JP7088648B2 - Insulation structure and construction method of insulation structure - Google Patents

Description

The present invention relates to a heat insulating structure and a method of constructing an interior material.

Conventionally, for example, a heat insulating material to be applied to the wall surface of a building frame as shown in Patent Document 1 below is known.
When constructing such a heat insulating material, the heat insulating material is arranged on the wall surface of the skeleton, and the window frame member is arranged on the sash frame attached to the skeleton. By bringing the heat insulating material and the window frame member into contact with each other, the space between the heat insulating material and the skeleton is closed, for example, the warm air in the room is prevented from entering the space, and the wall surface of the skeleton is used. The occurrence of dew condensation is suppressed.

Japanese Patent No. 6047139

However, since the wall surface of the skeleton has irregularities, the position of the wall surface of the skeleton in the facing direction X where the wall surface and the heat insulating material face each other may vary. Since the position of the heat insulating material in the facing direction X from the wall surface of the skeleton is difficult to be determined, the size of the window frame member to be brought into contact with the heat insulating material in the facing direction X is difficult to be determined, and the dimensions of the window frame member are increased. It sometimes took time to adjust.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a heat insulating structure capable of easily and surely closing the space between the heat insulating material and the skeleton.

In order to solve the above problems, the present invention proposes the following means.
The heat insulating structure according to the present invention is a heat insulating structure including a building skeleton, a sash frame attached to the skeleton, and an interior material having a heat insulating material and arranged on the wall surface of the skeleton. It is characterized by having an airtight material that closes a gap formed between the sash frame and the interior material.

Further, the method of constructing the interior material according to the present invention is a method of constructing an interior material in which an interior material having a heat insulating material is placed on the wall surface of the building frame, and the sash frame attached to the frame and the sash frame. It is characterized in that the gap formed between the interior material and the interior material is closed by an airtight material.

According to these inventions, the gap formed between the sash frame and the interior material is closed by the airtight material. Therefore, even if it is difficult to determine the position of the interior material in the facing direction X facing the wall surface of the interior material due to unevenness on the wall surface of the skeleton, for example, between the interior material and the skeleton. Space can be closed easily and surely.

Further, the airtight material may include a first airtight portion fixed to each of the sash frame and the interior material.

In this case, since the airtight material includes the first airtight portion fixed to each of the sash frame and the interior material, the space between the interior material and the skeleton can be more reliably closed.

Further, the airtight material may include a bottom surface defined by the skeleton and a second airtight portion fixed to each of the sash frame.

In this case, since the airtight material has a bottom surface defined by the skeleton and a second airtight portion fixed to each of the sash frames, the space between the interior material and the skeleton is more reliably closed. Can be done.

Further, the airtight material may be formed of an elastic material.

In this case, since the airtight material is formed of an elastic material, the airtight material is pressed against a member located around the gap, such as an interior material or a sash frame, to be elastically deformed, thereby forming the interior material and the skeleton. The space between them can be reliably closed.

Further, the airtight material may be formed of a thin film material.

In this case, since the airtight material is formed of the thin film material, it is possible to suppress the airtight material from becoming bulky and to secure the handleability and workability of the airtight material.

Further, a window frame member arranged in the sash frame may be further provided, and the airtight material may be sandwiched between the sash frame and the window frame member.

In this case, since the airtight material is sandwiched between the sash frame and the window frame member arranged in the sash frame, the airtight material may be misaligned or a gap may be formed between the airtight material and the sash frame. Can be prevented from occurring.

According to the present invention, the space between the heat insulating material and the skeleton can be easily and surely closed.

It is a cross-sectional view which shows the 1st airtight part in the heat insulating structure which concerns on 1st Embodiment of this invention. It is a figure which shows the modification of the 1st airtight part shown in FIG. It is a vertical sectional view which shows the 2nd airtight part in the heat insulating structure which concerns on 1st Embodiment of this invention. It is a cross-sectional view which shows the 1st airtight part in the heat insulating structure which concerns on 2nd Embodiment of this invention. It is a cross-sectional view which shows the modification of the 1st airtight part shown in FIG. It is a cross-sectional view which shows the 1st airtight part in the heat insulating structure which concerns on 3rd Embodiment of this invention. Among the heat insulating structures according to the fourth embodiment of the present invention, there are (a) a cross-sectional view showing a state before construction of the interior material, and (b) a cross-sectional view showing a state after construction of the interior material. It is a figure which shows the modification of the heat insulating structure shown in FIG. 7.

