Cracked ceiling soon after moving in? What are the places that were overlooked during the renovation

Cracked ceiling soon after moving in? What are the places that were overlooked during the renovation and the money was spent in vain?

Decorating the ceiling is supposed to add color to the new home and make the room more beautiful。However, there are also cracks or collapses of the ceiling after the completion of the ceiling, which is the most congesting, and I am afraid of collapsing every day. When decorating, there is a problem with the worker's technique, which will lead to the keel is not firm or uneven, and the surface will be uneven or deformed when the board is put on the board in the later stage, and it will collapse after a long time.

Also pay attention to the distance between the plasterboard when screwing it. Sometimes there is definitely no problem with the keel and gypsum made by the carpenter, but there is a problem with the construction of our later discharge. After the board is installed, if we paint it, if this part is not done well, it will cause cracks in the ceiling.

In addition to the good putty and paint must be selected in the construction, there is also the method of construction, which also affects the effect of the ceiling.

If the gap is not treated well, it is easy to cause cracking. The primary level of the industry will also affect the effect of gypsum board installation, and it is important to minimize the gaps when installing. If it is a corner or a special place, it is best to use a whole piece of drywall.

If it is a place with beams, it is necessary to use an excessive amount of the beam to wrap the beam with gypsum board, so that there will be no gaps. The material of the board can also cause cracking, before the board is hoisted.

You will definitely go to the market to understand the ** of the board, and you will find that the cheap one is more than ten yuan a piece, and if it is a brand, it will be forty or fifty one. Therefore, the difference will affect the quality of the plate. A bad board often has more internal impurities and is more fragile, which will also cause cracking in the later stage.

If the ceiling cracks soon, then our money must have been spent in vain, and the crack will definitely get bigger and bigger in the future.

The waterproofing of the bathroom must be done well, otherwise it will be very troublesome.

That is, we must pay attention to the skeleton of the ceiling and their material.

When decorating the ceiling, you must pay attention to the skeleton of the ceiling.

I'm engaged in interior decoration, your situation is a material problem, the general situation is caused by thermal expansion and contraction, on the other hand, it is a painter's problem, if you choose a light steel keel, maybe there will not be such a situation.

It should be a problem with the material of the ceiling, if the material is not good, it is easy to crack.

Decoration can be ignored in mind, but waterproof must be installed.

Be sure to leave the ** number when decorating.

It's just that you have to do a good job of waterproofing or something, otherwise your head will be big in the future.

Reasons for cracking of home decoration ceilings: 1. Material selection. The cracking of the ceiling has a lot to do with the material, the main ceiling materials are light steel bone and wooden keel, the light steel bone is of good quality and has high hardness.

Wooden keels are more convenient for modeling, but it is important to note that humid environments are not recommended. 2. Gypsum board modeling. Before the construction of the ceiling, gypsum board will be used to cut the yin and yang corners of the wall.

However, it should be noted that if you want to do gypsum board splicing, you need to leave a gap, because gypsum board and ceramic tiles will have the same thermal expansion and cold contraction reaction. If it is too tight, cracking will occur in the thermal expansion reaction. 3. Carpentry ceiling stage, this stage is very important, and we must do a good job in the order.

The spotlight perforation in the woodworking ceiling stage must be done before the oilman stage, if the spotlight perforation in the same position is carried out after the oilman construction, it is easy to cause cracks, and it will crack after a long time.

It has a lot to do with the material, there is the modeling of gypsum board, the woodworking ceiling stage; If the material is not selected well, there will be cracks, if the gypsum board splicing needs to leave gaps, gypsum board and ceramic tiles will appear thermal expansion and cold contraction reaction, if it is too tight, the thermal expansion reaction will crack.

Cracks in the ceiling paint If only linear, polygonal, or irregular cracks form on the ceiling paint film, the problem is not very serious. This can be caused by a brush that is too thick or not reapplied at one time, the substrate is too loose or rough, and the primer and topcoat do not match.

Now there are many people's houses after the renovation or after living for a period of time, there will be cracks in the walls or ceilings, now let's take a look at what causes them to crack and how to deal with these cracking problems!

1. What causes the cracking of the ceiling?

1. The temperature is low during construction, and the putty layer is not completely dry before applying latex paint, and after a dry winter, the putty layer shrinks and cracks.

2. During construction, there is no construction in accordance with the process standards, kraft paper and grid tape are not pasted, and cracks will appear when the gaps are repaired with putty powder.

