JP2012041771A - Heat insulator, construction method of heat insulator, and roof insulation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulator which can be constructed from underneath, a construction method of a heat insulator, and a roof insulation structure.SOLUTION: The heat insulator 1 used for an insulation structure of a roof 53 comprises a plate shaped heat insulation plate 11 which extends between neighboring purlins 55 and 57 of the roof 53 in an installation state and has an eaves-side end surface 11a that is formed flat alongside of a side face 55a of the eaves-side purlin 55 and a ridge-side end surface 11b that is formed flat alongside of a side face 57b of the ridge-side purlin 57, and a claw part 14 which is arranged on the eaves-side end surface 11a of the heat insulation plate 11 and hooks into the eaves-side purlin 55 in the installation state. The claw part 14 functions as a plate spring that can be compressively deformed toward the eaves-side end surface.

Description

  The present invention relates to a heat insulating material, a heat insulating material construction method, and a heat insulating structure for a roof.

  Conventionally, the heat insulation structure of the building described in the following patent document is known as a technique in such a field. In the heat insulating structure of Patent Document 1, the receiving material is fixed to the upper corner of the main building on the ridge side. The eaves side edge of the heat insulating material is fitted into a receiving portion formed on the receiving material, and the ridge side edge of the heat insulating material is cut off at an angle along the side surface of the main building and abuts against the side surface of the main building. In the heat insulating structure of Patent Document 2, the heat insulating material installed between the purlins has a parallelogram shape in cross section, and both small facets of the heat insulating material are in contact with the side surfaces of the main building. And the lower end of the heat insulating material is being fixed by the character-shaped metal fitting to the cross section attached to the main building side of the eaves side. Thus, various heat insulation structures have been conventionally proposed.

JP 2004-339701 A JP-A-8-260585

  However, in the construction of such a heat insulating material, it is desired to rationalize the construction such as improving workability and reducing processes. For example, the heat insulating materials in Patent Documents 1 and 2 are dangerous because the worker climbs over the main building and works from above the heat insulating material. Therefore, in order to rationalize the construction, it is preferable to easily allow the construction of the heat insulating material from below.

  Then, an object of this invention is to provide the heat insulating material which enables construction of the heat insulating material from the downward direction easily, the construction method of a heat insulating material, and the heat insulating structure of a roof.

  The heat insulating material of the present invention is a heat insulating material used for the heat insulating structure of the roof, and is passed between the adjacent main buildings of the roof portion in the installed state, and on the side surface of the eave side main building located on the eave side of the main building. A plate-like end surface having an eave side end surface having a flat portion formed along the ridge side end surface and a ridge side end surface having a flat portion formed so as to contact the side surface of the ridge side main building located on the ridge side of the main building. It is provided with a heat insulating plate portion and a claw portion that is provided on the eave side end surface of the heat insulating plate portion and hooks on the eave side main building in the installed state, and the claw portion is compressible and deformable toward the eave side end surface. .

  The heat insulating plate part of this heat insulating material is passed between the adjacent eave side main building and the ridge side main building, the flat part of the eaves side end surface is along the side surface of the eaves side main building, and the flat part of the ridge side end surface is the ridge side main building. It is installed so that it touches the side. Since the eaves side end face of the heat insulating plate part is provided with a claw part that is hooked to the eaves side purlin, the end part of the heat insulating material on the eave side is supported when the claw part is hooked on the eave side main house. Since the claw part can be compressed and deformed, when installing the heat insulating material, if the heat insulating material is moved upward in a state where the claw part is compressed and deformed and the eave side end surface is aligned with the side surface of the eave side main building. Good. And with the upward movement, at least part of the compression deformation of the claw part automatically returns, the key-like claw part is caught on the eaves side purlin, and the eave side of the heat insulating material becomes the eave side main house Supported. And the eaves side of a heat insulating material is supported by the eaves side main building, The ridge side of a heat insulating material will be supported by the said building side main building by leaning at least on the ridge side main building. In this way, the support structure on the eaves side and the ridge side of the heat insulating material is automatically formed by the operation of pushing up the heat insulating material from below, so that the construction from the lower side of the heat insulating material can be easily performed.

