JPH0715206B2 - Outer wall structure - Google Patents

Description

The present invention relates to an outer wall structure of a building or a structure. More specifically, the present invention relates to an outer wall structure that is easy to construct and has excellent waterproofness, fireproofness, and condensation resistance.

[Conventional technology]

Conventionally, for example, a mortar wall or a siding material is used as a base for a glass fiber filled between main columns and studs, and a base plate such as a lath board is nailed on the base, and a waterproof sheet is stretched on the base plate. . After that, in the case of a mortar wall, the lath material is locked with staples and the mortar wall material is applied on it, or when using siding material, a furring strip is provided on the waterproof sheet, or a waterproof sheet is used. It was usual that the outer wall was formed by directly fixing the furring strips to the main columns and studs and then siding material on them.
However, in this type of outer wall structure, a waterproof sheet such as asphalt felt is indispensable and there is a drawback that the construction takes time. Further, dew condensation is unavoidable, and there is a problem that the constituent materials are corroded and the glass fiber becomes a damp cloth.

[Object of the Invention]

In order to eliminate such defects, the present invention uses a composite board in which a breathable waterproof sheet is attached to one side of a fireproof and breathable gypsum board as a base, and the contact surface between the composite boards is waterproofed. By coating with tape and applying dry outer wall material without using asphalt felt, we propose an outer wall structure that improves workability and prevents the wetting of the heat insulating material due to condensation resistance. is there.

[Structure of Invention]

An embodiment of an outer wall structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the outer wall structure, where 1 is a main pillar, 2 is a stud, 3 is an interior base plate, 4 is a furring strip, 5 is a composite plate, and is a breathable waterproof. It is a wide, large-sized plate composed of a sheet 6 (hereinafter, simply referred to as a waterproof sheet) and a gypsum board 7. As shown in FIG. 2, the composite plate 5 has L = 1800 mm and W = 900 mm as standard. Of course, L = 1500, 900, 600 mm, W = 450, 600 mm, etc. are optional. The waterproof sheet 6 is attached to one surface of the gypsum board 7 via an adhesive (not shown) to form the composite board 5, and its width and length are the same as those of the gypsum board 7. As the waterproof sheet 6, a polyethylene film, a sheet in which fibers are joined by heat and pressure (product name: Tyvek, DuPont),
Alternatively, a porous sheet obtained by mixing and stretching a thermoplastic resin (polyolefin such as polyethylene or polypropylene, or polyvinyl chloride, polyester, polyamide, etc.) with a metal oxide, a hydroxide or an inorganic compound is used. It is a sheet-like material that is water-impermeable, although it has properties. Further, the gypsum board 7 is a general-purpose product, and as shown in FIG. 2, both sides of the calcined gypsum 7a are bound by the board base paper 7b and integrally molded. Composite plate 5 attached via (not shown)
It is what More specifically, the gypsum board 7 has fireproofness, breathability (breathability), non-stretchability, heatproofness, coldproofing, and soundproofing. There is no composite plate 5. Reference numeral 8 is a waterproof tape, and as shown in FIG.
And adhesive 8b, which covers all the joints between the composite plates 5 formed when the composite plate 5 is completely stretched on the body, and prevents water leakage from the joints, and has adhesive strength, watertightness, and durability. It has weather resistance and conformability to the base.
The base material 8a is made of polyethylene foam, ether or ester polyurethane foam, vinyl chloride, polyethylene, Tetoron non-woven fabric, EPDM system,
The adhesive 8b is made of butyl rubber, synthetic rubber, or acrylic. Further, the waterproof sheet 8 includes one made of a metal such as an aluminum tape or an aluminum vapor deposition tape laminated with a polyethylene sheet, or an RA tape integrally formed with a polyester non-woven fabric and a special rubberized asphalt compound. Reference numeral 9 denotes a metal or ceramic siding board (hereinafter, simply referred to as a board), which is shown in FIG.
(U) is a metal board 9, which is formed integrally by binding a metal thin plate 9a and a sheet-like backing material 9b to a core material 9c made of a synthetic resin foam, an inorganic material, or the like. 5 (a) to (h) show a ceramic board 9, for example,
Pottery stone, feldspar, kaolinite, halosite, metahalosite, kibushi clay, frog eye clay, Shigaraki clay, chamotte, etc. are crushed and then kneaded with water and baked, or ALC type, It is made of concrete and ceramics. 10 is a heat insulating material, which is made of synthetic resin foam, glass wool, etc., and is mostly used in general houses.

