Repair of plasterboard ceiling

16-06-2018

Useful

During operation, all things or materials begin to lose their original appearance. And if you made a repair a few years ago, then over time everything needs rework. And repairs should start with a plasterboard ceiling. Cracks and holes may appear on it, it may sag, or you may observe the effects of flooding. In order not to redo the entire ceiling, you can repair it. And so that you do not spend money on the masters, we will tell you how to make the repair of the ceiling of drywall with your own hands.

What disables the ceiling

Have you cracked the ceiling? Are there spots on it? He sagged and holes appeared? Why is this happening? Here are some reasons:

during installation of the frame, plasterboard lining and finishing the work technology was violated;
high humidity and wrong choice of material;
sharp temperature fluctuations during installation;
flooding neighbors above, if you live in an apartment;
building shrinkage;
poorly sealed joints between sheets;
перед шпаклевкой не наносилась primer;
constant vibration caused by the movement of machinery;
used weak dowels.

All this leads to the fact that your ceiling is in need of repair.

Main problems

All the factors listed above contribute to your ceiling:

Starts to sag.
It forms small and large cracks.
There are holes in drywall.
It is stained.

If we talk about sagging, the formation of "waves" occurs for three reasons. First, a rare step crates. If the sheet is attached only at the edges, it bends under its own weight, and the plaster that is on it only strengthens the process. Secondly, it sags after flooding, as drywall picks up moisture and becomes soft and heavy. Thirdly, these are the consequences of improper fasteners. When the screws are screwed into the sheet deep, the cardboard breaks. And since the caps of the screws are small, the sheet in this place can tear itself away from the profile.

Small cracks are formed with the wrong choice of material for plaster, as well as when the installation and putty was done at a low temperature. The formation of large cracks mainly occurs at the place of the joints of the sheet to the sheet. This happens due to the fact that the reinforcement tape was not glued at the joints, or the fixing with hardware was done in increments of more than 30 cm. Another reason is that the joint is on the frame. And if the frame is made of wood, then under the influence of moisture the tree bends and twists, which leads to cracks.

Holes are the result of careless handling. These can be unsuccessful attempts to nail something to the ceiling, or damage by dimensional objects when moving them (a closet, a refrigerator, etc.). There were cases when holes appeared after opening a bottle of champagne, the cork of which did its job.

And the spots are the result of being flooded again, or a mold or fungus has appeared.

The source of these problems is the human factor. If you want to save money, are not attentive, careless and do not comply with the technology, you will not avoid such problems. But what's done is done. Now the main task is to eliminate the defects that have arisen, and it is not at all difficult.

Struggling with sagging

To eliminate this disadvantage, you can use several ways:

It is necessary to dismantle the ceiling and strengthen the frame. To do this, all sheets of drywall need to be unscrewed from the base, and the frame made with mesh 50? 40 cm. Then the sheet to the frame will be attached 5 times in width and length. Due to this, the ceiling will be securely fixed and even if you are flooded again, it will not sag.
Replace one or more fragments. It happens that the deformation succumbed to only one sheet. In this case, dismantle the entire ceiling does not make sense. It is enough to remove the damaged fragment and install a new one in its place. In this case, too, will have to strengthen the frame.
Align the mortar with plaster. This is the easiest method. Disassemble does not need anything. It is enough just to apply the solution to the hollows of the ceiling until everything is level. To fix the gypsum mortar on the ceiling, its surface is pasted over with reinforcing mesh and plastered.
If the installation technology of the frame was broken, it is made of untreated wood or metal profile, you must perform a complete disassembly.

Sagging cases are the hardest to work with, and patience and effort will be needed to complete them. But after doing such work, you can be sure that this will not happen again in the future.

Crack elimination

Often on the ceiling you can see a web of small cracks. Agree, they do not give attractiveness to your ceiling. Moreover, painting in this case does not bring long-term success. Over time, the problem reappears. Therefore, we must act radically.

For work you will need:

primer;
sandpaper;
knife;
acrylic paint;
putty knife;
putty for seams;
roller;
tassel;
finishing putty.

For a better hitch with putty crack needs to be expanded. Using a nail, scratch the damaged area. Then the crack needs to be covered with a primer. For this purpose, you need a small brush. After a few hours, the area must be putty putty putty for seams (it is much stronger than usual). Using a trowel, level the putty to the level of the ceiling.

When everything is dry, the layer of putty will settle, as a result of which the defect can tread again. Therefore, you need to apply 2-3 layers of putty. After applying each layer, wait until it dries.

The last layer is applied not level, but in a thin layer, slightly protruding from the base. After drying the place is ground in a circular motion. This is done with sandpaper. You just have to prime the surface and then paint it.

Fill holes

Oddly enough, this is one of the easiest types of ceiling repair. Depending on the size of the damage, there are 3 methods for sealing holes.

Small hole. Old newspapers and plaster plaster will help to eliminate it. For this you need:

align the edges of the hole, clean them from chipping and crumbs, then primed;
then crumple the paper and tamp it in the hole so that it is flush with the surface of the drywall sheet;
with a putty, place the edges and the paper itself;
after 3-4 hours a solid base will be obtained, on which you need to apply a couple of layers of gypsum mortar;
then apply a layer of finishing solution;
when it is dry, the place is ground and coated with a primer;
at the end you just have to paint.

If the hole is large, up to 50 cm, you need to insert a patch. Procedure:

from a sheet of drywall need to cut a patch that will be slightly larger than the size of the hole (it must be the correct shape, square or rectangular);
after which it should be attached to the ceiling and draw a pencil cut line;
make a cut along the intended contour of the patch using a jigsaw;
clean the edges of the hole, run the ends;
place 2–3 pieces of the mounting plate or board into the hole, screwing them along the edges of the hole in the drywall;
put the patch in place and secure it by screwing it to the bar;
it remains only to seal the gaps with a putty, polish and prime the restoration site;
The final touch is the surface finish.

There is no point in repairing holes larger than 50 cm. It takes a lot of time and effort. It's easier to just replace the drywall sheet with a new one.

Remove stains

If the stain is formed during flooding, it must be cleaned and painted over. Procedure:

clean off all that exfoliates;
pass the site of flooding antibacterial primer, and then the usual penetrating;
apply 1-2 layers of acrylic putty;
paint over the spot formation spot.

Believe in yourself

As you can see, the repair of the ceiling can be done by hand. At first glance, this task may seem complicated, but all the work can be easily performed without the help of specialists. It is enough just to believe in yourself and follow the instructions for performing the work. If any of you have already done this repair, you can share your experience in the comments. How long have you been doing it? Is it hard? Is it a newbie?

Video

An example of repairing a drywall ceiling is below: