Concrete ceiling in the interior of the room is a modern trend of design art. Previously, concrete was used only as a rough finish, in need of plastering and painting, but now the situation radically changed and this building material is used for finishing the walls and ceilings in the bathroom, bathroom, guest room. The fact is that the use of concrete in the interior as a finishing material helps to shade bright colors and textures. Its advantage is an excellent combination with metal and wood products. A few years ago, few could have guessed that the apartment can simply leave the concrete flooring without any finishing. This could be imagined only in the garage or in the workshops, but gradually the popularity of concrete as a finishing material has increased because of the great demand for style loft, minimalism, industrial.
What is the popularity of concrete?
This brutal material in the hands of the designer can turn into an attractive and aesthetic. He will not yield to pottery or stone.
The main advantages of concrete include:
- not very high cost;
- fire safety;
- resistance to moisture, mold, fungi.
The concrete cover gives laconism and rigor to the room, bright spots in the form of pictures or photos look great against its background, but it is not worth using concrete for finishing children's rooms, it puts too much pressure on the psyche of the child with its dullness and rudeness.
Since it is not very practical to make ceilings made of real concrete in apartments, it is possible to imitate this material. Apply decorative concrete slabs, decorative paint and plaster, which mimic concrete surfaces, architectural concrete, micro cement. The combination of architectural concrete and micro cement will create the most real effect of a concrete screed with color transitions and a characteristic roughness of the surface.
Important points when creating a concrete ceiling
The technology of pouring the ceiling with concrete is not as complicated as it might seem at first glance, and the practicality of such a ceiling leaves no doubt, because the concrete overlap makes the room more durable and durable. Among the disadvantages can be noted a considerable weight of concrete and the duration of work.
Before work, it is necessary to clean, primer, seal ceilings in the ceiling and carefully calculate the thickness of the concrete, taking into account the load that the surface will have to withstand. If the overlap will have a thickness of less than 15 cm, then it is reinforced with metal reinforcement. The reinforcing material is laid crosswise and joints are welded. For formwork waterproof plywood and boards are used. Filling is quite simple, especially if it is carried by two people. Work is carried out from the corners, along the way, leveling is carried out and air bubbles are removed from the mass. For 2 months, the ceiling sheet is left to dry together with the formwork. If you remove the formwork earlier, then on the ceiling there will be cracks and the integrity of the surface will be broken.
Many owners of living rooms in the loft style are thinking how to insulate the concrete ceiling. Since the ceiling is the floor of the next floor or attic space, then people from the last floors or single-storey houses can insulate it from the outside. Others have to insulate their ceilings from the inside. This can be done using a wireframe and frameless structure. The choice of the scheme depends on the type of insulation, ceiling height.
With the frameless structure, thermal insulation is provided, while the ceiling practically does not lose in height. In this scheme, use rigid thermal insulation materials that are firmly mounted on the ceiling, and then finished the finish. With the frame structure provides a comprehensive protection of the concrete ceiling due to the presence of layers of heat, sound, hydro, vapor barrier, but the skeleton method of insulation reduces the height of the ceilings by at least 7 cm.
When choosing a thermal insulation, one should pay attention to the following characteristics:
- resistance to the appearance of mold and fungi;
- light weight;
- moisture resistance;
- heat resistance;
- environmental friendliness.
There is a large number of insulating materials of organic and inorganic origin and every day they become more and more. The choice depends on the height of the ceilings, the desire of the buyer and his financial capabilities.
You can choose foam or its varieties (polyvinyl chlorid
e, polyurethane foam, expanded polystyrene). You should choose a material with a low thermal conductivity. When choosing foam, remember that it does not absorb noise.
Before carrying out the insulation of the concrete ceiling from the inside, it is necessary to remove all irregularities (leveling), then to conduct a primer of the surface and cement all the cracks with cement.
Perform waterproofing of the ceiling with insulating means of deep penetration. This can be a bitumen or a polymer mixture. When the waterproofing dries, make a marking sheet, so that there are no narrow strips or small insets of insulation. On the marking, stick the sheets of foam with a sealant, joining the sheets tightly to each other and to the walls.
