JP6022512B2 - Draining material using a waterproof sheet - Google Patents

Description

  The present invention relates to a draining material using a waterproof sheet.

1. When waterproofing the floor (rooftop), etc. on the top floor of a building, methods such as asphalt waterproofing, sheet waterproofing, and waterproofing of urethane coatings have been taken and have the following advantages and disadvantages.

(1) Asphalt waterproofing This method is a method of forming a waterproof layer while alternately layering two or three asphalt roofings (a material in which asphalt is infiltrated into a sheet-like base material) with heat melting. It is a construction method with a track record. Since the waterproof material is asphalt, it has high water-tightness, and there is an advantage that various specifications can be accommodated by adjusting the type of asphalt roofing and the number of stacked sheets. In addition, the accuracy varies depending on the skill level of the operator, but the accuracy can be averaged by overlapping.
On the other hand, since this method uses asphalt, the waterproof layer is sensitive to changes in temperature, and it is easy to sag in the summer, to harden and break in the winter, and there are also disadvantages that the periphery and the like do not fit well. In addition, since high-temperature asphalt is used during construction, it is necessary to work while ensuring the safety of workers, and there is also a problem that smoke and odor adversely affect the neighborhood.

(2) Waterproofing of rubber sheet This method is a method of forming a waterproof layer by bonding together waterproof sheets made of rubber materials having a thickness of about 1 to 2 mm with an adhesive. This construction method has the advantage that the quality is stable because the waterproof sheet is molded at the factory, and when using a rubber sheet, it has excellent extensibility and follows even if the ground is cracked. I was able to.
On the other hand, in this method, there is a disadvantage that it is easy to peel off if there is construction failure in the jointed part of the waterproof sheet, and in the case of using a rubber sheet, in addition, there are convex parts on the ground or due to sharp flying objects There were also disadvantages that were easily damaged.

(3) Urethane coating waterproofing This construction method is a construction method in which a two-component liquid material is mixed and stirred at the time of construction, applied to the base by spraying, etc., and solidified by reaction to form a waterproof layer. is there.
Since liquid material is applied, it has the advantage of being easy to fit and easy to install even in complicated places such as narrow spaces and rooftops with many equipment foundations. There was an advantage that can be prevented. Moreover, since the waterproof performance can be improved by applying it repeatedly, there is an advantage that the waterproof layer can be repaired at low cost because it is only necessary to apply it at the time of repair. Furthermore, it is possible to meet specifications for various applications such as increasing friction resistance and impact resistance by selecting a liquid material, and for example, it can be used on a sports ground.
On the other hand, since a liquid material is applied, it is easy to spread horizontally, and if the ground surface is uneven, it cannot be applied to a uniform thickness, and it is difficult to ensure the film thickness. In addition, since the two liquids are agitated and mixed on site, there is also a disadvantage that quality is varied such as uncured if the agitation and mixing are insufficient.

(4) Vinyl chloride sheet floor This method is a method of attaching a vinyl chloride waterproof sheet with urethane and epoxy resin adhesives for the purpose of simple waterproofing, design and slip prevention of open corridors, stairs and verandas of apartment buildings. It is.
At that time, a waterproof sheet such as vinyl chloride is applied from the top of the groove and the rising portion where the waterproof sheet is not applied, up to a range of 10 cm of urethane waterproof material. The waterproof sheet can be applied immediately after applying the adhesive, and on the attached sheet, it is possible to walk without waiting for the adhesive to harden, so there is a period of time when it is closed even in shared areas such as open corridors and stairs. Short and there are few obstacles to the lives of residents.
However, as with the asphalt waterproofing material, due to deterioration over time, the plasticizer in the sheet becomes hard due to volatilization and shrinkage occurs. As a result, the end portion floats and the joint portion seal is broken. In addition, the surface layer also fades and the design properties are reduced. For this reason, it was necessary to remove the existing waterproof sheet flooring together with the adhesive and reconstruct it.

  Even if any one of the above methods (1) to (4) is adopted, it is necessary to provide anti-scattering curing around the site, and at least a curing curing period of one day is required at each stage. In some cases, it took weeks, and the construction period was prolonged.

2. A water retention pad used for rooftop greening has also been proposed in which foamed urethane is used and the joints are closed with tape (Patent Document 1).
Furthermore, a urethane mat is proposed in which a small-sized urethane sheet B is pasted on the center side of the butyl rubber sheet A, and a woven or non-woven tape is pasted around it. A construction method for waterproofing has been proposed (Patent Document 2).

3. Also, in the drain piping part that continues to the waterproof sheet, for example, a flexible hose made of a bellows-like resin with a flange-like sheet at the upper end is used, and a flexible hose is put in the drain pipe, and the flange-like sheet is attached to the waterproof sheet. (Patent document 3).
Moreover, in order to fix to the concrete floor so that the edge part of a waterproof sheet may not be turned up, the anchor was hit to the concrete frame from the upper surface of the waterproof sheet. That is, the anchor penetrated the waterproof sheet and was driven into the concrete frame. In this case, the anchor was made of steel.
In these cases, an appropriate treatment method that takes into account secular change has not been established for the treatment of the end portions of the waterproof sheet and the waterproof film.

JP 2002-84889 A Japanese Patent Laid-Open No. 9-131834 JP 2003-113663 A

Patent Document 1 does not consider waterproofness, and does not consider friction or partial pressurization such as walking of a person. Therefore, applying the waterproof pad of Patent Document 1 directly to a floor surface such as a roof is not possible. could not.
Moreover, in patent document 2, although the butyl rubber sheet A is previously used as an adhesive with a floor surface at the time of construction, since the urethane mat B is smaller than the butyl rubber sheet A, the urethane mat adjacent to each urethane mat. It is necessary to perform waterproofing on the periphery of B later, and the waterproof performance of the entire surface cannot be exhibited only by placing the urethane mat.

In addition, in the treatment around the drain pipe of Patent Document 2, a flexible pipe is essential, and the minimum inner diameter of the flexible pipe is remarkably smaller than the inner diameter of the drain pipe, and there is a possibility that the rainwater drainage capacity may be significantly reduced. Therefore, when considering the situation where local heavy rains such as guerrilla heavy rain in recent years occur frequently, a treatment method that does not reduce the drainage capacity has been demanded.
Moreover, when using an anchor for the edge part process of a waterproof sheet, since the anchor which is a metal is press-fit in concrete, there also existed a possibility that a crack might arise in concrete. In addition, since the metal anchor penetrates the normal waterproof sheet made of resin, there is no followability, and there is a possibility that deformation occurs at the part where the waterproof sheet penetrates. Therefore, in any case, a long-term waterproof layer such as 20 years and 30 years could not be guaranteed. In particular, it was prominent on the vertical and inclined surfaces.

  The present invention uses a formwork to manufacture a waterproof sheet of one or more layers including a urethane-based waterproof material layer in a desired function in advance at a factory, and pastes it in the field. Solved the problem.

That is, the present invention is a drainer characterized by forming a waterproof layer as follows.
Outside the waterproof construction site, a waterproof sheet is formed in advance as described below, and a functional member protruding on the front surface side or the back surface side of the waterproof sheet is formed.
(1) A “waterproof base layer” made of a urethane resin waterproof resin material is formed on the floor surface side.
(2) A top coat layer for protecting the waterproof base layer is formed on the waterproof base layer.
(3) The peripheral edge of the waterproof base layer and the peripheral edge of the topcoat layer were matched.

Moreover, another invention is a drainer characterized by forming a waterproof layer as follows.
Outside the waterproof construction site, a waterproof sheet is formed in advance as described below and is formed with a functional member that projects to the front surface side or the back surface side of the waterproof sheet.
(1) A first waterproof layer made of a general waterproof resin material for general waterproof resin is formed on the floor surface side.
(2) On the first waterproof layer, a second waterproof layer made of a urethane resin-based high-quality waterproof resin material having higher waterproof performance than the first waterproof layer is formed.
(3) The peripheral edge portion of the first waterproof layer and the peripheral edge portion of the second waterproof layer are substantially matched.