  Moreover, the heat insulating material of the present invention may include a hook-shaped member fixed to the eaves-side end surface of the heat insulating plate portion, as well as having a claw portion formed as a key-shaped tip side. Since the key-shaped member is fixed to the eaves-side end surface of the heat insulating plate portion and the claw portion at the tip of the key-shaped member is hooked on the eave side main building, the end portion of the heat insulating plate portion on the eave side can be supported.

  In this case, the base end side of the key-shaped member may be bent and extended so as to go around from the eave side end surface to the lower surface of the heat insulating plate portion. According to this configuration, since the base end side of the key-shaped member exists below the lower surface of the heat insulating plate portion, the base end side supports the eave side of the heat insulating plate portion from below. Therefore, even if the lock between the key-shaped member and the heat insulating plate is released, the support state of the eaves side of the heat insulating plate can be maintained.

  The heat insulating material construction method of the present invention is a heat insulating material construction method using the above-mentioned heat insulating material, and the heat insulating material is pushed from below between the eave side main building and the building side main building while deforming the claw portion. The heat insulating material installation process which pushes up a heat insulating material upwards to the position where a nail | claw part is caught by the eaves side main building is characterized by the above-mentioned. In this heat insulating material installation step, it is only necessary to push the heat insulating material between the eave side main building and the building side main building from below and push it upward, so that the heat insulating material can be easily constructed from below.

  Specifically, in the heat insulating material construction method of the present invention, a notch is formed on the side surface of the eaves-side main building, and in the heat insulating material installation process, the heat insulating material is moved to a position where the claw is caught in the notch. May be pushed upward. Moreover, in the construction method of the heat insulating material of this invention, it is good also as pushing up a heat insulating material upwards in the heat insulating material installation process to the position where a nail | claw part is hooked on the upper surface of an eaves side main building.

  Moreover, a heat insulating material installation process may be performed in the state in which the rafter of a roof part exists. Since the heat insulating material installation step pushes up the heat insulating material from below, it can be suitably performed even in a state where rafters are present on the purlin.

  The heat insulating structure of the roof of the present invention is a heat insulating structure of the roof using the above-described heat insulating material, and a notch portion is formed on the side surface of the eaves-side main building, and the claw portion of the heat insulating material is formed in the notch portion. It is characterized in that the eaves side of the heat insulating material is supported by the eaves side purlin by being caught.

  Moreover, the heat insulating structure of the roof of the present invention is a heat insulating structure of the roof using the above-mentioned heat insulating material, and the eaves side of the heat insulating material becomes an eave side main building by hooking the claw portion of the heat insulating material on the upper surface of the eave side main building. It is characterized by being supported.

  In these heat insulation structures, the heat insulating plate portion of the heat insulating material is passed between the eave side main building and the ridge side main building, the plane portion of the eave side end surface is along the side surface of the eave side main building, and the flat portion of the ridge side end surface is It is installed in contact with the side of the ridge side main building. Since the eaves side end face of the heat insulating plate part is provided with a claw part that is hooked to the eaves side purlin, the end part of the heat insulating material on the eave side is supported when the claw part is hooked on the eave side main house. Since the claw part can be compressed and deformed, when installing the heat insulating material, if the heat insulating material is moved upward in a state where the claw part is compressed and deformed and the eave side end surface is aligned with the side surface of the eave side main building. Good. And with the upward movement, at least part of the compression deformation of the claw part automatically returns, the key-like claw part is caught on the eaves side purlin, and the eave side of the heat insulating material becomes the eave side main house Supported. And the eaves side of a heat insulating material is supported by the eaves side main building, and the building side of a heat insulating material will be supported by the said building side main building by leaning on at least the building side main building. As described above, according to the heat insulating structure, the support structure on the eaves side and the ridge side of the heat insulating material is automatically formed by the operation of pushing up the heat insulating material from below when the heat insulating material is applied. Construction from can be easily performed.

