel 10, or the hygroscopic material 12 may be provided so as to straddle a plurality of the heat insulating panels 10. Furthermore, you may make it provide the several moisture absorption material accommodating part 11 which accommodated the moisture absorption material 12 in each along the width direction of each heat insulation panel 10 at intervals.

Moreover, the heat insulation structure 1 is provided with the construction materials 13 and 16 along the width direction of the heat insulation panel 10 in each of the upper and lower ends of the heat insulation panel 10.
The peripheral edge 13 as the upper construction material 13 has a substantially rectangular shape in a side view and a relatively long strip shape, and is arranged side by side so as to be along the corner of the heat insulating panel 10 and the ceiling 3. The plurality of heat insulating panels 10 disposed in the substantially entire region in the width direction are disposed.
Further, the peripheral edge 13 is disposed so that its back surface is in contact with the front surface 10 b of the heat insulating panel 10 and its upper end surface is in contact with the ceiling 3.

The skirting board 16 as the lower construction material 16 has a substantially rectangular shape in a side view and a relatively long strip shape, and along the corner of the heat insulating panel 10 and the floor 4, It arrange | positions over the substantially whole area of the width direction of the several heat insulation panel 10 arrange | positioned side by side.
Moreover, the base board 16 is arrange | positioned so that the back surface may contact | abut to the front surface 10b of the heat insulation panel 10, and the lower end surface may contact | abut to the floor | bed 4.

In addition, the surrounding edges 13 and the baseboards 16 as the upper and lower construction materials have a length dimension extending over substantially the entire width direction of the plurality of heat insulating panels 10 arranged side by side. It is good. Or it is good also as a structure which provided the thing made into the dimension shorter than the length dimension over the substantially whole area of the width direction of the several heat insulation panel 10 provided. Furthermore, it is good also as a structure which provided what was made into the length of the substantially same dimension as the width dimension of each heat insulation panel 10 for every heat insulation panel 10. FIG.
Further, the peripheral edge 13 and the baseboard 16 as the upper and lower construction materials are fixed to the heat insulating panel 10, the ceiling 3, the floor 4, etc. with fixing fasteners such as nails (finish nails) and screws. May be. In addition, as a fixed aspect of the surrounding edge 13 and the baseboard 16 as these upper and lower artificial materials, instead of or in addition to such a fixed aspect by a fixing stopper, an adhesive material such as an adhesive tape, an adhesive, or the like It is good also as an aspect fixed.
Further, the peripheral edges 13 and the baseboards 16 as the upper and lower artificial materials may be formed of a woody material, a synthetic resin material, or the like.

According to the heat insulation structure 1 according to the present embodiment having the above-described configuration, it is possible to suppress the occurrence of condensation between the existing wall body 2 and the heat insulation panel 10 disposed on the indoor side.
That is, the hygroscopic material accommodating portion 11 in which the hygroscopic material 12 is accommodated is provided on both or one of the upper and lower end portions of the heat insulating panel 10.
Therefore, even when there are gaps or gaps between the heat insulation panel 10 and the upper and lower construction materials 13, 16 or between the wall surface 2 a on the indoor side of the existing wall 2 and the heat insulation panel 10. The water vapor flowing through these can be absorbed by the hygroscopic material 12 provided on both or one of the upper and lower ends of the heat insulating panel 10. Thereby, generation | occurrence | production of the dew condensation in the back surface 10a side of the heat insulation panel 10 can be suppressed.
Moreover, since the construction materials 13 and 16 are provided at the upper and lower ends of the heat insulating panel 10 along the width direction of the heat insulating panel 10, the hygroscopic material 12 and the hygroscopic material accommodating portion 11 become inconspicuous, and the appearance may be impaired. Absent.

