JPH084141A - External heat-insulating structure and external heat-insulating method - Google Patents

Abstract

PURPOSE:To easily and economically install an external heat-insulating structure which checks the spread of fire, even when a fire has happened if anything the worst. CONSTITUTION:In an external heat-insulating structure 1 provided with an external facing material surrounding a building with a distance from the external wall of the building at the outside of the building and a heat-insulating layer charged with a resin heat-insulation material in the space between the external wall and the external facing material, a main partition member 12 and an auxiliary partition member 13 of a noncombustible heat-insulation material is provided to partition the height and width direction of the heat-insulating layer 5. The resin heat-insulation material is overloaded without voids in the space partitioned by the main and auxiliary partition members 12, 13. After foaming and curing, the heat-insulating material stuck out of the partitioned space 6 is removed and this removed part is closed by the non-combustible heat-insulation material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure which keeps the inside at a constant temperature, particularly preferably a structure such as a refrigerating warehouse or a freezing warehouse and a structure such as a chemical tank, in which a heat insulating structure is provided on the outside of the fireproof outer wall. The present invention relates to an external heat insulating structure to be newly installed or refurbished and an external heat insulating construction method thereof.

The outer heat insulation according to the present invention relates to a structure in which a heat insulation wall is further provided on the outer wall side of a building having a fireproof outer wall composed of a concrete wall, an ALC wall, a rock wool wall, a metal outer wall and the like. There is a general building in the cold district,
It is preferably applied to structures such as refrigerated warehouses, frozen warehouses, and ultra-low temperature frozen warehouses.

[0003]

2. Description of the Related Art As a conventional external heat insulating structure and its external heat insulating construction method, as shown in FIG. 10, for example, a sandwich panel 42 in which a heat insulating core material is sandwiched between metal surface plates is separated from a building outer wall 45 by a required dimension. The external heat insulating structure 40 is an external heat insulating structure 40 that is attached to the steel frame 43 and is filled with a heat insulating material 41 such as urethane foam resin between the outer wall 45 of the building and the sandwich panel 42, and the external heat insulating construction method thereof. With this structure and construction method, it is possible to prevent the heat insulating performance from deteriorating due to cracks in the heat insulating material, dew condensation between the heat insulating materials or between the heat insulating material and the outer wall of the building, and by using the base steel frame, the exterior material 44 The sandwich panel 42 is used as a presser for filling the heat insulating material, so that the heat insulating material 41 is completely protected from moisture (JP-A-4-6).
4884).

Further, an external heat insulation method (Japanese Patent Laid-Open No. 1-295950) in which a hard urethane foam is sprayed on the outer wall and then the outer wall material is disposed through an air layer has been proposed.

[0005]

However, since the former outer heat insulating structure and outer heat insulating construction method use an organic heat insulating material such as urethane foam resin or polystyrene resin, which is a heat insulating material, When ignited, the flames spread to other heat insulating materials one after another, the flame continued for a long time, and finally there was a risk that the heat insulating material burned out. Not only does this impose a heavy burden on the anti-inflammatory activities, but it also entails a large expense for repairing after the extinction. Therefore, thickening the organic heat insulating material was dangerous for disaster prevention. In addition, since the resin foam shrinks in volume when it solidifies, shrinkage cavities are generated in the heat insulating layer, and the shrinkage cavities serve as a base for dew condensation, which may cause adiabatic breakdown.

Further, in the latter case, there is a problem that the level of heat insulation performance is lowered and the occurrence of dew condensation cannot be properly prevented because an air layer is present.

A first object of the present invention is to solve the above-mentioned problems of the conventional external heat insulating structure, and to provide an external heat insulating structure to be laid on a fireproof outer wall of a structure which keeps the inside at a constant temperature. It is an object of the present invention to provide an external heat insulating structure capable of preventing the spread of fire without dropping the partitioning material. Further, the present invention provides a structure provided with an auxiliary partition material so as to divide the spreadable fire area into smaller parts as desired.

A second object of the present invention is to provide an outer heat insulating construction method capable of easily and economically installing an outer heat insulating structure capable of preventing the spread of fire in the case of the above-mentioned fire.

