JPH04134308U - Fire-resistant insulation panels for wooden buildings and wall structures of wooden buildings - Google Patents

Abstract

(57) [Summary] [Constitution] A heat insulating layer formed by extrusion molding of expanded polystyrene, and a vinyl chloride resin or chlorinated vinyl chloride resin formed on the front and back sides of this heat insulating layer containing an inorganic filler. It is characterized by consisting of two fireproof insulation layers made of a semi-nonflammable or higher material made of foam as an ingredient, and a mortar layer provided on one side of these fireproof insulation layers and forming the outermost wall. . Further, another fire-resistant heat insulating panel is characterized in that two of the above-mentioned heat-insulating layers are provided, and one of the above-mentioned fire-resistant heat-insulating layers is provided between them. Furthermore, the wall structure of the wooden building is characterized in that the fireproof heat insulating layer and the heat insulating layer are disposed inside the mortar layer of the outer wall. [Effects] A fire-resistant insulation panel with excellent fire resistance and heat insulation performance can be provided, and the mortar layer can be made thinner.
In addition, this fireproof insulation layer has low water absorption, so it can maintain insulation properties for a long period of time.Furthermore, this fireproof insulation layer is thin, lightweight, and rigid, so construction work is extremely simple. , this panel has a high shape retention rate.

Description

[Detailed explanation of the idea]

0001

[Technical field of invention]

This invention is a fire-resistant insulation panel for wooden buildings whose outermost wall is made of a mortar layer. For more details on the wall structure of wooden buildings using the same, please refer to the insulation performance. A fire-resistant insulation panel for wooden buildings that not only has excellent fire-retardant performance, but also has excellent fire-retardant performance. Regarding the wall structure of the wooden building used.

0002

[Technical background of the invention]

For wooden buildings in urban areas, the walls of wooden buildings are not finished with rust due to fire safety issues. The Building Standards Act stipulates that it be coated with mortar. This finishing method is Not only is this fireproof, but you can also spray colored mortar to create a richly colored finish. It is widely used because of its benefits.

0003 The wall structure of a wooden building coated with lath mortar is shown in Figure 5. As shown in FIG. A lath base plate 5 is pasted on the outdoor side, and asphalt is placed on top of this. A waterproof paper 6 such as felt is fixed, mortar 7 is applied on it, and this mortar layer 7 The outer wall 10 is finished by spraying colored cement over it.

0004 However, the wall structure of a wooden building formed in this way cannot achieve the desired fire resistance. In order to obtain fireproof properties, the mortar must be considerably thick (25 mm or more). 30mm), the problem is that it is difficult to form such a thick mortar layer. there were. Furthermore, in the event of a fire, the space 8 between the interior material 4 and the lath base plate 5 is There is room for improvement in terms of fire resistance as there is a risk that the flames may spread to the ceiling. there were.

[0005] From this point of view, as shown in Figure 6, fibrous nonflammable glass wool is used. It is also possible to fill the space between the lath base plate 5 and the interior material 4 with silica, rock wool 9, etc. It is provided. Insulating materials such as glass wool 9 are not reliable in terms of insulation performance. However, due to its high water absorption, it may not be sufficient for a long period of time. There was a problem that the insulation performance could not be demonstrated.

[0006]

[Purpose of invention]

The present invention was made to eliminate the disadvantages of such conventional technology. It is a wooden structure that not only has fire resistance but also excellent heat insulation performance and is easy to construct. To provide fire-resistant insulation panels for construction and wall structures for wooden buildings using the same. purpose.

[0007]

[Summary of the idea]

In order to achieve the above object, the fire-resistant insulation panel for wooden buildings according to the present invention has the following features: A heat insulating layer formed by extrusion of expanded polystyrene; PVC resin or salt containing an inorganic filler is formed on the front and back of this heat insulation layer. Made of a semi-nonflammable or higher material made of foam whose main component is vinyl chloride resin. two fireproof insulation layers, A mortar layer is provided on one side of these fireproof insulation layers and constitutes the outermost wall. It is characterized by being

[0008] Further, the fire-resistant insulation panel according to claim 2 is provided with two of the above-mentioned insulation layers, and It is characterized in that one of the above-mentioned fireproof heat insulating layers is disposed between these layers. Furthermore, the wall structure of a wooden building according to claim 3 includes the fireproof insulation layer and the insulation layer. , is characterized by being placed inside the mortar layer of the outer wall.

[0009] Fire-resistant insulation panel for wooden buildings according to the present invention, and walls of wooden buildings using the same According to the structure, the fireproof insulation layer installed on the indoor side of the mortar layer contains an inorganic filler. Made of polyvinyl chloride resin or foam whose main component is chlorinated vinyl chloride resin. between the fireproof insulation layer or the fireproof insulation layer. A heat insulating layer made of expanded polystyrene is installed on the front and back of the layer, so other neighboring houses The mortar layer and fireproof insulation layer work together to prevent fires that occur in the building. I will do it. Therefore, fire-resistant insulation panels with excellent fire resistance and insulation performance are required. The mortar layer can be made thin (5 mm to 8 mm).

