One of the easiest and most effective ways to level the surface is wall decoration with plasterboard sheets. There are two ways to fix the material: frame and frameless. The frame method involves the use of special metal profiles, which slightly reduces the area of the room. In certain cases, it is preferable to use the frameless mounting method. Almost anyone can cope with the frameless installation of drywall sheets, it is only important to know how to properly attach drywall to the wall.
Fixing drywall sheets in a frameless way allows you to save space in the room and the money spent on repairs. However, it is not always possible to stick the material to the wall. For this installation method, three conditions must be met:
- on the surface there should not be strong irregularities and various defects larger than five centimeters in size;
- the walls of the room do not need insulation with foam or other material;
- behind drywall, you do not need to hide any engineering systems in the house.
Frameless installation method is great for decorating small rooms. It is possible to level with plasterboard sheets not only walls, but also ceilings. GKL can be glued to the following surfaces:
- brick walls;
- plastered surfaces;
- aerated concrete;
- walls of foam blocks;
- polystyrene foam concrete surfaces;
- ceramic tile.
For successful repair work it is important to choose the right adhesive solution, prepare the surface well and follow the recommendations for frameless material fastening.
Types of glue: how to choose the right one?
The choice of adhesive mixture for fixing drywall depends on a number of factors. First of all, it is the type of surface material to be finished. Modern manufacturers of building materials are ready to offer a wide range of drywall adhesive. We highlight the main types of mixtures that are suitable for gluing the material to the surface:
- On a gypsum basis. The most popular gypsum mixtures are Knauf and Volma.
- Polyurethane adhesive.
- Polyurethane foam sealant (polyurethane foam).
- Tile adhesive.
- Silicone adhesive mixtures.
- Liquid Nails.
- Plaster mixes on the basis of plaster or cement.
- Foam plaster.
Universal compounds are suitable for working with almost all types of coatings, be it concrete, foam block walls, brick or aerated concrete slabs. For a smooth concrete wall, a concrete contact solution is an excellent option. Silicone-based compounds are suitable for fixing the material on completely smooth surfaces (for example, plastic or tile).
In addition to using special adhesive solutions for drywall, fastening can be done using polyurethane foam sealant and self-tapping screws. Foam for gluing drywall sheets on the wall is rarely used, since the process of such finishing work is not easy.
Tips for difficult cases
Frameless installation method of drywall is much simpler than the frame. Glue the material with your own hands is not difficult. However, with this method of fastening, in certain cases, some difficulties may arise in carrying out repair work. The complexity of the process of gluing drywall sheets to the wall depends on the following factors:
- type of surface;
- drywall quality;
- type of adhesive mixture;
- level of surface roughness.
Given some recommendations for working with various surfaces, it is possible to significantly facilitate the installation of GCR. The method of applying glue depends on the type of surface, as well as on the level of roughness of the wall. Consider some recommendations for working with adhesive mixtures:
- When working with an aerated concrete base, it is worth remembering that glue needs to be applied to the wall, and not to drywall sheets.
- If the walls are almost even, the solution can be distributed over the entire sheet of drywall. You can also put the adhesive mixture in separate "heaps" around the perimeter and in the center of the sheet. The larger the area will be covered with glue, the more reliable the mount will be.
- During installation, it is necessary to carefully monitor the level of sheets already glued. If necessary, the surface is leveled with a carpentry hammer.
To decorate rooms with a high level of humidity (kitchen, bathroom, basement, balcony), it is necessary to purchase sheets of drywall with moisture-resistant properties. The adhesive mixture should also have good moisture resistance.
Very smooth concrete walls must be treated with a concrete contact to increase the adhesion level. If the surface was previously plastered, you need to make sure that there are no areas on the wall with crumbling or exfoliated plaster.
In order for plasterboard sheets to firmly stick to the wall, the surface must first be prepared. First of all, the old finishing coating is removed from the base, whether it be wallpaper or paint. Acrylic-based paintwork material is smoothed using a grinder with a nozzle in the form of a petal grinding wheel. Aqueous emulsion ink can be removed from a concrete wall with a hard metal brush.
After the old coating has been cleaned, it is necessary to remove dust and dirt from the surface. To improve adhesion, the wall must be primed. If there are serious defects or irregularities on the wall, then GKL cannot be glued to such a surface without prior alignment.
Before starting the finishing work, it is necessary to prepare all the necessary tools, calculate the required amount of glue and take measurements on the surface. Adhesive consumption will depend on the type of solution selected. Five kilograms of a solution can take up per square meter.
In order not to be distracted during the finishing work to find the right tools, it is better to prepare them in advance.
For gluing drywall to the walls, you may need the following devices:
- building level;
- construction plummet;
- drywall knife;
- container for adhesive solution;
- construction mixer, which will be required to mix the glue;
- joiner's hammer for leveling GKL;
- gear spatula for applying the adhesive mixture;
If you purchased the adhesive mixture in a dry form, you need to prepare a solution suitable for application. In this case, there are no specific recommendations for the manufacture of the adhesive composition, since this process depends on the type of glue purchased. Detailed instructions for mixing the solution can be found on the packaging.
