JP2013057222A - Construction method for heat shielding building, and the heat shielding building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a heat shielding building, excellent in countermeasures for convection heat, conduction heat, radiation heat and surface dew condensation and in workability, and to provide the heat shielding building.SOLUTION: The construction method includes the steps of: mounting an aluminum heat-ray reflective material having heat shielding property, waterproofness and moisture permeability on the outdoor side of a column/stud, a pole plate and a bedsill; mounting ventilation furring strips at spaces on the outdoor side of the aluminum heat-ray reflective material; mounting an outer wall finishing material on the outdoor side of the ventilation furring strips; attaching an airtight tape to the indoor side of the aluminum heat-ray reflective material at its boundary with space sections of the column/stud, the pole plate and the bedsill; spraying hard urethane resin foamable liquid foamed at a site into the space sections; mounting an inner wall substrate on the indoor side of the stud; and mounting an inner wall finishing material on the indoor side of the inner wall substrate. The building is constructed in the same. A similar construction method for a ceiling structure and an attic structure is provided, and a building is constructed in the same.

Description

  The present invention relates to a method for building a heat shield building and a heat shield building.

  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. In the second example, boards in which an aluminum material or the like is bonded to the surface of the foamed board are in circulation. The third 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 second example, workability is poor and a large amount of dust is generated. Moreover, when it uses for an outer-layer heat insulation construction method, whenever the thickness of a heat insulating material increases, the effect of a screw decreases and a problem arises in a support body. In addition, in order to improve the airtight performance, an airtight tape is applied to adjacent butted portions of the board, which requires labor and cost. The third example does not allow moisture to pass through, so indoor humidity cannot be discharged outdoors. Further, when the sheet is attached to the outdoor side of the column and the crosspiece is nailed to the outdoor side with a nail, the crosspiece may be bent due to air bubbles in the sheet due to bubbles in the sheet.

  The present invention solves the above problems, and provides a method for constructing a heat shield building and a heat shield building excellent in workability, convection heat measures, conduction heat measures, radiant heat measures, surface condensation measures, and excellent workability. Objective.

  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 having heat shielding properties, waterproof properties, and moisture permeability to the outdoor side of a pillar / intermediate column, eaves girder and foundation, Attaching the ventilator edge to the outdoor side of the material with a gap, attaching the outer wall finishing material to the outdoor side of the ventilator edge, and the columns / intercolumns, eaves girder on the indoor side of the aluminum heat ray reflective material And a step of attaching an airtight tape to the boundary portion of the interval section of the foundation, a step of foaming and blowing a hard urethane resin foamable liquid in the interval section, and 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.

  According to a second problem solving means of the present invention, there is provided a step of attaching an aluminum heat ray reflective material having a heat shielding property, a waterproof property, and a moisture permeability property to a back side of a shed of a ceiling base material, and the ceiling on the indoor side of the aluminum heat ray reflective material. It includes a step of foaming and spraying a hard urethane resin foamable liquid in the space section of the base material on site and a step of attaching a ceiling finishing material to the indoor side of the ceiling base material.

  According to the third problem solving method of the present invention, when the aluminum heat ray reflective material having heat shielding, waterproof, and moisture permeability is attached to the part from the purlin to the eaves girder on the outdoor side of the rafter, the reflection at the eaves girder part is performed. Aluminum heat ray reflection that cuts the part corresponding to both sides of the rafter of the part where the lumber is in contact with the rafter, hangs the reflective material between the adjacent rafters, and attaches the lower edge to the outdoor side of the eaves girder A step of attaching a material, a step of attaching a ventilation trunk edge to the outdoor side of the aluminum heat ray reflective material with a gap, a step of attaching a field plate to the outdoor side of the ventilation drum edge, and a step of attaching the ground plate to the outdoor side of the field plate A step of attaching a roofing, a step of attaching a roof finishing material to the outdoor side of the roofing, a step of attaching an airtight tape to a boundary portion between a hanging portion of the reflecting material and a side surface of the rafter, and a shed side of the aluminum heat ray reflecting material The rafter The spacing in the compartment, is to include a step of blowing by foaming rigid urethane resin foamable liquid in situ.

  The building of the fourth problem-solving means of the present invention comprises an aluminum heat ray reflective material having heat shielding properties, waterproof properties, and moisture permeability attached to the outdoor side of columns / intermediate columns, eaves girder and foundation, and the aluminum heat ray reflective material A ventilator edge attached to the outdoor side of the ventilator, an outer wall finishing material attached to the outdoor side of the ventilator rim, and the pillars / intermediate pillars, eaves girder and eaves on the indoor side of the aluminum heat ray reflector An airtight tape affixed to the boundary of the interval section of the base, a hard urethane resin foam layer foamed and sprayed on-site in the interval section on the indoor side of the aluminum heat ray reflective material, and And including an inner wall base attached to the indoor side and an inner wall finishing material attached to the indoor side of the inner wall base.

  The building of the fifth problem solving means of the present invention includes an aluminum heat ray reflective material having heat shielding properties, waterproof properties, and moisture permeability attached to the back side of the shed of the ceiling base material, and the indoor side of the aluminum heat ray reflective material. The space section of the ceiling base material includes a hard urethane resin foam layer foamed and sprayed on site and a ceiling finishing material attached to the indoor side of the ceiling base material.

