JP3813609B2 - Construction method of painted wall and painted roof - Google Patents

Description

  The present invention relates to a painted wall or coated roof that is lightweight and has non-combustible heat insulation, and a non-combustible heat-insulating composition, a painted wall / coated roof base sheet, and a fixture.

  In recent buildings, heat insulation performance is emphasized in order to save energy by forming a comfortable living space and reducing energy used for air conditioning. Conventionally, an inner heat insulating method and an outer heat insulating method have been used as heat insulating methods for an outer wall portion of a building. In addition, the inner heat insulation method and the outer heat insulation method mean, in the narrow sense, the case where the heat storage body is insulated like a concrete structure. Filling heat insulation (inner heat insulation), outer heat insulation when there is no heat storage body such as steel frame or wooden structure. Although used separately from (outer heat insulation), in the present invention, the filling heat insulating method and the narrowly defined inner heat insulating method are collectively referred to as the inner heat insulating method, and the outer heat insulating method and the narrowly defined outer heat insulating method are collectively referred to as the outer heat insulating method. . The inner heat insulation method is to place a heat insulating material between structural enclosures or indoors, and is usually filled with a fiber (such as glass wool) insulation material between the enclosures (between columns). There are many cases. This inner heat insulation construction method can reduce the construction cost for heat insulation because the price of the heat insulating material is low. However, there is a problem that condensation occurs when indoor air (humidity) flows into a wall cooled by outside air. For this reason, it is necessary to apply a moisture-proof treatment by applying an air-proof moisture-proof film to the interior surface of the wall so that the indoor air does not enter the wall, and as a result, the advantage from the construction cost has been reduced. In addition, in the inner heat insulating method, the heat insulating performance may not be sufficiently exhibited because the frame such as a pillar becomes a thermal bridge. Furthermore, since heat insulation cannot be continuously arranged with pillars, etc., construction technology is necessary to perform construction so that there are no gaps between the heat insulation and between the housings. It was easy to occur.

Therefore, in recent years, an outer heat insulation method having better heat insulation performance has been used. The outer heat insulating method is a method in which a heat insulating material is arranged on the outdoor side of the structural housing, and usually an outer covering method in which a plastic heat insulating plate material such as foamed plastic is stretched outside the housing.
However, since the heat insulating plate is fastened to the building frame by driving nails or the like from the surface of the plate, it is inevitable that the surface of the heat insulating plate is damaged at the head of the nail. In addition, since nails with a large diameter are used for fastening, the periphery of the nail penetration part on the back of the heat insulating plate may be damaged during construction, and in the worst case, the strength of the heat insulating plate itself may be reduced. Become. In addition, in the external construction method in which the heat insulating plate material is stretched outside the housing, it is inevitable that a seam is formed between the heat insulating plate materials, and there is a problem that the heat insulating effect is reduced by heat entering and exiting from the seam. Furthermore, many heat insulating plate materials are flammable, and there is a problem from the viewpoint of fire prevention measures.

  On the other hand, as an exterior wall, a painted wall represented by a mortar wall coated with so-called mortar, which is made by kneading a material containing sand as a main aggregate and cement and an admixture with water, has been used for a long time ( Patent Document 1). However, conventional coated walls are intended for a good surface finish and are not intended for heat insulation. Even if you try to get a heat insulation effect, you can't apply mortar thickly, or even if it is thickly applied, it becomes a very fragile wall that easily peels off by vibration due to its own weight.

  In the conventional wet method, a lath felt or base sheet is stretched on a wall base plate, a metal lath is fixed on it with a tacker, and a mortar coating finish is applied on it after rubbing it as a base for the coating wall. is doing. However, the metal lath was affected by the surroundings of moisture and water after the painted wall was constructed, and there was a problem that the painted wall floated off due to the occurrence of rust. In addition, base materials such as rasfelt, base sheet, and metal lath do not have a heat insulating effect, and the heat insulating performance is not considered in the same manner as mortar as a coating material.

