The skin of the roof is falling off, what is the cause of it?

When the developer delivers the house, the wall is smoothed with plain ash, and the workers must shovel off the plain ash of the base layer and re-brush the primer when painting the wall. If the worker does not clean the base layer in the decoration, it will cause the latex paint to be brushed.

After some time, the wall surface peeled and cracked. Scraping putty.

There is more dust on the front wall or there are more quality problems on the wall that have not been treated, and these problems will affect the putty powder.

The adhesion with the wall, the second will be the wall base layer will fall off, the putty stucco will also fall off, and the mason will finish laying the floor tiles.

There are beautiful joints between all the floor tiles, and there is too much moisture in the ground, which will always produce some moisture. Slowly, the moisture is converted into alkali return, and the nearest and weakest place is found to break through.

The external wall of the building falls off and the quality assurance period of the project and the use period outside the guarantee period, which has a different quality and safety responsibility subject. Therefore,The period of occurrence of the risk accident becomes the key factor in defining the corresponding responsible entity. Exterior wall seepage:

If the moldy and peeling wall is on the inside of the wall outside after decoration, it must be water seepage from the outside. In the case of the rupture of the waterproof layer of the exterior wall and the seepage of water in the middle of the wall, styrofoam can be used in the decoration of new houses in Guangzhou.

Reseal the window frame and around the air conditioning holes.

<> for the old houses on the top floor, the original white and stucco layers have been removed, and the roof has also been sanded and painted with wall solidification.

construction, but there are still large white cracks and peeling, so in this case the shedding has a lot to do with the uneven roof of the top floor. To make a big white on the roof, you must use a solid wall painting, which will increase the grip and firmness of the surface, and make the plaster layer of the plaster layer made in the later stage more firm. Whether the putty layer of the exterior wall is depowdered.

If there is, it can be removed or used with an interface agent.

Roll once and remember to roll through.

After determining the cause of water seepage and repairing, it is necessary to repair the wall, and it is recommended that the best way is to shovel off the wall skin and re-paint, and these processes are best to be completed by professional workers.

It is because the material of the roof is not good, and it is often wet in the rain, so it will cause the wall skin to fall off.

First, it may be caused by the damp environment in the home, and second, it may be that when the wall is painted with latex paint, the windows are immediately opened for ventilation, which will cause the wall skin to fall off and crack.

This was because the manufacturing was not good at the time. As a result, the skin of the roof fell off. It is also possible that the wall skin has been eroded when it rains. This is also due to the failure to do a good job of waterproofing.

It is very likely that the home is very damp, so it will cause the skin of the roof to fall off, and you can open the window for more ventilation.

It is very likely that the materials used in the decoration are not particularly good, and this will be the case in the wet season.

It may be because many years have passed, and the quality of the wall skin is not very good, and we usually do not protect the wall skin well, so these situations will occur.

If it falls off in a small area, you only need to scrape the putty again at the place where it falls off. If it falls off in a large area, it is necessary to remove the wall skin around the falling off place first, and then re-apply the interface agent, scrape putty, polish the wall, brush latex paint and other processes, so that there will be no color difference.

Secondly, for the problem of sand cement ratio, in order to save money, increase the amount of sand and reduce the amount of cement, resulting in a very large probability of anti-sand. There is too much mud in the sand, which is also one of the reasons for the backsand. The problem of plastering surface is not big, the treatment is also very simple, shovel and repaint, if you want to save effort, wash it with water, brush it with glue or brush a layer of cement slurry.

For the problem of the roof wall peeling off due to the dampness of the wall, the wall should be treated with moisture in time. First, clean the peeling parts on the surface, clean all the white parts, and fix the wall after the wall is dry, it is recommended to use high-viscosity white powder to paint the wall.

Precautions for scraping putty.

1. The putty scraped is not a requirement for light, but for leveling.

2. It is necessary to pay attention to the putty on the wall, which is generally required to be scraped three times, but each time the putty is scraped, it is required to be painted again after it is dry.

3. When scraping putty, you must avoid cold wind blowing directly, so that although it seems that the wall can be blown dry, but in fact, the moisture of the wall is locked in the wall.

4. When the base layer is highly absorbent, it should be sealed with a primer before scraping and applying the putty, so as to avoid the rubber in the putty being too absorbed by the base layer and affecting the adhesion of the putty.