Next, a method of constructing the outer wall structure according to the present invention will be described with reference to FIGS. 1 and 6. First, a composite plate 5 (thickness 9 mm x length L = 1800 mm, width W = 900 mm) as shown in Fig. 2 is placed on a body composed of main pillar 1, stud 2, furring strip 4, and heat insulating material (glass wool) 10. Are fixed to each other through the nails 11 with their side end surfaces 5a and 5b in contact with each other without any gap. Next, the waterproof tape 8 made of EPDM and butyl rubber is attached to the contact surfaces 5c of the composite plates 5 that have been stretched to cover all the contact surfaces 5c on the wall surface.
Next, the board 9 shown in FIG. 4 (d) is fixed on the composite plate 5 with nails 11 and the entire wall surface is covered by male and female fitting of the board 9. In addition, on the base part, a drainer,
An accessory and a caulking material are used for the windows, the projected corners, and the seams of the board 9.

[Other Examples]

What has been described above is one embodiment of the outer wall structure according to the present invention, and the composite plate 5 can be formed as shown in FIGS. 7 (a) to 7 (f). That is, (a) is a composite plate 5 in which recesses 12 of the same shape are formed at the edges in the longitudinal direction and the recesses 12 are connected to each other when the composite plate 5 is constructed, and (b) is a side end surface 5a, 5b (not shown) is a composite plate 5 in which a caulking material 13 is planted, and the caulking material 13 includes a hot-melt adhesive (including foamed to 2 to 5 times), rubber,
A synthetic resin-based packing material is attached with an adhesive, or a swellable water-absorbent resin.
Figures (c) to (e) show a composite plate 5 in which a flow groove 14 for an air cycle is formed on one side or both sides (not shown) of the composite plate 5 to further prevent the occurrence of dew condensation. This is a composite plate 5 in which the end of the plate 5 on the waterproof sheet 6 side is recessed by the thickness of the waterproof tape 8 to eliminate steps due to the waterproof tape after the composite plate 5 is applied. The board base paper 7b may be waterproofed. Further, as shown in FIG. 8, the furring strips 4 can be removed and used for lateral stretching. Of course, it is also possible to combine FIG. 4, FIG. 5, FIG. 7, FIG.

〔The invention's effect〕

As described above, according to the outer wall structure of the present invention, as described above,
Fire resistance can be greatly improved. Since the composite plate itself has breathability, no condensation occurs between the inside and outside of the room, and it is possible to prevent the heat insulating material (glass wool) from getting wet. By simply covering the contact surfaces of the composite plates with a waterproof tape, a waterproof base can be formed, and the use of asphalt felt can be eliminated. It can be a structure that is resistant to heat, cold, and sound. Since the waterproof sheet itself has air permeability, it does not impair the air permeability of the gypsum board. There are features such as.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of an outer wall structure according to the present invention, and FIGS. 2 and 3 are perspective views showing an example of a composite plate and a waterproof tape which are members of the outer wall structure according to the present invention. 4 (a) to 4 (u) are metal-based siding boards, FIGS. 5 (a) to 5 (h) are explanatory views showing other embodiments of the ceramic siding board, and FIG. 6 is a waterproof tape. Fig. 7 (a) to (f) are perspective views showing other embodiments of the composite plate, and Fig. 8 is another embodiment of the outer wall structure according to the present invention. It is sectional drawing which shows an example. 1 ... main pillar, 4 ... furniture, 5 ... composite board, 8 ... waterproof tape, 9 ... metal, or ceramic siding board.

Claims (1)

[Claims] 1. A composite plate integrally formed by adhering a breathable waterproof sheet on one surface of a gypsum board on the main pillar and stud, or on the furring strip, and directly contacting the four side end surfaces thereof. Along with fixing the sheet side to the outside, the contact surfaces of the composite plates are covered with a waterproof tape, and a metal or a dry outer wall material made of a ceramic siding board is mounted on the composite plates. The outer wall structure.