JP-A-6-256057

  An object of the present invention is to provide a painted wall / painted roof base having a heat insulating effect and having a waterproof property that does not deteriorate even when the painted wall is applied due to moisture or water.

The present inventor has a coating wall that has been used for a long time and has no joints unlike the mainstream heat insulating plate material in recent years. Attention was paid to this, and an attempt was made to develop a heat insulating composition for painted walls. As a result, it has been found that a composition comprising pearlite, cement, adhesive powder resin, and optionally fired diatomaceous earth has excellent heat insulating properties. Furthermore, the unexpected knowledge that such a composition also has nonflammability was obtained. Therefore, the heat insulating material using the composition has a heat insulating effect superior to the external heat insulating using the heat insulating plate material, and further eliminates the combustibility that was a weak point of the conventional heat insulating plate material.
Further, the composition comprising the pearlite, cement, adhesive powder resin, and optionally fired diatomaceous earth is light because it does not contain sand in the main aggregate unlike the conventional mortar wall. Therefore, since it can be applied thicker than the conventional mortar wall, the heat insulation effect can be further enhanced, and it is not easily peeled off by vibration.

  The present inventor has also studied the coating wall base. As described above, the mellarus that is usually used as the base of the mortar wall is easily rusted and has no heat insulating effect. Therefore, various investigations were made on the paint wall base that has a heat insulating effect and has a waterproof property that does not deteriorate due to moisture or water around the paint wall. It has been found that a coated wall base sheet in which a water-absorbing nonwoven fabric is laminated together has the properties of heat insulation, stability to water and moisture, and waterproofness.

Furthermore, the present inventor has studied that the wall of the present invention is not easily separated even by vibrations such as an earthquake. As a result, as a fixture for attaching the base of the coating wall to the housing, it has a mounting hole, the thickness of the mounting hole in the penetrating direction is 9 to 20 mm, and is a surface perpendicular to the penetrating direction of the mounting hole. 3～15Cm 2 the area of the surface in contact with the ^fixture the area of face-to-face, characterized in that a 5 to 20 cm ² (hereinafter referred to. as "fixed cone") the use of non-combustible heat-insulating the present invention It has been found that since the composition hardens together with the fixed cone, it is more firmly held in the housing and does not easily peel off due to vibrations such as earthquakes.
The inventor has further studied and completed the present invention.

That is, the present invention
(1) Incombustible heat insulating composition comprising pearlite, cement, adhesive powder resin, and optionally baked diatomaceous earth,
(2) An incombustible heat insulating material obtained by adding water to the composition according to (1) and curing it,
(3) Painted wall / painted roof base sheet, characterized in that an aluminum vapor-deposited film is laminated on one side of the foamed resin sheet and a water-absorbing nonwoven fabric is laminated on the other side,
(4) A fixture for attaching the base of a painted wall / painted roof to a housing, having a mounting hole, the thickness of the mounting hole in the penetrating direction is 9 to 20 mm, and perpendicular to the penetrating direction of the mounting hole fixture with a surface area of the surface in contact with the base, characterized in that 3~15cm ^2, the area of the face is 5 to 20 cm ^2,
(5) The painted wall / painted roof base sheet according to (3) and a coated net made of chemical fiber are attached to the housing by the fixing device according to (4). Walls, painted roof base, and
(6) The wall or roof, wherein the nonflammable heat insulating material according to (2) is laminated on the painted wall / coated roof base according to (5),
About.

The non-combustible heat insulating material of the present invention exhibits excellent heat insulating properties, and further, since it is lighter than conventional coating materials and can be thickly coated, the heat insulating effect can be further enhanced. By performing the outer heat insulation in which the heat insulating material is disposed on the outdoor side of the structural housing using the non-combustible heat insulating material of the present invention, it is not always necessary to arrange the heat insulating material between the structural housings or on the indoor side. And the construction of the outer heat insulation has less variation in construction accuracy by the contractor than the construction of the inner heat insulation, and is excellent in workability. In particular, since the non-combustible heat insulating composition of the present invention is a coating material having a good water-drawing state, it is excellent in workability even compared to conventional mortar.
Furthermore, the non-combustible heat insulating material of the present invention has a higher heat insulating effect because there is no seam, unlike the conventional outer heat insulating material using a heat insulating plate. Furthermore, since the heat insulating material of the present invention is also nonflammable, it is excellent in terms of fire resistance.