[0009]

In order to solve the above-mentioned problems, the external heat insulating structure of the present invention is a structure which is kept at a constant temperature, particularly preferably a structure whose inside is kept at a low temperature. An exterior material that encloses the building at a distance from the outer wall of the fireproof outer wall and a heat insulating layer formed by overfilling and foaming a resin heat insulating material in a space between the outer wall and the outer material. In the outer heat insulating structure, the heat insulating layer is appropriately partitioned by at least a noncombustible heat insulating material fixed to the fireproof outer wall.

Further, the external heat insulating structure of the present invention is a building which keeps the inside temperature low, and an exterior for wrapping the building outside the fireproof outer wall of the building with a space from the outer wall. A heat insulating layer formed by overfilling and foaming a resin heat insulating material in a space between the outer wall and the exterior material, wherein the outer heat insulating structure has a height direction of the heat insulating layer. A main partitioning material that is partitioned by a non-combustible heat insulating material at a predetermined interval, and a heat insulating layer that is partitioned by the main partitioning material at a predetermined interval is further assisted by a non-combustible heat insulating material in the height direction and / or the width direction. And a partition material, and the partition material is fixed to at least the fireproof outer wall.

Further, in any of the outer heat insulating structures of the above invention, the non-combustible heat insulating material has a flame retardancy superior to that of the inorganic heat insulating material or the heat insulating layer (the amount of the flame retardant added is increased. (Material) An organic heat insulating material of a resin composition.

Further, in any of the external heat insulating structures according to the above invention, the heat insulating material of the heat insulating layer is a foamed resin unit that fills the space and foams or solidifies, or a foamed resin unit does not have a difficulty. A flame retardant that promotes combustion is added.

In any one of the external heat insulating structures of the above invention, the exterior material sandwiches the core material and a core material of a resin foam which is filled and foamed and solidified inside the metal surface material of the exterior material. A panel having a surface material, wherein the core material is a foamed resin simple substance that is filled into the inside to foam and solidify, or a flame retardant is added to the foamed resin simple substance.

Further, the outer insulation method of the present invention is a building which keeps the inside at a constant temperature, and an exterior material in which the building is enclosed outside the fireproof outer wall of the building with a distance from the outer wall. In the outer heat insulation method of forming a heat insulation layer by foaming and solidifying a resin heat insulation material that foams and solidifies in the space between the outer wall and the exterior material, a non-combustible heat insulation partitioning the height direction of the space at a predetermined interval. A main partitioning material is provided, and the space partitioned by the main partitioning material is overfilled and foamed without any gaps, and after foaming and solidification, the heat insulating material protruding from the partitioning space is removed The portion from which the heat insulating material has been removed is closed with the non-combustible heat insulating material, and then the other outer material is provided by connecting to the outer material enclosing the space filled with the heat insulating material, and the newly formed space is defined as above. Similarly, partitioning with the main partition material and filling the heat insulating material It is intended to form the outer insulation wall to the next repeated the required surface.

Further, in the outer insulation method according to the above-mentioned invention, an auxiliary partition material for the non-combustible heat insulation material is further provided for further auxiliary partitioning in the height direction and / or the width direction of the space partitioned by the main partition material at a predetermined interval. That is, the heat insulating material is overfilled and foamed in each of the spaces partitioned by the auxiliary partition material without any gap.

[0016]

According to the external heat insulating structure of the present invention, since the heat insulating layer is formed by the overfilling and foaming of the resin, an unfilled space and shrinkage cavities are prevented from being generated in the filled space, and consequently dew condensation is prevented. In addition, since the heat insulating layer is appropriately partitioned with a non-combustible heat insulating material, even if the fire ignites, the flame will be blocked or delayed by the partitioned non-combustible heat insulating material. Therefore, it does not spread to another heat insulation layer partitioned by non-combustible heat insulation material at once, which is advantageous for flame-extinguishing activities.

Further, in the outer heat insulating structure of the present invention, a main partition member in which the height direction of the heat insulating layer is partitioned by a non-combustible heat insulating material at a predetermined interval, and a heat insulating layer partitioned by this main partition member at a predetermined interval are provided. Further, since the auxiliary partitioning material which is partitioned by the non-combustible heat insulating material is provided in the height direction and / or the width direction, the heat insulating layer has the same function as described above, and the heat insulating layer has the height direction and / or the width direction. The area or volume of the part to be spread is reduced, and the flame is once blocked by the auxiliary partition material that has been partitioned, and the spread of the flame is delayed, and the flame is also blocked by the main partition material. In addition, the spread of fire is delayed, and the risk of spread to other heat insulating layers at once is further reduced.

