JP5607007B2 - Heat-shielding building construction method, heat-shielding building and aluminum heat ray reflector - Google Patents

Description

  The present invention relates to a method for constructing a heat shield building, a heat shield building, and an aluminum heat ray reflective material.

  As a conventional heat insulating material for buildings, in a first example, there is a foam type heat insulating material such as glass wool or urethane board or an aluminum heat insulating material. The second example is an aluminum heat ray reflective material in which a resin-based bubble sheet and an aluminum foil are combined (Patent Document 1), which is used in a product developed and patented by the present applicant.

Japanese Patent No. 4226588

However, the first example has drawbacks in convection heat countermeasures, conduction heat countermeasures, radiant heat countermeasures, surface condensation countermeasures, and the like.
In the case of the second example, when the sheet was affixed to the outdoor side of the column and the crosspiece was nailed to the outdoor side with a nail, the following problem occurred due to the bubbles in the sheet. That is, when attaching, the sheet is attached from the lower side, and the lower edge of the upper sheet is attached to the outside of the upper edge. At this time, the overlapped portion becomes thick, which hinders the attachment of the crosspiece to the outdoor side with a nail. Further, if they are attached without being overlapped, the waterproof performance deteriorates due to the presence of a gap at the boundary.

  The present invention solves the above-mentioned problems, and is a method for constructing a heat-shielding building, heat-shielding building, and aluminum heat ray reflector that are excellent in measures against convection heat, heat conduction, radiation heat, surface condensation, and workability. The purpose is to provide.

  The present invention relates to a composite construction method for forming a heat insulating resin foam layer that is foamed and sprayed with a resin foaming liquid on site after an aluminum heat ray reflective material is attached. Thereby, since the individual defects of the heat insulating material are compensated, high performance heat insulating performance can be expected. It is applied to places where heat insulation, heat insulation, heat insulation, and electromagnetic wave reduction are required, and contributes to improving the living environment, energy saving, anti-condensation measures, and thermal environment.

  That is, the method of the first problem solving means of the present invention includes a step of attaching an aluminum heat ray reflective material to the outdoor side of a pillar / intermediate column, eaves girder, and foundation, and a ventilation trunk edge on the outdoor side of the aluminum heat ray reflective material. And a step of attaching an outer wall finishing material to the outdoor side of the ventilator rim, and an airtight tape at the boundary between the pillars, the pillars, the eaves girder, and the base section on the indoor side of the aluminum heat ray reflective material A step of foaming a hard urethane resin foamable liquid on-site in the space section, a step of attaching an inner wall base to the indoor side of the stud, and an inner wall finish on the indoor side of the inner wall base The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one or both ends. The serial Usuberi piece is positioned at the upper edge or lower edge is to attach overlapping adjacent sheets.

  According to a second problem solving means of the present invention, there is provided a step of attaching an aluminum heat ray reflective material to the back side of the shed of the ceiling base material, and a rigid urethane resin foam in the interval section of the ceiling base material on the indoor side of the aluminum heat ray reflective material Including a step of foaming and spraying the property liquid on site, and a step of attaching a ceiling finishing material to the indoor side of the ceiling base material, wherein the aluminum heat ray reflective material is a combination of an aluminum foil and a resin foam sheet, Using one having a thin edge piece that is thin and free of bubbles at one or both ends, the thin edge piece is positioned at one edge or the other edge when attaching, and adjacent sheets are attached in a stacked manner.

  According to the third problem solving method of the present invention, when the aluminum heat ray reflective material is attached to the part from the purlin to the eaves girder on the outdoor side of the rafter, the rafter of the part where the reflecting material is in contact with the rafter in the eaves girder part. A step of attaching an aluminum heat ray reflective material by cutting a portion corresponding to both side surfaces, hanging a reflective material between adjacent rafters, and attaching a lower end edge thereof to the outdoor side of the eaves girder, and the aluminum heat ray reflective material A step of attaching the ventilator rim to the outdoor side of the base plate with a space, a step of attaching a field board to the outdoor side of the ventilator rim, a step of attaching a roofing to the outdoor side of the field plate, and an outdoor side of the roofing A step of attaching a roof finishing material to the substrate, a step of applying an airtight tape to a boundary portion between a hanging portion of the reflecting material and a side surface of the rafter, and a hard urethane resin in the interval section of the rafter on the back side of the shed of the aluminum heat ray reflecting material. Departure The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one or both ends. When using and attaching, the thin edge piece is positioned on the upper edge or the lower edge, and the adjacent sheets are attached in a stacked manner.

