JP2006124941A - Method for installing waterproof sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for installing a waterproof sheet capable of attractively installing the waterproof sheet by easily and efficiently separably removing the deteriorated waterproof sheet or a method of installing a waterproof sheet for repairing the old waterproof sheet without separably removing. <P>SOLUTION: This method for installing the waterproof sheet comprises a step for induction-heating the fixed plate 13 position of the waterproof sheet 11 fixedly adhered to the thermoplastic resin layer 17 of the fixed plate 13 fixed to a skeleton 20 to release the adhesion for separation, a thermoplastic resin layer stacking step for stacking the thermoplastic resin layer 25 on the fixed plate 13, a waterproof sheet supply step for covering the new waterproof sheet 26, and a stamping step for abutting, heating, and abutting an induction heating device 22 on the fixed plate 13 position of the waterproof sheet 26. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention was applied by fixing a fixing plate having a thermoplastic resin layer as an adhesive layer to a housing such as a rooftop with an anchor, and melting a thermoplastic resin by an electromagnetic induction heating method and bonding a waterproof sheet. The present invention relates to a construction method of a waterproof sheet for performing replacement or repair of the waterproof sheet when the waterproof sheet layer is deteriorated or damaged.

Instead of the method of applying a waterproof sheet by applying an adhesive to the case that is generally performed conventionally, the fixing plate made of a conductor and laminated with a thermoplastic resin is fixed to the case with an anchor, With the waterproof sheet superposed on it, the fixing plate is heated by electromagnetic induction heating from above the waterproof sheet to melt the thermoplastic resin and bond and fix the waterproof sheet and the fixing plate. The construction method is known (Patent Document 1).
JP 2003-35013 A

  In waterproofing methods such as rooftop waterproofing, an ethylene propylene rubber vulcanized sheet having excellent weather resistance is used as the waterproof sheet. Such a waterproof sheet is excellent in weather resistance, but deterioration due to long-term wind and rain or sun exposure is unavoidable, especially when the deterioration is severe even after a certain period or even after a certain period If it is damaged by some mechanical action, it must be replaced or repaired.

  The replacement of the waterproof sheet is generally performed by mechanically peeling the waterproof sheet from the end. Such mechanical peeling is usually a manual operation by an operator, which takes time and has a problem of poor work efficiency. In addition, the vulcanized rubber sheet, which has been partially deteriorated and reduced in strength, breaks and remains in a fixed plate shape. When a new waterproof sheet is applied as it is, unevenness is formed on the fixed plate portion where the rubber sheet remains. Occurs and deteriorates appearance.

  The present invention provides a waterproof sheet construction method capable of peeling off and removing a deteriorated waterproof sheet simply and efficiently and applying a new waterproof sheet with a good appearance, or a waterproof sheet for repairing without removing an old waterproof sheet. It is to provide a construction method.

  The construction method of the waterproof sheet according to the present invention includes a peeling step in which the fixing plate position of the waterproof sheet that is bonded and fixed to the fixing plate fixed to the housing with electromagnetic resin is heated by electromagnetic induction, and the bond is released to peel off. A thermoplastic resin layer laminating step for laminating a thermoplastic resin on the fixing plate, a waterproof sheet supplying step for covering a new waterproof sheet, and an electromagnetic induction heating device in contact with the fixing plate position of the waterproof sheet for heating and pasting. It has the sticking process to wear, It is characterized by the above-mentioned.

  By the construction method of the waterproof sheet having such a configuration, it is possible to peel and remove the deteriorated waterproof sheet easily and efficiently, and to construct a new waterproof sheet with a good appearance.

  Another waterproof sheet construction method is a thermoplastic resin layer laminating process in which a thermoplastic resin is laminated on the fixed plate position of a waterproof sheet bonded and fixed to a fixing plate fixed to a housing with a thermoplastic resin, a new waterproofing A waterproof sheet supplying step for covering the sheet, and a sticking step for heating and sticking the fixing plate position of the waterproof sheet with an electromagnetic induction heating device are provided.

  The construction method of the waterproof sheet of the structure which concerns has a peeling process of the lower old waterproof sheet, and is a further simple construction method.

  In the construction method of the above waterproof sheet, since a more excellent adhesive force can be obtained, it further includes a buffing step of buffing at least the waterproof sheet at the fixed plate position before the thermoplastic resin laminating step. It is preferable.

  As the waterproof sheet newly constructed in the present invention, a known waterproof sheet can be used, and a rubber sheet using a rubber material having excellent weather resistance such as ethylene propylene rubber and butyl rubber is preferably used. The waterproof sheet used may be the same material as the old waterproof sheet to be replaced, or a different material. When constructing a new waterproof sheet without peeling off the old waterproof sheet, it is preferable to use a waterproof sheet of the same material because good adhesiveness can be obtained.

  Examples of the thermoplastic resin used for adhesion include polyethylene, polypropylene, polyolefin resin that is a copolymer of ethylene, propylene and α-olefin, and ethylene-vinyl acetate copolymer (EVA resin). .

  Each process of the construction method of the waterproof sheet of this invention was shown in FIGS. 1-4 with the fragmentary sectional view. 1 and 2 show a peeling process. In FIG. 1, an electromagnetic induction heating device 22 is brought into contact with a fixing plate 13 of a waterproof sheet 11 bonded to a fixing plate 13 fixed to a housing 20 with an anchor 15 by a thermoplastic resin 17 and heated. The heating process of melting the thermoplastic resin 17 is shown.