The incombustible heat insulating material of the present invention can be used not only as an outer wall but also as an inner wall. By using the non-combustible heat insulating material of the present invention for an RC inner wall, an inner wall lathboard surface, a paste-finished wall material, or a cloth-coated base material, it can contribute to heat insulation of a building. Furthermore, since the non-combustible heat insulating material of the present invention also has water absorption, it is effective for preventing condensation.
Applying the heat insulating material of the present invention to the roof base plate and forming a heat insulating layer outside the roof surface is effective for heat insulation on the roof surface and prevention of condensation on the attic.

  Unlike the base materials such as general-purpose lath felt, base sheet, and metal lath, the coated wall / coated roof base sheet of the present invention has heat insulation properties. Therefore, the heat insulation effect can be further improved by combining with the incombustible heat insulating material of the present invention. Unlike the general-purpose metal lath, the coated wall / coated roof base sheet of the present invention is stable without being deteriorated by water or moisture, so that defects due to internal rust can be eliminated. Further, the coated wall / coated roof base sheet of the present invention is waterproofed by an aluminum vapor-deposited film to prevent water from entering, and has a moisture absorbing effect by a water-absorbing nonwoven fabric. By using the coated wall / coated roof base sheet of the present invention, it is possible to prevent cracks from occurring on the surface of the coating material, particularly the non-combustible heat insulating material of the present invention.

By using a coating net between the coated wall / painted roof base sheet of the present invention and the coating material, peeling of the coating material can be prevented. In addition, since the coated net is made of chemical fibers that are not easily affected by water or moisture, there is no risk of defects due to internal rust. Furthermore, since the coated net is a material that is easier to handle than the metal lath, safety is improved.
Since the non-combustible heat insulating material of the present invention is cured integrally with the fixed cone by using the fixed cone of the present invention when the painted wall / coated roof base sheet and coated net of the present invention are attached to the casing, It is effective in preventing earthquakes and preventing flaking and cracking. The fixed cone of the present invention can also be used in place of conventional metal lath reinforced bone reinforcement. As a result, work performance is improved, and the seismic resistance and impact resistance of the coated walls can be increased.

The incombustible heat-insulating composition of the present invention comprises pearlite, cement, adhesive powder resin, and optionally calcined diatomaceous earth. Each component is described in detail below.
Examples of pearlite include nacreous pearlite fired from nacre, obsidian pearlite fired from obsidian, and the like. Any of these may be used in the present invention, or a combination thereof may be used. Among them, in the present invention, it is preferable to use pearlite specified in JIS A 5007, and it is more preferable to use obsidian pearlite. The average particle size of pearlite is about 3 mm or less, preferably less than about 0.3 mm.

  As the cement, for example, ordinary Portland cement, early-strength Portland cement or Portland cement such as moderately heated Portland cement, mixed cement such as blast furnace cement, rapid hardening cement, or the like can be used. These may be used alone or in combination. In the present invention, fly ash cement which is advantageous in terms of cost can also be used. Among them, it is preferable to use ordinary Portland cement in the present invention.

  The blending ratio of cement and pearlite is about 40 to 200 parts by weight of pearlite, preferably about 50 to 150 parts by weight, more preferably about 60 to 130 parts by weight with respect to 100 parts by weight of cement. It is preferable that it is a grade. Further, the total weight of cement and pearlite is preferably about 90 to 99.9% by weight, preferably about 95 to 99.9% by weight of the total composition.

The adhesive powder resin is not particularly limited as long as it is a powdery resin having adhesive force, and a known resin used in the technical field may be used. The adhesive powder resin is preferably excellent in alkali resistance. Specific examples of the adhesive powder resin include polymers and copolymers such as vinyl acetate, vinyl versatate, ethylene, butadiene, acrylic ester, styrene, vinylidene chloride, and vinyl chloride. -Vinyl acetate copolymer, vinyl acetate polymer, acrylate polymer, vinylidene chloride polymer and vinyl chloride polymer are preferred, and ethylene-vinyl acetate copolymer is more preferred.
The compounding amount of the adhesive powder resin is about 5% by weight or less, preferably about 3% by weight or less, more preferably about 1.5% by weight or less of the entire composition.

  The calcined diatomaceous earth may or may not be blended in the incombustible heat insulating composition of the present invention. When the baked diatomaceous earth is blended, the blending amount is about 15% by weight or less, preferably about 10% by weight or less, more preferably about 5% by weight or less of the entire composition.

  The incombustible heat-insulating composition of the present invention is preferably lightweight in order to enable thick coating. Specifically, the specific gravity is about 0.3 to 2.0, preferably about 0.5 to 1.5. It is suitable that the degree is about 0.6 to 1.1.

The non-combustible heat insulating material according to the present invention can be obtained by adding water to the non-combustible heat-insulating composition of the present invention described above, kneading and forming into a desired shape and then curing. The amount of water added varies depending on the use of the incombustible heat insulating material according to the present invention and the temperature and humidity at the time of construction, but it cannot be generally stated, but about 2 to 6 L with respect to 10 kg of the incombustible heat insulating composition of the present invention, About 3-5L is preferable.
The incombustible heat insulating material of the present invention has, for example, a thermal conductivity of about 0.3 W / m · K or less, more preferably about 0.1 to 0.2 W / m · K, still more preferably about 0.00 as an index of heat insulation performance. It is preferably 12 to 0.18 W / m · K.

The non-combustible heat insulating material of the present invention is preferably a non-combustible material described in the Building Standard Law. More specifically, it is preferable that the following standards described in Article 108-2 of the Building Standard Law Enforcement Ordinance are satisfied.
“When building materials are heated by fire in a normal fire, 20 minutes after the start of heating, the following items (for items used for the exterior finishing of buildings, No. 1 and No. 2) The requirements listed are met.
1. It must not burn.
2. It shall not cause deformation, melting, cracking or other damage harmful to fire prevention.
3. Do not generate smoke or gas harmful to evacuation. "

  The non-combustible heat insulating material of the present invention can be used for any application as long as the heat insulating property or non-combustible property is required. For example, it can be used for building structures such as walls or roofs. The non-combustible heat insulating material of the present invention can also be used to wrap ducts that require heat insulation, such as hot water pipes, hot air ducts, cooling ducts, and refrigeration hoses. In addition, you may use for household goods, such as housing | casings, such as electrical appliances, and a cup.

The non-combustible heat insulating material of the present invention is particularly preferably used for a building structure such as a wall or a roof. Since the non-combustible heat insulating material of the present invention is lightweight, it is characterized in that it can be applied thickly. On the wall or roof provided with the non-combustible heat insulating material of the present invention, the thickness of the non-combustible heat insulating material of the present invention is about 10 to 50 mm, preferably It is preferable that the thickness is about 15 mm to 40 mm, more preferably about 20 mm to 40 mm.
Since the incombustible heat insulating material of the present invention has hygroscopicity, the wall or roof provided with the incombustible heat insulating material of the present invention is effective for preventing condensation.

