KR101494707B1 - Exterior insulation wall construction method using outside insulating material for construction having multiple vapor permeability hole for preventing mold and dew condensation - Google Patents

Abstract

The present invention relates to a method for constructing outside insulation for building construction and, more specifically, to a method for constructing outside insulation for building construction capable of preventing mold and dew condensation generated due to humid air while maintaining insulation performance by discharging humid air (remaining water and moisture in an external wall of a building, and moisture remaining in a space between the external wall of a building and an outside insulation material) to the outside through multiple vapor permeability holes formed on an outer insulation material for building construction and blocking external cold air from flowing in the external wall of a building.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an outer insulation construction method using a building insulation outer material for preventing mold and dew condensation having a plurality of moisture permeable holes,

More particularly, the present invention relates to a method of constructing an outer insulation structure for building, and more particularly, to a method of constructing an outer insulation structure for building, And a plurality of moisture permeable balls that can prevent mold and condensation caused by humid air while preventing external cold air from flowing into the outer wall of the building, The present invention relates to a method of constructing an external heat insulation using a heat insulating material.

Generally, an outer insulation material is used to block heat from the outside or to prevent internal heat from being released in a building. Outer insulation reduces surface heat condensation by enhancing the surface temperature while reducing energy loss by reducing heat loss by reducing heat loss or heat gain, and reducing the variation of room temperature when cooling or heating is unnecessary or impossible.

Styrofoam, which is usually beaded insulation material with easy external finish and low heat conduction rate, is mainly used as external thermal insulation material for construction. Styrofoam is a foamable synthetic resin that performs sound insulation and insulation when attached to the interior or exterior walls or ceiling or floor of a building. However, conventional styrofoam used as an insulating material has some effect in terms of sound insulation and heat insulation, but has limitations in preventing condensation due to temperature difference between the inside and the outside.

In order to overcome the limitations of such styrofoam insulation, a composite insulation material has been proposed in Korea Registered Practice Room 20-0418758 (Registered on June 2006. 07.), Korea Registered Practice Room 20-0409418 (Registered on Feb. 15, 2006) Patent No. 10-2014-0039817 (Publication date: 2014. 04. 02.), Korean Registration Practice No. 20-0429648 (Registered on October 19, 2006), and others.

The heat insulating materials according to the prior art for preventing condensation including the above documents may be formed by applying (or attaching) a material having a moisture-proof function, for example, mortar, moisture permeable film layer or the like to the surface of the foamable synthetic resin, Attempts have been made to tighten the connection and block external moisture from entering the connection through the connection.

However, according to the prior art, the external heat insulating materials have a structure in which a moisture-proofing material is attached to the surface of a foamable synthetic resin such as styrofoam. In this structure, although the external moisture can be prevented from flowing into the inside, Water and moisture, and the number of condensation between the outer wall body and the insulation can not be discharged to the outside, so that mold and dew formation inside and outside the invisible structural wall are not reduced.

On the other hand, Korean Patent No. 10-0614511 (filed on Mar. 08, 2006) discloses a heat insulating material formed of polymer fibers so as to reduce the temperature difference between the inside and outside air and has a ventilation structure as a whole. The ventilation structure insulation material is difficult to manufacture, the price of the product is high and the price competitiveness is not good. In addition, due to the nature of the material, moisture easily penetrates into the outer insulation material, resulting in deterioration of heat insulation performance.

Japanese Unexamined Patent Application Publication No. 2005-105792 discloses a plurality of ventilation holes formed through the front and back surfaces of a foam synthetic resin plate. In this structure, however, Since the warm air in the inner side is easily discharged to the outside due to the penetration through the foamed synthetic resin plate, the heat insulation performance is lowered. Therefore, it is limited to be applied as an external thermal insulation material for building, When the cement paste is applied to the construction method, the cement paste flows out through the ventilation hole when the concrete is cast. As a result, the heat insulating performance due to the point bridge is lowered, and the method can not be applied to the formwork method.