The floor surface waterproofing method is characterized in that it is configured as follows.
The functional member is a part that is provided at the end of the sheet and serves as a drainer.

  Further, an insertion protrusion for entering the anchor groove is formed on the base, and a draining cover is formed on the distal end side of the base.

  The “floor surface” in the present invention usually represents a roof surface, and in addition to a substantially horizontal floor surface, if there is a surrounding start-up part or a concrete foundation for equipment, the start-up part of the concrete base is Including.

  Further, the “floor surface” in the present invention is not limited to the roof surface, and also refers to a horizontal surface of a veranda, a horizontal surface of a walkway, or an indoor floor surface as long as the same waterproof surface is required. Further, as long as the same waterproof function is required, the present invention can be applied not only to a horizontal plane but also to an inclined plane, a vertical plane, or a stepped plane.

  Further, the “top coat layer” in the present invention is a protective layer for prolonging the waterproof performance of the waterproof layer, and has various functions such as ultraviolet ray prevention and shock absorption. In particular, when a urethane-based waterproof resin material is used, the role of the top coat layer is necessary because it is important to maintain the waterproof performance by preventing deterioration due to ultraviolet rays.

  The “adhesive layer” in the present invention is preferably a urethane-based material. The primer in the above is also preferably urethane.

  In addition, the “high quality urethane waterproof layer” in the present invention includes a urea resin-based material having waterproof performance.

  In addition, the “general waterproof resin material” in the present invention is a resin material having a conventional waterproof performance, and it is sufficient if the used part has a required waterproof performance.

Further, the “functional member” in the above is necessary because it is a member formed integrally with the waterproof layer around the waterproof layer conventionally formed in the field, or a waterproof sheet previously formed into a sheet shape. For example, the following members are used.
・ A part that is provided at the end of the sheet to fix the sheet to the concrete surface ・ A part that is provided at the end of the sheet to fix the sheet to the concrete surface and also serves as a drainer ・ Drain at the end or intermediate part of the sheet Connected to the pipe and provided at the end or middle of the funnel-like member / sheet inserted along the inside of the drain pipe to close the space between the sheet-attached surface and the opposite surface of the surface Members such as packing

  In addition, when the waterproof sheet is composed of the first waterproof layer and the second waterproof layer, the “functional member” in the above is preferably formed of two layers of both waterproof layers, It can also be formed with only one waterproof layer.

  In the present invention, a resin waterproof sheet is manufactured in advance in a factory or the like using a concavo-convex molding frame, and the resin waterproof sheet is laminated on the site, so that preparation for ensuring stable quality can be performed. This has the effect of significantly reducing on-site work, such as curing for preventing splashing and curing periods waiting for hardening.

  In addition, since the resin waterproof sheet can be formed with a certain thickness, according to the required waterproof performance, the optimal amount of waterproof material can be used without waste, various uneven patterns are formed on the bottom of the uneven molding frame, A waterproof sheet having various functions can also be configured.

  In addition, when forming a topcoat layer on the resin waterproof sheet, it is possible to form an arbitrary finished color pattern, an arbitrary surface pattern or some uneven pattern on the surface of the resin waterproof sheet in advance with an uneven molding frame, There is an effect that an arbitrary function and decoration can be given. Furthermore, since the high-quality urethane waterproof layer hardly changes over time, it can be applied without being removed at the time of refurbishment, and this can also prevent the generation of waste materials.