3. The gypsum board ceiling is too small to leave the joints, or the gypsum powder is not filled with gaps.

2. How to deal with cracking?

Almost every family will have a little crack after living in it for a year or two, in fact, this is a very normal phenomenon, and the material will have different degrees of thermal expansion and contraction. Dealing with cracking is also very simple.

1. For fine cracks, you can use a shovel blade to expand the cracks, refill the putty and dry it to polish it thoroughly, and brush the latex paint.

2. For serious coarse cracks, it is often due to the fact that the bottom layer is not treated according to the technological process, and it is necessary to use a shovel blade to remove the putty in the range of 3-5 cm around the cracks, leak out of the bottom layer, slightly expand the cracks to 5 mm V-shaped mouth, use gypsum powder to repair the base layer, use kraft paper and grid tape to paste on the joints and scrape the putty, and polish and repair the latex paint after drying.

The use of light steel keel ceilings with small expansion and contraction coefficient can reduce the problem of cracks to a certain extent. Cracks often appear in the corners of the ceiling, and the corner part of the ceiling can be reduced by using the "figure 7" gypsum board process.

Abnormal, unless the quality of the new house is generally not cracked.

1. Gypsum board used in the ceiling.

Quality problems, in the ceiling should choose big brand products, ceiling selection of the overall plate to avoid corner cracking and other problems.

2. Problems such as the construction environment, indoor temperature and humidity during construction will affect the construction quality of the gypsum line. Moisture can also affect the strength. 3. Problems with construction methods, incorrect operation methods during construction, such as: scraping putty.

Brush latex paint. And so on is incorrect. It will also affect the quality of construction in the later stage.

Of course it's not normal, pay attention to whether the decoration materials are not good, as well as the skills of the decorator.

The ceiling of the newly renovated house is cracked, of course, it is not normal. You're definitely going to have to go to the renovation company theory.

Ceiling cracking is scraping porcelain without dealing with the joints, of course, some places can not be completely guaranteed not to crack, can only minimize the possibility of cracking!

Of course it's not normal! Phenomena such as cracking and sinking of the ceiling should be repaired as soon as possible, and it will crack just after the decoration. If it gets worse and worse, it will be troublesome to sink and fall off.

Wall paint cracking is a lot of new homes for owners, and after a period of renovation or even a very short period of time, you will find more or less cracking on the river surface. The cracking of the paint film on the surface of the wall will seriously affect the visual effect of the decoration of the wall. It can even cause the paint film to crack, which will affect the life of the wall.

If only the crack of the surface. Just use fine sandpaper to sand off the cracks, and choose the same color of the wall area to repaint.

Wall Crack Repair Steps:

1. Use a putty knife to scrape out the width of the gap, and scrape it into a figure-eight shape, with the outer width and the inner narrow.

2. Use gypsum block dry powder to plug the void, and the filling depth is not less than 30-40mm, which does not need to be filled with the wall, which is lower than the wall.

3. Brush 108 glue in the gap and paste the glass cloth or cowhide note.

4. Scrape 821 putty 2-3 times and smooth it with the original wall, and polish it with sandpaper after drying.

5. Adjust the wall paint, brush the sample first after the paint is adjusted, compare it with the wall color after drying, the color is close, the color difference is not large, and then paint the wall.

Possible causes of wall cracking:

1. There are cracks in the insulation layer of the original house, which leads to cracking of the wall after decoration;

2. Improper repair and painting after the wall is slotted, resulting in cracks in the wall shrinkage;

3. The ratio of cement is inaccurate when plastering, and it is easy to crack if the ratio is high;

4. The situation is that the ratio of wall putty is improper or uneven scraping.

5. The ratio of latex paint and water is not suitable, and the above non-standard operations will lead to cracking of the wall.

There are many reasons for the cracking of suspended ceilings, such as carpentry

1. Whether the ceiling keel is a wooden keel or a light steel keel, the wooden keel is more prone to deformation, or the stress is uneven during construction. Cracking is more likely to occur in the later stages.

2. Process problems: whether the whole corner of the gypsum board is used for sealing the gypsum board, rather than splicing (the cost has a certain relationship).

3. Painter: whether there is a strengthened anti-crack treatment to prevent it, and whether there is a caulking paper tape to strengthen the anti-cracking.

4. In the later stage of ventilation, large windows should not be opened for large-intensity ventilation, and the soft breeze effect of small windows is better, which can better avoid such problems.