0010 In addition, this fireproof insulation layer has low water absorption, so it maintains its insulation properties over a long period of time. In addition, the insulation layer can effectively insulate both indoor and outdoor areas. This is extremely advantageous when heating and cooling indoors. Moreover, this fireproof insulation layer is thin, Since these panels are lightweight and have high rigidity, it is important to The construction work is extremely simple.

[0011] Furthermore, the fire-resistant insulation panel according to the present invention is easy to manufacture and moldable. By selecting various shapes, it is possible to modify the shape of this panel in various ways. In addition, it is easy to manufacture large panels. In addition, the fireproof insulation layer is thin and lightweight. Because of its rigidity, this panel also has a high shape retention rate.

0012

[Specific explanation of the idea]

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a fire-resistant insulation panel for wooden construction according to a first embodiment of the present invention. 2 shows the structure of a wooden building when the walls are constructed using the fire-resistant insulation panels shown in Figure 1. FIG. 3 is a sectional view of a main part of the wall structure.

[0013] The fire-resistant insulation panel 26 for wooden construction shown in Fig. 1 is installed between the columns 1 and 1 shown in Fig. 2. It is formed into a unit panel shape so that it can be attached. That is, this panel 2 6 is the mortar layer 21 that is the outermost wall of the wooden building, and the interior of this mortar layer 21. Two fireproof insulation layers 20, 20 arranged at a predetermined interval on the side 24, and It consists of a heat insulating layer 22 provided between two fireproof heat insulating layers 20, 20. difference Furthermore, in order to increase the bending rigidity of the panel 26, reinforcement is provided at the center of the panel to serve as a stud. A material 23 may be provided. Fireproof insulation layer 20, insulation layer 22, fireproof insulation layer 20 As a fixing method, known fixing means other than adhesion and stapling can be used.

[0014] The mortar layer 21 according to this embodiment has a predetermined size so as to be set between the pillars 1. Mortar is applied to the outdoor side 25 of mortar base material that has been cut into pieces. Furthermore, colored cement is sprayed on top of this mortar layer 21 with a gun. It can also be finished.

[0015] The heat insulating layer 22 according to this embodiment is formed by extrusion molding, for example, foamed polystyrene. can be formed more easily. This heat insulating layer 22 is included in the fireproof heat insulating layer 20 described later. It was installed to further improve the insulation performance, and has excellent insulation properties for the interior 24 rooms. It is fine as long as the material is suitable.

[0016] Further, the fireproof heat insulating layer 20 may be made of vinyl chloride resin containing an inorganic filler or salt. Made of a semi-nonflammable or higher material made of foam whose main component is vinyl chloride resin. This fireproof insulation layer 20 is attached to reinforce the mortar layer 21. Therefore, it has a heat insulation and fire prevention function as well as the mortar layer 21 against heat from the outside. It exhibits high insulation properties and does not transmit indoor heat to the outside against heat from the indoor side. Demonstrate one's abilities. This fireproof heat insulating layer 20 will be detailed later.

[0017] The fire-resistant heat insulating panel 26 according to this embodiment configured as described above is set between the pillars 1. It is extremely easy to assemble the wall by fixing it with staples, etc. can. After installing the fireproof insulation panel 26 of this embodiment between the pillars 1, Interior material 4 (gypsum board) is installed on the innermost wall. Therefore, the construction of the exterior walls is extremely difficult. It's easy.

[0018] In this embodiment, as described above, a fireproof insulation layer consisting of two fireproof insulation layers 20 and a fireproof layer is used. After constructing the heat insulation panel 26, set this panel 26 between the pillars 1 to form the outer wall. has been completed. However, without configuring the insulation panel 26 in this way, the The rutal layer 21, the two fireproof insulation layers 20, and the insulation layer 22 may be installed separately. Immediately First, a mortar layer 21 is formed on the outside of the room, and then a fireproof layer is placed inside this mortar layer. The heat insulating layer 20, the heat insulating layer 22, and the fireproof heat insulating layer 20 are installed in this order, and then the interior material 4 Stretch it. In this case, fixing methods include adhesives, staples, and other known fixing methods. I can be there. In this embodiment, the fireproof heat insulating layer 20, the heat insulating layer 22, etc. It may also be a directly attached wall structure.

[0019] Next, a second embodiment of the present invention will be described. FIG. 3 is a sectional view of a fire-resistant insulation panel according to a second embodiment of the present invention, and FIG. The main points of the wall structure of a wooden building when the walls are constructed using the fire-resistant insulation panels shown in FIG.

