JP4976821B2 - Exterior exterior panel system and its construction method - Google Patents

Description

  The present invention relates to an exterior / interior panel system that is provided on an outer peripheral portion of a building and includes a plurality of layers, and a construction method thereof.

  2. Description of the Related Art Conventionally, an exterior interior panel system composed of a plurality of layers is known for constituting an outer peripheral portion of a building such as reinforced concrete. As the main layers constituting the exterior interior panel system, an exterior panel, a heat insulating material layer, and an interior panel are generally arranged in order from the outdoor side, and each has various functions such as fire resistance, thermal insulation, and sound insulation. As appropriate. Furthermore, in addition to building members such as exterior panels, a ventilation layer may be included as one of the plurality of layers.

  For example, in the case of the outer heat insulating structure described in Patent Document 1 and the like, the inner side of the column located on the outer periphery is provided with a heat insulating material layer, a ventilation layer and an exterior panel on the outer periphery of the outer structure of the structural frame composed of columns, beams, slabs, etc. An interior panel is provided. In the configuration in which the heat insulating material layer and the exterior panel are in close contact with each other without providing a ventilation layer, interfacial condensation is likely to occur. However, the presence of the ventilation layer can ensure ventilation and prevent condensation.

  In Patent Document 2, a heat insulating material layer and a moisture permeable waterproof sheet are provided on the outdoor side of the beam or column, and a ventilation layer is formed between the moisture permeable waterproof sheet and the exterior panel. The moisture permeable waterproof sheet is provided to prevent water from entering from the ventilation layer and to allow moisture from the inside to pass through the ventilation layer. In addition, in order to prevent the thermal insulation from being burnt out and spreading between the upper floor and the lower floor via the ventilation layer in the event of a fire, a thermally expandable fireproof covering material (see Non-Patent Document 1) is used at the position of the beam or column. Laminated. The heat-expandable fireproof coating material expands in the event of a fire and blocks the ventilation layer and the like.

Further, in recent years, noise from outside as well as noise from adjacent rooms and upper floors has become a problem, and there is a demand for a sufficient sound insulation function at the outer peripheral portion. Some building members exhibit a sound insulation effect by reflecting and not transmitting incident sound, and others exhibit a sound insulation effect by not absorbing and transmitting incident sound inside. In the former, for example, there is a gypsum board, and in the latter, for example, rock wool mat, glass wool and the like are generally known. A sound insulation panel in which a material having a sound insulation effect is dispersed in a medium and formed into a panel is also known. Patent Document 3 presents a sound insulation panel in which sound-insulating hollow porous particles are dispersed in polyurethane rubber.
JP 2005-68791 A Japanese Patent No. 2000-320032 Japanese Patent No. 2997300 “Sekisui Thermally Expandable Refractory Fibro (Registered Trademark)” [searched November 2, 2006], Internet, <http://www.sekisui.co.jp/kinouken/fps1.htm>

  In an exterior interior panel system that has a ventilation layer to prevent condensation, special hardware is required to fix the layer members on both sides while securing the ventilation layer space, and the number of work steps increases, resulting in an overall cost reduction. Becomes higher. In addition, when a ventilation layer is provided, a moisture-permeable waterproof sheet is provided between the heat insulating material layer and the ventilation layer as in Patent Document 2, but this further increases the cost.

In addition, when a ventilation layer is provided, it is necessary to provide a heat-expandable fireproof covering material in order to prevent the spread of fire between the lower floor and the upper floor via the ventilation layer, depending on the material cost and work man-hours. The overall cost increases.
Furthermore, since the construction of the exterior panel is usually performed from the outdoor side, an external scaffold is required. Providing an external scaffold becomes more difficult as the height and height rise.

  Furthermore, although various single-layer panels having a sound insulation effect have been presented, the sound insulation effect is not sufficient with only a single layer, and it is necessary to effectively combine them in a multi-layered exterior interior panel system.