Suggestion: Do a good job of carpentry foundation, smooth base and uniform stress, woodworking board priming, double-layer gypsum board cover (the cost will increase a lot), which can effectively prevent such problems.

Repair: The cracking of the ceiling coating is more difficult to deal with after it is done, and it will leave more obvious repair marks. It can be handled in the following way:

If it is only a slight crack, cut the V-shaped gap at the crack and clean it, and then use gypsum putty to fill the compact, sand, and paint. If the crack is large and obvious, it is necessary to shovel off about 10 cm on both sides of the crack until the gypsum board is exposed and cleaned, re-mend the joint, apply caulking tape, scrape putty, and paint.

1. Because the wall is thin, it is leveled and patched, and finally the joint is cracked.

Cause] This kind of cracking is a typical "junction of different walls" cracking. Different wall materials have different thermal expansion and contraction and water absorption expansion, so internal stress will be generated, and it is particularly easy to crack.

Solution] When the foundation is decorated, do anti-crack treatment.

Anti-crack treatment is to use anti-crack materials such as kraft paper and mesh cloth to strengthen with other materials to prevent cracking.

If it has already been renovated, then it is necessary to remove the cracked part and do it again. If you can't stand it and don't want to redecorate it as a whole, you need to consider local blocking (such as hanging paintings, wall stickers).

2. Patch with wooden boards, and finally crack at the junction between the wooden board and the cement wall.

Reason] There is one more cracking factor than the first one: "water absorption and deformation of the board". Different from cement walls, the water absorption deformation rate of wood materials is very large, and ordinary walls are difficult to adhere to putty or latex paint, and will crack and fall after deformation.

Solution] Try to avoid using wooden boards for this kind of repair, if you can't solve it with basic use, it is inevitable to repair it frequently. Moreover, if the wood is long, there will be problems such as mold and breakage.

3. Small cracks, not much, but exist.

Reason] This is mainly related to the outermost material, if it is the internal wall cracking, it is generally more serious.

Solution] Redo the surface decoration. Painting, wallpaper, diatom mud, you can do it.

4. The joint of the wooden board of the ceiling is opened.

Cause] Same as questions 1 and 2.

Solution] Same as questions 1 and 2.

5. Cracking occurs at the junction of the gypsum line and the ceiling plank.

Reason] A new material, gypsum line, has appeared here, but the reason is still mentioned in 1st and 2nd.

Solution] When pasting the gypsum line, you can consider reserving a larger expansion joint, but this will affect the appearance. Whether you want to endure cracking and redo, or whether you want to endure unsightly, you can choose.

6. There are large and long irregular cracks.

Reason] If it is a regular crack, it must be related to the wall. If it is irregular, it has something to do with the leveling you said, and it should be that the material is not strong enough, resulting in hollowing. You can knock it to determine whether it is hollow, or whether it will crack when you knock.

Solution] If the leveling material is not strong and causes the drum to be hollow, then it needs to be shoveled and redone. Although the amount of work will be relatively large, it can be solved once and for all. If we are not willing to make a big move, then we can only patch up and cover up on the surface, and treat the symptoms rather than the root cause, but we can solve the urgent needs of the moment.

Ceiling cracking, should refer to gypsum board cracking. In this case, there is no need to remove it, directly remove the latex paint and putty around the crack, and then apply a bandage and smear putty, so that the cracked gypsum board is connected together. Then re-batch putty, sanding, leveling, and finally brush latex paint.

Hope it helps!

It can only be said that the quality of the decoration construction of the landlord is very poor, and it is estimated that he has found the wrong decoration company.

Reasons for ceiling cracking: 1. The flatness of the top and wall is not enough, when we fix the keel upward, it is more energetic, so let the oiler first carry out gypsum leveling on the wall on the spot, first find out the flatness of the wall and the top surface, and then hit the keel after leveling, which can effectively reduce the cracking of the ceiling; 2.The keel used is a wooden keel, which will be deformed with the change of temperature and humidity, and once the wooden keel is deformed, the thin gypsum board outside will also crack; 3.

Cracking in the corner, or at the seam, so the corner must be made with the whole board, do not have a seam in the middle, leave the seam to the two ends, the seam should also be done deep V-shaped treatment, fill the caulk, scrape putty outside, and then paste the mesh cloth and kraft paper, scrape putty and paint, which can effectively reduce cracking.