JPS6029557Y2 - siding board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a siding board useful as an exterior material for buildings and structures.

Especially when constructing exterior walls, etc., siding boards (
(hereinafter simply referred to as the board).

Recently, the outer walls of houses and the like are often formed of boards.

One reason for this is thought to be that the construction period can be significantly shortened compared to mortar walls.

However, when connecting this type of board, the opening of the insertion groove is small considering its long length, so construction efficiency is low, skill is required, and the core material (polyurethane foam) of the insertion edge is used. It had the disadvantage of being destroyed.

Furthermore, since the back surface of the board is made of a sheet-like material such as paper, there is a problem in that mold grows frequently, resulting in contamination and corrosion.

In order to eliminate these drawbacks, the present invention covers the side wall of the insertion edge of the core material with a waterproof sheet, allowing the insertion edge to have a greater degree of freedom, improving construction efficiency and preventing damage to the core material. The purpose of the present invention is to propose a board that prevents the waterproof sheet from becoming contaminated with mold or corroding.

An example of the board according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing the board, and in the figure,
1 is a main body with a gutter-like cross section and a square or rectangular decorative surface 1a
and side walls 2.3, which are made of one type of plate material that is easy to mold, such as a thin metal plate or a synthetic resin plate.

Reference numeral 4 denotes a male connecting portion, which is formed from an insertion edge 5 and a tongue piece 6 whose tip is bent as shown in the figure or to the opposite side (not shown).

Reference numeral 7 denotes a female connecting part, which bends the edge of the side wall 3 inward in a U-shape to form an insertion groove 8, and extends its lower edge 9 further outward to form an extension part 10, and an extension part 10 in the middle thereof. It is composed of a protrusion 11 provided parallel to the side wall 3, and a tongue piece 12 which is bent upward at the tip of the extension part 10.

Note that the protrusion 11 is provided as necessary, and can also be made to protrude in the opposite direction to that shown in the figure.

In particular, the protrusion 11 has the function of maintaining airtightness and draining water when the male and female molds are connected.

Reference numeral 13 is a resin foam that fills the gutter-like part formed by the main body 1 and the side walls 2 and 3, and is mainly used as a heat insulating material, an adhesive, a lightweight raising material, a cushioning material, a sound absorbing material, and a non-woven material. It functions as a moisture absorption layer.

The materials include polyurethane foam, polyisocyanurate foam, phenol foam, etc., and foams are mainly manufactured from raw materials.

Note that the side wall 2 and the synthetic resin foam 13 (core material) are not bonded together.

In other words, a part of the waterproof sheet 14 is interposed between the synthetic resin foam 13 and the side wall to clearly separate the two.
This is to allow the side wall 2 and the insertion edge 5 to bend freely to some extent.

Further, the waterproof sheet 14 covers the back side of the synthetic resin foam 13 and the side surface on the male connection part side, and also covers the moldproofing agent 1.
5 is applied to the surface that becomes the outer surface.

This material includes asbestos paper, kraft paper, plaster paper,
Synthetic resin films, non-woven fabrics such as glass cloth, metal foils (
It is a laminate of one or more of the following: AI, Cu, Fe, Pb).

In addition, as the fungicidal agent 15, one or more types of, for example, metal soap, phenylacetic acid, mercury, phenonyl compounds, aniline derivatives, benzimidazole derivatives, sulfur compounds, and sanisilanilides are applied, impregnated, and adhered. , or coated.

Next, a mounting example will be described. Assume that the board α is fixed on the trunk edge A using nails B as shown in FIG.

Therefore, the insertion edge 5 of the board β is inserted as shown in the figure, and the board is pushed down in the direction of arrow C to cause the connecting portion to function as a springback, and construction is carried out as shown in FIG. 3.

Therefore, the synthetic resin foam 13 and the waterproof sheet 14 have substantially the same structure as one piece.

Moreover, the waterproof sheet 14 is not destroyed even by the protrusions 11 and nail heads, and the backing effect functions more effectively.

A mold resistance test was also conducted.

The test method was to coat kraft paper with polyurethane resin and coat the surface with metal soap, and a waterproof sheet without metal soap (comparative example).
Test pieces cut out to mm were each made.

An inorganic salt medium was used as the medium.

That is, 15001rLL pure water, 15g glucose, 23f agar, and 501rLL stock solution were prepared.

In addition, as a stock solution, NH1NO3...909, Kcl
...15g, KH2PO4...60 (1, Mg5O
, i・7H20...15g1 pure water...1000rr
It belongs to LL.

Therefore, heat the culture medium using a stainless steel beaker for 2 inches on a gas stove to thoroughly dissolve the culture medium.

Next, the medium was placed in a flask and placed in an autoclave for 12 hours.
The mixture was sterilized at 0° C. and dispensed into petri dishes with a diameter of 150 so that the thickness of the plate was 15 TMt.

Attach the back side of the test piece to the surface of the plate medium, make a spore dispersion using the test bacteria, and use a sprayer to spray the mixture onto the plate medium and the samples such as Black mold, Aspergillus, Freypas, Penicillium funiculozum, and Chaetomium. -Spray Globosum on the surface.

This sample is cultured for 7-14 days at 20±1°C.

As a result, although no mold was observed in the example,
In the comparative example, the entire surface was covered with mold.

As described above, the board according to the present invention has the characteristics of high construction efficiency, less damage to the synthetic resin foam and waterproof sheet, and moreover, effective backing function.

Furthermore, the board according to the present invention has excellent mold resistance, and the back surface of the board is not contaminated or corroded.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of the siding board according to the present invention, FIG. 2 is an explanatory view showing the construction state of the siding board, and FIG. 3 is an explanatory view showing a part of the siding board after construction. 1... Main body, 13... Synthetic resin foam, 14... Waterproof sheet.

Claims (1)

[Scope of utility model registration request] A male connecting part consisting of an outwardly protruding insertion edge is provided on one side edge of the main body with a gutter-like cross section having a square or rectangular decorative surface, and an insertion groove is provided on the other side edge parallel to the side edge. and a female connecting portion having an extension projecting outward from the lower edge of the insertion groove, a synthetic resin foam layer is integrally formed on the back surface of the main body, and a synthetic resin foam layer is integrally formed on the back surface of the main body, and A siding board characterized in that the back of the foam and the side wall on the side of the male connection part are integrally covered with a waterproof sheet coated with a fungicide.