The house is going to be renovated, and there is waterproof putty on the original wall, does it need

Depending on your question, whether you need to remove waterproofing putty from the original wall will depend on your specific needs and budget. If you want to maintain the original waterproofing effect during the renovation process, then you don't need to remove the waterproofing putty from the original wall. However, if you plan to re-waterproofing or replace the wall covering, it is necessary to remove the waterproofing putty from the original wall.

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In terms of cost, according to the local market price, the range of waterproof putty for removing the original wall is about 10-30 yuan per square meter. The exact cost is affected by several factors:

1.Wall area: The cost of removing waterproof putty is directly proportional to the area of the wall, the larger the area, the higher the cost.

2.Wall coverings: Different wall coverings require different treatments, which may affect the cost of removing waterproofing putty. For example, tile walls may require more tools and time to remove putty.

3.Worker fees: Different renovation companies or workers may charge differently, which can also have an impact on the cost of removing waterproofing putty.

In addition, it is important to take into account the follow-up work that may need to be done after removing the waterproofing putty, such as reapplying the waterproofing treatment or repairing the wall. The cost of these tasks also needs to be taken into account.

In conclusion, the need to remove waterproofing putty from the original wall depends on your specific needs and budget. If you need to re-waterproofing or change the wall covering, then it is necessary to remove the waterproofing putty from the original wall. In terms of cost, according to the local market price, it is about 10-30 yuan per square meter, and the specific cost will be affected by factors such as wall area, wall materials and labor costs.

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If you are sure that there is waterproof putty on the original wall, you can see if the wall is complete, if it is very complete and flat, then you don't need to scrape off the putty, if it is not flat, you need to scrape it again.

I think it is still necessary to decide according to the quality of the waterproof putty of the original wall of the house, if there is no peeling and peeling, and there is no serious pollution or yellowing, this situation does not need to be eradicated, because the wall itself is very good, very complete, there is no need for this.

It turns out that there is waterproof putty on the wall, and there is no need to remove it when decorating again, and the wall paint can be refreshed directly on it.

If there is no decoration recently, not only shovel to the clear water wall, but also level it with cement mortar, plaster, water-resistant putty, and whitewash. Only in this way can we maintain quality. Destroy the paint film of the original wall, check whether the putty used on the original wall is waterproof putty, and use a shovel to shovel a corner on the back.

If it is easy to shovel, then the original residents use non-waterproof putty when decorating, so the original wall skin can only be shoveled. If it's hard to shovel, don't shovel it. See if the wall skin is empty and cracked.

If this phenomenon exists, the original wall skin must be removed. The walls of the new house were splashed with water, and the putty could be wiped off by hand and shoveled off. The biggest renovation project is the interior monolithic wall.

First of all, it is recommended to use waterproof putty for wall decoration. If you apply ordinary putty to the wall, a series of quality problems will soon appear.

Ordinary putty is a little cheaper and not waterproof. The adhesion between putty and the wall is not ideal. Finally, the putty on the wall can only be shoveled off, and the indoor wall can be redecorated and the waterproof putty can be scraped.

There are many types of putty powder in the building materials market, and the quality is different. Cheap putty powder is not waterproof, the fineness is extremely low, there is basically no adhesion, and if you accidentally touch the wall, it will be stained with white powder. If water splashes on the wall, the putty will fall off and flow down the water, revealing the original color of the wall.

In this case, you can only shovel off the putty on the wall, clean the base layer, and scrape the water-resistant putty.

Scrape off the wall putty and check the wall for cracks. If there are small cracks, brush the wall fixing glue. The solid wall adhesive has good permeability, effectively fills the cracks of the wall, and has good adhesion to the subsequent scraping putty.

There are many kinds of brand putty in the building materials market, and the shops and merchants are shopping nearby, which is low, green and environmentally friendly, has passed the system certification, after-sales service is in place, and free door-to-door delivery. It is recommended to use 821 waterproof putty for wall decoration, which is cured well and insoluble in water. Usually the water-resistant putty is scraped three times, and the putty is dried for the first time and then scraped again.

After three passes, the putty is completely dry and sanded, and the wall paint can be painted.

Even in humid environments, the use of water-resistant putty on the wall will not be affected. If the wall is dirty, you can scrub it clean with clean water, and the decorative effect of waterproof putty is better. Where does the water come from?

The putty is isolated from the air after being coated with latex paint. Even if the environment is humid, the water vapor from the outside will not hurt. There will be no water in the wall, but the root of the wall will absorb water, and the top and back of the wall will seep water, causing water to accumulate in the wall; To resist the water in it:

So the point is to prevent it from coming out of the inside. There must be yin and yang: high strength, difficult grinding, workers will complain, sandpaper is used more; When the viscosity is large, it is not easy to stir, when the viscosity is large, it is not easy to scrape, and it is not easy to repair again; After adding cement water-retaining agent, the service life becomes longer and becomes alkaline.

The latex paint will follow the water**, the base coating should be a little better + the surface coating should be alkali-resistant, otherwise the bite will turn yellow and die for you. If the exterior wall is waterproof, and the bedroom and living room are next door, will there be water? The focus of the wallpaper base layer is on leveling, which is obviously wasted with waterproof putty.

Therefore, it is necessary to treat it differently in light of the actual situation: it is best to rely on the bathroom or a wall that may seep water, or a wall on the ground floor or a damp and easily absorbent wall.

Many friends are basically shoveling the wall skin in the first step of home decoration.

If you don't shovel it, one of the main reasons is that we scrape the putty on the wall again, and the putty shrinks to produce a tensile force, which will lead to the separation of the original putty and the plastering layer.

Second, because we have not eradicated the original putty, there may be some pollution in these putty. The most common is that there is a local to yellowing situation, and at this time, the latex paint is repainted on it, and finally the pollution of the bottom layer is visible through the latex paint. As a result, our latex paint has a color difference, which is very ugly.

The third main reason is that the original putty layer generally has quality problems. The quality problems mentioned here are mainly manifested in the following points: the first point is that the wall has been powdered and powdered.

The second point is that there is a local peeling and peeling of the wall. The third problem is the presence of cracks in the wall. These problems determine that we cannot decorate the original surface layer, and the original putty must be removed.

If the wall needs to be repainted, the water-resistant putty must be shoveled, otherwise the paint repainted on the wall will be cracked and peeled off in the later stage because the adhesion to the wall is not strong.

Decoration is the original wall putty needs to be shoveled off, if not shoveled, for a long time, these water-resistant putty will automatically fall, which will definitely affect the future decoration, in addition to not shoveling off the new brush putty does not stick, the paint is also unstable.

Of course, it is necessary to do waterproofing, because if you don't do waterproofing, it will affect other people's homes, or it will be affected by other users. Waterproofing is a necessary step, and it is very important.

Does the wall need to be waterproofed before scraping putty? Why? I think it still needs to be waterproof, because it can be better protected.

There is no need to do waterproofing, because the wall will rarely come into contact with water, and there will be no water leakage, so there is no need to do waterproofing.

Of course, it is necessary, if you do not do waterproofing, the wall is damp, and the putty will quickly fall off by moisture.

A variety of materials are used for wall decoration, including base materials, polymer trowel mortar, wall fixing glue, gypsum powder, water-resistant putty powder, various brands of wall odorless paint, etc. There are many decoration procedures, and there is no sprinkling of water before the wall is scraped putty. The questioner asks the question:

Do walls need to be waterproofed before scraping putty? What to look out for?

<> before scraping putty on the decoration wall, there is no process of sprinkling. If it is done according to the specification, first, the concrete or plastering base of the new building should be coated with an alkali-resistant sealing primer before leveling or directly coating the paint with putty. (However, in some projects, this process is omitted by the designer).