(First Embodiment)
Hereinafter, the heat insulating structure 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3. The drawings used in the following description are schematic, and the length, width, thickness ratio, etc. are not always the same as the actual ones and can be changed as appropriate.

As shown in FIG. 1, the heat insulating structure 1 according to the present embodiment includes a building frame 10, a sash frame 11 attached to the frame 10, a window frame member 12 arranged on the sash frame 11, and a heat insulating material. The interior material 20 has 21 and is arranged on the wall surface 10A forming the side wall of the skeleton 10. The skeleton 10 is formed of, for example, reinforced concrete. Further, the wall surface 10A of the skeleton 10 may be covered with sprayed urethane (not shown) or the like as an existing heat insulating material.

For example, at the time of remodeling, the existing interior material 20 is fixed to the wall surface 10A of the skeleton 10 by an adhesive 40. A part of the adhesive 40 may be left on the wall surface 10A of the skeleton 10. As a result, the wall surface 10A of the skeleton 10 may have irregularities that are projected or recessed in the direction in which the wall surface 10A and the interior material 20 face each other.
In the following description, the direction in which the wall surface 10A of the skeleton 10 and the interior material 20 face each other is referred to as the facing direction X, and the direction orthogonal to the facing direction X in the cross-sectional view seen from the vertical direction Z is referred to as the orthogonal direction Y. Both the facing direction X and the orthogonal direction Y extend in the horizontal direction.

The skeleton 10 is formed with an opening 10B which has a rectangular shape when viewed from the facing direction X and opens in the facing direction X.
The sash frame 11 is attached to the opening 10B of the skeleton 10. The sash frame 11 extends over the entire circumference of the opening 10B. The sash frame 11 has a rectangular frame shape when viewed from the front. The sash frame 11 is arranged with opening / closing members such as windows and doors that allow communication between the inside (indoor) and the outside (outdoor) of the skeleton 10. The sash frame 11 is made of a metal material such as an aluminum material.

At the end of the sash frame 11 on the indoor side, a sash angle 11A projecting toward the indoor side is formed. The sash angle 11A may not be formed on the sash frame 11.
The window frame member 12 has a rectangular frame shape having the same size as the sash frame 11 when viewed from the front. In the cross-sectional view shown in FIG. 1, the window frame member 12 has a rectangular shape extending in the facing direction X. The window frame member 12 extends along the sash frame 11 over the entire circumference of the opening 10B of the skeleton 10 located above the floor surface 50A facing upward in the floor material 50. As shown in FIG. 3, the floor material 50 is arranged in a portion of the sash frame 11 that is located on the lower side and extends in the lateral direction. The floor material 50 is located above the bottom surface 10C of the skeleton 10, and is sandwiched between the opening 10B and the sash angle 11A in the vertical direction Z.

As shown in FIG. 1, the interior material 20 includes a heat insulating material 21 and a base material 22. The heat insulating material 21 and the base material 22 may be separate or integrated. The interior material 20 is arranged on the wall surface 10A of the skeleton 10. The interior material 20 is arranged with the heat insulating material 21 facing the wall surface 10A of the skeleton 10 and the base material 22 facing the room. The sizes of the front and back surfaces of the base material 22 and the heat insulating material 21 are the same as each other. The heat insulating material 21 is fixed to the wall surface 10A of the skeleton 10 by the adhesive 40. The base material 22 is fixed to the heat insulating material 21 by a fixing member such as a long screw (not shown). A plurality of interior materials 20 are arranged so as to be adjacent to each other in the orthogonal direction Y.

As the heat insulating material 21, for example, a foamed plastic heat insulating material conforming to JIS A9511, that is, a phenol resin foam, a rigid urethane foam, an isocyanurate foam, an extruded polystyrene foam, a beaded polystyrene foam, or the like is used, and these foamed plastics are used. A vacuum heat insulating material may be embedded in the system heat insulating material.
Usually, both sides of the heat insulating material 21 are made of kraft paper, glass fiber mixed paper, aluminum hydroxide paper, cold gauze, liner paper, embossed paper, composite paper, glass fiber woven fabric, glass fiber non-woven fabric, polyester non-woven fabric. , Non-woven fabric such as polypropylene non-woven fabric, non-woven fabric such as aluminum foil and polyethylene processed paper are laminated as face materials.