  According to the heat insulating material, the heat insulating material construction method, and the heat insulating structure of the roof of the present invention, the heat insulating material can be easily applied from below.

It is a perspective view which shows 1st Embodiment of the heat insulating material which concerns on this invention. It is a side view of the heat insulating material of FIG. It is a front view of the heat insulating material of FIG. It is a perspective view of the roof to which the heat insulating material of FIG. 1 is applied. It is sectional drawing of the roof which shows the installation state of the heat insulating material of FIG. It is a side view which shows the heat insulating material installation process which installs the heat insulating material of FIG. It is a perspective view which shows 2nd Embodiment of the heat insulating material which concerns on this invention. It is a side view of the heat insulating material of FIG. It is a front view of the heat insulating material of FIG. It is sectional drawing of the roof which shows the installation state of the heat insulating material of FIG. It is a perspective view which shows 3rd Embodiment of the heat insulating material which concerns on this invention. It is a side view of the heat insulating material of FIG. It is a perspective view which shows 4th Embodiment of the heat insulating material which concerns on this invention. It is sectional drawing of the roof which shows the installation state of the heat insulating material of FIG. It is a perspective view which shows 5th Embodiment of the heat insulating material which concerns on this invention. It is sectional drawing of the roof which shows the installation state of the heat insulating material of FIG.

  Hereinafter, preferred embodiments of a heat insulating material, a heat insulating material construction method, and a roof heat insulating structure according to the present invention will be described in detail with reference to the drawings.

(First embodiment)
The heat insulating material 1 shown in FIGS. 1-3 is a heat insulating material applied to the heat insulation structure of the roof of a building. As shown in FIG. 4 and FIG. 5, the heat insulating material 1 is installed between the main buildings adjacent to each other on the roof 53 of the building 51, and contributes to the heat insulation of the building 51. Hereinafter, in the installation state on the roof, the main building that contacts the eaves side of the heat insulating material 1 is referred to as an eaves side main building 55, and the main building that contacts the ridge side of the heat insulating material 1 is referred to as a ridge side main building 57. Further, in the description of the heat insulating material 1, when the words “upper” and “lower” are used, they correspond to the upper and lower sides in the installed state.

  The heat insulating material 1 includes a plate-shaped heat insulating plate portion 11 made of a heat insulating material, and a key-shaped member 13 made of hard plastic (for example, made of PET resin) attached to one end face of the heat insulating plate portion 11. The heat insulating plate 11 is a plate-like heat insulating material made of, for example, foamed phenol resin, and is called “phenol foam” or the like.

  As shown in FIGS. 4 and 5, the heat insulating plate portion 11 is inclined and passed between the eaves-side main building 55 and the ridge-side main building 57 having a height difference. Further, the width of the heat insulating plate 11 measured in the extending direction of the eaves-side main building 55 is larger than the arrangement pitch of the rafters 61 of the roof 53. The heat insulating plate portion 11 includes an eaves side end surface 11 a that contacts the side surface 55 a of the eaves-side main building 55 and a ridge side end surface 11 b that contacts the side surface 57 b of the eaves side main building 57. The eaves-side end surface 11 a forms a flat surface along the ridge-side side surface 55 a of the eave-side main building 55, and the ridge-side end surface 11 b forms a flat surface along the eave-side side surface 57 b of the ridge-side main building 57. In the installed state, the eaves side end surface 11a is in close contact with the side surface 55a with the key-like member 13 interposed therebetween, and the ridge side end surface 11b is in close contact with the side surface 57b. Further, in the installed state, the eaves side end surface 11a and the ridge side end surface 11b are both vertical surfaces, and as shown in FIG. 2, the heat insulating plate portion 11 forms a parallelogram when viewed from the side.