  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 And a hard urethane resin foam layer that is foamed and sprayed on site in the interval section of the rafters on the back side of the shed of the aluminum heat ray reflective material.

  According to a seventh problem solving means of the present invention, in the first, second and third problem solving means, in the step of foaming and spraying a hard urethane resin foamable liquid on-site into the interval section, isocyanate and water are used. The carbon dioxide gas generated by mixing is utilized as a foaming agent for foaming.

  The building of the eighth problem solving means of the present invention is the building of the fourth, fifth and sixth problem solving means, wherein the resin foam layer blown and sprayed at the site is composed of countless fine open cells. It is.

  The present invention combines three types of heat transfer: convection heat, conduction heat, and radiant heat, by combining 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 reflecting material and the rafter side surface. 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.

It is a longitudinal cross-sectional view of 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, a sheet having heat shielding properties, waterproof properties, and moisture permeability is used. (This also applies to the ceiling structure and shed structure described later)
○ Manufacturer / Seller: Seiren Co., Ltd., Address: 1-1 1-1 Minami Aoyama, Minato-ku, Tokyo (Minami Aoyama Building East Building 17F)
Product Name: Lamitect Thermo ○ Importer: DuPont Flashspan Products Co., Ltd.
Address: 2-11-1, Nagatacho, Chiyoda-ku, Tokyo (Sanno Park Tower)
Product Name: DuPont Tyvek Silver Next, the ventilator edge 12 that is long on the top and bottom is attached to the pillar 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.
The formed resin foam layer is composed of countless fine open cells.

That is, for example, the following raw materials are used and the spray foaming machine is used. (This also applies to the ceiling structure and shed structure described later)
○ Raw material: Hard urethane Product name: Aqua foam,
Composition (volume ratio) polyol component: 100, isocyanate component: 100,
Foaming agent: Carbon dioxide gas generated by mixing isocyanate and water is used as a foaming agent. ○ Manufacturer and seller: Nippon Aqua Co., Ltd., Address: 2-25 Kitamachi, Minami-ku, Nagoya-shi.

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 that communicates with the outside air at the top and bottom by the ventilator edge 12 is formed within the interval between the outer wall finishing material 13 and the aluminum heat ray reflective material 1 (about 15 mm to about 40 mm). Therefore, 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. Since only the foamed resin layer has little reflection of heat rays, 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. In addition, the aluminum heat ray reflective material with heat insulation, waterproofness and water 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.

  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. 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. 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.

  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 used for a method for building a heat insulating building, a heat insulating building, and various uses that require heat insulation, heat insulation, heat insulation, and reduction of electromagnetic waves.

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 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 Back of hut 31 Rafter 32 Venting trunk edge 33 Base plate 34 Roofing 35 Roof finishing material 36 Ventilation building tile

Claims (8)

Install the aluminum heat ray reflective material with heat shielding, waterproof and moisture permeability on the outdoor side of the pillars, studs, eaves girder and foundation, and leave the ventilator edge on the outdoor side of the aluminum heat ray reflective material. A step of attaching, a step of attaching an outer wall finishing material to the outdoor side of the ventilator rim,
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 A method for constructing a heat-insulating building, comprising:
A process of attaching an aluminum heat ray reflective material having heat shielding properties, waterproof properties, and moisture permeability to the back side of the roof 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; The construction method of the heat insulation building characterized by including.
When installing an aluminum heat ray reflective material with heat shielding, waterproof, and moisture permeability 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 where the reflector is in contact with the rafter at the eaves part, hang the reflector between the adjacent rafters, and attach the lower edge to the outdoor side of the eaves Attaching the aluminum heat ray reflecting material, attaching the ventilation drum edge to the outdoor side of the aluminum heat ray reflecting material with a gap, attaching the field board to the outdoor side of the ventilation drum edge, Attaching the roofing to the outdoor side of the field board, attaching the roofing 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;
And a step of foaming and spraying a hard urethane resin foamable liquid in the space between the rafters on the backside of the aluminum heat ray reflective material.
Aluminum heat ray reflective material with heat shielding, waterproof, and moisture permeability attached to the outdoor side of pillars, studs, eaves and foundation, and ventilation attached to the outdoor side of the aluminum heat ray reflective material with a gap A trunk edge, and an outer wall finishing material attached to the outdoor side of the ventilation trunk edge;
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 A heat-insulating building comprising an inner wall finishing material attached to the inside. An aluminum heat ray reflective material with heat shielding, waterproof, and moisture permeability 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 Thermal insulation building characterized by including.
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,
A heat-insulating building comprising a hard urethane resin foam layer foamed and sprayed on site in the interval section of the rafters on the back side of the hut of the aluminum heat ray reflective material.
4. The foaming agent according to claim 1, 2, or 3, wherein in the step of foaming and blowing the hard urethane resin foamable liquid in the space section, carbon dioxide generated by mixing isocyanate and water is used as a foaming agent to foam. How to build a heat shield building.
The heat insulation building according to claim 4, 5 or 6, wherein the resin foam layer foamed and sprayed at the site is composed of countless fine open cells.

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