  The building of the fourth means for solving the problems of the present invention is attached to the outdoor side of the aluminum heat ray reflective material with an interval between the aluminum heat ray reflective material attached to the outdoor side of the pillar / intermediate column, eaves girder and foundation. The outer wall finishing material attached to the outdoor side of the ventilator rim, and the indoor side of the aluminum heat ray reflective material, which is pasted to the boundary part of the column / intermediate column, eaves girder and base spacing section An airtight tape, a hard urethane resin foam layer foamed and sprayed on-site in the space section on the indoor side of the aluminum heat ray reflective material, an inner wall base attached to the indoor side of the pillar / intermediate pillar, The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one or both ends. And said The edge piece is positioned at the upper edge or lower edge is that it is mounted overlapping adjacent sheets.

  The building of the fifth problem solving means of the present invention includes an aluminum heat ray reflective material attached to the back side of the roof of the ceiling base material, and in the space section of the ceiling base material on the indoor side of the aluminum heat ray reflective material. A hard urethane resin foam layer blown and sprayed, and a ceiling finishing material attached to the indoor side of the ceiling base material, wherein the aluminum heat ray reflective material is a combination of aluminum foil and a resin foam sheet. One end or both ends have thin edge pieces that are thin and have no air bubbles, and the thin edge pieces are positioned on one edge or the other edge, and the adjacent sheets are stacked and attached.

  The building of the sixth problem solving means of the present invention is an outdoor side of a rafter stretched between a purlin and an eaves girder, a portion from the purlin to the eaves girder, and an eaves girder between adjacent rafters. A waterproof and moisture-permeable aluminum heat ray reflective material attached to the outdoor side, a ventilation trunk edge attached to the outdoor side of the aluminum heat ray reflective material with a space therebetween, and an outdoor side of the ventilation trunk edge Affixed to the boundary between the attached field plate, the roofing attached to the outdoor side of the field plate, the roof finishing material attached to the outdoor side of the roofing, and the hanging part of the reflector and the side of the rafter Air-tight tape and a hard urethane resin foam layer blown on-site in the interval section of the rafters on the rear side of the shed of the aluminum heat ray reflector, and the aluminum heat ray reflector comprises an aluminum foil and a resin. Air bubble sheet Those, which have a Usuberi piece bubbles thinned without one or both ends, the Usuberi piece is positioned at the upper edge or lower edge, is that attached by overlapping adjacent sheets.

  The aluminum heat ray reflective material of the seventh problem solving means of the present invention is a combination of an aluminum foil and a resin bubble sheet, and has thin edge pieces that are thin and free of bubbles at one or both ends.

  The present invention combines three types of heat transfer: convection heat, conduction heat, and radiant heat by combining the aluminum heat ray reflective material and foaming hard urethane resin foaming liquid on site to form a heat insulating resin foam layer. On the other hand, the performance of heat insulation, heat insulation and heat insulation was demonstrated. In addition, the aluminum heat ray reflective material with heat shielding properties, waterproof properties, and moisture permeability, and the resin foam layer composed of countless fine open cells, indoor moisture is discharged to the outside through the pores of these. Become. For this reason, dewproofness will improve.

  In addition, by blowing the resin foaming liquid on the aluminum heat ray reflective material on site, the workability is good and almost no dust is generated. In addition, the aluminum heat ray reflective material is handled as an outer heat insulating method, but since the thickness is small, problems in the support are less likely to occur. In addition, by blowing at the site, the gap is filled while foaming, and the airtight performance can be easily improved.

  In addition, an airtight tape is attached to the boundary portion of the interval section of the pillar / intermediate pillar, eaves girder, and foundation on the indoor side of the aluminum heat ray reflective material. Moreover, an airtight tape is affixed to a boundary portion between the hanging portion of the reflector and the side surface of the rafter. Therefore, when spraying the foaming resin, it is possible to prevent inconvenience of the spraying resin intruding between the surface of the column, eaves girder, base, etc. to which the reflecting material is attached due to the spraying pressure and the elasticity of the reflecting material.

