KR100711107B1 - Construction method of exposure composite waterproof structure - Google Patents

Abstract

The present invention relates to an exposure type waterproof construction method, the present invention is to be installed while strongly adhesively adhered to the entire area of the base concrete, the waterproof sheet of the non-vulcanized rubber base in the tackiness state, the connection portion between the sheet and the sheet Completely united integrally to maintain uniform and flat thickness, or connect the joints integrally and then reinforce and attach a narrow thin unvulcanized rubber band to the upper part. The coating is completed by applying a thin layer of paint or urethane, an acrylic inorganic coating waterproofing agent, a resin mortar, or the like to achieve a flat and beautiful waterproof construction effect.

Description

Construction method of exposed composite waterproof structure {CONSTRUCTION METHOD OF EXPOSURE COMPOSITE WATERPROOF STRUCTURE}

1 is a flow chart showing a construction method for waterproofing according to an embodiment of the present invention;

2 is a cross-sectional view showing an exposed composite waterproof structure constructed in accordance with the construction method;

3 is a flow chart showing another construction method for waterproofing according to an embodiment of the present invention;

4 is a cross-sectional view showing an exposed composite waterproof structure constructed in accordance with the construction method;

5 is a view for explaining a modified embodiment according to the second embodiment;

FIG. 6 is a view showing an exposed composite waterproof structure in which a composite unvulcanized rubber sheet is constructed according to a connection method using a unvulcanized rubber band in a first embodiment; FIG.

FIG. 7 is a view illustrating an exposed composite waterproof structure in which a composite unvulcanized rubber sheet is constructed according to a connection method using an unvulcanized rubber stirring material in a second embodiment; FIG.

8 is a flowchart for explaining a construction method according to a third embodiment of the present invention;

9 is a view showing a waterproof construction of the edge portion in the third embodiment;

10 to 12 are views showing an exposed composite waterproof structure according to a fourth embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

112: first primer layer

114: waterproof sheet

116: second primer layer

118: Migaru rubber band

120: liquid film waterproofing agent

The present invention relates to a method for constructing an exposed composite waterproof structure that can prevent water from penetrating into the roof of a building structure. More specifically, when the waterproofing material is classified into the use of the waterproofing material, the waterproofing material and the non-exposing waterproofing material are used. Can be divided into a waterproof material, the present invention relates to a construction method of the exposed composite waterproof structure.

In recent years, the rooftop waterproofing construction of building structures has been increasing as a waterproofing material for exposure, and as a waterproofing material for exposure, it has been mainly molded and vulcanized EPT rubber sheet, rubberized asphalt sheet sheet waterproofing material or urethane coating waterproofing material, acrylic emulsion zone Inorganic coating waterproofing agent containing silica sand and glass powder was added as a waterproofing material for exposure.

Molded and vulcanized rubber sheet is the main material of rubber, and it is cooked to produce the sheet, so it has elasticity, tensile strength and elongation, which are the original characteristics of rubber, so it is excellent in impact prevention and has excellent properties such as chemical resistance, weather resistance and aging resistance. As very good. However, the construction of the connection part between the sheet and the sheet is difficult, and there are many cases of incomplete adhesion of the connection part, resulting in loss of waterproof function due to leakage of the connection part.

Rubberized asphalt sheet also tends to be avoided due to frequent defects caused by poor connection of the sheet waterproofing agent. Especially, when used for exposure, it is vulnerable to solar heat and ultraviolet rays and loses waterproofing function due to premature deterioration. It is impossible to apply it as a waterproofing agent for exposure because there is a closed end.

In particular, after the waterproofing on the roof, the surface should be flat to make it look good, and even if it rains, the rainwater should be well drained, but when the sheet waterproofing agent such as vulcanized rubber sheet or rubberized asphalt sheet is used for exposure, the joint is connected. Due to the high step of the site is not flat because it is rainy, rainwater, etc., there is a closed end, and in appearance it is not good to see a severe bend is formed.

As a method of eliminating the defects of the sheet waterproofing agent, an exposure coating waterproofing agent which is applied by applying a urethane coating waterproofing agent or an inorganic coating waterproofing agent of a water-soluble acrylic material is used. However, the exposure coating waterproofing agent also has adhesiveness with the base concrete. Although there is an advantage that a flat waterproof layer without three is formed and a beautiful appearance after construction, the coating waterproofing material is difficult to construct and requires a lot of construction periods by repeatedly constructing it repeatedly to form a constant waterproof layer. While it was difficult to form a waterproof layer of a constant thickness was the end.

