JP2005264645A - Execution method of exterior finishing heat insulation structure for building and airtight sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly execute an external finishing heat insulation structure having airtightness. <P>SOLUTION: In the execution method of an exterior finishing heat insulation structure in which an air tight sheet 30 is disposed at the outside of both heat insulation materials 12, 22 so as to straddle over a heat insulation panel 12 for a roof installed in the inside of a roofing member 14 of a building 1 and a heat insulation panel 22 for a wall installed in the inside of a decoration board 23 under the roofing member 14. In the roof section 10 of the building 1, a rafter 11, the heat insulation material 12 for the roof, a roof side sheet 31 of the airtight sheet 30, a roof side process in which a ventilation rafter 13, and the roof member 14 are laminated to form a hanging state of the wall side sheet 32 of the airtight sheet 30 from the roof section 10 and a wall side process in which the wall side heat insulation panel 22 is disposed in the inside of the wall side sheet section 32 in the hanging state and decoration boards 23 are arranged at the outside of the wall side sheet 32 are executed in sequence. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a construction method for constructing an external heat insulating structure of a building, and an airtight sheet used for the construction method.

  2. Description of the Related Art Conventionally, as a structure that enhances the heat insulating property of a building, an external heat insulating structure in which a heat insulating material is arranged outside a building frame represented by a pillar, a frame, or the like is widely known (for example, Patent Document 1).

  In such a structure, as a method for further improving the heat insulation performance, an airtight sheet for blocking ventilation is provided outside the heat insulating material, and the following method is mainly employed as a method for arranging the airtight sheet. It has been.

First, while arranging a heat insulating material in the location located in a roof part among the said housings, a heat insulating material is arrange | positioned in the location located in a wall part among the said housings. Next, the airtight sheet is disposed so as to straddle the roof portion and the wall portion to cover the outside of these heat insulating materials and the boundary portion of these heat insulating materials, and then disposed on the roof side of the airtight sheet. Place roofing materials such as rafters on the outside. Finally, an outer wall material is disposed outside the portion of the airtight sheet that is disposed on the wall side.
JP 2001-3472 A

  When the above method is adopted, the roofing material is disposed after the heat insulating material and the airtight sheet are disposed. Therefore, until the roofing material is disposed, the airtight sheet is externally exposed to rain or sunlight. The sheet is directly exposed to the environment, and the airtight sheet may be deteriorated during that time, and a part of the sheet may be damaged or deformed.

  Then, an object of this invention is to provide the construction method which prevents that the inconvenience arises, and the airtight sheet | seat used for the construction method.

  The invention according to claim 1 is characterized in that both of the heat insulating materials straddle the roof side heat insulating material provided inside the roof material of the building and the wall heat insulating material provided inside the wall material below the roof material. A method for constructing an outer heat insulating structure in which an airtight sheet is disposed on the outer side, wherein the airtight sheet has a substantially flat shape and is arranged on the outer surface of the roof side heat insulating material. Part, a substantially flat plate-like shape, a wall-side sheet portion disposed on the outer surface of the wall-side heat insulating material, and a shape having a bendable folding portion between these sheet portions as a whole. The roof portion is formed by stacking the roof-side heat insulating material, the roof-side sheet portion of the airtight sheet, and the roof material in order from the inside on the roof portion of the building, using a single piece made of synthetic resin. The wall side sheet part of the airtight sheet hangs from The roof-side process to be in a state, and the wall-side process in which the wall heat insulating material is disposed inside the wall-side sheet portion in the suspended state and the wall material is disposed outside the wall-side sheet portion. It is characterized by that.

  The invention according to claim 2 covers the boundary portion between the roof-side heat insulating material provided inside the roof material of the building and the wall heat insulating material provided inside the wall material below the roof material from the outside. An air-tight sheet having a substantially flat shape, a roof-side sheet portion disposed on an outer surface of the roof-side heat insulating material, and a substantially flat plate-shaped outer surface of the wall-side heat insulating material. The present invention is characterized in that the whole is integrally formed of a synthetic resin into a shape having a wall side sheet portion disposed above and a bendable folding portion interposed between these sheet portions.

Invention of Claim 3 is the airtight sheet | seat for outer-layer heat insulation structure of Claim 2,
The bent portion is formed to be thinner than the roof side sheet portion and the wall side sheet portion.

  According to a fourth aspect of the present invention, in the airtight sheet for an outer-layer heat insulating structure according to the third aspect, the bent portion has a shape in which an inner surface thereof is cut out from the inner surfaces of the two sheet portions. It is characterized by that.

  According to the present invention, since the roof-side process is used to construct the wall heat insulating material and the wall material inside and outside the wall-side sheet portion hanging from the roof portion after the roof material is constructed, The roof side sheet portion of the airtight sheet can be covered with the roof material immediately after the construction, and the wall side sheet portion hanging from the roof portion can be protected from rain or the like by the roof material. .

  Further, since the wall side sheet portion of the airtight sheet is formed to have a substantially flat plate shape, after performing the roof side step to make the wall side sheet hang down from the roof portion, The said heat insulating material for walls and a wall material can each be easily arrange | positioned inside and outside the wall side sheet | seat part which makes the flat form, respectively.

  Furthermore, since the airtight sheet has a bent portion that allows the airtight sheet to be bent, the wall side can be formed by appropriately bending the bent portion according to an angle formed by the roof portion and the wall portion. The sheet can be suspended from the roof portion.

  That is, the roof side sheet portion and the wall side sheet portion can be bent at the boundary between the roof side sheet portion and the wall side sheet portion while giving sufficient rigidity to ensure good shape retention. By forming a bent portion, the entire sheet can be installed flexibly corresponding to the structure of the building to be constructed.

  In addition, you may shape | mold the said bending part using a raw material more flexible than the said roof side sheet | seat part and the said wall side sheet | seat part.

  However, it is better to form the bent part by making it thinner than the roof side sheet part and the wall side sheet part, and the bent part uses the same material as the roof side sheet part and the wall side sheet part. Since it can be molded and there is no need to mold using different materials, it is possible to reduce the trouble of sheet molding.

  Further, if the bent portion has a shape in which the inner side surface is cut out of the sheet outside the inner side surfaces of the two sheet portions, the bent portion can be bent more smoothly. .

  An embodiment of the present invention will be described with reference to FIGS. However, the present invention is not limited to the following embodiments.

  First, the structure of the building 1 will be described with reference to FIG.

  This building 1 has an outer heat insulating structure, and the roof portion 10 has, in order from the inner side of the building (the right side in the figure), a rafter 11, a roof insulating panel 12, and an airtightness of the building. The air-tight sheet 30, the ventilation rafters 13, and the roofing material 14 for securing the above are arranged in a stacked state. Further, on the wall portion 20 located below the roof portion 10, a column 21, a wall heat insulating panel 22, an airtight sheet 30, and a decorative plate 23 are arranged in the same order from the inside.

  The heat insulating panel 12 for the roof and the heat insulating panel 22 for the wall have a structure in which the face materials 12a and 22a and the heat insulating plates 12b and 22b are bonded to each other. Further, a plywood such as a veneer plate is mainly used for the face materials 12a and 22a, and a synthetic resin having a heat insulating property such as a foaming resin is mainly used for the heat insulating plates 12b and 22b. .

  And the airtight sheet | seat 30 is arrange | positioned so that the outer side of the said heat insulation panel 12 for roofs and the heat insulation panel 22 for walls may be straddled. In other words, the boundary portion between the heat insulating panel 12 for the roof and the heat insulating panel 22 for the wall is covered with the airtight sheet 30.

  Further, a roof side airtight sheet 35 is disposed above the airtight sheet 30, and a wall side airtight sheet 36 is disposed below the airtight sheet 30. The adhesive tape 41 connects the airtight sheet 30 and the roof side airtight sheet 35 and connects the airtight sheet 30 and the wall side airtight sheet 36.