  In view of the above situation, an object of the present invention is to realize fire resistance, heat insulation, and sound insulation with a simple and low-cost configuration in an exterior interior panel system that constitutes an outer peripheral portion of a building. It is another object of the present invention to prevent condensation without providing a ventilation layer. Furthermore, it is the construction method of such an external interior panel system, and it aims at enabling a dry construction method without requiring an external scaffold at the time of construction.

In order to achieve the above object, the present invention provides the following configurations.
(1) An exterior interior panel system according to claim 1 is installed on an outer peripheral portion of a building, and has at least an exterior panel layer, a heat insulation panel layer, a heat insulation sound absorption layer, and an interior panel layer from the outdoor side toward the indoor side. Each of the exterior panel layer and the interior panel layer is composed of one or more member layers, the exterior panel layer includes a first fireproof plate as the member layer, and the interior panel layer is a second layer as the member layer. look-containing refractory plate, wherein the insulating panel layer rib gap (12c) between the outer panel layer is formed, the rib gap is closed by a refractory material (12d) at the boundary between each layer of the building It is characterized by.

(2) The exterior interior panel system according to claim 2 is the exterior interior panel system according to claim 1, wherein the first fireproof plate in the exterior panel layer is an extruded cement plate or a precast concrete plate, and the heat insulation panel layer is a foamed polystyrene plate. The heat insulating sound absorbing layer is made of glass wool, and the second fireproof plate in the interior panel layer is a gypsum board.

(3) The exterior interior panel system according to claim 3 is characterized in that, in claim 1 or 2, the interior panel layer further includes a moisture-proof and airtight sheet as the member layer on the indoor side of the second fireproof plate. And

( 4 ) The exterior interior panel system according to claim 4 is characterized in that, in any one of claims 1 to 3, the exterior panel layer has a thickness of 75 mm (± 20%), the rib gap is 30 mm (± 20%), The heat insulation panel layer has a thickness of 50 mm (± 20%), the heat insulation sound absorption layer has a thickness of 70 mm (± 20%), and the interior panel layer has a thickness of 30 mm (± 20%). It corresponds to the grade D60.

( 5 ) The construction method of the exterior / interior panel system according to claim 5 is a construction method in which the exterior / interior panel system according to any one of claims 1 to 4 is installed on an outer peripheral portion of a building. A first step of attaching the upper and lower ends of the exterior panel layer to the structural housing located at the upper and lower ends of the hierarchy; a second step of attaching the thermal insulation panel layer to the indoor side of the exterior panel layer; and the thermal insulation panel A third step of providing the heat insulating sound absorbing layer on the indoor side of the layer, and a fourth step of attaching the upper end and the lower end of the interior panel layer to the structural frame located at the upper end and the lower end of one level of the building, respectively. And each step is performed from the indoor side.

(A) An exterior interior panel system according to the present invention is an exterior interior panel system installed in an outer peripheral portion of a building, and includes at least an exterior panel layer, a thermal insulation panel layer, a thermal insulation sound absorbing layer, and an interior panel from the outdoor side toward the indoor side. It has 4 layers. The “panel layer” is referred to as such because it is mainly composed of a panel-like (plate-like) member. About an exterior panel layer and an interior panel layer, it does not necessarily need to be comprised from one member, and may be comprised by laminating | stacking a some member. The exterior panel layer includes a first fireproof plate as a member layer, and the interior panel layer includes a second fireproof plate.

  The first fireproof plate in the exterior panel layer and the second fireproof plate in the interior panel layer are mainly responsible for the fire resistance of the entire exterior interior panel system. In addition, fire-resistant plate materials generally have a certain level of sound insulation (prevention of transmission due to reflection of incident sound), and therefore contribute to the sound insulation of the entire exterior / interior panel system. Can do.

  Between the exterior panel layer and the interior panel layer as described above, a heat insulation panel layer and a heat insulation sound absorption layer are provided. The heat insulation panel layer is provided exclusively to ensure heat insulation. On the other hand, the heat-insulating sound-absorbing layer exhibits sound insulation by sound absorption (attenuation of incident sound) in particular, but such a material usually has a certain degree of heat-insulating property. These heat insulating panel layers and heat insulating sound absorbing layers are not sufficiently satisfactory in both heat insulating properties and sound insulating properties in a single layer, but by using them together, good heat insulating properties and sound insulating properties are realized.

