The bathroom should be waterproofed several times

1. The waterproofing of the bathroom generally needs to be brushed 2-3 times.

2. The specific practices are as follows:

1. Use cement mortar on the ground to find a slope in the direction of floor drain, but the surface should be smooth. The slope near the entrance is small, and the slope near the floor drain is large.

2. The pipeline passes through the root of the floor slab and near the floor drain to strengthen the waterproofing. The pipe root building sealing paste is tightly sealed, and the cement is smoothed after the foot guard, and when the waterproof coating is brushed, the glass wire cloth is reinforced with 1 or 2 layers.

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

4. The total thickness of the polyurethane waterproof coating film is required to be more than millimeters. It can't be decided 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. There shall be no leakage and bubbling. Brush a large area for 24 hours and then apply the next layer after curing.

6. The waterproof layer on the ground should be painted 300mm wide outside the door of the bathroom. The waterproof layer of the waterproof ground should be 200mm higher than the ground.

7. Do a 36-hour closed water test as required.

3. The waterproof height of the bathroom.

The height of the waterproof layer in the wall, column and other parts (above the finished surface of the indoor ground) should not be less than 100mm; The walls of high-humidity rooms (such as bathrooms) or walls that are directly exposed to water (such as showers and urinals) should be waterproofed, and the waterproof layer should be painted as follows:

1. Install the wall with hose shower head and the wall on both sides from the ground 1800mm;

2. The wall surface of the shower head installed with a dark pipe (no hose) and the walls on both sides of the wall from above the ground should not be lower than the height of the shower head, and should not be less than 1800mm;

3. The wall in contact with the bathtub is 300mm from the ground to the top of the bathtub;

4. The wall in contact with the washbasin is 300mm from the ground to the top of the washbasin;

5. The urinal is 1800mm above the ground;

6. The pipe (including the casing) through the floor slab is 100mm above the root of the pipe.