Further, in the above invention, the non-combustible heat insulating material is
Since it is an organic heat insulating material of a resin composition having a flame retardancy superior to that of an inorganic heat insulating material or a heat insulating layer, in addition to the action of any of the above-mentioned inventions, a flame is separated by a fire to prevent incombustibility. Even when reaching the location of the heat insulating material, the partition material of the non-combustible heat insulating material is an organic heat insulating material of a resin composition having a flame retardancy superior to that of the non-burning inorganic heat insulating material or the heat insulating layer,
Prevents the spread of heat to the adjacent heat insulating layer, delays the spread of fire, and prevents the spread of fire at once.

Furthermore, in any one of the above inventions, the heat insulating material of the heat insulating layer is a flame-retardant resin that fills a space and foams and solidifies, or a flame-retardant material that promotes flame retardation of the foamed resin alone. Since the agent is added, the resin heat insulating material is overfilled and foamed in the space between the fireproof outer wall of the building and the exterior material, foaming and solidifying together with the action of any of the above-mentioned inventions, and the space is maintained Since it does not cause moisture permeation to voids such as filled and unfilled parts or shrinkage cavities, it does not generate dew condensation inside the heat insulating layer and maintains the heat insulation performance. Prevents the spread of fire in the absence of fire.

In any one of the above inventions, the exterior material is a core material of a resin foam that is filled into the interior of the exterior material to foam and solidify, and a metal sandwiching the core material, for example, an anticorrosion treated steel plate or an aluminum plate. A panel having a metal surface material of, wherein the core material is filled with foam and solidified by foaming resin, or a flame retardant is added to this foaming resin alone. Along with either action, the exterior material is not permeable to moisture and has considerable rigidity, and even if it is used as a weir plate outside the fireproof outer wall of the building, it supports the expansion pressure during foaming and solidification of the heat insulating material of the heat insulating layer, The heat insulating layer is maintained at a predetermined thickness and is protected against flames caused by a fire from the outside of the building.

Further, according to the external heat insulation method of the present invention, the heat insulation layer provided with the main partition material of the non-combustible heat insulation material for partitioning the space in the height direction at a predetermined interval can be easily formed and the heat insulation thereof can be achieved. The layer also covers the irregularities of the fireproof outer wall itself, has no gaps and is excellent in heat insulation performance and maintenance, and it is easy and economical to install an outer heat insulation structure that can prevent the spread of fire in the event of a fire. You can

Furthermore, in the above-mentioned outer insulation method, the space partitioned by the main partitioning material at a predetermined interval is further partitioned by providing an auxiliary partitioning material of the non-combustible heat insulating material. Alternatively, it is possible to provide a construction method of an outer heat insulating structure which is subdivided in the width direction and in which the area or volume of the portion to be spread is reduced.

[0023]

Embodiments of the outer heat insulating structure and the outer heat insulating method according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a first embodiment of an outer insulation structure and an outer insulation construction method according to the present invention, and is a perspective view showing one span, and FIG. 2 is under construction by applying the first embodiment shown in FIG. Perspective view showing the entire building of
FIG. 3 shows the first external insulation structure and external insulation method of the building of FIG.
4 to 6 are vertical sectional views and plan sectional views for explaining the first embodiment of the outer insulation method of FIG. 1, and FIGS. 7 and 8 are FIGS. The longitudinal cross-sectional views showing the second and third embodiments of the other outer heat insulating structure and the outer heat insulating method corresponding, respectively, are shown.

FIG. 2 is a view for explaining the first embodiment of the outer heat insulating structure and the outer heat insulating method according to the present invention, and is a perspective view showing the entire building under construction. In the outer heat insulating structure 1 and the outer heat insulating construction method of the first embodiment, a mounting rail 24 that is a vertical furring strip is attached to the outside of the fireproof outer wall 4 of the building 2, and a panel 20 that is an exterior material is attached to the outside thereof. , And the space 6 between the outer wall 4 and the panel 20 is overfilled and foamed with a heat insulating material on site to provide a heat insulating layer. Building 2 is a building in a cold region, a cold storage, a freezing warehouse, or an ultra-low temperature freezing warehouse (-50 to 6
0 ° C) and is applied to new and refurbished building outer walls, such as concrete walls, ALC walls, rock wool walls, corrugated metal outer walls, and other fire-resistant outer walls.

FIG. 3 is an overall longitudinal sectional view of the outer heat insulating structure 1 of the first embodiment. The outer heat insulating structure 1 of the first embodiment has a panel 20 which is an exterior material for wrapping the building 2 outside the fireproof outer wall 4 of the building 2 which keeps the inside of the building 2 at a distance from the outer wall 4. The space between the outer wall 4 and the panel 20 is provided with a heat insulating layer 5 formed by overfilling and foaming a resin heat insulating material 7. The heat insulating layer 5 as the filling space is appropriately partitioned by the main partition member 12 which is a non-combustible heat insulating material and the panel mounting rail 24. The main partitioning member 12 is usually provided for each floor, but is not limited to this, and may be provided at appropriate intervals depending on the size of the panel, for example.

A drainer 34 is attached to the lower portion of the panel 20. The upper part of the outer wall 4 of the building 2 is a ceiling slab 31.
The heat insulating layer 30 is provided on the ceiling slab 31, and the pressing concrete 29 having the waterproof layer 28 is further provided thereon. The holding concrete 29 is
It has a parapet 33 along the perimeter of the building. Floor slabs 32, 32 are provided in the middle and lower tiers of the building 2, and a heat insulating layer 30 is provided on the lower floor slab 32, similarly to the ceiling portion, and a pressing concrete 29 is further provided thereon. . Incidentally, reference numeral 35 is a basis.

FIG. 1 is a perspective view showing one span in a first embodiment of the outer heat insulating structure and the outer heat insulating construction method according to the present invention. 4A and 4B are views for explaining the first embodiment of the outer insulation method of FIG. 1, where FIG. 4A is a longitudinal sectional view and FIG.
It is an II sectional view. As shown in FIGS. 4 and 5, in the outer heat insulating structure 1 of the first embodiment, a main partition member 12 in which the height direction of the heat insulating layer 5 is partitioned by a non-combustible heat insulating material at predetermined intervals, and the main partition material. A heat insulating layer 5 partitioned by 12 at a predetermined interval is further provided in the center between the mounting rails with an auxiliary partitioning member 13 that is additionally partitioned by a non-combustible heat insulating material that is the same material as the main partitioning material 12. It is a thing.

More specifically, the structure will be described in detail. A mounting rail 24, which is a vertical furring strip, is attached to the outside of the outer wall 4 of the building through a liner (or bracket) 25. On the outside of the mounting rail 24, as shown by an imaginary line,
The panel 20 is attached to the outer wall 4 of the building and the panel 20.
As shown in FIG. 4, mounting angles 15a, 15a for mounting the main partitioning member 12 which is a non-combustible heat insulating material are respectively mounted on each of them through a hole-in anchor, a nut 17, and a fixing screw 16b. The main partitioning material 12 which is a non-combustible heat insulating material is the two mounting angles 15
It is passed between a and 15a and is fixed with stop screws 16a and 16a. Further, if there is a space between the upper and lower liners between the outer wall 4 of the building and the mounting rail 24, a temporary fixing plate or foam board 9 is provided. Then, the outer wall 4, the panel 20,
The space 6 between the main partition member 12, the auxiliary partition member 13 and the foam board 9 is filled with a foaming resin heat insulating material. still,
The temporary fixing plate or the foam board 9 is removed after the insulating material is filled and solidified.

The main partition material 12 and the auxiliary partition material 13, which are nonflammable heat insulating materials in the present invention, are organic heat insulating materials of a resin composition having a flame retardancy superior to that of the inorganic heat insulating material or the heat insulating layer. But its main partitioning material 12 and auxiliary partitioning material 13
As for the shape, either a plate-shaped body or a cloth-shaped body can be used. As the material of the plate-shaped body, calcium silicate plate,
Calcium carbonate foam, phenol resin plate, vinyl chloride foam plate containing inorganic fibers, etc. can be adopted. As a material for the cloth-like body, a mat made of rock wool, glass wool, ceramic fiber or the like can be adopted. The filling opening 11 of the main partition material 12 or the auxiliary partition material 13 can be finally closed with a lid, or can be designed so as to be closed with an exterior material (in the case of FIG. 7). Furthermore,
The shape of the filling opening 11 is preferably a hole provided in the main partition material 12 or the auxiliary partition material 13 in order to apply foaming pressure to the foamed resin, but the main partition material 12 or the auxiliary partition material The width of 13 may be shorter than the gap between the outer wall and the exterior material to form a long groove that is open over the entire length of one span between the main partition material 12 or the auxiliary partition material 13 and the exterior material. In addition, the auxiliary partitioning member 13 has an effect of preventing fire spread when it is inserted as an auxiliary partitioning member in the height direction, that is, parallel to the mounting rail, for example, when a projecting beam portion such as a balcony is provided on the outer wall of the building. It can be increased.

The resin heat insulating material 7 of the heat insulating layer is a foamed resin alone which fills the space and is foamed and solidified, or a flame retardant which accelerates the flame retardation of this foamed resin alone. However, the foamed resin simple substance is selected and used from foamed urethane resin, foamed isocyanurate resin and the like. The flame retardant is added with 100 to 300 parts by weight of a flame retardant such as calcium carbonate, antimony pentoxide, aluminum hydroxide, calcium aluminate, etc. per 100 parts by weight of the resin, and foamed and filled by a conventional method. To do.

As the exterior material, an end material such as an inorganic exterior board or a ceramic board can be selected, and the core material is sandwiched between the core material of a resin foam which is filled inside the exterior material to foam and solidify. A panel 20 which is a heat insulating panel as a metal surface material is used, and the resin foam is made of the same material as that of the heat insulating material 7. It is possible to select a material to which a flame retardant is added, or it is possible to select a panel 20 in which a metal plate and a heat insulating material are simply laminated.

Next, with reference to FIGS. 1, 4, 5 and 6, the outer insulation method of the first embodiment will be described in individual items.

First, in FIG. 1, the mounting rail 24 is mounted on the outer wall 4 of the building via the liner (or bracket) 25 and the foam board 9. Mounting angle 15 at the same time
The a and 15c are attached to the outer wall 4 and the exterior material 20 in advance. Next, the auxiliary partition member 13 is attached with the mounting angle 15c, and the main partition member 12 is attached with the mounting angle 15a.
Attach to

In FIG. 4, the mounting angle 15a is attached to the panel 20, and the panel 20 is attached to the mounting rail 24 (not shown) in one or two stages. Mounting angle 15 for the main partitioning member 12 using the set screws 16a, 16a
a, 15a. In the space 6 between the outer wall 4 and the panel 20, from the filling opening 11 of the main partition member 12, the foaming nozzle 38 is used to overfill and foam the undiluted solution of the urethane foam resin as the heat insulating material.

In FIG. 5, the space 6 is filled with the undiluted solution of the urethane foam resin which is the heat insulating material, and the heat insulating material after foaming is sufficiently filled without any gap so as to protrude from the space 6 between the outer wall 4 and the panel 20. Fill. After the filled urethane foam resin is solidified, the protruding urethane foam resin 8 is removed.

In FIG. 6, a lid 14 of a non-combustible heat insulating material made of the same material as the material of the main partitioning material 12 is fixed to the portion where the urethane foam resin 8 protruding is removed by fixing screws 16c and 16c.

After that, the foam filling is advanced in the adjacent lateral direction, and when the work is completed by going around the building at the same level, the work shifts to the work in the upper position, and another panel 20 ′ is placed on the panel 20. Stack and repeat the procedure from above.