  The key-like member 13 is attached to the eaves side end surface 11a of the heat insulating plate part 11, and extends over almost the entire width of the eaves side end surface 11a. The key-shaped member 13 is a thin plate-shaped member made of hard plastic. The key-like member 13 has a proximal end bonded to the eaves-side end surface 11a, and a hook-like (hook-like) claw portion 14 bent in an inverted U-shape toward the lower outside at the distal end side of the key-like member 13. Is provided. The tip of the claw part 14 is separated from the eaves side end surface 11a, and when the claw part 14 receives a compressive force in the direction toward the eaves side end surface 11a, the claw part is shaped so that the tip approaches the eaves side end surface 11a. 14 is elastically deformed. That is, the nail | claw part 14 functions as a leaf | plate spring which can compressively deform toward the eaves side end surface 11a.

  Further, the proximal end side of the key-shaped member 13 is bent into a substantially L shape (or a substantially V shape) so as to go from the eaves side end surface 11 a to the lower surface of the heat insulating plate portion 11. The eaves side support part 15 which supports the lower surface 11c of the heat insulation board part 11 from the downward direction is provided in the base end side. Note that the key-shaped member 13 has sufficient rigidity as compared with the weight of the heat insulating plate portion 11, and the bent shape of the bent portion is hardly deformed by the weight of the heat insulating plate portion 11.

  The key-shaped member 13 is attached so as not to protrude from the upper surface position of the heat insulating plate portion 11 when viewed from the side. Further, the eaves side support portion 15 of the key-shaped member 13 exists along the lower surface 11 c of the heat insulating plate portion 11. With this configuration, even when the heat insulating materials 1 are stacked, the key-shaped member 13 does not become an obstacle, and the heat insulating material 1 is excellent in transportation convenience.

  Next, the heat insulating structure of the roof including the heat insulating material 1 will be described with reference to FIG. A cutout portion 55s having a rectangular cross section is formed at the upper portion of the side surface 55a on the ridge side of the eaves side main building 55, and the eaves side main building 55 has an L-shaped cross section. The heat insulating plate portion 11 is inclined between the eaves-side main building 55 and the ridge-side main building 57 in a state where the eave-side end surface 11a is in contact with the side surface 55a and the ridge-side end surface 11b is in contact with the side surface 57b. Has been. The claw portion 14 is housed in the cutout portion 55s and is hooked on a horizontal surface 55t formed in the cutout portion 55s. In addition, since the ridge side main building 57 can also function as an eaves side main building in relation to the heat insulating material installed in the upper stage, the ridge side main building 57 also has the same L-shaped cross section as the eaves side main building 55.

  The eaves-side end of the heat insulating material 1 is supported by the eaves-side purlin 55 by hooking the claw portions 14 onto the horizontal surface 55t. Further, in this case, since the length of the diagonal line of the heat insulating plate portion 11 viewed from the side is longer than the distance between the eaves-side main building 55 and the ridge-side main building 57, the heat insulating material 1 centering on the end portion on the eave side. (The rotation in which the ridge side of the heat insulating material 1 falls downward) is blocked by the ridge side purlin 57. Therefore, the ridge-side end of the heat insulating material 1 is supported by the ridge-side purlin 57 in a state where the ridge-side end of the heat insulating material 1 leans against the side surface 57 b. As described above, the heat insulating material 1 supported at both ends is stably fixed between the eaves-side main building 55 and the ridge-side main building 57.

  Further, considering the case where the adhesion between the key-shaped member 13 and the eaves side end surface 11b is temporarily removed, in this case, due to the presence of the eaves-side support portion 15 of the key-shaped member 13, the support state of the heat insulating plate portion 11 on the eave side Is maintained. Therefore, even if the adhesion between the key-shaped member 13 and the eaves side end surface 11b is peeled off, the support state of the eaves side of the heat insulating plate part 11 is maintained, and the heat insulating plate part 11 is prevented from falling.

  Then, the construction method of the heat insulating material 1 mentioned above is demonstrated.

(Insulation material production process)
The heat insulating material 1 used for the said construction method is produced in a factory beforehand. Specifically, both ends of the plate-shaped heat insulating material are cut into a predetermined shape to form the eaves side end surface 11a and the ridge side end surface 11b, and the key-like member 13 is bonded to the eaves side end surface 11a. For the bonding between the eaves side end face 11a and the key-shaped member 13, for example, a hot melt adhesive or an organic adhesive is used. The heat insulating material 1 thus produced is transported to the construction site.

