KR100804677B1 - Waterproof layer and waterproof method using a self-adhesion type composite sheet - Google Patents

Abstract

A rooftop waterproofing layer and a rooftop waterproofing method using a self-adhesion type composite waterproof sheet are provided to increase durability of a building waterproof the rooftop of a building by waterproofing the rooftop of a building using self-adhesive type composite waterproof sheets, and to have a complex function of dew prevention, sound insulation and thermal insulation. A rooftop waterproofing method using a self-adhesion type composite waterproof sheet comprises the steps of: washing at high pressure or adjusting a concrete base material(10) of the rooftop of a building; forming a dew prevention layer(20) on the surface of the washed or adjusted concrete base material; forming a primer layer(30) by applying and curing primer on the dew prevention layer; forming a primary waterproofing layer by attaching plural self-adhesion type composite waterproof sheets(100) on the primer layer; forming a waterproof coating layer(50) by impregnating more than 100 percent waterproof coating materials on a non-woven fabric layer of the self-adhesion type composite waterproof sheet; and forming a top coating layer(60) by applying coating materials having strong weathering resistance on the waterproof coating layer.

Description

Waterproofing layer and waterproof method using a self-adhesion type composite sheet

The present invention relates to a rooftop waterproofing layer and a waterproofing method using a self-supporting composite waterproof sheet, a rooftop waterproofing layer and a waterproofing method using a self-contained composite waterproof sheet that can not only waterproof the roof of the building or the parking lot floor, but also heat insulation, condensation prevention, and soundproofing. It is about.

In general, the roof of a building made of reinforced concrete may be aging the building by rainwater infiltrates into the building.

Accordingly, the present invention further includes a waterproof layer formed of an asphalt sheet or a synthetic polymer sheet, or a waterproof layer formed by applying a coating waterproofing material such as rubber asphalt, acrylic, polyurethane, or the like.

However, in the case of forming a waterproof layer with a waterproof sheet, the seam between sheets is not only inconvenient to be manually sealed one by one by using a sealing material, heat sealing, connecting material, tape or rivet, etc. Due to the bonding, the sheet ruptured and there was a problem of leaking defects.

In addition, when the coating film waterproofing material is applied to form a waterproof layer, after the primer is applied, curing is performed for at least about 2 hours, divided coating is applied twice a waterproofing agent, and coating is applied at least twice for two hours. There was a problem in that it takes at least 4 days or more to form a waterproof layer, such as curing over 24 hours.

Therefore, in order to solve this problem, a method of forming a double waterproof layer by combining a waterproof sheet and a waterproof film has been developed in recent years.

However, this method still combines the seams between sheets using heterogeneous materials, so that the waterproof layer does not conform to the base material, and the base material is ruptured or lifted up when the base material is cracked due to the stretching behavior of a large amount of water according to the change of the outside temperature. Has

In addition, in order to solve this problem, a method of forming an insulating space between the base material and the waterproof layer without the close contact between the waterproof layer and the base material has recently been developed. However, this method must form the base layer for the insulating space using heterogeneous materials. By combining these base layers and the sheet-to-sheet joints with dissimilar materials, this method does not comply with cracks of the base substrate, and the construction method is complicated and expensive. There was a costly problem.

In addition, even if a small gap is formed in the base layer joint, the leakage is expanded through the insulating space, it is difficult to track the leak site, the cost of repair work is increased, and the durability of the building is also reduced.

In addition, this method did not provide a solution for drains, through pipes, parapets, and joints, which account for more than 80% of leaks.

In addition, even if the waterproofing is ensured, condensation caused by temperature difference between inside and outside may cause mold, become contaminated, and may be mistaken for waterproofing. There was a problem of insufficient insulation and condensation prevention.

The present invention has been made to solve such a problem, and an object of the present invention is to configure the seam between sheets using the same material with good elasticity and elongation, so that there is no need to worry about leakage of the seam between sheets, and the seams one by one. It is necessary to provide a waterproofing layer and a waterproofing method using a self-adhesive composite waterproof sheet, which does not need to be sealed, and the working method and working time can be much reduced compared with the prior art.

It is an object of the present invention to provide a waterproofing layer and a waterproofing method using a self-adhesive composite waterproof sheet which does not need to make an insulation space, the operation method is simple, the cost is low, and the building durability can be improved.