FIG. 7 is a vertical sectional view showing a second embodiment of another outer heat insulating structure 1 and the outer heat insulating construction method corresponding to FIG. The outer heat insulating structure and the outer heat insulating method of the second embodiment are cases where the width B of the space between the outer wall 4 and the panel 20 is narrow. The main partitioning member 12 of the second embodiment is fixed to a mounting angle 15a fixed to the outer wall 4 side with a fixing screw 16a, and cantilevered on the outer wall 4. Since the width B of the space between the outer wall 4 and the panel 20 is narrow, the main partition member 12 is fixed at a position higher than the upper end of the panel 20. When filling the heat insulating material, a gap 23 between the main partitioning material 12 and the upper end of the panel 20 is formed.
Then, the foaming nozzle 38 is inserted. Vinyl sheet 18
Is for curing to prevent the filled heat insulating material from sticking out and adhering to the upper end of the panel 20. Regarding other parts, those having the same structure and operation as those in FIGS. 1 to 6 are denoted by the same reference numerals and the description thereof will be omitted.

FIG. 8 shows a third embodiment of still another outer heat insulating structure and outer heat insulating construction method corresponding to FIGS.
FIG. 4B is a vertical cross-sectional view during filling the heat insulating material, and FIG. 6B is a vertical cross-sectional view during filling the newly formed space with the heat insulating material. The non-combustible heat insulating material of the main partition material 12 of the third embodiment is made of a flexible material. The mounting angle 15a on the panel 20, 20 'side is mounted to the panel 20 via the mounting angle 15b and the set screw 16d. Therefore, as shown in FIG. 3B, when the space 6 between the outer wall 4 and the panel 20 is filled with urethane foam resin or the like as the heat insulating material 7 and foamed, the main partition material 12 swells outward. , Whether space 6 is filled with urethane foam resin without gap,
It can be confirmed by the bulge. As for other parts, those having the same structure and operation as those in FIGS. 1 to 7 are denoted by the same reference numerals, and the description thereof will be omitted.

FIG. 9 is a cross-sectional view of a main part showing an example of a mounting state of the exterior material panel 20 on the fireproof outer wall 4 as another embodiment of the outer heat insulating structure of the present invention. In this case, the mounting rail 24 is bolted to the bracket 25 fixed to the fireproof outer wall 4, the exterior material panel 20 is fixed to the mounting rail 24 by tapping screws, etc., and the joint between the panels is fixed with the sealing material 26. A heat insulating layer 5 formed by in-situ foam filling is formed in these filling spaces. In these, the vertical furring strip structure and the mounting structure of the exterior material can be basically appropriate, and the bracket 25 and the mounting rail 24 are fixed to each other via a heat insulating plate or the outer wall 4
A means for fixing the bracket 25 and the bracket 25 via a heat insulating plate can also be appropriately applied.

Further, according to the in-situ foaming by the outer insulation method of the present invention, there are the following advantages.

An air layer is not formed on the boundary surface between the outer wall of the building and the exterior material, and the mutual adhesion is increased.

As compared with the case where a molded foam panel which has been conventionally used is arranged, a continuous heat insulating layer is formed, so that an air layer (breakdown of the heat insulating layer due to repeated condensation) is not formed and the total construction cost is reduced. It will be reduced.

When applied at the time of repairing an existing building outer wall, even if the outer wall of the building is peeled off by the exterior mortar or has unevenness due to mold removal, a tight heat insulating layer is formed.

When a molded foam panel is used, the upper limit is practically about 300 mm in wall thickness. However, in-situ foaming is possible even with a thickness of 500 mm or more (if the layer thickness can be increased, the heat insulation effect will be greater, so the required cooling, cooling, and heating capacities on the indoor side can be reduced, and the equipment and its operation can be reduced. Cost can be reduced).

By sufficiently filling (overfilling) the foamed resin into the heat insulation space, the resin foam such as urethane foam shrinks when it cools and solidifies, so shrinkage cavities may occur, but due to overfilling, The occurrence of shrinkage cavities is prevented.

Although the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to these embodiments by using the embodiments, and various modifications can be made without departing from the spirit of the present invention. In addition, it goes without saying that various modifications can be made.

[0048]

According to the external heat insulating structure of the present invention, since the heat insulating layer is appropriately partitioned by the non-combustible heat insulating material, even if a fire occurs, the flame spreads to the non-combustible heat insulating material. It is possible to prevent the spread of fire and to extend the time until the fire spreads, which is advantageous for fire fighting activities. And prevent the thermal insulation from burning down and reduce the expense burden of restoration,
The spread of fire to nearby buildings can be minimized.