As described above, in the external interior panel system of the present invention, the fire resistance, by the synergistic effect of the function of each layer, although it is a simple structure of 4 layers of the exterior panel layer, the heat insulation panel layer, the heat insulation sound absorption layer and the interior panel layer. Excellent performance was realized for both heat insulation and sound insulation. The function of each layer of the exterior interior panel system of the present invention is summarized as follows.
(I) Exterior panel layer (including the first fireproof plate): Fire resistance (auxiliary sound insulation)
(Ii) Heat insulation panel layer: heat insulation (iii) Heat insulation sound absorption layer: Sound insulation by sound absorption (auxiliary heat insulation)
(Iv) Interior panel layer (including second fireproof plate): Fireproof (auxiliary sound insulation)

  In the above (i) and (iii), “supplementally” means that the sound insulation of the exterior panel layer and the interior panel layer is auxiliary compared to the exterior panel layer and interior panel layer mainly responsible for fire resistance. Means that About the heat insulation of a heat insulation sound absorption layer, it means that it is auxiliary compared with the heat insulation panel layer which bears the principal part of heat insulation.

  Moreover, when the outer peripheral part of a building is formed by the external interior panel system of the present invention, the complete separation of the skeleton (structural frame) and the cladding (external interior etc.) is realized as compared with the concrete external wall.

(B) In the above, the first refractory plate used for the exterior panel layer is preferably an extruded cement plate or a precast concrete plate, the heat insulation panel layer is made of a foamed polystyrene plate, the heat insulation sound absorbing layer is made of glass wool, Particularly good sound insulation was realized when the second refractory plate used for the panel layer was a gypsum board. As for the extrusion-molded cement board or the precast concrete board, a product excellent in fire resistance (for example, fire resistance 30 minutes to 2 hours required for an outer wall or a partition wall) can be easily obtained. Further, the extruded cement board has an advantage that it is lighter than the precast concrete board. Moreover, both a polystyrene foam board and glass wool are easy to obtain, and are low-cost compared with the same kind of material.

(C) In the above, it is preferable that the interior panel layer includes a plurality of member layers and further includes a moisture-proof and airtight sheet on the indoor side of the gypsum board. The moisture-proof and air-tight sheet blocks moisture from indoors with this member layer. Therefore, moisture from the indoor does not reach the heat insulating sound absorbing layer, the heat insulating panel layer, and the exterior panel layer on the outdoor side from the gypsum board. As a result, condensation does not occur even if a ventilation layer is not provided between the heat insulation panel layer and the exterior panel layer as in the prior art. Since the ventilation layer is not necessary, a special hardware or the like for providing the ventilation layer and a thermally expandable refractory material for blocking the ventilation layer in the event of a fire are also unnecessary, and the work is simplified. Therefore, material and work costs can be reduced. The moisture-proof and air-tight sheet also ensures indoor airtightness.

(D) In the above description, the heat insulation panel layer and the exterior panel layer may be in close contact with each other, but a predetermined rib gap may be formed by a spacer or the like for attaching the heat insulation panel layer. This rib gap is for the convenience of panel mounting, and is closed by a refractory material at the boundary between each level without communicating with all levels of the building as in the case of a conventional ventilation layer. Therefore, this rib gap does not play the role of a conventional ventilation layer, and it is possible to prevent the spread of fire between the layers via the rib gap by blocking each layer with a refractory material.

(E) In the above, a particularly suitable exterior interior panel system has an exterior panel layer thickness of 75 mm (± 20%), a rib gap of 30 mm (± 20%), and a heat insulation panel layer thickness of 50 mm (± 20%). The heat insulating sound absorbing layer has a thickness of 70 mm (± 20%) and the interior panel layer has a thickness of 30 mm (± 20%). As a result of measuring the sound transmission loss TL _D of this exterior interior panel system in an acoustic test room, an evaluation at least corresponding to the sound insulation class D60 was obtained. This is a level that satisfies an appropriate standard for a partition wall between dwelling units of a general apartment house. Thus, in the exterior interior panel system of the present invention, high-performance sound insulation performance can be realized with a simple and low-cost configuration using easily available members. In addition, it also has fire resistance and heat insulation, and when the interior panel layer includes a moisture-proof and airtight sheet, internal condensation can also be suppressed.