In addition, the object of the present invention is to maintain a constant physical properties regardless of the season and strongly adhered to the base substrate to prevent the moisture from accumulating between the waterproof layer and the base substrate and excellent self-retainability, flexibility, elongation of the roof joint To provide a waterproof layer and a waterproof method using a self-adhesive composite waterproof sheet capable of precise construction of the drain, the through pipe, the bent portion.

It is also an object of the present invention to provide a rooftop waterproofing layer and a rooftop waterproofing method using a self-adhesive composite waterproof sheet having elasticity and elongation that can be adapted to the behavior and cracks of a building rooftop structure.

In addition, it is an object of the present invention to provide a roof waterproofing layer and a roof waterproofing method using a self-adhesive composite waterproof sheet that can be utilized for good construction stability, economical and easy to repair because no exact smoothness of the base substrate is required.

In addition, the object of the present invention is to reduce the temperature difference between the indoor and outdoor and to prevent the temperature rise of the slab, the thermal insulation effect to prevent the occurrence of cracks due to freezing in winter, the building roof surface four seasons climate change and day crossing, freezing and melting due to temperature difference In response to this, it is possible to reduce the winter heating and summer cooling costs, and to provide a roof waterproofing layer and a roof waterproofing method using a self-contained composite waterproof sheet having a complex function such as condensation prevention, soundproofing, dustproof.

Waterproofing layer using a self-supporting composite waterproof sheet according to an embodiment of the present invention is a self-supporting composite waterproof sheet layer is also disposed on the base material and composed of at least one or more self-supporting composite waterproof sheet to be bonded to each other of the same material; And a coating layer waterproofing material layer formed to reinforce the self-adhesive composite waterproofing sheet layer by impregnating an environmentally friendly inorganic coating waterproofing material in the depth direction inside the self-supporting composite waterproofing sheet layer.

It is characterized in that it further comprises a condensation prevention layer which is applied to the front surface of the base material to prevent condensation.

According to an embodiment of the present invention, the self-adhesive composite waterproof sheet is composed of a surface protection film layer excellent in elongation, tensile strength, abrasion resistance, chemical resistance, self-adhesive self-synthetic rubber layer, and a non-woven fabric layer, inorganic elastic coating waterproofing material The layer is impregnated to the nonwoven fabric layer, and is completely integrated without surface protection and UV protection, and the rooftop waterproofing layer can be easily used for not only new construction work but also repair work.

In addition, according to an embodiment of the present invention, the self-contained composite waterproof sheet and the inorganic elastic film waterproofing material layer having a good thermal insulation effect on the anti-condensation layer is laminated, the soundproof, soundproof, dustproof, heat insulation, condensation prevention effect is sure. It has excellent self-adhesion property, excellent workability, and combines aesthetics and economics.

In addition, according to an embodiment of the present invention, the self-repairing properties by using a reinforcing sheet portion made of a surface protection film layer and a self-adhesive self-synthetic rubber layer having excellent elongation, tensile strength, wear resistance, chemical resistance and flexibility This superior, advantageous for refurbishment of the old floor layer, no need for protective mortar and pressed concrete layer, the waterproof layer can be constructed.

In addition, according to an embodiment of the present invention, the self-adhesive composite waterproof sheet does not require exact smoothness of the floor, and strongly adheres to any base material, so that the existing waterproof layer does not need to be removed during repair work, and thus, demolition cost and waste are generated. In addition, it is possible to provide a waterproof layer that is simple in construction, secure in waterproofness, and inexpensive in construction cost and long in life.

In addition, according to an embodiment of the present invention, since the impregnated coating waterproofing material along the upper surface of the self-adhesive composite waterproof sheet, anyone with a construction experience can easily construct, and because it can provide a waterproof layer having a certain thickness as a whole construction quality is great.

Hereinafter, a method of forming a waterproof layer and a waterproof layer using a self-supporting composite waterproof sheet according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4.

1 to 4, the roof waterproof layer 1 according to an embodiment of the present invention is a high-pressure cleaning or ground clearance of the concrete base material 10 on the roof of the building (S10).

Subsequently, as shown in FIG. 1, the condensation preventing layer 20 may not be formed. As illustrated in FIG. 2, a building that needs to prevent condensation caused by an internal and external temperature difference will be described in detail later. The condensation prevention layer 20 is formed so as to be in full contact with the surface of the concrete base substrate 10 cleaned or not cleaned under high pressure (S20).

