Don’t want to see waterfalls at home? The bathroom waterproofing project must be done well!

Hard decoration is more "hard-core", and if you are not careful, it will cause hidden dangers for future living. One of these includes waterproofing.

How to do waterproofing projects

Waterproofing projects generally include: wall and floor base treatment, waterproof coating, closed water test and other steps.

1. Treatment of the base layer of walls and floors

The surface of the base layer needs to be smooth, clean and firm. Generally, the floor with rough cement base has good adhesion of the waterproof coating, but if the cement floor If it is not too rough, you can apply a waterproof layer directly.

Ground treatment: Before waterproofing, the ground needs to be leveled and a drainage slope must be prepared first; highly elastic flexible waterproof coatings must be used at joints such as floor drains, wall corners, pipe roots, etc.;

Wall surface treatment: There should be no trachoma or looseness on the wall; the newly made water supply pipes should be firmly fixed and no pipes should be exposed after backfilling; no pipes should leak out or have cracks after backfilling; the pipe root openings and wall corners should be polished Processed in arc angle.

2. Applying waterproof slurry

The waterproof layer is to apply waterproof paint, usually 2-3 times.

1. First, focus on painting at the mouths and corners of water supply and drainage pipes, and then paint from the inside out;

2. When painting, it should be even and consistent, and there should be no leakage. Brush, once every 24 hours horizontally and vertically. There should be no honeycombs. The thickness of the coating must meet the requirements of the waterproof product used. 3. During the painting project, you need to wait for the previous paint to dry before applying the second time. Because drying time affects the construction schedule, some workers do not wait for the paint to dry completely before applying the next layer. However, if the paint is not dry and the waterproofing membrane is not fully formed, it will increase the chance of water seepage in the future, so the homeowner needs to supervise this stage. The general drying time is 2-4 days. The criterion for "dry" is that "the surface film must not be damaged when walking on the floor."

3. Closed water test

The closed water test is also called the water storage test. It requires 24-48 hours of water storage in the kitchen, bathroom, balcony, and basement. The height of the water storage Above 200mm (balconies are required to be reduced according to the partition height).

In the early stage of the test, check downstairs every hour, and in the later stage, check every 2-3 hours. If water leakage is found, the water storage test should be stopped immediately and the waterproof layer should be improved again.

Points to note in waterproofing projects

The bathroom is the place where we use the most water every day, so a closed water test must be done after the waterproofing project is completed.

The floor and walls of the bathroom need to be waterproofed. Under normal circumstances, the height of the surrounding wall should be kept not less than 300mm, the wall surface of the shower room is not less than 1.8m high, and the wall surface of the wash basin and bathtub is not less than 950mm high.

In addition, it should be noted that the most common locations for water seepage in bathrooms are: Yin and Yang corners, pipes, roots of sanitary ware, floor drains, etc., so when doing waterproofing, these parts should be painted more intensively (apply 2 more -3 times).

The above are some strategies related to bathroom waterproofing. I hope it will be helpful to everyone, thank you.

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