  Further, in the boundary portion between the roof portion 10 and the wall portion 20, a girder 51 is arranged at the boundary portion between the rafter 11 and the pillar 21, and formed at the boundary portion between the roof heat insulation panel 12 and the wall heat insulation panel 22. The formed gap is filled with a filler 52 having heat insulation performance such as urethane foam.

  2A and 2B, the airtight sheet 30 will be described. The airtight sheet 30 has a roof side sheet portion 31, a wall side sheet portion 32, and a bent portion 33, which are integrated. It is molded into. The roof side sheet portion 31 is formed in a flat plate shape having a thickness of T <b> 1 and is disposed on the roof portion 10. The wall side sheet | seat part 32 is similarly formed in the flat form which has the thickness of T1, and is arrange | positioned at the wall part 20. FIG. The folding part 33 is formed between the roof side sheet part 31 and the wall side sheet part 32, and bends the airtight sheet 30 by being formed thinner than the roof side sheet part 31 and the wall side sheet part 32. Making it possible.

  The thickness T1 of the roof side sheet part 31 and the wall side sheet part 32 is set so that sufficient shape retention is obtained. Specifically, when the wall-side sheet portion 32 is arranged in a state of hanging from the roof portion 10 (see FIG. 3C, details will be described later), the wall-side sheet portion 32 is wrinkled or its end portion is formed. In order to give the rigidity necessary for preventing the sheet from being rounded, it is appropriately set according to the material of the airtight sheet 30.

  The material used for the airtight sheet 30 is not particularly limited as long as it ensures the airtightness of the roof portion 10 and can be folded at the folding portion 33. Synthetic resins such as PET and EVA are used.

  The bent portion 33 has an inner side surface 33a cut into a substantially V shape toward the outside of the airtight sheet 30 rather than the inner side surfaces 31a and 32a of the roof side sheet portion 31 and the wall side sheet portion 32, and the outside thereof. The side surface 33 b has a shape protruding toward the outside of the airtight sheet 30 from the outer side surfaces 31 b and 32 b of the roof side sheet portion 31 and the wall side sheet portion 32.

  In comparison between the protruding amount of the outer side surface 33b and the cutting amount of the inner side surface 33a, the cutting amount of the inner side surface 33a is larger than the protruding amount of the outer side surface 33b. That is, the thickness T <b> 2 of the bent portion 33 formed at the thinnest portion is thinner than the thickness T <b> 1 of the roof side sheet portion 31 and the wall side sheet portion 32.

  That is, the airtight sheet 30 is formed in a flat plate shape having a thickness of T1 substantially, and the roof side sheet portion 31 disposed on the outer side surface of the roof heat insulating panel 12 and the roof heat insulating panel 22 outside. The airtight sheet 30 is formed by forming a wall-side sheet portion 32 disposed on the side surface and having a thickness T2 smaller than these sheet portions 31 and 32 between the sheet portions 31 and 32. It has a bent portion 33 that can be bent.

  As a method of constructing such a building 1, it demonstrates using Fig.3 (a)-(e).

  First, as shown in FIG. 3A, the rafter 11, the girder 51, and the column 21 are arranged in a state where the girder 51 is arranged on the column 21 and the rafter 11 is arranged on the girder 51.

  Next, as shown in FIG. 3B, the roof heat insulation panel 12 is arranged on the rafter 11 in the roof portion 10. At this time, the face material 12a of the heat insulating panel 12 for roof is brought into contact with the rafter 11, and the face material 12a and the rafter 11 are fixed using screws or the like.

  Further, as shown in FIG. 3C, in the roof portion 10, the airtight sheet 30 is arranged outside the heat insulating panel 12 for the roof, and the roof side airtight sheet 35 and the adhesive tape 41 are arranged. Specifically, the roof side airtight sheet 35 is disposed outside the roof heat insulation panel 12, the roof side sheet portion 31 of the airtight sheet 30 is disposed outside the roof heat insulation panel 12, and the wall side sheet portion 32 is disposed. The airtight sheet 30 and the roof side airtight sheet 35 are connected by the adhesive tape 41 depending on the roof portion 10. Further, the bent portion 33 is disposed at the boundary portion between the roof portion 10 and the wall portion 20, and the wall side sheet portion 32 is bent so as to hang from the roof portion 10.