The primer layer 30 may be formed by coating and curing the primer on the condensation preventing layer 20 as a whole (S30). At this time, it is preferable that the primer is an aqueous primer rather than an organic solvent harmful to the human body.

The condensation prevention layer 20 is 5 to 25% by weight waste styrofoam powder, 18 to 22% by weight waste tire powder, 8 to 12% by weight waste fossil powder, 23 to 27% by weight volcanic powder, 13 to 17% by weight white cement It can also be configured by mixing and applying 13 to 17% by weight of general cement.

The condensation prevention layer 20 has a soundproof function as well as a condensation prevention, insulation, heat insulation function due to the configuration as described above.

In addition, when the acrylic adhesive per 1kg of the anti-condensation insulating material powder is mixed and applied in a ratio of 0.5 ~ 0.7l, it is strongly adhered to the upper surface of the concrete base material, so that moisture is not exposed toward the waterproof layer from the upper surface of the concrete base material, The remaining sides of the substrate can be allowed to evaporate slowly.

In addition, when the condensation prevention layer 20 is constructed to a thickness of about 5 mm or more, it makes it easy to construct a self-adhesive composite waterproof sheet to be described later by making the aged concrete base material horizontal.

That is, according to an embodiment of the present invention, when the concrete base material is aged, instead of constructing mortar, a condensation prevention layer 20 may be formed at a similar construction cost to add condensation prevention, insulation, and heat insulation.

In addition, as can be seen with reference to Table 1, according to an embodiment of the present invention, in addition to the anti-condensation layer 20 is further provided with a self-adhesive composite waterproof sheet layer 100 and an environmentally friendly inorganic coating waterproofing layer (50) By reinforcing the insulation and condensation preventing function, it is possible to perform condensation prevention with only a thinner condensation preventing layer 20.

Referring to Table 1, when only the condensation preventing layer 20 is formed, condensation is prevented by forming at least about 10 mm thick, but it can be seen that condensation is prevented even when the thickness of the condensation preventing layer 20 is about 5 mm. .

   Experimental conditions (1 atm, internal and external temperature difference 25 ℃ to 5 ℃) / thickness Experimental Example (Condensation Prevention Layer + Composite Waterproof Sheet + Coating Waterproofing Layer) Comparative Example (Condensation Prevention Layer) 5 mm O (condensation prevention) X (condensation) 10 mm O O 15 mm O O 20 mm O O

Subsequently, the plurality of self-adhesive composite waterproof sheets 100 face each other on the primer layer 30 to form a primary waterproof layer (S40).

Self-adhesive composite waterproof sheet 100 according to an embodiment of the present invention is a self-adhesive synthetic rubber layer 110 composed of a butyl rubber layer or self-adhesive asphalt rubber layer having a uniform thickness of about 0.5mm to 3.0mm and The surface protection film layer 120 for protecting the surface of the self-adhesive synthetic rubber layer 110 and a nonwoven fabric layer 130 formed on the surface of the surface protection film layer 120 by about 1.0 mm or more. . At this time, the thickness of the nonwoven fabric layer 130 is determined corresponding to the thickness of the coating layer waterproof material layer 50 to be impregnated in the nonwoven fabric layer 130.

Therefore, even if the environmentally friendly inorganic film waterproofing material is not a skilled worker to fill the nonwoven fabric layer 130 so as to form a uniform coating waterproofing material layer 50 can be improved construction stability.

The self-adhesive synthetic rubber layer 110 is formed by a homogeneous coating on the lower surface of the surface protection film layer 120, the nonwoven fabric layer 130 is almost the surface protection by laminating the upper surface of the surface protection film layer 120 It is configured to be integrated with the film layer 120.

The release paper layer 150 is attached to the other surface facing the surface on which the surface protective film layer 120 is coated on the self-adhesive synthetic rubber layer 110, and is easily transported to a predetermined place and the release paper layer 150 ) To be used separately.

Self-adhesive synthetic rubber layer 110 of the self-adhesive composite waterproof sheet 100 according to an embodiment of the present invention is 18% by weight of unvulcanized butyl rubber, 10% by weight of carbon reinforcing agent, 1% by weight of plasticizer, 25% by weight of additives, and It is made by mixing 46% by weight of bicarbonate filler and applying it uniformly.