Further, since the outer heat insulating structure of the present invention has the main partitioning material and the auxiliary partitioning material, it has the same effect as described above, and the heat insulating layer is subdivided in the height direction and / or the width direction. The area or volume of the part to be spread is reduced, and the flame is once stopped and delayed at the auxiliary partition material that has been partitioned, and the spread is also prevented at the main partition material. The risk of being delayed and spreading to another heat-insulating layer at once is further reduced.

Further, in any of the above inventions, the non-combustible heat insulating material is an inorganic heat insulating material or an organic heat insulating material of a resin composition having a flame retardancy superior to that of the heat insulating layer. In addition to any of the effects, even if it reaches the place of the non-combustible insulation material where the flame was partitioned due to a fire due to a natural disaster or criminal activity, the flame is prevented from moving to the adjacent insulation layer, and the flame spreads all at once. Prevent doing.

Further, in any one of the above inventions, the heat insulating material of the heat insulating layer is a foamed resin alone or a flame retardant added to this foamed resin alone. The heat insulation material is filled in the space between the outer wall of the building and the exterior material, foams and solidifies, and there is no space that fills the space and causes dew condensation inside the heat insulation layer to maintain heat insulation performance and to add a flame retardant. The foamed resin heat insulating material does not promote combustion and more appropriately prevents spread of fire.

In any of the above inventions, the exterior material is a sandwich panel having a resin foam core material and a metal surface material sandwiching the core material. Since the flame retardant is added to the foamed resin alone, in addition to the effect of any of the above-mentioned inventions, the foamed resin has a considerable rigidity, and even if it is used as a dam plate for filling resin foam material, the heat insulating material of the heat insulating layer It supports the expansion pressure at the time of foaming and solidification and maintains the thickness of the heat insulating layer at a predetermined thickness, and also prevents the spread of flame due to the flame from the outside of the building. Furthermore,
Prevents moisture from entering the insulation layer and prevents deterioration of the insulation layer.

Further, according to the external heat insulation method of the present invention, it is possible to easily form the heat insulation layer provided with the main partition material of the non-combustible heat insulation material that partitions the space in the height direction at a predetermined interval, and at the same time, perform the heat insulation. The layers are formed without air gaps, so the heat insulating layer can be prevented from deterioration due to moisture, and in the event of a fire, the main and auxiliary partitioning materials can be prevented from falling off and the spread of heat can be prevented. Objects can be attached easily and economically.

Further, in the above-described outer heat insulation method, the space partitioned by the main partition material at a predetermined interval is further partitioned by providing the auxiliary partition material of the non-combustible heat insulating material, so that in addition to the above effect, the heat insulating layer is provided in the height direction and It is possible to provide a method of forming an outer heat insulating structure that is divided into the width direction and / or the area or volume of the portion to be spread is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing one span of an external heat insulating structure and an external heat insulating method according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the entire building being constructed by applying the first embodiment shown in FIG.

FIG. 3 is an overall vertical cross-sectional view after construction of the first embodiment of the outer heat insulating structure and the outer heat insulating method of FIG.

4A and 4B are views for explaining the first embodiment of the outer insulation method of FIG. 1, in which FIG. 4A is a longitudinal sectional view and FIG. 4B is II in FIG.
It is a line sectional view.

5A and 5B are views for explaining the first embodiment of the outer insulation method of FIG. 1, in which FIG. 5A is a longitudinal sectional view and FIG. 5B is II-I in FIG.
It is a sectional view taken along line I.

6 shows a first embodiment of the outer insulation method of FIG. 1,
(A) is a longitudinal sectional view, (B) is III-III in (A)
It is a line sectional view.

FIG. 7 is a vertical cross-sectional view showing another outer heat insulating structure and a second embodiment of the outer heat insulating method corresponding to FIG.

FIG. 8 shows a third embodiment of still another outer heat insulating structure and outer heat insulating construction method corresponding to FIGS. 4 and 6, (A) is a longitudinal sectional view during filling with a heat insulating material, and (B) is a new one. FIG. 6 is a vertical cross-sectional view of the space created in FIG.

FIG. 9 is a cross-sectional view showing an example of a state in which an exterior material is attached to a heat resistant outer wall as a fourth embodiment of the outer heat insulating structure according to the present invention.

