JPH0338379B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for waterproofing roofs made of slate, folded plates, roof tiles, corrugated iron, etc.

Conventionally, as a measure against leaks from roofs made of slate, folded plates, tile rods, or corrugated sheets, attention has been focused exclusively on waterproofing the hook bolt tightening holes.
Countermeasures such as retightening hook bolts or installing bolt caps have been taken, but the reality is that they have not had the desired effect.

As a result of various studies on waterproofing roofs made of slates, folded plates, etc., the present inventor found that water leaks from the joints of slates, folded plates, etc. due to capillary phenomenon. The reason water leakage from the bolt tightening hole was thought to be the cause of rain leakage was because the end of the joint was exactly aligned with the tightening position of the hook bolt.

Based on the above-mentioned facts, the inventor has proposed that Slate,
As a result of researching methods for preventing water leakage from the joints of folded plates, etc., we found that water leakage can be completely prevented by applying the following treatment to the joints, so here we introduce a roof waterproofing construction method. This is what we provide.

The roof waterproofing construction method of the present invention includes a first step of applying a mixture of asphalt and rubber to the joint part of the roof, and then applying a waterproofing agent layer made of asphalt and rubber on the back side of a synthetic resin nonwoven fabric. The second step is to apply the formed tape to make the joint part waterproof.The third step is to apply a base over the entire roof with asphalt and rubber from above this pasted tape. The fourth step is to waterproof the entire roof using a mixture of asphalt and rubber, and the fifth step is to apply a synthetic resin treatment to the entire roof.
This is a method in which the steps are performed sequentially.

The present invention will be explained in detail below.

To explain the waterproofing construction method for a slate roof, after removing dirt such as earth and sand adhering to the slate roof 1 in a preliminary step, the first primer in the first step is sprayed onto the joint portion 2 of the slate roof 1. The first primer is a mixture of asphalt, synthetic rubber, etc., and is a solvent type with a solid content of 10%, and primarily serves as an adhesive.

In the second step, after spraying the first primer,
After 20 minutes, tape 3 is applied to the sprayed area as shown in FIG. As shown in FIG. 2, the tape 3 has a surface layer made of a nonwoven fabric 4 made of synthetic fibers such as polyester, and a waterproof layer made of a mixture of asphalt, synthetic rubber, etc. on the back side of the nonwoven fabric 4. 5 is formed, and a mold release agent 6 is adhered to the back side of the waterproofing agent layer 5. After removing the molding agent 6, the waterproofing agent layer 5 is placed on top of the first primer. Paste.

After waterproofing the joint part 2 in this way, apply the second primer in the third step to the slate roof 1.
Spray on the entire surface. The second primer, like the first primer, is a mixture of asphalt and synthetic rubber, but it is an emulsion type with a solid content of 15%. The second primer is a base treatment agent and is left for one day after spraying.

After the second primer has dried, in the fourth step, an emulsion (85% solids) of a mixture of asphalt and synthetic rubber is diluted and sprayed on the entire surface of the roof for waterproofing purposes, and left for 3 days to 1 week. do. Synthetic rubber latex is used as a diluent and is added in an amount of 2% to dilute the emulsion.

Finally, in the fifth step, an EVA (ethylene monovinyl acetate copolymer) emulsion (solid content 55%) is sprayed over the entire surface of the roof for the purpose of waterproofing, weather resistance, and decoration.
Finish waterproofing construction.

Waterproofing construction of roofs using folded slabs, tile rods, etc. is the same as for slate roofs, except that rust removal and removal of paint floats are carried out in the preliminary process.

According to the present invention, a roof can be completely waterproofed.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a state in which the tape is attached, and FIG. 2 is a sectional view of the tape. Codes in the diagram: 1...Roof, 2...Joint part,
3...Tape, 5...Waterproofing agent layer.

Claims (1)

[Scope of Claims] 1. A first step of applying a mixture of asphalt and rubber to the joint part of the roof, and forming a waterproofing agent layer made of asphalt and rubber on the back side of a nonwoven fabric made of synthetic resin on top of this. The second step is to apply a tape to make the joint part waterproof.The third step is to apply asphalt and rubber to the entire roof surface from above this pasted tape. A method for waterproofing a roof, comprising sequentially applying a fourth step of waterproofing the entire roof surface with a mixture with rubber, and a fifth step of applying a synthetic resin treatment to the entire roof surface.