  In addition, the aluminum heat ray reflective material is one in which an aluminum foil and a resin bubble sheet are combined, and one having one or both ends having a thin edge piece that is thin and free of bubbles. And when attaching, the said thin edge piece is located in an upper edge or a lower edge, and an adjacent sheet | seat is piled up and attached. At this time, the overlapped portion does not become thick and does not hinder the attachment of the crosspiece to the outdoor side with a nail.

It is a longitudinal cross-sectional view of a wall structure. It is a front view of the aluminum heat ray reflective material in a wall structure. It is a side view of the aluminum heat ray reflective material in a wall structure. It is a side view of the aluminum heat ray reflective material in a wall structure. It is a vertical side view of the aluminum heat ray reflective material in a wall structure. It is a vertical side view of the aluminum heat ray reflective material in a wall structure. It is a side view of the aluminum heat ray reflective material in a wall structure. It is a longitudinal cross-sectional view of a ceiling structure. It is a longitudinal cross-sectional view of a hut back structure.

  An embodiment of the present invention will be described below with reference to the drawings for an example of a conventional wooden construction method. The lower part of FIGS. 1 and 3 shows the wall structure 10. The aluminum heat ray reflective material 1 is attached to the outdoor side with a tucker or the like over the columns / intermediate columns 11, the eaves beam A5 (or torso A3), and the base A2. Here, a drainer 16 is attached to the lower half of the base, and the reflector 1 is suspended from the outside. As the aluminum heat ray reflective material 1, the following is used, in which an aluminum foil is attached to both surfaces of a polyethylene resin-based bubble sheet. (This also applies to the ceiling structure and shed structure described later)

  In FIGS. 1a, 1b, 1d, and 1e, aluminum foil 1d and a resin bubble sheet are combined, and an aluminum heat ray reflective material having a thin edge piece with no bubbles at one end and being thin. In the bubble sheet, a large number of circular concavo-convex portions that are recessed from one surface of a right-angled quadrilateral planar sheet and project on the other surface have a concavo-convex sheet 1a that is uniformly distributed in a staggered manner. The first flat sheet 1b is attached to one surface and the second flat sheet 1c is attached to the other surface with the uneven sheet interposed therebetween, and has an extended portion beyond the side at the laterally opposite side of the uneven sheet. A bubble sheet is formed by the uneven sheet 1a and the first flat sheet 1b. In the aluminum foil 1d, the entire surface including the extended portion of the flat sheet of the bubble sheet is sandwiched and attached to one surface and the other surface.

  In FIG. 1a, the bubble distribution state in the bubble sheets 1a and 1b is as follows. On the vertical center line parallel to the vertical side of the right-angled quadrangular planar sheet 1b, the flat sheets 1b are arranged at equal vertical pitches P1. And on the adjacent vertical center line, it is shifted by 1/2 of the vertical pitch. Further, they are arranged at a lateral pitch P2 at equal intervals on the lateral center line parallel to the lateral side of the right-angled quadrilateral planar sheet. And on the adjacent horizontal center line, it is shifted by 1/2 of the horizontal pitch.

  In FIG. 1e, the uneven sheet 1a, the first flat sheet 1b, the second flat sheet 1c, and the aluminum foil 1d are pressure-bonded, and the extended portions are pressed from one side to the other side and adhered to each other with an adhesive. The thin edge piece 1e which became thin in the direction side is formed.

  As shown in FIG. 1f, thin edge pieces may be formed at both ends. In this case, the directions are point-symmetric with respect to each other. Moreover, in the said aluminum heat ray reflective material in FIG. 1d, you may abbreviate | omit either the 2nd plane sheet 1c and the aluminum foil 1d one side and the other side.

In FIG. 1b, when attaching the said aluminum heat ray reflective material 1, a sheet | seat is attached from lower side, and an upper sheet | seat is piled up and attached to the outer side of the upper thin edge piece 1e. And the waterproof tape 3 of an aluminum foil is stuck on a boundary part. In FIG. 1c, the lower sheet is stacked on the inner side of the lower thin edge piece 1e of the upper sheet.

  Next, in FIG. 1, the ventilation trunk edge 12 which is long in the vertical direction is attached to the column on the outdoor side of the aluminum heat ray reflective material with a space left and right. The outer wall finishing material 13 is attached to the ventilator rim at the outdoor side of the ventilator rim.