FIG. 1 is a plan view of a roof. FIGS. 2A to 2D are AA enlarged cross-sectional views of FIG. 1 for explaining a construction method applied to a roof in the embodiment of the present invention. 3 (a) to 3 (c) are longitudinal sectional views of a standard waterproof sheet used for carrying out the present invention. 4 (a) to 4 (e) are longitudinal sectional views showing the manufacturing process of the waterproof sheet used in the practice of the present invention. FIG. 5 is a plan view of the veranda. FIGS. 6A to 6D are BB enlarged sectional views of FIG. 5 for explaining a construction method applied to a veranda in the embodiment of the present invention. FIGS. 7A to 7C are longitudinal sectional views for explaining end processing of a waterproof sheet or the like at the parapet top end in Example 3. FIG. FIG. 8 is Example 3, (a) is sectional drawing of a resin fixing tool, (b) (c) is a longitudinal cross-sectional view explaining edge part processing of a waterproof sheet etc. in a vertical surface. 9A to 9C are diagrams illustrating another example of the end treatment of the waterproof sheet in another example of Example 3, and FIG. 9D is a waterproof sheet in which a functional member is integrally formed.

1. The waterproof sheet 10 of the present invention has a configuration in which a plurality of layers are formed over the entire surface (FIG. 3).

(1) Topcoat layer 30 in order from front surface 11 to back surface 12 with two urethane waterproof layers
High quality urethane waterproof layer 31
Urethane waterproof layer 32 for general use
It is desirable to use the waterproof sheet 10A having a configuration including three layers (FIG. 3A). Here, the four edges of the waterproof sheet 10A are formed so that the edge 30a of the topcoat layer 30, the edge 31a of the high-quality urethane waterproof layer 31, and the edge 32a of the general urethane waterproof layer 32 are substantially aligned. Is done. In this case, the general urethane waterproof layer 32 is omitted,
Top coat layer 30
High quality urethane waterproof layer 31
The waterproof sheet 10A may be configured as a structure including the two layers (FIG. 3B).

(2) Depending on the waterproof performance required, the top coat layer 30 may be omitted,
High quality urethane waterproof layer 31
Urethane waterproof layer 32 for general use
It can also be set as the waterproof sheet 10B made into the structure containing these two layers (FIG.3 (c)).
Here, the four edges of the waterproof sheet 10B are formed so that the end edge 31a of the high-quality urethane waterproof layer 31 and the end edge 32a of the general urethane waterproof layer 32 are substantially aligned. In this case, the topcoat layer 47 is formed on site or the topcoat layer 47 is omitted.

(3) The top coat layer 30 in the above is formed to prevent the urethane waterproof layer from being exposed to ultraviolet rays or to add various colors and patterns (planar patterns, uneven patterns). The high-quality urethane waterproof layer 31 is a layer having a high waterproof performance that does not contain an increasing component other than the urethane waterproof resin. Further, the general urethane waterproof layer 32 is a layer for securing the thickness of the waterproof layer, although various increasing components are added to the urethane waterproof resin and the prevention performance is inferior.

(4) The waterproof sheet 10 (10A, 10B) is manufactured by coating each layer in order in the concave mold 20 having the molding recess 23 (FIG. 4). In addition, the waterproof sheet 10 is manufactured in advance in a place different from the floor of the actual construction site, such as a vacant land in the site of a factory or construction site, or a vacant room on the lower floor of the site.

2. The waterproofing method of the present invention is performed as follows.

(1) When constructing on the rooftop floor surface 1 (FIG. 1) using the waterproof sheet 10A, the primer layer 41 and the adhesive layer 43 are formed by a normal method on the surface requiring waterproofing treatment ( FIG. 2 (a)). Subsequently, the waterproof sheets 10A and 10A are laid on the center side of the rooftop floor surface 1 (excluding the raised portions such as the drainage grooves and the parapet 3) with no gap between the adjacent waterproof sheets 10A and 10A (FIG. 2). (B), FIG. 1).
Subsequently, urethane waterproofing agent is applied to the raised portions of drainage grooves and parapets 3 where the waterproof sheets 10A and 10A are not laid by a conventional method to form an in-situ waterproofing layer 45 (FIG. 2C). Subsequently, a top coat layer 47 is formed (FIG. 2D).
This completes the waterproofing work.
Here, a waterproof sheet 10B on which the top coat layer 30 is not formed can also be used (not shown). In particular, it is effective because the cost can be reduced at a site where there is little ultraviolet irradiation such as no direct sunlight.

