JP2006200308A - Waterproof construction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof construction having excellent waterproofness which can be applied to the construction of waterproof floor, wall or ceiling without using waterproof pans. <P>SOLUTION: A supporting structure 1 is installed on a concrete floor F through a supporting bolt 2. A plurality of floor panels 3 are laid on the supporting structure 1 with the end faces butted together. A pressure sensitive adhesive double coated tape 4 is adhered to the top of the floor panel 3 along a predetermined seam line between waterproof sheets 6; a reinforcing net 5 is overlapped on the pressure sensitive adhesive double coated tape 4; waterproof sheets 6 are laid on the floor panel 3; edge portions of the above are laid on the pressure sensitive adhesive double coated tape 4 having a reinforcing net 5; and the waterproof sheets 6 are pressed down. Backing board 7 for tile work comprising the waterproof sheets 6 such as cement boards are laid on the waterproof sheets 6; and tiles 8 are adhered to the top of the backing board 7 with an adhesive and then joints 9 are filled. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waterproof structure, and more particularly to a waterproof structure in which a waterproof sheet is stretched on the surface of a panel installed on a floor, wall, or ceiling.

  Floors, walls, and ceilings of unit bathrooms and the like need to be waterproof, and are conventionally constituted by waterproof pans (for example, Japanese Patent Laid-Open No. 10-46641).

  This waterproof pan has standard dimensions. In order to construct a preventive floor other than the standard dimensions, a waterproof sheet is constructed by laying a waterproof sheet on a floor board and applying a finishing treatment thereon.

In FIGS. 8 and 9 of JP-A-7-71097, a plurality of waterproof sheets are laid on a concrete floor with double-sided adhesive tape with a slight gap between the edges of the waterproof sheet. In addition, a waterproof floor filled with a sealing material between waterproof sheets is described.
Japanese Patent Laid-Open No. 10-46641 Japanese Patent Laid-Open No. 7-71097

  In the waterproof floor of the said Unexamined-Japanese-Patent No. 7-71097, the waterproofness between the edges of a waterproof sheet is insufficient. That is, in the publication, the sealing material is filled between the edges of the waterproof sheet, but it is easy to transmit between the sealing material and the end face of the waterproof sheet. In particular, when the floor is thermally expanded, peeling between the sealing material and the sheet end surface occurs, and the waterproof property may be extremely lowered.

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a waterproof structure excellent in waterproof property that can construct a waterproof floor, wall, or ceiling without using a waterproof pan.

  The waterproof structure of the present invention (Claim 1) is a waterproof structure having a panel installed on a floor, a wall, or a ceiling, and a waterproof sheet stretched on the surface of the panel. Are attached to the panel with a double-sided adhesive tape having a width across the abutting portion. It is characterized by that.

  A waterproof structure according to a second aspect is the waterproof structure according to the first aspect, wherein the plurality of panels are installed in contact with the end faces of the panels, and the end faces of the panels are provided with real parts engaged with each other. It is characterized by this.

  The waterproof structure according to claim 3, wherein an end of the panel faces a surface crossing the panel, and a double-sided adhesive tape is attached to a crossing corner portion of the panel and the surface, and the waterproof sheet extends from the panel to the surface. Is stretched.

  The waterproof structure of claim 4 is characterized in that, in any one of claims 1 to 3, a reinforcing net is interposed between the double-sided pressure-sensitive adhesive tape and the waterproof sheet.

  In the waterproof structure of claim 1, the back surface of the edge along the abutting portion between the waterproof sheets is adhered to the panel by the double-sided adhesive tape, and the double-sided adhesive tape is disposed across the abutting portion. For this reason, the area of the adhesion interface of a waterproof sheet and a double-sided adhesive tape is large, and the waterproofness of the butt | matching part of a waterproof sheet is very high.

  In the waterproof structure of Claim 2, the shear strength of the butt | matching part of panels improves.

  In the waterproof structure of Claim 3, the waterproofness of the joint of a panel and another surface improves.

  In the waterproof structure of claim 4, since the reinforcing net is interposed between the double-sided pressure-sensitive adhesive tape and the waterproof sheet, even if an external force is applied in a direction to separate the waterproof sheets from the double-sided pressure-sensitive adhesive tape, It is countered, and the double-sided adhesive tape is prevented from being broken and cracked, and the waterproof reliability is improved.

  Hereinafter, embodiments will be described with reference to the drawings. 1A is a longitudinal sectional view showing a waterproof floor as a waterproof structure according to the embodiment, FIG. 1B is an enlarged view of a portion B in FIG. 1A, and FIG. 2 is a waterproof floor in FIG. It is a longitudinal cross-sectional view which shows the state which gave tile tension.

  In this embodiment, a construction example of a waterproof floor is shown as an example of a waterproof structure.

  A gantry 1 is installed via a foot bolt 2 on a concrete floor F in a construction planned space such as a unit bathroom.

  This gantry 1 has a frame shape in which a horizontal beam and a vertical beam are assembled orthogonally.

  A floor plate 3 as a plurality of panels is disposed on the gantry 1 with its end faces in contact with each other. The floor board 3 is fixed to the gantry 1 with a text screw. One end face of the floor board 3 is provided with a mating real part 3a projecting from the lower edge side, and the other end face is provided with a mating real part 3b projecting from the upper edge side. These combined real parts 3a and 3b are engaged and bonded by an adhesive (not shown).

