How to do waterproofing in the bathroom

How do you make a bathroom waterproof? Let's find out.

Bathroom waterproofing needs to be painted with waterproof paint twice, the first waterproof coating needs to ensure that it is firmly combined with the base layer, and then brush the second time after the first paint is dry, and then carry out a closed water experiment after completing the brushing, and observe that there is no leakage before it is completed.

Brush the waterproof paint for the first time, ensure that the site is clean and dry before construction, the waterproof coating should be filled, and firmly combined with the base layer, no cracks, no bubbles, no falling off, the height of the orange brush is consistent, and the thickness should meet the requirements of the product. Brush the second waterproof paint, pay attention to the need for a certain time interval with the first waterproof paint time, and wait for the first coat of paint to dry before the second coat. When conducting the closed water test, the water at the highest point of the ground should not be less than 2cm, and it should be stored for at least 24 hours, and it will be completed only after observing that there is no leakage.

That's all for today's sharing, I hope it can help everyone.

1.Do a good job of the base Usually the ground is a cement mortar surface, there are some special circumstances, such as the pipeline is not buried, the ground is uneven, so, the base should be smooth, the surface should be smoothed and calendered, solid, there shall be no hollowing, sanding, cracking and other phenomena, the moisture content of the base should meet the construction requirements of waterproof materials, not greater than 9.

2.The flooding slope of the screed layer should be 2, and the slope of 5 (1 20) should be erased at the root of the pipe against the wall to avoid water accumulation here.

3.Pipe roots and floor drains that protrude from the floor and walls. Drains, yin and yang angles and other parts that are prone to leakage should be treated with local special plugging.

4.Stir the paint well, open the paint packaging barrel, and stir well with a stirrer for about 5 10 minutes until the material does not contain agglomerates and does not precipitate. Generally, mechanical mixing is used, and manual mixing is not appropriate.

5.The first layer of coating film: the waterproof coating is evenly scraped on the surface of the base layer that has been coated with primer with a plastic or rubber scraper, the thickness is, to be uniform, the amount of scraping is appropriate, the operation of the wall first and then the ground, from the inside to the outside of the operation, the coating should be as uniform as possible, there can be no local deposition, no bubbles, and the bond is tight.

When used on a wet or non-absorbent base layer, there is no need to lay the bottom layer.

6.THE WATERPROOF LAYER SHOULD EXTEND FROM THE GROUND TO THE WALL, 250MM ABOVE THE GROUND The height of the waterproof layer on the wall of the bathroom near the shower head shall not be less than 1800MM.

7.When the first layer of coating film is solidified to non-sticky hands, the second coating film waterproof construction is carried out according to the first material construction method. In order to make the thickness of the coating film uniform, the direction of scraping must be perpendicular to the direction of the first scraping, and the amount of scraping is slightly less than that of the first pass, and the thickness is appropriate.

8.THE WATERPROOF LAYER OF THE COATING FILM IS EVENLY PAINTED, AND THE GENERAL THICKNESS SHALL NOT BE LESS THAN 1 5MM, ESPECIALLY FOR FAÇADE CONSTRUCTION, ONE OR MORE LAYERS CAN BE ADDED. When adding non-woven fabrics, the lower coating and upper coating should be continuously constructed, and the non-woven fabrics should be paved straight, and brushed with a brush without leaving a hollow drum.

9.The waterproof surface of the coating film is not blistering, does not flow, is smooth and has no concave and convex, and the joints of pipe fittings, sanitary ware feet, floor drains, and drainage outlets are tight, and the end is smooth and non-leaking.

10.After the waterproofing project is completed, a 24-hour closed water test must be done.

We all know that the waterproof construction of the bathroom is very important, if the waterproof of the bathroom is not done well, there will be endless troubles, let me tell you about the construction process of the bathroom waterproofing.

1. The bathroom is waterproof, and the surrounding walls need to ensure that the height of the painting is not less than 30 cm; If there is a shower, the height of the waterproof paint applied on the installation of the shower faucet and the adjacent wall should not be less than 150 cm, preferably about 180 cm.

2. After the waterproofing is done, the closed water test should be done. It is to put the water on the floor of the bathroom, so that the ground is completely submerged in water about 3 4 cm, and set a fixed elevation (horizontal plane); After 24 hours, if the water level is below the set elevation, it means that there is a water seepage problem on the ground, that is, the waterproofing is not done well. In this way, it is necessary to re-do the waterproofing.

3. After the bathroom waterproof coating is brushed, tiles should be pasted on it, so cement-based waterproof materials should be used to paint. The advantage of cement-based waterproof material is that it can be bonded with the cement base layer, its adhesion is very good, and it will not shell after pasting the tile. Other (non-cementitious) waterproofing materials are prone to shelling, which can cause wall tiles to fall off.