(2) When the waterproof sheet 10B is used to construct the veranda floor surface 4 (FIG. 5), the primer layer 41 and the adhesive layer 43 are formed by a normal method on the surface requiring waterproofing treatment ( FIG. 6 (a)). Subsequently, the waterproof sheets 10B and 10B are laid between the adjacent waterproof sheets on the central side of the veranda floor surface 4 (excluding the raised portion of the drainage groove 6 and the parapet 3 and the indoor raised portion 7) with no gap between them. (FIG. 6B, FIG. 5).
Subsequently, a waterproofing layer 45 is formed by applying a urethane waterproofing agent to the raised portion of the drainage groove and parapet 3 where the waterproof sheets 10B and 10B are not laid, and the indoor raised portion 7 by a conventional method. (FIG. 6C). Subsequently, in the waterproof sheet 10B, 10B, the drainage groove, the raised portion of the parapet 3, etc., the indoor side raised portion 7, etc. in the range where the waterproof layer is formed (the surface on which the waterproof sheet 10B and the urethane waterproofing agent appear), A top coat layer 47 is formed (FIG. 6D).
This completes the waterproofing work. Note that the top coat layer 47 can be omitted (not shown) when the influence of ultraviolet rays is small and the waterproof performance is not so required.
When high waterproof performance is required, the waterproof sheet 10A having the top coat layer 30 formed as described above can also be used (not shown).

(3) In the waterproof sheet 10 (10A, 10B), if a parapet rising portion (functional member) is previously projected above the waterproof sheet 10 (10A, 10B) and is integrally formed (not shown) (In factories, etc.), the work at the site can be omitted and the waterproof performance at the border can be improved. Similarly, when there is a drain pipe on a plane that requires waterproofing, the funnel-shaped part (functional member) protruding downward is formed in a waterproof sheet 10 ( 10A and 10B) (not shown).

  Fixing the waterproof sheet 10 to the starting part of the parapet 3 (FIG. 7)

(1) The anchor groove 51 is formed in the top end (top surface) 3a of the parapet 3, and the primer layer 41 and the adhesive layer 43 are applied to the top end 3a, the corner 3b, the upper end 3c of the vertical surface, and the like. The primer layer 41 and the adhesive layer 43 are also applied in the anchor groove 51 (FIG. 7A). The anchor groove 51 is formed in a slit shape (joint shape) or a planar circle.
The waterproof sheet 10A to be used includes a top coat layer 30, a high-quality urethane layer 31, and a general urethane layer 32 (FIG. 7A).

(2) A resin fixture (made of epoxy resin) 60 includes a base 61 that presses the top end 3a of the parapet 3, an insertion protrusion 62 that enters the anchor groove 51, a sheet presser 63 on one side of the base 61, and a parapet on the other side. The holding part 64 is formed and configured (FIG. 8B). The resin fixture 60 has a shape corresponding to the anchor groove 51 such as long in the depth direction in FIG. 8B (corresponding to the slit-shaped anchor groove 51) and short in the depth direction (corresponding to the circular anchor groove 51). And
A waterproof sheet 10A is attached to the parapet 3, and an epoxy adhesive 43 is applied to the end portion 10a of the waterproof sheet 10A (FIG. 8B).

(3) The insertion protrusion 62 of the resin fixture 60 is inserted into the anchor groove 51, and the end portion 10a of the waterproof sheet 10A is strongly pressed to the parapet 3 side by the sheet pressing portion 63. At this time, the parapet pressing portion 64 of the resin fixture 60 is put on the upper end portion of the vertical portion 6c from the corner portion 3b of the parapet (FIG. 9C). The gap between the insertion protrusion 62 and the anchor groove 51 is filled with epoxy resin.

(4) Although the waterproof sheet 10A is used here, it can be applied to the waterproof sheet 10B in which the top coat layer 30 is not formed. Moreover, it can also be applied to a conventional arbitrary waterproof sheet or a waterproof sheet formed in a sheet shape by spraying ultrafast curing urethane spray (polyurea type or the like) in the field (not shown).

