How to seal seams between panels on the ceiling

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Such troubles as the formation of cracks between the ceiling slabs on the ceiling, or simply the manifestation of once not quite successfully sealed joints, are very often found in paneled apartment buildings. Therefore, when the first signs of such phenomena need to take action. And for this it is required to know the information how to seal the seams between the panels on the ceiling independently, without resorting to the call of specialists-finishers.

How to seal seams between panels on the ceiling

How to seal the seams between the panels on the ceiling

If the apartment is located on the on the last, top floor, and on the ceiling there is a gap between the slabs, then it is possible AS that soon from it will start to drip, that in the rooms can appear a persistent smell of dampness and mold or mold fungus, and besides, the heat will quickly leave the room. These circumstances are especially unpleasant in the cold months of the year. Therefore, in the similar to the case, repairs need to start with a roof revision, since if you can not cope with the flaws of the roofing, then close the slots from the inside and

align ceiling - this is wasted labor.

If osmo tp kr yshi allows you to argue that the roof is all right, then you can safely proceed to repair the ceiling. In the case where it is found that the waterproofing roofing material is damaged, then it is necessary for the beginning to take steps to repair it, for example, to replace the sheets of roofing material, which is usually covered with a roof in multi-storey houses with a flat "soft" roof.

Perhaps, if the apartment is located on the top floor, you will have to start with roof repairs

Perhaps if the apartment is located on the top floor, you will have to start with the roof repair

However, the seams can crack not only on the upper floors, but on any others. This is the usual consequence of shrinkage processes at home.

So, making sure that no external factors do not spoil t t rudoemkuyu work on sealing the seams of the ceiling, you can proceed to repair activities inside the apartment.

Seam seal on the ceiling

Content of the article

  • 1 Seam seal on the ceiling
    • 1.1 Materials and tools
    • 1.2 How to seal the seams between the panels on the ceiling - do it ourselves
    • 1.3 Video: repair of joints between the slabs
  • 2 Sealing holes in the ceiling
    • 2.1 Video: sealing a solid hole in the slab

If a small crack forms between the plates, then should begin with with its extension. It often happens that the process of cutting even a small crack or gap suddenly opens up "large horizons" of work. Therefore , since we have reached the hands before this repair event, it should be done immediately on conscience, in the full volume , so that more to this issue not to return a long time.

If you want to solve two questions immediately - sealing the seam and leveling the ceiling, you need to clear the entire seam from the old concrete. Usually, it is not difficult to do this, because when building houses, to seal seams use not too strong cement mortar.

Materials and tools

In order not to repeat the mistakes of the masters who worked on the ceilings of the ceilings during the construction of the house without due diligence, it is necessary to purchase quality materials and all the tools necessary for the work. It is necessary not just to cover, but neatly to remove the seam and carefully compact it when closing.

So starting the work you need to purchase:

1. Tools will need medium, wide and narrow spatula, atomizer, narrow brush metal, wide brush, container for kneading mortar, construction knife and drill with a perforator.

2. It is possible to fill up the slots using different materials, and it is worth mentioning all that may be useful.

  • Primer for deep penetration - is required for better adhesion of the surface and material, which will seal the joint between the plates.
Primer for the preliminary preparation of a concrete surface

Primer for the preliminary preparation of the concrete surface

  • Cement SC , which is designed for sealing deep seams. This material has the property of expanding when solidified, densely filling the entire space of seams and joints.
Цемент "НЦ" - отлично подойдет для заделки швов

Cement "NC" - perfectly suited for sealing joints

  • If a wide seam is found that requires sealing, it is necessary to purchase dense insulation materials made of polyurethane or foamed polyethylene .Foam can be used instead.
  • Latex elastic putty is required.
  • A reinforcing mesh-serpyanka is needed. The width of the of its will depend on the width of the - joint, the tape should extend beyond its boundaries by 40 ÷ 50 mm on both sides.
  • For final finishing, the primary and final putty is required for the entire ceiling area.

How to seal the seams between the panels on the ceiling - we make

Remo nt shv s between the slabs necessarily draw bringing all the ceiling in order, so it's worth starting with a complete cleaning of the surface from paint, whitewash and possibly plaster.

  • Use a spray gun to spray the ceiling with water. It is better to spray not all the ceiling at once, but in parts. Well the humidified the site is left for 10 ÷ 15 minutes for impregnation, and then the old coating is removed with the help of a wide and medium spatula. After this, you can go to the next section, where you need to conduct the entire procedure first. Such work is carried out until the whole plane of the ceiling is completely cleared.
  • The is in 's old cover, the host will immediately see the volume of the of the upcoming works. Usually for one room it is necessary two or three joints of plates of overlapping. Sometimes they are covered up very sloppy and appear ugly hump. These bulges need to be eliminated and make the ceiling perfectly smooth.

For this you need to take a punch, install the necessary nozzle on it, switch to a shock mode without rotation, and step by step release the joint from the old frozen solution.

The seam should be carefully trimmed

The seam should be carefully trimmed

The joint and the plate around it must be completely cleaned, and the slit itself must be buried no less than 50 mm.

  • Next you need to take a narrow iron brush or a wide brush and carefully clean the gap of dust and small pieces of concrete.
Cleaning of the seam from dust and fragments of the old solution

Cleaning of the seam from dust and fragments of the old

  • solution The next step is the treatment of the slot with a primer in several layers of , each of which must dry out. The primer will harden the frozen solution remaining inside the joint, will not allow the formation of dampness and fungus in , it will provide a good contact with the repair composition, which will be applied later.
  • If the gap between the joints is wide enough and is more than 30 ÷ 35 mm, means , first you need to fill with its with mounting foam. It will adhere well to the primed surface and, expanding, fill the entire opening.

Frozen, the foam will come out of the seam, and when it completely dries, its is carefully cut so that the at the joint of the slabs in the foam produces an groove , a depth of 30-50 mm, tapering inwards ,.

  • If a deep joint is detected during cleaning, but is narrow at the same time , then it is worth to proceed as follows.
Sealing rolls made of foam polyethylene

Sealing rolls made of foamed polyethylene

Having chosen the sealant of foamed polyethylene of the desired thickness, on one side of is applied with a strip of sealant and filled into a cleaned and primed joint with a spatula leaving a place for filling with concrete.

  • Further, the joint is sealed with a solution of expanding concrete, but it is necessary to leave a small cavity at the junction for expansion of the mortar and decorative plaster.
Заделка шва бетонным раствором "НЦ"

Concrete sealing with "NC" concrete solution

  • After the grout has dried or grouted in a dry foam, a latex filler is applied to the joint. The work is better done using two spatulas - wide and medium or narrow. On a wide spatula, a solution of of the tank is taken, and the narrow one is applied to the joint between the plates, sealing into the seam and leveling to the level of the ceiling surface while removing excess putty.
Joint of plates after concrete fixing

Jointing of plates after embedding with concrete repair composition

  • After 2 ÷ day, which will be required for drying, proceed to reinforce the joints. To do this, put a thin layer of the putty on the seam and the ceiling next to it in the strip 50 ÷ 60 mm, fix it to with a serpentine net, pressing it into the solution and removing its excess with a spatula.
Application of a primer to the surface of the ceiling

Application of primer to the ceiling surface

  • After the seams have dried, the whole ceiling is treated with a primer, applying to it with using a roller. It is better to cover the surface with two layers of the composition.
  • When the ceiling is dry, you can proceed with its plastering. First apply a thin layer of primary plaster, and after its drying put a final finishing smooth layer. It is applied with a wide spatula and at the same time leveled to the ideal.
Finishing - Ceiling Filler

Finish - Ceiling Fill

  • After the finish coat has dried, paint can be applied to the ceiling, whitewash or wallpaper.

Video: repair of joints between slabs

Fixing a hole in the ceiling

Sometimes it happens that, when cleaning a seam from an old solution, opens not just a narrow slit, but a large hole - defe of the overlap. In this case, this hole can be sealed in two ways.

Иногда на потолке при разделке швов может появиться и такой "сюрприз"

Sometimes on the ceiling when cutting seams, there may be a "surprise"

In any case , the first thing you need to do - is to carefully clean the inside of the formed hole. This process is best done using a narrow brush .

1. Having released dirt from the inside of the hole, its should be well sprayed with a primer. After waiting for the first to dry out its layer, it is necessary to apply the second one.

  • Next, the hole is filled with mounting foam.
  • Then, after its drying and expansion, the excess is cut off, and a cone is cut from the inside of the hole, at the base the size of the hole, and 40 to 50 mm in height.
  • This cutout is necessary for fixing with cement mortar, which is superimposed by the next step. It is leveled with a spatula and left until completely dry.
  • Then, putty is put on the place where the hole was and around 50 ÷ 70 mm, and the is pasted on the mesh, which is pressed into with the layer of the solution, is smoothed and left to dry.
  • Next work goes just like when sealing seams.

2. Another method of embedding differs from the first one, and it is used in the event that a large size cavity was found in the ceiling.

  • In this case, you need a piece of plywood( you can use the scraps of the laminate) about 100 mm larger than the size of the hole.
  • Then, it is necessary to fix the grating in the hole from the wire, which must be fixed to the sealant or cement slurry inside the hole. After the solution has dried, the wire must be reliably fixed inside the of the opening. Lattice will serve as a repair mortar, with which they will create a kind of slab.
Fixing a volumetric hole in a ceiling overlay - an example scheme

Fixing a solid hole in the ceiling - approximate scheme

  • The prepared concrete plywood is laid mixed concrete, it must be uniform and not excessively thick.
  • The plywood area with the solution is lifted and pressed against the hole so that the solution completely fills the remaining cavity. It will be necessary for to come up with a reliable support for this unique formwork , which will hold its until the repair composition dries completely. For this the thick branch, bar or pyramid from the table and chairs is suitable.
  • After drying the solution in the , the opens to a perfectly flat ceiling surface.
  • Next, the can begin work on putting the whole surface of the ceiling in order.

Video: sealing a solid hole in the slab

It should be noted that the joint between the slabs is quite possible to update independently. But the complete plastering of the - ceiling is quite a challenge, so its is best entrusted to the experienced master-finisher. However, if there is a desire and confidence in their abilities, and this is quite feasible.

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