(Insulation material installation process)
At the construction site, as shown in FIG. 6, the heat insulating material 1 is pushed in between the eaves side purlin 55 and the ridge side purlin 57 from below. At this time, the eaves side end surface 11a is set along the side surface 55a, and the ridge side end surface 11b is set along the side surface 57b. The nail | claw part 14 is pinched by the eaves side end surface 11a and the side surface 55a, and is compressed and deformed. Further, when the heat insulating material 1 is pushed upward and the tip of the claw portion 14 reaches the position of the lower end of the cutout portion 55s, the compressive force acting on the claw portion 14 is released (or reduced). And the nail | claw part 14 returns to the original shape, is fitted in the notch part 55s, and is hooked on the horizontal surface 55t. If it does so, it will be in the state of FIG. 5 mentioned above, and, as a result, both ends will be supported and it will be stably fixed between the eaves side main building 55 and the ridge side main building 57. After installing the heat insulating material 1 in each place in the above procedure, a process of applying an airtight tape or the like is applied between the heat insulating plate portion 11 and the purlins 55 and 57, or between the heat insulating plate portions 11, and the heat insulating structure. Is completed.

  The effect by the heat insulating material 1, the construction method of the heat insulating material 1, and the heat insulating structure of the roof is as follows. As described above, the support structure on the eaves side and the ridge side of the heat insulating material 1 is automatically formed by pushing up the heat insulating material 1 from below, so that construction from below the heat insulating material 1 can be easily performed. Therefore, the construction period can be shortened. Further, since the heat insulating material 1 is fixed by a simple operation of pushing up the heat insulating material 1 from below, the heat insulating material installation step can be easily performed by one person, and the number of artificial members can be reduced.

  Moreover, since the heat insulating material 1 is inserted from the lower side in the above heat insulating material installing step, the heat insulating material 1 can be installed even when the rafter 61 is already present. Furthermore, the heat insulating material installation step can be executed even when the field ground material 63 and the roof material 65 exist. Therefore, in the construction of a new building, the heat insulating material installation process can be performed after the construction of the rafter 61, the field material 63, and the roof material 65. In this case, the work can be performed even in rainy weather. Moreover, also at the time of renovation, the heat insulating material 1 can be easily constructed by pushing the heat insulating material 1 from below in the presence of the rafter 61, the field material 63, and the roof material 65.

(Second Embodiment)
If the building is newly constructed, it is relatively easy to make the main building L-shaped in cross section, but at the time of renovation, the main building is often already rectangular in cross section. Therefore, in this embodiment, the heat insulating material applicable to the roof which has a normal main building with a rectangular cross section is demonstrated. In the present embodiment, components that are the same as or equivalent to those in the first embodiment are given the same reference numerals in the drawings, and redundant descriptions are omitted.

  A heat insulating material 101 shown in FIGS. 7 to 10 includes a key-shaped member 113 instead of the key-shaped member 13 (see FIGS. 1 to 3) in the heat insulating material 1. Similarly to the key-shaped member 13, the key-shaped member 113 is a thin plate-shaped member made of hard plastic (for example, made of PET resin). A hook-like (hook-like) claw portion 114 that is bent in an inverted U shape toward the lower outside is provided on the distal end side of the key-like member 113. The tip of the claw portion 114 is located farther from the eaves side end face 11 a than the tip of the claw portion 14. Further, the claw portion 114 is curved so that its upper end protrudes above the upper surface of the heat insulating plate portion 11. When the nail | claw part 114 receives the compression force of the direction which goes to the eaves side end surface 11a, the nail | claw part 114 elastically deforms in the shape where a front-end | tip approaches the eaves side end surface 11a. That is, the claw portion 114 functions as a leaf spring that can be compressed and deformed toward the eaves side end surface 11a.

