KR102466229B1 - Outer insulation system and method effective for control thermal bridge phenomenon - Google Patents

Abstract

Disclosed is an external insulation system effective for controlling thermal bridging, which can improve the thermal insulation performance of a building, which is reduced due to thermal bridging between external insulation materials and at a joint between beams or slabs. The present invention is a thermal bridge blocking system between an external insulation material and a beam or slab, wherein a T-bar type thermal meta structure consisting of a first vertical part, a second vertical part and a horizontal part is installed to block the thermal bridge, The first vertical part is embedded in the first groove part having a corresponding shape formed on the upper end of the first outer insulating material, and the second vertical part has a second outer insulating material having a corresponding shape formed on the lower end of the second outer insulating material stacked on the upper part of the first outer insulating material. Is embedded in the groove, the horizontal portion is connected to the lower end of the beam or slab in contact with the second outer insulation, and the gap between the first outer insulation and the second outer insulation is grouted. to provide.

Description

Outer insulation system and method effective for control thermal bridge phenomenon

The present invention relates to an external insulation system and method, and more particularly, to an external insulation system and method capable of preventing thermal bridging occurring at vertical and horizontal connection portions of external insulation materials.

Among the outer shell structures of buildings, the outer wall of a concrete building is composed of a composite structure consisting of forming a heat insulating layer on the outer surface of the wall and finishing with various exterior materials on the outer surface to realize the insulation performance and beautiful appearance of the building.

In this composite structure, when a concrete wall is formed, an insulating material such as urethane or styrofoam is installed on the outer wall surface, and the outer surface is finished with a tile, stone or metal, such as an aluminum panel, as a finishing material for the final finishing treatment. .

In general, an external insulation system in which insulation is installed outside based on a structure (concrete) is advantageous in terms of insulation performance because it is difficult for cold outside air to flow into the interior compared to an internal insulation system in which insulation is installed inside.

However, in the conventional external insulation system, measures are taken to prevent thermal bridges occurring at the vertical and horizontal connections or joints of the external insulation materials, that is, the area where the external insulation materials are laminated, the lower part of the beam or slab, and the horizontal connection area of the external insulation materials. It's not happening.

[Prior patent literature]

- Korean Patent Publication No. 2018-0130973 (published on December 10, 2018)

- Korean Patent Publication No. 2019-0060510 (2019.06.03. Publication)

The present invention is to propose an effective external insulation system and method for controlling thermal bridging, which can improve the thermal insulation performance of a building that is reduced due to thermal bridging at the connection between external insulation materials and beams or slabs.

As one aspect for solving the above problems, the present invention is a thermal bridge blocking system between an external insulation material and a beam or slab, a T-bar type heat consisting of a first vertical part, a second vertical part and a horizontal part A meta structure is installed to block the thermal bridge, the first vertical part is embedded in the first groove part of the corresponding shape formed on the top of the first external insulation material, and the second vertical part is laminated on the top of the first external insulation material. It is embedded in a second groove having a corresponding shape formed at the lower end of the insulator, the horizontal portion is connected to the lower end of the beam or slab in contact with the second outer insulator, and the gap between the first outer insulator and the second outer insulator is Provided is a thermal bridge blocking system characterized in that grouted.

In addition, the thermal meta structure provides a thermal bridge blocking system, characterized in that composed of a structure maintaining an external shape and a heat insulating material filled inside the structure.

In addition, the structure is at least one material selected from the group consisting of paper-based laminate, corrugated board, thermoplastic polymer, and metal, and the heat insulating material is from the group consisting of air, paraffin, polymer, water, airgel, urethane foam, and styrofoam pellets. It provides a thermal bridge blocking system, characterized in that the selected one or more materials.

In addition, the present invention, (a) connecting the first external insulation to the foundation; (b) A T-bar type thermal meta structure consisting of a first vertical part, a second vertical part and a horizontal part is installed, and the first vertical part has a corresponding shape formed on the top of the first outer insulation material. Embedding the first groove and connecting the horizontal part to the lower end of the beam or slab in contact with the second outer insulation; (c) stacking a second outer insulating material on top of the first outer insulating material having a second groove having a shape corresponding to the second vertical part at a lower end thereof, and burying the second vertical part in the second groove; and (d) grouting a gap between the first external insulation material and the second external insulation material.