  The wall or roof provided with the non-combustible heat insulating material of the present invention has a temperature of about 15 ° C. to 50 ° C., preferably about 20 ° C. to 35 ° C. in a high temperature environment where the outside air temperature is 25 ° C. or more and 38 ° C. or less as an index of heat insulation performance. It is preferable to have the heat shielding effect. Here, the heat shielding effect refers to the difference between the outer surface temperature of the wall or roof and the indoor surface temperature of the wall or roof. For example, even if the outer surface of the wall or the roof becomes about 40 ° C. to 80 ° C. due to solar radiation or the like, it is preferable that the indoor surface of the wall or the roof is maintained at about 25 ° C. to 35 ° C. Further, in a low temperature environment where the outside air temperature is −8 ° C. or more and 10 ° C. or less, it is preferable to have a heat shielding effect of about 10 ° C. to 35 ° C., preferably about 15 to 25 ° C. For example, even if the outer surface of the wall or roof is about −35 ° C. to 0 ° C., the interior surface of the wall or roof is preferably maintained at about 1 ° C. to 10 ° C.

The wall or roof provided with the incombustible heat insulating material of the present invention can be constructed in the same manner as the mortar-coated wall or roof, except that the mortar replaces the incombustible heat insulating material of the present invention.
However, in order to enhance the heat insulation effect, it is preferable to use the coated wall / coated roof base sheet of the present invention described in detail below, instead of the metal lath that is usually used for the coating base. The coated wall / coated roof base sheet of the present invention can provide a higher heat insulating effect when used together with the non-combustible heat insulating material of the present invention, but may be used for a base of a conventionally known painted wall. By using the painted wall / coated roof base sheet of the present invention, there is also an advantage that the occurrence of surface cracks in the painted wall is reduced.

The coated wall / coated roof base sheet of the present invention has an aluminum vapor-deposited film laminated on one side of a foamed resin sheet and a water-absorbing nonwoven fabric laminated on the other side.
The foamed resin sheet preferably has a heat insulating effect, and examples thereof include a foamed polyethylene sheet, a foamed polyvinyl chloride sheet, and a foamed polyurethane sheet. Among these, it is preferable to use a foamed polyethylene sheet because toxic gas is not discharged during combustion. As the foamed polyethylene sheet, a closed-cell foamed polyethylene sheet or the like can be used. The thickness of the foamed resin sheet is not particularly limited, but is about 1 to 6 mm, preferably about 1 to 4 mm.

  The water-absorbing non-woven fabric is not particularly limited as long as it is a non-woven fabric having water absorption, and a known one may be used. For example, the nonwoven fabric containing rayon with high water absorption is mentioned. Of these, a nonwoven fabric made of rayon and polyester is preferred. In addition, a nonwoven fabric in which hydrophilic fibers and hydrophobic fibers are blended and integrated (Japanese Patent Publication No. Sho 54-23507, Japanese Utility Model Publication No. 48-43230), and a water-absorbing nonwoven fabric in which hydrophobic fibers are heat-bonded composite fibers (Japanese Patent Publication No. No. 63-39703), a nonwoven fabric impregnated with a hydrophilic polymer (Japanese Patent Publication No. 1-35841), a nonwoven fabric mixed with a water-absorbing substance (Japanese Patent Publication No. 3-25536), hydrophilic fiber A nonwoven fabric (Japanese Patent Laid-Open No. Hei 5-156558), which is a composite nonwoven fabric composed of a nonwoven fabric layer and a hydrophobic fiber nonwoven fabric layer, and which uses delicate polyolefin fibers for the hydrophobic fiber nonwoven fabric layer can be used. Although the thickness of a water absorptive nonwoven fabric is not specifically limited, About 0.1-1 mm, Preferably it is about 0.2-0.5 mm.

  In the present invention, it is preferable to sandwich a coating net between the coated wall / coated roof base sheet of the present invention and the coating material. By doing so, the coating material is hardly peeled off, and the walls and the roof are not easily deformed. The coating net is woven with coarse threads with thick threads. The shape of the coating net is not particularly limited, but it is preferable that both warp and weft have an interval of about 5 to 20 mm, preferably about 5 to 15 mm. The thickness of the thread constituting the coating net is not particularly limited as long as it can achieve the purpose of preventing peeling of the coating material and preventing deformation of walls and roofs, but is about 0.5 to 3 mm, preferably about 1 About 2 mm is preferable. The coating net is preferably composed of chemical fibers. This is because chemical fibers have higher tensile strength than natural fibers, are chemically stable and hardly corroded, and are excellent in durability. The chemical fiber is not particularly limited, and a known fiber can be used, and examples thereof include a polyamide fiber, a polyolefin fiber, a polyurethane fiber, and a glass fiber.