Accordingly, in order to solve such a problem, Korean Patent Registration No. 10-1360496 (Registered on Apr. 2014. 02. 03) proposed by the inventor of the present application and Korean Registered Patent No. 10-1360508 (Registered on Apr. 201, 03.), a plurality of vent grooves are formed in a vertical direction inside, and the air is circulated in the vertical direction through the vent grooves to automatically control temperature and humidity to prevent the occurrence of condensation on the outer wall of the building However, in this structure, the remaining water in the outer wall body, moisture, condensation water between the outer wall body and the heat insulating material can not be discharged to the outside, and thus, the condensation caused by the remaining water in the outer wall body and moisture due to moisture, .

KR 10-2014-0039817 A, 2014. 04. 02. KR 20-0429648, October 19, 2006. KR 10-0614511 B1, 2006. 08. 14. KR 10-1360496 B1, 2014. 02. 03. KR 10-1360508 B1, 2014. 02. 03.

Accordingly, the present invention has been made in order to solve the problems of the prior art, and it is an object of the present invention to minimize the rise of the product price, (Or minimizing the reduction of the heat insulating performance) while discharging only the humid air present therein to the outside, thereby effectively preventing condensation.

It is another object of the present invention to provide an external insulation installation method which can be effectively applied to a method of installing a concrete (gum, euro form) in which a concrete installation process is performed in a state where an external thermal insulation material for construction is installed.

According to one aspect of the present invention, there is provided a method of manufacturing a floor concrete comprising: (a) installing an outer mold (2) in a vertical direction on one side of a floor concrete (1); (100) is joined to the inner surface of the outer mold (2), and the outer heat insulating material (100) for building is fixed to one side of the three tie tie (3) provided inside the formwork fastening hole (113) (2) by means of an outer die fixing bolt (4) which is fastened to the outer die (2); (c) disposing a reinforcing bar (5) on the side of the rear portion (120) of the building external thermal insulating material (100); (d) Using the inner die fixing bolts 7, the inner die 6 is fixed to the other side of the septa 3 in the state where the support table 8 is provided on the inner side of the inner die 6 in one direction, ; (e) forming a concrete wall body (9) constituting an outer wall body (10) of the building by placing concrete between the inner wall (120) of the outer thermal insulating material (100) and the inner wall (6); (f) releasing the outer form fixing bolts (4) to separate the outer formwork (2) from the building outer insulating material (100) to expose the front face portion (110) of the building outer insulating material (100); (g) attaching the mesh (11) to the front portion (110) of the exposed building thermal insulation material (100) using an adhesive mortar; (h) A plastic cap (12) having a fastening bolt for fixing a mesh is fastened to one side of the three tie tie (3) from which the outer die fixing bolt (4) (110) of the heat insulating material (100); (i) applying a cement adhesive mortar (13) to the entire surface of the mesh (11), finishing the cement adhesive mortar (13) and attaching a tile (14) as a finishing material; And separating the inner formwork (6) from the concrete wall body (9) by separating the inner formwork fixing bolts (7) from the other side of the septa tie (3) The external heat insulating material 100 includes a front face 110 to which a finishing material or a casing is attached, a back face 120 coupled to an outer wall of the building, and a structure including first to fourth side faces 130, 140, 150, A plurality of moisture permeable holes 112 are formed at a predetermined depth from the surface of the front surface portion 110 in the direction of the back surface portion 120 in order to discharge the humid air therein, The thickness t between the bottom part 112a of the back surface part 120 and the back surface part 120 is set so that the equivalent air layer thickness (Sd value) calculated corresponding to the moisture resistance resistance coefficient inherent to the structure has a thickness of less than 1 m. Lt; RTI ID = 0.0 > 112 < / RTI > Provided is a method for external heat insulation using a building insulation material for preventing mold and dew condensation with a moisture permeable ball.

Preferably, the front part 110 is formed with a plurality of outer material coupling grooves 111 extending in the horizontal direction to increase the coupling force with the mesh 11 attached through the adhesive mortar, One or a plurality of wall coupling grooves 121 closely contacting the concrete wall 9 are formed to be parallel to the exterior material coupling grooves 111. The exterior material coupling grooves 111 and the wall coupling grooves 121, (121) may have a structure in which both side portions are recessed inward.