The above is the construction of bathroom waterproofing sharing, it is recommended that you buy a little waterproof material, ask a professional master to build, so as to ensure the effect of construction!

1. Ground treatment.

Before waterproofing, be sure to level the ground, if the ground is uneven, it may affect the effect of waterproofing, and may also cause cracking and leakage caused by uneven thickness of waterproof coating. Floor drains, wall corners, pipe heels and other joints should be painted with high elasticity and flexible waterproofing, because the joints between the wall and the floor of the bathroom will be displaced, and water seepage is most likely to occur.

2. Wall treatment.

If the bathroom has a shower room, the waterproof should be 180cm, and if there is a bathtub, the waterproof height of the wall adjacent to the bathtub should be 30cm higher than the bathtub

3. After the waterproof layer is done, a certain amount of time should be left to make the waterproof layer better integrated with the building, and then the protective layer on the waterproof layer and then paved the floor tiles.

4. Waterproof construction is a concealed project, and the follow-up construction may also damage the waterproof layer, if the floor tiles have been laid, do not smash the floor tiles, use professional waterproof materials to plug all the gaps and do a good job of waterproofing. It is also suitable for waterproofing projects after the failure of the waterproof layer in the bathroom.

5. Waterproofing is a systematic project, and the causes and treatment methods are different in each place. Materials are the foundation, construction is the key, and follow-up service is the guarantee.

There are many kinds of waterproofing, rigid, flexible. Painted, pasted. It's up to you to see what you need.

To do waterproofing in the bathroom, we must first understand the standard requirements of waterproofing. The waterproof floor of the bathroom needs to be done all, and the wall should be at least full high, and it is recommended to do it with full height, if it is a lightweight wall, then it must be done with full height.

At the same time, the most susceptible to water seepage in the bathroom is the yin and yang corners, pipes, sanitary ware, floor drains and other places, and ordinary waterproof materials are the easiest to ignore these parts, resulting in the final leakage. The kitchen and bathroom waterproof slurry is specially developed for these leakage parts, first repair and strengthen with quick-setting repair mortar, and then use permanent waterproof slurry to do waterproofing as a whole, so as to ensure the waterproof effect.

Toilet waterproofing practices:

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.

There are 2 common types of paint waterproofing:

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

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

Asphalt-based waterproofing coatings are basically gone.

Polyurethane waterproof coating is generally practiced as follows:

1. The ground is oriented to the slope of the floor drain, cement mortar or bean stone concrete, but the surface should be smooth. 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.

2. 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. 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 300 wide outside the door of the bathroom. 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).

1.It is very necessary, in case there is really a water leak to resist for a while, otherwise the people downstairs will be noisy, and they will really have to smash their bathroom floor to repair.

2.Remember to clean the bottom layer before waterproofing, as for what kind of material is different, it is generally smeared waterproof, and it is essential to complete the water test.

3.It is very necessary to waterproof, and it is recommended to turn the waterproof up to one person's height to avoid excessive moisture on the wall.

4.After the waterproof material is dried, the follow-up construction must be careful not to break it, otherwise it will fall short.

5.The process has already been introduced.

It is strongly recommended that the bathroom of the sunken floor should not be filled with pit backfill, and the general sunken toilet is the same floor drainage system, and the backfill can be changed to the process tempered glass that can be paved on the person, which is both beautiful and practical, and can be directly observed or repaired in case of waterproof or pipeline problems. At the same time, a side drain can be installed on the sunken floor to drain it in case of water.

1. In terms of China's current design, construction specifications and standards, the waterproofing of kitchens and bathrooms is mainly based on the self-waterproofing of the house structure, such as the floor of the bathroom is cast-in-situ reinforced concrete, and a 150-200 high concrete waterproof edge with the floor slab is set around, and it is stipulated that each kitchen and bathroom must be stored for 24 hours before the completion of the house, and the three parties confirm that there is no leakage and record the archive before handing over the house. There is no such thing as a special waterproofing layer that is not needed at all. In fact, it is difficult to guarantee even if the materials and construction process are done, and it is even more difficult to deal with local leaks.

2. In fact, because of the temperature and concrete maintenance during the construction of the house structure, there is indeed a phenomenon of water leakage after the delivery of a small number of toilets. If you feel unsure, it is recommended to do this: block all the drains in the bathroom with broken clothes, old towels, etc., and then put water up and down 50mm above the ground, store water for more than 24 hours, and carefully check the bottom of the floor and the outside of the bathroom wall.

If there is no leakage, it is OK; If there is a local leakage, find the property to deal with it, and the waterproof project of the house is guaranteed for five years. Just a little more water storage and a check, and you'll be fine. Simple, hassle-free and money-saving.