In order to attach the coated wall / coated roof base sheet of the present invention to the housing, a known method such as using screws or nails may be used. However, in order to more effectively prevent peeling due to vibrations such as earthquakes, it is preferable to use the fixed cone of the present invention described in detail below.
The fixed cone of the present invention has a mounting hole, the thickness of the mounting hole in the through direction is about 9 to 20 mm, and is a surface that is perpendicular to the through direction of the hole and is in contact with the base (hereinafter referred to as a mounting back surface). Is about 3 to 15 cm ² , and the area of the opposite surface (hereinafter referred to as the surface) is about 5 to ²⁰ cm ² . If this fixed cone is used, the non-combustible heat insulating composition of the present invention is cured integrally with the fixed cone, so that the non-combustible heat insulating material of the present invention is more firmly held in the casing. The fixed cone of the present invention is used not only when the painted wall / painted roof base sheet of the present invention is attached to the housing, but also when attaching a conventionally used painted wall / painted roof base such as metal lath to the housing. Also good.

  The shape and the like of the fixed cone of the present invention are not particularly limited as long as it has the above-described characteristics, but it is preferable that the mounting back surface, the front surface, and the side surface are polygonal. This is because the coating material is easily caught. The mounting hole is preferably provided in the center of the front surface and the back surface of the mounting surface, preferably in the center. The diameter of the mounting hole may be appropriately selected according to the size of a screw or nail for mounting the fixed cone. As the shape of the fixed cone of the present invention, specifically, the shape described in FIG. In particular, as shown in FIG. 7, a shape in which the mounting back surface and the front surface are hexagonal and the side surfaces are triangular is preferable.

  Although it does not specifically limit as a material of the fixed cone of this invention, For example, a metal, a synthetic resin, the nonflammable heat insulating composition of this invention, etc. are mentioned. Examples of the metal include iron. Examples of the synthetic resin include polyester, polyethylene, polypropylene, polyethylene terephthalate, acrylic, and polycarbonate. However, the fixed cone of the present invention is preferably made of the non-combustible heat insulating composition of the present invention.

A preferred embodiment of the present invention will be described with reference to the drawings.
The coated wall base sheet 1 is stretched horizontally on the wall base plate surface of the outer wall from the bottom to the top to form a lap joint, and is tensioned with a tacker. The opening is cut with scissors or a cutter knife, and caulking is applied to the opening joint. The painted wall base sheet 1 is a sheet-like material in which an aluminum vapor-deposited film is laminated on one surface of a foamed polyethylene sheet and a water-absorbing nonwoven fabric containing rayon is laminated on the other surface. The coated wall base sheet 1 is attached so that the aluminum vapor deposition film is in contact with the wall base plate surface of the outer wall. As shown in FIG. 1, a circular pet 2 is attached to the coating wall base sheet 1 at a fixed cone mounting position. The circular pet 2 is for preventing water and heat from entering and leaving between the screw or a nail inserted into the housing for attaching the fixed cone and the housing, and further improving the heat insulating effect and the waterproof effect. . This circular pet 2 may or may not be attached. The circular pet may be made of any material as long as it functions as a packing between the fixed cone and the housing. Examples of the material for the circular pet include rubber or synthetic resin typified by foaming resin such as closed-cell polyethylene.

After the coating wall base sheet 1 is lifted, the coating net 3 is pulled down from the upper part to the lower part and is tacked with a lap joint.
Next, the fixed cone 4 is screwed or nailed onto the circular pet 2, and the coating wall base sheet 1 and the coating net 3 are firmly attached to the wall base plate to complete the non-laser coating wall base. The mounting pitch of the fixed cone 4 is not particularly limited as long as the coating base sheet or the coating net can be mounted on the housing and can prevent the coating material from peeling off, but is about 100 to 300 mm, preferably about 200 to It is about 250 mm.