  FIG. 10 shows a heat insulating structure of the roof to which the heat insulating material 101 is applied. As shown in the figure, in the heat insulating structure of the roof, the eaves-side main building 155 and the ridge-side main building 157 have a rectangular cross section. And the nail | claw part 114 of the heat insulating material 101 is hooked on the upper surface 155c of the eaves side main building 155. FIG. The end of the heat insulating material 101 on the eaves side is supported by the eaves side purlin 155 by the claw 114 being hooked on the upper surface 155c. In this case, since the diagonal length of the heat insulating plate 11 viewed from the side is longer than the distance between the eaves-side main building 155 and the ridge-side main building 157, the heat insulating material 101 centering on the eave-side end portion is used. Rotation (rotation such that the ridge side of the heat insulating material 101 falls downward) is prevented by the ridge side purlin 157. Therefore, the ridge-side end of the heat insulating material 101 leans against the side surface 157b, and the ridge-side end of the heat insulating material 101 is supported by the ridge-side main building 157. As described above, the heat insulating material 101 supported at both ends is stably fixed between the eaves-side main building 155 and the building-side main building 157.

  The construction method of the heat insulating material 101 is as follows. In the heat insulating material installation step, the heat insulating material 101 is pushed from below between the eave side main building 155 and the building side main building 157. At this time, the eaves side end surface 11a is set along the side surface 155a, and the ridge side end surface 11b is set along the side surface 157b. At this time, the nail | claw part 114 is pinched by the eaves side end surface 11a and the side surface 155a, and is compressively deformed. When the heat insulating material 1 is further pushed up from this state and the tip of the claw portion 114 reaches the position of the upper surface 155c of the eaves side purlin 155, the compressive force by the eaves side end surface 11a is released. And the nail | claw part 114 will return to an original shape, will be hooked on the upper surface 155c, and will be in the state of FIG. As a result, similarly to the heat insulating material 1, both ends are supported and the heat insulating material 101 is stably fixed between the eaves-side main building 155 and the ridge-side main building 157.

  According to the heat insulating material 101 of this embodiment demonstrated above, the construction method of the heat insulating material 101, and the heat insulation structure, the effect similar to 1st Embodiment can be obtained.

(Third embodiment)
In the present embodiment, components that are the same as or equivalent to those in the first embodiment are given the same reference numerals in the drawings, and redundant descriptions are omitted. A heat insulating material 201 shown in FIGS. 11 to 12 includes a key-shaped member 213 instead of the key-shaped member 13 (see FIGS. 1 to 3) in the heat insulating material 1. Like the key-shaped member 13, the key-shaped member 213 is a thin plate-shaped member made of hard plastic (for example, made of PET resin). The distal end side of the key-like member 213 is bent in an inverted U shape toward the lower outside, and the folded portions are overlapped at both ends and fastened by staples 213a. Based on this structure, the central portion that is not fastened by the staple 213a is positioned relatively far from the eaves side end surface 11a, and is configured to be hooked by the eaves side purlin 155 and function as a leaf spring. To do.

  According to this heat insulating material 201, since the same heat insulation structure can be constructed | assembled with the construction method similar to the heat insulating material 1, the effect similar to 1st Embodiment can be obtained.

(Fourth embodiment)
Like the heat insulating material 301 shown in FIG. 13, it may replace with the key-shaped member 13 and the key-shaped member 313 which abbreviate | omitted the eave-side support part 15 may be adhere | attached on the eaves-side end surface 11a. Also with such a configuration of the heat insulating material 301, the same heat insulating structure as shown in FIG. 15 can be constructed by the same construction method as that of the heat insulating material 1, and the same effect as the first embodiment can be obtained.

(Fifth embodiment)
As in the heat insulating material 401 shown in FIG. 14, a key-shaped member 413 in which the eaves-side support portion 15 is omitted may be bonded to the eave-side end surface 11 a instead of the key-shaped member 113. Also with such a configuration of the heat insulating material 401, a similar heat insulating structure as shown in FIG. 16 can be constructed by the same construction method as that of the heat insulating material 1, and the same effects as those of the first embodiment can be obtained.