(5) Further, here, the waterproof sheet 10 (10A, 10B) has a substantially horizontal part (in the vicinity of the anchor groove 51) and a substantially vertical part of the rising part covering the top plate 3a of the parapet 3. Usually, it is molded in advance, but it can be bent along the surface of the parapet 3 on site if a certain degree of flexibility can be imparted.
In this case, resin fixture (functional member) 60 in advance tarpaulin 10 (10A, 10B) can be used to carry on site and integrally molded (Fig. 9 (d) see). In this case, for example, the edge 10a of the waterproof sheet 10 continues to the base 61 of the resin fixture 60, and the sheet pressing portion 63 and the edge 10a of the waterproof sheet 10 coincide (not shown).

3. Fixing the waterproof sheet 10 to the vertical surface 8 (FIGS. 8 and 9 )

(1) A resin fixture (made of epoxy resin, draining plate) 60 used in this embodiment has an insertion projection 62 entering the anchor groove 51 and a sheet pressing portion 63 perpendicular to the insertion projection 62 on the base 61. Configure (FIG. 8A). The length of the resin fixture 60 in the depth direction in FIG. 8A corresponds to the shape of the anchor groove 51.
Further, a draining cover portion 66 is formed in parallel with the sheet pressing portion 63 on the outer side of the sheet pressing portion 63 (the front end side of the base portion 61) (FIG. 8). The tip end 66 a of the draining cover portion 66 (the direction away from the base portion 61) is formed shorter than the tip end 63 a of the sheet pressing portion 63.

(2) A vertical anchor groove 51 is formed in the vertical surface 3c of the parapet 3 and the vertical surface 8 of the other casing (FIG. 8B). If necessary, a primer layer 41 and an adhesive layer 43 are applied in the vertical surface 8 and the anchor groove 51 (not shown). The anchor groove 51 is formed in a continuous or intermittent slit shape (joint shape) or a parallel planar circle.
A waterproof sheet 10A is attached to the vertical surface 8 from below, and the upper end portion 10a is positioned near the anchor groove 51 (FIG. 8B).

(3) The insertion protrusion 62 of the resin fixture 60 is inserted into the anchor groove 51, and the end portion 10a of the waterproof sheet 10A is strongly pressed to the vertical surface 8 side by the sheet pressing portion 63 (FIG. 8C). In this state, the anchor groove 51 is filled with the epoxy resin 67 to fill the gap between the insertion protrusion 62 and the sheet pressing portion 63 of the resin fixture 60 and the anchor groove 51. In this state, the epoxy resin also turns into the communication hole 65 of the insertion protrusion 62 of the resin fixture 60, and is firmly fixed when the epoxy resin is cured.

(4) Although the waterproof sheet 10A is used here, it can be applied to the waterproof sheet 10B in which the top coat layer 30 is not formed. Moreover, it can also be applied to a conventional arbitrary waterproof sheet or a waterproof sheet formed in a sheet shape by spraying ultrafast curing urethane spray (polyurea type or the like) in the field (not shown).
The resin fasteners (functional member) 60 in advance tarpaulin 10 (10A, 10B) and can be used to carry the situ formed integrally (FIG. 9 (d) see). In this case, for example, the edge 10a of the waterproof sheet 10 continues to the base 61 of the resin fixture 60, and the sheet pressing portion 63 and the edge 10a of the waterproof sheet 10 coincide (not shown).