In addition, the thermal meta structure is made of a structure maintaining an external shape and a heat insulating material filled inside the structure, and in the step (b), a connection hardware is applied to the first vertical protrusion formed by extending the structure portion of the first vertical part. It provides a thermal bridge blocking method characterized by fixing to the first external insulation material and fixing to the beam or slab by using a connection hardware to the horizontal protrusion formed by extending the structure portion of the horizontal portion.

As another aspect for solving the above problems, the present invention is a thermal bridge blocking system of a horizontal bonding structure between external insulation materials, a T-bar type thermal meta structure consisting of a first side part, a second side part and a front part It is installed between the external insulation materials to block thermal bridges, and a portion of the first side portion and the front portion is fitted into a third groove having a corresponding shape formed at one end of the third external insulation material, and the second side portion and the other portion of the front portion are inserted. provides a thermal bridge blocking system characterized in that it is inserted into the fourth groove having a corresponding shape formed at one end of the fourth outer insulation material.

According to the present invention, the thermal bridge phenomenon can be completely prevented by installing a thermal meta material having a specific structure at the vertical and horizontal junctions of the outer insulation material.

In addition, it is possible to significantly reduce the energy consumption of a building by maximizing the insulation performance of the external insulation material by controlling the thermal bridge phenomenon.

In addition, it is possible to provide a method with improved field workability through a simple construction method by providing a method for installing a thermal meta material of a specific structure in the shortest time at the vertical and horizontal junctions of the external insulation material.

1 is a vertical cross-sectional view showing a thermal bridge blocking system according to a first aspect of the present invention;
2 is a view showing a specific shape of a thermal meta structure in the present invention;
Figure 3 is a view explaining the step of connecting the first outer insulation to the foundation in the first aspect of the present invention;
4 is a view showing a process of installing a thermal meta structure in the first aspect of the present invention;
5 is a view showing a process of laminating a second external insulation material in the first aspect of the present invention;
6 is a perspective view showing a thermal bridge blocking system according to a second aspect of the present invention;
7 is a vertical cross-sectional view showing modeling according to Example 1 and Comparative Example 1;
8 is a view showing the heat transfer analysis results of modeling according to Example 1 and Comparative Example 1;
9 is a horizontal cross-sectional view showing modeling according to Example 2 and Comparative Example 2;
10 is a diagram showing heat transfer analysis results of modeling according to Example 2 and Comparative Example 2;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted. In order to clearly explain the present invention in the drawings, parts irrelevant to the description have been omitted, similar reference numerals have been assigned to similar parts throughout the specification, and detailed configuration directions of the present invention will be described with reference to the drawings. Also, throughout the specification, when a part "includes" a certain component, it means that it may further include other components, not excluding other components, unless otherwise stated.

The present inventors face the situation that, despite the fact that the conventional external insulation system has an advantageous structure in terms of thermal insulation performance compared to the internal insulation system, measures for preventing thermal bridge phenomenon occurring at the vertical and horizontal connection parts of the external insulation material are not prepared, As a result of repeated research to solve this problem, it was confirmed that the thermal bridge phenomenon can be completely prevented by installing a thermal meta material having a specific structure, and the present invention has been reached.

1 is a vertical cross-sectional view showing a thermal bridge barrier system according to a first aspect of the present invention.

Referring to FIG. 1, the thermal bridge blocking system 100 according to the first aspect of the present invention is between the outer insulation 110 and the beam or slab 120, that is, the vertical connection of the outer insulation 110 and the beam or slab ( 120) as a thermal bridge blocking system in a horizontal connection, a T-bar type thermal meta structure 130 composed of a first vertical part 131, a second vertical part 132 and a horizontal part 133 ) is installed to block thermal bridge, but the first vertical portion 131 is embedded in the first groove portion 111 having a corresponding shape formed on the upper end of the first outer insulation material 110-1, and the second vertical portion ( 132) is embedded in the second groove portion 112 having a corresponding shape formed at the lower end of the second outer insulation material 110-2 stacked on top of the first outer insulation material 110-1, and the horizontal portion 133 is It is connected to the lower end of the beam or slab 120 in contact with the second outer insulation material 110-2, and the gap between the first outer insulation material 110-1 and the second outer insulation material 110-2 ( 113) is characterized in that it is grouted.

