How to do waterproofing in the home bathroom

1. Screed construction: In order to make the screed layer and the base layer firmly combined, the floating ash and oil stain of the base should be cleaned, and the screed layer should be plastered while sweeping the plain cement slurry during construction, and the corner of the wall around the bathroom should be wiped into an arc of R = 30mm, and the groove around the pipe should be embedded with oil paste. Divided into two plastering, and finally calendering and flattening, the leveling layer should be maintained in time to prevent the leveling layer from cracking, hollowing or sanding.

2. Waterproof layer construction: After the leveling layer is completely dry, the leveling layer will be thoroughly cleaned. The pipe root, floor drain, and surrounding wall root should be coated with a glass wire cloth in an additional layer of coating film, with a diameter of 300mm around the pipe, and 150mm at the corner of the wall along the wall height and the horizontal direction of the floor slab.

When it dries to the point where it doesn't stick to your hands, start applying the waterproof coating as a whole. The overall coating should be carried out in layers, the thickness of each layer of coating film should be uniform, the direction of painting should be consistent, and no coating should be missed. The direction of the two adjacent layers of coating film should be perpendicular to each other, and the time interval should be controlled according to the ambient temperature and the degree of curing of the coating film.

Each overall waterproof layer should be rolled up at least 200mm at the root of the wall. The doorway is paved with a width of 300mm. The thickness of the waterproof layer should meet the design requirements.

3. Acceptance of the waterproof layer (closed water test): After the construction of the waterproof layer is completed, the closed water test must be carried out, and the test time is more than 24 hours. From the bottom of the roof, observe that there is no water seepage and wetting around the perimeter of the pipe and other corners of the wall.

After passing the acceptance of the supervision unit and the construction unit, the concealed acceptance record shall be handled.

6. Protective layer construction: The protective layer on the waterproof layer should survive at one time. During construction, it is necessary to do a good job in the protection of the finished product to prevent the destruction of the waterproof layer. The slope of the protective layer to the floor drain is not less than 3%.

The real waterproof effect is the first use of asphalt paint and other dry before using the current market: JCDecaux K11 waterproof mortar.

After it is completely dry, it should be filled with water for a week to test whether it will leak.

The cement is one-component, dry powder. It is mainly used as waterproof and tensile putty and decorative coating. The product has the characteristics of strong impermeability, large adhesion, good tensile resistance, crack resistance, aging resistance, non-toxic and tasteless, long service life, construction operation is not affected by the dry and humidity of the base layer, and the construction process is simple; The rich color has a good decorative effect and durability, and is mainly used for Daxing waterproof projects, such as swimming pools, etc.

At present, the waterproof materials in the home decoration are mostly polyurethane waterproof coatings, and the waterproof effect of the materials is good, and it is quite environmentally friendly, without pungent smell.

At present, there are better "Yuhong" brand SPU-301 one-component polyurethane waterproof coatings of Oriental Yuhong.

It is made of isocyanate and polyether polyol as the main raw materials, with various additives and fillers through addition polymerization reaction, coated on the waterproof base layer when used, and formed a tough, soft and seamless rubber waterproof film on the surface of the base through the chemical reaction carried out after the contact between the -NCO end group in the polyurethane prepolymer and the moisture in the air.

Scope of application] suitable for basement, toilet, bathroom, kitchen, floor, balcony, roof (non-leakage), pool, cold storage, floor and other waterproof and moisture-proof projects.

Construction technology] The base should be flat, solid, clean, dry, no dust, no particles, oil stains and unevenness, and the yin and yang angles should be made into an arc shape.

Detailed treatment: the pipe root is sealed; Yin and yang corners, pipe roots and other details are coated with additional waterproof layers.

The waterproof layer should be applied and scraped in parts, and each time should be intervaled.

10-16h (the surface is not sticky, after the coating has a certain hardness), the direction of the coating is perpendicular to the upper pass, and the amount of paint is used each time.

Finishing layer construction: In order to increase the adhesion between the facing layer such as the surface brick and the coating film, the general practice is to sprinkle clean medium sand on the surface of the coating film before the last coating film is brushed. 48 hours after the completion of the waterproof layer, the finishing layer is applied according to the design requirements.

You can buy waterproof paint on the dead surface, and the general quality will not exceed 10 yuan a kilogram, and two kilograms per square meter will not cost much?

You can do it yourself, as long as you clean it and see that there are no holes in the wall foot and pipe mouth, you can brush it directly.

My family is mixed with cement and smeared with two poops.

2 Because it should not work.

I do waterproofing, generally use flexible waterproof coating film, inorganic matter does not age, strong weather resistance, can achieve a long-term waterproof effect hehe!Apply it two or three times and you're good to go