JP2010031631A - Heat shielding and insulating structure and construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat shielding and insulating structure for a building and a construction method providing a comfortable living environment without depending on an air conditioner. <P>SOLUTION: A heat insulating material made of foam resin, a heat shielding material with aluminum sheets stuck to both faces of a cellular cushioning material sheet, and a ventilating sheet having many projections on the surface to substantially come in point contact with the heat shielding material, are laminated in this order on the upper face of a roof structure plate. A roof material is mounted on the upper face of the ventilating sheet through a waterproof sheet. Radiant heat from the roof material is shielded by the heat shielding material, while the ventilating sheet forms a ventilating layer, and radiant heat and convection heat to the indoor side are prevented through the roof structure plate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heat insulating and heat insulating structure and method for a building, and particularly to a heat insulating and heat insulating structure that can be suitably used for a detached house, a livestock barn, and a roof of a factory.

  In recent years, energy saving of a detached house has been demanded, and a technique for eliminating heat inflow and outflow by installing a heat insulating material between the interior and the exterior of a building has been proposed. For example, in the case of roof insulation, a method of inserting a heat insulating material between rafters and a method of laying a heat insulating material on a field board are said to be able to suppress the heat burning phenomenon in the shed space. Yes.

  Further, as a heat insulating material, a technique for enhancing a heat insulating effect by attaching a low width emissivity member made of an aluminum foil or the like having a low emissivity to the surface thereof has been proposed and put into practical use.

  However, in the case of the above heat insulation technology, for example, in the work of inserting a heat insulating material between the rafters, there is a risk that the operator will step off the rafters. In addition, the one that lays a heat insulating material with a low-emissivity member made of thin aluminum etc. on the base plate can ensure the heat insulating effect while improving the roof design by reducing the thickness of the heat insulating material. However, a sufficient effect was not obtained with respect to the heat of the cabin.

  Therefore, a highly airtight and highly heat insulating house in which a roof ventilation layer communicating with the upper end of the outer wall ventilation layer is formed between the outer roof material and the airtight aluminum clothing insulation board provided on the indoor side has been proposed (Patent Document). 1). In addition, a wooden board with a high reflectivity material against width radiation heat, such as aluminum foil, is attached to one or both sides of structural plywood, etc. There is also a heat-insulating and heat-insulating method in which a space in contact with a material such as a body is formed so that a still air layer is formed by a trunk edge or the like (see Patent Document 2).

Noto 3007512 gazette JP 2007-231716 A

  However, the house proposed in Patent Document 1 is a method of attaching a heat insulating board on a rafter, and there remains a problem in worker safety. Moreover, the technique of patent document 2 affixes the material of high reflectivity with respect to width radiation heat, such as aluminum foil, on one side or both sides of the wood board such as the wood plywood which is the base material of the roof, and further touches the aluminum foil surface. Although the exterior material has a still air layer formed by a trunk edge and the like, and the heat radiation can be blocked by the aluminum foil, there is a possibility that heat transfer may occur in the room as the temperature in the still air layer rises.

  In view of the above problems, the present inventor has arranged a heat insulating material that reliably blocks heat radiation from the outside in the heat insulating heat insulating structure of the roof portion of the detached house, and the heat insulating material and the roof material. A heat insulating and heat insulating structure and construction method capable of efficiently exhausting heat by providing a ventilation layer between the two are provided.

  For this reason, the heat insulating and heat insulating structure of the present invention includes a heat insulating material made of foamed resin on the upper surface of the roof structure plate, a heat insulating material having an aluminum sheet adhered to at least the upper surface of the bubble cushioning material sheet, and the heat insulating material. A ventilation sheet having a large number of convex portions that are substantially point-contacted with the aluminum sheet surface is laminated in order, and a roof material is attached to the top surface of the ventilation sheet via a waterproof sheet, and the width radiation from the roof material is In addition to being shielded by a heat shielding material, a ventilation layer is formed between the heat shielding material and the roof material by the ventilation sheet to prevent indoor radiant heat and convection heat through the roof structure plate material. One feature.

  A second feature is that the roof structure plate is provided with a hole for taking in outside air and communicates with the ventilation layer.