[0020] In this embodiment, the mortar layer 21 is disconnected from the fireproof heat insulating layer 20 formed on the indoor side 24. The laminated structure with the thermal layer 22 is different. That is, in this example, the mortar The heat insulating layer 22, the fireproof heat insulating layer 20, and the heat insulating layer 22 are installed in sequence on the indoor side 24 of the layer 21. The fireproof heat insulating layer 20 is sandwiched between the heat insulating layers 22. The materials of the heat insulating layer 22 and the fireproof heat insulating layer 20 are the same as in the first embodiment. moreover In this embodiment as well, the panel 26 is constructed using these fireproof heat insulating layer 20 and heat insulating layer 22. After that, the panel may be set between the pillars 1 and 1 to form the outer wall, and the panel 26 The fireproof insulation layer 20 and the insulation layer 22 are directly connected between the columns 1 and 1 without configuring It can also be attached to a wall to form a wall.

[0021] (Fireproof insulation layer) Next, the fireproof heat insulating layer 20 will be explained in detail. The fireproof insulation layer 20 is made of vinyl chloride resin or chlorinated chloride resin containing an inorganic filler. Made of semi-nonflammable or higher material made of foam whose main component is vinyl resin. .

[0022] Semi-nonflammable or higher in this fireproof insulation layer 20 means semi-nonflammable or non-combustible. Ministry of Construction Notification No. 1372 of 1982 and Ministry of Construction Notification of 1970, respectively. No. 1828.

[0023] The vinyl chloride resin (hereinafter referred to as PVC) used for this fireproof heat insulation layer 20 is polyvinyl chloride resin (hereinafter referred to as PVC). Vinyl chloride alone or vinyl chloride copolymer containing 50% by weight or more of vinyl chloride Combined with them or vinyl chloride-vinyl acetate copolymer, thermoplastic polyurethane , acrylonitrile-butadiene copolymer, chlorinated vinyl chloride resin, chlorinated polyester Ethylene, methacrylic ester-acrylic ester copolymer, ethylene-vinegar With polyvinyl chloride such as acid vinyl copolymer, vinyl chloride-vinylidene chloride copolymer, etc. It is a mixture with at least one kind of resin having compatibility, and the polyester in the mixture is Examples include mixtures containing 50% by weight or more of vinyl chloride.

[0024] On the other hand, chlorinated vinyl chloride resin (hereinafter referred to as CPVC) refers to the PVC that is In addition to blending resins that are compatible with this CPVC, e.g. , vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, thermoplastic polyurethane, Acrylonitrile-butadiene copolymer, chlorinated polyethylene, methacrylate Stel-acrylic ester copolymer, ethylene-vinyl acetate copolymer, vinyl chloride It is a mixture with at least one type of vinyl-vinylidene chloride copolymer, etc. The concept also includes those in which the amount of blending resin in the mixture is 50% by weight or less. It is. As the vinyl chloride resin to be chlorinated, 50 weight of vinyl chloride resin % or more can also be used.

[0025] Further, examples of the inorganic filler include inorganic fibrous materials and inorganic granular materials. Among these, inorganic fibrous materials have a good volume retention effect when exposed to high temperatures. inorganic The fibrous material has an average fiber length of 1 μm or more, preferably about 10 μm to 50 mm. glass fiber, rock wool, glass fiber, ceramic fiber, alumina fiber, charcoal Examples include elementary fibers, quartz fibers, boron fibers, various metal fibers, various whiskers, etc. These fibers may be used alone or in combination of two or more. However, Rock wool is the most preferred material in terms of ease of foam molding, properties of the resulting foam, and cost. Delicious.

[0026] In addition, the average particle diameter of the inorganic particles is 0.01 to 300 μm, preferably 0. ．． Talc, calcium carbonate, aluminum hydroxide, hydroxide with a diameter of about 01 to 100 μm Suitable materials include magnesium oxide, zinc oxide, mica, bentonite, clay, and silica. Ru.

[0027] The content of such inorganic filler depends on the amount to be contained in the foam, the expansion ratio, and However, it is usually made of PVC and/or CPVC10. 0 parts by weight, for inorganic fibers 2 parts by weight or more, preferably 5 parts by weight or more , more preferably 10 parts by weight or more. About inorganic particulate matter is 198 parts by weight or more, preferably 300 parts by weight or more.

