Bathroom waterproof construction method materials and precautions

The bathroom is the most exposed part of the water in the family. Therefore, the waterproof construction of the bathroom is a problem that everyone has been paying attention to. The quality of the waterproof construction of the bathroom directly affects the quality of life in the future. Therefore, the waterproof construction method materials and precautions of the bathroom are all To know. Let's tell you about the following small series.

First, the bathroom waterproof construction method

1, try not to damage the original waterproof layer

In the newly delivered buildings, the floor of the bathroom, bathroom and kitchen have waterproof layers according to the relevant specifications. As long as the original waterproof layer is not damaged, it will not leak. However, the common problem nowadays is that some bathing facilities will be added in the decoration and the various layouts of the water and sewage pipelines will be re-arranged or moved. The original waterproof layer has been destroyed, and the repair or heavy method has not been done in time.

New waterproof construction, so it is very prone to leakage.

2, resurfacing the floor tiles to do ground waterproofing

If you need to replace the original floor tiles of the bathroom, after you have cut the original floor tiles, you must first level the floor with cement mortar and then do waterproof treatment, so as to avoid leakage due to uneven thickness of the waterproof coating. Before doing waterproofing, be sure to clean the floor and apply it repeatedly with a polyurethane waterproof coating for 2 to 3 times.

3, must do wall waterproofing

When the bathroom is bathed, it will splash water to the adjacent wall. If there is no waterproof layer protection, the partition wall and the opposite corner wall will be mild and mildewed. Therefore, it is necessary to make the wall waterproof before the wall tile is applied. Generally, the wall surface should be waterproofed to 30 cm in height, but the non-load-bearing light wall should be waterproof. At least To be 1.8 meters high.

4, the water pipe groove in the wall should also be waterproof

During the construction process, when the pipeline, floor drain, etc. pass through the floor, the waterproof layer around the hole must be carefully constructed. The water pipe is buried in the wall to make a reasonable layout. The water pipe is made to make a groove larger than the pipe diameter, the plaster in the groove is smooth, and then the polyurethane waterproof coating is applied in the groove.

5, with 24 hours "water storage test" acceptance waterproof

After the waterproofing project is finished, seal the door and the drain, fill the bathroom floor with water to reach a certain liquid level, and make a mark. If there is no obvious drop in the liquid level within 24 hours, the waterproof will be qualified, such as acceptance. Qualified, the waterproof project must be redone and re-inspected.

Second, bathroom waterproof construction materials

1. Cast reinforced concrete floor slabs.

2, 1:3 cement mortar to find the slope layer, the thinnest part 20MM thick, the slope to the floor drain, once smoothed.

3, Leibang Shi acrylic polymer cement-based waterproofing paste.

4, 30MM thick dry cement mortar bonding layer.

Third, the bathroom waterproof construction precautions

1. Do a leveling. First, use cement mortar to level the floor (especially the house that has been refurbished) and then do waterproofing. This can prevent the waterproof coating from leaking due to uneven thickness or piercing the waterproof membrane.

2, to do a good job. The seam between the wall and the ground and the joint between the upper and lower water pipes and the ground are the most prone to problems. Therefore, these parts must be paid special attention, the treatment must be meticulous, and there must be no sloppy.

3, the wall must also be waterproof. In order to achieve a better waterproof effect, the wall surface of the general bathroom should also be waterproofed to a height of about 30 cm to prevent water from escaping through the wall. The wall adjacent to the bathtub is also water-treated to a height higher than the upper edge of the bathtub, and the shower must be 180 cm high.

4, to do waterproof experiments. After the waterproof construction is completed, all the sewers in the toilet should be blocked and the water injection test should be carried out. Check after 24 hours, if there is no leakage around the wall and floor of the bathroom, the waterproof quality of the bathroom is very good. On the contrary, find out the missing points and carry out maintenance.

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