(F) In the construction method of installing the exterior interior panel system of the present invention on the outer peripheral part of the building, the upper end of the exterior panel layer and the structural frame located at the upper end and the lower end of one level of the building in the first step The lower end is attached, the heat insulation panel layer is attached to the indoor side of the exterior panel layer in the second step, the heat insulation sound absorbing layer is provided on the indoor side of the heat insulation panel layer in the third step, and one level of the building in the fourth step The upper end and the lower end of the interior panel layer are respectively attached to the structural frame located at the upper end and the lower end of the interior panel. And each of these processes is performed from the indoor side. When dismantling, it can be done from the indoor side in the reverse process.

  Since the construction method of the exterior interior panel system of the present invention is a dry construction method that does not use mortar or the like, the work load is small, and the construction time can be shortened because a drying time is not required as compared with the wet construction method. Moreover, since all work is possible from the indoor side, the scaffolding 8 can be applied at the time of installation and dismantling, and is particularly suitable for high-rise and super-high-rise buildings.

  Further, the components of the exterior interior panel system of the present invention include cladding in a skeleton infill (SI) building. The cladding covers the skeleton and infill, and the exterior is one of them. As described above, the entire exterior / interior panel system of the present invention can be attached to and detached from the skeleton (structural frame) by an easy operation. This means that the skeleton and the cladding are completely separated. As a result, the cladding can be easily disassembled in whole or in part, and the exterior can be easily reformed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings showing examples.
FIG. 1 is a partial cross-sectional view of a building provided with an embodiment of an external interior panel system according to the present invention. The illustrated portion is the vicinity of the upper floor (for example, a dwelling unit) including the boundary with the lower floor, and is the vicinity of the outer periphery of the building. The left side of the drawing is the outdoor side, and the right side of the drawing is the indoor side.

  In FIG. 1, the lower floor and the upper floor are separated by a slab 2 constituting the structural housing. The slab 2 is, for example, reinforced concrete (RC) or precast concrete (PC) and has fire resistance. Although the structural column does not appear in the figure, for example, it is arranged at the tip position of the slab or at a position retracted to the indoor side.

  The exterior interior panel system 1 of the present invention shown in FIG. 1 forms an outer peripheral portion of a building at the tip position of the slab 2 and includes everything from cladding as an exterior wall on the outdoor side to interior interior on the indoor side. In the illustrated example, the exterior panel layer 11 and the heat insulation panel layer 12 on the outdoor side correspond to cladding. Cladding covers the skeleton and infill from the outside in SI buildings.

  In the outer peripheral portion of FIG. 1, the main part of the structural casing and the outer interior panel system 1 including the cladding are completely separated. This facilitates operations such as installation, renovation, and dismantling of the cladding (the specific construction method will be described later). On the other hand, in a conventional building in which the cladding is in close contact with the structural wall over a wide area, various operations relating to the cladding become large.

  The configuration of the exterior interior panel system 1 shown in FIG. 1 is as follows. The exterior panel layer 11, the heat insulation panel layer 12, the heat insulation sound absorption layer 13, and the interior panel layer 14 are sequentially provided from the outdoor side toward the indoor side.

  The exterior panel layer 11 is a layer composed of a single panel member in the illustrated example. However, when a layer such as a tile is provided on the outdoor side of the panel member, the exterior panel layer 11 may be composed of a plurality of member layers. The panel member, which is the main element of the exterior panel layer 11, is arranged in the outermost layer of the exterior interior panel system, so it protects buildings from wind, rain, fire, ultraviolet rays, etc., and has wind resistance, waterproof, fire resistance, weather resistance, etc. It is required to prepare. The exterior panel layer 11 is attached to the structural housing 2 by connecting a panel member, which is a main element thereof, to the exterior fixture 17 via a connector 15 (connection portion is not shown). The exterior fixture 17 is, for example, a long lightweight steel frame member having an L-shaped cross section. In general, the panel member of the exterior panel layer 11 has a length equivalent to the height of the floor, and the upper end and the lower end thereof are respectively attached to the structural housing (for example, the slab 2 in FIG. 1) at the upper end and the lower end of one layer. If you fix it, it will become independent.