In the present invention, the thermal meta structure 130 is installed at the vertical and horizontal junctions of the outer insulation 110 to prevent thermal bridges, and is generally made in the form of a T-bar, and is shown in FIG. 2 as a thermal meta structure. A specific shape of the structure 130 is shown.

Referring to FIG. 2, in the present invention, the thermal meta structure 130 may vary in size depending on the site where it is installed, but the width, length, and thickness range from 500 to 2,500 mm, 2,000 to 3,000 mm, and 50 to 300 mm, respectively. can be selected from

The thermal meta structure 130 is a form in which a heat insulating material 135 is filled inside a structure 134 maintaining an external shape. As long as the structure 134 and the heat insulation material 135 are installed at the vertical and horizontal junctions of the outer insulation 110 to prevent thermal bridges, the material for the structure 134 and the heat insulation material 135 are not particularly limited, The structure 134 may be at least one selected from the group consisting of paper-based laminate, corrugated cardboard, thermoplastic polymer, and metal, and the heat insulating material 135 may include air, paraffin, polymer, water, airgel, urethane foam, and styrofoam. It may be one or more materials selected from the group consisting of grains.

Here, considering the density of the heat insulating material 135 to satisfy the heat insulating property of 0.03 w/m k or less, which is the level of thermal conductivity required in the art, the paraffin is 0.7 to 0.9 g/cm 3 , preferably 0.75 to 0.8 g/cm3, the polymer is 1.01 to 1.1 g/cm3, preferably 1.03 to 1.07 g/cm3, the water as cooling water is 1.05 to 1.15 g/cm3, preferably 1.08 to 1.12 g/cm3, the airgel is 0.05 g/cm3 to 0.15 g/cm 3, preferably 0.07 to 0.09 g/cm 3, the urethane foam and styrofoam granules are 0.025 to 0.045 g/cm 3, preferably 0.03 to 0.04 g/cm 3, and have a thermal conductivity of 0.05 to 0.015 w/m ·K level material can be selected.

In the present invention, the thermal meta structure 130 in the form of a T-bar is composed of a first vertical part 131, a second vertical part 132 and a horizontal part 133, so that the first vertical part 131 ) And the second vertical portion 132 is embedded in the grooves 111 and 112 formed in corresponding shapes across the outer surfaces of the first outer insulating material 110-1 and the second outer insulating material 110-2 to be laminated, , The horizontal portion 133 is connected to the lower end of the beam or slab 120, and the vertical connection portion of the outer insulation material 110, that is, the first outer insulation material 110-1 and the second outer insulation material 110-2 It is possible to completely prevent the thermal bridge between the heat bridge and the horizontal connection portion of the external insulation material 110, that is, between the second external insulation material 110-2 and the beam or slab 120.

Specifically, the first vertical portion 131 is buried in the first groove portion 111 having a corresponding shape formed on the upper end of the first outer insulation material 110-1, and the second vertical portion 132 is formed outside the first outside insulation material 110-1. It is embedded in the second groove portion 112 having a corresponding shape formed at the lower end of the second outer insulation material 110-2 stacked on top of the insulation material 110-1, and the horizontal portion 133 is the second outer insulation material 110 It is connected to the lower end of the beam or slab 120 in contact with -2).

At this time, the gap between the first outer heat insulating material 110-1 and the second outer heat insulating material 110-2 may be filled by grouting.

Hereinafter, a method for blocking thermal bridges in the vertical connection of external insulation materials and the horizontal connection with beams or slabs in the present invention will be described in detail.