FIG. 10 is a vertical cross-sectional view showing an external heat insulating structure and an external heat insulating method according to a conventional technique.

[Explanation of symbols]

 1 Outer Heat Insulation Structure 2 Building 4 Fireproof Outer Wall 5 Heat Insulation Layer 6 Space 7 Resin Insulation Material 8 Extruded Foamed Urethane Resin 10 Incombustible Heat Insulation Material 12 Main Partitioning Material 13 Auxiliary Partitioning Material 20, 20 'Panel (External Material) 21 Core Material 22 Surface Material

Front page continuation (72) Inventor Hiroshi Wakisaka 500 Vinegar, Torahime-cho, Higashiasai-gun, Shiga Nippon Light Metal Co., Ltd. Shiga factory

Claims (7)

[Claims] 1. A building which keeps the inside of the building at a constant temperature, and an exterior material which wraps the building outside the fireproof outer wall of the building with a space from the outer wall, the outer wall and the exterior material. In an outer heat insulating structure provided with a heat insulating layer formed by overfilling and foaming a resin heat insulating material in a space of, the heat insulating layer is appropriately partitioned by a non-combustible heat insulating material fixed to at least a fireproof outer wall. Characteristic external heat insulation structure. 2. A building which keeps the inside of the building at a constant temperature, and an exterior material which wraps the building outside the fireproof outer wall of the building with a space from the outer wall, the outer wall and the exterior material. In an outer heat insulating structure including a heat insulating layer formed by overfilling and foaming a resin heat insulating material in a space of the outer heat insulating structure, the height direction of the heat insulating layer is a non-combustible heat insulating material at predetermined intervals. Partitioning, at least a main partitioning material fixed to the fireproof outer wall, and an auxiliary partitioning material in which a heat insulating layer partitioned at predetermined intervals by the main partitioning material is further partitioned by a noncombustible heat insulating material in the height direction and / or the width direction. An outer heat insulating structure, characterized in that those partitioning materials provided with are fixed to at least a fireproof outer wall. 3. The non-combustible heat insulating material according to claim 1 or 2, wherein the non-combustible heat insulating material is an inorganic heat insulating material or an organic heat insulating material of a resin composition having a flame retardancy superior to that of the heat insulating layer. An external heat insulating structure. 4. The heat insulating material according to claim 1, wherein the heat insulating material of the heat insulating layer is a foamed resin unit that fills the space and foams and solidifies, or a flame retardant process of the foamed resin unit. An external heat insulating structure, characterized in that a flame retardant which promotes the above is added. 5. The core material according to claim 1, wherein the exterior material is a resin foam core material that is filled and foamed and solidified inside the metal surface material of the exterior material, and a surface material that sandwiches the core material. An outer heat insulating structure, wherein the core material is a foamed resin simple substance which is filled in the inside to foam and solidify or a flame retardant is added to the foamed resin simple substance. . 6. A building for keeping the inside at a constant temperature, wherein an exterior material enclosing the building is provided outside the fireproof outer wall of the building with a space from the outer wall, and the outer wall and the exterior. In the outer insulation method of forming a heat insulating layer by filling a resin heat insulating material that foams into the space with the material and solidifies, the main partition material of the non-combustible heat insulating material that partitions the height direction of the space into predetermined intervals is fixed, After over-filling and foaming the heat insulating material in the space partitioned by the main partition material without a gap, foaming and solidifying, the heat insulating material protruding from the partition space is removed, and the portion from which the protruding heat insulating material is removed is removed. The non-combustible heat insulating material is closed, and then the outer material surrounding the space filled with the heat insulating material is connected to the other outer material, and the newly formed space is treated with the main partitioning material as described above. Partitioning and in-situ foaming and filling of the above-mentioned heat insulation material is repeated in sequence to externally insulate the required surface. External insulation method characterized by forming a wall. 7. The non-combustible heat insulating material auxiliary partitioning material for further auxiliary partitioning in a height direction and / or a width direction of a space partitioned by the main partitioning material at a predetermined interval is provided, and the auxiliary partitioning material is provided. An external heat insulation method characterized by overfilling and foaming a heat insulating material in each space partitioned by a material without any gaps.