A specified amount of water is added to the incombustible heat insulating composition of the present invention, and kneaded with a mixer to prepare a coating material. The above-mentioned coating material is undercoated on the finished non-laser coating wall base surface, and the surface is prepared with a mallet during watering to improve the adhesion of the next topcoat. After finishing the dry state of the undercoat that can be overcoated, apply the topcoat and finish with a hammer. The time required for the incombustible heat-insulating composition to cure varies depending on the temperature or humidity at the time of construction and cannot be generally specified, but is about 8 to 36 hours, preferably about 12 to 24 hours. Since the curing time is shorter than that of a conventional coating material, it can proceed to the next process quickly, leading to a shortened construction period. The incombustible heat insulating composition of the present invention may be applied once as well as twice as described above.
The finished outer wall may be further sprayed. As the spray finish, it is preferable to perform an elastic spray excellent in waterproofness.

  Although the outer wall has been described in detail above, the non-combustible heat insulating material of the present invention can also be used for the inner wall. By thinly coating the lath board to about 10 to 15 mm and finishing it with a hammer, it becomes a base material for a paste-finished wall material or cloth. This can be applied not only to wooden buildings but also to RC buildings.

  Furthermore, the incombustible heat insulating material of the present invention can also be used for a roof. For example, it is effective for heat insulation of the ceiling and prevention of dew condensation on the back of the roof by applying it on a special perforated road plate in wooden construction. By providing an airway on the roof to form a double structure, the heat insulation effect can be further enhanced. Specifically, for example, a conventional roofing may be performed by attaching a nonflammable heat insulating material of the present invention firmly to a tree that is an airway on a tree that is an airway, and floating and sticking a road plate on it.

(Example 1 Preparation and performance test of non-combustible heat insulating material of the present invention)
Ordinary Portland cement (JIS R 5210) 44.5 parts by weight Obsidian perlite (JIS A 5007) 41.0 parts by weight (particle diameter 0.85 mm or less)
Obsidian perlite (JIS A 5007) 13.5 parts by weight (particle diameter 0.85 to 1.23 mm)
Adhesive powder resin (vinyl acetate / ethylene copolymer resin) 1.0 part by weight 42.5 of water is added to 12.5 kg of the incombustible heat-insulating composition of the present invention containing the above components in the above proportions, and kneaded thoroughly with a mixer. The incombustible heat insulating material of the present invention was prepared by molding into an 18 mm flat plate and drying.
The obtained non-combustible heat insulating material was very light with a specific gravity of 0.85. Moreover, the heat conductivity of this incombustible heat insulating material was 0.15 W / m * K, and it fully functioned as a heat insulating material. Furthermore, the obtained non-combustible heat insulating material was certified by the Ministry of Land, Infrastructure, Transport and Tourism as a non-combustible material that complies with the provisions of Article 2-9 of the Building Standards Act and Article 108-2 of the Enforcement Ordinance of the same law Number; NM-0518).

Example 2 Interlaminar Deformation Followability Test of Painted Wall According to the Present Invention
As shown in FIGS. 5 and 6, the coated plywood base shown in FIG. 1 is applied to a structural plywood wooden frame with a distance between pillars of 1820 mm and a distance between horizontal members and foundations of 2767.5 mm as shown in FIGS. A coating material obtained by adding 5 L of water to 18000 cm ³ of the non-combustible heat insulating composition B of the invention and kneading, and further kneading 4.8 L of water to the non-combustible heat insulating composition C 16500 cm ³ of the present invention. It is a painted wall with a coating material overcoated. The details of the constituent materials of the painted wall are shown in the table below. Moreover, the fixed cone was made into the shape shown in FIG.

The volume ratio of the constituent materials of the non-combustible heat insulating compositions A, B and C is shown in the following table. As the adhesive powder resin, vinyl acetate / ethylene copolymer resin was used.