  The exterior panel layer 11 includes a fire-resistant panel member (first fire-resistant plate) as an essential element. For example, an extrusion-molded cement plate, a precast concrete (PC) plate, a glass fiber reinforced concrete (GRC) plate, a lightweight bubble There are concrete (ALC) boards. In particular, an extrusion-molded cement board or a precast concrete board is suitable. These panel members are particularly excellent in fire resistance, but also have some sound insulation by sound reflection. Extruded cement boards (generally about 50-100 mm thick) are preferred in that they are thinner and lighter than precast concrete boards (generally about 120-150 mm thick).

  The heat insulation panel layer 12 is comprised from one panel member like illustration. For example, there are a foamed polystyrene plate, a foamed polyurethane plate, a foamed polyethylene plate, and the like. The heat insulation panel layer 12 bears the main part of the heat insulation performance of the outdoor side and the indoor side. The expanded polystyrene plate has sufficient heat insulation performance and is low in cost as compared with others.

  The heat insulating sound absorbing layer 13 is composed of a member having sound absorbing performance. For example, there are glass wool, rock wool, cellulose fiber and the like. These irregular shaped members are filled in the space between the heat insulating panel layer 12 and the interior panel layer 14. The heat insulating sound absorbing layer 13 plays a major part in the sound insulation performance on the outdoor side and indoor side, but also contributes to heat insulation to some extent since it is also a heat insulating material. Glass wool is most suitable from the result of the evaluation of the sound insulation of the entire exterior interior panel system.

  In the exterior interior panel system 1 of the present invention, the heat insulation panel layer 12 and the heat insulation sound absorption layer 13 exhibit the respective main functions and supplement the secondary functions, thereby providing excellent heat insulation performance and sound insulation performance. It can be said that both are realized.

  The interior panel layer 14 usually has a layer structure composed of a plurality of panel members or sheet members as in the illustrated example, but it does not necessarily have to be a plurality of layers. In the example shown in the drawing, a fireproof plate 141, a moisture-proof and airtight sheet 142, and an interior base plate 143 are laminated from the outdoor side.

  The interior panel layer 14 includes a fire-resistant panel member (second fire-resistant plate) as an essential element, which is the fire-resistant plate 141 in FIG. Examples of the fireproof plate 141 include a gypsum board and a calcium silicate plate. A gypsum board is suitable from the result of evaluating the sound insulation of the entire exterior interior panel system. The refractory plate 141 is self-supporting if its upper and lower ends are respectively attached and fixed to the upper and lower structural housings (for example, the slab 2 in FIG. 1) of one layer.

  The interior panel layer 14 (for example, the fireproof plate 141) is attached as follows, for example. The interior fitting 19 for attachment can be arrange | positioned at the lower end and upper end of the space of the heat insulation sound absorption layer 13, respectively, as shown in the figure. The interior fixture 19 is, for example, a long lightweight steel frame member having a U-shaped cross section, and is joined to the slab 2. Between the lower interior fixture 19 and the other interior fixture, a plurality of studs (also lightweight steel frames, not shown) are arranged at appropriate intervals in the vertical direction. The fire plate 141 is fixed to the stud. The upper and lower ends of the interior panel layer 14 are appropriately filled with a sealing material 16. In this case, the glass wool of the heat insulating sound absorbing layer 13 is filled between the plurality of vertical studs.

  The moisture-proof and airtight sheet 142 ensures airtightness. For example, a polyethylene sheet or the like. The interior base plate 143 is, for example, a gypsum board or a reinforced gypsum board other than the fireproof plate 141. In the case where the moisture-proof and air-tight sheet 142 is provided, moisture from the indoor side is blocked and is not allowed to permeate from the fireproof plate 141 to the outdoor side. As a result, condensation due to moisture from the indoor side does not occur at the interfaces of the fireproof plate 141, the heat insulating sound absorbing layer 13, the heat insulating panel layer 12, and the exterior panel layer 11. Therefore, in the exterior interior panel system of the present invention, no ventilation layer is required between the exterior panel layer 11 and the heat insulation panel layer 12. As a result, the exterior interior panel system 1 has a simple configuration and the work load is reduced.

  The moisture-proof and air-tight sheet 142 and the interior base plate 143 are optional elements, and may be stretched or painted with a fireproof plate 141 such as a plaster board as the interior base. When the interior panel layer 14 is constituted by a plurality of member layers, a composite panel in which a part or the whole of the interior panel layer 14 is unitized in a factory may be used.

  Each layer of the above-described exterior interior panel system 1 basically extends in the depth direction and the near side in FIG. In order to prevent the spread of fire between the upper floor and the lower floor via the heat insulating panel layer 12, a heat insulating fireproof material 12a such as ceramic or foamed glass is provided to block the heat insulating panel layer 12 at the boundary between the layers.

  In the example of FIG. 1, the floor panel 3 is installed in the horizontal direction on the indoor side of the interior panel layer 14. An underfloor space is provided between the floor panel 3 and the slab 2.

  FIG. 2 is a partial cross-sectional view of a building provided with another embodiment of the exterior / interior panel system according to the present invention. The same symbols are used for the same components as in the embodiment of FIG. In the exterior interior panel system 1a of FIG. 2, the difference from the embodiment of FIG. 1 is that the exterior panel layer 11 and the thermal insulation panel are provided by the presence of the mounting rib 12b on the outdoor side of the panel member of the thermal insulation panel layer 12. The rib gap 12c is formed between the layers 12. The rib 12b is usually a long member having a square cross section, and serves as an adhesive application surface when the heat insulating panel layer 12 is attached by bonding.

  Since the exterior panel layer 11 is connected to the slab 2 that is a structural housing and is self-supporting, the insulation panel layer 12 is also fixed by attaching the insulation panel layer 12 to the exterior panel layer 11 from the indoor side. The ribs 12b are attached in advance on one surface of the panel member of the heat insulating panel layer 12 at an appropriate number and an appropriate interval. The extending direction is a horizontal direction in the illustrated example, but may be a vertical direction.

  When the ribs 12b are provided in the vertical direction or even in the horizontal direction, depending on the length and position, the rib gaps 12c may communicate with each other in the vertical direction and become equivalent to the ventilation layer. In the exterior interior panel system according to the present invention, the moisture-proof and airtight sheet 141 is provided on the interior panel layer 14 as described above, so that such a ventilation layer is unnecessary, and the ventilation layer is preferably a fire spread passage between the layers. Absent. Accordingly, when there is a possibility that the rib gap 12c becomes a ventilation layer on the upper floor and the lower floor, the rib gap 12c is closed by providing a refractory material 12d such as ceramic or glass at the boundary. This prevents the spread of fire between each level.

  FIG. 3 is a partial cross-sectional view of a building provided with still another embodiment of the external interior panel system according to the present invention. The same reference numerals are used for the same components as in the embodiment of FIGS. In the exterior interior panel system 1b of FIG. 3, the difference from the embodiment of FIGS. 1 and 2 is that the heat insulation panel layer 12 is divided between layers by the slab 2 which is a structural housing. Accordingly, the spread of fire between the layers through the heat insulating panel layer 12 is prevented without providing the heat insulating fire resistant material 12a of the heat insulating panel layer 12 in FIG. 1 and the fire resistant material 12d for closing the rib gap 12c in FIG.

  With reference to FIG. 1, the installation process of the exterior interior panel system of the present invention will be generally described as follows, and it is preferable to carry out by a dry method without using mortar or the like. The following steps are all performed from the indoor side.

First step: The upper and lower ends of the panel member, which is the main part of the exterior panel layer 11, are respectively attached and fixed to the slabs 2 positioned at the upper and lower ends of the layer via the exterior fixture 17. When attaching tiles to the outdoor side of panel members, attach them before installation. When a plurality of panel members are connected in the horizontal direction, the panel members are joined by an appropriate joining tool 15.