  And the construction method of the present invention includes a foamed resin heat insulating material on the top surface of the roof structure plate material, a heat shielding material in which an aluminum sheet is adhered to at least the top surface of the bubble cushioning material sheet, and the aluminum sheet surface of the heat shielding material. A ventilation sheet having a large number of convex portions that are substantially point-contacted and laminated in order and attached with mounting nails, and further, a metal roofing material is attached to the upper surface of the ventilation sheet via a waterproof sheet, and the roof structure An outside air intake hole is formed in a predetermined portion of the body plate material.

  According to the heat insulating and heat insulating structure according to the present invention, the foamed resin heat insulating material on the upper surface of the roof structure plate, the heat insulating material having the aluminum sheet adhered to at least the upper surface of the bubble cushioning material sheet, and the heat insulating material Since the ventilation sheet having a large number of convex portions that are substantially point-contacted with the aluminum sheet surface is laminated in order, and the roof material is attached to the upper surface of the ventilation sheet via the waterproof sheet, Radiant heat has an excellent effect of being blocked by the heat shielding material.

  In addition, since the outside air intake hole formed in the roof structure plate material and the ventilation layer communicate with each other, the radiant heat blocked by the heat shielding material is discharged to the outside through the ventilation layer, and the heat shielding material Has the effect of not accumulating heat.

  And the construction method of the present invention includes a foamed resin heat insulating material on the top surface of the roof structure plate material, a heat shielding material in which an aluminum sheet is adhered to at least the top surface of the bubble cushioning material sheet, and the aluminum sheet surface of the heat shielding material. Since the air-permeable sheets having a large number of convex portions that are substantially point-contacted are sequentially laminated and pasted by the mounting nails, it has an excellent effect that the construction can be performed safely and in a short time.

It is a section explanatory view showing one example of the heat insulation heat insulation structure concerning the present invention. It is sectional drawing which shows a heat shield. It is sectional explanatory drawing which shows a ventilation sheet.

  Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments, but it is needless to say that the present invention is not limited to the embodiments. FIG. 1 is a cross-sectional explanatory view showing an embodiment of the heat-shielding and heat-insulating structure of the present invention, FIG. 2 is a cross-sectional explanatory view showing a heat-shielding material, and FIG. 3 is a cross-sectional explanatory view showing a ventilation sheet.

  As shown in FIG. 1, the heat-insulating and heat-insulating structure of the present invention is a base plate 2 that is a structural plywood on a rafter 1 attached at a predetermined inclination to the upper part of a purlin or girder that is a roof member of a detached house. A heat insulating material 3 made of various foams such as polystyrene foam is fixed thereon with nails (not shown), and an aluminum sheet is attached to both sides of a polyethylene bubble cushioning material sheet. A material 4 and a breathable sheet 5 in which a plurality of three-dimensional mesh-shaped convex portions are formed on a nonwoven fabric sheet are configured such that the convex portions and the aluminum sheet surface are laminated in substantially point contact and are fixed by nails. A hole 6 is formed at a predetermined position on the side of the base plate 2, and a through hole 7 is formed through the heat insulating material 3 facing the hole 6 to the heat shield 4. And the asphalt roof material 8 which is a waterproof material under a roof is laid, and the metal roof member 9 which is a roof material is laid.

  An eave ceiling member 10 is laid below the hole 6, and a vent hole 11 is formed at a predetermined position of the eave ceiling 10 so as to be able to ventilate the hole 6.

  FIG. 2 shows a cross-sectional view of the heat shielding material 4, in which aluminum sheets 13 are adhered to both surfaces of a bubble cushioning sheet 12 made of a polyethylene film, and the thickness is approximately 4 mm. The aluminum sheet 13 efficiently reflects the radiant heat and can be insulated by the bubble buffer sheet 12. In addition, the aluminum sheet 13 may be a thing with which only the single side | surface of the bubble buffer sheet 12 was stuck.

  FIG. 3 shows a cross-sectional view of the air-permeable sheet 5, in which a plurality of three-dimensional mesh-shaped convex portions 15 made of a weather resistant resin are attached to a base material 14 made of a nonwoven fabric. When the convex part 15 of the ventilation sheet 5 is brought into contact with the surface of the aluminum sheet 13 of the heat shielding material 4 and laminated, a ventilation space corresponding to the height of the convex part 15 is formed, and the hole 6 and the through-hole part described above are formed. A ventilation layer is formed by ventilation from 7. The convex portion 15 has a three-dimensional mesh shape made of a weather resistant resin, and is excellent in compressive strength in the vertical direction and air permeability.