Preferably, the structure may be any one selected from foamed polypropylene (EPP), expanded polystyrene (EPS), extruded expanded polystyrene, foamed vinyl acetate (EVA), expanded polyethylene (PE) or foamed polyurethane (PU).

As described above, according to the present invention, a plurality of moisture permeable holes are formed at a predetermined depth in the direction of the back surface portion from the front surface portion. The thickness between the bottom portion and the back surface portion of the moisture permeable hole, (Sd value) of less than 1m in consideration of the inherent moisture permeability coefficient of the building, by constructing the external heat by using the external insulation of the building having the thickness of less than 1m, And humidity, moisture present in a space between the outer wall body of the building and the building outer insulating material) to the outside, and the cold air from the outside is prevented from flowing into the outer wall body of the building through the moisture permeable hole, And condensation can be prevented.

In addition, according to the present invention, a plurality of exterior material coupling grooves are formed in the front face portion, and external heat is applied by using an external thermal insulation material for construction in which a plurality of wall coupling grooves are formed in the rear face portion, The adhesion of the tiles (clay, basalt, sandstone, etc.) is improved so as to prevent the exterior material from easily falling off from the building exterior heat insulating material, and the bonding force between the exterior wall body of the building and the back surface portion of the building external heat insulating material is improved, Can be prevented from being easily detached from the outer wall body of the building.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a mold and an external heat insulating material for dew condensation prevention having a plurality of moisture permeable holes according to an embodiment of the present invention; FIG.
Fig. 2 is a front view of the external heat insulating material for construction shown in Fig. 1; Fig.
Fig. 3 is a rear view of the building exterior heat insulating material shown in Fig. 1; Fig.
Fig. 4 is a left side view of the building exterior insulator shown in Fig. 1; Fig.
Fig. 5 is a right side view of the building exterior insulator shown in Fig. 1; Fig.
6 is a plan view of the external heat insulating material for construction shown in Fig.
7 is a bottom view of the building exterior heat insulating material shown in Fig.
8 is a cross-sectional view of a building exterior insulation material along the II 'perforation line shown in FIG. 2;
9 is a sectional view for explaining the equivalent air layer thickness (Sd value) of the external thermal insulating material according to the embodiment of the present invention.
10 is a sectional view for explaining the operation characteristics of the external thermal insulating material according to the embodiment of the present invention.
FIG. 11 is a flow chart for explaining an outer insulation construction method according to an embodiment of the present invention; FIG.
12 to 22 are views showing the construction state of each construction step shown in FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various other forms.

The present embodiments are provided so that the disclosure of the present invention is thoroughly disclosed and that those skilled in the art will fully understand the scope of the present invention. And the present invention is only defined by the scope of the claims. Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

In addition, like reference numerals refer to like elements throughout the specification. Moreover, terms used herein (to be referred to) are intended to illustrate the embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, the technical features of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an outer insulating member according to an embodiment of the present invention, FIG. 2 is a front view of the outer insulating member shown in FIG. 1, FIG. 3 is a rear view of the outer insulating member for construction shown in FIG. 1, Fig. 4 is a left side view of the building outer insulation material shown in Fig. 1, Fig. 5 is a right side view of the building outer insulation material shown in Fig. 1, Fig. 6 is a plan view of the building insulation material shown in Fig. FIG. 8 is a cross-sectional view of a structural external heat insulator along the II 'perforated line shown in FIG. 2. FIG.

1 to 8, a building external heat insulating material 100 according to the present invention is a structure to be attached to or bonded to an outer wall of a building, wherein the remaining water and moisture inside the outer wall of the building, And a plurality of moisture permeable holes 112 for discharging the moisture present in the space of the building to the outside and preventing the external cold air from flowing between the structure and the outer wall body of the building.

