JPH08284363A - Building substrate material and construction method of wall structure using the material - Google Patents

Abstract

PURPOSE: To enhance bonding strength to a mortar wall structure in the case of enhancing structural strength of an exterior wall and reducing a construction period and executing mortar work in a house or enhance bonding strength between siding and wall structure in the case of siding placement. CONSTITUTION: A building substrate material 1 which forms a beveled area 1b on a butt end edge on the upper end of a base board 1a and forms a waterproofing coating area on the whole surface including the beveled area 1b on the butt end edge on the upper end, is fixed with structural materials 4, such as posts and studs and then a waterproof treatment material 3 is filled up in a V-shaped groove produced on the butt-jointed area 1b on the building substrate material 1. The sidings are further fixed with the surfaces or mortar 6 is applied thereto.

Description

Detailed Description of the Invention

[0001]

[Industrial application field] The present invention relates to an exterior wall structure in a house and a construction method thereof.

[0002]

[Prior art and its problems] In the case of mortar coating, after applying wood lapping and plywood and underlaying of various boards on structural materials such as pillars and studs in houses, use waterproof paper with a tucker. Asphalt felt is generally used as the waterproof paper to be fastened and fixed.

Next, a mortar coating base material for fastening and fixing a mortar coating base material on waterproof paper with a tacker or a nail is a metal lath, a wire lath, a metal working one-side lath, a metal plate perforated lath, or the like. Special laths, lath sheets, etc. are used. They are called the mortar foundation lath construction method, and after the foundation material for mortar coating is applied, the surface thereof is usually coated with mortar.

Mortar is entwined with a mortar coating base material, but the mortar coating base material is only fixed to a lath or underlay on a structural material with a tacker or a nail through a waterproof paper. , It was not firmly integrated with the lath or the underlay, in other words, it was not integrated with the structural material and had a low adhesion.

In the case of siding upholstery, the siding material is nailed and fixed after the furring work is performed on the structural material such as the pillars and studs in the house. As in the case of mortar coating, construction of waterproof paper was necessary and furring construction was required, which required a long construction period.

[0006]

[Technical Means] A construction base material 1 having a chamfered portion 1b formed on a top edge of a substrate 1a and a waterproof coating layer 1c formed on the entire surface including the chamfered portion 1b at the top edge of the substrate is used as a pillar in a house. After fixing on the structural material 4 such as studs,

The V-shaped groove 2 formed in the abutting portion 1b of the building base material 1 is filled with the waterproofing material 3 and the siding is fixed on the surface thereof, or the building base material coated with mortar 6 is used. Construction method of the wall structure used.

[0008]

[Description of Configuration] Plywood, fiberboard, particle board, laminated veneer, laminated wood, etc. are used as the substrate 1a for forming the chamfered portion 1b at the upper edge of the substrate 1a, and the upper edge of the substrate is cut. The chamfered portion is formed by processing, cutting or the like. If necessary, the substrate 1a may be subjected to an edge process, and may be subjected to actual processing such as real fruit.

The chamfered portion 1b is preferably formed so that when the substrates 1a are abutted against each other, the groove formed in the abutted portion 1b becomes the V-shaped groove 2. Not only the V-shaped groove 2 but also a U-shaped groove, a U-shaped groove, or an inverted trapezoidal groove does not cause any problem, but the minimum use of the waterproofing material 3 filled in the groove 2 during construction of the construction base material. The V-shaped groove is the most effective shape in terms of amount. A waterproof coating layer 1c is formed on the entire front surface including the chamfered portion 1b of the substrate 1a having the chamfered portion 1b formed on the upper edge of the wood.

The waterproof coating layer 1c is made of NBR, SBR, MBR
A rubber latex such as the above, a synthetic resin such as an epoxy resin, an acrylic resin, a vinyl acetate resin, an ethylene vinyl acetate resin or the like is applied alone or an arbitrary mixture is applied, followed by drying and formation. The waterproof coating layer 1c prevents water absorption from the surface side and improves the adhesion with the mortar and the waterproofing material 3. The waterproof coating layer 1c is made of sand, talc, or a mixture of rubber latex and synthetic resin alone or in an arbitrary mixture.
It may be formed by mixing and applying aggregates such as calcium carbonate and alumina.

Aggregate may be mixed in the waterproof coating layer 1c, and irregularities due to the aggregate may be formed on the surface thereof. Waterproof coating layer 1
For c, rubber latex or synthetic resin may be applied alone or after an arbitrary mixture is applied, and then an aggregate such as sand, talc, calcium carbonate, or alumina may be sprinkled on the surface and dried to form a rough surface on the back surface. Aggregate may be applied to the surface of the waterproof coating layer 1c, and irregularities due to the aggregate may be formed on the surface.