The above content refers to People's Daily Online-The thickness of wall leveling and scraping putty needs to be grasped.

Roof peeling treatment method:

1. Redo the walls. If the peeling of the wall is severe, the cement layer of the wall should be removed first, the dust should be cleaned, the wall should be kept clean and dry, and then the wall should be repainted.

2. Remove the spalling wall. During construction, use a spatula to remove the swelling or break off the wall, and then use a small roller to soak the interface agent and apply it evenly to the wall.

3. Make the first layer at the bottom. Add some white glue to the bottom of the water, then add powdered putty, and then apply it to the wall with a tool to make sure the wall is flat, and finally apply emulsion paint to repair the wall.

How to prevent the wall from falling off:

1. Close the windows in the morning and evening to reduce humidity.

Humid air is very bad for the wall, so in daily life to prevent the humid air from entering the room, especially on a southerly day, it is necessary to close the doors and windows of the home, so as to avoid damp mold, bulging, falling off and other phenomena on the wall.

2. Check in time to remove water vapor from the wall.

When the weather is humid, check the humidity of the wall at home at any time, if the surface is already wet, use a dry cloth, air conditioner or dehumidifier to absorb the moisture in the wall, so that the wall will not mold and peel.

What could be the cause of the peeling off of the wall?

1: The base layer of the wall is loose and pulverized.

2: There are floating ash, oil stains, film removers, etc. on the surface of the base layer.

3: The water content of the base layer is too high.

4: The construction team works in a high humidity environment.

5: The coating has frozen before it dries completely.

6: There are cracks in the insulation layer of the original room, resulting in cracks on the wall during decoration.

7: Improper repair and painting of the wall after slotting, resulting in shrinkage cracks in the wall.

8: When plastering, the cement ratio is not suitable, and the proportion is too high to crack.

9: The proportion of wall putty is not appropriate, or it is scraped unevenly.

10: The ratio of latex paint to water is not appropriate, resulting in cracks on the wall.

Wall peeling treatment method:

1. Directly roll the topcoat to cover the part.

In the event of simple discoloration, it is generally recommended to use a roller brush to cover a new round of primer and similar topcoats. However, before construction, it is necessary to judge the quality of the wall putty layer: select the part of the wall with the most serious discoloration, soak it in water and then use a shovel to smooth it.

If there is no chalking or peeling (indicating that the original putty layer is of good quality), you can use fine sandpaper to sand it flat, and then refresh the primer and topcoat.

Causes of wall spalling: How to deal with wall spalling.

2. Remove the flaking part and reapply the putty.

If the white or bare wall is partially bulging or slightly cracked and peeling, the problem can be eliminated and the edges of the eliminated part can be smoothed out, then putty is scraped, primer is applied, and then paint is applied, but it may be slightly different from the original wall.

3. Demolish the old wall, construct and update it as a whole.

Comprehensive construction is the same as redecorating. The quantity is: It is suitable for walls with many cracks, spalling and dusting.

First of all, the wall should be completely cleared to the cement layer. For some houses that have not been renovated for a long time (such as before the 80s of the 20th century), it is more necessary to remove the surface of the brick wall, and then carry out comprehensive construction and renovation of the wall: wall leveling - base curing - brush interface agent - brush waterproof putty three times - wall polishing - brush primer - brush twice effective topcoat.

4. Grassroots professional reinforcement.

In case of severe local spalling, it is necessary to consider whether the foundation of the wall has not yet been completed. The original wall should be moved to the base layer of the wall, re-brushed with interface agent or primer, and then polished and smoothed after plastering plaster leveling three times, pasting mesh cloth (reinforcement and anti-cracking), and scraping the wall lining. At this point, the quality of the entire base will be better.

If the wall skin falls off, it may be due to the average quality of the material, or the foundation is constantly sinking, or it may be exposed to strong direct sunlight for a long time, or it may be affected by moisture during the rainy season.

It may be caused by the waterproof layer falling off, it may be caused by the unqualified cement layer, it may be caused by improper treatment, it may be caused by the poor quality of raw materials, or it may be caused by too thick plastering.

It may be caused by dampness at home, it may be caused by poor quality, it may be caused by poor production process, it may also be caused by poor quality of the wall, or it may be caused by pressure.

1. First remove the damaged and damp wall to the cement layer, clean up the dirt and dust on the construction surface, and keep it clean and dry.