It is preferable that the heat insulating material 21 can be easily processed on-site with a cutter, a round saw, or the like, and from the viewpoint of adhesiveness to the airtight material 30 described later, glass fiber mixed paper, glass fiber non-woven fabric, polyester non-woven fabric. Is preferable.
Further, among the interior materials 20, at least the heat insulating material 21 has airtightness, and the moisture permeability coefficient at a thickness of 25 mm is 200 ng / (m ² · s · Pa) or less, and 100 ng / (m ² · s ·. Pa) or less is preferable, 60 ng / (m ² · s · Pa) or less is more preferable, and 50 ng / (m ² · s · Pa) or less is most preferable.
The thickness of the heat insulating material 21 is set to 15 mm or more in order to obtain sufficient heat insulating properties, 40 mm or less in order to widen the indoor space, and is preferably 20 mm or more and 30 mm or less.

Examples of the base material 22 include gypsum board, water resistant gypsum board, plywood, zinc-plated steel plate, calcium silicate board, wood wool cement board and structural panel, particle board, sheathing board, MDF, hard board, laminated fiber board, and structure. Wood-based boards such as plywood for use and rock wool sound absorbing boards are used.

The heat insulating structure 1 according to the present embodiment includes an airtight material 30 that closes the gap formed between the sash frame 11 and the interior material 20. The airtight material 30 is formed in the form of a long sheet by a non-breathable thin film material.
Further, in the present embodiment, as shown in FIGS. 1 and 3, the airtight material 30 includes a first airtight portion 31 fixed to each of the sash frame 11 and the interior material 20, a bottom surface 10C defined by the skeleton 10, and a bottom surface 10C. A second airtight portion 32 fixed to each of the sash frames 11 is provided. The first airtight portion 31 is formed along the portion of the sash frame 11 located above the floor surface 50A of the floor material 50, and the second airtight portion 32 is the floor material 50 of the sash frame 11. It is formed along a portion located below the floor surface 50A.

As shown in FIG. 1, in the first airtight portion 31, the airtight material 30 is fixed to the side surface of the heat insulating material 21 facing the orthogonal direction Y. Further, the airtight material 30 is located on the indoor side of the sash frame 11 in the facing direction and is fixed to the inner surface facing the indoor side. As a result, the airtight material 30 covers and closes the gap formed between the sash frame 11 and the heat insulating material 21. The airtight material 30 may be fixed using, for example, an adhesive, or may be formed as a double-sided tape to which the adhesive is previously attached.

In particular, the airtight material 30 used for the first airtight portion 31 is a long non-breathable sheet made of a non-breathable resin such as polyethylene, as described in Japanese Patent Application Laid-Open No. 2013-249436. It is preferable to use a long curing sheet (so-called masker tape) in which the long side end portion and the long side end portion of the long adhesive tape are integrated in advance.
In addition, when the heat insulating material 21 and the base material 22 are integrally formed in advance from before the construction on the wall surface 10A as in the heat insulating structure 1B according to the modified example shown in FIG. 2, the airtightness in the first airtight portion 31 is achieved. The material 30 may be fixed to the outer surface of the heat insulating material 21 facing the skeleton 10 side.

Further, in the present embodiment, as shown in FIG. 1, one end of the airtight material 30 in the first airtight portion 31 is sandwiched between the sash frame 11 and the window frame member 12. The window frame member 12 is arranged so as to abut on the inner surface of the sash frame 11 and the sash angle 11A, respectively. The position of one end of the airtight material 30 is fixed by the sash frame 11 and the window frame member 12.
Further, the other end of the airtight material 30 is sandwiched between the heat insulating material 21 and the window frame member 12.
The other end of the airtight material 30 may be fixed to the wall surface 10A of the skeleton 10. At this time, when the existing sprayed urethane or the like is attached to the wall surface 10A to which the airtight material 30 is fixed, it is preferable to remove the existing urethane or the like in advance.

As shown in FIG. 3, the base material 22 is not arranged on the portion of the wall surface 10A of the skeleton 10 located under the floor.
The airtight material 30 in the second airtight portion 32 is fixed to the indoor side in the facing direction X from the portion of the bottom surface 10C defined by the skeleton 10 where the heat insulating material 21 is arranged. The airtight material 30 is also fixed to the inner surface of the sash frame 11. As a result, the airtight material 30 covers and closes the gap formed between the sash frame 11 and the heat insulating material 21. In the illustrated example, the airtight material 30 is in contact with the upper end portion of the heat insulating material 21. The airtight material 30 does not have to be in contact with the heat insulating material 21. Further, as the airtight material 30 used for the second airtight portion 32, it is preferable to use a masker tape in the same manner as that used for the first airtight portion 31.

Next, the construction method of the interior material 20 according to the present embodiment will be described.
In the construction method of the interior material 20 according to the present embodiment, first, the interior material 20 is arranged on the wall surface 10A of the building frame 10. When arranging the interior material 20, the heat insulating material 21 is first arranged on the wall surface 10A of the skeleton 10, and then the base material 22 is arranged on the inner surface of the heat insulating material 21 facing the indoor side. The adhesive 40 is attached to the outer surface of the heat insulating material 21 to fix the heat insulating material 21 to the wall surface 10A of the skeleton 10. At this time, a space is formed between the wall surface 10A of the skeleton 10 and the heat insulating material 21 due to the unevenness of the wall surface 10A of the skeleton 10.
When the heat insulating material 21 and the base material 22 are integrally formed in advance before the construction on the wall surface 10A, the interior material 20 is placed on the skeleton 10 with the heat insulating material 21 facing the wall surface 10A of the skeleton 10. It is arranged on the wall surface 10A.

Then, in the present embodiment, the gap formed between the sash frame 11 attached to the skeleton 10 and the interior material 20 is closed by the airtight material 30. At this time, for example, the work is started from the portion of the floor material 50 located above the floor surface 50A. The end portion of the airtight material 30 is fixed to the inner surface of the sash frame 11 and the side surface of the heat insulating material 21 facing the orthogonal direction Y, respectively. As a result, the first airtight portion 31 is formed. Then, the first airtight portion 31 is sequentially formed along the sash frame 11 in the vertical direction Z and the orthogonal direction Y. The airtight material 30 can be fixed by using, for example, an adhesive seal or the like.

Next, after forming the first airtight portion 31 in the entire portion of the floor material 50 located above the floor surface 50A, the second airtight portion 32 is formed in the portion of the sash frame 11 located under the floor. do. That is, the other end of the airtight material 30 is fixed to the bottom surface 10C defined by the skeleton 10 and the sash frame 11. Then, the second airtight portion 32 is sequentially formed along the sash frame 11 in the orthogonal direction Y.
It is desirable that the first airtight portion 31 and the second airtight portion 32 are continuously and integrally formed. This is because the space between the heat insulating material 21 and the skeleton 10 can be reliably closed. The order of the operations described above is not limited, and the second airtight portion 32 may be formed before the first airtight portion 31.

Finally, the window frame member 12 is arranged in the sash frame 11. The window frame member 12 is arranged so as to abut on the inner surface of the sash frame 11 and the sash angle 11A, respectively. At this time, the one-sided end of the airtight material 30 is fixed by sandwiching the one-sided end of the airtight material 30 between the window frame member 12 and the sash frame 11. The end portion of the airtight material 30 may be fixed by either fixing to the sash frame 11 or sandwiching by the window frame member 12 and the sash frame 11.
Further, the other end of the airtight material 30 is fixed by sandwiching the other end of the airtight material 30 between the window frame member 12 and the heat insulating material 21.
By arranging the window frame member 12 on the sash frame 11, the end portion of the interior material 20 in the orthogonal direction Y and the window frame member 12 come into contact with each other.

Further, the airtight material 30 is arranged so as to close the interior materials 20 adjacent to each other in the orthogonal direction Y. The airtight material 30 is sandwiched between the interior materials 20 adjacent to each other in the orthogonal direction Y. As a result, it is possible to block the flow of air from the room to the space between the wall surface 10A and the heat insulating material 21 through the interior materials 20 adjacent to each other.

As described above, according to the heat insulating structure 1 according to the present embodiment, the gap formed between the sash frame 11 and the interior material 20 is closed by the airtight material 30. Therefore, even if the position of the interior material 20 in the facing direction X with respect to the wall surface 10A of the skeleton 10 is difficult to determine due to, for example, unevenness on the wall surface 10A of the skeleton 10, the interior material 20 and the skeleton 10 The space between them can be easily and surely closed.

Further, the airtight material 30 has a first airtight portion 31 fixed to each of the sash frame 11 and the interior material 20, a bottom surface 10C defined by the skeleton 10, and a second airtight portion 32 fixed to each of the sash frame 11. It is equipped with. Therefore, the space between the interior material 20 and the skeleton 10 can be more reliably closed.