  Further, as shown in FIG. 3 (d), in the roof portion 10, the ventilation rafters 13 and the roof material 14 are arranged on the outside of the roof side sheet portion 31 in order from the inside. That is, the roof side structure is assembled first.

  Then, as shown in FIG.4 (e), the wall side airtight sheet | seat 36 and the heat insulation panel 22 for walls are arrange | positioned inside the wall side sheet | seat part 32 of the airtight sheet | seat 30 hanging down from the roof part 10. FIG. At this time, the face material 22a of the wall heat insulation panel 22 and the column 21 are fixed using screws or the like. Further, a filler 52 is filled in a boundary portion between the roof heat insulating panel 12 and the column 21, and the wall side sheet portion 32 and the wall side airtight sheet 36 are connected by the adhesive tape 41.

  Finally, as shown in FIG. 1, the construction of the building 1 is completed by disposing a decorative plate 23 on the outside of the wall-side sheet portion 32.

  That is, in this embodiment, after arranging the rafter 11, the girder 51, and the column 21, first, the roof heat insulating panel 12, the roof side sheet portion 31, the ventilation rafter 13, and the roofing material 14 are attached to the roof portion 10. The wall side process of arranging the heat insulation panel 22 for the wall and the decorative board 23 on the wall part 20 after performing the roof side process of suspending the wall side sheet part 32 from the roof part 10 while arranging it on the roof part 10 is performed. Is going.

  According to such an embodiment, the heat insulating panel 22 and the decorative plate 23 are constructed on the inside and outside of the wall side sheet portion 32 that hangs down from the roof portion 10 after the roof material 14 is constructed by the roof side process. Therefore, the roof side sheet portion 31 of the airtight sheet 30 can be covered with the roof material 14 immediately after the construction, and the wall side sheet portion 32 hanging from the roof portion 10 is also covered by the roof material 14. It can be protected from rain.

  Moreover, since the wall side sheet | seat part 32 of the airtight sheet | seat 30 is shape | molded in the flat plate shape which has the thickness of T1, it can acquire fixed rigidity and the said roof side process is performed and this wall side sheet | seat part 32 is roofed. After the wall 10 is suspended from the portion 10, the wall heat insulating panel 22 is disposed inside the wall side sheet portion 32, and the wall side sheet portion 32 is fixed to the outer surface of the wall heat insulating panel 22 with the adhesive tape 41. In the meantime, it is possible to prevent the wall side sheet portion 32 from being wrinkled or curled from the front end side.

  Therefore, when the wall-side heat insulation panel 22 is disposed inside the wall-side sheet portion 32, when the wall-side sheet portion 32 is fixed to the outside of the wall-side heat insulation panel 22, work for removing the wrinkles and roundness is performed. There is no need to carry out the work, and the burden of the work amount during construction can be reduced. That is, the heat insulation panel 22 for walls and the decorative board 23 can be easily arrange | positioned at the inner side and the outer side of the roof side sheet | seat part 31, respectively.

  Furthermore, since the roof side sheet part 31 has the bending part 33 which makes this roof side sheet part 31 bendable, according to the angle which the said roof part 10 and the said wall part 20 make, this bending part The wall-side sheet portion 32 can be suspended from the roof portion 10 by appropriately bending 33.

  Further, since the inner side surface 33a of the bent portion 33 is cut out of the sheet outside of the inner side surfaces of the roof side sheet portion 31 and the wall side sheet portion 32, the bent portion 33 can be bent more smoothly. Can be done. Further, since the outer side surface 33b of the bent portion 33 protrudes from the outer side of the seat more than the outer side surfaces 31b and 32b of the roof side sheet portion 31 and the wall side sheet portion 32, the bent portion 33 is bent more smoothly. It becomes possible.

  In the following embodiments, the same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description thereof is omitted.

