JPS6088752A - Water-proof construction method - 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 relates to a waterproofing method for constructing roofs, etc., and in particular, by using a multi-layered waterproof notebook on hydrated mortar and concrete surfaces, dewatering vapor (hereinafter referred to as "deaeration") is applied. Concerning a waterproofing method that increases the total strength of χ;I and reduces the effects of a waterproof layer.

Conventionally, waterproofing work has been carried out on flat roofs, but in concrete IJ-1, the water contained inside the mortar becomes steam due to the outside temperature, etc., and the pressure of this steam pushes up the waterproof sheet, so waterproofing is required. There are many cases where defects such as blistering and disputes occur, and the waterproof function of wood grain cannot be guaranteed.

In an attempt to reduce blistering and peeling by fully dispersing the pressure caused by water vapor on the waterproof sheet, we have proposed installing communication fronts of various shapes on one side of the waterproof layer, as well as degassing panels and desorption plates to discharge all the water vapor to the outside. Proposal of construction method for installing cylinders,
Ventilation Ifli'f between the waterproof sort and the frame such as a flat roof:
Proposals have been made to install it on-site, but all of them have the drawbacks of low reliability in deaeration and the need for many waterproofing construction steps. Although on-site installation methods are well known, in this method the non-woven fabric is attached to the structure of a flat roof etc. and a waterproof sheet using an adhesive on-site, so the application of the adhesive cannot be strictly controlled.
The amount of application becomes extremely uneven depending on the area, and in areas where too much application is applied, the non-woven fabric becomes clogged and has no ventilation effect at all. The drawback was that it made the work complicated.

The present inventors have solved the disadvantages of low reliability for degassing and the disadvantages of increasing the number of waterproofing work steps,
The present invention was developed as a result of intensive research to fully guarantee the original waterproof function with no blistering or peeling. This method consists of waterproofing a multilayer structure in which a nonwoven fabric having a traced bamboo layer is attached to the back side of a two-layer waterproof sheet.

The multilayer waterproof sheet used in the waterproofing method of the present invention refers to a single layer waterproof sheet made of materials selected from vulcanized rubber, non-vulcanized comb, polyvinyl chloride, rubber asphalt, etc. It is attached to the back of a two-layer waterproof sheet with a protective coating applied to the surface of the waterproof notebook using an adhesive that is evenly applied under strict control at the breathable Fuki Illii factory. It is something. In this way, by doing the waterproof sorting of the already integrated multi-layered structure on-site, the adhesive coating process can be controlled at the factory, and the non-woven fabric will have excellent breathability, with no scratches at all. This makes it possible to create a waterproofing method with even higher degassing reliability. The adhesive to be used is preferably an acrylic adhesive, a vinyl acetate adhesive, a chlorograne latex or solvent bath solution, a nitrile rubber latex or a solvent solution, and it is particularly preferable to use a chloroprene solvent solution. The appropriate amount to apply is one that does not cause peeling between the waterproof notebook and the non-woven fabric, and a suitable amount is 10 to 30 A+lF. /n? There is a risk of losing the contact effect if it is less than
If it exceeds 30 fl/ni', there is a risk that some part of the breathability will be lost. When applying, please use spray coating.
Extrusion, L [cloth, roller coating 1] and curtain coating are fine, but the method of applying an endless waterproof notebook V-contact/sound agent roller, pasting the non-woven fabric, and then applying a bonding agent This is a more preferable method because the application fan is more dense and the workability is also excellent.

The nonwoven fabrics used are animal, vegetable, mineral, and synthetic resin nonwoven fabrics, and there are no restrictions on the raw materials 1 as long as they are permeable. The thickness of the nonwoven fabric may be about 1 to 10%, and is preferably 3 to 10% to ensure good air permeability.

When constructing such a multilayered waterproof sheet, a degassing pipe, a degassing cylinder, or a degassing board is provided, and water vapor is suspended by a nonwoven fabric and vented to the outside through a degassing pipe or the like for ventilation.

Before implementing the waterproofing method of the present invention, the ground work, such as adjusting the unevenness of the structure and treating cracks, etc., and r! lI money alms,
After applying the primer, apply the multi-layered waterproof notebook (a) in which a breathable nonwoven fabric is attached to the back of the waterproof layer. At that time, the degassing pipes and degassing cylinders are set at one location every 25 to 50 m2 in accordance with the movement of water vapor, and the degassing cylinders are installed in all stages, and then finished with a protective coating.

As described above, the waterproofing method according to the present invention has a layer of nonwoven fabric that is reliably breathable over the entire surface of the waterproofing method construction site ([SirlFJ
ChL, '°J-1ff+'about 2XXkMR1-&”Y
-7J-/A/III/r woven fabric Compared to the waterproofing method, which is applied at all sites, the reliability of degassing is much higher, and conversely, there is no extra process for installing a non-woven layer at the site V. The construction process will be reduced.

Patent applicant: Japan Special Paint Co., Ltd. Procedural amendment ■ (method) February 14, 1159 Commissioner of the Patent Office 1.Display of the incident 1981 Patent Application No. 193515 2. Name of the invention waterproofing method 3. Person who makes corrections Relationship to the incident: Patent applicant Postal code 114 January 11, 1982 (Shipping date: January 318, 1982) 5. Number of inventions increased by amendment O 6. Subject of correction Full statement 7. Contents of correction

Claims (1)

[Claims] A waterproofing method characterized by using a multi-layered waterproof sheeter made by pasting a breathable non-woven fabric on the back side of a single-layer or two-layer waterproof sheet with a colored layer.