  The present invention is not limited to the embodiment described above. In each of the above-described embodiments, the claw portions 14, 114, 214, 314, and 414 are provided only on the eaves side end surface 11a of the heat insulating plate part 11, but the same for hooking the ridge side end surface 11b on the ridge side main building. You may provide a nail | claw part. Further, when the claw portion 14 or 314 is provided on the ridge side end surface 11b, a cutout having a rectangular cross section may be provided on the upper portion of the side surface 57b of the ridge side purlin 57 correspondingly.

  Further, in each embodiment, the heat insulating plate portion of the present invention is configured by a heat insulating plate material made of a self-supporting material such as phenol foam, but the heat insulating material that cannot be self-supporting is filled in a self-supporting frame to form a plate shape. By doing so, you may comprise the heat insulation board part in this invention.

  DESCRIPTION OF SYMBOLS 1,101,201,301,401 ... Heat insulating material, 11 ... Heat insulation board part, 11a ... Eave side end surface, 11b ... Building side end surface, 13, 113, 213, 313, 413 ... Key-like member, 15 ... Eave side support Part (base end side of key-shaped member), 14, 114, 214 ... claw part, 51 ... building, 53 ... roof, 55 ... eave side main house, 55a ... side face of eave side main house, 55s ... notch part, 57 ... ridge side main building, 57b ... side of ridge side main building, 61 ... rafter, 155 ... eaves side main building, 155c ... upper surface of eaves side main building, 157 ... ridge side main building.

Claims (9)

A heat insulating material used for a heat insulating structure of a roof,
In the installed state, the eaves side end surface having a flat portion formed so as to be along the side surface of the eaves-side main building which is passed between the adjacent main buildings of the roof portion and located on the eave side of the main building, A plate-like heat insulating plate portion having a ridge side end surface having a flat portion formed so as to be in contact with the side surface of the ridge side main building located on the ridge side;
A claw portion provided on the eaves side end face of the heat insulating plate portion and hooked on the eaves side purlin in an installed state,
The heat insulating material, wherein the claw portion is compressible and deformable toward the eaves side end surface.   2. The heat insulating material according to claim 1, wherein the heat insulating material has a hook-like member fixed to the end surface of the eaves side of the heat insulating plate portion, and having the claw portion formed as a key-shaped front end side.   The heat insulating material according to claim 2, wherein a base end side of the key-shaped member is bent and extends so as to go around from the eave side end surface to the lower surface of the heat insulating plate portion. It is the construction method of the heat insulating material using the heat insulating material of any one of Claims 1-3,
The heat insulating material is pushed from below between the eave side purlin and the ridge side main building while deforming the claw portion, and the heat insulating material pushes the heat insulating material upward until the claw portion is caught by the eave side main building. An insulation material construction method comprising an installation process. A notch is formed on the side surface of the eaves side main building,
The said heat insulating material installation process pushes up the said heat insulating material upwards to the position where the said nail | claw part is hooked in the said notch part, The construction method of the heat insulating material of Claim 4 characterized by the above-mentioned.   The said heat insulating material installation process pushes up the said heat insulating material upwards to the position where the said nail | claw part is hooked on the upper surface of the said eaves side main building, The construction method of the heat insulating material of Claim 4 characterized by the above-mentioned.   The said heat insulating material installation process is performed in the state in which the rafter of the said roof part exists, The construction method of the heat insulating material in any one of Claims 4-6 characterized by the above-mentioned. A heat insulating structure of a roof using the heat insulating material according to any one of claims 1 to 3,
A notch is formed on the side surface of the eaves side main building,
A heat insulating structure for a roof, wherein the eaves side of the heat insulating material is supported by the eaves side main building by hooking the claw portion of the heat insulating material to the notch. A heat insulating structure of a roof using the heat insulating material according to any one of claims 1 to 3,
A heat insulating structure for a roof, wherein the eaves side of the heat insulating material is supported by the eaves side main building by hooking the claw portions of the heat insulating material on the upper surface of the eave side main building.

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