Further, since the airtight material 30 is formed of a thin film material, it is possible to suppress the airtight material 30 from becoming bulky and to secure the handleability and workability of the airtight material 30.
Further, since the airtight material 30 is sandwiched between the sash frame 11 and the window frame member 12 arranged on the sash frame 11, the airtight material 30 may be misaligned, or the airtight material 30 and the sash frame 11 may be displaced. It is possible to prevent a gap from being created in the connection portion of the.

(Second Embodiment)
Next, the heat insulating structure 2 according to the second embodiment of the present invention will be described with reference to FIG. note that,
In the following description, the same configurations as those of the above-described embodiment are designated by the same reference numerals, the description thereof will be omitted, and only the differences will be described.
As shown in FIG. 4, in the heat insulating structure 2 according to the present embodiment, the wooden frame 60 is arranged between the heat insulating material 21 and the base material 22 in the interior material 20. A plurality of wooden frames 60 are arranged at intervals in the orthogonal direction Y. Of the plurality of wooden frames 60, the wooden frame 60 located on one side in the orthogonal direction Y is adjacent to the window frame member 12 in the orthogonal direction Y.

The other end of the airtight material 30 in the heat insulating structure 2 is fixed to the inner surface of the heat insulating material 21 facing the indoor side. The other end of the airtight material 30 is sandwiched between the wooden frame 60 and the inner surface of the heat insulating material 21. Thereby, the airtight material 30 can be fixed more firmly.
Further, in the present embodiment, the airtight material 30 is fixed to the inner surface of the heat insulating material 21 facing the indoor side so as to cover between the heat insulating materials 21 adjacent to each other in the orthogonal direction Y. The wooden frame 60 and the heat insulating material 21 sandwich the airtight material 30 in the facing direction X.

As a modification of the heat insulating structure 2, the airtight material 30 may be fixed to the outer surface of the heat insulating material 21 facing the skeleton 10 side as shown in the heat insulating structure 2B shown in FIG. In this case, the airtight material 30 is not arranged between the wooden frame 60 and the heat insulating material 21. Therefore, it is possible to improve the fit of the wooden frame 60 at the position adjacent to the window frame member 12.

(Third Embodiment)
Next, with reference to FIG. 6, the heat insulating structure 3 according to the third embodiment of the present invention will be described. note that,
In the following description, the same configurations as those of the above-described embodiment are designated by the same reference numerals, the description thereof will be omitted, and only the differences will be described.
As shown in FIG. 6, in the heat insulating structure 3 according to the present embodiment, a metal stud 65 is arranged between the heat insulating material 21 and the base material 22 in the interior material 20 instead of the wooden frame 60. There is.

The metal stud 65 is a frame-shaped member having a C-shaped cross section formed by bending a sheet metal or the like. A plurality of metal studs 65 are arranged at intervals in the orthogonal direction Y.
Of the plurality of metal studs 65, the metal studs 65 located on one side in the orthogonal direction Y are arranged with a gap in the orthogonal direction Y from the window frame member 12. As described above, by adopting the metal stud 65 instead of the wooden frame 60, the weight of the member arranged between the heat insulating material 21 and the base material 22 can be reduced.

(Fourth Embodiment)
Next, the heat insulating structure 4 according to the fourth embodiment of the present invention will be described with reference to FIGS. 7 and 8. In the following description, the same configurations as those in the above embodiment are designated by the same reference numerals, the description thereof will be omitted, and only the differences will be described.
As shown in FIG. 7, in the heat insulating structure 4 according to the present embodiment, the airtight material 30B is formed of an elastic material. The airtight material 30B has a predetermined thickness in the orthogonal direction Y. The thickness of the airtight material 30B is the same over the entire area of the facing direction X. The airtight material 30B is fixed to the surface of the outer surface of the window frame member 12 that comes into contact with the interior material 20. The airtight material 30B is fixed to the outer surface of the window frame member 12 by using, for example, an adhesive.

Next, the construction method of the interior material 20 according to the present embodiment will be described.
In the present embodiment, as shown in FIG. 7A, the window frame member 12 is arranged on the sash frame 11 before the interior material 20 is arranged on the wall surface 10A of the skeleton 10. At this time, the airtight material 30B fixed to the window frame member 12 faces the wall surface 10A side of the skeleton 10 in the orthogonal direction Y.
Then, as shown in FIG. 7B, the interior material 20 is arranged on the wall surface 10A of the skeleton 10. In the illustrated example, the interior material 20 is integrally formed with the heat insulating material 21 and the base material 22. The ends of the heat insulating material 21 and the base material 22 in the interior material 20 in the orthogonal direction Y abut on the airtight material 30B fixed to the window frame member 12.