  Then, on the indoor side of the aluminum heat ray reflective material 1, a resin foaming liquid is foamed and sprayed in the space between the interval section of the stud 11, between the eaves spar (or torso) and the base A 2.

That is, for example, the following raw materials and a spray foaming machine are used. (This also applies to the ceiling structure and shed structure described later)
○ Raw material: Rigid urethane Product name: Foamlite HNB-6200J,
Composition (volume ratio) polyol component 100, isocyanate component 100,
Foaming agent: HFC-245fc, JIFC-365mfc
○ Spray machine: GUSMER FF-1600
○ Manufacturer: BASF INOAC
Polyurethanes Co., Ltd. Address: 1-196 Kawamiya, Shinshiro City, Aichi Prefecture.

Here, when spraying foamed resin, if the sprayed resin penetrates between the surface of the pillar, eaves girder, base, etc. to which the reflective material is attached due to the spraying pressure and the elasticity of the reflective material 1, the foam is foamed there. Inadvertently inflating the part outward. When there is such a fear, it is good to stick an airtight tape to those boundary parts before a spraying operation. Further, the interval between the tuckers when they are stopped by the tucker (stapler needle) may be narrowed. In this case, a waterproof tape of aluminum foil may be attached around the tucker and the surrounding area.
Next, an inner wall base 14 is attached to the indoor side of the stud 11, the eaves beam A5, the trunk A3, and the base A2, and an inner wall finishing material 15 is attached to the indoor side of the inner wall base.

  As a result, the completed wall structure 10 is as follows. The aluminum heat ray reflective material 1 attached to the outdoor side of the stud 11, the ventilation trunk edge 12 attached to the outdoor side of the aluminum heat ray reflective material with a gap, and the outdoor side of the ventilation trunk edge. An outer wall finishing material 13, a resin foam layer 2 foamed and sprayed on-site in the space between the pillars 11 on the indoor side of the aluminum heat ray reflective material 1, and an inner wall base attached to the indoor side of the pillars 14 and an inner wall finishing material 15 attached to the indoor side of the inner wall base.

  In such a wall structure 10, an air layer 12 a communicated with the outside air at the top and bottom by the ventilator edge 12 is formed within the interval (about 15 mm to about 40 mm) between the outer wall finishing material 13 and the aluminum heat ray reflective material 1. Accordingly, due to the presence of this air layer (space), heat rays due to heat transmitted from the outdoor side are reflected (reflected by about 95%) by the aluminum heat ray reflective material 1. If this space does not exist, heat from the outside moves to the indoor side as heat conduction. Moreover, since the heat of the air layer escapes from the upper part by the upward airflow, the heat is not accumulated. In addition, moisture does not accumulate and the trunk edge does not rot.

  Here, only the aluminum heat ray reflective material has little effect on heat conduction and convection, and condensation occurs. The foamed resin layer alone does not reflect heat rays, so it absorbs heat and conducts. In the present invention, the respective disadvantages of the both are compensated for each other, and extremely excellent effects having the respective advantages are exhibited. In a static air layer, heat builds up due to solar heat (especially in summer), and the temperature rises, and moisture accumulates and the torso rots.

  FIG. 2 shows the ceiling structure 20. The aluminum heat ray reflective material 1 is attached to the back side of the shed of the ceiling base material 21 made of a grid-like crosspiece. The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and one having a thin edge piece that is thin and free of bubbles at one or both ends. At the time of attachment, the thin edge piece is positioned at one edge or the other edge, and adjacent sheets are overlapped and attached. Then, an aluminum foil waterproof tape is applied to the boundary. A hard urethane undiluted solution is foamed and sprayed on-site in the interval section of the ceiling base material 21 on the indoor side of the aluminum heat ray reflective material. A ceiling finishing material 22 is attached to the indoor side of the ceiling base material 21.

  The resulting ceiling structure 20 is as follows. The aluminum heat ray reflective material 1 attached to the back side of the shed of the ceiling base material 21, and the resin foam layer 2 that is foamed and sprayed on-site in the interval section of the ceiling base material 21 on the indoor side of the aluminum heat ray reflective material And a ceiling finishing material 22 attached to the indoor side of the ceiling base material.