The filler may be selected from the group consisting of talc, carbon black, calcium carbonate, and mixtures thereof.

The plasticizer may be used dioctylphthalate, dibutyl phthalate, diisononyl phthalate, citric acid ester, texanol / ester alcohol and the like, these may be used alone or in combination of one or more.

In addition, the additive may include rosin (rosin), stearic acid as a lubricant and these may be used alone or in combination of one or more.

The self-adhesive synthetic rubber layer 110 configured as described above is not sensitive to temperature change, has good durability and weather resistance, has strong adhesion to all kinds of base materials, and does not react with acid or alkali, and has good elasticity and elongation, so It acts accordingly and has self-retaining ability to prevent breakage of the waterproof layer.

Therefore, the self-supporting composite waterproof sheet 100 may be in close contact with the front surface of the concrete base material, so that water does not ride between the sheet and the base material, and the waterproof layer and the base material are not likely to lead to leakage unless the perforation or cracking occurs together. Is reduced.

In addition, the surface protection film layer 120 is preferably composed of an environmentally friendly thermoplastic polyurethane (TPU) film layer to compensate for the elongation and tensile strength lacking only in the self-adhesive synthetic rubber layer 110, cracking behavior occurs on the base substrate In the case of high elasticity and high elongation, it behaves like the base material to prevent breakage of the waterproof layer, protects the self-adhesive synthetic rubber layer 110 which is weak to ultraviolet rays, and extends the waterproof life by more than five times the wear resistance and watertightness of the general film. Can be.

In addition to the thermoplastic polyurethane (TPU), the surface protection film layer 120 may include high density polyethylene (HDPE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC), and ethylene-propylene-diene copolymer (EPDM). One of a film, polyethylene film (PE), polyester film, and polyethylene terephthalate (PET) film can be selected and used.

The nonwoven fabric layer 130 may be formed of 150 to 250 g of heat resistant polyester fiber having a melting point of about 170 ° C. or higher and 0 to 100 g of a low temperature molten fiber having a melting point of about 130 ° C., such as PP (polypropylene) or PE fiber, up to 3 to 2 By mixing and laminating at a ratio, it can be formed in consideration of the thickness of the desired coating waterproof material layer 50 in a structure that is not separated from each other but entangled with each other like a mesh.

The nonwoven fabric layer 130 prepared as described above maintains a void shape by resin-processing or heat-treating one surface thereof. Therefore, shrinkage or deformation of the pore shape can be prevented, and the coating waterproof can be sufficiently impregnated. In addition, by preventing the raising of the surface of the nonwoven fabric layer 130, the coating film waterproofing material and the nonwoven fabric may be entangled to generate unevenness, thereby deteriorating aesthetic appearance or falling off of the uneven surface during walking, thereby preventing damage to the waterproof layer.

In addition, when forming the nonwoven fabric layer 130, mixing the low-temperature molten fiber is when the low-temperature molten fiber is laminated to the surface protective film layer 120 and the nonwoven layer 130, the surface protective film layer ( To be melt tightly pressed together with 120 to be integrally and firmly coupled. In addition, impregnating the coating waterproofing material by reducing the surface raising feeling of the nonwoven fabric layer 130 during the resin processing or heat treatment can be properly smooth and slippery can be prevented. Therefore, unlike the prior art, it is not necessary to spray the silica sand on the upper surface of the waterproof layer. In addition, the nonwoven fabric layer 130 may be printed in green to prevent glare even when the self-supporting composite waterproof sheet 100 is installed outdoors.

The coating layer waterproofing material is impregnated with a rake or the like 100% or more on the nonwoven fabric layer 130 formed as described above to form the coating waterproofing layer 50 (S50).

That is, according to an embodiment of the present invention, the coating film waterproofing material layer 50 is formed so as to impregnate the self-adhesive synthetic rubber layer 110 through the nonwoven fabric layer 130 in the height direction (Z-axis direction of FIG. 1). Thus, the film waterproofing material can completely connect and reinforce the nonwoven fabric layer 130 and the self-adhesive synthetic rubber layer 110.