In addition, after applying urethane coating waterproofing agent and inorganic coating waterproofing agent, which are exposed waterproofing agent, on the roof of building, it is aging and deteriorated by solar heat and ultraviolet rays after 3-4 years. In order to install with urethane waterproofing or inorganic coating waterproofing, the existing waterproofing layer should be rolled out and installed, which increases the cost of waterproofing and doubles it every three to four years until the life of the building is over. Of course, there are cumbersome closures for renovation.

The present invention is to solve such a conventional problem, the object is to provide a construction method for easy and simple waterproofing to provide a permanent and stable waterproofing.

It is an object of the present invention to obtain the effect that the entire surface is integrally bonded to the base concrete as an adhesive unvulcanized rubber sheet waterproofing material, but the flat construction without bending, excellent physical properties and long durability of the sheet waterproofing agent The upper layer is applied by applying a liquid paint to which a colorful color is applied, or by applying a primer to the upper layer and applying silica sand to attach the silica sand, and then applying a liquid urethane top coating agent or an epoxy top coating agent. By completing the above, the waterproofing construction at a low cost and a short time is to provide a construction method of a new type of exposed composite waterproof structure that obtains a horizontal and flat appearance and beautiful and effective exposure waterproof construction effect.

Another construction method of the present invention is a composite of at least one of a sheet of a polymer material, a sheet in which a polymer material is released, a sheet of a natural fiber material, a sheet of a synthetic fiber material, and a non-vulcanized adhesive rubber attached to the top thereof. While the base uncured rubber sheet is not bonded to the base concrete and the base concrete and the composite uncured rubber sheet are separated from each other, the combined uncured rubber sheet and the combined uncured rubber sheet are integrally and flatly joined together. The de-base is installed one by one in a certain area, so that the moisture contained in the ground concrete is released, so that the construction effect is flat and free of bending, and then the liquid layer is applied to the upper layer or the liquid paint is applied to the upper layer. Spray the silica sand while applying the primer to attach the silica sand to the upper layer, and then the liquid urethane top coating or epoxy top coating By applying the construction to complete, and to a waterproof construction appearance state it provides a construction method of a surface-type water resistant composite structure to obtain a beautiful and perfect waterproof construction is also effective but in the horizontal plane.

A feature of the present invention for achieving the above object is to construct a waterproof sheet of the vulcanized rubber base in the state of adhesiveness strongly adhered to the entire area of the base concrete, while the sheet and the connecting portion of the sheet is integrally complete After the construction, the thickness is uniform and flat, or the joints are integrally joined. Then, the narrow and thin unvulcanized rubber band is reinforced and adhered to the joined upper part. Complete the construction by applying top coating such as paint or urethane, acrylic inorganic coating waterproofing agent, resin mortar, or spraying silica sand while applying primer on it, and then completing the construction by urethane top coating on top of it. And beautiful waterproof construction effect.

In addition, another feature of the present invention is a composite sheet having a sheet of a polymer material, a sheet foamed with a polymer material, a sheet made of a natural fiber, a sheet made of a synthetic fiber material as a lower layer, and an unvulcanized rubber sheet on the upper layer As described above, the sheet-to-sheet is integrally and flatly bonded as in the above-described construction method, and then the flat coating without bending is applied, and then a liquid coating film having a color impartment is applied to obtain a flat and beautiful waterproofing effect. .

Another feature of the present invention, after the waterproof sheet of the non-vulcanized rubber main material in the tackiness state is added with a vulcanizing agent by the construction method as described above, the unvulcanized rubber is slowly vulcanized at room temperature and molded and vulcanized By converting to rubber to exhibit the original properties and physical properties of the rubber, it shows the effect of the construction of the molded vulcanized rubber sheet while showing a flat and beautiful waterproof effect by the coating on the top.

The construction method for waterproofing to achieve the above object comprises the steps of: pre-treating a predetermined surface (base concrete) of the structure for waterproofing; Applying a first primer on the face; Attaching the waterproof sheet to the unvulcanized rubber sheet having a predetermined thickness on the primer layer such that the connecting portions are integrally and flatly connected; Forming a second primer layer by applying a primer on the connection part of the waterproof sheet; Attaching a thin vulcanized rubber band (or glass fiber mesh) on top of the second primer layer; Sprinkling silica sand while forming a third primer layer on the waterproof sheet; At least one of a liquid urethane coating waterproofing agent (or epoxy coating waterproofing agent) is coated on top of the silica sand with a top coating or a liquid paint, a urethane coating waterproofing agent, an acrylic inorganic coating waterproofing agent, and a resin morter on the waterproofing sheet. Applying one to the top coating.

