The waterproofing of the bathroom is a problem that many people are very concerned about. How to make the bathroom waterproof? Let’s take a look at the method of waterproofing the bathroom.
The specific method is as follows:
1. Use cement mortar on the ground to find a slope toward the floor drain, but the surface should be flat. The slope near the door is small, and the slope near the floor drain is large.
2. The pipeline passes through the root of the floor and near the floor drain to enhance waterproofing. The root of the pipe should be tightly sealed with building sealant. After the cement is smoothed to protect the feet, when the waterproof paint is applied, one or two layers of glass cloth reinforcement should be pasted.
3. The wall surface is clean and flat without floating dust and small particles, and the junction of the wall and the ground is wiped with a small original angle or slope angle. When painting waterproof paint, paste 1~2 layers of glass cloth reinforcement layer.
4. The total thickness of polyurethane waterproof coating is required to be more than 1.5mm. It cannot be determined by the number of passes. The root of the pipe and the reinforced layer of the wall corner should be brushed first, and after 4 hours at room temperature, the surface should be dry, and then brush and scrape on a large area. There must be no leaking or bubbling. After 24 hours of curing on a large area, apply the next layer.
5. First paint the facade and then paint the plane, and the direction of the next painting is perpendicular to the previous one. When the coating film is semi-cured for the last time, the coarse sand is thrown to facilitate the combination with cement mortar in the future.
6. The ground waterproof layer should be painted to a width of 300mm outside the bathroom door. Waterproof ground The waterproof layer should be 200mm above the ground.
7. Do a 36-hour closed water test as required.
Main points of bathroom waterproofing project
The waterproof project of the bathroom is one of the places where problems are most likely to occur in home decoration. If there is a problem with the waterproof project, the water stains will invade the next room at least, and will seep downstairs at worst, causing serious losses to family members and neighbors. In order to avoid these unnecessary troubles, special attention should be paid to the waterproofing of the bathroom when carrying out home decoration.
1. The wall should be waterproofed. In order to achieve a better waterproof effect, the wall of the general bathroom should also be waterproofed with a height of about 30cm to prevent accumulated water from seeping through the wall. The height of the waterproof treatment on the wall adjacent to the bathtub should also be higher than the upper edge of the bathtub.
2. Make a flat ground. If you want to replace the floor tiles in the bathroom, after the original floor tiles are chiseled out, the ground should be leveled with cement mortar first, and then waterproofed. The joints between the bathroom wall and the ground and the joints between the upper and lower water pipes and the ground are the places where problems are most likely to occur. This can prevent the waterproof coating from leaking due to uneven thickness or piercing the waterproof membrane.
3. Do a good job in key parts. The joints between the wall and the ground and the joints between the upper and lower water pipes and the ground are the places where problems are most likely to occur. Therefore, these parts must be paid special attention to, and the treatment must be meticulous, without the slightest sloppy.
4. Do waterproof test. After the waterproof construction is completed, all the sewers in the bathroom should be blocked, and a “low wall” should be built at the door of the bathroom to conduct a water injection test. The water injection height should be about 20cm. Check after 24 hours. If there is no leakage on the walls and floors around the bathroom, it means that the waterproof quality of the bathroom is very good. On the contrary, it is necessary to find out the leak point and carry out maintenance.