Other Embodiments (1) The bent portion 33 does not necessarily have a V-shaped notch shape. For example, a material having more flexibility than the roof side sheet portion 31 and the wall side sheet portion 32 is used. The airtight sheet 30 may be formed by molding. At this time, the thickness of the bent portion 33 is not necessarily set to be thinner than the thickness T1 of the roof side sheet portion 31 and the wall side sheet portion 32, and is more flexible than the roof side sheet portion 31 and the wall side sheet portion 32. It is possible to set as appropriate as long as it can have.

  However, the bent portion 33 is made of the same material as that of the roof side sheet portion 31 and the wall side sheet portion 32 when it is formed to be thinner than the roof side sheet portion 31 and the wall side sheet portion 32 with the cuts and the like. This eliminates the need for molding using different materials, so that it is possible to reduce the trouble of sheet forming.

  (2) The cut shape of the bent portion 33 does not necessarily need to be a V-shaped cut shape, and may be a U-shape, a square shape, or the like. That is, the shape is not particularly limited as long as the thickness of the bent portion 33 is thinner than the thickness T1 of the roof side sheet portion 31 and the wall side sheet portion 32.

  (3) The roof side sheet part 31, the wall side sheet part 32, and the bending part 33 of the airtight sheet 30 do not necessarily need to be integrally formed during molding. For example, the roof-side sheet portion 31 and the wall-side sheet portion 32 are separately formed, and then the roof-side sheet portion 31 and the wall-side sheet portion 32 are bonded together with an adhesive tape or the like, thereby forming an airtight sheet. 30 may be molded.

It is sectional drawing which showed the outline of the building concerning one Embodiment of this invention. (A) is a top view of the airtight sheet | seat used for the building concerning one Embodiment of this invention, (b) is sectional drawing of the airtight sheet | seat. (A)-(e) is sectional drawing which showed the method of constructing the building concerning one Embodiment of this invention.

Explanation of symbols

1 Building 10 Roof Part 12 Roof Insulation Panel (Roof Side Insulation)
14 Roofing material 20 Wall part 21 Pillar 22 Wall insulation panel (wall side insulation)
23 Toilet materials (wall materials)
30 Airtight sheet 31 Roof side sheet part 32 Wall side sheet part 33 Bending part

Claims (4)

An airtight sheet is disposed outside both the heat insulating materials so as to straddle the roof side heat insulating material provided inside the roof material of the building and the wall heat insulating material provided inside the wall material below the roof material. A method of constructing an outer heat insulating structure,
As the airtight sheet, it has a substantially flat shape, a roof side sheet portion disposed on the outer surface of the roof side heat insulating material, and a substantially flat plate shape, on the outer surface of the wall side heat insulating material. Using a wall-side sheet portion to be arranged, and a shape having a foldable folding portion between these sheet portions, the whole being integrally formed of synthetic resin,
The roof side heat insulating material, the roof side sheet portion of the airtight sheet, and the roof material are stacked in that order from the inside on the roof portion of the building, and the wall side sheet portion of the airtight sheet hangs down from the roof portion. The roof side process to be in a state;
Outer insulation, characterized in that the wall heat insulating material is arranged inside the wall-side sheet portion in the suspended state, and the wall-side step of arranging the wall material outside the wall-side sheet portion is sequentially performed. Construction method of structure. An airtight sheet for covering a boundary portion between a roof-side heat insulating material provided inside a roof material of a building and a wall heat insulating material provided inside a wall material below the roof material from the outside,
A substantially flat plate-like shape, a roof-side sheet portion disposed on the outer surface of the roof-side heat insulating material, and a wall side having a substantially flat plate-like shape and disposed on the outer surface of the wall-side heat insulating material An airtight sheet for an outer-layer heat insulating structure, which is integrally formed of a synthetic resin into a shape having a sheet part and a bendable folding part interposed between the sheet part. In the airtight sheet for an outer insulating structure according to claim 2,
The bend portion is formed thinner than the roof side sheet portion and the wall side sheet portion.   The hermetic sheet for an outer heat insulating structure according to claim 3, wherein the bent portion has a shape in which an inner surface thereof is cut out from an inner surface of the both sheet portions to an outer side of the sheet. Structural airtight sheet.

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