In addition, another construction method for achieving the above object comprises the steps of pre-treating a predetermined surface of the structure for waterproofing; Applying a primer on the face; Attaching the adhesive non-vulcanized rubber sheet and the rubber sheet of a predetermined thickness on the primer layer so as to have a spacing of 5-8 mm; Filling an uncured rubber agitator in a putty state (dough porridge) in a recessed portion of the 5-8 mm gap between the unvulcanized rubber sheet and the sheet to connect the unvulcanized rubber sheet and the sheet integrally and flatly; Sprinkling and attaching silica sand while forming a second primer layer on top of the waterproof sheet and the sheet connection portion; At least one of a liquid urethane coating waterproofing agent (or epoxy coating waterproofing agent) is coated with a top coating on top of the silica sand, or a liquid paint, a urethane coating waterproofing agent, an acrylic inorganic coating waterproofing agent, and a morter of liquid coating on the waterproofing sheet. Applying one to the top coating.

According to the construction method for waterproofing of the present invention, while applying the sheet waterproofing agent can obtain the effect of the flat construction without the step of the connection joint of the sheet waterproofing agent while applying a finish of a beautiful color, it is a good waterproof construction While obtaining the effect, it is possible to give a permanent and stable waterproofing by the properties of the unvulcanized rubber sheet.

For example, the embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited by the embodiments described below. These examples are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shape of the elements in the drawings and the like are exaggerated to emphasize a clearer description.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 12. In addition, in the drawings, the same reference numerals are denoted together for components that perform the same function.

DETAILED DESCRIPTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flow chart showing a construction method for waterproofing according to an embodiment of the present invention, Figures 2a and 2b is a cross-sectional view showing an exposed composite waterproof structure constructed in accordance with the construction method.

1 to 2b, the construction method for waterproofing according to an embodiment of the present invention is a pretreatment step (s12), primer coating step (s14), waterproof sheet attachment step (s16), of the waterproof sheet 114 Applying the second primer 116 on the upper portion of the connection portion and attaching a thin rubber band 118 of the thin rubber layer 118 thereon (s18-s20), the liquid colored paint or coating waterproofing material 120 on the waterproof sheet Applying a thin layer (s22) and finally applying a top coating.

As another construction method, the pretreatment step (s12), the primer coating step (s14), the waterproof sheet 114 attaching step (s16), the second primer 116 is applied to the upper portion of the connection of the waterproof sheet 114 And proceed to the same to the step (s18-s20) of attaching a light-weight rubber band 118 having a thin thickness thereon, and then the silica sand 119 while applying a third primer 117 on the waterproof sheet Spraying and attaching (s24, s26); And applying a liquid urethane coating waterproofing agent (or epoxy coating waterproofing agent) 120 to the top coating with the silica sand 119 attached thereto (s28).

In the pre-treatment step (s12), the racetan removal, the removal of the beams, the cleavage repair, the moisture removal, etc. of the surface of the structure (base concrete; 10) for waterproofing are performed. In the primer applying step s14 performed after the pretreatment step s12, the primer is applied on the surface to form the first primer layer 112. The primer is applied by a spray or a roll-brush or a brush, and the amount of the primer applied is about 0.3-0.5 L / m 2.

The waterproof sheet attaching step (s16) is a waterproof sheet of the non-vulcanized rubber material, the waterproof sheet of the unvulcanized rubber material that is converted to room temperature vulcanization by adding a vulcanizing agent in a sticky dough state, the waterproof sheet of any one of the rubberized asphalt (114) Can be used. Attaching the end of the waterproof sheet 114 to the end of the waterproof sheet 114, the second primer 116 is applied thinly to the upper connection portion of the waterproof sheet 114, and then an unvulcanized rubber band having a thickness of 0.5-1 mm at a width of 100 mm 118 is attached so that the waterproof sheet 114 is connected flat. Attaching by spraying (spraying) the silica sand 119, which is standard No. 5, by applying a third primer 117 to the upper portion of the waterproof sheet to which the unvulcanized rubber band 118 is attached (s24, s26); A liquid urethane coating waterproofing agent (or epoxy coating waterproofing agent) is applied to the upper part of the silica sand 119 to the top coating to finally apply 0.2 to 0.5 mm (s28) (see FIG. 2B), or the unvulcanized rubber band 118 ) And a liquid and colored coating waterproofing agent 120 (paint, urethane coating waterproofing agent, acrylic inorganic coating waterproofing agent, resin mortar, etc.) is applied to the upper part of the waterproof sheet to a thickness of 0.3-1 mm, and then further applied. After the coating waterproofing agent 120 is dried, the top coating is finally applied to a thickness of 0.2-0.3 mm.