  Prior to laying the waterproof sheet 6 on the floor board 3, a primer is applied to the floor board 3. A double-sided adhesive tape 4 is affixed on the floor board 3 along a planned joint location between the waterproof sheets 6, and a reinforcing net 5 is placed on the double-sided adhesive tape 4. The waterproof sheet 6 is laid on the floor board 3, and the edge portions thereof are stacked on the double-sided pressure-sensitive adhesive tape 4 with the reinforcing net 5 and pressed from above. Caulk 12 is applied to the joint of the waterproof sheets 6 and 6 and sealed. As a result, the net 5 is pushed into the interface between the double-sided adhesive tape 4 and the waterproof sheet 6, and the waterproof sheet 6 adheres to the double-sided adhesive tape 4 through the mesh opening of the net 5. As shown in FIG. 1B, the edges of the waterproof sheets 6 and 6 are abutted. The waterproof sheet 6 is pressure-bonded using a roller or the like so that no bubbles remain.

  As shown in FIG. 4, the double-sided adhesive tape 4 and the reinforcing net 5 are also provided across the wall 13 from the floor plate 3 and the waterproof sheet 6 extends to the wall 13 at the corner portion. To do.

  Thereafter, as shown in FIG. 2, a tiled base plate 7 made of a cement board or the like is laid on the waterproof sheet 6, and tiles 8 are pasted on the base plate 7 with an adhesive, and the joints 9 are filled. Thereby, a tiled waterproof floor is constructed.

  In this waterproof floor, since the edge portions of the adjacent waterproof sheets 6 and 6 overlap and adhere to the double-sided adhesive tape 4, the waterproof sheet 6 can be obtained by increasing the width of the double-sided adhesive tape 4 to some extent. , 6 can be made sufficiently high in waterproofness.

  Moreover, in this embodiment, since the reinforcing net 5 is arranged so as to bite into the upper surface of the double-sided pressure-sensitive adhesive tape 4, both the tensile strength and tensile elastic modulus of the double-sided pressure-sensitive adhesive tape 4 become high. As a result, even if an external force is applied to the double-sided pressure-sensitive adhesive tape 4 in a direction that separates the waterproof sheets 6 and 6, the external force is countered by the reinforcing net 5 and the double-sided pressure-sensitive adhesive tape 4 is broken or cracked. There is no problem, and the waterproof reliability and durability are extremely good.

  Next, although the suitable material of each said member is demonstrated, this invention is not limited to this.

  As the floor board 3, a foamed synthetic resin board, a cement-based board, a plywood or the like is suitable.

  As the double-sided adhesive tape 4, a non-woven fabric such as glass fiber or organic fiber impregnated with adhesive rubber such as butyl rubber, adhesive asphalt or the like is suitable. The thickness of the double-sided pressure-sensitive adhesive tape 4 is preferably about 0.5 to 2 mm, and the width is preferably about 10 to 1000 mm, particularly about 100 to 350 mm.

  As the reinforcing net 5, a net of glass fiber, high elastic modulus organic fiber or the like is suitable. The opening of the net 5 is preferably about 2 to 10 mm. If the mesh opening is smaller than 2 mm, the adhesive force between the double-sided adhesive tape 4 and the waterproof sheet 6 may be reduced, and if it exceeds 10 mm, the reinforcing effect of the double-sided adhesive tape 4 by the net 5 may be weakened. .

  As the waterproof sheet 6, a synthetic resin sheet such as an EVA sheet having a thickness of about 1 to 3 mm, or a rubber sheet is suitable.

  In this embodiment, since the floor boards 3 are actually connected to each other, the bonding strength between the floor boards 3 is high. In FIGS. 1 and 2, the floor plates 3 and 3 are connected to each other by the mating real part, but by the mating actual rowing, the male real part 3A and the female real part 3B (printing) shown in FIG. May be combined.

  In addition, although said embodiment shows the construction example of the waterproof floor, this invention is applicable also when constructing | assembling a waterproof floor and a waterproof ceiling. For example, it is possible to construct a waterproof ceiling with high waterproofness and high bonding tension between the ceiling boards by inverting this embodiment and replacing the floor board 3 with a ceiling board.

Fig.1 (a) is a longitudinal cross-sectional view which shows the waterproof floor which concerns on embodiment, FIG.1 (b) is an enlarged view of B part of Fig.1 (a). It is a longitudinal cross-sectional view which shows the state which gave the tile flooring to the waterproof floor of FIG. It is sectional drawing which shows another example of a coupling | bonding of a floor board. It is sectional drawing of the corner part vicinity of a floor board and a wall.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stand 3 Floor board 4 Double-sided adhesive tape 5 Reinforcement net 6 Tarpaulin 7 Tiling foundation board 8 Tile

Claims (4)

In a waterproof structure having a panel installed on the floor, wall or ceiling and a waterproof sheet stretched on the surface of the panel,
A plurality of the waterproof sheets are stretched on the panel surface by abutting the edges of the sheet,
A waterproof structure characterized in that the back surface of the edge portion along the abutting portion between the waterproof sheets is attached to the panel by a double-sided adhesive tape having a width across the abutting portion.   2. The waterproof structure according to claim 1, wherein a plurality of panels are installed so that end faces of each panel are brought into contact with each other, and real parts engaged with each other are provided on the end faces of each panel. The end of the panel faces the surface intersecting with the panel, and a double-sided adhesive tape is attached to the intersection corner between the panel and the surface,
A waterproof structure in which a waterproof sheet is stretched from the panel to the surface.   4. The waterproof structure according to claim 1, wherein a reinforcing net is interposed between the double-sided pressure-sensitive adhesive tape and the waterproof sheet.

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