The building outer insulation material 100 according to the present invention may be used as a building exterior insulation material 100 in a wide variety of applications such as foamed polypropylene (EPP), expanded polystyrene (EPS) (including a bead method shielding plate), extruded expanded polystyrene (including extrusion method shielding plates), foamed vinyl acetate (EVA) (PE), foamed polyurethane (PU), nonwoven fabric (PET) or polyvinyl chloride (PVC) can be used. It is preferable to use bead foam expanded polystyrene or extruded expanded polystyrene which is heat-resistant to the inside even in a state where it is easily processed and is inexpensive and is installed on the outer wall of a building due to its material properties.

2 to 7, the external thermal insulating material 100 according to the present invention includes a front face 110 to which a finishing material or a facade material is attached, a back face 110 attached to or bonded to a housing wall, For example, 900x600 mm, depending on the installation place, and may be formed as a rectangular parallelepiped including the first to fourth side portions 130, 140, 150, As shown in Fig.

A plurality of moisture permeable holes 112 are formed at a predetermined depth in the direction of the back surface portion 120 from the front surface of the front surface portion 110 in the external thermal insulation material 100 of the building as shown in FIGS. 1 to 3 and 8, Moisture remaining in the space between the building outer insulation material 100 and the outer wall body of the building, that is, moist air.

In addition, a plurality of exterior material coupling grooves 111 are formed in the front face portion 110 of the external thermal insulation material 100 in the horizontal direction so as to adhere the finishing material or the exterior material. At this time, the facing material coupling groove 111 may be formed in a triangular shape, a square shape, or a trapezoid shape. Preferably, the inner side portions are formed to have a hollow structure in which the inner side portions are recessed inward in the horizontal direction, that is, the inner side (the thickness direction of the structural thermal insulation material 100) It is possible to further improve the bonding force of the finishing material or the exterior material by filling both sides of the exterior material coupling groove 111 to the inwardly recessed portion.

That is, in the present invention, both side portions of the facing material coupling grooves 111 formed on the front surface portion 110 of the building external thermal insulating material 100 are recessed inwardly so that the adhesive mortar is strongly coupled with the facing material coupling grooves 111 It is possible to solve the problem that the exterior finish material can be easily removed from the building exterior insulation material 100 by improving the adhesion of the exterior finish material attached through the adhesive mortar in the future.

1, 2, and 8, the moisture permeable hole 112 according to the present invention includes a plurality of micro-pores, and the micro-pores are formed to extend from the surface of the front portion 110 so as to intersect with the exterior- And is formed to have a predetermined depth in the direction of the back surface portion 120 to function as a path for discharging the moisture remaining in the inside of the outer wall of the building and moisture present in the space between the building outer insulating material 100 and the outer wall of the building to the outside.

That is, as shown in FIGS. 8 and 10, the moisture permeable hole 112 according to the present invention has a structure in which moisture and moisture remaining inside the outer wall of the building, moisture existing in the space between the outer thermal insulation material 100 of the building and the outer wall of the building In order to prevent the external cold air from flowing into the space between the outer wall body 10 of the building and the building outer insulating material 100 through the moisture permeable hole 112 while discharging the humid air to the outside, But the back surface 120 is a non-penetrating membrane having a predetermined depth in the direction of the back surface 120 from the surface of the front surface 110.

Since the moisture permeable hole 112 does not penetrate the back surface portion 120 but has a ventilation structure with one side closed, the external cold air is not introduced into the interior through the moisture permeable hole 112, The size (d, see Fig. 9) of each vent hole constituting does not limit. However, in order to prevent the cold air from flowing from the outside through the moisture permeable hole 112 in consideration of the heat insulating performance, it is formed to be 15 mm or less, preferably 5 mm to 15 mm.

As shown in FIGS. 8 and 9, since the moisture permeable hole 112 is formed in a structure in which the back surface portion 120, which is in contact with the outer wall body of the building, is not covered with the outer thermal insulation material 100 completely in the thickness direction, The humid air existing in the space between the outer wall body of the building and the building outer thermal insulating material 100 can be blocked without being transmitted to the moisture permeable hole 112 by the clogged portion.

Therefore, in the present invention, in consideration of the moisture permeation resistance coefficient of the building external thermal insulation material 100 so that the humid air in the interior of the moisture permeable hole 112 is not transmitted through the moisture permeable hole 112, The depth of the moisture permeable hole 112 is determined such that the thickness between the bottom part 112a and the surface of the rear part 120 has a thickness such that the equivalent air layer thickness (Sd value) corresponding to the 'moisture permeability' is less than 1 m.

