JPS5998962A - Air vent water-proof sheet and construction thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention eliminates excess vapor pressure due to moisture generated from the base mortar when completely constructing a waterproof layer on the roof of a building, etc.
This article relates to an air-venting tarpaulin sheet that allows air to escape through the entire rising part of the waterproof layer and prevents the waterproof layer from blistering, thereby preventing peeling, chipping, and water leakage of the waterproof layer, and an air-venting waterproofing construction method. be.

Moisture from the mortar base on the roof evaporates due to solar heat etc. and pushes up all parts of the waterproof layer, causing a water leakage accident.Therefore, various deaeration measures have been taken. Many back ventilation sheets have been developed for use on the flat surface of waterproof bases. In other words, it is a roux 7-ing with sand that has a groove on the back side. Gold dust with a large viscous diameter, asphalt board removed from the back.

There are foam boards or sheets made of synthetic resin, rubber, etc. that have an uneven pattern on the back. The conventional method is to affix this on a flat surface and erect a number of degassed cylinders at required locations on the flat surface to degas the air to the outside of the soil. This has become a hindrance to rooftop use and management.

A method has been devised to connect literary perforated pipes to the corners of the roof and the rising edge of the roof to deaerate the air, but this is a cumbersome construction work and is currently not used in practice. The present invention was made in view of the current situation, and it is an object of the present invention to provide a waterproof sheet for air venting, which has built-in ventilation holes and is used by being attached to the upright part, and a method for constructing an air venting waterproof layer using the same. It is something to do.

That is, in the present invention, asphalt is impregnated and applied to roof ink felt paper (2), which has a concave groove (2) that extends to the edge on at least one side, and on one side with the concave groove (2),
A waterproof sheet characterized by laminating and pasting asphalt felt @ to incorporate a space d, one surface of the waterproof sheet is coated with an adhesive ■, and a release paper is applied on top of it. The air venting waterproof sheet ■ is made by pasting the air venting waterproof sheet ■, and the air venting waterproof sheet ■ is attached to the waterproof rising part ■ of the roof of a building etc. while the release paper ■ is removed, and then the air venting waterproof sheet ■ is attached to the waterproof base ■. The ventilation part of the attached back ventilation sheet ■ communicates with the space d of the waterproof sheet for air venting of the present invention ■, and asphalt is applied thereon while the waterproof sheet θ is pasted, and the asphalt surface coating @ Chilled using an air vent waterproof construction method that forms.

Roof ink felt paper, which has concave grooves that extend to the edge on at least one side, can be made using a regular roof ink paper machine, for example, using a wire mesh with a desired uneven shape, while the papermaking raw material is being passed through. When a web is formed by suctioning from the bottom side, it is possible to produce a felt-like base paper with concave grooves in which the convex portions have a high density. Since the convex portions have a high density, the felt paper has high pressure resistance and maintains the space α. Raw materials include waste paper, pulp, animal and plant fibers, glass, asbestos fibers, and synthetic fibers.

Asphalt felt ■ is organic or inorganic fiber felt impregnated with asphalt. O adhesive ■ is made of asphalt, synthetic rubber, synthetic resin softener, etc. and has excellent weather resistance, heat resistance, and pressure-sensitive adhesive properties. I like it.

The construction method is to apply a brimer to the rising and flat parts of the waterproof tip, and after drying, apply the waterproof sheet for air venting of the present invention (■) and remove the release paper ■ (1) so that the concave grooves (2) are released at the top. Crimp the rising part ■. Next, a normal back ventilation sheet @ is attached to the waterproof base (2) on the plane part, and communicated at the corner θ so that the moisture in the base can be ventilated.

Next, asphalt is applied to the entire surface, and a waterproof sheet @ is laid down, and a Kasagi O is installed on the top of the rising part (■) to finish with the asphalt surface coating film to prevent rainwater from entering. The air vent waterproofing construction method is completed.

The waterproof sheet for air venting of the present invention, which is a construction material, is made by impregnating and applying asphalt to phenolic paper having grooves, solidifying it, and pasting asphalt felt on the grooved surface to create a communicating space. Since we have formed a waterproof sheet with a built-in waterproof layer, when this is used as a deaeration hole in the rising part, excess water vapor generated from the base can be easily discharged, preventing blistering, flaking, cracking, and water leakage accidents in the waterproof layer. This can be prevented, and there is no need to set up a conventional vent cylinder, which is effective in eliminating inconvenience and reducing costs.

In addition, since it is a double-layered waterproof sheet with built-in deaeration holes, it has excellent waterproof performance and completely waterproofs the rising parts and corners where water leakage accidents are most likely to occur. Moreover, the rising part is flat,
Finish evenly≠! It has the feature of improving the aesthetic appearance.

[Brief explanation of drawings]

FIG. 7 is a perspective view with a part of the air vent waterproof sheet removed. FIG. 2 is an enlarged sectional view taken along the line A--A in FIG. 1; FIG. 3 is a perspective view showing the construction status of the air vent waterproofing construction method of the present invention. a... Waterproof sheet for air release/... Roof ink felt paper (impregnated with asphalt, coating) Co... Asphalt felt 3... Adhesive μ... Release paper S... Concave groove S'...Space part 6...Mineral powder 7...Rise) part g...Waterproof base 9...Asphalt coating Iθ...Back ventilation sheet l/ ...Waterproof sheet l...Asphalt surface coating 13...Kasa Kili...Corner ridge 3 diagram

Claims (1)

[Scope of Claims] l A roof ink felt paper ■ having grooves communicating with edge grooves on at least one side is impregnated with asphalt and coated with asphalt. This waterproof sheet is characterized by having felt ■ laminated and pasted to completely incorporate the space, one side of the waterproof sheet is coated with adhesive ■, and release paper ■ is fully pasted on top of it. A tarpaulin sheet for air venting. 2 The waterproof sheet for air venting according to claim 7 is pasted on the waterproof rising part (■) of a building rooftop etc. while removing the release paper (■), and the ventilation of the back ventilation sheet (0) is pasted on the waterproof base (■). and the space (■) are communicated at the corner (0), and asphalt (I) is applied thereon, and a waterproof sheet (O) is applied from T.
Air vent waterproofing construction method 0 characterized by pasting the asphalt layer and further forming an asphalt surface coating 01