Exposed composite waterproof structure as shown in Figure 2b is a silica sand 119 is sprayed to have a sun block effect and UV block effect to help prevent the aging of the rubber sheet. In addition, a beautiful color can be maintained by top coating on the silica sand 119 layer. In particular, even when the rubber band is attached by the silica sand layer, the level difference does not disappear and the flatness is improved.

3 is a flow chart showing another construction method for waterproofing according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing an exposed composite waterproof structure constructed in accordance with the construction method.

In the construction method according to the second embodiment, the surface of the structure for waterproofing, the removal of racetans, removal of pebbles, cleavage repair, moisture removal, etc. are performed (s32), and about 0.3-0.5 L / m2 with the spray, brush, and roller. After applying the primer (s34), 2-3 mm thick waterproof sheet 114 on the applied primer layer is spaced apart so that 5-8mm interval (s36). While filling the recessed portion between the waterproof sheet 114 with a rubber spatula or a wide spatula of a putty-free rubber agitator 122 to fill the flat shape so as to be the same as the thickness of the waterproof sheet.

After coating any one of a liquid paint, a urethane coating waterproofing agent, an acrylic inorganic coating waterproofing agent, and a resin mortar on the waterproof sheets 114 integrally attached, the coating waterproofing agent 120 is applied to 0.3-1mm, and then dried. Top coating is applied to the top surface with a thickness of 0.2-0.3 mm.

The putty unsweetened rubber agitated 122 of the porridge is dissolved in 1000 g of unsweetened rubber agitated in the dough state, which is an unsweetened rubber sheet, in a toluene 1000cc gel having a viscosity of 15000-16000pcs ( viscous agitation in gel).

On the other hand, Figure 5 is a view for explaining a modified embodiment according to the second embodiment, referring to Figure 5, after filling the unvulcanized rubber stirring material 122 between the waterproof sheet 114, the sheet In order to more securely seal the joints of the pores, the primer 116 is coated on the connection part, and then a thin uncured rubber band 118 is attached to the primer layer 116. In other words, this modification is a combination of the first embodiment and the second embodiment.

6 to 9 are flowcharts and cross-sectional views illustrating a construction method according to a third embodiment of the present invention.

This construction method is a very useful construction method for the structure (base concrete) which removes and reconstructs an existing waterproof layer. In other words, no matter how cleanly the existing waterproof layer is rolled out, the base concrete surface is very irregular and thus the waterproof sheet cannot be completely attached to the base concrete surface by the method according to the first and second embodiments. When the waterproof sheet and the ground concrete surface are excited, a problem arises in that the waterproof sheet is inflated while the moisture generated from the ground concrete surface is released into the excited space between the waterproof sheet and the concrete surface. The construction method according to the third embodiment solves this problem.

6 to 9, the construction method according to the third embodiment of the present invention, the non-adhesive sheet 124b of thickness 0.3-1mm (polymer sheet, foamed polymer sheet, natural fiber material The uncured rubber sheet 124 formed by attaching the uncured rubber sheet 124a having a thickness of 1mm-3mm on the upper side thereof and the sheet having a thickness of 1 mm-3mm. Connection is performed by the sheet connection method according to the first embodiment or the connection method according to the second embodiment. At this time, the non-adhesive sheet 124b is placed on the bottom surface 10a except for the side surface 10b, which is the edge of the base concrete 10 to be installed, so that the composite uncured rubber sheet 124 is connected to the ground surface 10a. A space through which air (moisture) can pass is provided between the concrete 10 surface and the composite unvulcanized rubber sheet 124. And, one by one at a predetermined interval (2m-3m) by installing a de-base 130 (apparatus made to escape air), to release the moisture or gas emitted from the bottom surface 10a of the ground concrete waterproof sheet Eliminates the disadvantages of swelling.