Second step: The heat insulation panel layer 12 is attached and fixed to the indoor side of the exterior panel layer 11. When the panel member of the heat insulation panel layer 12 has ribs as in the embodiment of FIG. 2, the surface with the ribs faces the outdoor side. Attachment is by an adhesive or appropriate metal fittings.

Third step: the heat insulating sound absorbing layer 13 is provided on the indoor side of the heat insulating panel layer 12. In this process, first, a lightweight steel frame material such as an interior fixture 19 for the interior panel layer 14 in the next process is disposed. For example, a pair of lightweight steel frames are horizontally attached to the slabs 2 positioned at the upper and lower ends of the hierarchy, and a plurality of studs that connect these vertically are attached at appropriate intervals. A heat insulating sound absorbing layer 13 is formed by filling glass wool into the space between these studs.

Fourth step: Finally, the interior panel layer 14 is attached. A fireproof plate 141 such as a gypsum board, which is a main panel member, is attached and fixed to the interior fitting 19 integrated with the slab 2 positioned at the upper and lower ends of the hierarchy and the above studs with metal fittings or the like. Thereafter, a moisture-proof and airtight sheet 142 is attached to the indoor side surface of the fireproof plate 141, and a reinforced gypsum board or the like as the interior base material 143 is attached and fixed with a metal fitting or the like.

  The disassembly process is in the reverse order described above. The exterior interior panel system of the present invention can be easily attached and detached, and it is easy to partially remove and renovate the outer peripheral portion of the building.

  The structural type of the building to which the present invention is applied may be reinforced concrete (RC), steel reinforced concrete (SRC), steel or concrete-filled steel pipe. Moreover, what was factory-produced beforehand as a precast concrete structure (PC) may be used.

A sound insulation performance test was performed on the exterior interior panel system of the present invention.
<Test method>
In the type II laboratory specified in JIS A 1416 5.1B, the test body shown in FIG. 4 is used as the boundary wall, and the sound from the sound source installed on one side is measured on the other side across the boundary wall. to obtain a sound transmission loss TL _D is the difference of the incident sound and transmitted sound.
4A and 4B show a test body used in this test, in which FIG. 4A is a front view, FIG. 4B is an XX cross-sectional view, and FIG. 4C is a YY cross-sectional view. Each layer and thickness of the external interior panel system of the test body are as follows. The dimensions of the other parts are as shown in the figure.
・ Exterior panel layer 11: 75 mm, extrusion-molded cement board (trade name “ASLOCK®” manufactured by Nozawa Co., Ltd.)
・ Rib gap 12c: 30mm
・ Insulation panel layer 12: 50 mm, expanded polystyrene plate (trade name “Styrofoam (registered trademark)” manufactured by Dow Kako Co., Ltd.)
・ Insulation sound-absorbing layer 13: 70mm, glass wool (24kg / m ³ items)
・ Fireproof board 141: 21mm, gypsum board ・ Interior base plate 143: 9.5mm, reinforced gypsum board

<Test results>
FIG. 5 is a graph showing the test results. The horizontal axis is the center frequency (unit: Hz) of the measurement sound, and the vertical axis is the sound transmission loss TL _D (unit: db). Dashed lines are reference curves D50, D55, D60 of sound insulation grades shown for reference. This reference curve is set as a scale for evaluating the sound insulation performance between two rooms of an actual building.

According to the graph of FIG. 5, it can be evaluated that the external interior panel system of the present invention has a sound insulation grade D60. Strictly speaking, for sound insulation class D60, the value of sound transmission loss TL _D must be larger than the D60 reference curve at all measurement frequencies, but the test result shows that the value at 125 Hz is below the D60 reference curve, D55. However, if 2 dB, which is an allowable range of measurement error and background noise, is considered, it can be evaluated that it is equivalent to the D60 level. The sound insulation class D60 corresponds to a standard suitable for a partition wall between dwelling units of a general apartment house. As described above, the exterior interior panel system of the present invention is high in a simple and low-cost configuration mainly by the sound absorption property of the heat insulating sound absorption layer 13 and the synergistic effect of adding the auxiliary sound insulation properties of other layers. Sound insulation performance can be demonstrated.