(EP), expanded polystyrene (EPS) (including a bead method shielding plate), extruded expanded polystyrene (including an extrusion method shielding plate), foamed vinyl acetate (EVA), expanded polyethylene (PE) , Foamed polyurethane (PU), nonwoven (PET), or polyvinyl chloride (PVC) have respective moisture resistance resistances that resist moisture regardless of their thickness. In this case, the 'moisture permeation resistance coefficient' refers to the relative resistance of each material when the value of air resistance against moisture is represented as '1'. As a characteristic of an object such as a specific gravity, The water vapor permeability is low.

The moisture permeability of the external insulation can be determined by US Perms (North America) or the equivalent air layer thickness (Sd value) (Europe). The equivalent air layer thickness (Sd value) is a value obtained by converting the moisture resistance of the material to the thickness of the air layer And can be expressed by the following equation (1). &Quot; (1) "

[Equation 1]

Equivalent air layer thickness (Sd value) = moisture permeation resistance coefficient x thickness (m)

Based on the equivalent air layer thickness (Sd value), the moisture permeability of the material can be judged as shown in [Table 1].

Sd value <1m

Breathing
1m <Sd value <100m

Anti-breathing
100m <Sd value <1000m

Breathless
1,000m <Sd value

Completely impermeable

As shown in Table 1, the moisture permeability of the material can be determined based on the equivalent air layer thickness (Sd value). However, it is a physical criterion, and typically the equivalent air layer thickness (Sd value) It should be said that the breathing is not smooth. In other words, if the equivalent air layer thickness (Sd value) exceeds 10m, it is theoretically a little breathable, so it is judged as anti-breathing, but it is as small as negligible in actual buildings.

9, the thickness t between the bottom portion 112a of the moisture permeable holes 112 and the back surface portion 120 of the moisture permeable holes 112 may be determined considering the inherent moisture permeation resistance coefficient and the total thickness of the external thermal insulation material 100, (That is, the thickness of the portion of the building exterior heat insulator which is blocked without penetrating the moisture permeable hole) is less than 1 m (moisture permeation) of the equivalent air layer thickness (Sd value).

9 is a sectional view for explaining the equivalent air layer thickness (Sd value) of the heat insulating material for building according to the present invention. As shown in Fig. 9, for example, the equivalent air layer thickness of the bead styrofoam is calculated by substituting the above formula (1) for a bead styrofoam having a total thickness (T) of 200 mm and a moisture permeation resistance coefficient of 35, Sd value) is calculated as shown in Table 2 below.

Water permeability depth (D)  The thickness (t) Equivalent air layer thickness (Sd value) (m) One 0mm 200mm 7m 2 195mm 5mm 0.175m 3 172mm 28mm 0.98 m 4 170mm 30mm 1.05m

Referring to FIG. 9 and Table 2, when the bead method Styrofoam is not provided with a moisture-proof hole, the equivalent air layer thickness (Sd value) is 7 m (35 x 0.2 m) And "opaque". On the other hand, as in the case of Examples 2 to 4, the depth (D) of the bead-styrofoam was 195 mm, 172 mm, and 170 mm, respectively, and the thickness t of the portion blocked without penetration was 5 mm, 28 mm, The equivalent air layer thickness (Sd value) of the bead polystyrene foam was 0.175 m (35 x 0.005 m), 0.98 m (35 x 0.028 m), 1.05 m 35 × 0.030m) ', which corresponds to less than 1m, which corresponds to "breathable".

Therefore, in the present invention, when the bead method styrofoam having a total thickness of 200 mm is used as the building external heat insulating material 100 and the moisture permeable hole 112 is formed on the bead method styrofoam, the thickness t Is preferably formed within the range of the equivalent air layer thickness (Sd value) of less than 1 m, less than approximately 28 mm, preferably within the range of 5 mm to 28 mm.