(5) Further, in FIG. 8, the vertical surface 8 is assumed to be a wall on the outer wall side, but as described above, it can be similarly applied to the waterproof rising portion (FIG. 9). Further, the resin fixture 60 is formed with an inclined portion 66b on the base end side (base portion 61 side) of the draining cover portion 66, and the tip end 66a is formed longer than the tip end 63a of the sheet pressing portion 63 (FIG. 9C). )).
In this case, a vertical surface 8 (vertical surface 3c) is formed following the veranda floor surface 4, and an anchor groove 51 is formed in the vertical surface 8 (FIG. 9A). Similarly to the above, after forming the primer layer 41 and the adhesive layer 43 on the veranda floor surface 4 and the vertical surface 8, the waterproof sheet 10A (or 10B) is pasted (FIG. 9B). In this case, the waterproof sheet 10A is formed up to just below the anchor groove 51 (FIG. 9B).
Similarly to the case of FIG. 8, if necessary, after forming the primer layer 41 and the adhesive layer 43 in the anchor groove 51, the insertion protrusion 62 of the resin fixture 60 is inserted into the anchor groove 51, and the sheet pressing portion 63. Then, the end portion 10a of the waterproof sheet 10A is strongly pressed to the vertical surface 8 side (FIG. 9C). In this state, the anchor groove 51 is filled with the epoxy resin 67 to fill the gap between the insertion protrusion 62 and the sheet pressing portion 63 of the resin fixture 60 and the anchor groove 51. In this state, the epoxy resin also turns into the communication hole 65 of the insertion protrusion 62 of the resin fixture 60, and is firmly fixed when the epoxy resin is cured. In this case, since the draining cover part 66 is disposed so as to cover the outside of the sheet pressing part 63, the anchor groove 51, the resin fixture 60, and the end part 10a of the waterproof sheet 10A can be protected (FIG. 9C). .
The resin fixture 60 can be similarly applied to a waterproof sheet other than the waterproof sheets 10A and 10B, and a waterproof sheet by field work formed in a sheet shape by spraying at the site (not shown).
Moreover, the waterproof sheet 10 (10A, 10B) which integrally shape | molded the resin fixing tool (functional member) 60 can also be used (FIG.9 (d)). In this case, the end edge 10a of the waterproof sheet 10 continues to the base 61 of the resin fixture 60, and the sheet pressing portion 63 and the end edge 10a of the waterproof sheet 10 coincide. Moreover, the waterproof sheet 10 (10A, 10B) can also be carried into the site and used as a structure in which a substantially horizontal portion and a substantially vertical portion are integrally formed in advance (FIG. 9D).

DESCRIPTION OF SYMBOLS 1 Rooftop surface 2 Penthouse 3 Parapet 4 Veranda floor surface 5 Allocation line 8 Vertical surface 9 Horizontal surface 10 Waterproof sheet 10A Waterproof sheet (with top coat layer)
10B waterproof sheet (no topcoat layer)
DESCRIPTION OF SYMBOLS 11 Surface of waterproof sheet 12 Bottom surface of waterproof sheet 13 Communication hole of waterproof sheet 17 Drain part (functional member) of waterproof sheet
18 Start-up part of waterproof sheet (functional member)
19 Insertion part of waterproof sheet (functional member)
DESCRIPTION OF SYMBOLS 20 Recessed formwork 21 Recessed formwork base 22 Base upper surface 23 Recessed formwork recessed part 24 Recessed bottom 25 Crosspiece 25a Inner side face 30 Crosspiece topcoat layer 30a Topcoat layer edge 31 Waterproof sheet High-quality urethane waterproof layer (first waterproof layer)
31a Edge of high quality urethane waterproof layer 32 Urethane waterproof layer for general use of waterproof sheet (second waterproof layer)
32a Edge of general urethane waterproof layer 41 Primer layer 43 Adhesive layer 45 In-situ waterproof layer 47 Top coat layer 51 Anchor groove 53 Fixed opening (waterproof sheet)
55 Solidified resin anchor 57 Base material 60 Resin fixture 61 Resin fixture base 62 Resin fixture insertion protrusion

Claims (1)

A functional member and a drainer for fixing the waterproof sheet to the concrete surface at the end of the waterproof sheet in which the top coat layer for protecting the waterproof base layer is formed on the waterproof base layer made of urethane resin waterproof resin material A draining material using a waterproof sheet, characterized in that an insertion protrusion for entering an anchor groove is formed at a base portion as a functional member that is molded as a functional member that serves as a base and is fixed to a concrete surface .

Images