Moreover, in this embodiment, since the hygroscopic material accommodating part 11 which accommodated the hygroscopic material 12 is provided in the upper end part of the heat insulation panel 10, the water vapor | steam which flows in through the above gaps etc. is more effectively. Moisture absorption can be performed, and the occurrence of condensation on the back surface 10a side of the heat insulating panel 10 can be more effectively suppressed.
That is, in winter and the like, an upward airflow is generated on the indoor side and a downward airflow is generated on the back surface 10a side of the heat insulation panel 10, so that water vapor can easily flow from the upper end side of the heat insulation panel 10. In the present embodiment, the moisture absorbent material accommodating portion 11 that accommodates the moisture absorbent material 12 is provided at the upper end portion of the heat insulating panel 10, so that water vapor can be absorbed at the inflow source, and moisture can be efficiently absorbed. .

Next, another embodiment according to the present invention will be described with reference to the drawings.
FIG.2 and FIG.3 is a figure which shows typically an example of the heat insulation structure which concerns on 2nd Embodiment.
Note that differences from the first embodiment will be mainly described, and the same components will be denoted by the same reference numerals, and description thereof will be omitted or simplified.
The heat insulating structure 1A according to the present embodiment is mainly different from the heat insulating structure 1 according to the first embodiment in the structures of the hygroscopic material accommodating portion 11A, the hygroscopic material 12A, and the peripheral edge 13A.
The hygroscopic material accommodating portion 11A is provided over substantially the entire width direction of the heat insulating panel 10A. In the present embodiment, the hygroscopic material accommodating portion 11A has a shape opened upward and forward of the heat insulating panel 10A. Further, the hygroscopic material accommodating portion 11A has a structure in which the hygroscopic material 12A can be attached and detached. (See FIG. 2 (b) and FIG. 3 (b)).

As shown in FIG. 2, the hygroscopic material 12A is detachable from the front of the heat insulating panel 10A with respect to the hygroscopic material accommodating portion 11A.
The hygroscopic material 12A may have a configuration in which a granular hygroscopic agent is housed in a box-shaped housing body having shape retention as described above from the viewpoint of handleability during attachment and detachment. .
Further, the hygroscopic material 12A may only be detachably mounted on the hygroscopic material accommodating portion 11A, or an engaging portion that engages with the hygroscopic material accommodating portion 11A and the hygroscopic material 12A is provided, and the hygroscopic material 12A is provided. It is good also as a structure by which engagement is held. Further, each of the hygroscopic material 12A and the hygroscopic material accommodating portion 11A is provided with a hook-and-loop fastener that can be joined and peeled off so as to prevent the hygroscopic material 12A from unintentionally falling off the hygroscopic material accommodating portion 11A. It may be.

Moreover, in this embodiment, the opening / closing part 14 which makes the moisture absorption material 12A detachable with respect to the moisture absorption material accommodating part 11A is provided in the surrounding edge 13A (refer also FIG. 3).
13 A of surrounding edges are provided with the main-body part fixed to the wall body 2, and the opening-and-closing part 14 provided in the lower end side of this main-body part.
In the illustrated example, the main body portion of the peripheral edge 13 </ b> A is fixed to the construction material base 5 fixed to the wall body 2.
The thickness of the construction material base 5 is approximately the same as the thickness of the heat insulating panel 10A, and the spacer between the wall surface 2a of the wall 2 and the main body of the peripheral edge 13A, and the peripheral edge 13A. Functions as a fixed base for the main body.
In addition, instead of such an aspect in which the artificial material base 5 is provided, a spacer portion whose back surface abuts against the wall surface 2a of the wall body 2 may be provided on the main body portion itself of the peripheral edge 13A.