According to an embodiment of the present invention, since the nonwoven fabric layer 130 and the self-adhesive synthetic rubber layer 110 are completely connected and reinforced by the coating waterproofing material, the coating waterproofing material is conventionally applied only to the surface of the nonwoven fabric layer 50 after construction. The coating waterproofing layer 50 can be prevented from being separated.

In addition, since the coating waterproof layer 50 is formed at 100% or more relative to the thickness of the nonwoven fabric layer 130, the nonwoven fabric and coating waterproofing material may be entangled with each other to reduce cracks and compensate for tensile strength and elongation.

In addition, in the related art, when coating the waterproofing material according to the curvature of the base surface or the skill of the operator, a deviation occurred in the thickness of the waterproofing material layer, and thus stable quality could not be expected. Thus, the nonwoven fabric layer 130 was formed as described above. By forming the film waterproof material layer 50 impregnated in the height direction inside the nonwoven fabric layer 130, it is possible to obtain a uniform film waterproof material layer 50 to ensure more stable construction quality.

The coating waterproof layer 50 is an inorganic elastic coating waterproofing material, cement-based polymer waterproofing material, urethane coating waterproofing material, tar urethane coating waterproofing material, exposed urethane coating waterproofing material, hydration reaction type urethane, one-component type urethane, high rigid urethane, And soft urethane waterproofing agents. Preferably, it is formed by impregnating an environmentally friendly inorganic elastic film waterproofing material.

By uniformly coating a coating agent resistant to weathering such as ultraviolet rays on the coating waterproofing layer 50 to form a top coating layer 60 (S60), there is no step, there is no change in physical properties due to rainfall, snow, wind, freeze melting action, etc. Little secondary waterproof layer can be formed. Applicants are studying the coating layer waterproofing layer 50 which does not need to coat the top coating layer 60 separately.

Now, a brief look at the configuration of the self-supporting composite waterproof sheet according to a modified embodiment of the present invention with reference to Figures 5a and 5b, used in the roof waterproofing method according to a modified embodiment of the present invention with reference to Figures 6a to 6c. I will explain the seamless combination of self-supporting composite waterproof sheet.

First, as shown in Figure 4a, the self-supporting composite waterproof sheet 100 'according to a modified embodiment of the present invention reinforces one end of the self-supporting composite waterproof sheet 100 according to an embodiment of the present invention Part 103 according to an embodiment of the present invention except that it comprises only a self-adhesive synthetic rubber layer to be able to reinforce the other end 101 at the joint between the two self-adhesive composite waterproof sheet (100 ') Since the same as the composite composite waterproof sheet 100, detailed description will be omitted.

The self-supporting composite waterproof sheet 100 ′ may further include a release paper layer 150 on the upper surface of the reinforcing sheet portion 103 to facilitate transportation and use at a predetermined place.

In addition, as shown in FIG. 4B, the self-supporting composite waterproof sheet 100 ″ according to the modified embodiment of the present invention is self-synthesizing with the nonwoven fabric layer 130 laminated integrally with the surface protection film layer 120. By arranging the rubber layers 150 to be offset from each other, one end portion 105 is composed of only the nonwoven fabric layer 130 integrally laminated with the surface protection film layer 120 and the other end 103 'is a self-adhesive synthetic rubber layer ( 110).

The self-adhesive composite waterproof sheet 100 " further includes a release paper layer on the upper surface of the other end 103 'to facilitate transportation and use at a predetermined place.

That is, as shown in Figure 6a, the reinforcing sheet portion 103 of one self-supporting composite waterproof sheet 100 'according to a modified embodiment of the present invention is another of the other self-supporting composite waterproof sheet (100') The self-adhesive synthetic rubber layer 110 of the reinforcing sheet portion 103 and the release paper layer 150 of the other self-adhesive composite waterproof sheet 100 ′ exposed to each other by being overlapped and simply pressed to reinforce the end 101. The self-adhesive synthetic rubber layer 110 may be integrally combined.

In addition, as shown in Figure 6b, in the seam between a plurality of self-supporting composite waterproof sheet 100 according to an embodiment of the present invention, the reinforcing sheet portion 103 composed of a self-adhesive synthetic rubber layer 110 first Attached on the primer layer 30 or the condensation prevention layer 20 (S35), the plurality of self-supporting composite waterproof sheet 100 may be coupled to each other to reinforce the joint.