In addition, the thickness of each layer in the above-described specimen is an example, and even if the thickness is changed within an allowable range of about ± 20% in each layer, substantially the same result can be obtained. That is, the exterior panel layer 11 has a thickness of 75 mm (± 20%), the rib gap 12c is 30 mm (± 20%), the heat insulation panel layer 12 has a thickness of 50 mm (± 20%), and the heat insulation sound absorbing layer 13 has a thickness of 70 mm ( when a ± 20%) and the interior panel layer 14 thickness 30mm (± 20%), sound transmission loss TL _D corresponds to at least D60db. In addition, a substantially equivalent result can be obtained even when there is no rib gap 12c.

It is a fragmentary sectional view of the building which shows one Example of the exterior interior panel system by this invention. It is a fragmentary sectional view of the building which shows another Example of the exterior interior panel system by this invention. It is a fragmentary sectional view of the building which shows another Example of the exterior interior panel system by this invention. The test body used for the test of the exterior interior panel system by this invention is shown, (A) is a front view, (B) is XX sectional drawing, (C) is YY sectional drawing. It is a graph which shows a sound insulation performance test result.

Explanation of symbols

1, 1a, 1b Interior / exterior panel system 2 Slab 3 Floor panel 11 Exterior panel layer (first fireproof plate)
DESCRIPTION OF SYMBOLS 12 Heat insulation panel layer 12a Heat insulation refractory material 12b Rib 12c Rib space | gap 12d Refractory material 13 Heat insulation sound absorption layer 14 Interior panel layer 141 2nd fireproof board 142 Moisture-proof airtight sheet 143 Interior base material

Claims (5)

In the exterior interior panel system installed on the outer periphery of the building,
From the outdoor side to the indoor side at least the exterior panel layer (11), the heat insulation panel layer (12), the heat insulation sound absorption layer (13) and the interior panel layer (14),
Each of the exterior panel layer and the interior panel layer is composed of one or more member layers, the exterior panel layer includes a first fireproof plate as the member layer, and the interior panel layer is a second layer as the member layer. fireproof plate (141) seen including,
A rib gap (12c) is formed between the heat insulation panel layer and the exterior panel layer, and the rib gap is closed by a refractory material (12d) at the boundary between the layers of the building. Exterior interior panel system.   The first refractory plate in the exterior panel layer is an extruded cement plate or a precast concrete plate, the heat insulation panel layer is made of a foamed polystyrene plate, the heat insulation sound absorbing layer is made of glass wool, and the second in the interior panel layer. 2. The exterior interior panel system according to claim 1, wherein the fireproof plate is a gypsum board.   The exterior interior panel system according to claim 1 or 2, wherein the interior panel layer further includes a moisture-proof and airtight sheet (142) as the member layer on the indoor side of the second fireproof plate. The exterior panel layer is 75 mm (± 20%) thick, the rib gap is 30 mm (± 20%), the heat insulation panel layer is 50 mm (± 20%), and the heat insulation sound absorbing layer is 70 mm (± 20%). %) and the a interior panel layer thickness 30 mm (± 20%), the outer interior panel according to any one of claims 1 to 3, characterized in that sound transmission loss TLD corresponds to at least the sound insulation grade D60 system. In the construction method which installs the exterior interior panel system in any one of Claims 1-4 in the outer peripheral part of a building,
A first step of attaching the upper end and the lower end of the exterior panel layer to the structural frame located at the upper end and the lower end of one level of the building;
A second step of attaching the heat insulation panel layer to the indoor side of the exterior panel layer;
A third step of providing the heat insulating sound absorbing layer on the indoor side of the heat insulating panel layer;
A fourth step of attaching the upper end and the lower end of the interior panel layer to the structural frame located at the upper end and the lower end of one level of the building is sequentially performed, and the respective steps are performed from the indoor side. Installation method of exterior interior panel system.

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