Each of the moisture permeable holes 112 according to the present invention may be formed in an elliptical shape, a polygonal shape (for example, a triangular shape, a square shape, a hexagonal shape, an octagonal shape, etc.) . As described above, when each of the moisture permeable holes 112 is formed into a polygonal shape or a specific pattern, it is preferable that the polygonal shape or the specific pattern is formed to have a size in which the polygonal shape or the specific pattern is in contact with a circle having a diameter of 5 mm to 15 mm.

In addition, in the case of the moisture permeable ball 112 according to the present invention, when the interval between the adjacent moisture permeable holes is less than 1 cm and the interval is narrow, it is difficult to drill a large number of moisture permeable balls in the external thermal insulating material 100, The neighboring ones are communicated with each other to expand the size of the air-permeable hole, so that the cold air from the outside may be introduced to deteriorate the heat insulating performance.

In the case where the interval between the adjacent moisture permeable holes is formed to be as wide as 15 cm or more, since the density (number) of the moisture permeable holes formed in the external thermal insulation material for building 100 manufactured in a standardized manner is low, There is a limit in preventing such a problem. Accordingly, in the present invention, the gap between the moisture permeable holes is formed so that the adjacent ones are spaced apart by 1 cm to 15 cm. Preferably at intervals of 2 cm to 10 cm.

Each of the moisture permeable holes 112 according to the present invention may be formed so as to be positioned horizontally on the front face portion 110 and the back face portion 120 of the external thermal insulating material 100 for construction or the moisture permeable holes 112 may be formed on the external heat insulating material The front face 110 and the back face 120 of the display unit 100 may be obliquely formed.

In addition, the moisture permeable holes 112 may be formed in the same size or different sizes in the same external thermal insulation material 100. Each of the moisture permeable holes 112 according to the present invention may be smaller or larger as it goes from the front portion 110 to the rear portion 120 of the building external thermal insulation material 100.

In addition, the plurality of moisture permeable holes 112 according to the present invention may be formed to have different sizes in the front surface portion 110 and the back surface portion 120 of the external thermal insulation material 100 for building. In addition, the depth of the moisture permeable holes 112 in the same external thermal insulation material 100 may be equal to or different from each other.

The plurality of moisture permeable holes 112 according to the present invention may be arranged in multiple rows in the external thermal insulation material 100 or radially disposed at the center of the external thermal insulation material 100. Also, the plurality of moisture permeable holes 112 may be irregularly arranged in the external thermal insulation material 100 for building.

3 to 5, the rear surface portion 120 of the external thermal insulation material 100 according to the present invention is formed so as to be in close contact with the exterior wall body of the building so as to be parallel to the exterior material coupling groove 111 formed in the front surface portion 110. [ One or a plurality of wall coupling grooves 121 are formed so as to be in close contact with each other.

As shown in FIG. 3, the wall coupling grooves 121 according to the present invention are formed in two horizontal directions. However, the number of the wall coupling grooves 121 is not limited. However, at least two or more of them are formed in consideration of the bonding force between the outer wall bodies of the building.

4 and 5, the wall coupling groove 121 according to the present invention may have a substantially triangular structure having a wider inner side than the entrance side (open side) when viewed from the side. That is, the concrete having a triangular shape when viewed from the third and fourth side portions 150 and 160, through which the concrete constituting the outer wall body of the building is inserted into the wall joint groove 121, So that the bonding force of the building with the outer wall body can be further improved.

As shown in FIGS. 1 to 3 and 8, in the building external heat insulating material 100, a fixing bolt 120 is inserted through the rear face portion 120 from the front face portion 110 to be fixed to a mold applied to an apartment construction, The form fastening holes 113 may be formed.

10 is a sectional view for explaining the operation characteristics of the external thermal insulating material according to the embodiment of the present invention.

9 and 10, humid air exists in the space between the outer wall body 10 of the building and the building outer insulating material 100. The humid air is generated by the remaining water of the outer wall body 10 of the building, It may be generated by the temperature difference between the inside and outside air. Since the humid air is relatively warm compared to the cold air outside, a convection action occurs between the inside and the outside through the building insulation member 100. At this time, the humid air in the interior is discharged to the outside through the moisture permeable hole 112 of the building exterior heat insulating material 100 by the convection action.