In addition to the adhesive mixture, a putty will be required for the final installation phase. Using a putty mixture, grouting of the joints between the sheets of gypsum board will be performed.
Having prepared the tools, glue and drywall itself for finishing work, it is necessary to make markings on the wall for the material.
In accordance with the measurements and the established marking, sheets of drywall are cut. It should be borne in mind that the height of the sheets should be less than the height of the walls by about two centimeters. The difference in height is necessary so that during installation it is possible to make small gaps between the gypsum board and the floor, the gypsum board and the ceiling. For all sockets and switches available in the room, holes must be made in drywall in advance.
The technology for further work on gluing walls with plasterboard sheets will depend on the level of surface roughness.
Concrete or well plastered walls usually have a practically flat surface. Gluing drywall on such a base is quite easy. The only difficulty that may arise during installation is the installation of electrical wiring.
Electrical wiring is located under the GCR. When the design does not allow the wires to be placed in such a way that they are not pressed by plasterboard sheets, you need to ditch the wiring holes in the wall.
After the problem with the wiring is solved, the glue is prepared and the finishing material is cut, you can proceed to gluing the surface. The adhesive solution is applied to the drywall sheet using a notched metal spatula. If possible, glue as much area as possible with glue.
Plasterboard is installed on wooden beams, which play the role of a kind of footboard. Through the holes made in the sheet, the cables are passed through or the switches and sockets are pushed through, after which you can begin gluing the walls. The plate must be slightly raised and well pressed to the base. Using the level, vertical alignment occurs, then the sheet of drywall must be pressed against the wall with even greater force.
Brick walls most often have bumps within five centimeters of the normal level. Gluing drywall onto a surface that has slight irregularities is practically no different from the previous method.
In this case, special attention must be paid to the choice of adhesive solution. To clad an uneven surface, apply glue to the finishing material with a large layer. Some types of adhesive mixtures allow the application of layers of no more than two centimeters, which in this case may be insufficient.
Apply the adhesive mixture to the material must be "piles". The distance between the glue points should be no more than two and a half centimeters. In the center, the mixture is distributed at intervals of four and a half centimeters. The plate is installed on the beams, slightly pressed against the wall, aligned vertically and pressed to the surface again.
On strongly uneven walls, it is advisable to mount drywall on metal profiles. However, it is also possible to adhere material to a curved surface. In this case, there is no need to shatter the wall for wiring. Wires can be easily laid in recesses and secured. Further work is carried out in the following sequence:
- Several plates need to be cut into separate parts with a width of not more than fifteen centimeters. Such pieces will serve as the basis for the drywall coating. The number and length of stripes depends on the size of the room.
- Cut pieces must be glued to the walls at a distance of no more than sixty centimeters from each other.
- After the base has completely dried, plasterboard labels are made from strips of drywall. A glue solution is distributed on the surface of the installed beacons and a whole sheet of drywall is glued to the base.
We fasten the sheets together
There are times when it is necessary to stick one block of drywall to another. Gluing sheets together is not particularly difficult. Surface preparation in this case will not have any features. First, cleaning from contamination is carried out, then - surface priming. If there are seams between the sheets on the old drywall coating, they must be repaired. It should also be noted that the seams on the inner and outer layer should not match.
By means of polyurethane foam
Foam is used less often for gluing drywall sheets. This method takes a lot of time and effort, if only because the plates need to be well pressed against the wall every fifteen minutes for an hour.
There are several different methods for attaching drywall using mounting foam. The most common ways:
- using self-tapping screws;
- sizing with foam itself.
In the first case, in the GCR using a drill, it is necessary to make holes in an amount of at least twelve pieces. Then the plate is pressed against the wall and the location of the drilled holes is marked with a pencil on the surface. All marked points on the wall are drilled under plastic plugs into which self-tapping screws will be screwed in to fasten GLK.
With the help of screws or screws, sheets of drywall are attached to the wall. Near the attachment points, several more holes are drilled through which the space between the slab and the wall is filled with mounting foam.
For fixing drywall sheets with foam, it is not necessary to resort to the use of self-tapping screws and drilling. But this method is acceptable in the case of facing very smooth walls. Foam is applied on the back of the sheet. After distributing the mixture, you must wait fifteen minutes, and then attach the panel to the wall.
Drywall is not used as a finishing coating, but serves as an even base for painting, wallpapering or any other decorative coating. After the material is glued to the walls, it is necessary to carry out a number of final works on preparing the surface for subsequent finishing:
- Joints between sheets of drywall must be repaired. To solve this problem, you can use various putty compositions. Joints are rubbed with a narrow metal spatula.
- Without waiting for the putty to dry completely, you need to attach a reinforcing tape.
- The second layer of putty is applied after the previous one has completely dried. Drying time depends on the type of mixture. It averages twelve hours.
- After the second layer of the putty mixture has completely dried, the drywall coating must be primed.
- The primed surface is completely putty.
- If the coating is not smooth enough, the surface must again be primed and a second coat of putty applied.
- Roughnesses and roughnesses on the finished coating are removed with sandpaper.
- The last step will be another priming of the surface, after which it will be possible to proceed to the finishing of the walls.
For how to glue drywall to the wall, see the next video.