In the present invention, the thermal bridge blocking method in the vertical connection of the external insulation material 110 and the horizontal connection with the beam or slab 120 includes: (a) connecting the first external insulation material 110-1 to the foundation 140; (b) A T-bar type thermal meta structure 130 composed of a first vertical part 131, a second vertical part 132 and a horizontal part 133 is installed, and the first vertical part 132 is installed. The part 131 is buried in the first groove part 111 having a corresponding shape formed on the top of the first outer insulation material 110-1, and the horizontal part 133 is attached to the second outer insulation material 110-2. Connecting to the lower end of the beam or slab 120 in contact; and (c) stacking a second outer insulation material 110-2 having a second groove portion 112 having a shape corresponding to the second vertical portion 132 at the lower end thereof on top of the first outer insulation material 110-1. burying the second vertical portion 132 in the second groove portion 112; and (d) grouting the gap 113 between the first outer heat insulating material 110-1 and the second outer heat insulating material 110-2.

The (a) step of connecting the first outer insulation material 110-1 to the foundation 140 is not particularly limited to the method, but, for example, a splice 141 installed in advance inside or a connecting member 142 installed outside ) It can be performed by connecting to the foundation 140 using a splice 141 and a connecting material 142 in FIGS. -1) to the foundation.

First, referring to FIG. 3 (a), the splice 141 is pre-installed inside the first outer insulation 110-1 and then combined with the reinforcing bar or wire mesh 143 pre-inserted into the foundation 140, Thereafter, the first external insulation material 110-1 may be fixed to the foundation through grouting in the splice 141.

Next, referring to FIG. 3 (b), in the case of using the connection material 142 installed outside the first outer insulation material 110-1, the connection material 142 provided in the steel plate 144 pre-installed on the upper part of the foundation 140 And bolting 145 or welding 146 through the first outer insulation material 110-1 can be fixed to the foundation 140.

Step (b) is a step of locating the thermal meta structure 130, and FIG. 4 shows a process of installing the thermal meta structure 130.

Referring to FIG. 4 , installation of a T-bar type thermal meta structure 130 consisting of a first vertical part 131, a second vertical part 132 and a horizontal part 133 is The portion 131 is buried in the first groove portion 111 having a corresponding shape formed on the top of the first outer insulation material 110-1, and the horizontal portion 133 is in contact with the second outer insulation material 110-2. It is performed by connecting to the lower end of the beam or slab 120.

The installation of the thermal meta structure 130 proceeds after fixing the first external insulation material 110-1 to the foundation 140 according to the step (a), but the installation of the thermal meta structure 130 and the first external insulation Considering the adjustment of the gap between the insulator 110-1 and the beam or slab 120, preferably, the thermal meta structure 130 before the first external insulator 110-1 is completely fixed to the foundation 140 After installing, the first outer insulation 110-1 can be completely fixed.

At this time, the connection between the thermal meta structure 130 and the first outer insulation 110-1, and the thermal meta structure 130 and the beam or slab 120 extends from the structure 134 portion of the thermal meta structure 130. It can be performed through simple construction using a stable. That is, the thermal meta structure 130 is formed by using the connection hardware I to the first vertical protrusion 134a formed by extending the structure 134 of the first vertical portion 131 to the first outer insulation 110-1. ), and the lower end of the beam or slab 120 to fix the thermal meta structure 130 to the horizontal protrusion 134b formed by extending the structure 134 portion of the horizontal portion 133 using the connection hardware I can be fixed to

The step (c) is a step of stacking the second outer insulator 110-2 on top of the first outer insulator 110-1 so that the thermal meta structure 130 is buried, and in FIG. 5 the second outer insulator ( 110-2) is shown.

Referring to FIG. 5, the stacking of the second outer insulator 110-2 includes a second outer insulator 110-2 having a second groove 112 having a shape corresponding to the second vertical portion 132 at the lower end. is stacked on top of the first outer insulation material 110-1 and the second vertical portion 132 is buried in the second groove portion 112.

Here, the laminated connection of the second outer insulation material 110-2 to the first outer insulation material 110-1 is not particularly limited to the method, but, for example, connecting to a reinforcing bar or wire mesh 143 pre-installed inside can be done in this way.

The step (d) is a step of grouting the gap 113 between the first outer insulating material 110-1 and the second outer insulating material 110-2, after the lamination of the second outer insulating material 110-2. , This is a step of finally filling the gap 113 generated between the first outer insulation material 110-1 and the second outer insulation material 110-2 by the grouting method. The grouting method is not particularly limited, and may be performed using a method commonly known in the art.

