JP3025427U - Exterior wall structure of a house - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention has been devised in view of the above-mentioned points, and in the summer, the amount of heat transfer from the outer wall surface to the base panel can be reduced to prevent the base panel from burning. It is also possible to provide an outer wall structure of a house that can block the transmission of cold outside air to the room in winter. [Structure] An outer wall structure of a house including an outer layer 1 having weather resistance and an inner layer 2 having a heat insulating function. The inner layer 2 includes a base panel 2a and a heat insulating layer 2b. The base panel 2a is
Protrusions 21 are provided on one surface of a polystyrene foam plate, and the protrusions 21 are in close contact with the outer layer 1 to form a gap 3 between the outer layer 1 and the outside air from the bottom to the top. The heat insulating layer 2b is formed by spraying urethane foam so as to cover the base panel 2a.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a housing outer wall structure suitable for realizing a highly heat-insulated and airtight house.

[0002]

[Prior art]

 As a conventional example of a housing outer wall structure having an outer layer having weather resistance and an inner layer having a heat insulating function, as a conventional example, a base panel in which the inner layer is slightly separated from the outer layer and made of veneer, and urethane foam is sprayed onto the base panel Some of them are composed of a heat insulating layer. Therefore, the outside air is circulated from the bottom to the top in the gap between the outer wall layer and the base panel to cool the base panel. However, the base panel made of veneer has a drawback that the heat transmission resistance is small and the heat insulating function is deteriorated. In addition, since the surface of the base panel on the side of the gap is condensed on a cold or rainy day, the base panel repeatedly absorbs and dries water and is burned by radiant heat in the summer, so there is a drawback that deterioration progresses over the years. . Another conventional example is a structure in which a base panel made of corrugated paper is provided instead of the base panel made of the veneer. This has a slightly higher heat transmission resistance than a base panel made of veneer and has a slightly improved heat insulation function, but the surface of the base panel on the side of the gap has condensation and condensation on a cold weather day or a rainy day. Since it repeats and can be burnt by radiant heat in the summer, there is a risk that it will deteriorate significantly over the years and fall off. Further, as another conventional example, there is a configuration in which a base panel made of expanded polystyrene is provided in place of the base panel made of the veneer or corrugated paper. This is because when the base panel is placed in close contact with the outer layer and the outside air is circulated from the bottom to the top in the vertical groove formed in the surface of the side of the base panel that is in close contact with the outer wall panel, the bottom panel is cooled. Along with this, a structure in which a heat insulating layer of urethane foam is sprayed and formed on the inner surface of the base panel is used. This is because although the heat transmission resistance of expanded polystyrene is greater than that of veneer or corrugated cardboard and has superior durability, the heat insulation function of the base panel is low because the contact area between the base panel and the outer layer is large. It also has low durability. In addition, this is because the base panel has vertical grooves engraved, so the base panel has directionality during processing, and it is not possible to replace the vertically long base panel with the horizontally long base panel, leaving many semi-milled materials. It was uneconomical.

[0003]

[Problems to be solved by the device]

 The present invention has been devised in view of the above-mentioned points, and the amount of heat transfer from the outer wall surface to the base panel in the summer can be reduced to prevent the base panel from being burnt and to prevent the cold outside air in winter. It provides the outer wall structure of a house that can block the transmission to the room.

[0004]

[Means for Solving the Problems]

 As a means for solving the above problems, the present invention provides an outer wall structure of a house including an outer layer 1 having weather resistance and an inner layer 2 having a heat insulating function, wherein the inner layer 2 is made of expanded polystyrene plate and one surface thereof is formed. And a base panel 2a having protrusions 21 having flat ends arranged in a predetermined pitch in the vertical and horizontal directions and having flat ends. The base panel 2a adheres the protrusions 21 to the outer wall layer, and foams to cover the base panel 2a. It is intended to provide an outer wall structure of a house, which is characterized by comprising a heat insulating layer 2b formed by spraying urethane.

[0005]

[Embodiment of device]

 FIG. 1 shows an embodiment of a housing outer wall structure of the present invention. In the outer wall structure of this house, the outer layer 1 is provided so as to be externally attached to the pillar members 4a and the stud members 4b, for example, the rough board 1a is nailed by applying the waterproof paper 1b so that the longitudinal direction becomes horizontal. While covering with a wire mesh material and applying the mortar 1c, a base panel 2a made of expanded polystyrene is stacked on the inner surface of the rough plate 1a and temporarily fixed with adhesive tape or the like, and urethane foam is sprayed onto the base panel 2a to form a heat insulating layer 2b. The heat insulating layer 2b is formed to cover the pillar members 4a and the stud members 4b so that the heat insulating layer 2b is self-supported and the base panel 2a is fixed. By contacting the projections 21, 21, ... Protruding on one surface of the panel 2a, the projections 21, 21, 21, ... Protruding from the base panel 2a are provided between the rough plate 1a and the base panel 2a. What is a structure in which a gap 3 is secured in communication with the vertical and horizontal.