When the work on aligning the joints is finished, the ceiling is allowed to dry (day). After drying, a fiberglass reinforcing mesh is laid on top of the foam plastic on a thin adhesive layer of PVA with a 5 cm allowance of strips on each other and on the walls. You can not allow any sagging and bubbles. After leveling and fixing the reinforcing mesh, proceed to the main fixing of the insulation to the ceiling with the help of fungal dubs. The result is a smooth surface, which is then leveled with gypsum or cement mixture, and painted.
Instead of solid heaters, stone wool is also used, but the process of insulation becomes more difficult to perform, since the fibrous insulation is difficult to fix.
Skeleton thermal insulation with mineral wool
This way of warming the concrete ceiling is more expensive and more difficult, but still it is the most common.
The ceiling must be cleaned from all delaminations, worn parts, then primed with latex mortar. When the primer dries, seal and coat the cracks, and align the rest of the surface with a cement-based mixture.
After curing, the ceiling is waterproofed with a penetrating waterproofing agent. For a vapor barrier, dense polyethylene is mounted on the frame. The frame is made of gypsum board or treated with antiseptic wooden bars, which are fixed with self-tapping screws. Sheets of insulation are located between the frame and the concrete base. After filling the whole ceiling surface with a heater, another layer of film is placed under the frame. Then the plasterboard, siding or decorative tiles (depending on the chosen material) are attached to the frame of the insulated ceiling, finishing finishing is carried out if necessary.
If the loft style is formalized, there is no need to hide communications. Radiators of heating, pipes, ventilation, electrical wiring will only complement and emphasize the style of the room.
Than to cover a concrete ceiling, everyone solves itself to the taste. There are several options for finishing the concrete ceiling.
This is a simple and low-budget method. You will need lime or chalk, which is diluted with water. For complete painting of the whole area of the ceiling, it will be necessary to process it two or three times. In this case, you will get a perfectly flat white surface. If you want the ceiling to look different, you need to add a coloring pigment of the right color to the lime. Cover the ceiling with whitewashing with a paint spray gun. The disadvantage of whitewash is its fragility and reaction to high humidity. It will often be necessary to refurbish the painted ceiling.
Better finish of the concrete ceiling. For painting, use acrylic or water-based paint. It is applied with a brush, a roller, a sprayer, but before painting the concrete ceiling with a water emulsion, it should be carefully prepared and leveled, and the concrete substrate treated with a primer.
In this case, the finishing of the concrete ceiling, decoration, leveling, preparation for painting, puttying, priming is not required. Small incrustations of concrete will produce the desired effect. For brutality, metal or wooden structures can be used. Will only just illuminate the room.
Ceiling of concrete almost does not require any decoration, so you can save money on repairs. Most often, people who use this style simply attach lighting fixtures.
If you plan to paint a concrete ceiling, you can do this with a thin layer and uneven strokes, which adds color to the concrete surface. Attach to the concrete decorative wooden or metal beams. If you want to increase the severity and coolness of the interior, then you can plaster the concrete ceiling and coat it with a colorless varnish.
For a style such as a loft, not all types of lamps are suitable, so it is important to know how to hang a chandelier on a concrete ceiling so that the room does not seem gray, uncomfortable and low, because the concrete ceiling coating reduces the visual height of the room.
You should know that the ceiling of concrete in loft style should be lighted so that it does not seem gloomy and uncomfortable. The fixtures hanging from above are best suited for this style:
- Lamp of Ilyich. Apply conventional incandescent lamps without plafonds, placed above the working areas. You can make suspensions for lamps of different lengths and the bulbs themselves can be of different power, size.
- Halogen lamps. They have different directions and will be able to emphasize the desired surface area.
- Chandelier in the form of a fan. Such chandeliers adorn and well illuminate the ceiling of concrete.
igh tech. Unusual and bright chandeliers in hi-tech style are perfect for loft, and the grayish shade of concrete emphasizes their originality.
- Retro. You can choose retro lights that will emphasize the asceticity of the room.
If you know how to hang a chandelier on a concrete ceiling and do it correctly, then the concrete surface will play with different colors and reveal the incredible faces of shades of gray. You can experiment with the lights and show your creative origin in the loft style.
Concrete ceiling in loft style is perfect for spacious premises, the distinctive feature of which is brutality, the presence of brick, concrete, metal structures. If the work on creating a concrete ceiling is qualitatively done, the lighting and furniture corresponding to the loft style are chosen, then the ordinary concrete will be opened in a new way.