  As shown in FIG. 8, the test was performed by applying a horizontal force to the horizontal member of the test specimen using a servo actuator after fixing the steel base and the base of the test specimen fixed with three M16 bolts. It was. The loading path has six predetermined interlayer deformation angles of ± 1/450 rad, ± 1/300 rad, ± 1/200 rad, ± 1/150 rad, ± 1/120 rad, ± 1/100 rad, and a predetermined interlayer between each step. After static loading up to the deformation angle, dynamic loading at the same interlayer deformation angle was performed for 60 seconds. The following table shows the vibration frequency during dynamic loading.

  Even when static loading and dynamic loading at any interlayer deformation angle were applied, the specimen did not crack, peel, drop off, or the like.

(Example 3 Compression test of coated wall according to the present invention)
A mortar compression test was performed on the primer and topcoat materials used in the test body of Example 2. The results are shown in the table below.

(Example 4) Shear test of fixing part of coated wall according to the present invention
As shown in FIG. 9, the test body is constructed by applying 300 mm square and 35 mm thick coated walls on both sides of a wooden bearing wall equivalent material composed of a structural plywood and wooden studs. The painted wall is the same as the painted wall of Example 2 except that the coating material made of the incombustible heat insulating composition C is not overcoated.
In the test, as shown in FIG. 10, the lower surfaces of the coated walls on both sides were supported by a steel cradle, and the top of the test body was pressurized with a monotonically increasing load via a pressure plate. A 2000 kN universal testing machine was used for applying force, and a load cell having a maximum capacity of 20 kN was used for detecting the load value.

  The above test was performed three times, and the maximum load was determined for each of the test bodies by the breakage and pull-out of the tapping screw shaft. The maximum load per tapping screw was 1.09 kN for the first time, 1.19 kN for the second time, 1.00 kN for the third time, and the average value was 1.09 kN.

It is a block diagram of a non-laser coating wall base. It is the figure of a fixed cone made from a synthetic resin, and an attachment sectional view. It is the figure and attachment sectional view of the fixed cone (fireproof cone) made with the nonflammable heat insulating composition of the present invention. It is a figure and attachment sectional view of a metal fixed cone. It is a figure which shows the shape and dimension of the test body used in Example 2 "The interlaminar deformation followability test of the coating wall based on this invention." It is a figure which shows the attachment details of the structural plywood of FIG. FIG. 4 is a diagram showing the shape and dimensions of a fixed cone used in the test body of Example 2. FIG. 4 is a diagram showing a test apparatus of Example 2. It is a figure which shows the shape and dimension of the test body used in Example 4 "the shear test of the fixing part of the coating wall based on this invention". FIG. 6 is a diagram showing a test apparatus of Example 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coated wall base sheet 2 Circular pet 3 Coated net 4 Fixed cone 5 Cone brim hole 6 Mounting hole 7 Cone brim

Claims (3)

It has an attachment hole, the thickness in the penetration direction of the attachment hole is 9 to ²⁰ mm, the area perpendicular to the penetration direction of the attachment hole and in contact with the base is 3 to 15 cm ² , and the area of the facing area is 5 to 5 mm. 20cm are ^two der, and the area of the surface in contact with the base by using the smaller fixture than the area of the facing mounting the coating walls, paint the roof bed sheet base plate, the mounting pitch of the fixture during the 100~300mm and then, without further mounting between the lath member and the coating with a net coating walls, paint the roof bed sheets and coating materials, characterized in that smearing beyond 20mm the Nurizai the underlying surface with a thickness of 40mm Construction method of painted walls and painted roofs. 2. The method according to claim 1, wherein the painted wall / coated roof base sheet is a sheet in which an aluminum vapor-deposited film is laminated on one surface of a foamed resin sheet and a water-absorbing nonwoven fabric is laminated on the other surface. . The method according to claim 1 or 2, wherein a non-combustible heat-insulating composition comprising pearlite, cement, adhesive powder resin, and optionally fired diatomaceous earth is used as the coating material.