The reason why the expanded polystyrene is selected as the base panel 2a is that it has higher durability and higher heat transmission resistance (higher heat insulating function) than veneer or cardboard. The base panel 2a is sufficient if it has a thickness that does not bend or sag when urethane foam is sprayed, and a thickness of about 10 mm is sufficient. The protrusions 21, 21, ... Are projected in a truncated cone shape having a base diameter of 30 mm, a tip diameter of 20 mm, and a height of 20 mm, and the vertical pitch is about 15 cm and the horizontal pitch is about 11 cm. Are arranged as follows. By contacting the tips of the protrusions 21, 21, ... With the rough plate 1a, a gap 3 of 20 mm is secured between the base panel 2a and the rough plate 1a, through which outside air can flow from bottom to top. . If the thickness of the heat insulating layer 2b formed by spraying urethane foam is about 25 mm on the wall surface portion and about 30 mm on the ceiling portion, a necessary and sufficient heat insulating effect can be obtained. It should be noted that the above numerical values of the protrusions 21 are not intended to limit the present invention. Further, the arrangement of the protrusions 21 may be irregular. The outer layer 1 may be a lightweight concrete board, a siding panel, or the like.

[0007]

[Effect of device]

 The outer wall structure for a house according to the present invention described above has the following effects. The heat that flows through the outer layer 1 in the summer tries to be transferred to the base panel 2a, but since the outside air flows through the gap 3 between the base panel 2a and the outer layer 1 (rough plate 1a) from the bottom to the top, Can be cooled. By providing the projections 21, 21, ..., The contact area between the base panel 2a and the outer layer 1 (rough plate 1a) is suppressed to the necessary minimum, but a gap 3 in an area sufficient for the outside air to flow is secured. Has been done. Therefore, the effect that the outside air flowing through the gap 3 cools the base panel 2a is largely secured, and the seizure of the base panel 2a can be suppressed even after a long period of time. Since the base panel 2a is made of expanded polystyrene having high durability and high heat transmission resistance, the amount of heat transmitted from the base panel 2a to the heat insulating layer 2b made of urethane foam is reduced. The cold heat flowing through the outer layer 1 in winter tries to be transferred to the base panel 2a, but there is a gap 3 between the base panel 2a and the outer layer 1 (rough plate 1a), and the base panel 2a and the outer layer 1 (rough plate 1a). Since the area of close contact with is minimized, the transfer of cold heat from the outer layer 1 to the lower panel 2a is largely cut off. The outside air flowing through the gap 3 cools the lower panel 2a, but the amount of cold heat transferred is lower than the amount of cold heat transferred from the outer layer 1 to the lower panel 2a because the outer layer 1 and the lower panel 2a are in close contact with each other. Since the base panel 2a is much smaller, and the base panel 2a is made of expanded polystyrene having high durability and high heat transmission resistance, the amount of cold heat transmitted from the base panel 2a to the heat insulation layer 2b made of urethane foam is not increased. There is no problem that heating of the room does not work. Since the outside air circulates in the wall throughout the four seasons, the pillars 4a, the studs 4b, and the rough plate 1a hidden by the heat insulating layer 2b made of urethane foam ensure breathing, and the housing is durable and durable. Since the base panel 2a can be used vertically or horizontally and has no directionality, a large amount of semi-milled material does not remain, which is economical. Since the heat insulating layer 3 made of urethane foam is provided, high heat insulation and high airtightness of the house can be secured.

[Brief description of drawings]

FIG. 1 relates to an outer wall structure of a house according to an embodiment of the present invention,
(a) is an overall conceptual view of the outer wall structure of the house, and (b) is a detailed horizontal sectional view.

[Explanation of symbols]

 1 ・ ・ ・ Outer layer 2 ・ ・ ・ Inner layer 2a ・ ・ ・ Base panel 21 ・ ・ ・ Protrusions 2b ・ ・ ・ Heat insulation layer 3 ・ ・ ・ Gap

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04B 2/56 H 6951-2E 644 H 6951-2E 645 B 6951-2E C 6951-2E

Claims (1)

[Scope of utility model registration request] 1. An outer wall structure for a house, comprising an outer layer having weather resistance and an inner layer having a heat insulating function, wherein the inner layer is made of expanded polystyrene plate and is arranged on one surface at a predetermined pitch in a longitudinal direction and a lateral direction. An outer wall structure for a house, characterized in that it comprises a base panel having protrusions with flat ends protruding from the outer wall layer, and a heat insulating layer formed by spraying urethane foam so as to cover the base panel. .