  According to the heat-insulating and heat-insulating structure of the present invention having the above-described configuration, the heat-insulating material is laminated between the field board as the roof member and the asphalt roof material, and the air-permeable sheet extends in the width radiation reflection direction of the heat-insulating material. Therefore, the radiant heat from the metal roof member is efficiently reflected, and the reflected radiant heat is discharged outside through the vent layer. For this reason, the radiant heat into the attic corresponding to the attic is largely cut off, and the temperature rise in the attic can be significantly suppressed as compared with the conventional roof structure. In addition, a heat insulating material made of foam is laid on the top of the field board, and heat release from the back of the cabin is suppressed, especially in winter.

(Experimental example 1)
The temperature in summer was measured in a detached house in which the heat-insulating and heat-insulating structure having the above structure was formed on the roof. In addition, the house which measured was a two-story house built on a sunny hill. The results are shown in Table 1.

  As shown in Table 1, it was found that the indoor maximum temperature was lower than that of the outdoors even on the second floor. Moreover, even in the back of a hut, which is usually hotter than outdoors, the temperature is equivalent to that of the second floor, and the difference between the lowest and highest temperatures is very small, resulting in a comfortable living environment.

(Experimental example 2)
The heat insulation and heat insulation structure of the present invention and the structure of a general roof are created, an experimental device using an incandescent lamp as a heat source is created, and heated by the incandescent lamp from the roof material side. Changes were measured. The results are shown in Table 2. The details of the heat insulation and heat insulation structure and the general roof structure are as follows.
(General roof)
Sheet metal No. 9mm
(Thermal insulation structure)
Sheet metal Ventilation sheet 10mm
Aluminum sheet 0.1mm
Bubble buffer sheet 4mm
Aluminum sheet 0.1mm
Styrofoam sheet 12mm
Field board 9mm

  As shown in Table 2, the heat-insulating and heat-insulating structure of the present invention has a large temperature difference between the roof upper part and the roof lower part as compared with a general roof structure, and effectively prevents a temperature rise due to width radiation from the heat source. I understood. Moreover, it has been found that the temperature rise in the lower part of the roof is small compared with general roofing materials even after 30 minutes to 6 hours from the start of the experiment, and a comfortable living environment can be obtained.

  The heat-insulating and heat-insulating structure of the present invention having the above-described configuration is the heat-insulating and heat-insulating structure of the roof portion of a detached house, in which a heat-insulating material that reliably blocks the radiation heat from the outside is disposed, and this heat-insulating material By providing a ventilation layer between the roof and the roof material, heat can be efficiently exhausted.

DESCRIPTION OF SYMBOLS 1 Rafter 2 Field plate 3 Heat insulating material 4 Heat insulation material 5 Ventilation sheet 6 Hole part 7 Through-hole part 8 Asphalt roof material 9 Metal roof member 10 Eaves top member 11 Vent hole part 12 Bubble buffer sheet 13 Aluminum sheet 14 Base material 15 Convex Part

Claims (3)

  A heat insulating and heat insulating structure for a building, comprising: a heat insulating material made of foamed resin on an upper surface of a roof structure plate material; a heat insulating material having an aluminum sheet adhered to at least an upper surface of a bubble cushioning material sheet; and A ventilation sheet having a large number of convex portions that are substantially point-contacted with the aluminum sheet surface is laminated in order, and a roofing material is attached to the upper surface of the ventilation sheet via a waterproofing sheet, and the width radiation heat from the roofing material is reduced. In addition to being blocked by the heat shielding material, a ventilation layer is formed between the heat shielding material and the roofing material by the ventilation sheet, and it is possible to prevent indoor radiant heat and convection heat through the roof structure plate material. Characteristic thermal insulation structure.   2. An outside air intake hole is formed in the roof structure plate material, and a foamed resin heat insulating material and a heat shielding material opposed to the hole are opened and communicated with the ventilation layer. The thermal insulation structure as described.   A heat insulating material made of foamed resin on the top surface of the roof structure plate material, a heat shielding material in which an aluminum sheet is stuck on at least the top surface of the bubble cushioning material sheet, and a number of protrusions that are in point contact with the aluminum sheet surface of the heat shielding material The ventilation sheet having a portion is laminated in order and attached with mounting nails, and further, a roof material is attached to the upper surface of the ventilation sheet via a waterproof sheet, and from a predetermined portion of the roof structure plate material A heat insulating and heat insulating method for a building, wherein the heat insulating material made of foam resin and the heat insulating material are penetrated to form a hole for taking in outside air.

Images