How to do the bathroom level 2 waterproofing

Bathroom waterproofing practices What is it, how to do the bathroom waterproofing, how to do the bathroom waterproofing, these issues are more concerned about the owners. Tuba Rabbit will solve your doubts and introduce the practice of bathroom waterproofing.

1. Waterproof coating for toilets

1. Waterproof with paint

The toilet space of ordinary residential buildings is narrow, and there are pipelines passing through the floor slab, so the coating is commonly used for waterproofing and the membrane is rarely used for waterproofing.

2. Two kinds of waterproof coatings for toilets

Nowadays, the materials used for waterproofing are generally paints, and asphalt-based waterproofing coatings are basically not used. Here are two coatings commonly used for waterproofing in the bathroom.

1) Synthetic polymer polyurethane waterproof coating (polyester cloth, glass fiber cloth, etc. are required for corners, etc.).

2) SBS waterproof coating of polymer modified asphalt (need to add carcass reinforcement materials, polyester cloth, glass fiber cloth, etc.).

Second, the toilet waterproof practice

1. Ground leveling before waterproof treatment of the bathroom

The ground is oriented to the slope of the floor drain, cement mortar or bean stone concrete can be used, but the surface should be flat. The slope near the door is small, and the slope near the floor drain is large, so you can grasp it according to the specific situation. The ground is uneven, and it may be uneven when applying waterproof coating, or the ground is easy to crack because of unevenness, which will crack with the ground even if the waterproof paint is applied.

2. Strengthen waterproofing at the root of the pipeline

The pipeline passes through the root of the floor slab to strengthen the waterproofing. After the pipe root building sealing paste is sealed tightly, and the cement is smoothed and the foot pads are smoothed, the glass wire cloth reinforcement layer is 1 or 2 layers when brushing the waterproof coating. The same measures are taken near the floor drain.

3. Waterproof wall treatment in the bathroom

The wall surface is clean and flat, without floating ash and small particles, and the original corner or slope angle is wiped at the junction of the wall and the ground. When brushing waterproof coating, paste 1 2 layers of glass wire cloth reinforcement.

4. The thickness of polyurethane waterproof coating film

The total thickness of the polyurethane waterproof coating film is required to be more than millimeters, which cannot be determined by the number of passes. The pipe root and the corner of the reinforcing layer are brushed first, and after the surface is dried at room temperature for 4h, then a large area is brushed and scraped, and there shall be no leakage and bubbling, and the next layer is painted after 24h curing after large-scale brushing.

5. Waterproof painting of the bathroom 6. Requirements for waterproof floor painting in the bathroom

The waterproof layer on the ground should be painted 300 wide outside the bathroom door. The waterproof floor waterproof layer should be 200 meters higher than the ground, and the wall waterproof layer of the bathroom with shower should be 1800 meters higher than the ground (L8 recommends waterproofing the full wall).

Waterproofing materials for toilets

Toilet waterproofing specifications

Bathroom waterproofing precautions

Bathroom waterproofing material price

Toilet waterproofing material brand

This is very simple, secondary waterproofing means that if there is a leak in the ground, it can be discharged from the secondary drainage. When making the toilet drain pipe, add an extra floor drain with a trap in the corner or middle of the bathroom, pay attention to be sure to connect it to the drain pipe, not to the sewage pipe. The height is 20cm lower than the ground to complete the surface, and the backfill is backfilled to the secondary drainage after the first waterproof acceptance, and the cement sand leveling is placed on the slope towards the secondary floor drain, and the enlargement point is done in waterproofing, and the secondary floor drain is added to a leakage net not to let the backfill fall into, and then in the backfill, in the leveling, do waterproofing.

Before doing waterproof construction, the base should be treated, the original decorative materials should be removed, the floating soil and cement sand should be cleaned up, the surface should be smooth, and then the surface should be cleaned with cleaning, and then the waterproof should be brushed twice in the treated place, and then the water should be tested after the waterproof is dry. It is recommended that the waterproof height of the wall brush is subject to the height of the tiling. Bathroom caisson and kitchen, balcony ground to do the "water" test, "water" test is an important means to test the indoor waterproof quality.

After the waterproofing construction is completed, seal the door and the sewer outlet, fill the room with water to reach a certain liquid level height, and go downstairs to the residents downstairs to observe whether there is leakage in the ceiling after 48 hours. After the completion of the "water masking" test, make another layer of cement mortar protective layer on the waterproof coating layer, taking care not to damage the waterproof coating layer that has been made.

Wash the toilet first, remove the sediment, brush a layer of waterproof paint after air drying, brush a layer after air drying, and then wait for air drying to drill a small hole in the sewer main (the lowest point can be 1mm in diameter, be careful not to damage the waterproof layer, such as the destruction of the hole, you need to recoat the waterproof coating here, you can also drill it at the beginning), mainly used for the discharge of water collection in this layer (the lowest layer).

Install the drainage pipe as required, divide the pit into multiple small grids with bricks, fill it with ceramite, properly lay some steel bars on the surface, and then level it with mud, and finally apply the anti-coating twice, and drill small holes at the lowest point of the main pipe for drainage (this is the so-called secondary drainage).

Leveling with mortar!

This is the last look, the small white pipe in the middle is the secondary drain I set up, and after doing these, you can lay bricks on it!

1. Cement mortar leveling can avoid leakage caused by uneven thickness of waterproof coating or leakage of waterproof coating, and the slope and slope of the screed layer should meet the design requirements, and the flow of water should be smooth without stagnant water. 2. After dealing with the gaps, the holes around the pipes should be chiseled and then poured with cement, and the joints between the wall and the ground and the joints between the water and water pipes and the ground are the most likely to have problems, so the treatment should be more meticulous and not sloppy. 3. The surface of the protective layer should be firm, dry, clean and flat, and there should be no hollowing, sanding, and wet molting, and the yin and yang corners should be made into an arc.

4. Brush the waterproof slurry and brush the waterproof slurry on the base layer, and use the strength evenly; Generally, it needs to be painted twice, and the thickness of each painting does not exceed 1; After the first slight drying, the second painting (generally 1-2 hours apart) is carried out, and the criss-cross method is used to apply when painting; If the coating has already cured, moisten it with water first when applying another layer. 5. After 24 hours of coating curing construction, it is recommended to cover the coating with a damp cloth or spray water to maintain the coating, and it is forbidden to step on, expose to the sun, and sharp damage before it is completely dry. After the waterproof layer is dried and solidified (at least 24 hours in summer, at least 48 hours in winter), 48 hours after it is filled with water, check whether the waterproofing is qualified, and the lightweight wall should be sprayed with water.