  The waterproof sheet 11 is peeled off as shown in FIG. 2 until the thermoplastic resin 17 is cooled and solidified. Since the thermoplastic resin peels in a fluid state, the old waterproof sheet can be easily peeled off. Heating and peeling by the electromagnetic induction heating device 22 are preferably performed in order from the end of the waterproof sheet 11. However, the thermoplastic resin is cooled and solidified with the waterproof sheet 11 peeled off at the center. Further, the waterproof sheet 11 may be removed at once by peeling off the end portion later.

  FIG. 3 illustrates the thermoplastic resin lamination step. Due to the electromagnetic induction heating and the peeling of the waterproof sheet 11, the thermoplastic resin layer on the fixing plate 13 is thin, and even if the new waterproof sheet is covered as it is and the electromagnetic induction heating is performed, sufficient adhesive force cannot be obtained. . Preferably, a thermoplastic resin film (film or sheet) made of the same material is provided on the fixing plate 13 by applying a thermoplastic resin layer or a thermoplastic resin film or sheet. By forming the thermoplastic resin layer 25, a new waterproof sheet is covered and electromagnetic induction heating is performed, whereby a predetermined adhesive force is obtained.

  The thermoplastic resin may be laminated by an applicator in the molten state, or a film-like (film-like or sheet-like) thermoplastic resin may be simply placed or attached by temporarily fixing with an adhesive or adhesive. Alternatively, it may be laminated by spraying as shown in FIG. Spray lamination is suitable because of its short construction time.

  FIG. 4 shows a waterproof sheet supply process and a sticking process. A new waterproof sheet 26 is coated on the fixing plate 13 on which the thermoplastic resin 25 is laminated (waterproof sheet supplying step), and the upper part of the fixing plate 13 is heated by applying an electromagnetic induction heating device 22 to heat the thermoplastic resin layer 25. Is melted and the waterproof sheet 26 is bonded, and then the thermoplastic resin layer 25 is cooled to fix the waterproof sheet 26.

  FIG. 5 illustrates a construction method of a waterproof sheet for repairing without peeling off the waterproof sheet 11 to be replaced. On the old waterproof sheet 11 to be repaired, the thermoplastic resin 25 is laminated at the position of the fixed plate 13 (thermoplastic resin lamination step). In this construction method, before the thermoplastic resin laminating step, it is preferable to clean the surface of the old waterproof sheet 11 and further buff (buffing step) from the viewpoint of obtaining good adhesive force.

  After the thermoplastic resin 25 is laminated at the position of the fixing plate 13 by the thermoplastic resin laminating process, a new waterproof sheet 27 is coated on the old waterproof sheet 11, and the electromagnetic induction heating device 22 is applied to the upper position of the fixing plate 13. Then, the fixing plate 13 is heated to melt the thermoplastic resin layer 25 laminated on the surface of the waterproof sheet 11, and the old lower waterproof sheet 11 and the new waterproof sheet 27 are bonded and fixed.

Sectional drawing which showed the heating state in the peeling process of the waterproof sheet which carried out adhesion construction Sectional drawing which showed peeling operation in the peeling process of the waterproof sheet which was bonded and constructed Sectional drawing which showed the thermoplastic resin lamination process by spraying on a fixed plate after a peeling process Cross-sectional view showing waterproof sheet supply process and sticking process Sectional drawing which illustrated the construction method of the waterproof sheet which repairs without peeling a waterproof sheet Sectional drawing which showed the sticking process which adheres and fixes the old waterproof sheet and the new waterproof sheet with the electromagnetic induction heating device

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Waterproof sheet 13 Fixed plate 17 Thermoplastic resin layer 20 Housing 22 Electromagnetic induction heating device 25 Thermoplastic resin layer 26 Waterproof sheet

Claims (4)

  Separation process in which the fixing plate position of the waterproof sheet bonded and fixed to the fixing plate fixed to the housing by electromagnetic induction heating is released by electromagnetic induction heating, releasing the adhesion, and laminating the thermoplastic resin on the fixing plate A thermoplastic resin layer laminating step, a waterproof sheet supplying step for covering a new waterproof sheet, and an attaching step for heating and sticking an electromagnetic induction heating device in contact with the fixed plate position of the waterproof sheet. The construction method of the waterproof sheet.   A thermoplastic resin layer laminating step of laminating a thermoplastic resin on the fixing plate position of the waterproof sheet adhesively fixed to the fixing plate fixed to the housing with a thermoplastic resin, a waterproof sheet supplying step of covering a new waterproof sheet, And the construction method of the waterproof sheet which has the sticking process which heats and sticks the said fixed plate position of the said waterproof sheet with an electromagnetic induction heating apparatus.   Furthermore, the construction method of the waterproof sheet of Claim 2 which has a buffing process of buffing at least the waterproof sheet of the said fixed plate position before the said thermoplastic resin lamination process.   The waterproof sheet construction method according to any one of claims 1 to 3, wherein the thermoplastic resin layer laminating step is a step of spraying a thermoplastic resin or a step of attaching a thermoplastic resin film.

Images