That is, the present invention is characterized in that a plurality of moisture permeable holes 112 are formed at a predetermined depth in the direction of the back surface 120 from the front surface of the front surface portion 110. The moisture permeable holes 112 are formed in the bottom surface 112a, 120 having the moisture permeable holes 112 formed therein is formed to have a thickness such that the equivalent air layer thickness (Sd value) is less than 1 m in consideration of the inherent moisture permeability resistance coefficient of the building external insulation material 100 The humid air existing in the space between the outer wall body 10 of the building and the building outer insulating material 100 is discharged to the outside through the plurality of moisture permeable holes 112 by the convection action due to the temperature difference between the inside and the outside At this time, the external cold air is prevented from flowing into the interior through the moisture-permeable hole 112 having a temperature corresponding to the heat filled in the external thermal insulation material 100, so that the insulation performance can be maintained at the same level.

Accordingly, the present invention is capable of effectively discharging the humid air in the room through the plurality of moisture-permeable holes 112 of the external thermal insulation material 100 to suppress the mold and condensation, The insulation performance can be maintained at the same level.

FIG. 11 is a flowchart illustrating a method of constructing an external insulation system according to an embodiment of the present invention, and FIGS. 12 to 22 illustrate construction of each construction step shown in FIG.

Referring to FIGS. 11 and 12, first, the outer formwork 2 is installed on one side of the floor concrete 1 (ST1).

11 and 13, the external heat insulating material 100 shown in FIGS. 1 to 8 is joined to the inner surface of the outer mold 2 (ST2). At this time, the building external heat insulating material 100 is fixed to the exterior (not shown) through the external mold fixing bolts 4 (see Fig. 17) fastened to one side of the three tie tie 3 provided inside the fastening bolt 113 Is fixed to the inner surface of the formwork (2).

11 and 14, reinforcing rods 5 are placed on the side of the back surface 120 of the building external thermal insulating material 100 (ST3).

11 and 15, the inner die 6 is fixed to the inner die 6 by using the inner die fixing bolt 7 in a state where the support base 8 is provided on the inner side of the inner die 6 in one direction, 3) (ST4).

Thereafter, as shown in FIGS. 11, 16 and 17, concrete is placed between the backside 120 of the external thermal insulation material 100 and the internal mold 6 to form a concrete wall 9 constituting the building outer wall 10 (ST5).

At this time, the concrete wall 9 is filled up to the inside of the wall connection groove 121 (see FIGS. 4 and 5) formed in the back surface portion 120 of the external thermal insulation material 100 for construction to further improve the bonding force with the external thermal insulation material 100 . 1 and 8) are not pierced to the side of the back part 120 which is coupled with the concrete wall 9, but the cement paste is applied to the moisture permeable balls 112 from being introduced into the interior.

Thereafter, as shown in Figs. 11 and 18, the outer formwork fixing bolt 4 (see Fig. 17) is released and the outer formwork 2 is separated from the building exterior heat insulator 100 (ST6). Accordingly, the front face portion 110 of the building external thermal insulating material 100 is exposed to the outside.

11 and 19, after the mesh 11 is attached to the front portion 110 of the exposed external thermal insulation material 100 using the adhesive mortar, the mesh 11 is bonded to the external thermal insulation material 100 for construction, A plastic cap 12 having a mesh fixing bolt is coupled to one side of a septum tie 3 from which an outer die fixing bolt 4 (see Fig. 17) (ST7).

At this time, since a plurality of outer material coupling grooves 111 are formed in the front face portion 110 of the building external thermal insulating material 100, the adhesion force of the mesh 11 can be improved. Since the plastic cap 12 has a substantially circular structure, the plastic cap 12 spreads the load of the finishing material to the outer wall of the building by holding the mesh 11 widely in a wide area.

Thereafter, as shown in Figs. 11, 20, and 21, a cement adhesive mortar 13 is applied to the entire surface of the mesh 11, and the tile 14 is adhered to the cement adhesive mortar 13 as a finishing material (ST8).