  FIG. 3 shows the cabin back structure 30. On the outdoor side of the rafter 31 stretched between the purlin A7 and the eaves girder A5, the aluminum heat ray reflector 1 is attached to the part from the purlin A7 to the eaves girder A5. The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and one having a thin edge piece that is thin and free of bubbles at one or both ends. When attaching, the thin edge piece is positioned on the upper edge or the lower edge, and the adjacent sheets are stacked and attached. Then, an aluminum foil waterproof tape is applied to the boundary.

  At this time, in the eaves part, the part corresponding to the both sides of the rafter of the part where the reflecting material 1 is in contact with the rafter 31 is cut, and the reflecting material 1 is hung down between the adjacent rafters, and the vicinity of the lower end edge thereof is Installed on the outdoor side of the eaves girder. And the airtight tape is affixed to the boundary part of the drooping part of this reflector 1, and a rafter side surface depending on the case. At the outdoor side of the aluminum heat ray reflective material, ventilation trunk edges 32 are attached to the rafters at intervals. A field board 33 is attached to the outdoor side of the ventilator edge. A roofing 34 is attached to the outdoor side of the base plate. A roof finish 35 is attached to the outdoor side of the roofing. On the side of the shed 30 of the aluminum heat ray reflective material 1, hard urethane stock solution is foamed and sprayed on the spot from the purlin to the reflective material hanging portion of the eaves girder in the interval section of the rafter 31.

  The resulting attic structure 30 is as follows. The aluminum heat ray reflective material 1 attached to the outdoor side of the rafter 31, the ventilation trunk edge 32 attached to the outdoor side of the aluminum heat ray reflective material with a space, and the outdoor side of the ventilation trunk edge. The roof plate 35 attached to the outdoor side of the field plate 33, the outdoor side of the field plate, the roof finishing material 35 attached to the outdoor side of the roofing plate, and the rafter 31 on the roof 30 side of the aluminum heat ray reflective material 1 A resin foam layer 2 foamed and sprayed on-site is included in the interval section. A well-known ventilation building tile 36 is attached to the upper side of the building in order to release the upward airflow of the ventilation trunk edge 32 to the outside air.

  As the resin foaming liquid, in addition to the above, a resin foaming raw material used in the field of building materials having excellent heat insulation and the like is applied. For example, a polymer foam material as a heat insulating material for filling and covering, in which a known two-component urea resin is injected and fired by a pump, open cell soft foamed polyurethane (such as maltoprene), polyethylene or chloride For example, a soft vinyl foam (closed cell). Also, a rigid urethane foam using carbon dioxide generated by mixing isocyanate and water as a blowing agent (manufacturer: Nippon Aqua Co., Ltd., address: 2-25 Kitamachi, Minami-ku, Nagoya City). It can also be applied to buildings such as steel structures and RC structures.

  The present invention is not limited to the examples and embodiments described above, and includes various modifications without departing from the scope and scope of the claims.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a method for constructing a heat shield building, a heat shield building, an aluminum heat ray reflector, and various uses that require heat insulation, heat insulation, heat insulation, and electromagnetic wave reduction.

A1 foundation A2 foundation A3 torso A4 floor beam A5 eaves beam A6 hut beam A7 purlin 1 aluminum heat ray reflector 2 resin foam layer 3 waterproofing tape 10 wall 11 stud 12 ventilation trunk edge 12a ventilation layer 13 outer wall finishing material 14 inner wall foundation 15 inner wall Finishing material 16 Drainer 20 Ceiling 21 Ceiling base material 22 Ceiling finishing material 30 Hut back 31 Rafters 32 Venting rim 33 Base plate 34 Roofing 35 Roof finishing material 36 Ventilation tile

Claims (7)

Attaching an aluminum heat ray reflective material to the outdoor side of the pillar / intermediate column, eaves girder, and foundation; attaching the air vent edge to the outdoor side of the aluminum heat ray reflective material with an interval; and the outdoor side of the air vent edge Attaching the outer wall finishing material to the
A step of attaching an airtight tape to a boundary portion of the interval section of the pillar / intermediate pillar, eaves girder, and foundation on the indoor side of the aluminum heat ray reflector;
A step of foaming and spraying a hard urethane resin foamable liquid on-site in the interval section, a step of attaching an inner wall base to the indoor side of the stud, and a step of attaching an inner wall finishing material to the indoor side of the inner wall base Including
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one end or both ends. A method for constructing a heat-insulating building, characterized in that it is positioned on and attached to adjacent sheets.
Attaching an aluminum heat ray reflective material to the back of the shed of the ceiling base material;
A step of foaming and spraying a hard urethane resin foamable liquid on-site in the interval section of the ceiling base material on the indoor side of the aluminum heat ray reflective material; and a step of attaching a ceiling finishing material on the indoor side of the ceiling base material; Including
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one or both ends. When attaching, the thin edge piece is attached to one edge or the other edge. A method for constructing a heat-insulating building, characterized in that it is positioned on and attached to adjacent sheets.
When attaching the aluminum heat ray reflective material to the part from the purlin to the eaves girder on the outdoor side of the rafter, cut the part corresponding to both sides of the rafter of the part where the reflective material is in contact with the rafter in the eaves part A process of attaching an aluminum heat ray reflective material that hangs the reflective material between rafters and attaches the lower edge of the reflective material to the outdoor side of the eaves girder,
Attaching the ventilator edge to the outdoor side of the aluminum heat ray reflective material with a gap; attaching the field plate to the outdoor side of the ventilator edge; attaching the roofing to the outdoor side of the field plate; Attaching a roof finish to the outdoor side of the roofing;
A process of applying an airtight tape to a boundary portion between the hanging portion of the reflector and the rafter side surface;
In the space section of the rafters on the back side of the shed of the aluminum heat ray reflective material, and foaming and blowing a hard urethane resin foamable liquid on site,
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin and free of bubbles at one end or both ends. A method for constructing a heat-insulating building, characterized in that it is positioned on and attached to adjacent sheets.
Aluminum heat ray reflective material attached to the outdoor side of the pillar / intermediate column, eaves girder, and foundation, a ventilation trunk edge that is attached to the outdoor side of the aluminum heat ray reflective material with a gap, and an outdoor side of the ventilation trunk edge Exterior wall finishing material attached to,
An airtight tape affixed to the boundary portion of the interval section of the pillar / intermediate pillar, eaves girder, and base on the indoor side of the aluminum heat ray reflector;
A hard urethane resin foam layer foamed and sprayed on-site in the space section on the indoor side of the aluminum heat ray reflective material, an inner wall base attached to the indoor side of the pillar / intermediate pillar, and a store of the inner wall base Including an inner wall finishing material attached to the inside,
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin with no bubbles at one or both ends, and the thin edge piece is positioned at the upper edge or the lower edge. In addition, a heat-insulating building is characterized in that it is attached by overlapping adjacent sheets.
An aluminum heat ray reflective material attached to the back of the shed of the ceiling base material,
A hard urethane resin foam layer foamed and sprayed on-site in the interval section of the ceiling base material on the indoor side of the aluminum heat ray reflective material, and a ceiling finishing material attached to the indoor side of the ceiling base material Including
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin with no bubbles at one or both ends, and the thin edge piece is positioned at one edge or the other edge. In addition, a heat insulating building characterized by being attached by overlapping adjacent sheets.
Waterproof and breathable on the outdoor side of the rafters stretched between the purlin and the eaves girder, and the eaves girder from the purlin to the eaves girder and between the adjacent rafters. An aluminum heat ray reflective material, a ventilator rim attached to the outdoor side of the aluminum heat ray reflector with a gap, a field plate attached to the outdoor side of the ventilator rim, and the outdoor side of the field plate A roofing attached to the roof, and a roofing finish attached to the outdoor side of the roofing;
An airtight tape affixed to the boundary between the hanging part of the reflector and the side of the rafter,
In the interval section of the rafters on the back side of the shed of the aluminum heat ray reflective material, including a hard urethane resin foam layer blown and blown in the field,
The aluminum heat ray reflective material is a combination of an aluminum foil and a resin bubble sheet, and has a thin edge piece that is thin with no bubbles at one or both ends, and the thin edge piece is positioned at the upper edge or the lower edge. In addition, a heat-insulating building, characterized in that adjacent sheets are stacked and attached.
An aluminum heat ray reflective material that has a thin edge piece that is thin with no air bubbles at one or both ends.

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