The surface area of the waterproof coating layer 1c having the irregularities formed by the aggregate is increased, and the anchoring effect further improves the adhesion to the mortar and the waterproofing material 3. In this way, the chamfered portion 1 is attached to the upper edge of the substrate 1a.
b was formed, and the architectural base material 1 was obtained in which the waterproof coating layer 1c was formed on the entire front surface including the chamfered portion at the top edge of the wood.
In the case of mortar coating as a wall structure using the obtained building base material 1, the building base material 1 is butt-fixed with a butt on a structural material 4 such as a pillar or a stud in a house. .

Next, the V-shaped groove 2 formed at the abutting portion of the building base material 1 is filled with the waterproof material 3. As the waterproofing material 3, synthetic resin such as acrylic resin, urethane resin, modified silicone resin or polyurethane resin, or rubber based material such as SBR or butyl rubber is used. After the waterproofing material 3 is filled in the V-shaped groove 2 formed in the abutting portion of the building base material 1, the mortar coating base material 5 is fixed to the surface thereof.

The mortar coating base material 5 is a metal lath,
A wire lath, a metal plate perforated lath, or the like, in which mortar to be applied later is directly contacted with the waterproof coating layer 1c on the surface of the building base material 1, is used. The base material 5 for mortar coating is fixed by fastening with a tacker or a nail. After fixing the base material 5 for mortar application, mortar 6 is applied on the surface. The mortar coating is carried out by a conventional method and is dried to form a wall surface.

Further, in the case of siding upholstery as a wall structure using the obtained building base material 1, after fixing the building base and filling the joint portion of the waterproofing material as in the case of mortar coating. , Fix the siding material with nailing, and apply joint treatment to the joint portion of the siding material. The fixed joint treatment of the siding material is performed by a commonly used method to form the wall surface.

In this way, the chamfered portion 1b is formed on the upper edge wood edge board of the substrate 1a, and the waterproof coating layer 1c is formed on the entire surface including the chamfered edge board 1b of the upper edge wood edge board. A wall structure consisting of mortar coating using siding and siding material upholstery was obtained.

[0017]

The chamfered portion 1b is formed at the top edge of the wood and the waterproof coating layer 1c is provided on the entire front surface including the chamfered portion 1b, which is a structural base material 4 such as a pillar or a stud. Since the V-shaped groove 2 formed at the abutting portion of the building base material 1 is filled with the waterproofing material 3 while being directly fixed to the building base material 1, the building base material 1 acts as a bracing to increase the structural strength. Wall is constructed. Therefore, it is not necessary to apply waterproof paper and furring, and the construction period can be shortened.

Further, the waterproof property of the waterproof coating layer 1c and the waterproofing material 3 is improved. Further, by improving the adhesion between the waterproof coating layer 1c and the mortar, the building base material 1 and the mortar 6
It is integrated with and does not come off. Also in the case of siding tension, the adhesion strength between the siding and the wall structure is large.

[Brief description of drawings]

FIG. 1 is a plan view of a wall structure of the present invention,

[Explanation of symbols]

1: Building base material, 1a: substrate, 1b: chamfered part, I
c: waterproof coating layer, 2: V-shaped groove, 3: waterproof material, 4: structural material, 5: mortar coating base material, 6: mortar.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical display location E04B 2/56 611 E04B 2/56 611C 622 622C 622H 644 644D 644B E04F 13/04 107 8913-2E E04F 13/04 107

Claims (5)

[Claims] 1. A chamfered portion is formed on a top edge of a substrate,
A base material for construction, characterized in that a waterproof coating layer is formed on the entire front surface including the chamfered portion at the top edge of the wood. 2. The building base material according to claim 1, wherein aggregate is mixed into the waterproof coating layer, and irregularities are formed on the surface of the aggregate. 3. The building base material according to claim 1, wherein an aggregate is applied to the surface of the waterproof coating layer, and irregularities due to the aggregate are formed on the surface. 4. A chamfered portion is formed on an upper edge of the substrate,
After fixing the architectural base material with the waterproof coating layer formed on the entire surface including the chamfered part of the upper edge of the wood edge on the structural material such as columns and studs in the house, V that occurs at the butt part of the architectural base material A method for constructing a wall structure that uses a building base material with a mortar coating after filling the groove with a waterproof material and then fixing the mortar coating base material on the surface. 5. A chamfered portion is formed at the upper edge of the substrate,
After fixing the building base material with the waterproof coating layer formed on the entire surface including the chamfered part of the upper edge of the wood edge on the structural material such as the pillars and studs in the house, the V generated at the abutting part of the building base material A construction method for a wall structure that uses a foundation material for construction, in which the groove is filled with waterproof material and then siding is fixed on the surface.