[0028] PVC foam or CPVC foam is made using a specific solvent and a large amount of rock wool, etc., which does not cause any hygiene problems. For example, the international application PCT/ By the method disclosed in JP89/00362 specification or Japanese Patent Application Laid-Open No. 63-264645, etc. Manufactured by

[0029] The expansion ratio of these foams containing inorganic fillers is preferably 50 times or more. However, when considering the amount of heat generated during combustion, the amount of smoke produced, and economic efficiency, even higher foaming is required. It is desirable that the foam has a magnification of 60 times or more, more preferably 60 times or more, and more preferably 60 times or more. or more than 80 times. However, if the foaming ratio exceeds 200 times, It is difficult to produce a normal foam, and even if a good foam is obtained, it is not strong enough. It is preferably 200 times or less, since physical properties such as strength will be insufficient.

[0030] From the above, the fireproof heat insulating layer 20 and the heat insulating layer 22 constructed using such In the fire-resistant insulation panel and the wall structure using the same, the fire-resistant insulation layer 20 is made of non-combustible material. It is also an insulating material, so it blocks thermal exchange between indoors and outdoors, and cools and heats indoors. In addition to being advantageous for the cell, there is no risk of interior materials burning due to heat from the outside, and The heat inside the house will be transferred to the outside, and there will be no risk of the fire spreading to neighboring houses. Rutaru can be made thinner. Moreover, this fireproof heat insulating layer 20 is lightweight and has high rigidity. Therefore, it not only reinforces the mortar layer 21 and improves the strength of the entire wall structure, but also Construction is also easy. Furthermore, the presence of a heat insulating layer makes it even more comfortable indoors. can improve the insulation properties of

[0031]

[Effect of the idea]

As described above, according to the present invention, the fireproof insulation installed on the indoor side of the mortar layer The layer is mainly made of vinyl chloride resin containing inorganic filler or chlorinated vinyl chloride resin. Constructed from a semi-nonflammable or higher material consisting of foam as a component, and this fireproof insulation A heat insulating layer made of expanded polystyrene is provided between the layers or on the front and back of the fireproof heat insulating layer. Therefore, a mortar layer and a fireproof insulation layer are used to protect against fires that occur from other neighboring houses. will work together to prevent this. Therefore, it has excellent fire resistance and insulation performance. The mortar layer can be made thinner (5 mm to 8 mm). mm).

[0032] In addition, this fireproof insulation layer has low water absorption, so it maintains its insulation properties over a long period of time. In addition, the insulation layer can effectively insulate both indoor and outdoor areas. This is extremely advantageous when heating and cooling indoors. Moreover, this fireproof insulation layer is thin, Since these panels are lightweight and have high rigidity, it is important to The construction work is extremely simple.

[0033] Furthermore, the fire-resistant insulation panel according to the present invention is easy to manufacture and easy to manufacture. By selecting various shapes, it is possible to modify the shape of this panel in various ways. In addition, it is easy to manufacture large panels. In addition, the fireproof insulation layer is thin and lightweight. Because of its rigidity, this panel also has a high shape retention rate.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a fire-resistant heat insulating panel for wooden construction according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a wall structure of a wooden building when the wall is constructed using the fire-resistant heat insulating panel shown in FIG. 1.

FIG. 3 is a sectional view of a fire-resistant insulation panel according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a wall structure of a wooden building when the wall is constructed using the fire-resistant heat insulating panel shown in FIG. 3;

FIG. 5 is a sectional view of a main part of a wall structure of a conventional wooden building.

FIG. 6 is a sectional view of a main part of a wall structure of a conventional wooden building.

[Explanation of symbols]

1 pillar 20 Fireproof insulation layer 21 Mortar layer 22 Heat insulation layer

Claims (3)

[Scope of utility model registration request] Claim 1: A heat insulating layer formed by extrusion molding of expanded polystyrene, and a foam mainly composed of vinyl chloride resin or chlorinated vinyl chloride resin containing an inorganic filler, which is formed on the front and back of this heat insulating layer. two fireproof insulation layers made of semi-nonflammable or higher material; a mortar layer provided on one side of these fireproof insulation layers and forming the outermost wall;
A fire-resistant insulation panel for wooden construction, characterized by comprising: Claim 2: A fireproof heat insulating layer made of a quasi-inflammable or higher material made of a polyvinyl chloride resin containing an inorganic filler or a foam whose main component is a chlorinated vinyl chloride resin, and the front and back surfaces of this fireproof heat insulating layer. two heat insulating layers formed by extrusion of expanded polystyrene; a mortar layer provided on one side of these heat insulating layers and forming the outermost wall;
A fire-resistant insulation panel for wooden construction, characterized by comprising: 3. A wall structure of a wooden building in which the outermost wall is formed of a mortar layer, wherein the interior side of the mortar layer is mainly composed of a vinyl chloride resin or a chlorinated vinyl chloride resin containing an inorganic filler. A wall structure for a wooden building, characterized in that it is provided with a fireproof heat insulating layer made of a semi-nonflammable or higher material made of foam, and a heat insulating layer formed by extrusion molding of expanded polystyrene.