Scraping putty mainly focuses on skills and experience, and the technical content is not high, that is to say, as long as you have the strength to support the body to work, even if it is a "three-legged cat work" can also play the "master's demeanor"! All you need is strength, skill and experience! It will seriously affect the particle attachment to the wall, because the moisture content of the putty itself is high, and the moisture content of the wall will seriously make the moisture content of the putty too high and fall off or the solidification time is too long and crack, so the putty has certain requirements for the humidity of the wall

The process of removing the wallpaper without sprinkling water is also very difficult. In addition to these three situations where the wall needs to be sprinkled before scraping putty, Hua Ge really can't think of what other state of the wall needs to be sprinkled? Because the water is sprinkled on the wall, it is originally a disadvantage to the putty base.

The renovation of the old house is different, there are putty directly on it, and there are also those who directly brush the previous wall with latex paint, but it is still best to shovel off the putty made before, and then re-construct like a new house, the effect will be better. It can easily handle a wide range of wall surfaces in different conditions. The wall can be directly leveled with stucco plaster, and then scrape putty, the poor quality of the wall can be brushed over the wall, because the wall is also water-based, so there is no need to sprinkle the wall.

Ordinary interior walls do not need to be waterproofed. Because our ordinary interior wall surface generally does not produce water. That is to say, on the wall of our living room, or the wall of the study, or the wall of the bedroom, there will be no water spraying on the wall.

Because we do waterproofing the surface of the wall, it is mainly to prevent water from penetrating through the wall to the bottom of the wall. And for these areas there is no water source, so there is no need to do waterproofing.

There is no need to do this step, because there will be no large area of water on the wall, and it should be noted that the surface must be smooth and flat before the putty can be scraped.

Before doing waterproofing, pay attention to whether it is in the south or the north, if in the south, the bedroom and living room also need to be waterproof, because in the south of the south is very humid, easy to cause damage and mildew of the wall, and in the north in addition to the bathroom and bathroom, there is no need to do waterproofing in other places, the weather in the north is drier than in the south, and after doing the waterproofing, pay attention to the construction process after the waterproofing, do not scratch or damage the waterproof wall, resulting in a great reduction in the waterproof effect.

Do you have to shovel off the water-resistant putty that has been renovated in the house? Self-offered: Renovated house, in case of redecoration, shovel off the water-resistant putty on the wallIf you don't shovel it out, it is very easy to have general product quality problems.

Do you have to shovel off the water-resistant putty that has been renovated in the house? Self-providing: After the renovation of the house, in the case of redecoration, the water-resistant putty on the wall is shoveled off, and it is very easy to have general product quality problems if it is not shoveled off.

Water-resistant putty is a parent raw material of concrete, which has large gelatinity, strong viscosity, high stiffness and high strength, and is laborious during engineering construction and sandpaper for grinding and polishing. If the original value for money and the construction of the project are right, you are really not good at shoveling, and the strength of the two tigers may not be pleased. A day beforehand, use a shower to wet the walls so that the water doesn't have to flow too much.

After 24 hours, use a wall plaster knife to shovel from the bottom to the top. If a piece falls off in pieces, it means that the putty powder has lost its waterproofness and should be shoveled off as much as possible.

Otherwise, it can be ignored. Decoration has the same character as people: you can't always find the same double wall, even if it's twin brothers.

Therefore, it is necessary to analyze the criteria on the spot, and it is very likely that this wall will be shoveled, while the other wall will be calm. In many new engineering renovation projects, there are thousands of similar conditions, and the old putty powder on the wall is not necessarily not very good, and even stronger than the new one. You can't find a similar phenomenon on the Internet, so you have to try it yourself.

Proposal: For water-resistant putty, you can shovel it, you can't shovel it, and let it go. The second decoration of the house, indicating that the occupancy time is a long time, the decoration reaches a certain period, with the time of a variety of building decoration materials, slowly aging conditions, as well as a series of commonly used product quality problems, endangering the daily settlement living environment, like this situation, many people have the idea of secondary decorationThe second renovation is still quite cumbersome, not only to remove all the building decoration materials, but also in the case of demolition, there are many areas that should be paid attention to.