Thereafter, as shown in Figs. 11 and 22, the inner mold fixing bolts 7 (see Fig. 15) are separated from the other side of the septic ties 3 so that the inner molds 6 (ST9).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: bottom concrete 2: outer formwork
3: Sepatai 4: Bolt for securing outer formwork
5: Rebar 6: Inner mold
7: Bolts for fastening internal molds 8: Supports
9: Concrete wall 10: Outer wall of building
11: mesh 12: plastic cap
13: Cement Adhesive Mortar 14: Chimney Tile
100: Building exterior heat insulator 110: Front face part
120:
130, 140, 150, 160: first, second,
111: exterior material coupling groove 112: breathable ball
121: wall joint groove 113: formwork fastener

Claims (3)

(a) installing an outer mold (2) in a direction perpendicular to one side of the floor concrete (1);
(100) is joined to the inner surface of the outer mold (2), and the outer heat insulating material (100) for building is fixed to one side of the three tie tie (3) provided inside the formwork fastening hole (113) (2) by means of an outer die fixing bolt (4) which is fastened to the outer die (2);
(c) disposing a reinforcing bar (5) on the side of the rear portion (120) of the building external thermal insulating material (100);
(d) Using the inner die fixing bolts 7, the inner die 6 is fixed to the other side of the septa 3 in the state where the support table 8 is provided on the inner side of the inner die 6 in one direction, ;
(e) forming a concrete wall body (9) constituting an outer wall body (10) of the building by placing concrete between the inner wall (120) of the outer thermal insulating material (100) and the inner wall (6);
(f) releasing the outer form fixing bolts (4) to separate the outer formwork (2) from the building outer insulating material (100) to expose the front face portion (110) of the building outer insulating material (100);
(g) attaching the mesh (11) to the front portion (110) of the exposed building thermal insulation material (100) using an adhesive mortar;
(h) A plastic cap (12) having a fastening bolt for fixing a mesh is fastened to one side of the three tie tie (3) from which the outer die fixing bolt (4) (110) of the heat insulating material (100);
(i) applying a cement adhesive mortar (13) to the entire surface of the mesh (11), finishing the cement adhesive mortar (13) and attaching a tile (14) as a finishing material; And
(j) separating the internal formwork fixing bolts (7) from the other side of the septic tie (3) and separating the internal formwork (6) from the concrete wall body (9); , &Lt; / RTI &
The building external thermal insulating material 100 includes a front portion 110 to which a finishing material or an exterior material is attached, a back portion 120 to be coupled to an outer wall of the building, and first to fourth side portions 130, 140, 150 and 160 A plurality of moisture permeable holes 112 are formed at a predetermined depth from the surface of the front surface portion 110 in the direction of the back surface portion 120 in order to discharge the humid air from the outside, The thickness t between the bottom portion 112a of the backside portion 112 and the backside portion 120 is set so that the equivalent air layer thickness Sd calculated corresponding to the moisture permeability resistance coefficient of the structure is less than 1 m. Wherein the depth of the moisture permeable hole (112) is determined by using the external heat insulating material for preventing mold and dew condensation.
The method according to claim 1,
A plurality of outer material joining recesses 111 extending in the horizontal direction are formed in the front face portion 110 in order to increase the coupling force with the mesh 11 attached through the adhesive mortar, One or a plurality of wall coupling grooves 121 closely contacting the concrete wall 9 are formed so as to be parallel to the coupling grooves 111. The outer casing coupling grooves 111 and the wall coupling grooves 121, Wherein each of the two side portions is recessed inward. The method according to any one of claims 1 to 3, wherein the outer insulation is made of an outer insulation material for preventing mold and dew condensation.
The method according to claim 1,
Characterized in that the structure is any one selected from foamed polypropylene (EPP), expanded polystyrene (EPS), extruded expanded polystyrene, foamed vinyl acetate (EVA), expanded polyethylene (PE) or foamed polyurethane (PU) A method for constructing an outer insulation using an outer insulating material for preventing mold and dew condensation having a moisture permeable ball.

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