Even in this case, since the self-adhesive synthetic rubber layer 110 of the reinforcing sheet part 103 and the other self-supporting composite waterproof sheet 100 is flexible and is made of the same material, it can be closely adhered to each other without any gap.

In addition, as shown in Figure 6c, by using the self-adhesive composite waterproof sheet 100 "according to a modified embodiment of the present invention, and the surface protection film layer 120 of the one self-contained composite waterproof sheet 100" and The one end 105 and the other end 103 ′ composed of the self-adhesive synthetic rubber layer 110 of the other self-adhesive composite waterproof sheet 100 ″ are integrally laminated with only the nonwoven layer 130 integrally laminated so as to overlap each other. Accordingly, the plurality of self-supporting composite waterproof sheets 100 "may form a waterproof sheet layer without a step, and the joints of the plurality of self-supporting composite waterproof sheets 100" may not be exposed to the outside to reinforce the joint. have.

On the other hand, since the reinforcement sheet 103 has a high elasticity and high elongation, and closely coupled along the curved portion such as various joints, drains, through pipes, parapets, the self-supporting composite waterproof sheet (100, 100 ', 100 "). ) Can be completely eliminated.

Hereinafter, the test results of the waterproof layer using the self-supporting composite waterproof sheet according to an embodiment of the present invention are shown in Table 2.

1 is a perspective view partially showing the roof waterproof layer using the self-supporting composite waterproof sheet according to an embodiment of the present invention.

Figure 2 is a perspective view showing a partially cut rooftop waterproofing layer using a self-supporting composite waterproof sheet according to a modified embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view for showing the configuration of the roof waterproofing layer of FIG. 2.

4 is a flowchart schematically illustrating a roof waterproofing method using a self-supporting composite waterproof sheet according to an embodiment of the present invention.

5A and 5B are cross-sectional views illustrating the structure of a self-supporting composite waterproof sheet according to a modified embodiment of the present invention, respectively.

6a to 6c are schematic cross-sectional views for explaining a seamless coupling of the self-supporting composite waterproof sheet used in the roof waterproofing method according to a modified embodiment of the present invention, respectively.

Claims (18)

