JPH03463B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite board for construction that has heat insulation properties, an air cycle function, and fire retardant properties necessary for use as an inner or outer wall material for buildings and structures.

With the spread of energy conservation laws, the use of insulation materials in buildings is steadily increasing. However, the state of construction of the heat insulating material in this type of building was such that only emphasis was placed on the heat insulating property. As a result, dew condensation occurs in houses, for example, causing corrosion of constituent materials, deterioration of the performance of heat insulating materials, staining of furniture, clothes, etc., and deterioration of the indoor environment, which have become major problems. The causes of this kind of problem are ○a. Insufficient insulation of the outer wall of the building, ○b. Insufficient ventilation between various parts, ○c. Insufficient circulation of air inside the building, ○d. Inadequacy of the moisture barrier layer, etc. It is.

In order to eliminate such drawbacks, the present invention integrally forms a synthetic resin foam with a closed-cell foam structure, a pipe, and a special sheet-like material between an impermeable base material and a sheet-like material. We propose a composite board for construction that significantly improves the functions of ○I to ○D above and prevents internal and external condensation on the back surface of the building.

An embodiment of the architectural composite board according to the present invention will be described in detail below with reference to the drawings. 1 is mainly a hard base material formed with a concave cross section and a long rectangular shape, and mainly functions as a surface material and a decorative material (embossed board, ricin coated board). Reference numeral 2 denotes a male type connecting part, which has an insertion edge 3 that protrudes outward from one side end of the main body 1, and 4 denotes a female type connecting part, which bends the other side edge of the main body 1 inwardly, and then bends the other side edge of the main body 1 outward again. An insertion groove 5 is provided to protrude toward the outside, and a lower edge 6 of the insertion groove 5 is extended outward to form an extension portion 7. Reference numeral 8 denotes a protrusion, which is provided as necessary in the middle of the extension part 7, and 9 and 10 are tongue pieces formed at the insertion edge 3 and the tip of the extension part 7 as shown in Fig. 2 a to h. It functions to prevent injuries to workers, drainers, and workers when constructing and transporting composite boards for construction, as well as imparting elasticity to the connections between composite boards and helping to strengthen the bonding force. Reference numeral 11 denotes a heat insulating layer which extends downward from the concave lower surface of the main body 1 and the rear surfaces 2a and 4a of the male and female connecting portions 2 and 4, the so-called bulging portion 12 and the male portion of the bulging portion 12. The notch portion 12a is recessed in the vicinity of the connecting portion 2 by Δl. The heat insulating layer 11 is mainly made of heat insulating material,
It functions as a heat insulating material, a core material, a shape retaining material, and a pipe holding material to be described later. The material for the heat insulating layer 11 is one or more of synthetic resin foams such as polyester foam, polyurethane foam, polyisocyanurate foam, phenol foam, polystyrene foam, polyethylene foam, vinyl chloride foam, etc.
The manufacturing method is to use a molded body or to use an in-situ foaming method. From the standpoint of fire protection and heat insulation, polyisocyanurate foam and phenol foam, which have a closed cell structure and form a carbonized layer, are particularly preferred. Moreover, the thickness H ₁ to _{H 3} of the heat insulating layer 11 is H ₁ >
Form H ₂ H ₃ , H ₂ =4 mm or more. Note that H ₂ =
The reason why the thickness is set to 4 mm or more is to prevent the occurrence of dew condensation due to the heat insulation properties at the joints when the architectural composite boards are connected to each other. 1
Reference numeral 3 denotes a pipe, which has a shape as shown in FIGS.
A large number of holes are bored therein, and the holes mainly function as a forming material for the air circulation path 15 and a reinforcing material for the composite plate. Further, the micropores 14 are in the range of microns to millimeters. Furthermore, the material is one or more of synthetic resin, metal plate, thick foil, and paper (kraft paper, cardboard). To explain further, Fig. a shows a pipe 13 in which micropores 14 are drilled throughout the pipe 13, Fig. b shows a pipe 13 in which micropores 14 are present at a high density only at both ends, and are coarsely distributed in the middle part. In figure c, the micropores 14 are distributed at a high density only at both ends of the pipe 13, and the distribution of the micropores 14 in figures d to g is similar to that in figure d and figure a, and figure e and g.
The figure corresponds to figure c, and figure f corresponds to figure b, but in figures d to g, the cross-sectional shape of the pipe 13 is the same as that of the former.
Unlike the circular shape shown in c, this pipe is formed into a tapered shape, a trapezoidal shape, a triangular shape, a semicircular shape, etc. Of course,
The cross section of the pipe 13 can be formed into another polygonal shape, a circular deformation, or an elliptical shape.
16 is a sheet-like material made of one or more types of waterproof sheet [(asphalt felt, synthetic resin film, kraft paper, metal foil (Al, Fe, Cu)]), and covers the exposed surface of the heat insulating layer 11. In addition, a large number of micropores are formed at least on the surface corresponding to the portion where the pipe 13 is present.

Next, a construction example will be explained.

That is, in order to form the outer wall of a building using architectural composite boards as shown in Fig. ₁ , as shown in Fig.
Then, insert the insertion edge 3 of the architectural composite board A ₂ into the insertion groove 5 of the architectural composite board A ₁ . Therefore, in order to form the outer wall, such operations may be repeated in sequence. Moreover, in the vertical direction, as shown in FIG. 4, the upper and lower end openings of the pipe 13 are closed by a drain D and a stopper E, thereby allowing an air cycle between the attic 17 and the underfloor 18. Note that F is the base.

In buildings constructed in this way, the temperature on the indoor surfaces tended to approach room temperature. In addition, because the air circulation path 15 functions to perform an air cycle between the upper and lower parts of the building, and because the insulation is sufficient, there was no occurrence of dew condensation.

What has been described above is only one embodiment of the architectural composite board according to the present invention, and the heat insulating layer 11 contains inorganic porous particles such as pearlite particles and shirasu balloons, silicates, borates, and fibrous materials. It is also possible to add more than one species to improve fire resistance and mechanical strength.

As described above, according to the composite board for construction according to the present invention, a single composite board has heat insulation properties, an air circulation path, and a reinforcing material, so there is no condensation, and buildings with heat insulation properties and strength can be realized. It has the characteristic of being able to easily build things.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of a composite board for construction according to the present invention, FIGS. 2 a to h are explanatory diagrams showing an example of a tongue piece, and FIGS. The explanatory drawings shown in FIGS. 4 and 5 are explanatory drawings showing a part of a building formed using the composite board for construction according to the present invention. DESCRIPTION OF SYMBOLS 1... Main body, 2... Male connection part, 3... Insertion edge, 5... Insertion groove, 6... Lower edge, 8... Projection, 1
2...bulge, 13...pipe, 14...micropore.

Claims (1)

[Claims] 1 A main body with a concave cross section made of a hard base material, a male connecting part having an insertion edge that projects outward from one end of the main body, the other end of which is bent inward and outward again. A female connecting portion that protrudes to form an insertion groove and has an extension portion extending the lower edge of the insertion groove outward; In an architectural composite board in which a heat insulating layer made of a synthetic resin foam is provided with a bulge that protrudes downward from the back surface of the connecting portion, the bulge has a slight bulge on the outer peripheral surface. At least one pipe for an air circulation path having a large number of holes is provided. A part of the outer periphery of the pipe is exposed from the back surface of the bulge, and the back surface of the heat insulating layer corresponds to at least the part where the pipe is present. An architectural composite board characterized by being coated with a sheet-like material having a large number of micropores on its surface.