2. Take out the wall repair set purchased from the online **, and communicate with the seller to purchase the coating suitable for your own wall.

3. Brush the cement surface 2 3 times with a separator, with an interval of about 3 hours between each pass, as shown in the figure below.

4. After drying the next day, use water-resistant putty paste to scrape the construction place, and after 4 6 hours of drying, polish the wall with sandpaper.

5. After the putty paste dries the next day, clean the surface dust and paint latex paint 2 3 times, with an interval of about 3 hours between each time.

If the wall is shelled, it is recommended to shovel it all, but a similar situation may occur after a simple repair. If you plan to shovel it off, the furniture underneath must be well shaded, and it is best to empty it, as there will be a lot of dust. It is still recommended to do wall paint on the top of the wall, and the corners of the wallpaper will still be easy to get up after a long time.

1. Remove the peeling wall skin first, and then scrape the putty again, and the areas with hollow drums and slight cracks also need to be peeled off and shoveled together, and the edges should be smoothed and scraped with putty, and then the primer should be painted.

2. The serious phenomenon of peeling may be that the base of the wall is not done, the wall skin peeling off the wall is removed to the wall base, repainted with a solid primer, whitewashed plaster leveling, pasting the mesh cloth, scraping the wall lining three times and then grinding and smoothing, and reinforcing the entire base layer.

3. If it is an ordinary fading problem, the way of rolling brush is used, and the roller brush topcoat will cover the part locally, and the primer and similar topcoat will be re-covered.

Repair methods for peeling off ceiling and wall skin: shovel off latex paint, sandpaper sanding, brush cleaning, and repainting.

1. Shovel off the latex paint

When you find that the ceiling is peeling, then you can observe that it is generally the layer of latex paint that falls off, so you can use a small shovel to gently shovel off the peeling layer of latex paint.

2. Sandpaper sanding

Don't rush to repaint after removing that layer of latex paint, as it will quickly repaint. Gently sand the area where the skin has been peeled off with sandpaper, remembering to sand it evenly.

3. Brush cleaning

After sanding, do not wipe with a damp rag, but choose a small brush to sweep the sanded area several times so that it is clean and free of dust and latex paint.

4. Repaint

At this time, you can repaint the latex paint, after brushing one layer, let it dry naturally, and then apply it evenly twice, and there will be absolutely no peeling.

The reason for the peeling of the ceiling wall skin

1. Caused by low temperature

When the ceiling is painted, the surrounding temperature is relatively low, resulting in the paint film can not be completely dried, but the surface is dry, the temperature rises during subsequent use, and the water vapor formed by the evaporation of internal water will support the paint film, forming a relatively large hollow drum, which will break through after a long time and cause the skin to fall off, especially when the air is relatively humid, it is easier to fall off after absorbing water and increasing its own weight.

2. Caused by loose grassroots

When the ceiling is under construction, the base layer is not well handled, and the dust, oil and other stains are not cleaned up, so the direct painting can not be well attached to the base layer, and once the weather changes greatly, there will be the problem of falling off.

The method of peeling off the top of the wall is as follows:

1. Shovel off the peeling wall, leak out the cement wall, polish the wall, and then repaint the wall.

2. Clean up the damaged wall, and then soak the interface agent with a small roller and evenly coat it on the wall.

3. Add some white glue to the water, then add powdered putty, then apply it to the wall with a tool and make sure the wall is flat, and finally apply emulsion.

load-bearing walls

To put it simply, floor slabs are supported on structural components such as load-bearing walls and beams. In our house, the weight of the floor slab, the weight of the furniture, etc., should be transmitted to the load-bearing wall and structural beam through the floor slab, and then to the lower load-bearing wall or structural column through the load-bearing wall and beam, and then to the foundation. The structural skeleton that forms the whole house, just like the skeleton of the human body, is an important part of determining the safety of the whole house.

Everyone has some knowledge of mechanics, at least in middle school to learn physics, the load-bearing wall for the floor, is the fulcrum, the structural design is called the bearing, for a floor slab next to the stove, the force in the middle of the slab and the support is not the same, the steel bar inside, the top and bottom are reversed, the load-bearing wall is removed, the floor has no bearing, the consequences are terrible. Once a crack in the floor slab appears, it will continue to develop, and the crack will grow larger and larger until it breaks. The actual stress situation will be more complicated.