6 is a perspective view showing a thermal bridge blocking system according to a second aspect of the present invention.

Referring to FIG. 6 , a thermal bridge blocking system 200 between external insulation materials according to a second aspect of the present invention is a thermal bridge blocking system in a horizontal bonding structure between external insulation materials 210, and includes a first side portion 231, a second A thermal meta structure 230 in the form of a T-bar consisting of a side portion 232 and a front portion 233 is installed between the outer insulation materials 210 to block thermal bridge, and the first side portion 231 ) And a part of the front part 233 is inserted into the third groove part 211 having a corresponding shape formed at one end of the third outer insulation material 210-1, and the second side part 232 and the front part ( 233) is characterized in that it is inserted into the fourth groove portion 212 having a corresponding shape formed at one end of the fourth outer insulation material 210-2. Here, the column meta structure 230 is as described above, and a detailed description thereof is omitted. In addition, in the drawing, an example in which the thermal meta material is formed inside the outer heat insulating material 210 is given.

The horizontal bonding between the outer insulation materials 210 is a type in which the outer insulation materials 210 having side shapes corresponding to the T-bar type thermal metastructure 230 are symmetrically inserted on both sides of the thermal metastructure. And, after installing the third outer insulator 210-1, the first side part 231 of the thermal meta structure 230 in the form of a T-bar is placed on one side of the third outer insulator 210-1 After being inserted into the third groove part 211 formed at the end, it is inserted into the second side part 232 of the thermal meta structure 230 using the fourth groove part 212 formed at one end of the fourth outer insulation material 210-2. installed

Thereafter, the gap 213 generated between the third outer insulation material 210-1 and the fourth outer insulation material 210-2 is finally filled with the grouting method to finish the thermal bridge blocking method when horizontally bonding the outer insulation materials 210 together. can do.

Hereinafter, specific examples and comparative examples according to the present invention will be described.

Example 1 and Comparative Example 1

According to the first aspect, it was modeled as shown in FIG. 7 (a) (Example 1). The thermal meta structure 130 embedded between the outer insulation 110 and the beam 120 is an El meta structure 130 filled with airgel 135 having a density of 0.08 g/cm 3 in a paper-based laminate structure 134. For comparison, as shown in FIG. 7 (b), it was also modeled in a form without installing a thermal meta structure (Comparative Example 1). In this modeling, the heat meta material of the same material was filled inside the outer insulation 110 as well.

로 설정하고, 외단열재(110) 외면에 50

의 열원 및 -20

의 냉원을 위치시켜, 외단열재(110)의 타면에서 온도 변화를 시뮬레이션하고, 1,000분 후의 온도 분포와, '

' 지점에서의 시간에 따른 온도 변화를 각각 도 8(a) 및 도 8(b)에 나타내었다.For the models of Example 2 and Comparative Example 2, the initial temperature of each outer insulation material 110 was set to 20

, and 50 on the outer surface of the outer insulation material 110

heat source of and -20

By locating the cooling source of, simulating the temperature change on the other side of the outer insulation 110, and the temperature distribution after 1,000 minutes, '

' The temperature change with time at the point is shown in FIGS. 8(a) and 8(b), respectively.

Referring to FIG. 8 , according to the present invention, the thermal meta structure 130 protrudes by blocking the flow of heat using the T-bar type thermal meta structure 130 at the vertical and horizontal connection portions of the external insulation material 110. It is confirmed that the thermal bridge phenomenon that can occur in the ceiling of the first floor and the floor of the second floor can be remarkably improved while simplifying the process through simple construction using details and stables.

Example 2 and Comparative Example 2

According to the second aspect, it was modeled as shown in FIG. 9 (a) (Example 2). The thermal meta structure 230 inserted between the outer insulation materials 210 is an el meta structure 230 filled with airgel 235 having a density of 0.08 g/cm 3 in a paper-based laminate structure 234 . For comparison, as shown in FIG. 9 (b), it was also modeled in a form without installing a thermal meta structure (Comparative Example 2). This modeling was also performed assuming that the heat meta material of the same material was filled inside the outer insulation material 210 as well.