10 and 11 are views showing the exposed composite waterproof structure according to the fourth embodiment, the construction method according to the fourth embodiment to make the connection portion of the waterproof sheet (or composite waterproof sheet) more secure and secure To this end, it is characterized in that the unvulcanized rubber band is attached to the upper portion as well as the lower portion of the waterproof sheet.

Referring to Figure 10 describes the construction method, first apply a primer 116 on the surface corresponding to the waterproof sheet connection seam on the top of the bottom surface (10a) of the ground concrete (10), thin (width 100mm, thickness 0.5) -1mm) Attach the unvulcanized rubber band 118. After applying the primer on the upper secondary, and then attach the composite waterproof sheet 124 on top of it, and then attach the primer 116 to the upper portion of the connecting portion, and then a thin vulcanized rubber band ( 118). Then, a coating film waterproofing agent 120 (paint, urethane coating film waterproofing agent, acrylic inorganic coating film waterproofing agent, resin mortar, etc.) is applied thereon at a thickness of 0.3-1 mm, and then the coated film waterproofing agent 120 is dried. The coating is finally applied to a thickness of 0.2-0.3mm.

Looking at the construction method while looking at Figure 11, first apply a primer 116 on the surface corresponding to the waterproof sheet connection seam on the top of the bottom surface (10a) of the ground concrete (10), light (100mm wide, thick) 0.5-1mm) attach the unvulcanized rubber band 118. After applying the primer on the upper secondary, the composite waterproof sheet 124 to the spaced apart 5-8mm interval thereon attached, and then putty uncured rubber agitated to the recessed portion of the waterproof sheet (124) After filling 122 and flattening, the primer 116 is applied in the third order, and a thin unvulcanized rubber band 118 is attached to the top. Then, a coating film waterproofing agent 120 (paint, urethane coating film waterproofing agent, acrylic inorganic coating film waterproofing agent, resin mortar, etc.) is applied thereon at a thickness of 0.3-1 mm, and then the coated film waterproofing agent 120 is dried. The coating is finally applied to a thickness of 0.2-0.3mm, or as shown in FIG. 12, the fourth silicate (119) is coated with a fourth primer (117) on the top of which a thin uncured rubber band 118 is attached to the top. After spraying (spraying) and attaching, the liquid urethane coating waterproofing agent (or epoxy coating waterproofing agent) 120 is applied to the upper part to which silica sand 119 is attached, and then the coated urethane coating waterproofing agent is dried and then top coated. Finally apply 0.2-0.3mm thick.

On the other hand, as shown in Figure 9, on the side surface (10b) of the edge of the base concrete 10 to be installed, the base concrete 10 by inverting the composite waterproof sheet in reverse so that water does not flow under the composite uncured rubber sheet 124 Fully attach to the side (10b) of using the primer (128). Finally, by applying the liquid coating film waterproof material 120 on the composite unvulcanized rubber sheet 124 can be obtained a beautiful and flat effect. In the case of the corner portion, it is preferable to attach the composite waterproof sheet after attaching the reinforcing sheet 180 to the base concrete 10 first.

6 is a view illustrating the construction of the composite unvulcanized rubber sheet according to the method of using the unvulcanized rubber band in the first embodiment, and in FIG. 7 the composite unvulcanized rubber sheet in the second embodiment. Shows the drawings constructed according to the connection method using.

On the other hand, the following describes a preferred embodiment for producing a non-vulcanized adhesive waterproof sheet applied to the present invention.

Preparation of Adhesive Uncured Rubber Sheet

The composition of the sticky unvulcanized rubber sheet is as follows. The dough of such a sticky unvulcanized rubber sheet can be prepared according to the inventor's invention patent number 0345345.