The opening / closing part 14 has a substantially rectangular shape in a side view and a relatively long substantially strip-like plate shape, and is provided over substantially the entire length in the longitudinal direction of the peripheral edge 13A. The opening / closing part 14 is pivotally connected to the main body part with a shaft 15 provided at the lower edge of the main body part as a rotation fulcrum, and is configured to open and close forward. In the present embodiment, the opening / closing part 14 is provided so that the axial direction of the shaft part 15 is along the longitudinal direction of the peripheral edge 13A and along the upper end of the opening / closing part 14, and the lower end side of the opening / closing part 14 is thermally insulated. It is set as the structure contacted / separated with respect to front surface 10Ab of the panel 10A.
In addition, as shown in FIGS. 2A and 3A, the open / close section 14 is in a closed state so that the back surface thereof is in contact with or close to the moisture absorbent material 12A and the front surface 10Ab of the heat insulating panel 10A. And at least covers the front side of the moisture absorbent material 12A.
Moreover, as shown in FIG.2 (b) and FIG.3 (b), the opening-and-closing part 14 opens the front opening of the hygroscopic material accommodating part 11A in an open state, and the hygroscopic material 12A with respect to the hygroscopic material accommodating part 11A. It is formed so that it can be attached and detached.
In the example shown in the figure, the main body portion of the peripheral edge 13A and the opening / closing portion 14 are rotatably connected via the shaft portion 15, but the opening / closing portion 14 is connected to the main body portion by a connecting member such as a hinge. It is good also as an aspect connected with respect to rotation freely. Further, instead of the embodiment in which the main body portion and the opening / closing portion 14 are separated from each other, the peripheral edge 13A is integrally formed from a synthetic resin material, and the hinge is formed at the boundary portion between the main body portion and the opening / closing portion 14. It is good also as an aspect which provided the bending groove used as a part.

In addition, you may make it provide the hook-and-loop fastener etc. which can be joined and peeled in each of the opening-and-closing part 14, the moisture absorption material 12A, or front surface 10Ab of 10 A of heat insulation panels.
Moreover, you may make it provide the display part for notifying the replacement | exchange time of the moisture absorbent 12A on the front side etc. of the moisture absorbent 12A. As such a display part, it is good also as a thing of the aspect which notifies the replacement | exchange time of 12 A of moisture absorption materials by the change of the color produced by moisture absorption, for example.

The heat insulating structure 1A according to the present embodiment having the above configuration also has substantially the same effect as the first embodiment.
Moreover, in this embodiment, the opening / closing part 14 which makes the moisture absorbent material 12A detachable with respect to the moisture absorbent material accommodating part 11A is provided in the artificial material (around edge) 13A. Accordingly, the moisture absorbing material 12A can be attached to and detached from the moisture absorbing material accommodating portion 11A by opening and closing the opening / closing portion 14, and the moisture absorbing material 12A can be easily replaced. In addition, as described above, when a material that can be reabsorbed by drying or the like is adopted as a hygroscopic agent for the hygroscopic material 12A, the hygroscopic material 12A can be easily reused.

Next, a modification of the heat insulating structure 1A according to the present embodiment will be described with reference to FIG.
Note that differences from the above examples will be mainly described, and the same components will be denoted by the same reference numerals, and description thereof will be omitted or briefly described.
In this modification, the hygroscopic material accommodating portion 11B that accommodates the hygroscopic material 12B is not provided over substantially the entire area in the width direction of the heat insulating panel 10B, but is provided only at the central portion in the width direction of the heat insulating panel 10B.
In addition, the heat insulating structure 1B according to the present modified example has a plurality of opening / closing parts 14A at intervals in the longitudinal direction so that the surrounding edges 13B are positioned according to the hygroscopic material accommodating parts 11B provided in the heat insulating panels 10B. The structure is provided. Further, the peripheral edge 13B has a structure in which an abutting portion that abuts against the front surface 10Bb of the heat insulating panel 10B is provided between the plurality of opening and closing portions 14A so as to extend from the main body portion.

  According to the heat insulating structure 1B according to the present modification, the peripheral edge 13B is provided with a plurality of opening / closing parts 14A, 14A at intervals along the longitudinal direction, and the contact part is provided between the opening / closing parts 14A. Therefore, for example, as in the above-described example, the adhesion between the peripheral edge 13B and the heat insulating panel 10B can be further improved as compared with the case where the opening / closing portion 14 is provided over substantially the entire length of the peripheral edge 13A. Can do. That is, since the contact portion of the peripheral edge 13B can be brought into contact with the front surface 10Bb of the upper end portion of the heat insulating panel 10B, the adhesion can be improved. Further, the contact portion of the peripheral edge 13B can be fixed to the front surface 10Bb of the heat insulating panel 10B with a fixing stopper, an adhesive, or the like, and the peripheral edge 13B can be more stably fixed.

In addition, in heat insulation structure 1A, 1B which concerns on each above-mentioned example, although the moisture absorption material 12A, 12B has shown the example which was detachable from the front side with respect to the moisture absorption material accommodating part 11A, 11B, it is limited to this aspect. Not. For example, the opening / closing parts 14 and 14A that can be opened and closed on the front side are provided on the upper ends of the surrounding edges 13A and 13B, and the moisture absorbents 12A and 12B can be attached to and detached from the moisture absorbent containing parts 11A and 11B from above. It is good also as the mode which was made.
Further, in the heat insulating structures 1A and 1B according to each of the above-described examples, the opening / closing portions 14 and 14A of the surrounding edges 13A and 13B are set to the rotation fulcrum (shaft portion 15) along the longitudinal direction of the surrounding edges 13A and 13B. ) Although an example in which it can freely rotate is shown, it is not limited to this mode. For example, the opening / closing portions 14 and 14A of the surrounding edges 13A and 13B may be rotatable around a rotation fulcrum (shaft portion 15) along the axial direction in the width direction of the surrounding edges 13A and 13B. Further, the opening / closing portions 14 and 14A of the surrounding edges 13A and 13B are not limited to the open door-like ones that are rotatable as in each of the above examples. For example, the doors 14 and 14A may be sliding doors, or the lids 14 and 14A may be detachable from the body portions of the peripheral edges 13A and 13B.
Further, the surrounding edges 13A and 13B are not fixed to the surrounding edges 13A and 13B, but the opening and closing parts 14 and 14A that allow the moisture absorbing materials 12A and 12B to be attached to and detached from the absorbent material containing portions 11A and 11B are provided. It is good also as an aspect made detachable with respect to it. Even in such a case, the hygroscopic materials 12A and 12B can be exchanged by detaching the peripheral edges 13A and 13B.

  Moreover, although each said embodiment has shown the example which provided the hygroscopic material accommodating part 11, 11A, 11B which accommodated the hygroscopic material 12, 12A, 12B only in the upper end part of the heat insulation panels 10, 10A, 10B, It is not limited to this aspect. You may make it provide the hygroscopic material accommodating part 11, 11A, 11B in which the hygroscopic material 12, 12A, 12B was accommodated in both the upper-lower end part of the heat insulation panels 10, 10A, 10B, or only a lower end part.

1, 1A, 1B Heat insulation structure 10, 10A, 10B Heat insulation panel 11, 11A, 11B Hygroscopic material accommodating part 12, 12A, 12B Hygroscopic material 13, 13A, 13B Around edge (upper construction material)
16 Skirting board (bottom crafting material)
14, 14A Opening / closing part 2 Wall body 2a Wall surface on the indoor side A Outdoor space B Indoor space

Claims (3)

  A heat insulating panel is provided so as to be along the wall surface on the indoor side of the existing wall body that partitions the outdoor space and the indoor space, and the construction material is provided along the width direction of the heat insulating panel at each of the upper and lower ends of the heat insulating panel. A heat-absorbing material containing portion containing a hygroscopic material is provided on both or one of the upper and lower ends of the heat-insulating panel. In claim 1,
A heat insulating structure characterized in that the hygroscopic material accommodating portion accommodating the hygroscopic material is provided at an upper end portion of the heat insulating panel. In claim 1 or 2,
The heat-absorbing material is characterized in that the moisture-absorbing material can be attached to and detached from the moisture-absorbing material accommodation portion, and the construction material is provided with an opening / closing portion that allows the moisture-absorbing material to be attached to and detached from the moisture-absorbing material accommodation portion. .

Images