Repairing a badly worn floor coveringor arranging a new one, it is worth thinking about the responsibility and importance of holding such events. Such flooring should harmoniously fit into the overall interior of the room, adding notes of completeness and sophistication.
Dry floor screed diagram.Traditionally, before carrying out the main works, the floor surface must be leveled, for this purpose a screed is made. Such a coating can be wet or dry. The wet method of leveling the surface is used most often, however, such activities take a lot of time and are quite difficult to carry out. In addition, such work is dusty and dirty. Dry floor screed allows for installation using a simplified scheme.
The main points of using the dry floor leveling method
Important parameters of such coverage:
Tools for floor screed.
What you need for work:
- metal profiles;
- polyethylene film;
- Edge band;
- expanded clay;
- gypsum-fiber sheets with a moisture-resistant base;
- self-tapping screws;
- glue.
Attention! The method of such base leveling is carried out with blocks in compliance with the main stages of the work. Return to the table of contents</a>
Surface preparation
Dry screed for floor covering.Dry floor screeding is done by hand when all plumbing and electrical work has been completed. The start of such activities should be associated with monitoring the heating, sewerage, and water supply systems. The old coating must be removed, and subsequent work is associated with leveling the surface. Any chips, pits, and cracks are sealed with cement mortar. Protruding elements are removed with a grinder and then processed. Upon completion of the work, debris is removed with an industrial vacuum cleaner. Marks are made on the walls indicating the level of the finished screed. Polyethylene or parchment is laid on the finished floor with an overlap of 15-25 cm. When it reaches the walls, the film should rise to the previously designated level. This height is most often equal to 6 cm. The type of material used is determined by the surface features. Concrete coatings require laying polyethylene, the thickness of which is 200-250 microns. Paper impregnated with bitumen or parchment is laid on the wood covering.
Leveling of bulk material under dryscreed. Installation of a vapor barrier layer is a must. The absence of such protection will lead to gradual destruction of the floor. Taking into account the fact that extraneous sounds penetrate into the room through dense parts, the space between the partition and the surface of the dry screed is left free. Such a gap has a width of 8-10 mm. Sound-absorbing tape based on mineral wool, fiberglass, polyethylene foam is glued over the entire area of the room. Thus, sounds will not penetrate into the room, and the floor surface will be perfectly smooth as a result of periodic expansion from heating. It is known that dry screed is a loose substance that cannot be leveled without special devices. Feet will quickly get stuck in such a mass, and the integrity of the coating will immediately be damaged. To give the screed perfectly even indicators, beacons are used. As an analogue of such elements, U-shaped guides are often used, they are placed with the tip up and fixed to the base. Expanded clay is poured between them later. Return to the table of contents</a>
The process of leveling the floor with a dry mix
Technical characteristics of leveling mixturesfor floors. The process of dry leveling is associated with the homogeneity of the composition itself. Here you can use expanded clay, quartz sand, fine-grained slag, perlite. The named raw materials retain heat well, do not give extraneous sounds a chance to penetrate the room, practically do not sag and are lightweight. Many dry mixes are characterized by such features. Accordingly, a large number of existing irregularities require backfilling a significant volume of dry matter. In addition, the necessary communications must be laid in the backfill layer. Usually the height of such a layer is 3-4 cm, it is impractical to make it more than 6 cm. Larger heights require reinforcing the screed with sheet material. The amount of dry matter is determined by the course of the work: do not take a lot at once, it is enough to gradually, laying out the sheets, pour a small volume of the substance. Otherwise, the process of moving around the room will be difficult due to the legs getting tied in the dry material. In addition, small elements of such material will end up on the adhesive zone, interfering with the process of fixing. Return to the table of contents</a>
Layout: Recommendations
Scheme of laying dry floor screed sheets.The sheets are laid out on a pre-leveled surface. This includes flooring from various manufacturers, wood chip boards, tongue and groove and gypsum fiber coverings, plywood with a moisture-resistant base, asbestos cement boards. Such materials are laid out in turn, securing them to each other. The hardest thing to work with is the first sheet, as other coverings will be secured relative to it. It is not recommended to deepen it too much and move it along the surface. All materials are laid on a dry surface so that the start of work coincides with the location in the doorway. In this way, you can maintain the smoothness of the surface. Sheets laid on heat-insulating boards require laying from the wall located on the opposite side from the doorway. Taking into account such material indicators as thickness and type of composition, the boards are laid in 1 or 2 layers. The fold is pre-cut from gypsum fiber materials. This creates a double layer of such sheets throughout the room. Laying this material is associated with a mandatory offset, reminiscent of brickwork. In this way, you can achieve special strength and stability of the coating. It is difficult to place such sheets alone due to the large mass of the material. The prepared plates are fixed with self-tapping screws. They are screwed in every 10-15 cm. You can give the coating additional strength with construction glue. Unevenness and seams can be covered with putty and sanded. The upper part of such sheets is treated with bitumen. Now you can start laying any finishing coating after the dry leveling of the floor is carried out. Return to the table of contents</a>
How long does the process last?
Types of fastening dry floor screed covering slabs.Basically, the process of making a dry screed is much faster than preparing a concrete base. The mixture is poured and leveled in a short period of time. The time spent on this is in no way comparable to mixing concrete, even if they have the same volume. In addition, the process of screwing in screws and spreading glue on the base leads to a loss of several hours. And the process of laying sheets requires special care and a low speed of such work. The process of constructing a dry screed is quite simple and primitive. There is no need to buy special devices and wait for favorable weather. Work is carried out in any season in the shortest possible time. The dry coating will not harden ahead of time, and the quality of the work will be at its best. Even a beginner can handle such work. A dry floor screed laid with your own hands allows you to carry out further finishing activities immediately. Such a coating has the same soundproofing and excellent heat-retaining properties.</ ul>