Rubber material: natural rubber, synthetic rubber (SBR rubber, IR rubber, BR rubber, EPT rubber, IIR rubber,

CR rubber, NBR rubber, urethane rubber, CPE rubber) or mixed ---- 100%

Vulcanization aids:

 Stearic Acid ----------------------------------------------- 2%

 Magnesium Oxide --------------------------------------------- 5%

 Zinc Oxide -5%

 sulfur------------------------------------------------- ------2%

Tackifier:

 Polybutene ----------------------------------------------- 10 %

 Petroleum Resin 5%

 Kumaron Resin ---------------------------------------------- 7 %

 Rosine --------------------------------------------- 5 %

 Softener:

Process oil ----------------------------- 12%

DOA ------------------------------------------------- --- 10%

 Filling:

Calcium Carbonate ----------------------------------------------- 20 %

Clay ------------------------------------------------- 20%

 Reinforcement:

Back Carbon ---------------------------------------------------------------- --8%

Black carbon ---------------------------------- 6%

 Emperor:

DM ------------------------------------------------- -----2%

D ------------------------------------------------- ------One%

T / T ----------------------------------------------- ------One%

TRA ------------------------------------------------- ----2%

The rubber subject has different inherent physical properties and properties, but the inventors have tested and found that a mixture of EPT rubber and rubber to be added at a 7: 3 ratio was excellent in durability and chemical resistance such as weather resistance.

In the above, the waterproof construction method and operation according to the present invention is shown in accordance with the above description and drawings, but this is merely an example, and various changes and modifications are possible without departing from the spirit of the present invention. .

According to the present invention, flat and uneven bending is possible by jointly connecting the sheet and the sheet integrally, and by applying a liquid coating waterproofing material with color on the uppermost layer, a flat and beautiful waterproof effect can be obtained. There is an advantage.

In another effect, the moisture contained in the ground concrete is released, thereby obtaining a flat and uneven construction effect, and by applying a liquid paint imparting a beautiful color to the upper layer, the beautiful and flat effect is achieved. You can get it.

Claims (16)

In the exposed waterproof construction method of a structure having a bottom surface and a side for waterproofing, Preparing a composite waterproof sheet having a non-tacky sheet and a waterproof sheet; Lay out on the bottom surface of the structure such that the non-adhesive sheet of the composite waterproof sheet is placed on the bottom surface of the structure to provide a space for water or gas to pass between the bottom surface of the structure and the composite waterproof sheet. Connecting the composite waterproof sheets so that the connection portions of the composite waterproof sheets unfolded integrally and flatly connected to the bottom surface of the structure; And And applying a primer only to the side of the structure, and attaching the composite waterproof sheet to the side surface of the structure by bringing the waterproof sheet of the composite waterproof sheet downward. The method of claim 1, The composite waterproof sheet constructed on the bottom surface of the structure and the composite waterproof sheet constructed on the side of the structure after attaching a reinforcing sheet first to the corner portion of the side of the structure and the bottom surface of the structure Exposed waterproof construction method characterized in that attached. delete The method according to claim 1 or 2, The exposed waterproof construction method is The method of claim 1, further comprising the step of installing a de-base in a predetermined area so that the water and gas contained in the structure is released. The method according to claim 1 or 2, The exposed waterproof construction method is An exposed type waterproof construction method further comprises the step of applying a liquid coating waterproofing agent on the composite waterproof sheet. The method according to claim 1 or 2, The exposed waterproof construction method is And applying a liquid urethane coating waterproofing agent and a top coating to the upper part of the silica sand to which the silica sand is sprayed and applied while applying the primer on the upper part of the composite waterproof sheets. The method according to claim 1 or 2, The composite waterproof sheet is connected Forming a primer layer by applying a primer on the connection part of the composite waterproof sheet; Exposure type waterproof construction method comprising the step of attaching an unvulcanized rubber band on the primer layer. The method according to claim 1 or 2, The composite waterproof sheet is connected Connecting the composite waterproof sheets at a predetermined interval; An exposure type waterproof construction method comprising the step of connecting the composite waterproof sheets integrally and flatly by filling the uncured rubber agitation in the putty state (mold porridge) in the recessed portion formed while the composite waterproof sheets are spaced apart. . The method of claim 8, Filling the unvulcanized rubber agitator between the composite waterproof sheet, and then applying a primer on top of the connection portion of the composite waterproof sheet to form a primer layer, and attaching an unvulcanized rubber band on the primer layer Exposed waterproof construction method further comprising. delete The method according to claim 1 or 2, The non-adhesive sheet is exposed type waterproof construction method using any one of a sheet of a polymer material, a sheet of a polymer material, a sheet of a natural fiber material, a sheet of a synthetic fiber material. The method of claim 7, wherein The connecting step of the composite waterproof sheet is And applying a primer on a surface corresponding to the connection joint of the composite waterproof sheets on the structure, and attaching an unvulcanized rubber band thereon. delete delete delete delete

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