로 설정하고, 외단열재(210) 외면에 50

의 열원 및 -20

의 냉원을 위치시켜, 외단열재(210)의 타면에서 온도 변화를 시뮬레이션하고, 1,000분 후의 온도 분포와, '

' 지점에서의 시간에 따른 온도 변화를 각각 도 10(a) 및 도 10(b)에 나타내었다.With respect to the models of Example 2 and Comparative Example 2, the initial temperature of each outer insulation material 210 was set to 20

, and 50 on the outer surface of the outer insulation material 210

heat source of and -20

By locating the cooling source of, simulating the temperature change on the other side of the outer insulation 210, and the temperature distribution after 1,000 minutes, '

' The temperature change with time at the point is shown in FIGS. 10(a) and 10(b), respectively.

Referring to FIG. 10, according to the present invention, by blocking the flow of heat using the thermal meta structure 230 in the form of a T-bar at the horizontal joint connection portion of the external insulation material 210, the thermal bridge phenomenon that may occur at the connection portion is remarkably reduced. It is confirmed that improvement can be made.

Above, preferred embodiments of the present invention have been described in detail. The description of the present invention is for illustrative purposes, and those skilled in the art will understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention.

100, 200: thermal bridge blocking system 110, 210: external insulation
110-1: 1st outer insulation 110-2: 2nd outer insulation
111: first groove 112: second groove
113, 213: gap between outer insulation 120: beam or slab
130, 230: thermal meta structure 131: first vertical part
132: second vertical portion 133: horizontal portion
134, 234: structure 134a: first vertical protrusion
134b: horizontal protrusion 135, 235: insulation material
140: base 141: splice
142: connecting material 143: reinforcing bar or wire mesh
144: steel plate 145: bolting
146: welding 210-1: third outer insulation
210-2: 4th outer insulation 211: 3rd groove
212: fourth groove 231: first side
232: second side part 233: front part

Claims (6)

As a thermal bridge blocking system between an external insulation material and a beam or slab,
A thermal meta structure in the form of a T-bar consisting of a first vertical part, a second vertical part and a horizontal part is installed to block thermal bridge,
The first vertical part is embedded in the first groove part having a corresponding shape formed on the upper end of the first outer insulating material, and the second vertical part has a second outer insulating material having a corresponding shape formed on the lower end of the second outer insulating material stacked on the upper part of the first outer insulating material. It is embedded in the groove, and the horizontal part is connected to the lower end of the beam or slab in contact with the second outer insulation,
The thermal bridge blocking system, characterized in that the gap between the first outer insulation material and the second outer insulation material is grouted. According to claim 1,
The thermal meta structure is a thermal bridge blocking system, characterized in that consisting of a structure maintaining an external shape and a heat insulating material filled inside the structure. According to claim 2,
The structure is at least one material selected from the group consisting of paper-based laminate, corrugated board, thermoplastic polymer, and metal, and the heat insulating material is selected from the group consisting of air, paraffin, polymer, water, airgel, urethane foam, and styrofoam pellets Thermal bridge blocking system, characterized in that at least one material to be. (a) connecting the first external insulation to the foundation;
(b) A T-bar type thermal meta structure consisting of a first vertical part, a second vertical part and a horizontal part is installed, and the first vertical part has a corresponding shape formed on the top of the first outer insulation material. Embedding the first groove and connecting the horizontal part to the lower end of the beam or slab in contact with the second outer insulation;
(c) stacking a second outer insulating material on top of the first outer insulating material having a second groove having a shape corresponding to the second vertical part at a lower end thereof, and burying the second vertical part in the second groove; and
(d) grouting a gap between the first outer insulation material and the second outer insulation material;
Thermal bridge blocking method between the outer insulation and the beam or slab comprising a. According to claim 4,
The thermal meta structure is made of a structure that maintains an external shape and a heat insulating material filled inside the structure,
In the step (b), the first vertical protrusion formed by extending the structure portion of the first vertical portion is fixed to the first external insulation material using a connection hardware, and the connection hardware is connected to the horizontal protrusion formed by extending the structure portion of the horizontal portion. Thermal bridge blocking method, characterized in that for fixing with the beam or slab using. delete

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