Here, by pressing the interior material 20 against the airtight material 30B in the orthogonal direction Y, the airtight material 30B is slightly elastically deformed. As a result, the gap between the airtight material 30B and the interior material 20 can be completely closed.
As a modification of the heat insulating structure 4 according to the second embodiment, as in the heat insulating structure 4B shown in FIG. 8, the airtight material 30B is not fixed to the window frame member 12 and is formed on the outer surface of the interior material 20. , May be fixed to the surface in contact with the window frame member 12.

As described above, according to the heat insulating structure 4 according to the present embodiment, the airtight material 30B is formed of an elastic material. Therefore, the airtight material 30B is pressed against a member located around the gap, such as the interior material 20 and the sash frame 11, to be elastically deformed, thereby ensuring the space between the interior material 20 and the skeleton 10. Can be blocked.

Further, since the airtight material 30B formed of the elastic material is arranged on the surface of the window frame member 12 that comes into contact with the interior material 20, the interior material 20 can be reliably pressed against the airtight material 30B. The space between the skeleton 10 and the skeleton 10 can be closed.

The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the first embodiment, the airtight material 30 is provided with the first airtight portion 31 fixed to each of the sash frame 11 and the interior material 20, but the present invention is not limited to this. .. For example, instead of the first airtight portion 31, the airtight material 30 may be fixed to the wall surface 10A of the skeleton 10 and the interior material 20 respectively.

Further, in the first embodiment, the airtight material 30 is provided with a bottom surface 10C defined by the skeleton 10 and a second airtight portion 32 fixed to each of the sash frame 11. The mode is not limited to the above. For example, instead of the second airtight portion 32, the airtight material 30 may be fixed to each of the heat insulating material 21 and the sash frame 11.

Further, in the first embodiment, the airtight material 30 is formed of a thin film material, and the airtight material 30 is sandwiched between the sash frame 11 and the window frame member 12. It is not limited to such an aspect. The airtight material 30 may not be formed of the thin film material, or may not be sandwiched between the sash frame 11 and the window frame.
Further, in the second embodiment, the structure in which the airtight material 30B is formed of the elastic material is shown, but the present invention is not limited to such an embodiment. The airtight material 30B does not have to be formed of an elastic material.

In addition, it is appropriately possible to replace the constituent elements in the above-described embodiment with well-known constituent elements without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

1, 1B, 2, 2B, 3, 4, 4B Insulation structure 10 Frame 10A Wall surface 10C Bottom surface 11 Sash frame 12 Window frame member 20 Interior material 21 Insulation material 30, 30B Airtight material 31 First airtight part 32 Second airtight part

Claims (4)

The skeleton of the building and
The sash frame attached to the skeleton and
It is a heat insulating structure including an interior material in which a base material and a heat insulating material are integrally formed in advance and arranged on the wall surface of the skeleton.
A heat insulating structure comprising an airtight material that closes a gap formed between the sash frame and the interior material. The wall-like skeleton of a reinforced concrete building,
The sash frame attached to the skeleton and
A heat insulating structure having a foamed plastic-based heat insulating material and having an interior material arranged on the wall surface of the skeleton.
A space is provided between the indoor wall surface of the skeleton and the foamed plastic-based heat insulating material.
An airtight material that closes the gap formed between the sash frame and the interior material is provided.
Further provided with a window frame member arranged in the sash frame,
The airtight material is a heat insulating structure characterized in that it is sandwiched between the sash frame and the window frame member, and between the window frame member and the end portion of the foamed plastic heat insulating material . The skeleton of the building and
The sash frame attached to the skeleton and
A heat insulating structure comprising a heat insulating material and an interior material arranged on the wall surface of the skeleton.
An airtight material that closes the gap formed between the sash frame and the interior material is provided.
The airtight material has a heat insulating structure including a bottom surface defined by the skeleton and a second airtight portion fixed to each of the sash frames. A method for constructing a heat insulating structure according to any one of claims 1 to 3 .
A method for constructing a heat insulating structure, characterized in that the gap formed between the sash frame and the interior material is closed by the airtight material.

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