A self-supporting composite waterproof sheet layer which is also disposed on the base material and is also composed of at least one self-supporting composite waterproof sheet, in which joints of the same material are attached to each other; And Roof coating waterproof layer using a self-adhesive composite waterproof sheet comprising a; a waterproof film layer formed to reinforce the self-adhesive composite waterproof sheet layer by impregnating an environment-friendly inorganic coating waterproofing material in the depth of the self-supporting composite waterproof sheet layer. The method of claim 1, The rooftop waterproof layer further includes a condensation prevention layer applied to the entire base material to prevent condensation. The method of claim 1, The self-adhesive composite waterproof sheet layer is a self-synthesizing synthetic rubber layer selected from one of a self-adhesive asphalt rubber layer or a butyl rubber layer, a surface protection film layer for protecting the surface of the self-adhesive synthetic rubber layer from the ultraviolet, and the upper surface protective film layer integrally Roof waterproof layer using self-contained composite waterproof sheet containing a laminated non-woven fabric layer. The method of claim 2, A roof layer waterproof layer using a self-adhesive composite waterproof sheet further comprising a primer layer selectively applied on the condensation preventing layer and a top coating layer selectively top coated on the coating waterproofing layer. The method of claim 3, wherein The nonwoven fabric layer is a rooftop waterproof layer using a self-adhesive composite waterproof sheet formed by mixing a heat-resistant polyester fiber and a low-temperature molten fiber having a melting point of about 170 ° C. or more at a mixing ratio of up to 3: 2. The method of claim 3, wherein The nonwoven fabric layer is a rooftop waterproof layer using a self-supporting composite waterproof sheet, one surface of which is heat treated or resin processed.   The method of claim 3, wherein The surface protective film layer is a thermoplastic polyurethane film (TPU), high density polyethylene (HDPE), polyethylene (LLD PE), ethylene vinyl acetate (EVA), polyvinyl chloride (PVC) and ethylene-propylene-diene copolymer (EPDM) Film, polyethylene terephthalate (PET) The rooftop waterproof layer using a self-adhesive composite waterproof sheet consisting of one or more selected from the group consisting of a film.  The method of claim 3, wherein The coating waterproof layer has a thickness corresponding to the nonwoven fabric layer, a rooftop waterproof layer using a self-adhesive composite waterproof sheet having a volume of 120% of the nonwoven fabric layer.  The method of claim 3, wherein The coating layer waterproofing layer is inorganic elastic coating waterproofing material, cement mixed polymer waterproofing material, urethane coating waterproofing material, tar urethane coating waterproofing material, and exposed urethane coating waterproofing material, hydration reaction type urethane, 1 liquid type urethane, high rigid urethane, soft urethane Roof waterproof layer using a self-adhesive composite waterproof sheet formed impregnated with a coating waterproofing material selected from the group consisting of a waterproofing agent.   The method of claim 3, wherein One of the anti-condensation layer or the primer layer is provided with a reinforcing sheet part comprising a self-synthetic synthetic rubber layer and the surface protection film layer under the plurality of self-contained composite waterproof sheet joints to reinforce the joint between the self-contained composite waterproof sheet. Roof waterproof layer using self-adhesive composite waterproof sheet. In the rooftop waterproofing method using a self-adhesive composite waterproof sheet, Cleaning the base material under high pressure, not cleaning; Forming a self-supporting composite waterproof sheet layer by arranging the at least one self-supporting composite waterproof sheet to which the joints of the same material adhere to each other on the batter substrate; And Impregnating an environmentally friendly inorganic coating waterproofing material in the depth of the self-supporting composite waterproof sheet layer to form a coating waterproofing layer to reinforce the self-supporting composite waterproof sheet layer roofing waterproof method using a self-supporting composite waterproof sheet. The method of claim 11, Before forming the self-contained composite waterproof sheet layer, by curing the condensation-preventing heat insulating material on the base substrate by about 5mm or more to form a condensation prevention layer further comprising the step of forming a condensation-resistant waterproof sheet. The method of claim 11, Forming a primer layer by applying a primer on the entire surface of the anti-condensation layer before forming the self-adhesive composite waterproof sheet layer; And Roof coating method using a self-adhesive composite waterproof sheet using a self-contained composite waterproof sheet further comprising the step of forming a top coating layer by top coating the upper surface of the coating waterproofing layer. The method of claim 11, The self-supporting composite waterproof sheet comprises a self-synthesizing synthetic rubber layer, a surface protective film layer for protecting the surface of the self-synthetic synthetic rubber layer from ultraviolet rays, and a nonwoven fabric layer integrally laminated on the surface protective film layer. When, the roof waterproofing method using a self-supporting composite waterproof sheet which is coupled to one end of the self-supporting composite waterproof sheet. The method of claim 14, The roof waterproofing method using a self-adhesive composite waterproof sheet further comprising a reinforcing sheet portion made of the self-adhesive synthetic rubber layer on the condensation preventing layer or the primer layer to reinforce the joint before facing one end of the self-adhesive composite waterproof sheet. The method of claim 11, When the self-supporting composite waterproof sheet has a surface protective film layer, one end consisting of a non-woven fabric layer laminated integrally on the upper surface protective film layer, and the other end of the self-adhesive synthetic rubber layer corresponding to the one end Self-contained composite waterproof sheet using self-contained composite waterproof sheet in which one end of one self-contained composite waterproof sheet and the other end of the other self-contained composite waterproof sheet are faced to each other so that the layer of self-contained composite waterproof sheet is formed to reinforce the seam without step difference. Roof waterproofing method using sheet. The method according to claim 14 or 16, The nonwoven fabric layer is waterproof roofing method using a self-adhesive composite waterproof sheet at least one surface of the resin processing or heat treatment. At least one self-adhesive composite waterproof sheet disposed on a base material and having joints of the same material fixed to each other is also configured, wherein the self-adhesive composite waterproof sheet comprises a self-adhesive synthetic rubber layer selected from a self-adhesive asphalt rubber layer or a butyl rubber layer, and On the self-adhesive composite waterproof sheet layer comprising a surface protective film layer for protecting the surface of the self-adhesive synthetic rubber layer, a non-woven fabric layer laminated integrally on the top surface of the surface protective film layer, and the self-contained composite waterproof sheet layer Roof waterproof layer using a self-adhesive composite waterproof sheet comprising a top coating layer to be top coated.

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